CN103692163B - For the prebending process that high-strength steel material pressure vessel shell ring rolls - Google Patents
For the prebending process that high-strength steel material pressure vessel shell ring rolls Download PDFInfo
- Publication number
- CN103692163B CN103692163B CN201310696217.6A CN201310696217A CN103692163B CN 103692163 B CN103692163 B CN 103692163B CN 201310696217 A CN201310696217 A CN 201310696217A CN 103692163 B CN103692163 B CN 103692163B
- Authority
- CN
- China
- Prior art keywords
- bending
- round template
- shell ring
- card round
- card
- Prior art date
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
Abstract
The present invention relates to the novel prebending process rolled for high-strength steel material pressure vessel shell ring, belong to sheet material die mould field；Concrete technology is as follows: 1), pre-bending amount increased to 850mm by traditional 650mm, use hydraulic press and pre-bend mould that pre-bight portion carries out pre-bending, described pre-bending partial-length 750mm；2), utilizing card round template to check, the pre-bight portion of 750mm and card round template internal clearance are not more than 1mm；3), residue 100mm length be pre-bending changeover portion, processing controls pre-bending changeover portion and card round template internal clearance and is linearly incremented by；4), adopting the inspection of card round template, pre-bending changeover portion and maximal clearance in card round template are less than 20mm；It provides the benefit that: precision improves, efficiency improves: after adopting this novel prebending process method, and the every section of shell ring processing of above two-step only needs 0.2 day and 1 day respectively, and shell ring is round as a ball, school circle two procedures man-hour shortens 80%.
Description
The field of inventionthe invention relate to the novel prebending process rolled for high-strength steel material pressure vessel shell ring, belong to sheet material die mould field.
Background technology makes for high-strength steel material (HG785 etc.) diameter 1.8m～2.8m pressure vessel shell ring, conventional fabrication processes adopts hydraulic press to carry out pre-bending (pre-bending length 650mm), and check after qualified (gap is not more than 1mm) through card round template, use three rolls plate bending machine rolled forming.Because of equipment, technique restriction, adopting this kind of processing technology, the remained straight edge section that there is 100～150mm near pre-bending side cannot be suppressed, and high-strength steel springback capacity is big, forming difficulty, and this straight section is carried out school circle only by next procedure by assembler fairing by flame by rule of thumb.Adopting the high-strength steel material pressure vessel shell ring that this kind of process makes on inspection, card round template gap reaches 3mm, and cannot be corrected further by fairing by flame, and the overall precision having had a strong impact on building course controls.Therefore, the precision controlling that high-strength steel material pressure vessel shell ring makes is the difficult point made.
Summary of the invention for above-mentioned technical problem, the invention provides that a kind of method is simple, saves cost, the novel prebending process rolled for high-strength steel material pressure vessel shell ring that formed precision is high.
For achieving the above object, the adopted technical solution is that: the novel prebending process rolled for high-strength steel material pressure vessel shell ring, concrete technology is as follows: 1), pre-bending amount increases to 850mm by traditional 650mm, use hydraulic press and pre-bend mould that pre-bight portion carries out pre-bending, described pre-bending partial-length 750mm；2), utilizing card round template to check, the pre-bight portion of 750mm and card round template internal clearance are not more than 1mm；3), residue 100mm length be pre-bending changeover portion, processing controls pre-bending changeover portion and card round template internal clearance and is linearly incremented by；4), adopting the inspection of card round template, pre-bending changeover portion and maximal clearance in card round template are less than 20mm.
For the novel prebending process that high-strength steel material pressure vessel shell ring rolls, it provides the benefit that: precision improves: after the circle of assembler school, adopts card round template to test, and traditional handicraft model gap is 3mm, new technology model gap is not more than 1mm, and the circularity of shell ring is greatly improved；Efficiency improves: traditionally, and steel adds every section of shell ring of round as a ball operation to be needed 0.5 day, and in the sired results sequence of assembler school, every section of shell ring needs 5 days；And after adopting this novel prebending process method, the every section of shell ring processing of above two-step only needs 0.2 day and 1 day respectively, shell ring is round as a ball, school circle two procedures man-hour shortens 80%；It addition, also have that method is simple, save man-hour, save cost, increase economic efficiency, overall appearance quality good and without carrying out fairing by flame, the not advantage such as the mechanical property of attacking material.
Accompanying drawing explanation
Fig. 1 is the novel prebending process figure rolled for high-strength steel material pressure vessel shell ring.
Accompanying drawing labelling is as follows: 1, pre-bight portion, and 2, card round template, 3, pre-bending changeover portion, 4, pre-bight portion and card round template internal clearance, 5, pre-bending changeover portion and card round template internal clearance.
Detailed description of the invention
It is described as follows in conjunction with accompanying drawing:
For the novel prebending process that high-strength steel material pressure vessel shell ring rolls, concrete technology is as follows: 1), pre-bending amount increased to 850mm by traditional 650mm, use hydraulic press and pre-bend mould that pre-bight portion 1 carries out pre-bending, described pre-bight portion 1 length 750mm；2), utilizing card round template 2 to check, the pre-bight portion of 750mm and card round template internal clearance 4 are not more than 1mm；3), residue 100mm length be pre-bending changeover portion 3, processing controls pre-bending changeover portion and card round template internal clearance and is linearly incremented by；4), adopting card round template 2 to check, pre-bending changeover portion and card round template internal clearance 5 are not more than 20mm.
Claims (1)
1. the prebending process rolled for high-strength steel material pressure vessel shell ring, it is characterized in that concrete technology is as follows: 1), pre-bending amount increases to 850mm by traditional 650mm, use hydraulic press and pre-bend mould that pre-bight portion carries out pre-bending, described pre-bending partial-length 750mm；2), utilizing card round template to check, the pre-bight portion of 750mm and card round template internal clearance are not more than 1mm；3), residue 100mm length be pre-bending changeover portion, processing controls pre-bending changeover portion and card round template internal clearance and is linearly incremented by；4), adopting the inspection of card round template, pre-bending changeover portion and maximal clearance in card round template are less than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696217.6A CN103692163B (en) | 2013-12-18 | 2013-12-18 | For the prebending process that high-strength steel material pressure vessel shell ring rolls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696217.6A CN103692163B (en) | 2013-12-18 | 2013-12-18 | For the prebending process that high-strength steel material pressure vessel shell ring rolls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103692163A CN103692163A (en) | 2014-04-02 |
| CN103692163B true CN103692163B (en) | 2016-07-06 |
Family
ID=50353914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310696217.6A Active CN103692163B (en) | 2013-12-18 | 2013-12-18 | For the prebending process that high-strength steel material pressure vessel shell ring rolls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103692163B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2502519A1 (en) * | 1981-03-30 | 1982-10-01 | Lerolland Marcel | Method of fabricating large half round shell - entails fixing thin plate to mandrel to receive carcass to which it is fixed and then released from mandrel |
| CN101069908A (en) * | 2007-06-16 | 2007-11-14 | 王行山 | Process for board-rolling machine to make roll |
| CN101585054A (en) * | 2009-07-07 | 2009-11-25 | 倪加明 | Curling process of hydrogenation reaction kettle barrel |
| CN101856783A (en) * | 2010-07-13 | 2010-10-13 | 中国化学工程第四建设公司 | Integral manufacturing and mounting method of large aluminum alloy stock bin |
| CN101941139A (en) * | 2010-09-02 | 2011-01-12 | 中信重工机械股份有限公司 | Welding and assembling method for huge mining mill barrel |
| CN102785057A (en) * | 2011-05-16 | 2012-11-21 | 中国二十冶集团有限公司 | Method for rolling steel plate into cylinder free from prebending |
| CN103600211A (en) * | 2013-12-06 | 2014-02-26 | 沈阳航天新光集团有限公司 | Preparation method of canister launcher |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3848185B2 (en) * | 2002-03-15 | 2006-11-22 | カルソニックカンセイ株式会社 | Bulge processing method and bulge processing apparatus |
-
2013
- 2013-12-18 CN CN201310696217.6A patent/CN103692163B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2502519A1 (en) * | 1981-03-30 | 1982-10-01 | Lerolland Marcel | Method of fabricating large half round shell - entails fixing thin plate to mandrel to receive carcass to which it is fixed and then released from mandrel |
| CN101069908A (en) * | 2007-06-16 | 2007-11-14 | 王行山 | Process for board-rolling machine to make roll |
| CN101585054A (en) * | 2009-07-07 | 2009-11-25 | 倪加明 | Curling process of hydrogenation reaction kettle barrel |
| CN101856783A (en) * | 2010-07-13 | 2010-10-13 | 中国化学工程第四建设公司 | Integral manufacturing and mounting method of large aluminum alloy stock bin |
| CN101941139A (en) * | 2010-09-02 | 2011-01-12 | 中信重工机械股份有限公司 | Welding and assembling method for huge mining mill barrel |
| CN102785057A (en) * | 2011-05-16 | 2012-11-21 | 中国二十冶集团有限公司 | Method for rolling steel plate into cylinder free from prebending |
| CN103600211A (en) * | 2013-12-06 | 2014-02-26 | 沈阳航天新光集团有限公司 | Preparation method of canister launcher |
Non-Patent Citations (1)
| Title |
|---|
| Φ3800甲醇合成塔的研制;郑国光，于艳芳，王英德;《石油和化工设备》;20090228;22-25 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103692163A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103894436B (en) | A kind of reciprocating extrusion device and processing method strengthening magnesium-alloy tube | |
| CN102527897A (en) | Forging method for thin-walled step short sleeve type main shaft flange of water turbine | |
| CN104307912B (en) | A kind of variable conduit extrusion rolling building mortion and manufacturing process thereof | |
| CN103264265A (en) | Extrusion forming process for brake wheel | |
| CN201768810U (en) | Bending die for wiring terminal stamping parts of low-voltage electrical apparatus | |
| CN104801578A (en) | Bending method for three-roller plate bending machine | |
| CN104014995A (en) | Method for forging bow shackle | |
| CN103692163B (en) | For the prebending process that high-strength steel material pressure vessel shell ring rolls | |
| CN202006239U (en) | Plate bend die | |
| CN104209407A (en) | Automotive chassis stamping die | |
| CN204672790U (en) | A kind of blanking die for bender | |
| CN204620715U (en) | A kind of system being applicable to production in enormous quantities multiple section shaped metal wire rod | |
| CN102896178A (en) | Cold processing method of metal sheet corner piece and special metal sheet corner forming machine therefor | |
| CN202377323U (en) | Simple U-shaped steel member molding machine | |
| CN104815881A (en) | Bending method for three-roller plate bending machine | |
| CN111151652B (en) | Bending processing method of duplex turbine blade locking plate | |
| CN106270141A (en) | A kind of manufacturing process distorting stretch bending section bar | |
| CN203936191U (en) | A kind of novel culvert corrugated steel punch | |
| CN204208893U (en) | A kind of molding roller of cold-rolling equipment | |
| CN104971963A (en) | Slab forging process | |
| JP2016131984A (en) | Press molding method | |
| CN203936138U (en) | The pre-descaling device of a kind of Mechanical Crushing | |
| CN204975003U (en) | Water container for water heater thin wall fine blanking mould for head | |
| CN204338731U (en) | For reducing hot forming steel plate drift dull die structure | |
| CN109500097A (en) | A method of reducing cold-rolled process 1200mm precise stainless steel strip convexity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |