Threaded element having a ring cross-section

Abstract

The invention relates to a threaded part (1), in particular a hollow screw or nut, having a ring cross section, having a hollow-cylindrical base body which is at least partially injection molded from a plasticized polymer mass (2) containing fibers, wherein the base body has at least one internal and / or external thread (4) and has an internal channel (6) for arranging and / or guiding a linesystem element (8). The internal channel (6) is configured with at least one sealing section (10) for arranging a peripheral seal for sealing between the internal channel (6) and the linesystem element (8) and / or at least one support section (12) for supporting and / or guiding the linesystem element (8) and / or at least one retaining section (14) for directly or indirectly locking the linesystem element (8). An insert sleeve (20) is arranged coaxially to the internal channel (6) in the base body, which is at least partially enclosed by the polymer mass (2) such that the insert sleeve (20) is at least partially radially directed toward the internal channel (6) and radially surrounded by the polymer mass (2) away from the internal channel (6). The invention also relates to a method for producing such a threaded part (1).

Description

Technical Field

[0001] This invention relates to a threaded component, particularly a hollow screw or nut, having an annular cross-section. The threaded component has a hollow cylindrical matrix, at least partially injection-molded from a plasticized polymer material containing fibers. The matrix has at least internal and / or external threads, and an internal channel for arranging and / or guiding a pipeline system element in the insertion direction. The internal channel is configured with at least one sealing section for arranging a circumferential seal for sealing between the internal channel and the pipeline system element, and / or configured with at least one support section for supporting and / or guiding the pipeline system element, and / or configured with at least one retaining section for directly or indirectly locking the pipeline system element.

[0002] Furthermore, the present invention also relates to a method for manufacturing such threaded parts. Background Technology

[0003] This type of threaded fitting allows standardized threaded holes, particularly ISO 4039-2 or ISO 6149 conformals, into which piping system components, especially the plug portion of mating connectors, are inserted. Optionally, such threaded fittings are also used to reduce the number of threads.

[0004] WO 2013 / 092234 A1 discloses such a threaded component and a method for manufacturing the same. Here, the internal channel is divided into multiple axially arranged functional sections for abutting a circumferential seal, thereby directly or indirectly retaining and / or locking pipeline system elements designed as plug components and / or supporting and / or guiding plug components. Using a specific manufacturing method, WO 2013 / 092234 A1 enables the threaded component to be manufactured with increased strength, particularly increased axial tensile strength. Specifically, during manufacturing, the gating system points towards the internal channel and is located within a section of the internal channel that is not used for abutting a circumferential seal or retaining and / or locking a plug component into which the threaded component can be inserted. In particular, the varying local shrinkage behavior during the solidification of the polymer material leads to deformation, which particularly makes assembly more difficult and / or results in uneven stress distribution under load.

[0005] To achieve improved stress behavior, WO 2015 / 158805 A1 discloses a threaded part in which recesses are generated in the threaded region relative to the injection point region, which are separated by the walls of the matrix, and these recesses optimize the distribution of polymer material, particularly in the threaded guide region of the threaded part.

[0006] Even though WO 2015 / 158805 A1 discloses a threaded part with less deformation and better stress behavior under load compared to the threaded parts known in WO 2013 / 092234 A1, both the threaded parts of WO 2015 / 158805 A1 and those according to WO 2013 / 092234 A1 result in significant material loss because both methods provide a large number of runners. Furthermore, despite the improved shrinkage behavior, the threaded part of WO 2015 / 158805 A1 tends to undergo non-circular deformation, causing the threaded part to continue to have relatively large manufacturing tolerances.

[0007] Furthermore, threaded components known in the prior art typically have a recessed groove with a reduced diameter, for example, in arrangements of sealing elements. This groove creates a weak point, particularly between the drive profile and the threaded section. When the threaded component is tightened to the torque required for self-holding and sealing, it may tear due to insufficient torque resistance generated at the weak point, especially in the weak point region. Since the thread size designed for the reaction element corresponding to the threaded component is usually specified, it is generally not possible to enlarge the cross-section in the weak point region. Moreover, after tightening the connection with sufficient torque, the relaxation of the plastic material can lead to unintentional loosening of the connection. Summary of the Invention

[0008] The purpose of this invention is to provide a threaded component that avoids the known disadvantages of the prior art, particularly having high torque and low manufacturing tolerances, as well as a method for manufacturing such a threaded component.

[0009] According to the invention, the objective is achieved by the following features: a threaded part (1) having an annular cross-section, the threaded part having a hollow cylindrical matrix at least partially injection-molded from a plasticized polymer material (2) containing fibers, wherein the matrix has at least one internal or external thread (4) and an internal channel (6) for arranging or guiding a pipeline system element (8) in the insertion direction (E), wherein the internal channel (6) is configured with at least one sealing section (10) for arranging a peripheral seal for sealing between the internal channel (6) and the pipeline system element (8) or at least one support section (12) for supporting and / or guiding the pipeline system element (8) or at least one retaining section (14) for directly or indirectly locking the pipeline system element (8), wherein an insert sleeve is arranged coaxially with the internal channel in the matrix and is at least partially encapsulated by the polymer material, such that the insert sleeve is at least partially radially toward the internal channel and radially away from the internal channel surrounded by the polymer material.

[0010] The features of the invention can provide threaded parts with low manufacturing costs and optimized characteristics to meet the requirements of transferable torque and roundness by means of an encapsulated insert sleeve.

[0011] Furthermore, the threaded part according to the invention exhibits reduced creep behavior. Advantageously, the threaded part thereby reduces preload loss compared to known injection-molded threaded parts, because in the critical cross-section of the threaded part, particularly in the recessed area of ​​the internal channel, the axial preload is received and maintained by the insert sleeve.

[0012] Furthermore, the use of insert sleeves prevents symmetrical fiber alignment, where the insert sleeve structure enables uniform fiber mixing and fiber orientation within the component during matrix injection molding. Therefore, fiber orientation, which is advantageous under load conditions, is asymmetrical throughout the matrix. In particular, this improves the connection and mechanical properties of threaded parts.

[0013] Another advantage of the uniformly and asymmetrically arranged fibers in the matrix is ​​that fewer injection points are required to manufacture the matrix into an injection-molded part compared to existing technologies. In the case of threaded parts in the prior art, multiple injection points are typically required because the fibers tend to align symmetrically in the flow direction as the plasticizer is dispersed in the mold cavity. In the prior art, this effect is prevented by using multiple injection points. In particular, the uniform and asymmetrical arrangement of fibers produced by the insertion sleeve makes it possible to completely injection mold the matrix with only one injection point. This advantageously saves material that would otherwise accumulate as waste in the runner at each injection point. Furthermore, the hot runner system used for injection molding is also suitable for manufacturing threaded parts according to the invention, thus resulting in fewer wastes compared to conventional unheated injection molding systems.

[0014] Specifically, the injection molding of the matrix, at least in part, from a plasticized polymeric material containing fibers means, in the sense of this invention, that the matrix is ​​formed solely from the polymeric material and an encapsulated insert sleeve, and particularly without any other foreign matter, such as threaded bushings / sleeves. The threads are suitably formed from a fiber-containing polymeric material.

[0015] Specifically, the base has an axially extending assembly section and an axially extending threaded section. The base suitably has a load-bearing portion in the assembly section, particularly with external threads on the outer wall of the threaded section. The insert sleeve is advantageously arranged, at least partially, in the assembly section and at least partially in the threaded section. In this way, high torque applied to the load-bearing portion can be advantageously transmitted to the threaded section, especially without the threaded component breaking.

