CN103331343A - Tapered coiling technology for high-strength large-size plate - Google Patents
Tapered coiling technology for high-strength large-size plate Download PDFInfo
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- CN103331343A CN103331343A CN2013102650353A CN201310265035A CN103331343A CN 103331343 A CN103331343 A CN 103331343A CN 2013102650353 A CN2013102650353 A CN 2013102650353A CN 201310265035 A CN201310265035 A CN 201310265035A CN 103331343 A CN103331343 A CN 103331343A
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- fanning strip
- roll
- reeling machine
- veneer reeling
- head end
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Abstract
The invention discloses a tapered coiling technology for a high-strength large-size plate, which comprises the following steps of: (1) making equant marks on a to-be-coiled fan-shaped plate; (2) causing an upper roller of a plate-coiling machine to be lower than a theoretical distance of an upper surface of the fan-shaped plate when a big-head end of the fan-shaped plate is coiled and causing the upper roller of the plate-coiling machine to be lower than the theoretical distance of the upper surface of the fan-shaped plate when a small-head end of the fan-shaped plate is coiled; (3) calculating a resilience value of the fan-shaped plate; and (4) successively coiling the big-head end and the small-head end in sequence. Compared with the prior art, the technology provided by the invention has the advantages that a joint of the big-head end and the small-head end is smoothly transited; the problem that a design demand is not met because of the insufficient accuracy caused by the overlong fan-shaped plate is solved; and meanwhile, the problems that an upper rolling bearing and a supporting bearing of the plate-coiling machine are easily abraded and a roller wheel of the plate-coiling machine is seriously damaged by adopting the traditional rotary feeding coiling technology are avoided. Therefore, the tapered coiling technology for the high-strength large-size plate has the advantages that the products manufactured by adopting the technology are ultrahigh in precision, the products are once formed in the subsequent wholly splicing, assembling and centering, and the staggered joint quantity is small.
Description
Technical field
The present invention relates to the tapering rolling technology of high strength large scale plate body.
Background technology
AP1000 nuclear power containment two phase stainless steel water tank CB20 cone module need reach installation requirement by a fanning strip is rolled, because this fanning strip adopts U.S. mark two phase stainless steel material, this YIELD STRENGTH reaches more than the 450MPa, yield strength than common material is high a lot, if the swivel feeding rolling technology before adopting, very easily make topping roll bearing and the supporting abrasion of veneer reeling machine, the little end surface of conical plate that contact with two gear wheels simultaneously is because stressed bigger, with the process of gear wheel mutual extrusion in can seriously decrease the running roller that encircles veneer reeling machine.On the other hand, because conical plate length oversize (length reaches 8452mm), for reaching non-active purpose of design, this circular platform type submodule needs to dock with the nuclear island upper cover is accurate, adopt traditional swivel feeding rolling technology, repeatedly test and to reach designing requirement through us, and the producer of existing equipment also can't provide method and the technology that rolls this series products.In view of this, we need utilize existing equipment that the rolling technology of this series products is researched and developed as far as possible, to meet design requirement.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of tapering rolling technology of high strength large scale plate body is provided, can realize that on the basis of existing equipment the tapering of high strength large scale plate body rolls.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: the tapering rolling technology of high strength large scale plate body is characterized in that may further comprise the steps: 1) prefabricated waiting rolled the fanning strip five equilibrium and do the five equilibrium mark at position of halving; To be lower than the theoretical of described fanning strip upper surface be S to the veneer reeling machine top roll when 2) determining to roll described fanning strip stub end according to designing requirement
1, and to roll the described fanning strip microcephaly theoretical that the veneer reeling machine top roll is lower than described fanning strip upper surface when holding be S
23) springback capacity of the described fanning strip of calculating is S; 4) roll stub end: described fanning strip is put into veneer reeling machine, make branch marks such as article one on the described fanning strip be positioned at veneer reeling machine top roll center line under, when rolling major part, the distance that makes the veneer reeling machine top roll be lower than described fanning strip stub end upper surface is S1+S, it is 3/4ths of fanning strip length that stub end rolls length, to roll width be half of distance between the described five equilibrium mark in both sides to the left and right along the described five equilibrium mark of article one, after finishing mobile described fanning strip make branch mark such as second be positioned at veneer reeling machine top roll center line under, repeat the above-mentioned process that rolls until branch marks such as the last item; 5) roll little head end: described fanning strip is put into veneer reeling machine, make branch marks such as article one on the described fanning strip be positioned at veneer reeling machine top roll center line under, when rolling the microcephaly, making the veneer reeling machine top roll be lower than the distance that described fanning strip microcephaly holds upper surface is S2+S, it is 1/2nd of fanning strip length that little head end rolls length, to roll width be half of distance between the described five equilibrium mark in both sides to the left and right along the described five equilibrium mark of article one, after finishing mobile described fanning strip make branch mark such as second be positioned at veneer reeling machine top roll center line under, repeat the above-mentioned process that rolls until branch marks such as the last item.
