CN112903174A - 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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- CN112903174A CN112903174A CN202011606258.8A CN202011606258A CN112903174A CN 112903174 A CN112903174 A CN 112903174A CN 202011606258 A CN202011606258 A CN 202011606258A CN 112903174 A CN112903174 A CN 112903174A
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- coiled material
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- 230000004927 fusion Effects 0.000 title claims abstract description 16
- 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 100
- 238000003466 welding Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 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
- 238000000465 moulding Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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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
Abstract
A 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 sleeving 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 welding two ends of a first coiled material, a second coiled material and a third coiled material after being bent; the section of the tube blank is rectangular, and four corners of the section of the tube blank are rounded corners; and 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 manufacturing process of a corrugated tube for nuclear fusion, comprising the steps of: (1) selecting materials; (2) blanking; (3) feeding fine materials; (4) deburring; (5) drawing a line at the bending position; (6) supporting a square; (7) welding a process connecting pipe, and (8) forming a corrugated pipe; (9) reshaping the corrugated pipe; (10) and (6) cutting straight edges. The corrugated pipe has large cross-sectional area, is made of multiple 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, is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force, is usually a round pipe and generally has a single-layer structure, but for experiments or purposes such as nuclear fusion and the like, the common corrugated pipe has the problem that the sectional area is small, and cannot be applied to occasions with high pressure or large displacement.
Disclosure of Invention
In order to solve the above problems, the present invention provides the following solutions:
a bellows for nuclear fusion, includes the body of pipe, and the body of pipe lateral wall is arranged and is had a plurality of ripple grooves, its characterized in that: the pipe body is formed by combining a first pipe blank, a second pipe blank and a third pipe blank from an inner sleeve and an outer sleeve, and the first pipe blank, the second pipe blank and the third pipe blank are respectively formed by welding two ends of a first coiled material, a second coiled material and a third coiled material after being bent; the cross section of the tube body is rectangular, and four corners of the cross section of the tube body are rounded corners; and after the first tube blank, the second tube blank and the third tube blank are sleeved to form a tube body, the upper end and the lower end of each tube blank are welded and fixed.
Further, the lengths of the first roll material, the second roll material and the third roll material are gradually increased.
Furthermore, 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 manufacturing process of a corrugated tube 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, using a decoiling machine to decoil the first coiled material, the second coiled material and the third coiled material into flat plates, and marking corresponding size marks on each coiled material;
(3) blanking fine materials, corresponding to the size marks, and cutting the coiled materials;
(4) deburring, namely deburring the surface to be welded and burrs of adjacent areas;
(5) drawing a line at the bending position, and drawing a bending line at the position, required to be bent, of the third coiled material;
(6) the square supporting step, wherein the left end and the right end of the first coiled material, the second coiled material and the third coiled material are welded to form a circular tube blank, the tube blank is sleeved from inside to outside in sequence and then is supported to the square by using a square supporting tool corresponding to the bending line, and the circular tube blank is supported to a rectangular tube blank;
(7) welding a process connecting pipe, and welding and fixing the three layers of pipe blanks through argon arc welding at the upper and lower ports of the rectangular pipe blank after being supported;
(8) forming a corrugated pipe, confirming the required single-wave expansion length, hoisting the pipe blank, and pressing a corrugated groove on the side wall of the pipe blank by using a square wave forming machine;
(9) reshaping the corrugated pipe, namely hoisting the pressed pipe blank, and reshaping the corrugated groove by using a reshaping machine; the specific process comprises the following steps: hoisting the pressed pipe blank, placing the pipe blank between a correcting driving wheel and a driven wheel, supporting the whole pipe blank by using a supporting wheel, and rotating the pipe blank by using the linear friction between a wheel piece and the pipe blank to correct the arc angle of the small straight edge section at the end part of the pipe blank and then taking down the pipe 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 positions of the drawn lines by using a plasma cutting machine, and polishing two end openings of the corrugated pipe after the straight edges are cut to be level by using a polishing machine.
Further, the corrugated pipe forming process comprises the following steps:
(1) confirming the required single wave expansion length and drawing the central line marks of 3 corrugated grooves;
(2) hoisting the pipe blank to a forming die plate of a square wave forming machine, combining an upper limiting die and a lower limiting die to a clearance distance of 105-115 mm, and then propping against the pipe blank;
(3) pushing the inner expansion die;
(4) and removing all the straight-side dies, replacing the inner bulging round-corner die, continuing bulging, finishing bulging of the first corrugation, performing bulging of the second corrugation from the riser blank to the center mark position of the second corrugation, taking the bulging third corrugation as an example, and taking down the tube blank.
The invention has the beneficial effects that:
1. by adopting a multilayer structure, the high-flexibility high-pressure-bearing-capacity high-pressure.
2. Only 1 welding seam guarantees the integrity of the product structure, and the leakage risk is effectively reduced in the nuclear safety device.
3. The side reduces the volume and risk of the nuclear safety device, which may provide a larger cross-sectional area for passage of the conduit than a multilayer circular bellows.
Drawings
FIG. 1 is a top view of a bellows;
FIG. 2 is a schematic cross-sectional view of a corrugation groove;
FIG. 3 is a side view of the bellows;
FIG. 4 is a schematic cross-sectional view of a strut;
FIG. 5 is a schematic top view of the support;
fig. 6 is a schematic illustration of the orthopedic procedure.
In the figure: 1. a first tube blank; 2. a second tube blank; 3. a third tube blank; 4. a corrugated groove; 5. a tube body; 6. the side wall of the tube blank; 7. an upper mold is limited outside the straight edge; 8. the straight edge externally limits the lower die; 9. an inner bulging upper guard plate; 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 bulging pressing plate; 14. a long straight edge inner bulging die; 15. a round-corner inner bulging die; 16. a short straight edge inner bulging die; 17. a short straight edge inner bulging pressing plate; 18. a short straight edge outer limiting die; 19. a round-corner inner expansion pressing plate; 20. a pipe blank; 21. a corrugated pipe 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
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. In the following description, certain specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention will be implemented without these specific details, i.e., those skilled in the art will more effectively describe the nature of their work to others skilled in the art using the description and presentation herein. Furthermore, it should be noted that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the scope of the actual protection. All the raw materials used in the following examples are commercially available products.
Example one
A corrugated pipe for nuclear fusion is a duct corrugated pipe and 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 sleeving 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 fillets; after the first tube blank 1 and the second tube blank 2-level third tube blank 3 are sleeved to form a tube body 5, the upper end and the lower end of the tube body are welded and fixed. The first tube blank 1, the second tube blank 2 and the third tube blank 3 are respectively formed by welding two ends of a first coiled material, a second coiled material and a third coiled material after being bent. 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 material has the size of 11483 +/-1 mm in length, 1219 +/-2 mm in width and 1.5mm in thickness; the second coiled material has the size of 11495 +/-1 mm in length, 1219 +/-2 mm in width and 1.5mm in thickness; the third coiled material has the size of 11507 +/-1 mm in length, 1219 +/-2 mm in width and 1.5mm in thickness; 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 13 mm. The corrugation groove 4 has a single wave development length of 330 mm.
A manufacturing process of a corrugated tube 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, using a decoiling machine to decoil the first coiled material, the second coiled material and the third coiled material into flat plates, and marking corresponding size marks on each coiled material;
(3) blanking fine materials, corresponding to the size marks, and cutting the coiled materials;
(4) deburring, namely deburring the surface to be welded and burrs of adjacent areas;
(5) drawing lines at the bending positions, and drawing bending lines at the bending positions required by the third coiled material, wherein the distances among the bending lines are 1218mm, 2517mm, 3236.5mm, 2517mm and 2018.5mm respectively;
(6) supporting, namely welding the left end and the right end of the first coiled material, the second coiled material and the third coiled material respectively to form a circular tube blank, inspecting the surface of the tube blank, confirming that the surface has no defects such as scratches, collision, pits and the like, cleaning the tube blank, sequentially sleeving the tube blank from inside to outside, taking the longitudinal welding seam of the tube blank on the second layer as a central line when sleeving the tube blank, staggering the longitudinal welding seams of the first layer and the third layer towards two sides respectively, supporting by using a supporting tool corresponding to a bending line after sleeving, and supporting the circular tube blank to a rectangular tube blank;
(8) the corrugated pipe is formed by the steps of forming,
1) confirming the required single wave expansion length and drawing the central line marks of 3 corrugated grooves;
2) hoisting the tube blank to a forming die of a square wave forming machine, wherein the square wave forming machine comprises a straight-side outer limiting upper die 7, a straight-side outer limiting lower die 8, a straight-side inner bulging die, a round-corner inner bulging die and a round-corner inner bulging pressing plate, the straight-side upper limiting die 7 and the straight-side lower limiting die 8 are divided into a long straight-side outer limiting die 12 and a short straight-side outer limiting die 18, the long straight-side outer limiting die 12 corresponds to a long straight side of the tube blank, the short straight-side outer limiting die 12 corresponds to a short straight side of the tube blank, and the upper and lower outer limiting dies are combined to a gap distance of 105-;
3) the inner bulging die is pushed to 145mm and then stopped, and the pushing speed is not higher than 5 mm/s;
4) and removing all straight edge dies, replacing the round corner die with the radius of the round corner of 570mm, continuously expanding to the range of 140-145 mm of the round corner, finishing the expansion of the first corrugation, expanding the second corrugation from the riser blank to the center mark position of the second corrugation, taking the expansion of the third corrugation as an example, and then taking down the tube blank.
