CN1586758A - Method for producing integrally formed disc shape corrugated pipe - Google Patents
Method for producing integrally formed disc shape corrugated pipe Download PDFInfo
- Publication number
- CN1586758A CN1586758A CN 200410060484 CN200410060484A CN1586758A CN 1586758 A CN1586758 A CN 1586758A CN 200410060484 CN200410060484 CN 200410060484 CN 200410060484 A CN200410060484 A CN 200410060484A CN 1586758 A CN1586758 A CN 1586758A
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- Prior art keywords
- bellows
- corrugated pipe
- dish
- shaped
- forming
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title description 6
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 11
- 238000000465 moulding Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000703 high-speed centrifugation Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
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- Diaphragms And Bellows (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The integral forming process of producing disc-shape corrugated pipe has the technological path including making forming mold, cutting material, preparing corrugated pipe blank and integral hydraulic forming. The forming mold consists of upper mold cover, middle mold sheet and lower mold cover, and the middle mold sheet consists of one pair of sheets connected via positioning pin shaft. The integral hydraulic forming is completed in an oil press. The integrally formed corrugated pipe without welding seam has bearing capacity, stability and fatigue resistance obviously higher than those of welded corrugated pipe. The present invention may be used widely for various pumps, reactors, centrifugal compressor, etc. in various industries.
Description
Technical field:
The present invention relates to mechanically-sealing apparatus, pipeline fittings technical field, a kind of global formation dish bellows preparation method.
Background technology:
At present the metal bellows of welding fabrication is widely used in the mechanical seal of equipment such as all kinds of pumps, reactor, high speed centrifugation compressor of shipbuilding industry, petroleum chemical industry, refrigeration industry, be applied to simultaneously in the pipeline and equipment of aerospace industry, with the displacement of suction line (equipment) with reduce the vibration transmission of equipment, mainly work sealing and the vibration and noise reducing effect.The manufacturing of the metal bellows of welding fabrication both at home and abroad at present all is to adopt the welding method moulding, is pressed into Circular Plate earlier, forms girth joint at crest, trough place then and forms bellows.But (be generally 3～5mm) little because the wave height of welding bellows, the pitch of waves, wave number many (20～30 ripples), shortcoming such as the ubiquity security reliability is poor, manufacturing process complexity, workmanship are poor, percent defective height, production efficiency are low can not satisfy the instructions for use of equipment.Data at home and abroad shows that not seeing has the report that adopts whole shaped by fluid pressure method to make.
Summary of the invention:
In order to solve the problem of above-mentioned existence, the invention provides a kind of global formation dish bellows preparation method, to overcome the deficiency of welded metal bellow, improve the security reliability of dish-shaped bellows.
The present invention adopts following technical scheme to realize:
Described global formation dish bellows preparation method, its process route that adopts is: mould manufactures and designs-blanking-bellows pipe preparation-whole shaped by fluid pressure; Mould is made up of upper mould cover, middle matrix, following die cap, and middle matrix adopts digital control processing to become required bellows-shaped, and middle matrix adopts and divides the half hitch structure, locatees matrix in the pattern connection by a pair of brace by bearing pin; This dish bellows carries out whole shaped by fluid pressure on hydraulic press.
Described global formation dish bellows, the crest of its bellows, trough place are excessive by very little circular arc, and the corrugated sidewalls shape can be designed to multi-section circular arc as required and form.
Owing to adopted technique scheme, the present invention to have following superiority:
The present invention is by mould reasonable in design, select proper molding, adopted the dish-shaped bellows process for making of hydraulic pressure global formation, overcome the deficiency of welded metal bellow, security reliability and other serviceabilities of dish-shaped bellows have been improved greatly, its serviceability is apparently higher than welded metal bellow simultaneously, compare with similar welded metal bellow, owing to do not have weld seam at crest and trough place, its bearing capacity, stability and fatigue behaviour are apparently higher than welded metal bellow, can realize simultaneously real multilayer dish bellows structure, satisfy the instructions for use of equipment in different operating modes.
Description of drawings:
Fig. 1 is the structural representation of global formation dish bellows;
Fig. 2 is the I enlarged drawing of global formation dish bellows.
Specific embodiment:
The present invention is theoretical and stress metal process principle according to metal plastic deformation, under the liquid internal pressure effect, the geometry of sealed at both ends bellows pipe is changed, be the waist drum shape, with the cooperation of axial force under, pipe produces slowly and regularly solid-state flowing, make and lose original equilbrium position between metallic atom, produced new equilbrium position, produced plastic deformation, rely on and adopt digital control processing to become the effect of the middle matrix of required bellows-shaped, and then formed needed bellows-shaped.
The process route that the present invention adopts is:
Mould manufactures and designs-blanking-bellows pipe preparation-whole shaped by fluid pressure.
The waveform parameter of dish bellows is:
Ripple root diameter (mm): 50～600
Wave height (mm:8～15
The pitch of waves (mm): 3～8
The number of plies: 1～3
Thickness (mm): 0.12～0.3
Wave number: 10～30
Bellows material: 0Cr18Ni9
As shown in Fig. 1,2, the crest of dish-shaped bellows, trough place do not have weld seam, and be excessive by very little circular arc, and the corrugated sidewalls shape can be designed to multi-section circular arc as required and form.
Whole shaped by fluid pressure carries out on hydraulic press, mould is made up of upper mould cover, middle matrix, following die cap, and middle matrix adopts digital control processing to become required bellows-shaped, for ease of dismounting, middle matrix should adopt branch half hitch structure, adopts a pair of brace by matrix connectivity problem in the pattern solution of bearing pin location; Briquetting pressure when wanting strict control moulding during whole shaped by fluid pressure, along with the progressively formation of bellows wave height, the corresponding minimizing of draw ratio produces post unstability degree and reduces gradually, finishes whole forming process when being not enough to produce the post unstability when reaching.