[0016] In this sense, it is advantageous if the insert sleeve is designed and arranged in the polymer material such that it extends over at least all functional sections of the internal channel, if present. The insert sleeve suitably extends, in particular, over at least one sealing section, at least one supporting section, and at least one retaining section.

[0017] Advantageously, the insert sleeve has a circumferentially closed annular profile along the axial direction of the internal channel in a top view. In the case of threaded parts, especially due to the threads, radial pressure acting on the insert sleeve during tightening is effective. The advantageous insert sleeve is particularly suitable due to its properly closed annular profile in order to prevent radial compression or radial expansion.

[0018] In another variation of the invention, the insert sleeve has openings circumferentially distributed in the circumferential wall. It has been shown to be particularly advantageous if the openings occupy at least 30% of the circumferential wall. With the aid of these openings, the insert sleeve is advantageously also encapsulated within the openings by a plasticized polymeric material. Thus, the insert sleeve is advantageously arranged in a form-fitting manner within the polymeric material. In another advantageous aspect, the openings improve the mixing of fiber orientation.

[0019] The appropriate construction of the opening specifies that the wall thickness of the insert sleeve or circumferential wall and / or the size of the opening are greater than or equal to the fiber length of the fibers contained in the polymer material.

[0020] The opening is preferably designed as a circular hole, wherein the diameter of the hole circle is suitably in the range of 1 mm to 3 mm, preferably in the range of 1.5 mm to 2.5 mm.

[0021] According to one embodiment of the insert sleeve, it is designed as a plate, specifically having a hollow cylindrical shape. Advantageously, the insert sleeve can be manufactured inexpensively as a plate and adapted to customized needs such as diameter, wall thickness, and / or opening ratio.

[0022] An alternative embodiment of the insert sleeve specifies that the insert sleeve is designed as a skeletal support structure with a support portion and a crossbeam portion. This also particularly includes a mesh lattice structure. The opening is preferably designed as a polygon surrounded by the support portion and the crossbeam portion and therefore particularly has a corner shape. The insert sleeve constituting the skeletal support structure is also suitably designed as a curved member and bent into a sleeve shape around a central sleeve axis. In particular, the insert sleeve having a central sleeve axis is arranged coaxially with the internal channel 6 in the finished threaded part.

[0023] Preferably, the insert sleeve is formed by a curved member bent into a sleeve around a central sleeve axis. Preferably, two outer edges of this curved member, bent together, engage with each other in a form-fitting manner, each outer edge having a profile for interconnection. This design can be advantageously implemented when the insert sleeve is designed as a plate and when it is designed as a skeletal support structure. In particular, the form-fitting connection of the outer edges creates a closed annular profile, where the outer edges can support each other, thereby particularly preventing radial indentation and / or radial expansion.

[0024] In another variation, as an alternative or supplement to the outer edges being connected by means of the shape of the contour, the two outer edges of the curved component, which are bent together, are connected to each other by means of material fitting, particularly by welding. This effectively prevents the outer edges from accidentally loosening from each other.

[0025] According to another embodiment, the insert sleeve is designed as a curved component, particularly a deep-drawn perforated component, thus eliminating the need for connecting the outer edge.

[0026] In one particular embodiment, the insert sleeve is suitably designed to taper in diameter in the direction of insertion. This tapered insert sleeve results in a more uniform wall thickness along the entire longitudinal axis of the substrate, particularly on the side of the insert sleeve pointing towards the internal channel.

[0027] In another variation of the invention, the insert sleeve is provided with at least two, preferably three or more, bridges distributed around its periphery and particularly pointing toward the internal channel, at least at its axial ends. The total number of bridges is preferably large enough to form an almost closed circle. The bridges suitably improve the arrangement of the insert sleeve in the polymer material. In particular, each bridge, or a portion thereof, protrudes from the polymer material with an end section. The end sections are preferably used for axial and radial positioning and clamping of the insert sleeve within the mold cavity.

[0028] Insert sleeves are particularly advantageous for producing base materials using molds with multi-part cores. If the core parts are arranged axially adjacent to each other relative to the internal channels of the threaded part to be manufactured when the plasticized polymer material is injected into the cavity, the insert sleeve can be safely positioned between a first core part with the smallest diameter and a second core part with a larger diameter.

[0029] When the end section of the bridge in the support section or non-functional section protrudes from the polymer material, it has advantageously proven suitable for the function of each section of the internal channel. The support section or non-functional section of the internal channel is suitably arranged axially adjacent to the sealing section and / or retaining section and is particularly not used to abut against circumferential seals or locking pipeline system components.

[0030] Specifically, in order not to impair the function of the corresponding section of the internal channel and to advantageously optimize the complexity of the mold, at least one axially extending groove is formed in the circumferential surface of the internal channel, wherein one of the bridges protrudes from the bottom of the groove. The bridge preferably has a maximum radial height corresponding to the depth of the groove. In particular, the bridge does not extend into the internal channel in such a way that any piping system components to be arranged and / or locked in the internal channel come into contact with one or more bridge materials.

[0031] In addition to, or as an alternative to, bridges pointing towards the internal channel, a particular variant of the invention provides that at least one bridge is designed to point radially outward from the internal channel. It is also suitable that the bridge is formed to point axially relative to the internal channel. Because the bridge protrudes from the sleeve at an angle and / or perpendicular to the insertion direction on the outside, the contact surfaces with the mold, particularly the slider and core components, are exposed from the polymer material at points different from those of the previously described bridges forming towards the internal channel. This design is particularly suitable for vertical injection molding machines. Production using a vertical injection molding machine has a particular advantage over a horizontal injection molding machine, namely that the insert is not tilted to one side of the mandrel due to gravity. Using a vertical injection molding machine advantageously makes it easier to centrally support the insert.

[0032] According to an advantageous embodiment of the insert sleeve, the outwardly pointing bridge can be supported in the outer slider, and in particular, at least a portion of the slider, which can be axially fixed in the mold during injection molding, points towards the inclined surface in the insertion direction. Furthermore, the axially extending bridge allows the insert sleeve to be positioned very precisely in the mold, as the bridge can preferably be placed on the core component of the mold. For better filling of the matrix with polymer material, an improved variation specifies that the axially extending bridge has rounded end sections.

[0033] According to another variation, the insert sleeve is constructed with at least six, preferably twelve, teeth distributed around its periphery in the assembly section. This is particularly advantageous for torque transmission, especially when the threaded component is designed as a hollow cylindrical screw. In this case, the teeth preferably extend outwards from the end section into the stressed portion. In particular, the insert sleeve utilizes the teeth to form a toothed ring, such that the insert sleeve is surrounded by a polymer material in a form-fitting manner by the teeth to prevent rotation and to protect the threaded component axially from defects, particularly caused by torque applied to the stressed portion.

[0034] To further optimize the transmittable torque and provide protection against tearing under large forces, the end section of the tooth can be widened towards the load-bearing portion, making it trapezoidal in an axial top view relative to the internal channel. This trapezoidal design of the end section specifically results in an undercut pointing towards the internal channel. During the manufacturing process of the threaded part, the polymer material fills the undercut and resists pull-out from the load-bearing portion from the insert sleeve in the manufactured threaded part.