Technology of the present invention is by being taken up in order of priority stub end and little head end the method that rolls, and when holding, stub end and microcephaly have intersection rolling, make the joint portion of stub end and little head end seamlessly transit, solved because the oversize precision that causes of fanning strip is not enough, can't reach the problem of designing requirement; Simultaneously, the present invention is divided into some five equilibriums with stub end and little head end, each five equilibrium is all rolled separately, namely finished rolling of concentric reducer like a cork, avoided adopting the swivel feeding rolling technology again in the past, very easily make topping roll bearing and the supporting abrasion of veneer reeling machine, the little end surface of conical plate that contact with two gear wheels simultaneously is because stressed bigger, with the process of gear wheel mutual extrusion in can serious problem of decreasing the running roller that encircles veneer reeling machine.Therefore, the present invention can reduce topping roll bearing and the supporting abrasion of veneer reeling machine, and avoids decreasing the running roller of ring veneer reeling machine, and it is high that the product of making through this technology has the precision of manufacturing, in integral assembling group centering once-forming afterwards, the advantage that the mismatch amount is little.
In order to obtain better technique effect, further technical measures also comprise: after rolling end, compare the curvature of stub end and little head end respectively with model, if any deviation, adjust the distance between top roll and the described fanning strip, again roll by described step 4 and described step 5, until reaching designing requirement.By above-mentioned inspection and rolling again, guarantee that the product that uses this technology to make meets design requirement.
As preferably, the distance described in the above-mentioned steps 1 between the five equilibrium mark is less than the distance between the two lower roll axis.
Compared with prior art, technology of the present invention is by being taken up in order of priority stub end and little head end the method that rolls, and when holding, stub end and microcephaly have intersection rolling, make the joint portion of stub end and little head end seamlessly transit, solved because the oversize precision that causes of fanning strip is not enough, can't reach the problem of designing requirement; Simultaneously, the present invention is divided into some five equilibriums with stub end and little head end, each five equilibrium is all rolled separately, avoided adopting the swivel feeding rolling technology in the past, very easily make topping roll bearing and the supporting abrasion of veneer reeling machine, the little end surface of conical plate that contact with two gear wheels simultaneously is because stressed bigger, with the process of gear wheel mutual extrusion in can serious problem of decreasing the running roller that encircles veneer reeling machine.Therefore, the present invention can avoid topping roll bearing and the supporting abrasion of veneer reeling machine, and avoids decreasing the running roller of ring veneer reeling machine, and it is high that the product of making through this technology has the precision of manufacturing, in integral assembling group centering once-forming afterwards, the advantage that the mismatch amount is little.
The specific embodiment
The tapering rolling technology of embodiment 1 high strength large scale plate body may further comprise the steps: 1) prefabricated waiting rolled the fanning strip five equilibrium and do the five equilibrium mark at position of halving, the distance between the five equilibrium mark is less than the distance between the two lower roll axis; To be lower than the theoretical of described fanning strip upper surface be S to the veneer reeling machine top roll when 2) determining to roll described fanning strip stub end according to designing requirement
1, and to roll the described fanning strip microcephaly theoretical that the veneer reeling machine top roll is lower than described fanning strip upper surface when holding be S
23) springback capacity of the described fanning strip of calculating is S; 4) roll stub end: described fanning strip is put into veneer reeling machine, make branch marks such as article one on the described fanning strip be positioned at veneer reeling machine top roll center line under, when rolling major part, the distance that makes the veneer reeling machine top roll be lower than described fanning strip stub end upper surface is S1+S, it is 3/4ths of fanning strip length that stub end rolls length, to roll width be half of distance between the described five equilibrium mark in both sides to the left and right along the described five equilibrium mark of article one, after finishing mobile described fanning strip make branch mark such as second be positioned at veneer reeling machine top roll center line under, repeat the above-mentioned process that rolls until branch marks such as the last item; 5) roll little head end: described fanning strip is put into veneer reeling machine, make branch marks such as article one on the described fanning strip be positioned at veneer reeling machine top roll center line under, when rolling the microcephaly, the distance that makes the veneer reeling machine top roll be lower than described fanning strip stub end upper surface is S2+S, it is 1/2nd of fanning strip length that little head end rolls length, to roll width be half of distance between the described five equilibrium mark in both sides to the left and right along the described five equilibrium mark of article one, after finishing mobile described fanning strip make branch mark such as second be positioned at veneer reeling machine top roll center line under, repeat the above-mentioned process that rolls until branch marks such as the last item; 6) compare the curvature of stub end and little head end respectively with model, if any deviation, adjust the distance between top roll and the described fanning strip, roll again by described step 4 and described step 5, until reaching designing requirement.
Claims (3)
1. the tapering rolling technology of high strength large scale plate body is characterized in that may further comprise the steps: 1) prefabricated waiting rolled the fanning strip five equilibrium and do the five equilibrium mark at position of halving; To be lower than the theoretical of described fanning strip upper surface be S to the veneer reeling machine top roll when 2) determining to roll described fanning strip stub end according to designing requirement
1, and to roll the described fanning strip microcephaly theoretical that the veneer reeling machine top roll is lower than described fanning strip upper surface when holding be S
23) springback capacity of the described fanning strip of calculating is S; 4) roll stub end: described fanning strip is put into veneer reeling machine, make branch marks such as article one on the described fanning strip be positioned at veneer reeling machine top roll center line under, when rolling major part, the distance that makes the veneer reeling machine top roll be lower than described fanning strip stub end upper surface is S1+S, it is 3/4ths of fanning strip length that stub end rolls length, to roll width be half of distance between the described five equilibrium mark in both sides to the left and right along the described five equilibrium mark of article one, after finishing mobile described fanning strip make branch mark such as second be positioned at veneer reeling machine top roll center line under, repeat the above-mentioned process that rolls until branch marks such as the last item; 5) roll little head end: described fanning strip is put into veneer reeling machine, make branch marks such as article one on the described fanning strip be positioned at veneer reeling machine top roll center line under, when rolling the microcephaly, the distance that makes the veneer reeling machine top roll be lower than described fanning strip stub end upper surface is S2+S, it is 1/2nd of fanning strip length that little head end rolls length, to roll width be half of distance between the described five equilibrium mark in both sides to the left and right along the described five equilibrium mark of article one, after finishing mobile described fanning strip make branch mark such as second be positioned at veneer reeling machine top roll center line under, repeat the above-mentioned process that rolls until branch marks such as the last item.
2. the tapering rolling technology of high strength large scale plate body according to claim 1, it is characterized in that: after rolling end, compare the curvature of stub end and little head end respectively with model, if any deviation, adjust the distance between top roll and the described fanning strip, again roll by described step 4 and described step 5, until reaching designing requirement.
