Oil and acid resistant cable cold sealing process

Abstract

The present application relates to a kind of oil-resistant acid-resistant cable cold sealing process, by first annular sealing ring installation step, second annular sealing ring installation step and first extrusion piece installation step make first threaded tube extrude first annular sealing ring, make the first annular extrusion plate on first extrusion piece extrude second annular sealing ring.By waterproof sealant filling step, waterproof sealant is filled between first threaded tube and wire core, and first threaded tube and wire core are closed.By third annular sealing ring installation step, fourth annular sealing ring installation step and second extrusion piece installation step make second threaded tube extrude third annular sealing ring, make the second annular extrusion plate on second extrusion piece extrude fourth annular sealing ring in combination with first annular extrusion plate.The sealing effect of the above-mentioned oil-resistant acid-resistant cable cold sealing process for cable joint is excellent, and the high waterproof performance of oil-resistant acid-resistant cable is met.

Description

Technical Field

[0001] This invention relates to the field of cable sealing, and in particular to a cold sealing process for oil- and acid-resistant cables. Background Technology

[0002] A cable is a device for transmitting electrical energy or signals, typically composed of several or groups of conductors. Types of cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, and aluminum alloy cables. Cable sealing involves sealing the cable joints to prevent water ingress, leakage, and other safety hazards. Oil- and acid-resistant cables, with their high chemical stability, require even more stringent waterproofing techniques.

[0003] However, traditional cable sealing processes, such as the technical solution disclosed in the patent application number CN200810036129.2 entitled "Cable Cold Sealing Process", are not effective in sealing cable joints and cannot meet the waterproof performance requirements of oil- and acid-resistant cables. Summary of the Invention

[0004] Therefore, it is necessary to provide a cold sealing process for oil- and acid-resistant cables to address the technical problem that traditional cable sealing processes are not effective at sealing cable joints and cannot meet the waterproof performance requirements of oil- and acid-resistant cables.

[0005] A cold sealing process for oil- and acid-resistant cables, the process comprising the following steps:

[0006] Cable cutting steps: Cut off one end of the cable except for the wire core, so that the wire core is exposed;

[0007] Cable hollowing-out steps: Hollow out the structure between the wire core and the protective sheath at the cut end of the cable;

[0008] Tapping steps: Create internal threads on the inner wall of the protective sleeve of the hollowed-out part of the cable to form a threaded cavity;

[0009] First annular sealing ring installation steps: Slide the first annular sealing ring onto the wire core and insert it into the threaded cavity. Attach one side of the first annular sealing ring to the inner wall of the threaded cavity using sealing adhesive.

[0010] Steps for installing the second annular sealing ring: Attach the second annular sealing ring to one end of the protective sleeve using sealing adhesive;

[0011] First extrusion component placement steps: Screw the first threaded tube on the first extrusion component into the threaded cavity, so that the first threaded tube extrudes the first annular sealing ring; so that the first annular extrusion plate on the first extrusion component extrudes the second annular sealing ring;

[0012] Waterproof sealant filling steps: Fill the space between the first threaded tube and the wire core with waterproof sealant;

[0013] The third annular sealing ring installation steps are as follows: the third annular sealing ring is fitted onto the wire core and inserted into the bottom of the threaded groove opened in the first threaded tube, and one side of the third annular sealing ring is glued to the bottom of the threaded groove with sealing adhesive.

[0014] The fourth annular sealing ring installation steps are as follows: The fourth annular sealing ring is bonded to the side of the first annular extrusion plate that faces away from the second annular sealing ring using sealing adhesive;

[0015] The second extrusion component placement steps are as follows: the second threaded tube on the second extrusion component is screwed into the threaded groove, and the second threaded tube extrudes the third annular sealing ring; the second annular extrusion plate on the second extrusion component, in conjunction with the first annular extrusion plate, extrudes the fourth annular sealing ring.

[0016] In one embodiment, the first annular sealing ring is a soft rubber pad.

[0017] In one embodiment, the first annular sealing ring is a soft silicone pad.

[0018] In one embodiment, the second annular sealing ring is a soft rubber gasket.

[0019] In one embodiment, the second annular sealing ring is a soft silicone pad.

[0020] In one embodiment, the third annular sealing ring is a soft rubber gasket.

[0021] In one embodiment, the third annular sealing ring is a soft silicone pad.

[0022] In one embodiment, the fourth annular sealing ring is a soft rubber gasket.

[0023] In one embodiment, the fourth annular sealing ring is a soft silicone pad.

[0024] The above-described cold-sealing process for oil- and acid-resistant cables is concise, sophisticated, and easy to control, with each step requiring meticulous attention. The cable cutting step exposes the core portion of the cable at one end. The cable hollowing step removes the cut end of the cable. The tapping step creates internal threads on the inner wall of the protective sleeve, forming a threaded cavity. The first annular sealing ring placement step, the second annular sealing ring placement step, and the first extrusion piece placement step compress the first threaded tube against the first annular sealing ring, and the first annular extrusion plate on the first extrusion piece compresses the second annular sealing ring, thus sealing both the inside and outside of the first threaded tube. The waterproof sealant filling step fills the space between the first threaded tube and the core, sealing this area. The third annular sealing ring placement step, the fourth annular sealing ring placement step, and the second extrusion piece placement step compress the second threaded tube against the third annular sealing ring, and the second annular extrusion plate on the second extrusion piece, in conjunction with the first annular extrusion plate, compresses the fourth annular sealing ring, thus sealing both the inside and outside of the second threaded tube. The above-mentioned cold sealing process for oil- and acid-resistant cables provides excellent sealing at cable joints, thus meeting the high waterproof performance requirements of oil- and acid-resistant cables. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the cold sealing process for oil- and acid-resistant cables in one embodiment;

[0026] Figure 2 This is a schematic diagram of the structure of an oil- and acid-resistant cable after cold sealing in one embodiment;

[0027] Figure 3 for Figure 2 A partially enlarged structural diagram of the oil- and acid-resistant cable after cold sealing in the embodiment;

[0028] Figure 4 for Figure 3 A partial structural diagram of the oil- and acid-resistant cable after cold sealing in the embodiment;

[0029] Figure 5 This is an exploded view of the various components used in the cold sealing of an oil- and acid-resistant cable in one embodiment. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Please refer to the following: Figures 1 to 4 It should be noted that the accessories used in implementing the cold sealing process for oil- and acid-resistant cables include a first annular sealing ring 200, a second annular sealing ring 300, a third annular sealing ring 400, a fourth annular sealing ring 500, a first extrusion piece 600, and a second extrusion piece 700.

[0036] The first extrusion member 600 includes a first threaded tube 610 and a first annular extrusion plate 620. The first annular extrusion plate 620 is sleeved on one end of the first threaded tube 610 and connected to the first threaded tube 610. The inner diameter of the first annular extrusion plate 620 is the same as the outer diameter of the first threaded tube 610. In this embodiment, the first annular extrusion plate 620 and the first threaded tube 610 are integrally formed. A threaded groove 101 is formed at one end of the first threaded tube 610 near the first annular extrusion plate 620. An insertion hole 102 is formed in the middle area of ​​the bottom of the threaded groove 101. The insertion hole 102 is adapted to the wire core 810, and the wire core 810 passes through the insertion hole 102.

[0037] The second extrusion member 700 includes a second threaded tube 710 and a second annular extrusion plate 720. The second annular extrusion plate 720 is sleeved on one end of the second threaded tube 710 and connected to the second threaded tube 710. The inner diameter of the second annular extrusion plate 720 is the same as the outer diameter of the second threaded tube 710. In this embodiment, the second annular extrusion plate 720 and the second threaded tube 710 are integrally formed.

[0038] Please see Figure 5 This invention provides a cold sealing process for oil- and acid-resistant cables, the process comprising the following steps:

[0039] Step 101: Cable cutting step: Cut off one end of the cable except for the part of the wire core 810, so that the part of the wire core 810 is exposed.

[0040] Specifically, one end of the cable is cut off, excluding the portion of core 810, so that core 810 is exposed. In other words, the portion of one end of the cable that wraps around core 810 is cut off, leaving only core 810.

[0041] Step 102: Cable hollowing-out step: Hollow out the structure between the wire core 810 and the protective sheath 820 at the cut end of the cable.

[0042] Specifically, the structure between the wire core 810 and the protective sheath 820 at the cut end of the cable is hollowed out. In other words, the cut end is hollowed out, leaving only the protective sheath 820 and the wire core 810.

[0043] Step 103: Tapping step: Make internal threads on the inner wall of the protective sleeve 820 of the hollowed-out part of the cable to form a threaded cavity 801.

[0044] A tapping machine is used to tap the inner wall of the protective sleeve 820 of the hollowed-out part of the cable, so that internal threads are opened on the inner wall of the protective sleeve 820 to form a threaded cavity 801.

[0045] Step 104: First annular sealing ring placement steps: Place the first annular sealing ring 200 on the core 810 and insert it into the threaded cavity 801. Adhere one side of the first annular sealing ring 200 to the inner wall of the threaded cavity 801 with sealing adhesive.

[0046] In this embodiment, the first annular sealing ring 200 is a soft rubber gasket. In another embodiment, the first annular sealing ring 200 is a soft silicone gasket. Both the threaded cavity 801 and the wire core 810 are adapted to the first annular sealing ring 200.

[0047] Specifically, the first annular sealing ring 200 is fitted onto the core 810 and inserted into the threaded cavity 801, and one side of the first annular sealing ring 200 is bonded to the inner wall of the threaded cavity 801 with sealing adhesive.

[0048] Step 105: Installation of the second annular sealing ring: Attach the second annular sealing ring 300 to one end of the protective sleeve 820 using sealing adhesive.

[0049] In this embodiment, the second annular sealing ring 300 is a soft rubber gasket. In another embodiment, the second annular sealing ring 300 is a soft silicone gasket. The inner diameter of the second annular sealing ring 300 is the same as the inner diameter of the protective sleeve 820, and the outer diameter of the second annular sealing ring 300 is the same as the outer diameter of the protective sleeve 820.

[0050] Specifically, the second annular sealing ring 300 is bonded to one end of the protective sleeve 820 using sealing adhesive.

[0051] Step 106: First extrusion component placement step: Screw the first threaded tube 610 on the first extrusion component 600 into the threaded cavity 801, so that the first threaded tube 610 extrudes the first annular sealing ring 200. This causes the first annular extrusion plate 620 on the first extrusion component 600 to extrude the second annular sealing ring 300.

[0052] The first threaded tube 610 is adapted to the threaded cavity 801, and the first threaded tube 610 can be inserted into the threaded cavity 801 and screwed together with the protective sleeve 820. The outer diameter of the first annular extrusion plate 620 on the first extrusion member 600 is the same as the outer diameter of the second annular sealing ring 300.

[0053] Specifically, the first threaded tube 610 is screwed into the threaded cavity 801, causing the first threaded tube 610 to compress the first annular sealing ring 200. This causes the first annular compression plate 620 to compress the second annular sealing ring 300. In other words, sealing is performed both inside and outside the first threaded tube 610.

[0054] Step 107: Waterproof sealant filling step: Fill the waterproof sealant between the first threaded tube 610 and the wire core 810.

[0055] Specifically, waterproof sealant is filled between the insertion hole 102 and the wire core 810 to seal the first threaded tube 610 and the wire core 810.

[0056] Step 108: Installation of the third annular sealing ring: The third annular sealing ring 400 is fitted onto the core 810 and inserted into the bottom of the threaded groove 101 opened in the first threaded tube 610. One side of the third annular sealing ring 400 is bonded to the bottom of the threaded groove 101 with sealing adhesive.

[0057] In this embodiment, the third annular sealing ring 400 is a soft rubber gasket. In another embodiment, the third annular sealing ring 400 is a soft silicone gasket. The third annular sealing ring 400 is adapted to the threaded groove 101 and can be inserted into the threaded groove 101. The third annular sealing ring 400 is adapted to the wire core 810 and can be sleeved on the wire core 810.

[0058] Specifically, the third annular sealing ring 400 is fitted onto the core 810 and inserted into the bottom of the threaded groove 101 opened in the first threaded tube 610, and one side of the third annular sealing ring 400 is bonded to the bottom of the threaded groove 101 with sealing adhesive.

[0059] Step 109: Placement of the fourth annular sealing ring: Adhere the fourth annular sealing ring 500 to the side of the first annular extrusion plate 620 facing away from the second annular sealing ring 300 using sealing adhesive.

[0060] In this embodiment, the fourth annular sealing ring 500 is a soft rubber gasket. In another embodiment, the fourth annular sealing ring 500 is a soft silicone gasket. The outer diameter of the fourth annular sealing ring 500 is the same as the outer diameter of the first annular extrusion plate 620, and the inner diameter of the fourth annular sealing ring 500 is the same as the inner diameter of the first annular extrusion plate 620.

[0061] Step 110: Second extrusion component placement step: Screw the second threaded tube 710 on the second extrusion component 700 into the threaded groove 101, so that the second threaded tube 710 extrudes the third annular sealing ring 400. This causes the second annular extrusion plate 720 on the second extrusion component 700 to combine with the first annular extrusion plate 620 to extrude the fourth annular sealing ring 500.

[0062] The outer diameter of the second annular extrusion plate 720 is the same as the outer diameter of the fourth annular sealing ring 500, and the inner diameter of the second annular extrusion plate 720 is the same as the inner diameter of the fourth annular sealing ring 500. The second threaded tube 710 is adapted to the threaded groove 101, and the second threaded tube 710 can be inserted into the threaded groove 101 and screwed to the first threaded tube 610.

[0063] Specifically, the second threaded tube 710 on the second extruder 700 is screwed into the threaded groove 101, causing the second threaded tube 710 to compress the third annular sealing ring 400. This causes the second annular extrusion plate 720 on the second extruder 700, in conjunction with the first annular extrusion plate 620, to compress the fourth annular sealing ring 500. Thus, sealing is achieved both inside and outside the second threaded tube 710.

[0064] The above-described cold-sealing process for oil- and acid-resistant cables is concise, sophisticated, and easy to control, with each step meticulously executed. The cable cutting step exposes the core 810 at one end of the cable. The cable hollowing step removes the cut end of the cable. The tapping step creates internal threads on the inner wall of the protective sleeve 820, forming a threaded cavity 801. The first annular sealing ring placement step, the second annular sealing ring placement step, and the first extrusion piece placement step compress the first threaded tube 610 against the first annular sealing ring 200, and the first annular extrusion plate 620 on the first extrusion piece 600 compresses the second annular sealing ring 300, thus sealing both the inside and outside of the first threaded tube 610. The waterproof sealant filling step fills the space between the first threaded tube 610 and the core 810, sealing the space between them. Through the third annular sealing ring placement step, the fourth annular sealing ring placement step, and the second extrusion component placement step, the second threaded tube 710 extrudes the third annular sealing ring 400, causing the second annular extrusion plate 720 on the second extrusion component 700 to combine with the first annular extrusion plate 620 to extrude the fourth annular sealing ring 500, thereby sealing both the inside and outside of the second threaded tube 710. The above-described cold-sealing process for oil- and acid-resistant cables provides excellent sealing at cable joints, meeting the high waterproof performance requirements of oil- and acid-resistant cables.

[0065] To enhance the structural stability of oil- and acid-resistant cables after cold sealing, the sealing adhesive comprises the following components in parts by weight: 20 to 40 parts nitrile rubber, 10 to 20 parts polytetrafluoroethylene, 15 to 35 parts polyurethane, 4 to 8 parts rosin resin, 2 to 3 parts vinyl tributanone oxime silane, 5 to 15 parts alkyl phthalate, 5 to 8 parts polyisobutylene, 6 to 10 parts fumed silica, 2 to 4 parts talc, and 2 to 3 parts dimethyl silicone oil. The sealing adhesive composed of these components exhibits excellent adhesion and good oxidation resistance, thereby improving the structural stability of oil- and acid-resistant cables after cold sealing.

[0066] To enhance the waterproof performance of oil- and acid-resistant cables after cold sealing, the waterproof sealant comprises the following components in parts by weight: 25 to 45 parts epoxy resin, 12 to 22 parts dibutyl phthalate, 14 to 35 parts chloroprene rubber, 1 to 3 parts m-phenylenediamine, 3 to 7 parts terpene resin, 4 to 8 parts maleic anhydride-modified polyethylene, 3 to 6 parts polyether triol, 5 to 10 parts diphenylmethane diisocyanate, and 3 to 7 parts vinylsiloxane. The waterproof sealant composed of these components exhibits good permeability and sealing properties, thereby improving the waterproof performance of oil- and acid-resistant cables after cold sealing.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A cold sealing process for oil- and acid-resistant cables, characterized in that, The process includes the following steps: Cable cutting steps: Cut off one end of the cable except for the wire core, so that the wire core is exposed; Cable hollowing-out steps: Hollow out the structure between the wire core and the protective sheath at the cut end of the cable; Tapping steps: Create internal threads on the inner wall of the protective sleeve of the hollowed-out part of the cable to form a threaded cavity; The first annular sealing ring installation steps are as follows: the first annular sealing ring is fitted onto the wire core and inserted into the threaded cavity, and one side of the first annular sealing ring is bonded to the inner wall of the threaded cavity with sealing adhesive; the sealing adhesive comprises the following components in parts by weight: 20 to 40 parts of nitrile rubber, 10 to 20 parts of polytetrafluoroethylene, 15 to 35 parts of polyurethane, 4 to 8 parts of rosin resin, 2 to 3 parts of vinyltributylone oxime silane, 5 to 15 parts of alkyl phthalate, 5 to 8 parts of polyisobutylene, 6 to 10 parts of fumed silica, 2 to 4 parts of talc, and 2 to 3 parts of dimethyl silicone oil. Steps for installing the second annular sealing ring: Attach the second annular sealing ring to one end of the protective sleeve using sealing adhesive; First extrusion component placement steps: Screw the first threaded tube on the first extrusion component into the threaded cavity, so that the first threaded tube extrudes the first annular sealing ring; so that the first annular extrusion plate on the first extrusion component extrudes the second annular sealing ring; Waterproof sealant filling step: Fill the waterproof sealant between the first threaded tube and the wire core; the waterproof sealant comprises the following components in parts by weight: 25 to 45 parts epoxy resin, 12 to 22 parts dibutyl phthalate, 14 to 35 parts chloroprene rubber, 1 to 3 parts m-phenylenediamine, 3 to 7 parts terpene resin, 4 to 8 parts maleic anhydride modified polyethylene, 3 to 6 parts polyether triol, 5 to 10 parts diphenylmethane diisocyanate, and 3 to 7 parts vinylsiloxane; The steps for installing the third annular sealing ring are as follows: The third annular sealing ring is fitted onto the wire core and inserted into the bottom of the threaded groove opened inside the first threaded tube. One side of the third annular sealing ring is then bonded to the bottom of the threaded groove with sealing adhesive. The fourth annular sealing ring installation steps are as follows: The fourth annular sealing ring is bonded to the side of the first annular extrusion plate that faces away from the second annular sealing ring using sealing adhesive; The second extrusion component placement steps are as follows: the second threaded tube on the second extrusion component is screwed into the threaded groove, and the second threaded tube extrudes the third annular sealing ring; the second annular extrusion plate on the second extrusion component, in conjunction with the first annular extrusion plate, extrudes the fourth annular sealing ring.

2. The process according to claim 1, characterized in that, The first annular sealing ring is a soft rubber gasket.

3. The process according to claim 1, characterized in that, The first annular sealing ring is a soft silicone pad.

4. The process according to claim 1, characterized in that, The second annular sealing ring is a soft rubber gasket.

5. The process according to claim 1, characterized in that, The second annular sealing ring is a soft silicone pad.

6. The process according to claim 1, characterized in that, The third annular sealing ring is a soft rubber gasket.

7. The process according to claim 1, characterized in that, The third annular sealing ring is a soft silicone pad.

8. The process according to claim 1, characterized in that, The fourth annular sealing ring is a soft rubber gasket.

9. The process according to claim 1, characterized in that, The fourth annular sealing ring is a soft silicone pad.

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