CN1962108A - Forming method of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings - Google Patents
Forming method of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings Download PDFInfo
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- CN1962108A CN1962108A CN 200610151057 CN200610151057A CN1962108A CN 1962108 A CN1962108 A CN 1962108A CN 200610151057 CN200610151057 CN 200610151057 CN 200610151057 A CN200610151057 A CN 200610151057A CN 1962108 A CN1962108 A CN 1962108A
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Abstract
The invention relates to a method for shaping high-strength high-temperature resistant special curvature corrugated board element, wherein it comprises 1, filling adhesive soft mould material into the soft mould material chamber whose top is open; 2, putting the board blank on the top of chamber, arranging the shaping mould on the upper surface of blank, the section chamber of mould is downward and opposite to the open of chamber; 3, putting adhesive soft mould material upward at its bottom, to contact the blank to the inner surface of section chamber. The invention has high accuracy and simple process.
Description
Technical field
The invention belongs to the sheet material forming technical field, be specifically related to the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings.
Background technology
High-strength high temperature-resistant material (as stainless steel, high temperature alloy etc.) is one of industrial Thermal Power Engineering, Aeronautics and Astronautics field material commonly used.For the raising and the lightweight of implementation structure performance, the wall thickness of part is attenuate gradually, and thin-walled and ultra-thin wall thickness part are increasing, and its dimensional accuracy and Thickness Distribution have significant effects to its serviceability, and forming technique is had higher requirement.Facts have proved, be easy to generate serious local attenuation even cracking when adopting the rigid mould manufacturing process to make such part; Soft mode material barotolerance is poor during flexible die formings such as employing polyurethane rubber, deflection is limited, and it is poor that mould is pasted at the less position of subsequent corrosion, and the geomery error is big; Need be heated to suitable temperature to sheet material when adopting hot forming, and need to select suitable shaping rate, can change the surface quality of sheet material, and cost be higher.
Summary of the invention
Poor dimensional precision, crackly problem when being shaped in order to solve high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings, a kind of manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings is provided, and it is realized by the following step: step 1, upper top had in the uncovered soft mode material storehouse inner chamber be full of viscosity soft mode material; Step 2, high strength, slab material high temperature resistant, that thin-walled is thick are placed on the upper top in soft mode material storehouse, then the forming mold pressing are placed on the upper surface of slab material, the die cavity of shaping pattern uncovered corresponding towards the below and with soft mode material storehouse; Step 3, the bottom from viscosity soft mode material in soft mode material storehouse upwards promote viscosity soft mode material, the slab material upwards is fitted on the inner surface of forming model cavity can finishes forming step.
The characteristics of manufacturing process of the present invention are: adopt the room temperature manufacturing process for high-strength high temperature-resistant material thin wall part, rather than traditional hot forming, the room temperature manufacturing process is a flexible die forming, the soft mode material is a kind of semisolid stickum.Make stickum that power is delivered to slab material surface by injecting loading method, the slab material is deformed, the mould that holds semisolid viscosity soft mode material is called soft mode material storehouse, and loads the viscosity soft mode material that promotes in the soft mode material storehouse by plunger.By semi-solid stickum as the soft mode material, can make full use of the good characteristics of its high pressure current downflow, and semisolid viscosity soft mode material seals easily, therefore can more easily set up high pressure, can go out the special-shaped curved corrugated fittings of the less complicated shape of subsequent corrosion by once-forming on slab material surface.Viscosity soft mode material has stronger sensitivity of strain rate, can set up pressure distribution heterogeneous on slab material surface, be adapted to the variation of slab material deformation process stress, the viscous adhesion at viscosity soft mode material and slab material interface can promote the slab material to flow to the big zone of distortion, improves the uniformity of formation of parts Thickness Distribution.Compare with existing manufacturing process, the high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings that this method is shaped has the dimensional accuracy height, surface quality is good, mould structure is simple and advantage of low manufacturing cost, the local subsequent corrosion minimum of described corrugated plating can reach 2.3mm, is suitable for the shaping manufacturing of the thin-wall special-shaped curved surface corrugated fittings in field such as industrial Thermal Power Engineering, aircraft, spacecraft and automobile.
Description of drawings
Fig. 1 is the schematic diagram of the high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings of the inventive method processing, Fig. 2 is the amplification view at A place among Fig. 1, Fig. 3 be before slab material 3 is shaped in the embodiment one original state and be arranged on shaping pattern 1 and soft mode material storehouse 5 between structural representation, Fig. 4 is the schematic diagram when passing through plunger 6 loading viscosity soft mode materials in the embodiment one, Fig. 5 is the schematic diagram of slab material 3 when pasting mould fully, Fig. 6 is the schematic diagram behind the unloading viscosity soft mode material, and Fig. 7 is the structural representation in soft mode material storehouse 5 in the embodiment seven.
The specific embodiment
The specific embodiment one: specify present embodiment below in conjunction with Fig. 1 to Fig. 6.Present embodiment is realized by the following step: step 1, upper top had in uncovered soft mode material storehouse 5 inner chambers be full of viscosity soft mode material 4; Step 2, high strength, slab material 3 high temperature resistant, that thin-walled is thick are placed on the upper top in soft mode material storehouse 5, then shaping pattern 1 are pressed on the upper surface of slab material 3, the die cavity of shaping pattern 1 uncovered corresponding towards the below and with soft mode material storehouse 5; Step 3, the bottom from viscosity soft mode material 4 in soft mode material storehouse 5 upwards promote viscosity soft mode material 4 by plunger 6, make slab material 3 upwards be fitted on the die cavity inner surface of shaping pattern 1 corrugated fittings of the designed shape that is shaped.Above-mentioned steps is all at room temperature carried out, and does not need heating.The inner chamber in described soft mode material storehouse 5 is " funnel " shapes.So be provided with, the open topped of " funnel " shape inner chamber area corresponding with the pattern die cavity is big, helps upwards fitting of slab material 3, and the cylindrical hole of " funnel " shape inner chamber lower end helps plunger 6 placements and upwards promotes viscosity soft mode material 4.
The specific embodiment two: specify present embodiment below in conjunction with Fig. 4.The difference of present embodiment and embodiment one is: in step 2, the outer rim of slab material 3 is clipped between the edge of the edge of end face on the soft mode material storehouse 5 and shaping pattern 1 lower surface, the pressure-pad-force of 1 pair of slab material 3 of shaping pattern is less than 20MPa, and slab material 3 outer edge are provided with sealing ring 2.So be provided with, can prevent that viscosity soft mode material 4 from spilling from the contact-making surface of shaping pattern 1 with soft mode material storehouse 5.Other step is identical with embodiment one.
The specific embodiment three: the difference of present embodiment and embodiment one is: in step 3, the pressure of the viscosity soft mode material 4 in the soft mode material storehouse 5 is less than 130MPa.Other step is identical with embodiment one.
The specific embodiment four: the difference of present embodiment and embodiment one is: slab material 3 is stainless steel, nickel base superalloy or iron-base superalloy.The stainless trade mark is as 1Cr18Ni9Ti, 0Cr18Ni9 etc.Nickel base superalloy is as GH3044, GH4169, GH99 etc.Iron-base superalloy is as GH161, GH13 etc.
The specific embodiment five: the difference of present embodiment and embodiment one is: the wall thickness of slab material 3 is between 0.3mm to 1.5mm.
The specific embodiment six: specify present embodiment below in conjunction with Fig. 3.The difference of present embodiment and embodiment one is: viscosity soft mode material 4 for molecular weight 400,000～600, between the 000g/mol, viscosity is 10,000～16, the macromolecule polymer material between the 000Pas, and its states of matter is a semisolid.Methyl vinyl silicone rubber for example.
The specific embodiment seven: specify present embodiment below in conjunction with Fig. 7.The difference of present embodiment and embodiment one is: have one to ten " funnel " shape inner chamber 5-1 in the soft mode material storehouse 5, the axial line of all the inner chamber 5-1 viscosity soft mode material 4 that is full of parallel to each other and inner.So be provided with, by apply different pressure in the different inner chamber 5-1 in soft mode material storehouse 5, build-up pressure gradient on the surface of slab material 3 helps improving forming accuracy.