(9) Reshaping the corrugated pipe, namely reshaping the corrugated groove by using a reshaping machine, wherein the specific flow is as follows: hoisting the pressed pipe blank, placing the pipe blank between a driving wheel 24 and a driven wheel 25 for reshaping, supporting the whole pipe blank by using a supporting wheel 22, rotating the pipe blank by using the linear friction between a wheel piece and the pipe blank, and taking down the pipe blank after the small straight edge section at the end part of the pipe blank is reshaped;
(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 positions of the drawn lines by using a plasma cutting machine, and polishing two end openings of the corrugated pipe after the straight edges are cut to be level by using a polishing machine.
Example two
A corrugated pipe for nuclear fusion is a cell corrugated pipe and 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 internally and externally laminating a first pipe blank, a second pipe blank and a third pipe blank, the section of each pipe blank is rectangular, and four corners of the section of each pipe blank are round corners; after the pipe blank is sleeved to form a pipe body, the upper end and the lower end of the pipe blank are welded and fixed. The first tube blank, the second tube blank and the third tube blank are respectively formed by welding two ends of a first coiled material, a second coiled material and a third coiled material after being bent. 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 material has the size of 11477 +/-1 mm in length, 1219 +/-2 mm in width and 1.0mm in thickness; the second coiled material has the size of 11486 +/-1 mm in length, 1219 +/-2 mm in width and 1.0mm in thickness; the third coiled material has the size of 11495 +/-1 mm in length, 1219 +/-2 mm in width and 1.0mm in thickness; the expansion length difference of two adjacent layers of the first coiled material, the second coiled material and the third coiled material in the circumferential direction 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 325 mm.
A manufacturing process of a corrugated tube 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, using a decoiling machine to decoil the first coiled material, the second coiled material and the third coiled material into flat plates, and marking corresponding size marks on each coiled material;
(3) blanking fine materials, corresponding to the size marks, and cutting the coiled materials;
(4) deburring, namely deburring the surface to be welded and burrs of adjacent areas;
(5) drawing a line at the bending position, and drawing a bending line at the position, required to be bent, of the third coiled material; the distances among the bending lines are 1217mm, 2514mm, 3233.5mm, 2514mm and 2016.5mm respectively;
(6) the square supporting step, wherein the left end and the right end of the first coiled material, the second coiled material and the third coiled material are welded to form a circular tube blank, the tube blank is sleeved from inside to outside in sequence and then is supported to the square by using a square supporting tool corresponding to the bending line, and the circular tube blank is supported to a rectangular tube blank;
(7) welding a process connecting pipe, and welding and fixing the three layers of pipe blanks through argon arc welding at the upper and lower ports of the rectangular pipe blank after being supported; the welding distance of argon arc welding is 20-40 mm, and the length of a welding seam is not less than 10 mm; gaps among three layers of pipe blanks after argon arc welding are less than or equal to 8 mm.
(8) The corrugated pipe is formed by the steps of forming,
1) confirming the required single wave expansion length and drawing the central line marks of 3 corrugated grooves;
2) hoisting the tube blank to a forming die of a square wave forming machine, wherein the square wave forming machine comprises a straight-side outer limiting upper die 7, a straight-side outer limiting lower die 8, a straight-side inner bulging die, a round-corner inner bulging die and a round-corner inner bulging pressing plate, the straight-side upper limiting die 7 and the straight-side lower limiting die 8 are divided into a long straight-side outer limiting die 12 and a short straight-side outer limiting die 18, the long straight-side outer limiting die 12 corresponds to a long straight side of the tube blank, the short straight-side outer limiting die 12 corresponds to a short straight side of the tube blank, and the upper and lower outer limiting dies are combined to a gap distance of 105-;
3) the inner bulging die is pushed to 145mm and then stopped, and the pushing speed is not higher than 5 mm/s;
4) and removing all straight edge dies, replacing the round corner die with the radius of the round corner of 570mm, continuously expanding to the range of 140-145 mm of the round corner, finishing the expansion of the first corrugation, expanding the second corrugation from the riser blank to the center mark position of the second corrugation, taking the expansion of the third corrugation as an example, and then taking down the tube blank.
(9) Reshaping the corrugated pipe, namely reshaping the corrugated groove by using a reshaping machine; the specific process comprises the following steps: hoisting the pressed pipe blank, placing the pipe blank between a driving wheel 24 and a driven wheel 25 for reshaping, supporting the whole pipe blank by using a supporting wheel 22, rotating the pipe blank by using the linear friction between a wheel piece and the pipe blank, and taking down the pipe blank after the small straight edge section at the end part of the pipe blank is reshaped;
(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 positions of the drawn lines by using a plasma cutting machine, and polishing two end openings of the corrugated pipe after the straight edges are cut to be level by using a polishing machine.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments above are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for those skilled in the art, there may be variations in the embodiments, specific implementations and application ranges according to the present invention, and in summary, the present disclosure should not be construed as limiting the present invention.
Claims (4)
1. A bellows for nuclear fusion, includes the body of pipe, and the body of pipe lateral wall is arranged and is had a plurality of ripple grooves, its characterized in that: the pipe body is formed by sleeving 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 welding two ends of a first coiled material, a second coiled material and a third coiled material after being bent; the cross section of the tube body is rectangular, and four corners of the cross section of the tube body are rounded corners; and after the first tube blank, the second tube blank and the third tube blank are sleeved to form a tube body, the upper end and the lower end of each tube blank are welded and fixed.
2. A bellows for nuclear fusion as claimed in claim 1, wherein: 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.
3. A manufacturing process of corrugated pipes for nuclear fusion is characterized in that: 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, using a decoiling machine to decoil the first coiled material, the second coiled material and the third coiled material into flat plates, and marking corresponding size marks on each coiled material;
(3) blanking fine materials, corresponding to the size marks, and cutting the coiled materials;
(4) deburring, namely deburring the surface to be welded and burrs of adjacent areas;
(5) drawing a line at the bending position, and drawing a bending line at the position, required to be bent, of the third coiled material;
(6) the square supporting step, wherein the left end and the right end of the first coiled material, the second coiled material and the third coiled material are welded to form a circular tube blank, the tube blank is sleeved from inside to outside in sequence and then is supported to the square by using a square supporting tool corresponding to the bending line, and the circular tube blank is supported to a rectangular tube blank;
(7) welding a process connecting pipe, and welding and fixing the three layers of pipe blanks through argon arc welding at the upper and lower ports of the rectangular pipe blank after being supported;
(8) forming a corrugated pipe, confirming the required single-wave expansion length, hoisting the pipe blank, and pressing a corrugated groove on the side wall of the pipe blank by using a square wave forming machine;
(9) reshaping the corrugated pipe, namely hoisting the pressed pipe blank, and reshaping the corrugated groove by using a reshaping 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 positions of the drawn lines by using a plasma cutting machine, and polishing two end openings of the corrugated pipe after the straight edges are cut to be level by using a polishing machine.
4. A manufacturing process of a bellows for nuclear fusion as claimed in claim 3, characterized in that: the flow of the corrugated pipe molding is as follows,
(1) confirming the required single wave expansion length and drawing the central line marks of 3 corrugated grooves;
(2) hoisting the pipe blank to a forming die of a square wave forming machine, combining an upper limiting die and a lower limiting die to a clearance distance of 105-115, and then propping against the pipe blank;
(3) pushing the inner bulging die;
(4) and removing all the straight-side dies, replacing the inner bulging round-corner die, continuing bulging, finishing bulging of the first corrugation, performing bulging of the second corrugation from the riser blank to the center mark position of the second corrugation, taking the bulging third corrugation as an example, and taking down the tube 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 true CN112903174A (en) | 2021-06-04 |
| CN112903174B CN112903174B (en) | 2024-01-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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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