The present invention adopts the method for hydraulic pressure global formation, has successfully produced the dish-shaped bellows that meets design requirement, and test shows that its bearing capacity, stability and fatigue behaviour are apparently higher than welded metal bellow.The present invention has improved security reliability and other serviceabilities of such metal bellows greatly, can be widely used in being applied to simultaneously in the pipeline and equipment of aerospace industry in the mechanical seal of equipment such as all kinds of pumps, reactor, high speed centrifugation compressor of shipbuilding industry, petroleum chemical industry, refrigeration industry.
Claims (2)
1, a kind of global formation dish bellows preparation method is characterized in that: described bellows preparation method, and its process route that adopts is: mould manufactures and designs-blanking-bellows pipe preparation-whole shaped by fluid pressure; Mould is made up of upper mould cover, middle matrix, following die cap, and middle matrix adopts digital control processing to become required bellows-shaped, and middle matrix adopts and divides the half hitch structure, locatees matrix in the pattern connection by a pair of brace by bearing pin; This dish bellows carries out whole shaped by fluid pressure on hydraulic press.
2, global formation according to claim 1 dish bellows is characterized in that: the crest of this bellows, trough place are excessive by very little circular arc, and the corrugated sidewalls shape can be designed to multi-section circular arc as required and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100604845A CN1298453C (en) | 2004-08-31 | 2004-08-31 | Method for producing integrally formed disc shape corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100604845A CN1298453C (en) | 2004-08-31 | 2004-08-31 | Method for producing integrally formed disc shape corrugated pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1586758A true CN1586758A (en) | 2005-03-02 |
| CN1298453C CN1298453C (en) | 2007-02-07 |
Family
ID=34603473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100604845A Active CN1298453C (en) | 2004-08-31 | 2004-08-31 | Method for producing integrally formed disc shape corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1298453C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101564743B (en) * | 2009-06-05 | 2011-03-30 | 北京兴达波纹管有限公司 | Precise corrugated pipe forming machine |
| CN103252394A (en) * | 2012-02-16 | 2013-08-21 | 泰州华腾管道设备有限公司 | Corrugated pipe hydraulic molding machine |
| CN103611768A (en) * | 2012-11-29 | 2014-03-05 | 重庆帆城科技有限公司 | Hydraulic forming technology of tube blank of small-sized corrugated tube and forming die sheet special for tube blank of small-sized corrugated tube |
| CN107013766A (en) * | 2017-05-25 | 2017-08-04 | 江苏省埃迪机电设备实业有限公司 | A kind of waveform is corrugated metal bellows |
| CN114633078A (en) * | 2022-04-11 | 2022-06-17 | 楚天科技股份有限公司 | Method for manufacturing metal corrugated pipe |
| CN117759794A (en) * | 2024-02-22 | 2024-03-26 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069316U (en) * | 1990-02-28 | 1991-01-16 | 朱宝山 | Bellows processing device |
| CN2130614Y (en) * | 1992-07-22 | 1993-04-28 | 金作荣 | Bellows former |
| JPH08141660A (en) * | 1994-11-22 | 1996-06-04 | Masaaki Kawahara | Bellow tube and its production |
| CN2310914Y (en) * | 1997-09-29 | 1999-03-17 | 曹建钢 | Bellows |
-
2004
- 2004-08-31 CN CNB2004100604845A patent/CN1298453C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101564743B (en) * | 2009-06-05 | 2011-03-30 | 北京兴达波纹管有限公司 | Precise corrugated pipe forming machine |
| CN103252394A (en) * | 2012-02-16 | 2013-08-21 | 泰州华腾管道设备有限公司 | Corrugated pipe hydraulic molding machine |
| CN103611768A (en) * | 2012-11-29 | 2014-03-05 | 重庆帆城科技有限公司 | Hydraulic forming technology of tube blank of small-sized corrugated tube and forming die sheet special for tube blank of small-sized corrugated tube |
| CN103611768B (en) * | 2012-11-29 | 2016-08-03 | 重庆帆城科技有限公司 | A kind of small bellows pipe hydroforming process and special molding module |
| CN107013766A (en) * | 2017-05-25 | 2017-08-04 | 江苏省埃迪机电设备实业有限公司 | A kind of waveform is corrugated metal bellows |
| CN114633078A (en) * | 2022-04-11 | 2022-06-17 | 楚天科技股份有限公司 | Method for manufacturing metal corrugated pipe |
| CN117759794A (en) * | 2024-02-22 | 2024-03-26 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
| CN117759794B (en) * | 2024-02-22 | 2024-05-24 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1298453C (en) | 2007-02-07 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LUOYANG SHUANGRUI STEEL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NO.CHINA SHIPBUILDING INDUSTRY GROUP CO.LTD. 725 INSTITUTE Effective date: 20081031 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20081031 Address after: No. 32 Binhe Road, hi tech Development Zone, Henan, Luoyang Patentee after: Luoyang Shuangrui Special Steel Technology Co.,Ltd. Address before: No. 21, Xiyuan Road, Luoyang, Henan Patentee before: CHINA SHIPBUILDING INDUSTRY CORPORATION NO.725 Research Institute |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090206 Address after: No. 32 Binhe Road, hi tech Development Zone, Henan, Luoyang Patentee after: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. Address before: No. 32 Binhe Road, hi tech Development Zone, Henan, Luoyang Patentee before: Luoyang Shuangrui Special Steel Technology Co.,Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: LUOYANG SHUANGRUI SPECIAL EQUIPMENTS CO., LTD. Free format text: FORMER OWNER: LUOYANG SHUANGRUI STEEL TECHNOLOGY CO., LTD. Effective date: 20090206 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |