A seamless bellows forming die of gh4169

Abstract

The application discloses a GH4169 seamless bellows forming die, which comprises a plurality of half-open forming wave dies, a forming wave sleeve die, process wave outer end dies, a half-open process wave forming die one and a half-open process wave forming die two, forming wave grooves one are formed between left and right adjacent half-open forming wave dies, and forming wave parts for limiting extrusion forming bellows bodies are arranged in the forming wave grooves one, wherein process wave grooves are formed between the half-open process wave forming die one and the process wave outer end dies on one side, process wave grooves are formed between the half-open process wave forming die two and the process wave outer end dies on the other side, and process wave end parts for limiting extrusion forming bellows bodies are arranged in the process wave grooves. When the forming wave parts are extrusion formed, the deformation caused by rebound at the moment of pressure relief acts on the process wave end parts, and then the process wave end parts on the two sides of the forming wave parts are cut, so that the required bellows can be obtained, and the operation is convenient.

Description

Technical Field

[0001] This invention relates to the field of seamless corrugated pipe forming mold technology, specifically to a GH4169 seamless corrugated pipe forming mold. Background Technology

[0002] GH4169 is a precipitation-strengthened nickel-based superalloy with excellent comprehensive properties in the temperature range of -253℃ to 650℃. Its yield strength below 650℃ is the highest among wrought superalloys. It also exhibits good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, as well as good machinability and weldability. It can be used to manufacture parts with various complex shapes and has found extremely wide applications in aerospace, nuclear energy, petroleum industries, and extrusion dies within the aforementioned temperature range.

[0003] In the process of preparing seamless corrugated pipes using GH4169 material, as in the prior art, the patent "A Differential Temperature Continuous Forming Method for Titanium Alloy U-shaped Corrugated Pipes" with publication number CN109967590B, the corrugation processing on the seamless alloy pipe is constrained by the lower and upper molds of the forming fixture. However, the following defects exist in the use process: when the press removes the load from the fixture mold, the corrugated pipe end wave will lose its constraint, causing the end wave material to rebound instantaneously. This results in a large and irregular variation in the end wave size, which cannot meet the high precision dimensional requirements and increases the difficulty of adjusting the end wave size of the corrugated pipe. Summary of the Invention

[0004] The purpose of this invention is to provide a GH4169 seamless corrugated pipe forming mold to solve the problem that the use of upper and lower forming molds in the prior art can easily cause the corrugated pipe end to spring back and deform.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A GH4169 seamless corrugated pipe forming mold, comprising:

[0007] Multiple semi-open forming wave molds, with a forming wave groove forming between adjacent semi-open forming wave molds on the left and right, and the forming wave section in the forming wave groove is used to restrict the forming wave section of the extruded forming corrugated tube body.

[0008] The forming wave sleeve mold is detachably connected to the semi-open forming wave mold, and the semi-open forming wave mold that is engaged with the upper and lower parts is fixed to the corrugated pipe body through the forming wave sleeve mold.

[0009] The outer end mold of the process wave is sleeved on both sides of the forming wave part of the corrugated pipe body. On one side, the outer end mold of the process wave and the forming wave sleeve mold are clamped together with the inner end mold of the process wave one. On the other side, the outer end mold of the process wave and the forming wave sleeve mold are clamped together with the inner end mold of the process wave two.

[0010] A semi-open process wave forming mold is detachably connected to the inner end mold of the process wave, and the upper and lower interlocking semi-open process wave forming mold is fixed to the corrugated pipe body through the inner end mold of the process wave.

[0011] The second half-open process wave forming mold is detachably connected to the second inner end mold of the process wave, and the second half-open process wave forming mold, which is engaged with the upper and lower parts, is fixed to the corrugated pipe body through the second inner end mold of the process wave.

[0012] The semi-open process wave forming mold one forms a process wave groove between the process wave outer end mold on one side, and the semi-open process wave forming mold two forms a process wave groove between the process wave outer end mold on the other side. The process wave groove is used to restrict the process wave end of the extrusion forming of the corrugated pipe body.

[0013] As a further aspect of the present invention: a mounting groove is provided on one end face of the forming wave mold, and the half-open forming wave mold that engages with the upper and lower parts is assembled in the mounting groove.

[0014] As a further aspect of the present invention: the forming wave mold is provided with snap-fit ​​grooves II evenly distributed on the periphery of the mounting groove, and snap-fit ​​protrusions III on the semi-open forming wave mold are snapped into the snap-fit ​​grooves II.

[0015] As a further aspect of the present invention: a forming groove is formed on one end face of the semi-open forming wave mold.

[0016] As a further aspect of the present invention: a snap-fit ​​groove is evenly distributed on one side end face of the inner end mold of the process wave, and the snap-fit ​​groove is snap-fitted to the snap-fit ​​protrusion on the half-open process wave forming mold.

[0017] As a further aspect of the present invention: a second forming groove is provided on one end face of the semi-open process wave forming mold, and the second forming groove is used to restrict the forming wave portion of the corrugated tube body during extrusion forming.

[0018] As a further aspect of the present invention: a snap-fit ​​groove is evenly distributed on one side end face of the semi-open process wave forming mold 2, and the snap-fit ​​groove is used to snap-fit ​​the snap-fit ​​protrusion 2 on the semi-open process wave forming mold 2.

[0019] As a further aspect of the present invention: a forming groove is formed between the semi-open process wave forming mold two and the semi-open forming wave mold.

[0020] As a further embodiment of the present invention: the first inner end mold of the process wave, the second inner end mold of the process wave, the first semi-open process wave forming mold, the second semi-open process wave forming mold, the forming wave sleeve mold, and the semi-open forming wave mold are all provided with multiple demolding holes.

[0021] The beneficial effects of this invention are as follows: When the corrugated part is extruded and formed, at the instant the pressure is released from the outer end die of one side of the process corrugation, the outermost end of the corrugated part of the corrugated body is restricted from rebounding by the semi-open process corrugation forming die one and the semi-open process corrugation forming die two. This can ensure the processing accuracy of the corrugated part of the corrugated body and improve the processing quality of the corrugated part of the corrugated body. The deformation caused by the rebound at the instant of pressure release acts on the process corrugation end. Subsequently, by cutting the process corrugation ends on both sides of the corrugated part, the corrugated tube to be formed can be obtained. The operation is convenient and solves the problem that the corrugated end of the corrugated tube is easily deformed by the rebound of the upper and lower forming dies in the prior art. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram showing the disassembled parts of the present invention;

[0025] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the process wave outer end-mode structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the inner end-mode side of the process wave of the present invention;

[0028] Figure 6 This is a schematic diagram of the inner end mode of the process wave of the present invention from another side.

[0029] Figure 7 This is a side view of the semi-open process wave forming mold of the present invention;

[0030] Figure 8 This is a schematic diagram of another side of the semi-open process wave forming mold of the present invention;

[0031] Figure 9 This is a schematic diagram of the two sides of the semi-open process wave forming mold of the present invention;

[0032] Figure 10 This is a schematic diagram of another side of the semi-open process wave forming mold of the present invention;

[0033] Figure 11This is a side view of the molding wave die of the present invention;

[0034] Figure 12 This is a schematic diagram of the molding wave die of the present invention from another side;

[0035] Figure 13 This is a side view of the semi-open forming wave pattern of the present invention;

[0036] Figure 14 This is a schematic diagram of the other side of the semi-open forming wave mold of the present invention;

[0037] Figure 15 This is a schematic diagram of the process for removing the corrugated end of the corrugated pipe body according to the present invention.

[0038] In the diagram: 1. Outer end mold of the process wave; 10. Process wave groove; 2. Inner end mold of the process wave (I); 20. Semi-open process wave forming mold (I); 21. Snap-on groove (I); 200. Snap-on protrusion (I); 201. Forming wave groove (II); 3. Inner end mold of the process wave (II); 30. Semi-open process wave forming mold (II); 31. Snap-on protrusion (II); 4. Forming wave sleeve mold; 40. Semi-open forming wave mold; 41. Mounting groove; 42. Snap-on groove (II); 400. Snap-on protrusion (III); 401. Forming wave groove (I); 5. Corrugated pipe body; 50. Process wave end; 51. Forming wave section. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; in the description of this invention, "a plurality of" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] Please see Figure 1-4As shown, this invention is a GH4169 seamless corrugated pipe forming mold, including multiple semi-open forming corrugated molds 40, forming corrugated sleeve molds 4, process corrugated outer end molds 1, semi-open process corrugated forming mold one 20, and semi-open process corrugated forming mold two 30. A forming corrugated groove one 401 is formed between adjacent semi-open forming corrugated molds 40. The forming corrugated groove one 401 is used to restrict the forming corrugated part 51 of the corrugated pipe body 5 by extrusion forming. The forming corrugated sleeve mold 4 is detachably connected to the semi-open forming corrugated molds 40, and the semi-open forming corrugated molds 40 are fixed to the corrugated pipe body 5 by the forming corrugated sleeve mold 4. The process corrugated outer end mold 1 is located on the corrugated pipe body 5. The forming wave section 51 is sleeved on both sides. On one side, the outer end mold 1 of the process wave and the forming wave sleeve mold 4 are clamped together with the inner end mold 2 of the process wave. On the other side, the outer end mold 1 of the process wave and the forming wave sleeve mold 4 are clamped together with the inner end mold 3 of the process wave. The semi-open forming mold 20 of the process wave is detachably connected to the inner end mold 2 of the process wave, and the upper and lower clamped semi-open forming mold 20 of the process wave is fixed to the corrugated pipe body 5 by the inner end mold 2 of the process wave. The semi-open forming mold 30 of the process wave is detachably connected to the inner end mold 3 of the process wave, and the upper and lower clamped semi-open forming mold 30 of the process wave is fixed to the corrugated pipe body 5 by the inner end mold 3 of the process wave.

[0042] Among them, a process wave groove 10 is formed between the semi-open process wave forming die 1 20 and the process wave outer end die 1 on one side, and a process wave groove 10 is formed between the semi-open process wave forming die 2 30 and the process wave outer end die 1 on the other side. The process wave groove 10 is used to restrict the process wave end 50 of the extruded corrugated tube body 5.

[0043] During the processing of the corrugated pipe body 5 made of GH4169 material, an outer end mold 1 of the process wave is fitted onto one side of the forming wave portion 51 position on the corrugated pipe body 5. A semi-open process wave forming mold 20 is installed close to this side of the outer end mold 1 and fitted with the inner end mold 2 of the process wave to restrict the upper and lower fitting of the semi-open process wave forming mold 20. Multiple semi-open forming wave molds 40 are sequentially fitted onto the corrugated pipe body 5 and fitted with a forming wave sleeve mold 4 to restrict the upper and lower fitting of the semi-open forming wave mold 40. Then, a semi-open process wave forming mold 30 that is fitted with the upper and lower fitting is fixed onto the corrugated pipe body 5 and fitted with a second inner end mold 3 of the process wave to restrict the upper and lower fitting of the semi-open process wave forming mold 30. Finally, the outer end mold 1 of the process wave is fitted onto the other side of the forming wave portion 51 position on the corrugated pipe body 5, completing the assembly of the forming molds on the corrugated pipe body 5.

[0044] When extruding the corrugated portion 51, one side of the process wave outer end mold 1 is fixed, and the corrugated pipe body 5 is extruded from the other side of the process wave outer end mold 1 using a hydraulic press. This restricts the extrusion of the corrugated portion 51 within the second forming groove 201. Meanwhile, the process wave ends 50 of the corrugated pipe body 5 are restricted on both sides of the corrugated portion 51 by process wave grooves 10. After the corrugated pipe body 5 is formed by the mold, at the instant the pressure is released from one side of the process wave outer end mold 1, the outermost end of the corrugated portion 51 is restricted and springbacked by the half-open process wave forming mold 1 20 and the half-open process wave forming mold 2 30. This ensures the processing accuracy of the corrugated portion 51 and improves the processing quality. The deformation caused by the springback at the moment of pressure release acts on the process wave ends 50. Subsequently, the process wave ends 50 on both sides of the corrugated portion 51 are cut, such as... Figure 15 As shown, the desired corrugated pipe can be obtained through this process, which is convenient and solves the problem of springback deformation of the corrugated pipe ends caused by the use of upper and lower forming dies in the existing technology.

[0045] In this specific implementation, such as Figure 11 and Figure 12 As shown, a mounting groove 41 is provided on one end face of the forming corrugated sleeve mold 4. The mounting groove 41 is fitted with a half-open forming corrugated mold 40 that engages with the upper and lower parts, so that the forming corrugated sleeve mold 4 and the half-open forming corrugated mold 40 are easily restricted and installed. During the processing of the forming corrugated part 51 of the extruded corrugated pipe body 5, the forming corrugated sleeve mold stably restricts the half-open forming corrugated mold 40 that engages with the upper and lower parts, which can prevent the corrugated pipe body 5 from undergoing radial elastic deformation and ensure the processing quality.

[0046] Furthermore, such as Figure 12 and Figure 13 As shown, the molding wave mold 4 is provided with snap-fit ​​grooves 42 evenly distributed on the periphery of the mounting groove 41. The snap-fit ​​grooves 42 are used to snap-fit ​​the snap-fit ​​protrusions 400 on the half-open molding wave mold 40. The snap-fit ​​grooves 42 are used to limit and fix the snap-fit ​​protrusions 400, which can prevent the half-open molding wave mold 40 installed with the upper and lower parts from deflecting and shifting, and improve the stability of the half-open molding wave mold 40 installed with the upper and lower parts engaged.

[0047] Furthermore, such as Figure 14 As shown, a forming groove 401 is provided on one end face of the semi-open forming wave mold 40. When the adjacent semi-open forming wave molds 40 are clamped and abutted, it is easy to quickly form a limiting cavity of the forming groove 401, so that the semi-open forming wave mold 40 can be processed and designed in a standardized manner, ensuring that the forming wave part 51 on the corrugated pipe body 5 is uniformly extruded and formed.

[0048] In this specific implementation, such as Figure 5-8As shown, snap-fit ​​grooves 21 are evenly distributed on one side end face of the inner end mold 2 of the process wave. The snap-fit ​​grooves 21 snap-fit ​​the snap-fit ​​protrusions 200 on the half-open process wave forming mold 20. The snap-fit ​​grooves 21 are used to limit and fix the snap-fit ​​protrusions 200, which can prevent the half-open process wave forming mold 20 of the upper and lower snap-fit ​​installation from deflection and displacement, and improve the stability of the half-open process wave forming mold 20 of the upper and lower snap-fit ​​installation.

[0049] Furthermore, such as Figure 8 As shown, a forming groove 201 is provided on one end face of the semi-open process wave forming mold 20. The forming groove 201 is used to restrict the forming wave portion 51 of the extruded corrugated tube body 5. When the number of forming wave portions 51 to be formed is not equal, the forming groove 401 formed by adjacent semi-open forming molds 40 cannot meet the design requirements of the number of forming wave portions 51. The design requirements of forming wave portions 51 can be met by adding a forming groove 201 to the semi-open process wave forming mold 20.

[0050] In this specific implementation, such as Figure 9-10 As shown, a series of snap-fit ​​grooves 21 are evenly distributed on one end face of the semi-open process wave forming mold 30. The snap-fit ​​grooves 21 are used to snap-fit ​​protrusions 31 on the semi-open process wave forming mold 30. The snap-fit ​​grooves 21 are used to limit and fix the snap-fit ​​protrusions 31, which can prevent the semi-open process wave forming mold 30 installed with the upper and lower parts from deflecting or shifting, and improve the stability of the semi-open process wave forming mold 30 installed with the upper and lower parts engaged.