[0035] The teeth of the insert sleeve are suitably adapted to the outer contour of the force-bearing portion. Advantageously, the force-bearing portion has a regularly convex polygonal outer contour, such as the hexagonal shape corresponding to a wrench. In one embodiment, at least one tooth of the insert sleeve is assigned to an inflection point of the polygonal outer contour and preferably extends radially to that assigned inflection point. It has proven particularly advantageous, according to one embodiment, that the end segments of the insert sleeve teeth associated with the inflection point are designed to converge at an angle toward the inflection point. This angle at which the end segments converge preferably corresponds to the interior angle enclosed by the two sides of the polygonal outer contour that converges at the inflection point.

[0036] According to one embodiment of the invention, in a variation of the force-bearing portion having a regularly convex polygonal outer contour, at least one tooth is assigned to one side of the polygonal outer contour. The corresponding tooth suitably extends toward a point on the corresponding side, wherein the point is located at the midpoint of that side. It is also advantageous if the end section of the tooth has an end face extending parallel to the corresponding side. A similarly advantageous embodiment, with inconsistent alignment and positioning deviations of the insert sleeve relative to the outer contour, has the advantage that the insert sleeve does not need to be positioned relative to the outer contour of the threaded part.

[0037] The insert sleeve is preferably made of a metallic material. Aluminum has proven particularly advantageous here because it has a shrinkage rate similar to that of polymeric materials, in which the fiber content, especially the glass fiber content, is approximately greater than or equal to 40% by mass. It is also advantageous that, in a variant, the insert sleeve is made of VA steel, for example, 1.4301 stainless steel according to DIN EN 10088-2:2014-12.

[0038] Alternatively, the insert sleeve can also be made of organic sheet material. This is especially true of laminates composed of fibers, preferably carbon fibers or glass fibers, and plastics, suitably polyamides.

[0039] Suitable for the present invention, the fiber-containing plasticized polymeric material of the matrix preferably has a fiber volume ratio of 2.5% to 75%, particularly 14% to 40%, and / or a fiber mass ratio of 30% to 75%, preferably 50% to 65%.

[0040] Also beneficial for achieving the desired performance, the fibers have a length ranging from 0.1 mm to 10 mm. The fibers are preferably designed as short fibers with a length ranging from 0.2 mm to 0.5 mm and / or long fibers with a length ranging from 1 mm to 10 mm. It is also suitable if the fibers have an average diameter ranging from about 3 μm to 35 μm, preferably from 5 μm to 20 μm. Particularly in the case of threaded parts with an open insert sleeve, the fiber length is preferably smaller or substantially the same, particularly at most equal to the size of the opening, especially the diameter of the bore.

[0041] According to the method of the invention for producing threaded parts according to at least one of the above embodiments of the threaded part, the threaded part is produced using an injection molding method that provides only one injection point for injecting the polymer material. The reduction in the number of necessary injection points reduces the manufacturing workload. Furthermore, the polymer material is uniformly distributed within the matrix. In particular, no seams are formed in the polymer material of the matrix during manufacturing. In the prior art, this type of seam may be caused by the encounter of two polymer materials injected at different points, where the seam typically represents a weak point in the produced threaded part.

[0042] If the injection point is arranged at an angle to the internal channel of the threaded part to be produced, allowing the polymer material to be injected into the closed mold at an angle toward the internal channel, it is also advantageous for production. Angled injection suitably offers the following advantages: more free space is available for the core component in the area of ​​the internal channel formed by the core component that can be inserted perpendicularly in the insertion direction. This embodiment particularly allows the corresponding core component of the mold to be actively cooled by core cooling. Core cooling advantageously increases production speed and extends the mold's lifespan, especially the lifespan of the core component.

[0043] Specifically, a hot runner system for injection molding is used in the manufacturing method of threaded parts. The hot runner system is particularly preferred to be used in conjunction with a core component with core cooling, thereby further improving production. Attached Figure Description

[0044] Further advantageous configurations of the invention can be derived from the following figures.

[0045] In the attached image:

[0046] Figure 1 The longitudinal section of the threaded part, which axially passes through the internal channel of the threaded part, is shown.

[0047] Figure 2 It shows that according to Figure 1 The threaded parts relative to the Figure 1 The rear view in the insertion direction.

[0048] Figure 3 It shows that according to Figure 1 Threaded parts according to Figure 1 Top view in the insertion direction,

[0049] Figure 4 A longitudinal section of an assembly with an internal channel axially passing through a threaded member is shown, comprising pipeline system elements and according to Figure 1 Threaded parts,

[0050] Figure 5 A perspective view of a first embodiment of an insertion sleeve made of sheet metal is shown.

[0051] Figure 6 It shows that according to Figure 5 A top view of the flat side of the undeformed plate of the first embodiment of the insertion sleeve.

[0052] Figure 7 A top view of the flat side of the undeformed plate of the second embodiment of the insert sleeve is shown.

[0053] Figure 8 A top view of the flat side of the undeformed plate of the third embodiment of the insert sleeve is shown, and

[0054] Figure 9 A partially transparent substrate and a substrate made according to... Figure 8 A top view of the threaded part of the insert sleeve formed by the plate in the insertion direction.

[0055] Figure 10 A longitudinal section of a threaded member, illustrating another embodiment of an internal channel axially passing through the threaded member, is shown.

[0056] Figure 11 A perspective view of a tapered embodiment of the insert sleeve is shown.

[0057] Figure 12 It shows that according to Figure 11 A top view of the insertion sleeve along the insertion direction E.

[0058] Figure 13 It shows a portion passing through the mold and placed into the mold according to Figure 11 The longitudinal section of the insertion sleeve,

[0059] Figure 14 It shows that according to Figure 11 Details of a top view of the flat side of the undeformed plate of another embodiment of the insertion sleeve, and

[0060] Figure 15 It shows that according to Figure 11 The details of the top view of the insertion sleeve opposite to the insertion direction E are shown in the various figures of the accompanying drawings. The same parts are always given the same reference numerals. Detailed Implementation

[0061] It should be noted in the following description that the present invention is not limited to the exemplary embodiments and is not limited to all or more features of the described combination of features. Rather, each individual feature of each exemplary embodiment may be separated from all other related features described and may be combined with any features of other embodiments, all of which are meaningful to the subject matter of the present invention.

[0062] Figure 1A threaded component 1 with an annular cross-section is shown. The threaded component 1 is, in particular, a hollow screw or nut. The threaded component 1 has a hollow cylindrical matrix that is at least partially injection molded from a plasticized polymer material 2 containing fibers.

[0063] The polymer material 2 is preferably a resin or a rigid plastic. In particular, the polymer material 2 comprises epoxy resin (EP), unsaturated polyester resin (UP), vinyl ester resin (VE), phenolic resin (PF), diallyl phthalate resin (DAP), methacrylate resin (MMA), polyurethane (PUR), amino resin, melamine resin (MF / MP), or urea resin (UF).

[0064] In a preferred composition, the plasticized polymer material 2 forms a thermoplastic matrix. The polymer material 2 is preferably composed of polyamide (PA), such as polyphthalamide (PPA), polypropylene (PP), polyetheretherketone (PEEK), polyphenylene sulfide (PPS), or polysulfone (PSU), preferably polyphenylene sulfone (PPSU), polyethersulfone (PES), polyetherimide (PEI), polyethylene terephthalate (PET), or polybutylene terephthalate (PBT).

