A centrifugal casting device for ultra-high temperature alloy parts

Abstract

The invention discloses a centrifugal casting device for ultra-high temperature alloy parts, which relates to the technical field of centrifugal casting, and comprises a conveying mechanism, on which a casting port is provided during casting, and the conveying mechanism can gradually push the liquid casting into the interior of the casting mold; a rotary driving device, as a driving component of the entire device, can simultaneously rotate the mold and a conveying pipeline in the conveying mechanism; in the invention, the rotary conveying pipeline is used to make the casting solution consistent with the rotation speed of the mold during the casting process, effectively avoiding the scouring of the molding sand layer inside the mold by the casting solution, and improving the service life of the mold; at the same time, a pushing component is used to ensure that the volume of the casting solution poured from the pouring port is consistent within a unit time, ensuring that the casting solution is evenly distributed in the mold, and improving the quality of the finished product; when the casting work is completed, the mold will increase the rotation speed to further improve the quality of the final product.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal casting, in particular to a centrifugal casting device for ultra-high temperature alloy parts. Background Art

[0002] Centrifugal casting is the process of injecting molten metal into a high-speed rotating mold, and the metal liquid completes the filling of the mold under the action of centrifugal force. Centrifugal casting is widely used in the casting of cylindrical pipes. In existing centrifugal casting molds, molding sand is used to make the molding cavity of the mold, so as to facilitate the production of workpieces of different sizes. During casting, the mold rotates at a high speed, and then the metal liquid is injected into the interior of the mold using a guide tube, and the metal liquid forms the workpiece under the action of centrifugal force. However, due to the high-speed rotation of the mold, the speed of the metal liquid when it flows out of the guide tube is relatively low, resulting in a large speed difference between the metal liquid and the mold, so that the metal liquid flushes the molding sand layer of the molding cavity in the mold, resulting in the molding sand in the molding cavity being severely damaged after the mold has been used for a period of time, so the mold must be replaced, which leads to a lower service life of the mold.

[0003] At the same time, during the centrifugal casting process, the casting solution rotates in the mold, and the final product is easily uneven in thickness due to uneven casting. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a centrifugal casting device for ultra-high temperature alloy parts, which solves the problem of uneven thickness of the cast products.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a centrifugal casting device for ultra-high temperature alloy parts, comprising a conveying mechanism, the conveying mechanism is provided with a casting port during casting, and the conveying mechanism can also gradually push the liquid casting into the interior of the casting mold;

[0008] A rotary drive device, as a driving member of the entire device, capable of rotating the mold and the conveying pipe in the conveying mechanism at the same time;

[0009] The conveying pipeline is provided with a plurality of delivery ports. Under the action of the rotary drive device, the casting solution in the conveying pipeline will be rotated and thrown out from the delivery ports. At this time, the casting solution will maintain the same rotation speed and rotation direction as the mold.

[0010] The conveying mechanism also includes a pushing member, and the diaphragm in the pushing member will gradually expand to keep the density of the casting solution thrown out at each of the injection ports unchanged.

[0011] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts of the present invention, wherein: the conveying mechanism includes the conveying pipeline, one end of the conveying pipeline is provided with a delivery pipeline, the other end of the conveying pipeline is provided with a docking joint, the other end of the delivery pipeline is provided with the pushing member, the pushing member is placed at one end of a push rod, and the other end of the push rod is connected to the output end of the electric rod through a connecting plate; the electric rod is mounted on a bracket, and a roller is provided on the bracket;

[0012] A storage box is provided on one side of the connecting plate, and the storage box delivers filling liquid into the pushing member through a pump on one side of the storage box and a delivery pipe on the pump.

[0013] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts described in the present invention, the conveying pipeline includes a pipe body, and a plurality of delivery ports are linearly and equidistantly distributed on the pipe body. An internal clamping joint is provided at one end of the pipe body connected to the delivery pipeline, and a through port is provided at the other end of the pipe body.

[0014] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts of the present invention, the delivery pipeline includes a casting port, and an end of the delivery pipeline connected to the conveying pipeline is provided with an external clamping joint.

[0015] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts of the present invention, the butt joint includes a pressing head, the outer side of the pressing head is movably connected to the inner wall of the conveying pipe through a spring, and a clamping rod is provided at the rear end of the pressing head, and the clamping rod is movably connected to the clamping shell through a torsion spring rotating shaft;

[0016] The clamping rod is L-shaped as a whole, with an inclined front end and a conical rear end, and the rear end of the clamping rod passes through a side opening on the clamping shell.

[0017] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts described in the present invention, wherein: the pushing member includes a rotating motor, the rotating motor is connected to the push rod, a screw is provided at the output end of the rotating motor, the other end of the screw is movably connected to the front movable block, a rear movable block is provided on the screw, a diaphragm is provided between the rear movable block and the front movable block, the diaphragm wraps the screw, and the interior of the diaphragm is a closed area; the delivery pipe passes through the rear movable block to deliver filling liquid to the diaphragm.

[0018] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts described in the present invention, the rotary drive device includes a drive motor, a transmission head is provided at the output end of the drive motor, the transmission head transmits power to the driven head through a crawler, the inner side of the driven head is connected to a card slot through a connecting rod, and a card interface is provided inside the card slot.

[0019] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts of the present invention, the material of the diaphragm is a nickel-based alloy.

[0020] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts of the present invention, the diameters of the rear movable block and the front movable block are consistent with the inner diameter of the conveying pipeline.

[0021] As a preferred solution of the centrifugal casting device for ultra-high temperature alloy parts of the present invention, the solution stored in the storage box is insulating oil.

[0022] Beneficial effects of the present invention: The rotating conveying pipe in the present invention makes the casting solution rotate at the same speed as the mold during the casting process, effectively preventing the molding sand layer inside the mold from being eroded by the casting solution, thereby increasing the service life of the mold; at the same time, the pushing member is used to ensure that the volume of the casting solution poured from the pouring port is consistent within a unit time, ensuring that the casting solution is evenly distributed in the mold, thereby improving the quality of the finished product;

[0023] When the casting is complete, the mold is rotated at a higher speed to further improve the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 It is an overall schematic diagram of a centrifugal casting device for ultra-high temperature alloy parts;

[0026] Figure 2 It is a schematic diagram of a driving device of a centrifugal casting device for ultra-high temperature alloy parts;

[0027] Figure 3 It is a schematic diagram of the conveying mechanism of the centrifugal casting device for ultra-high temperature alloy parts;

[0028] Figure 4 It is a schematic diagram of the internal structure of the conveying pipeline of the centrifugal casting device for ultra-high temperature alloy parts;

[0029] Figure 5It is a schematic diagram of the internal structure of a pusher of a centrifugal casting device for ultra-high temperature alloy parts;

[0030] Figure 6 This is a schematic diagram of the internal structure of the butt joint of the centrifugal casting device for ultra-high temperature alloy parts. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1, reference Figure 1 to Figure 6 , which is the first embodiment of the present invention, and provides a centrifugal casting device for ultra-high temperature alloy parts, which includes a conveying mechanism 100, and a casting port 102a is provided on the conveying mechanism 100 during casting, and the conveying mechanism 100 can also gradually push the liquid casting into the interior of the casting mold;

[0035] The rotary drive device 200, as a driving member of the entire device, can simultaneously rotate the mold 300 and the conveying pipe 101 in the conveying mechanism 100;

[0036] The delivery pipe 101 is provided with a plurality of delivery ports 101b. Under the action of the rotation drive device 200, the casting solution in the delivery pipe 101 will be rotated and thrown out from the delivery ports 101b. At this time, the casting solution will maintain the same rotation speed and rotation direction as the mold 300.

[0037] The conveying mechanism 100 further comprises a pushing member 105, and a diaphragm 105d in the pushing member 105 will gradually expand to keep the density of the casting solution thrown out at each injection port 101b unchanged.

[0038] The conveying mechanism 100 includes a conveying pipeline 101, one end of which is provided with a delivery pipeline 102, the other end of which is provided with a docking joint 103, the other end of which is provided with a pushing member 105, the pushing member 105 is placed at one end of a push rod 104, the other end of which is connected to the output end of an electric rod 111 through a connecting plate 112; the electric rod 111 is mounted on a bracket 109, and a roller 110 is provided on the bracket 109;

[0039] Preferably, the moving speed of the output end of the delivery pipeline 101 is a constant value, and the rotation speed of the delivery pipeline 101 is also a constant value.

[0040] A storage box 106 is provided on one side of the connecting plate 112 . The storage box 106 delivers the filling liquid into the pushing member 105 through a pump 107 on one side thereof and a delivery pipe 108 on the pump 107 .

[0041] The delivery pipeline 101 includes a pipe body 101a, on which a plurality of delivery ports 101b are linearly and equidistantly distributed. An end of the pipe body 101a connected to the delivery pipeline 102 is provided with an internal clamping joint 101d, and the other end of the pipe body 101a is provided with a through port 101c.

[0042] It should be noted that the end of the tube body 101a having the through opening 101c is provided with an area for accommodating the front movable block 105c. When the front movable block 105c enters the area, the delivery port 101b closest to the front movable block 105c is flush with the edge of the front movable block 105c.

[0043] The delivery pipe 102 includes a casting port 102a, and one end of the delivery pipe 102 connected to the conveying pipe 101 is provided with an external clamping joint 102b.

[0044] Preferably, the conveying pipeline 101 and the delivery pipeline 102 are movably connected via an inner clamping joint 101d and an outer clamping joint 102b respectively, and both the inner clamping joint 101d and the outer clamping joint 102b are circular rings with L-shaped cross-sections.

[0045] The butt joint 103 includes a pressing head 103a, the outer side of the pressing head 103a is movably connected to the inner wall of the delivery pipe 101 through a spring 103b, and a clamping rod 103c is provided at the rear end of the pressing head 103a, and the clamping rod 103c is movably connected to the clamping shell 103e through a torsion spring rotating shaft 103d;

[0046] The clamping rod 103c is L-shaped as a whole, with an inclined front end and a conical rear end, and the rear end of the clamping rod 103c passes through the side opening 103f on the clamping housing 103e.

[0047] Preferably, after the rear end of the clamping rod 103 c passes through the side opening 103 f , if the docking head 103 and the clamping slot 205 are in a docking state, the clamping rod 103 c will be clamped into the card interface 207 .

[0048] Preferably, when the pressing head 103a is squeezed, the pressing head 103a passes through the through hole 101c and presses the front end of the clamping rod 103c, causing the clamping rod 103c to deflect. At this time, the rear end of the clamping rod 103c will disengage from the clamping interface 207, allowing the conveying mechanism 100 to disengage from the mold 300.

[0049] The pushing member 105 includes a rotating motor 105a, which is connected to the push rod 104. A screw rod 105e is provided at the output end of the rotating motor 105a. The other end of the screw rod 105e is movably connected to the front movable block 105c. A rear movable block 105b is provided on the screw rod 105e. A diaphragm 105d is provided between the rear movable block 105b and the front movable block 105c. The diaphragm 105d wraps the screw rod 105e, and the interior of the diaphragm 105d is a closed area. The delivery pipe 108 penetrates the rear movable block 105b to deliver the filling liquid into the diaphragm 105d.

[0050] Preferably, the rear movable block 105b can move slowly along the screw rod 105e, and at the same time, the delivery pipe 108 will continuously fill the diaphragm 105d with insulating oil to keep the density of the casting solution in the outer area of ​​the diaphragm 105d consistent. At the same time, the casting solution will rotate when entering the tube body 101a, and the speed is the same direction and consistent with the mold 300.

[0051] It should be noted that the rear movable block 105b needs certain restrictions so that the rear movable block 105b cannot rotate during the slow movement process, which is not shown in the specific structure diagram.

[0052] The rotary drive device 200 includes a drive motor 201 , the output end of which is provided with a transmission head 202 , which transmits power to a driven head 204 via a track 203 , the inner side of the driven head 204 is connected to a card slot 205 via a connecting rod 206 , and a card interface 207 is provided inside the card slot 205 .

[0053] Since the solution during casting is mostly molten metal, the material of the diaphragm 105d needs to have a certain degree of deformation ability and needs to be able to withstand high temperatures. A nickel-based alloy, such as Hastelloy, can be used.

[0054] The diameters of the rear movable block 105b and the front movable block 105c are consistent with the inner diameter of the conveying pipeline 101.

[0055] The solution stored in the storage tank 106 has the property of withstanding extremely high temperatures. Heat-insulating oil can be used.

[0056] When in use, the docking head 103 of the conveying mechanism 100 is inserted into the interior of the mold 300, and the clamping rod 103c is retracted and clamped into the clamping interface 207 to complete the docking of the conveying mechanism 100 and the rotating drive device 200.

[0057] The casting solution is introduced from the casting port 102a into between the rear movable block 105b and the front movable block 105c, and then, under the push of the electric rod 111, the pusher 105 will carry the casting solution into the tube body 101a, and the solution will start to rotate, and then pass through the various delivery ports 101b one after another. During this period, the rotating motor 105a does not work, and the delivery pipe 108 will continuously deliver insulation oil to the diaphragm 105d to expand the diaphragm 105d, so that the density of the casting solution between the front movable block 105c and the front movable block 105c is consistent. When the front movable block 105c moves to the end of the tube body 101a, the rotating motor 105a starts to work, and at the same time, the joint 103 gradually disengages from the clamping groove 205. Finally, the rear movable block 105b squeezes all the casting solution into the mold 300. At the same time, the delivery mechanism 100 completes the disengagement from the clamping groove 205, and the rotation speed of the mold 300 is increased.

[0058] In summary, the device rotates the conveying pipe 101 so that the casting solution rotates at the same speed as the mold 300 during the casting process, effectively preventing the molding sand layer inside the mold 300 from being eroded by the casting solution, thereby increasing the service life of the mold 300; at the same time, the pushing member 105 is used to ensure that the volume of the casting solution injected from the injection port 101b is consistent per unit time, ensuring that the casting solution is evenly distributed in the mold, thereby improving the quality of the finished product; when the casting work is completed, the mold will increase the rotation speed to further improve the quality of the final product.

[0059] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0060] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0061] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A centrifugal casting device for ultra-high temperature alloy parts, characterized in that: include, A conveying mechanism (100), wherein the conveying mechanism (100) is provided with a pouring port (102a) during casting, and the conveying mechanism (100) can also gradually push the liquid casting into the interior of the casting mold; A rotary drive device (200), serving as a driving member of the entire device, capable of simultaneously rotating the mold (300) and the conveying pipe (101) in the conveying mechanism (100); The conveying pipe (101) is provided with a plurality of delivery ports (101b), and under the action of the rotation drive device (200), the casting solution in the conveying pipe (101) is rotated and thrown out from the delivery ports (101b), and the casting solution at this time maintains the same rotation speed and rotation direction as the mold (300); The conveying mechanism (100) further comprises a pushing member (105), wherein a diaphragm (105d) in the pushing member (105) gradually expands to keep the density of the casting solution ejected from each of the injection ports (101b) unchanged; The pushing member (105) comprises a rotating motor (105a), the rotating motor (105a) being connected to the push rod (104), a screw rod (105e) being provided at the output end of the rotating motor (105a), the other end of the screw rod (105e) being movably connected to the front movable block (105c), a rear movable block (105b) being provided on the screw rod (105e), a diaphragm (105d) being provided between the rear movable block (105b) and the front movable block (105c), the diaphragm (105d) wrapping the screw rod (105e), and the interior of the diaphragm (105d) being a closed area; a delivery pipe (108) passing through the rear movable block (105b) to deliver filling liquid into the diaphragm (105d).

2. The ultrahigh temperature alloy centrifugal casting device according to claim 1, characterized in that: The conveying mechanism (100) comprises the conveying pipeline (101), one end of the conveying pipeline (101) is provided with a delivery pipeline (102), the other end of the conveying pipeline (101) is provided with a docking joint (103), the other end of the delivery pipeline (102) is provided with the pushing member (105), the pushing member (105) is placed on one end of a push rod (104), the other end of the push rod (104) is connected to the output end of an electric rod (111) via a connecting plate (112); the electric rod (111) is mounted on a bracket (109), and a roller (110) is provided on the bracket (109); A storage box (106) is provided on one side of the connecting plate (112), and the storage box (106) transports filling liquid into the pushing member (105) through a pump (107) on one side of the storage box (106) using a delivery pipe (108) on the pump (107).

3. The ultrahigh temperature alloy centrifugal casting device according to claim 2, characterized in that: The delivery pipeline (101) comprises a pipe body (101a), on which a plurality of delivery ports (101b) are linearly and equidistantly distributed, one end of the pipe body (101a) connected to the delivery pipeline (102) is provided with an internal clamping joint (101d), and the other end of the pipe body (101a) is provided with a through port (101c).

4. The ultrahigh temperature alloy centrifugal casting device according to claim 2, characterized in that: The delivery pipeline (102) comprises a casting port (102a), and one end of the delivery pipeline (102) connected to the conveying pipeline (101) is provided with an external clamping joint (102b).

5. The ultrahigh temperature alloy centrifugal casting device according to claim 2, characterized in that: The docking joint (103) comprises a pressing head (103a), the outer side of the pressing head (103a) being movably connected to the inner wall of the conveying pipe (101) via a spring (103b), a clamping rod (103c) being provided at the rear end of the pressing head (103a), and the clamping rod (103c) being movably connected to the clamping shell (103e) via a torsion spring rotating shaft (103d); The clamping rod (103c) is L-shaped as a whole, with an inclined front end and a conical rear end, and the rear end of the clamping rod (103c) passes through a side opening (103f) on the clamping shell (103e).

6. The ultrahigh temperature alloy centrifugal casting device according to claim 1, characterized in that: The rotary drive device (200) comprises a drive motor (201), the output end of the drive motor (201) being provided with a transmission head (202), the transmission head (202) transmitting power via a crawler belt (203) and a driven head (204), the inner side of the driven head (204) being connected to a card slot (205) via a connecting rod (206), and a card interface (207) being provided inside the card slot (205).

7. The ultrahigh temperature alloy centrifugal casting device according to claim 1, characterized in that: The material of the diaphragm (105d) is a nickel-based alloy.

8. The ultrahigh temperature alloy centrifugal casting device according to claim 1, characterized in that: The diameters of the rear movable block (105b) and the front movable block (105c) are consistent with the inner diameter of the conveying pipeline (101).

9. The ultrahigh temperature alloy centrifugal casting device according to claim 2, characterized in that: The solution stored in the storage box (106) is heat-insulating oil.

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