[0051] Furthermore, such as Figure 3 As shown, a forming groove 401 is formed between the semi-open process wave forming mold 30 and the semi-open forming wave mold 40, so that the semi-open process wave forming mold 30 can be used to resist and restrict the outermost semi-open forming wave mold 40, which facilitates the formation of the forming groove 401.

[0052] In this specific implementation, such as Figure 2 As shown, multiple demolding holes are provided on the inner end mold 1 2, inner end mold 2 3, semi-open process wave forming mold 1 20, semi-open process wave forming mold 2 30, forming wave sleeve mold 4, and semi-open forming wave mold 40. When the various components of the forming mold of this application are sleeved and installed on the corrugated pipe body 5, during the high-strength extrusion forming process, the various separable components fit tightly together, making it easy to use tools to separate the various components in the provided demolding holes, which is convenient for operation.

[0053] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A GH4169 seamless bellows forming die characterized by, The utility model relates to a kind of extrusion forming wave tube forming device, including: A plurality of half-open forming wave mode (40), form wave groove one (401) is enclosed between left and right adjacent the half-open forming wave mode (40), the forming wave groove one (401) is used to limit extrusion forming wave part (51) of the forming wave tube body (5) in; Forming wave sleeve mode (4), with the half-open forming wave mode (40) between detachable connection, and by the forming wave sleeve mode (4) the half-open forming wave mode (40) fixed in wave tube body (5) is clamped to upper and lower; Process wave outer end mould (1), sleeve set in the forming wave part (51) of the wave tube body (5), one side process wave outer end mould (1) and forming wave sleeve mode (4) between clamping are equipped with process wave inner end mould one (2), the other side process wave outer end mould (1) and forming wave sleeve mode (4) between clamping are equipped with process wave inner end mould two (3); Half-open process wave forming die one (20), detachable connection is equipped on the process wave inner end mould one (2), and by the process wave inner end mould one (2) the half-open process wave forming die one (20) fixed in wave tube body (5) is clamped to upper and lower; Half-open process wave forming die two (30), detachable connection is equipped on the process wave inner end mould two (3), and by the process wave inner end mould two (3) the half-open process wave forming die two (30) fixed in wave tube body (5) is clamped to upper and lower; Wherein, the half-open process wave forming die one (20) and one side process wave outer end mould (1) between form process wave groove (10), and the half-open process wave forming die two (30) and the other side process wave outer end mould (1) between form process wave groove (10), process wave end (50) for extrusion forming the wave tube body (5) in the process wave groove (10).

2. The GH4169 seamless bellows forming die of claim 1, wherein, One side end surface of the forming wave sleeve mode (4) is equipped with installation groove (41), and the installation groove (41) is assembled and arranged the half-open forming wave mode (40) clamped to upper and lower.

3. The GH4169 seamless bellows forming die of claim 2, wherein, The half-open forming wave mode (40) is equipped with forming wave groove one (401) on one side end surface.

4. The GH4169 seamless bellows forming die of claim 2, wherein, The half-open process wave forming die one (20) is equipped with forming wave groove two (201) on one side end surface, and the forming wave groove two (201) is used to limit extrusion forming the wave tube body (5) in forming wave part (51).

5. The GH4169 seamless bellows forming die of claim 1 wherein, The half-open process wave forming die two (30) is equipped with buckle slot one (21) on one side end surface, and the buckle slot one (21) is buckled and connected the buckle protrusion two (31) on the half-open process wave forming die two (30).

6. The GH4169 seamless bellows forming die of claim 5 wherein, ​ 7. The GH4169 seamless bellows forming die of claim 1 wherein, ​ 8. The GH4169 seamless bellows forming die of claim 7, wherein, The semi-open process wave forming die two (30) and the semi-open forming wave die (40) form a forming wave groove one (401).

9. The GH4169 seamless bellows forming die of claim 1 wherein, The process wave inner end die one (2), the process wave inner end die two (3), the semi-open process wave forming die one (20), the semi-open process wave forming die two (30), the forming wave sleeve die (4) and the semi-open forming wave die (40) are respectively provided with a plurality of demolding holes.

Images