CN112903174B - Corrugated pipe for nuclear fusion and manufacturing process thereof - Google Patents
Corrugated pipe for nuclear fusion and manufacturing process thereof Download PDFInfo
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- CN112903174B CN112903174B CN202011606258.8A CN202011606258A CN112903174B CN 112903174 B CN112903174 B CN 112903174B CN 202011606258 A CN202011606258 A CN 202011606258A CN 112903174 B CN112903174 B CN 112903174B
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- 230000004927 fusion Effects 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000007499 fusion processing Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 85
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 238000003466 welding Methods 0.000 claims abstract description 24
- 238000005452 bending Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 9
- 230000000399 orthopedic effect Effects 0.000 description 9
- 208000034656 Contusions Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000034526 bruise Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/06—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the bellows type
- G01L7/061—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the bellows type construction or mounting of bellows
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/124—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
- B21C37/125—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes curved section, e.g. elbow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The corrugated pipe for nuclear fusion comprises a pipe body, wherein a plurality of corrugated grooves are arranged on the side wall of the pipe body, the pipe body is formed by combining a first pipe blank, a second pipe blank and a third pipe blank from inside to outside, and the first pipe blank, the second pipe blank and the third pipe blank are respectively formed by bending a first coiled material, a second coiled material and a third coiled material and then welding two ends; the cross section of the tube blank is rectangular, and four corners of the cross section of the tube blank are rounded corners; after the tube blanks are sleeved to form tube bodies, the upper end and the lower end of each tube blank are welded and fixed. A process for manufacturing a bellows for nuclear fusion, comprising the steps of: (1) selecting materials; (2) blanking; (3) blanking; (4) deburring; (5) drawing lines at bending positions; (6) bracing; (7) welding process connection pipes and (8) corrugated pipe molding; (9) bellows reshaping; (10) cutting straight edges. The corrugated pipe has large cross-sectional area, is made of a plurality of layers of pipe blanks, and is suitable for occasions with high pressure or large displacement.
Description
Technical Field
The invention relates to a pipe fitting, in particular to a corrugated pipe for nuclear fusion and a manufacturing process thereof.
Background
The corrugated pipe is widely applied to instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force, and is generally a circular pipe and is generally of a single-layer structure, but for experiments or applications such as nuclear fusion, the common corrugated pipe has the problems that the cross section area is small, and the common corrugated pipe cannot be applied to occasions with high pressure or large displacement.
Disclosure of Invention
In order to solve the problems, the invention provides the following scheme:
a bellows for nuclear fusion, includes the pipe shaft, and a plurality of ripple grooves, its characterized in that have been arranged to pipe shaft lateral wall: the pipe body is formed by combining a first pipe blank, a second pipe blank and a third pipe blank from inside to outside, and the first pipe blank, the second pipe blank and the third pipe blank are respectively formed by bending a first coiled material, a second coiled material and a third coiled material and then welding two ends; the cross section of the pipe body is rectangular, and four corners of the cross section of the pipe body are rounded corners; and after the first tube blank, the second tube blank and the third tube blank are sleeved to form tube bodies, the upper end and the lower end of each tube blank are welded and fixed.
Further, the lengths of the first coiled material, the second coiled material and the third coiled material are gradually increased.
Further, after the first tube blank, the second tube blank and the third tube blank are sleeved, welding seams of the first coiled material, the second coiled material and the third coiled material are staggered.
A process for manufacturing a bellows for nuclear fusion, comprising the steps of:
(1) Selecting materials, namely selecting a first coiled material, a second coiled material and a third coiled material;
(2) Blanking, namely cutting the first coiled material, the second coiled material and the third coiled material into flat plates by using a flat-bed cutting machine, and marking corresponding size marks on each coiled material;
(3) Blanking, namely cutting coiled materials according to the size marks;
(4) Deburring, namely deburring the surface to be welded and the adjacent area;
(5) Drawing a line at the bending position, and drawing a bending line at the required bending position of the third coiled material;
(6) The left end and the right end of the first coiled material, the second coiled material and the third coiled material are respectively welded to form a round tube blank, and after the tube blanks are sleeved in sequence from inside to outside, the corresponding bending lines are used for supporting by a supporting tool, and the round tube blank is supported to a rectangular tube blank;
(7) Welding process connecting pipes, and welding and fixing the three layers of pipe blanks through argon arc welding at the upper and lower ports of the rectangular pipe blanks after square supporting;
(8) Forming a corrugated pipe, confirming the required single wave unfolding length, hoisting a pipe blank, and pressing a corrugated groove on the side wall of the pipe blank by using a square wave forming machine;
(9) The corrugated pipe is shaped, the pressed pipe blank is hoisted, and the corrugated groove is shaped by using a shape correcting machine; the specific flow is as follows: hoisting the pressed tube blank, placing the tube blank between an orthopedic driving wheel and a driven wheel, supporting the whole tube blank by using a supporting wheel, rotating the tube blank by using line friction between a wheel sheet and the tube blank, and taking down the tube blank after finishing the arc angle orthopedic of a small straight edge section at the end part of the tube blank;
(10) Cutting straight edges, drawing lines at two straight edge sections of the corrugated pipe by using mark strokes, cutting the straight edges according to the drawing line positions by using a plasma cutting machine, and polishing and leveling the two ends of the corrugated pipe after the straight edges are cut by using a polishing machine.
Further, the corrugated pipe molding process comprises the following steps:
(1) Confirming the required single wave unfolding length and drawing the central line marks of 3 corrugated grooves;
(2) Hoisting the tube blank into a forming die of a square wave forming machine, combining an upper limiting die with a lower limiting die to a gap distance of 105-115 mm, and then propping against the tube blank;
(3) Pushing the inner expansion die;
(4) And (3) removing all straight-edge dies, replacing the inner bulge fillet dies, continuing bulging, completing bulging of the first corrugation, lifting the pipe blank to the center mark position of the second corrugation, performing bulging of the second corrugation, and taking the third corrugation as an example for bulging, and then taking down the pipe blank.
The invention has the beneficial effects that:
1. the multi-layer structure is adopted, so that the high-flexibility displacement load absorbing capacity is greatly improved on the premise of ensuring high bearing capacity.
2. Only 1 weld ensures the structural integrity of the product, effectively reducing the risk of leakage in a nuclear safety device.
3. The side reduces the volume and risk of the nuclear safety device compared to a multilayer circular bellows which can provide a larger cross-sectional area for passage of the conduit.
Drawings
FIG. 1 is a top view of a bellows;
FIG. 2 is a schematic cross-sectional view of a corrugated groove;
FIG. 3 is a side view of a bellows;
FIG. 4 is a schematic cross-sectional view of a strut;
FIG. 5 is a schematic top view of a brace;
fig. 6 is an orthopedic schematic.
In the figure: 1. a first tube blank; 2. a second tube blank; 3. a third tube blank; 4. a corrugated groove; 5. a pipe body; 6. a side wall of the tube blank; 7. limiting the upper die outside the straight edge; 8. limiting the lower die outside the straight edge; 9. inner bulging upper guard plates; 10. an inner bulging die; 11. an inner bulging lower support platform; 12. a long straight edge outer limiting die; 13. a long straight edge inner expansion pressing plate; 14. a long straight edge inner bulging die; 15. round angle inner bulging die; 16. short straight edge inner bulging die; 17. a short straight edge inner bulge-shaped pressing plate; 18. limiting the mould outside the short straight edge; 19. a rounded inner bulge-shaped pressing plate; 20. a tube blank; 21. a corrugated tube blank; 22. a support wheel; 23. a hydraulic push rod; 24. a driving wheel; 25. a driven wheel; 26. the center of gravity of the tube blank.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present application more apparent. In the following description, certain specific details are set forth in order to provide a thorough understanding of the invention. While the invention may be practiced without these specific details, those skilled in the art will be able to more effectively introduce their operational nature to other persons of ordinary skill in the art that use the descriptions and representations herein. Furthermore, it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the present application. All of the starting materials used in the examples below were commercially available.
Example 1
The corrugated pipe for nuclear fusion comprises a pipe body 5, wherein a plurality of corrugated grooves 4 are arranged on the side wall of the pipe body 5, the pipe body is formed by combining a first pipe blank 1, a second pipe blank 2 and a third pipe blank 3 from inside to outside, the section of the pipe body is rectangular, and four corners of the section are rounded corners; after the first tube blank 1, the second tube blank 2 and the third tube blank 3 are sleeved to form a tube body 5, the upper end and the lower end are welded and fixed. The first tube blank 1, the second tube blank 2 and the third tube blank 3 are respectively manufactured by bending a first coiled material, a second coiled material and a third coiled material and then welding two ends. After the first tube blank 1, the second tube blank 2 and the third tube blank 3 are sleeved, welding seams of the first coiled material, the second coiled material and the third coiled material are staggered.
The first coil size is 11483 +/-1 mm long, 1219+/-2 mm wide and 1.5mm thick; the second coil size is 11495 + -1 mm long, 1219+ -2 mm wide and 1.5mm thick; the third coiled material has the size of 11507+ -1 mm long, 1219+ -2 mm wide and 1.5mm thick; the circumferential expansion length difference of two adjacent layers of the first coiled material, the second coiled material and the third coiled material is more than or equal to 11mm and less than or equal to 13mm. The single wave development length of the corrugation groove 4 is 330mm.
A process for manufacturing a bellows for nuclear fusion, comprising the steps of:
(1) Selecting materials, namely selecting a first coiled material, a second coiled material and a third coiled material;
(2) Blanking, namely cutting the first coiled material, the second coiled material and the third coiled material into flat plates by using a flat-bed cutting machine, and marking corresponding size marks on each coiled material;
(3) Blanking, namely cutting coiled materials according to the size marks;
(4) Deburring, namely deburring the surface to be welded and the adjacent area;
(5) Drawing lines at the bending positions, and drawing bending lines at the bending positions required by the third coiled material, wherein the intervals among the bending lines are 1218mm, 2517mm, 3236.5mm, 2517mm and 2018.5mm respectively;
(6) Welding left and right ends of a first coiled material, a second coiled material and a third coiled material to form a circular tube blank respectively, checking the surface of the tube blank, confirming that the surface has no defects such as scratch, bruise, pit and the like, cleaning the tube blank, sequentially sleeving the tube blank from inside to outside, taking a longitudinal welding seam of the second layer tube blank as a central line when sleeving the tube blank, staggering the longitudinal welding seam of the first layer and the third layer to two sides respectively, and supporting the circular tube blank to a rectangular tube blank by using a supporting tool corresponding to bending lines after sleeving;
(8) The corrugated pipe is formed,
1) Confirming the required single wave unfolding length and drawing the central line marks of 3 corrugated grooves;
2) Hoisting a tube blank into a forming die of a square wave forming machine, wherein the square wave forming machine comprises an upper straight edge outer limiting die 7, a lower straight edge outer limiting die 8, an inner straight edge bulging die, an inner round corner bulging die and an inner round corner bulging pressing plate, the upper straight edge limiting die 7 and the lower straight edge limiting die 8 are divided into a long straight edge outer limiting die 12 and a short straight edge outer limiting die 18, the long straight edge outer limiting die 12 corresponds to the long straight edge of the tube blank, the short straight edge outer limiting die 12 corresponds to the short straight edge of the tube blank, and the upper and lower outer limiting dies are combined to a gap distance of 105-115 and then abut against the tube blank;
3) Pushing the inner bulging die to 145mm, and stopping, wherein the pushing speed is not higher than 5mm/s;
4) And (3) removing all straight-edge dies, replacing the bulging fillet dies with fillet radii of 570mm, continuing bulging until the fillet radii are 140-145 mm, then completing bulging of the first corrugation, lifting the pipe blank to the center mark position of the second corrugation, performing bulging of the second corrugation, and taking the example as an example, and removing the pipe blank after bulging the third corrugation.
(9) The corrugated pipe is shaped, the corrugated groove is shaped by using a shape correcting machine, and the specific flow is as follows: hoisting the pressed tube blank, placing the tube blank between an orthopedic driving wheel 24 and a driven wheel 25, supporting the whole tube blank by using a supporting wheel 22, rotating the tube blank by using line friction between a wheel sheet and the tube blank, and taking down the tube blank after finishing the arc angle orthopedic of a small straight edge section at the end part of the tube blank;
(10) Cutting straight edges, drawing lines at two straight edge sections of the corrugated pipe by using mark strokes, cutting the straight edges according to the drawing line positions by using a plasma cutting machine, and polishing and leveling the two ends of the corrugated pipe after the straight edges are cut by using a polishing machine.
Example two
The corrugated pipe for nuclear fusion comprises a pipe body, wherein a plurality of corrugated grooves are arranged on the side wall of the pipe body, the pipe body is formed by combining a first pipe blank, a second pipe blank and a third pipe blank from inside to outside, the cross section of the pipe blank is rectangular, and four corners of the cross section of the pipe blank are rounded corners; after the tube blank is sleeved to form a tube body, the upper end and the lower end of the tube blank are welded and fixed. The first tube blank, the second tube blank and the third tube blank are respectively manufactured by bending the first coiled material, the second coiled material and the third coiled material and then welding the two ends. After the first tube blank, the second tube blank and the third tube blank are sleeved, welding seams of the first coiled material, the second coiled material and the third coiled material are staggered.
The first coil size is 11477 +/-1 mm long, 1219+/-2 mm wide and 1.0mm thick; the second coil size is 11486+ -1 mm long, 1219+ -2 mm wide and 1.0mm thick; the third coiled material has the size of 11495 +/-1 mm long, 1219+/-2 mm wide and 1.0mm thick; the circumferential expansion length difference of two adjacent layers of the first coiled material, the second coiled material and the third coiled material is more than or equal to 8mm and less than or equal to 10mm, and the single wave expansion length of the corrugated groove is 325mm.
A process for manufacturing a bellows for nuclear fusion, comprising the steps of:
(1) Selecting materials, namely selecting a first coiled material, a second coiled material and a third coiled material;
(2) Blanking, namely cutting the first coiled material, the second coiled material and the third coiled material into flat plates by using a flat-bed cutting machine, and marking corresponding size marks on each coiled material;
(3) Blanking, namely cutting coiled materials according to the size marks;
(4) Deburring, namely deburring the surface to be welded and the adjacent area;
(5) Drawing a line at the bending position, and drawing a bending line at the required bending position of the third coiled material; the spacing between the bending lines is 1217mm, 2514mm, 3233.5mm, 2514mm and 2016.5mm respectively;
(6) The left end and the right end of the first coiled material, the second coiled material and the third coiled material are respectively welded to form a round tube blank, and after the tube blanks are sleeved in sequence from inside to outside, the corresponding bending lines are used for supporting by a supporting tool, and the round tube blank is supported to a rectangular tube blank;
(7) Welding process connecting pipes, and welding and fixing the three layers of pipe blanks through argon arc welding at the upper and lower ports of the rectangular pipe blanks after square supporting; the welding distance of argon arc welding is 20-40 mm, and the length of the welding seam is not less than 10mm; and the gap between the three layers of tube blanks after argon arc welding is less than or equal to 8mm.
(8) The corrugated pipe is formed,
1) Confirming the required single wave unfolding length and drawing the central line marks of 3 corrugated grooves;
2) Hoisting a tube blank into a forming die of a square wave forming machine, wherein the square wave forming machine comprises an upper straight edge outer limiting die 7, a lower straight edge outer limiting die 8, an inner straight edge bulging die, an inner round corner bulging die and an inner round corner bulging pressing plate, the upper straight edge limiting die 7 and the lower straight edge limiting die 8 are divided into a long straight edge outer limiting die 12 and a short straight edge outer limiting die 18, the long straight edge outer limiting die 12 corresponds to the long straight edge of the tube blank, the short straight edge outer limiting die 12 corresponds to the short straight edge of the tube blank, and the upper and lower outer limiting dies are combined to a gap distance of 105-115 and then abut against the tube blank;
3) Pushing the inner bulging die to 145mm, and stopping, wherein the pushing speed is not higher than 5mm/s;
4) And (3) removing all straight-edge dies, replacing the bulging fillet dies with fillet radii of 570mm, continuing bulging until the fillet radii are 140-145 mm, then completing bulging of the first corrugation, lifting the pipe blank to the center mark position of the second corrugation, performing bulging of the second corrugation, and taking the example as an example, and removing the pipe blank after bulging the third corrugation.
(9) The corrugated pipe is shaped, and an orthopedic machine is used for carrying out orthopedic treatment on the corrugated groove; the specific flow is as follows: hoisting the pressed tube blank, placing the tube blank between an orthopedic driving wheel 24 and a driven wheel 25, supporting the whole tube blank by using a supporting wheel 22, rotating the tube blank by using line friction between a wheel sheet and the tube blank, and taking down the tube blank after finishing the arc angle orthopedic of a small straight edge section at the end part of the tube blank;
(10) Cutting straight edges, drawing lines at two straight edge sections of the corrugated pipe by using mark strokes, cutting the straight edges according to the drawing line positions by using a plasma cutting machine, and polishing and leveling the two ends of the corrugated pipe after the straight edges are cut by using a polishing machine.
The foregoing has described in detail the technical solutions provided by the embodiments of the present invention, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present invention, where the illustrations of the above embodiments are only useful for helping to understand the principles of the embodiments of the present invention; meanwhile, as for the person skilled in the art, according to the embodiments of the present invention, the details of the present invention and the application range may vary, and the present description should not be construed as limiting the present invention.
Claims (2)
1. A process for manufacturing a bellows for nuclear fusion, characterized by: the method comprises the following steps:
(1) Selecting materials, namely selecting a first coiled material, a second coiled material and a third coiled material;
(2) Blanking, namely cutting the first coiled material, the second coiled material and the third coiled material into flat plates by using a flat-bed cutting machine, and marking corresponding size marks on each coiled material;
(3) Blanking, namely cutting coiled materials according to the size marks;
(4) Deburring, namely deburring the surface to be welded and the adjacent area;
(5) Drawing a line at the bending position, and drawing a bending line at the required bending position of the third coiled material;
(6) The left end and the right end of the first coiled material, the second coiled material and the third coiled material are respectively welded to form a round tube blank, and after the tube blanks are sleeved in sequence from inside to outside, the corresponding bending lines are used for supporting by a supporting tool, and the round tube blank is supported to a rectangular tube blank;
(7) Welding process connecting pipes, and welding and fixing the three layers of pipe blanks through argon arc welding at the upper and lower ports of the rectangular pipe blanks after square supporting;
(8) Forming a corrugated pipe, confirming the required single wave unfolding length, hoisting a pipe blank, and pressing a corrugated groove on the side wall of the pipe blank by using a square wave forming machine;
(9) The corrugated pipe is shaped, the pressed pipe blank is hoisted, and the corrugated groove is shaped by using a shape correcting machine;
(10) Cutting straight edges, drawing lines at two straight edge sections of the corrugated pipe by using mark strokes, cutting the straight edges according to the drawing line positions by using a plasma cutting machine, and polishing and leveling the two ends of the corrugated pipe after the straight edges are cut by using a polishing machine.
2. A process for manufacturing a bellows for nuclear fusion as defined in claim 1, wherein: the process of the corrugated pipe molding is that,
(1) Confirming the required single wave unfolding length and drawing the central line marks of 3 corrugated grooves;
(2) Hoisting the tube blank into a forming die of a square wave forming machine, combining an upper limiting die with a lower limiting die to a gap distance of 105-115, and propping against the tube blank;
(3) Pushing the inner bulging die;
(4) And (3) removing all straight-edge dies, replacing the inner bulge fillet dies, continuing bulging, completing bulging of the first corrugation, lifting the pipe blank to the center mark position of the second corrugation, performing bulging of the second corrugation, and taking the third corrugation as an example for bulging, and then taking down the pipe blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011606258.8A CN112903174B (en) | 2020-12-30 | 2020-12-30 | Corrugated pipe for nuclear fusion and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011606258.8A CN112903174B (en) | 2020-12-30 | 2020-12-30 | Corrugated pipe for nuclear fusion and manufacturing process thereof |
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| CN112903174A CN112903174A (en) | 2021-06-04 |
| CN112903174B true CN112903174B (en) | 2024-01-16 |
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| CN114192603A (en) * | 2021-12-14 | 2022-03-18 | 上海航天精密机械研究所 | Method for controlling interlayer redundancy and eliminating interlayer gap of multilayer metal corrugated pipe |
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| CN105964851A (en) * | 2016-06-30 | 2016-09-28 | 吉林大学 | Square-to-round roll forging blank manufacturing method of overall bulging extrusion drive axle housing |
| CN206567372U (en) * | 2017-02-06 | 2017-10-20 | 金永和精工制造股份有限公司 | A kind of bellows bending device |
| CN109654309A (en) * | 2017-10-12 | 2019-04-19 | 孙铭阳 | A kind of welding structure and preparation method thereof of circumferential wave metal bellows |
| CN210267780U (en) * | 2019-06-17 | 2020-04-07 | 沈阳晨光弗泰波纹管有限公司 | Bellows subassembly and solar collector |
| CN111230408A (en) * | 2019-12-31 | 2020-06-05 | 江苏瑞强能源有限公司 | Continuous forming preparation method and system for anti-blocking block |
| CN111438223A (en) * | 2020-04-03 | 2020-07-24 | 西安石油大学 | Integral forming method for rectangular metal corrugated pipe |
| CN111853409A (en) * | 2020-06-24 | 2020-10-30 | 洛阳双瑞特种装备有限公司 | Corrugated pipe with different deformation strengthening layers |
| CN111774458A (en) * | 2020-09-07 | 2020-10-16 | 浙大宁波理工学院 | Forming process of superfine long corrugated pipe |
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