Claims (10)
1, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings is characterized in that it is realized by the following step: step 1, upper top had in the uncovered soft mode material storehouse inner chamber be full of viscosity soft mode material; Step 2, high strength, slab material high temperature resistant, that thin-walled is thick are placed on the upper top in soft mode material storehouse, then the forming mold pressing are placed on the upper surface of slab material, the die cavity of shaping pattern uncovered corresponding towards the below and with soft mode material storehouse; Step 3, the bottom from viscosity soft mode material in soft mode material storehouse upwards promote viscosity soft mode material, and the slab material upwards is fitted on the die cavity inner surface of shaping pattern.
2, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1, the inner chamber that it is characterized in that described soft mode material storehouse (5) are " funnel " shapes.
3, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1 is characterized in that in the step 3 that the bottom from viscosity soft mode material (4) upwards promotes viscosity soft mode material (4) by plunger (6) in soft mode material storehouse (5).
4, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1, it is characterized in that in step 2, the outer rim of slab material (3) is clipped in soft mode material storehouse (5) and goes up between the edge of the edge of end face and shaping pattern (1) lower surface, less than 20MPa, slab material (3) outer edge is provided with sealing ring (2) to shaping pattern (1) to the pressure-pad-force of slab material (3).
5, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1 is characterized in that in step 3, and the pressure of the viscosity soft mode material (4) in the soft mode material storehouse (5) is less than 130MPa.
6, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1 is characterized in that slab material (3) is stainless steel, nickel base superalloy or iron-base superalloy.
7, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1, the wall thickness that it is characterized in that slab material (3) is at 0.3mm～1.5mm.
8, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1, it is characterized in that viscosity soft mode material (4) is that molecular weight is 400,000～600, between the 000g/mol, viscosity is 10,000～16, macromolecule polymer material between the 000Pas, and its states of matter is a semisolid.
9, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 8 is characterized in that viscosity soft mode material (4) is a methyl vinyl silicone rubber.
10, the manufacturing process of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings according to claim 1, it is characterized in that having in the soft mode material storehouse (5) one to ten " funnel " shape inner chamber (5-1), the axial line of all inner chambers (5-1) the viscosity soft mode material (4) that is full of parallel to each other and inner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610151057 CN1962108A (en) | 2006-11-24 | 2006-11-24 | Forming method of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610151057 CN1962108A (en) | 2006-11-24 | 2006-11-24 | Forming method of high-strength high temperature-resistant thin-wall special-shaped curved corrugated fittings |
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| CN1962108A true CN1962108A (en) | 2007-05-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675998A (en) * | 2019-01-23 | 2019-04-26 | 哈尔滨工业大学 | A kind of viscous pressure forming method of local curvature's mutation sheet cover |
| CN109675999A (en) * | 2019-01-23 | 2019-04-26 | 哈尔滨工业大学 | A kind of curvature mutation sheet cover viscous pressure forming device |
| CN112917988A (en) * | 2021-02-10 | 2021-06-08 | 哈尔滨工业大学 | Non-uniform pressure control method for composite viscous medium |
-
2006
- 2006-11-24 CN CN 200610151057 patent/CN1962108A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675998A (en) * | 2019-01-23 | 2019-04-26 | 哈尔滨工业大学 | A kind of viscous pressure forming method of local curvature's mutation sheet cover |
| CN109675999A (en) * | 2019-01-23 | 2019-04-26 | 哈尔滨工业大学 | A kind of curvature mutation sheet cover viscous pressure forming device |
| CN109675998B (en) * | 2019-01-23 | 2020-02-07 | 哈尔滨工业大学 | Viscous medium pressure forming method for local curvature abrupt change thin-wall covering part |
| CN112917988A (en) * | 2021-02-10 | 2021-06-08 | 哈尔滨工业大学 | Non-uniform pressure control method for composite viscous medium |
| CN112917988B (en) * | 2021-02-10 | 2022-01-07 | 哈尔滨工业大学 | Non-uniform pressure control method for composite viscous medium |
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