[0065] according to Figure 1 and 4 In the embodiments shown, the base has at least internal and / or external threads 4. In the illustrated embodiment of the threaded component 1, the base has only external threads 4.

[0066] In addition, the substrate has internal channels 6 for arranging and / or guiding through pipeline system components 8. Figure 4 An example of a corresponding component is shown, wherein a conduit system element 8, designed as a plug connector, is arranged in an internal channel 6 as a plug component. The conduit system element 8 is arranged in and / or through the internal channel along the insertion direction E.

[0067] The internal passage 6 is also configured with at least one sealing section 10 for arranging a circumferential seal for sealing between the internal passage 6 and the pipeline system element 8, and / or is configured with at least one support section 12 for supporting and / or guiding the pipeline system element 8, and / or is configured with at least one retaining section 14 for directly or indirectly locking the pipeline system element 8. As an example, each section in... Figure 1 The sections are marked. The precise functions of each section and their layout and design are known in particular from WO2013 / 092234 A1.

[0068] according to Figure 1 and 4In an exemplary embodiment, section 14 is advantageously formed at the end of the internal channel 6 pointing towards the insertion direction E. The insertion direction E, in particular the pipeline system element 8, is introduced into the threaded member 1, according to... Figure 4 In an exemplary embodiment, the orientation is that of being inserted into the threaded member 1. The base has an outer annular flange 16 on its outer wall, particularly in the region of the retaining section 14. In this example, an annular locking cage 18 can be fastened, particularly snapped, to the outer annular flange 16 for indirectly retaining and / or locking the pipeline system element 8. The locking cage 18 advantageously interacts with the pipeline system element 8 such that the pipeline system element 8 can be locked relative to the threaded member 1, particularly in the internal channel 6.

[0069] According to the present invention, the insertion sleeve 20 is arranged coaxially with the internal channel 6 in the base, such as... Figure 1 , 4 As shown in Figures 9 and 10. Insert sleeve 20 in... Figure 5 and 11 The middle section is shown as separate. According to the invention, the insertion sleeve 20 is at least partially encapsulated by the polymer material 2, such that the insertion sleeve 20 is at least partially radially directed toward the inner channel 6 and radially opposed to the inner channel 6 surrounded by the polymer material 2.

[0070] Particularly advantageously, in order to transmit the highest possible torque, the insert sleeve 20 is used, especially according to... Figure 1 , 4 The arrangement of fibers in the matrix of 9 or 10 prevents symmetrical fiber orientation in the plasticized polymer material 2 during production, i.e., during injection molding. Therefore, the fibers in the matrix are mixed together and have asymmetrical fiber orientation in the matrix or polymer material 2.

[0071] The threaded part 1 according to the invention is particularly advantageous in production by means of the insert sleeve 20, making uniform asymmetric fiber orientation possible even in injection molding with only one injection point. In particular, this saves on expensive molds and material waste caused by the complex gating system, which is caused by the polymer substance 2 solidified in the gating system.

[0072] The asymmetric fiber orientation in the matrix is ​​particularly advantageous for the threaded part 1, namely, the threaded part 1 is particularly susceptible to one or more loads acting in a specific direction due to the fiber orientation, thereby avoiding different resistance zones related to the material within the threaded part 1.

[0073] Another advantage of the insert sleeve 20 is that the threaded part 1 has reduced preload loss because the axial preload generated by tightening is additionally received and maintained on the insert sleeve 20 in the critical cross section of the threaded part 1.

[0074] according to Figure 1 , 4 In the exemplary embodiments of 10, the substrate, in an advantageous embodiment, has an axially extending assembly section 22 and an axially extending threaded section 24. The substrate advantageously has threads in the threaded section 24, wherein, in the illustrated embodiment, an external thread 4 is formed on the outer wall of the substrate in the threaded section 24. Alternatively, according to an embodiment not shown, the substrate has internal threads formed in the internal channel 6 and / or formed as a coaxial extension of the internal channel 6. Each section is only... Figure 1 The text is marked for better overview.

[0075] Specifically, the assembly section 22 is used to transmit externally generated torque to the threaded part 1. Therefore, the base preferably has a force-bearing portion in the assembly section 22, which is suitable, for example, for tools, or because the particularly non-slip outer contour 26 is suitable for manual gripping, holding, and rotating by a user.

[0076] In embodiments of the threaded component 1 having an assembly section 22 and a threaded section 24, it proves particularly advantageous if the insert sleeve 20 is arranged at least partially in the assembly section 22 and at least partially in the threaded section 24 within the base. For example, this advantageous embodiment... Figure 1 and 4 As shown in the image.

[0077] In particular, Figure 1 and Figure 10 A suitable embodiment is also shown, in which the insertion sleeve 20 is designed and arranged in the substrate in such a way that the insertion sleeve extends partially over the functional section of the internal channel 6. Figure 1 As illustrated by way of example, the insertion sleeve 20 extends over the first and second sections and the support section 12. According to an advantageous embodiment not shown, the insertion sleeve 20 extends over all functional sections of the internal channel 6, particularly over at least one retaining section 14, at least one sealing section 10, and at least one support section 12.

[0078] The insertion sleeve 20 suitably has a circumferentially closed annular profile in a top view axially toward the internal channel 6, such as... Figure 9 , 11 As shown in the example in 12, the closed annular profile is particularly suitable for withstanding radial forces acting on the insert sleeve 20 or the threaded part 1. In particular, such forces occur in the threaded part 1 when tightened on the thread or in the threaded section 24.

[0079] according to Figures 5 to 8In another embodiment, 11 and 13, the insert sleeve 20 has openings 30 distributed circumferentially in the circumferential wall 28. According to the illustrated embodiment, based on an advantageous design of the insert sleeve 20, the openings 30 have an opening ratio of at least 30% of the circumferential wall 28. The openings 30 are suitably filled by the plasticized polymer material 2 during injection molding, such that the insert sleeve 20 is thereby arranged in a form-fitting manner within the polymer material 2 in the matrix. Another advantage of the openings 30 is that they facilitate the mixing of fibers or fiber orientation during injection molding.

[0080] like Figures 5 to 8 As shown in 11 and 13, preferably, the openings 30 are arranged in rows of openings circumferentially in the insertion sleeve 20, wherein multiple rows of openings are arranged particularly along the axial extension of the insertion sleeve 20. Figures 5 to 8 As shown in 11 and 13, the insertion sleeve 20 suitably has three rows of openings. The openings 30 are preferably staggered from each other, such that the openings 30 of one row of openings are circumferentially staggered relative to the openings 30 of at least one row of axially adjacent openings.

[0081] By using the insert sleeve 20 according to the invention, particularly with the aforementioned opening 30, only one injection point is required for the injection molding of the threaded part 1. The injection point is preferably arranged in the threaded section 24, where the plasticized polymer material 2 can be injected radially or axially relative to the internal channel 6 into the cavity of the mold. The injection point can also be arranged in the assembly section 22. Here, the plasticized polymer material 2 is injected axially relative to the internal channel 6, i.e., particularly perpendicular to the force-bearing portion along the insertion direction E. Another advantageous embodiment provides an injection point such as... Figure 10 As shown, they are arranged at an angle pointing towards the internal passage. Figure 10 In this designation, the injection point or direction of polymer material 2 is marked with A. Advantageously, this allows it to work with needle valves, meaning there is no loss of information regarding the gate channel.

[0082] The suitable construction of the opening 30 specifies that the wall thickness of the insertion sleeve 20 or the circumferential wall 28 and / or the size of the opening 30 are greater than or equal to the fiber length of the fibers contained in the polymer material 2.

[0083] In particular, such as Figures 5 to 8 As shown, the opening 30 is formed as a circular hole. Preferably, the diameter of each hole is in the range of 1 mm to 3 mm, and more preferably in the range of 1.5 mm to 2.5 mm.

[0084] As an alternative to a circular shape, according to an exemplary embodiment not shown, the opening 30 is constructed in the form of an angular, elliptical, or elongated hole.

[0085] According to the variation of threaded part 1, the insertion sleeve 20 is designed as plate 32, for example in Figures 6 to 8 As shown in 11 and 12, it has a particularly hollow cylindrical shape, such as Figure 5 As shown in the diagram, the opening 30 of the insertion sleeve 20 is suitably introduced into the circumferential wall 28 of the plate 32 by cutting or stamping. The insertion sleeve 20 of the plate 32 is specifically designed to taper in diameter towards the insertion direction E. This embodiment is shown as an example. Figures 10 to 13 middle.

[0086] The insert sleeve 20 is particularly advantageous as a stamped bending member, wherein the sheet metal 32, together with the opening 30, is stamped from sheet metal in a single stamping step. The manufacture of the insert sleeve 20 therefore suitably includes at least one stamping step for manufacturing the sheet metal 32 and a forming step for forming the sleeve-shaped geometry.

[0087] According to an advantageous embodiment not shown, the insertion sleeve 20 is designed as a skeletal support structure with a support portion and a crossbeam portion, wherein the opening 30 is designed as a polygon surrounded by the support portion and the crossbeam portion. Specifically, a lattice or mesh structure represents a skeletal support structure with a support portion and a crossbeam portion within the scope of the invention, wherein, for the intended purpose, the skeletal support structure is also made flat in the first-step axis and, in a further step, bent in a sleeve shape around the central sleeve axis to form the insertion sleeve 20. In particular, the insertion sleeve 20 having the central sleeve axis is arranged coaxially with the internal channel 6 in the finished threaded part 1.

[0088] As described above, the insert sleeve 20 is advantageously formed from a bent member bent into a sleeve. This allows the insert sleeve 20 to maintain its sleeve shape even under radially outward or radially inward loads, particularly... Figures 5 to 8 In the first embodiment shown in Figure 11, the two outer edges 36 of the bent component, which are bent together, engage with each other in a form-fit manner, each outer edge having a profile 34 for interconnection. Specifically, Figure 5 and Figure 6 The first advantageous profile 34 is shown and Figure 7 and Figure 8 A second advantageous profile 34 is shown, the type of which depends on the specific application. Furthermore, in the case of a form-fit connection for a gapless joint, these profiles 34 can be wedged or riveted. Here, for example, an improved clamping effect between the profiles 34 can be achieved through material displacement.

[0089] Another advantageous embodiment for maintaining the sleeve shape of the insert sleeve 20 specifies that the two outer edges 36 of the bent component, which are bent together, are connected to each other by means of material bonding, for example, by welding. In particular, the two outer edges 36 may also have the aforementioned profile 34, such that the outer edges 36 are held in an advantageous position for material bonding connection by form-fitting connection.

[0090] According to an advantageous embodiment (not shown), the insert sleeve 20 is designed as a deep-drawn perforated piece. Advantageously, this does not result in any outer edges 36 having to be bent together and connected to each other.

[0091] according to Figure 1 , 4 In a variation, the insert sleeve 20 has at least two, preferably three or more, connecting bridges 38 distributed around its periphery at at least one axial end. The connecting bridges 38 are advantageously designed to point towards the internal channel 6. Preferably, the total number of connecting bridges 36 is large enough to form an almost closed circle.

[0092] In particular, Figure 6 An advantageous plate 32 with an insert sleeve 20 having twenty-four bridges 38 is shown. Suitably, an advantageous plate 32 with an insert sleeve having twelve bridges 38 is shown in... Figure 7 and Figure 8 As shown in the figure. The bridge 38 advantageously improves the arrangement of the insert sleeve 20 in the substrate.

[0093] In particular, such as Figure 2 As shown, at least two, preferably three, bridges 38 protrude from the polymer material 2 with end sections 38a pointing towards the internal channel 6. Suitably, the end sections 38a of the bridges 38 in the support section 12 or the non-functional section of the internal channel 6 protrude from the polymer material 2. These support sections 12 or the non-functional sections of the internal channel 6 are suitably arranged axially adjacent to the sealing section 10 and / or the retaining section 14 and are particularly not used for abutting against circumferential seals or locking pipeline system elements 8. The protruding end sections 38a can be particularly advantageously used in this arrangement during production, especially for axial and radial positioning and clamping of the sleeve 20 within the cavity of the mold.

[0094] The protruding bridge 38 or its end section 38a protrudes specifically into the internal channel 6, which is suitably used to transport fluid. According to a preferred application, the internal channel 6 is supplied with a compressed air braking system via dry air. Therefore, advantageously, for this application, no condensate enters the outlet point of the bridge 38 from the polymer material 2.

[0095] In order to produce threaded part 1, a plasticized polymer material 2 containing fibers is injected into the cavity of the mold through at least one injection port of the mold (not shown), and after curing, it is removed from the mold as threaded part 1.

[0096] The internal channel 6 is preferably formed by inserting a suitable core component into a mold. (Corresponding to...) Figure 1 The threaded part 1 shown is produced in a variant with a mold having a multi-part core made of at least two core components, which are arranged axially adjacent to each other in relation to the internal channel 6 when forming the cavity. Specifically, the multi-part core allows the diameter of the internal channel 6 to vary in various sections, wherein the internal channel 6 has its minimum diameter at the contact point of the core components and the diameter of the internal channel 6 remains constant or increases from the contact point toward the insertion direction E or in the opposite direction to the insertion direction E. Specifically, at least two core components are used, wherein the insert sleeve 20 is supported on the core component 41 by a bridge 38 or pre-tightened between the two core components during injection molding. Figure 1 In an exemplary embodiment, the insertion sleeve 20 is suitably pre-tightened between the two core components by the three end sections 38a of the bridge 38.

[0097] According to one embodiment of the threaded part 1, at least one axially extending groove 40 is formed in the circumferential surface of the inner channel 6, wherein one of the bridges 38 protrudes from the bottom of the groove. Preferably, the corresponding bridge 38 has a maximum radial height corresponding to the depth of the groove 40. In particular, the bridges 38 do not extend into the circularly cross-sectional section of the inner channel 6 such that the pipeline system element 8 to be arranged and / or locked in the inner channel 6 does not come into contact with the material of one or more bridges 38. The groove 40 may suitably be made of at least two core members, wherein the core members are designed to correspond to the bridges 38 at their contact points, such that the bridges 38 are held clamped in the cavity of the mold with their end sections during injection molding. In particular, the groove 40 is represented by a clamping portion formed on at least one core member, which encapsulates during injection molding. This clamping portion suitably has a clamping width corresponding to the width of the groove of the manufactured threaded part and greater than or equal to the width of the bridge 38 plus the distance between the two bridges 38. This embodiment advantageously ensures that at least one clamping width is clamped within the groove 40 as the sum of one or two bridge sections.

[0098] Preferably, the clamping portion is designed as a serrated extension, wherein the bridge 38 is stretched between the serrated extensions of the two core components. This results in the advantage of the core components engaging with each other, allowing the insert sleeve 20 to be pre-positioned and securely held when the mold is closed. The insert sleeve is preferably pre-positioned on the longer core component, which is the one located outside at least two mold jaws when the mold is open.

[0099] According to another variation, which can be used as a supplement to or alternative to the above-described design of the connector 38, at least one connector 38 is designed to point radially outward from the internal channel 6. This embodiment is particularly... Figure 11 and 12 As shown in [the text]. Appropriately and also in [the text]. Figure 11 and Figure 12 As shown, at least one bridge 38 is preferably formed as an alternative or supplementary embodiment axially oriented relative to the internal channel 6. Figure 11 and Figure 12 An advantageous combination is shown, according to which the insertion sleeve 20 has a radially outward-pointing and axially-pointing bridge 38 relative to the inner channel 6. According to an embodiment not shown, the insertion sleeve 20 suitably has a radially outward-pointing bridge 38 relative to the inner channel 6 and also radially outward-pointing from the inner channel 6.

[0100] Figure 11 and Figure 13 A preferred variant of the connector 38, which is axially oriented relative to the internal channel 6, is also shown, according to which the connector 38 has a rounded end 38b for placement on the core component 41 of the mold. In particular, the rounded end section 38b improves the filling of the polymer material 2 into the matrix.

[0101] according to Figure 14 and Figure 15 In the advantageous embodiment shown, the radially outwardly bent bridge 38 is also designed with rounded end sections 38b. The rounded end sections 38b of the axially and / or radially oriented bridge 38 preferably have a large radius or varying radii, resulting in a wide support surface or contact surface with the slider 39 of the mold. This has the advantage of allowing for more uniform tensioning of the bridge 38.

[0102] According to one of these embodiments, the insertion sleeve 20 is supported on the slider 39 of the mold by a bridge 38 bent outward at an angle, such as Figure 13 As shown. Furthermore, as... Figure 13 As shown, the insertion sleeve 20 can be supported on the core component 41 by a bridge 38 extending axially along the insertion direction. In particular, at the contact point between the bridge 38 and the mold, the bridge 38 protrudes from the polymer material.

[0103] According to an advantageous embodiment, the outwardly pointing bridge 38 can be supported in the slider 39. The outwardly pointing bridge 38 can suitably interact with the slider 39, which has an inclined surface 45 that is at least partially pointing in the insertion direction, such that the position of the insert sleeve 20 in the mold is fixed axially and radially during injection molding.

[0104] Figures 10 to 13The injection molding method for the threaded part 1 shown can be basically based on the method for... Figures 1 to 9 The above-described injection molding method is performed, wherein the position of the contact surface between the insert sleeve 20 and the mold changes according to the extension direction of the bridge 38.

[0105] The insert sleeve 20 is advantageously provided with at least six, preferably twelve, teeth 42 distributed around its periphery in the assembly section 22. The teeth 42 here extend suitably outward, at least at the end section 42a, to the force-bearing portion. The teeth 42 cause the torque in the assembly section 22 to be preferably transmitted to the insert sleeve 20, wherein good force transmission to the threaded section 24 is ensured in particular by means of the opening 30.

[0106] The teeth 42 are specifically arranged so that they do not protrude from or form a common surface with the polymer material 2. The teeth 42 are preferably deeply embedded in the polymer material 2, such that they are completely covered by the polymer layer, which is particularly advantageous in preventing water ingress. This embodiment is particularly preferred to prevent frost damage.

[0107] According to a preferred variation of tooth 42, the end section of tooth 42 is designed to be widened towards the force-bearing portion, such that in a top view relative to the axial direction of the internal channel 6, as... Figure 12 As shown, the end section of tooth 42 is trapezoidal. Advantageously, the end section of tooth 42 has an undercut 43 facing the inner channel 6 due to its trapezoidal shape. With the help of the undercut 43, the maximum torque that can be transmitted is improved and tear protection is improved when large forces are applied to the stressed part. In particular, since the polymer material 2 flows around the undercut 43 during the manufacturing process of the threaded part 1, it is advantageous to make the manufactured threaded part 1 more difficult to pull out of the stressed part from the insert sleeve 20 after curing.

[0108] The load-bearing part is appropriately designed with a regularly convex polygonal outer contour 26. For example, according to Figure 3 and Figure 9 In an exemplary embodiment, the force-bearing portion is designed with a hexagonal profile, which is particularly advantageous for torque transmission using the corresponding tool. At least one tooth 42 of the insertion sleeve 20 is preferably assigned to the inflection point 44 of the polygonal outer contour 26 and, according to an advantageous embodiment, extends radially to the inflection point 44 assigned to that outer contour. Figure 9 This possible embodiment is specifically shown in the figure.

[0109] According to another embodiment, tooth 42 does not conform to the outer contour 26 of the force-bearing portion. This has the advantage that the insert sleeve does not need to be positioned and oriented relative to the outer contour 26 of the threaded part 1. Specifically, as... Figure 6 and Figure 7 The embodiments of the undeformed plate 32 shown are suitable for this arrangement of the insert sleeve, which is not defined by the outer contour 26, because their uniform tooth shape is suitable for this arrangement.

[0110] Figure 9 Another preferred variation is also shown, in which the end segments 42a of the teeth 42 of the insert sleeve 20 associated with the inflection point 44 are designed to converge at an angle in the direction of the inflection point. It has proven advantageous here that the angle at which the corresponding end segments 42a converge corresponds to the interior angle enclosed by the two sides 46 of the polygonal outer contour 26 that converges at the inflection point 44. In particular, this design allows the corresponding teeth 42 to extend a greater radial distance into the inflection point 44 of the force-bearing portion, thereby better receiving the torque acting on the force-bearing portion.

[0111] Based on this advantage, in an alternative or supplementary provision of the embodiment, in the force-bearing portion of the polygonal outer contour 26 designed to have a regular convex shape, at least one tooth 42 is advantageously assigned to one side 46 of the polygonal outer contour 26. This embodiment is shown in conjunction with the above embodiment. Figure 9 Specifically, the corresponding tooth 42 extends toward a point on the corresponding side 46, wherein the point is located at the middle along the side 46, and the end section 42a of the tooth 42 specifically has an end face 48 extending parallel to the corresponding side 46. Figure 9 As shown, due to its parallel end face 48, the tooth 42 can be as close as possible to one side 46 of the outer contour 26 of the force-bearing part.

[0112] Insertion sleeve 20 is suitably designed and arranged in the base such that the tooth 42 is arranged at least with its end section in the region between the center of the axial range of the assembly section and the upper third of the axial range of the assembly section 22 in the opposite insertion direction E.

[0113] Particularly advantageously, the bridge 38 and / or tooth 42 each have a transition section 50 between the sleeve-shaped base 52 of the insertion sleeve 20 and its corresponding end sections 38a, 42a. This advantageous embodiment... Figure 1 , 4 The teeth are shown in Figure 5. The transition section 50, extending obliquely relative to the base 52 of the insert sleeve 20, forms a first angle with the base 52 and a second angle with the corresponding end sections 38a, 42a. Specifically, the transition section 50 is sized and oriented such that the end sections 38a, 42a extend perpendicularly to the internal channel 6. The 60° angle between the transition section 50 and the base 52 has proven advantageous. The transition section 50 allows the insert sleeve 20 to advantageously accommodate variations in the diameter of the internal channel 6 in the assembly section 22, such as… Figure 1 and 4 As shown.

[0114] As an alternative to forming a transition section 50 with two angles, the transition section 50 can be circular, such as... Figure 1 ,4 As shown in section 5 regarding bridge 38.

[0115] Correspondingly, the pipeline system element 8 can preferably be inserted into and locked within the internal channel 6 along the insertion direction E. This is particularly advantageous for pressure applications, such as compressed air systems, where the formation of controlled leakage paths is beneficial. To form these paths, axially extending recesses 54 are arranged in the circumferential surface of the internal channel 6. This advantageous design of the recesses 54 forming the leakage paths is particularly evident in… Figure 1 and Figure 3 In the middle. If the piping system is not properly assembled or the pressure is too high, a leak path allows fluid to escape in a controlled manner that is visually and / or audibly perceptible.

[0116] To achieve the above design, it proves advantageous if the insert sleeve 20 is made of a metallic material, particularly VA steel, aluminum, or an organic sheet. The organic sheet is suitably made, especially, of a laminate composed of fibers, preferably carbon fibers or glass fibers, and plastics, suitably polyamides. These materials suitably provide excellent protection against thickening caused by corrosion, which could lead to the threaded part 1 bursting. This protection is particularly advantageous because the (plasticized) polymeric material 2 can have a small proportion of moisture.

[0117] The fiber-containing plasticized polymer material 2 of the matrix preferably has a fiber volume ratio of 2.5% to 75%, particularly 14% to 40%, and / or a fiber mass ratio of 30% to 75%, preferably 50% to 65%. These mass or volume ratios are particularly advantageous for the stability of the threaded part 1.

[0118] In advantageous embodiments, if the fiber length is in the range of 0.1 mm to 10 mm, preferably the fiber is designed as short fibers with a length of 0.2 mm to 0.5 mm or long fibers with a length of 1 mm to 10 mm, and / or the average fiber diameter is in the range of about 3 μm to 35 μm, preferably in the range of 5 μm to 20 μm, it is also advantageous for the stability of the threaded part 1. Especially in the case of the threaded part 1 having an insertion sleeve 20 with an opening 30, the fiber length is preferably smaller or substantially the same, particularly at most equal to the size of the opening 30, particularly the diameter of the hole circle.

[0119] Amorphous fibers such as glass fibers, anisotropic fibers such as carbon fibers, and / or aramid fibers can be advantageously used as fibers in polymeric material 2.

[0120] According to the method of the invention for producing at least one of the above embodiments of the threaded part 1, the threaded part 1 is produced using an injection molding method that provides only one injection point for injecting the polymer material 2.

[0121] If the injection point is arranged at an angle to the internal channel of the threaded part to be produced, so that the polymer material is injected into the closed mold at an angle toward the internal channel, it is also advantageous for production. Angled injection suitably has the following advantages: more free space is available for the core component in the area of ​​the internal channel formed by the core component that can be inserted perpendicularly along the insertion direction. This embodiment, in particular, allows the corresponding core component of the mold to be actively cooled by core cooling. Core cooling advantageously increases production speed and extends the service life of the mold, especially the service life of the core component. The injection point and injection direction of the polymer material 2 are in... Figure 10 It is marked with an arrow A.

[0122] In particular, hot runner systems used in injection molding are used in methods for manufacturing threaded parts, and their combination with core components with core cooling results in particularly efficient production.

[0123] This invention is not limited to the exemplary embodiments shown and described, but also includes all embodiments that have the same effect within the meaning of this invention. It is explicitly emphasized that the exemplary embodiments are not limited to all combined features; rather, each individual sub-feature may also be inventive independently of all other sub-features.

[0124] List of reference numerals

[0125] 1. Threaded parts

[0126] 2. Polymer substances

[0127] 4 External threads

[0128] 6. Internal passageway

[0129] 8 Piping system components

[0130] 10 Sealed Section

[0131] 12 Support Sections

[0132] 14. Maintain Section

[0133] 16. External annular flange

[0134] 18 Locking Cage

[0135] 20 Insert sleeve

[0136] 22 Assembly Section

[0137] 24 Threaded Section

[0138] 26 Outer contour

[0139] 28 Zhou Xiangbi

[0140] 30 Opening

[0141] 32 pieces

[0142] 34 Outline

[0143] 36 Outer edge

[0144] 38. Connecting bridge

[0145] 38a End section of the bridge

[0146] 38b The rounded end section of the bridge

[0147] 39. Slider of the mold

[0148] 40 grooves

[0149] 41-core components

[0150] 42 teeth

[0151] 42a tooth end section

[0152] 43. Bottom cut

[0153] 44 Inflection Point

[0154] 45 bevel

[0155] 46-sided profile

[0156] 48 end face

[0157] 50 Transition Section

[0158] 52 Insert sleeve-shaped base

[0159] 54 recess

[0160] E Insertion direction

[0161] Injection direction A

Claims

1. A threaded component (1) having an annular cross-section, the threaded component having a hollow cylindrical matrix at least partially injection-molded from a plasticized polymer material (2) containing fibers, wherein the matrix has at least one internal or external thread (4) and an internal channel (6) for arranging or guiding a pipeline system element (8) in an insertion direction (E), wherein the internal channel (6) is configured with at least one sealing section (10) for arranging a peripheral seal for sealing between the internal channel (6) and the pipeline system element (8), or at least one support section (12) for supporting and / or guiding the pipeline system element (8), or at least one retaining section (14) for directly or indirectly locking the pipeline system element (8). Its features are, An insertion sleeve (20) is arranged coaxially with the internal channel (6) in the matrix. The insertion sleeve is at least partially encapsulated by a polymer material (2) such that the insertion sleeve (20) is at least partially radially toward the internal channel (6) and radially away from the internal channel (6) surrounded by the polymer material (2). The insertion sleeve (20) forms at least two bridges (38) distributed on the periphery of the insertion sleeve (20) at least at its axial end.

2. The threaded component (1) according to claim 1, Its features are, The base has an axially extending assembly section (22) and an axially extending threaded section (24), wherein the base has a force-bearing portion in the assembly section (22) and an external thread (4) on the outer wall of the threaded section (24), wherein an insertion sleeve (20) in the base is at least partially arranged in the assembly section (22) and at least partially arranged in the threaded section (24).

3. A threaded component (1) having an annular cross-section, the threaded component having a hollow cylindrical matrix at least partially injection-molded from a plasticized polymer material (2) containing fibers, wherein the matrix has at least one internal or external thread (4) and an internal channel (6) for arranging or guiding a pipeline system element (8) in the insertion direction (E), wherein the internal channel (6) is configured with at least one sealing section (10) for arranging a peripheral seal for sealing between the internal channel (6) and the pipeline system element (8), or at least one support section (12) for supporting and / or guiding the pipeline system element (8), or at least one retaining section (14) for directly or indirectly locking the pipeline system element (8). Its features are, An insertion sleeve (20) is arranged coaxially with the internal channel (6) in the matrix. The insertion sleeve is at least partially encapsulated by a polymer material (2), such that the insertion sleeve (20) is at least partially radially directed toward the internal channel (6) and radially opposed to the internal channel (6) and surrounded by the polymer material (2). The substrate has an axially extending assembly section (22) and an axially extending threaded section (24), wherein the substrate has a force-bearing portion in the assembly section (22) and an external thread (4) on the outer wall of the threaded section (24), wherein an insertion sleeve (20) in the substrate is at least partially arranged in the assembly section (22) and at least partially arranged in the threaded section (24). The insertion sleeve (20) is provided with at least six teeth (42) distributed around the periphery of the insertion sleeve (20) in the assembly area, the teeth extending outward at least at the end sections into the force-bearing portion.

4. The threaded part (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) has a circumferentially closed annular profile in an axial top view relative to the inner channel (6).

5. The threaded part (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) has circumferentially distributed openings (30) on the circumferential wall (28).

6. The threaded part (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) is designed as a plate (32) with a hollow cylindrical shape.

7. The threaded part (1) according to claim 5, Its features are, The insertion sleeve (20) is designed as a skeletal support structure with a support portion and a crossbeam portion, wherein the opening (30) is designed as a polygon surrounded by the support portion and the crossbeam portion.

8. The threaded part (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) is composed of a curved component bent into a sleeve, and the two outer edges (36) of the curved component, which are bent together, engage with each other in a form-fitting manner, the outer edges having contours (34) for interconnection.

9. The threaded part (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) is composed of a bent component that is bent into a sleeve, wherein the two outer edges (36) of the bent component that are bent together are connected to each other in a material-fitting manner.

10. The threaded part (1) according to claim 9, wherein, The two outer edges (36) of the curved component, which are bent together, are connected to each other by welding.

11. The threaded part (1) according to claim 1 or 3, wherein, The threaded part (1) is a hollow screw or nut.

12. The threaded component (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) is tapered in diameter and points in the insertion direction (E).

13. The threaded component (1) according to claim 1, characterized in that, The insertion sleeve (20) forms three or more bridges (38) distributed around the periphery of the insertion sleeve (20).

14. The threaded component (1) according to claim 1, Its features are, At least one bridge (38) is directed to the internal channel (6) configuration.

15. The threaded component (1) according to claim 1, Its features are, All bridges (38) point to the internal channel (6) structure.

16. The threaded part (1) according to claim 14, Its features are, At least two bridges (38) protrude from the polymer material (2) in the support section (12) or the non-functional section of the internal channel (6) through end sections pointing to the internal channel (6), wherein the support section (12) or the non-functional section of the internal channel (6) is arranged axially adjacent to the sealing section (10) and / or the retaining section (14) and is not used to abut against the circumferential seal or lock the pipeline system element (8).

17. The threaded part (1) according to claim 16, Its features are, At least one axially extending groove (40) is formed in the circumferential surface of the inner channel (6), wherein one of the bridges (38) protrudes from the bottom of the groove, wherein the bridge (38) has a maximum radial height corresponding to the depth of the groove (40).

18. The threaded component (1) according to claim 1, Its features are, At least one bridge (38) is formed radially outward from the internal channel (6).

19. The threaded part (1) according to claim 1, Its features are, At least one bridge (38) is configured to be axially oriented relative to the internal channel (6).

20. The threaded component (1) according to claim 3, Its features are, The insertion sleeve (20) is provided with twelve teeth (42) distributed around the periphery of the insertion sleeve (20) in the assembly area, the teeth extending outward at least at the end sections into the force-bearing part.

21. The threaded component (1) according to claim 3, Its features are, The end of the tooth (42) pointing towards the force-bearing part is widened in such a way that, in an axial top view relative to the inner channel (6), the end section of the tooth (42) is constructed in a trapezoidal shape, such that the end section of the tooth (42) has an undercut (43) towards the inner channel (6).

22. The threaded component (1) according to claim 21, Its features are, The force-bearing part is designed to have a regular convex polygonal outer contour (26), wherein at least one tooth (42) of the insertion sleeve (20) is assigned to the inflection point (44) of the polygonal outer contour (26) and extends radially to the assigned inflection point (44).

23. The threaded part (1) according to claim 22, Its features are, The end section of the teeth (42) of the insert sleeve (20) with the inflection point (44) is formed to converge at an angle toward the inflection point, wherein the angle corresponds to the interior angle of the polygonal outer contour (26) formed by the two sides (46) where the inflection point (44) converges.

24. The threaded part (1) according to claim 3 or 21, Its features are, The force-bearing part is designed to have a regular convex polygonal outer contour (26), wherein at least one tooth (42) is assigned to one side (46) of the polygonal outer contour (26), wherein the corresponding tooth (42) extends toward a point on the corresponding side (46), which is arranged in the middle of the side (46).

25. The threaded part (1) according to claim 24, Its features are, The end section of the tooth (42) has an end face (48) extending parallel to the corresponding side (46).

26. The threaded part (1) according to claim 1 or 3, Its features are, Each of the bridges (38) and / or teeth (42) has a transition section (50) between the sleeve-shaped base (52) of the insert sleeve (20) and its corresponding end section, wherein the transition section (50) extends at an angle to the base (52) of the insert sleeve (20) to form a first angle with the base (52) of the insert sleeve (20) and a second angle with the end section, and wherein the end section extends perpendicular to the internal channel (6).

27. The threaded part (1) according to claim 1 or 3, Its features are, The pipeline system element (8) is capable of being inserted into and locked in the internal channel (6) in the insertion direction (E), wherein an axially extending recess (54) is arranged in the circumferential surface of the internal channel (6), the recess extending at least partially in the sealing section (10) and the section of the internal channel (6) adjacent to the sealing section (10) in the opposite insertion direction (E).

28. The threaded part (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) is made of metal.

29. The threaded part (1) according to claim 28, Its features are, The insertion sleeve (20) is made of VA steel or aluminum.

30. The threaded part (1) according to claim 1 or 3, Its features are, The insertion sleeve (20) is made of organic sheet material.

31. The threaded part (1) according to claim 30, Its features are, The insertion sleeve (20) is made of a laminate of fiber and plastic.

32. The threaded component (1) according to claim 31, Its features are, The insertion sleeve (20) is made of a laminate of carbon fiber or glass fiber and polyamide.

33. The threaded component (1) according to claim 1 or 3, Its features are, The fiber-containing plasticized polymer material (2) of the matrix has a fiber volume ratio of 2.5% to 75% and / or a fiber mass ratio of 30% to 75%.

34. The threaded part (1) according to claim 33, Its features are, The fiber-containing plasticized polymer material (2) of the matrix has a fiber volume ratio of 14% to 40% and / or a fiber mass ratio of 50% to 65%.

35. The threaded component (1) according to claim 1 or 3, Its features are, The fiber has a length of 0.1 mm to 10 mm, and / or the fiber has an average diameter in the range of 3 μm to 35 μm.

36. The threaded part (1) according to claim 35, Its features are, The fibers are designed as short fibers with a length of 0.2 mm to 0.5 mm or long fibers with a length of 1 mm to 10 mm, and / or the fibers have an average diameter in the range of 5 μm to 20 μm.

37. A method for manufacturing a threaded part (1) having the features described in claim 1 or 3, Its features are, The threaded part (1) is produced using an injection molding method, which has only one injection point for injecting polymer material.

38. The method according to claim 37, Its features are, The injection points of the internal channel (6) of the threaded part (1) to be produced are arranged at a certain angle, so that the polymer material is injected into the closed mold at a certain angle pointing to the internal channel (6) and the core component of the mold forming the internal channel (6) is actively cooled by core cooling.

39. The method according to claim 37, Its features are, The threaded part (1) is injection molded using a hot runner system.

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