3. the tapering rolling technology of high strength large scale plate body according to claim 2, it is characterized in that: the distance described in the described step 1 between the five equilibrium mark is less than the distance between the two lower roll axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310265035.3A CN103331343B (en) | 2013-06-28 | 2013-06-28 | Tapered coiling technology for high-strength large-size plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310265035.3A CN103331343B (en) | 2013-06-28 | 2013-06-28 | Tapered coiling technology for high-strength large-size plate |
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| CN103331343A true CN103331343A (en) | 2013-10-02 |
| CN103331343B CN103331343B (en) | 2015-04-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401732A (en) * | 2016-02-03 | 2016-03-16 | 中国核工业华兴建设有限公司 | Assembling method of large steel structure module of nuclear power plant |
| CN113295371A (en) * | 2021-05-27 | 2021-08-24 | 武汉一冶钢结构有限责任公司 | Method for manufacturing thick plate corner section elliptical ring for large-scale low-temperature wind tunnel |
| CN115673694A (en) * | 2023-01-03 | 2023-02-03 | 内江东工设备制造股份有限公司 | Manufacturing method of oversized steel bifurcated pipe |
Citations (8)
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| WO1995002474A1 (en) * | 1993-07-14 | 1995-01-26 | Kenneth Michael Hume | Tapered mandrels for plate bending |
| JP3547640B2 (en) * | 1999-03-31 | 2004-07-28 | 株式会社栗本鐵工所 | Conical pipe manufacturing equipment |
| JP2005297059A (en) * | 2004-04-14 | 2005-10-27 | Hokumei Kikai:Kk | Sheet feed controller fitted to roll for taper tube working |
| JP2006159251A (en) * | 2004-12-07 | 2006-06-22 | Futaba:Kk | Method for bending sectorial flat plate with roller by centering system |
| CN2799119Y (en) * | 2005-05-30 | 2006-07-26 | 王行山 | Five-roller plate bending machine |
| CN202137233U (en) * | 2011-06-24 | 2012-02-08 | 无锡洲翔重工科技有限公司 | Conical cylinder rolling device |
| CN102513417A (en) * | 2011-10-31 | 2012-06-27 | 武汉一冶钢结构有限责任公司 | Rolling method of right cone frustum shell bodies |
| CN202461221U (en) * | 2011-12-30 | 2012-10-03 | 南通超力卷板机制造有限公司 | Two-high sheet rolling machine for rolled conical workpiece |
-
2013
- 2013-06-28 CN CN201310265035.3A patent/CN103331343B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995002474A1 (en) * | 1993-07-14 | 1995-01-26 | Kenneth Michael Hume | Tapered mandrels for plate bending |
| JP3547640B2 (en) * | 1999-03-31 | 2004-07-28 | 株式会社栗本鐵工所 | Conical pipe manufacturing equipment |
| JP2005297059A (en) * | 2004-04-14 | 2005-10-27 | Hokumei Kikai:Kk | Sheet feed controller fitted to roll for taper tube working |
| JP2006159251A (en) * | 2004-12-07 | 2006-06-22 | Futaba:Kk | Method for bending sectorial flat plate with roller by centering system |
| CN2799119Y (en) * | 2005-05-30 | 2006-07-26 | 王行山 | Five-roller plate bending machine |
| CN202137233U (en) * | 2011-06-24 | 2012-02-08 | 无锡洲翔重工科技有限公司 | Conical cylinder rolling device |
| CN102513417A (en) * | 2011-10-31 | 2012-06-27 | 武汉一冶钢结构有限责任公司 | Rolling method of right cone frustum shell bodies |
| CN202461221U (en) * | 2011-12-30 | 2012-10-03 | 南通超力卷板机制造有限公司 | Two-high sheet rolling machine for rolled conical workpiece |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401732A (en) * | 2016-02-03 | 2016-03-16 | 中国核工业华兴建设有限公司 | Assembling method of large steel structure module of nuclear power plant |
| CN105401732B (en) * | 2016-02-03 | 2018-03-23 | 中国核工业华兴建设有限公司 | A kind of assemble method of nuclear power station large-sized steel construction module |
| CN113295371A (en) * | 2021-05-27 | 2021-08-24 | 武汉一冶钢结构有限责任公司 | Method for manufacturing thick plate corner section elliptical ring for large-scale low-temperature wind tunnel |
| CN115673694A (en) * | 2023-01-03 | 2023-02-03 | 内江东工设备制造股份有限公司 | Manufacturing method of oversized steel bifurcated pipe |
| CN115673694B (en) * | 2023-01-03 | 2023-03-03 | 内江东工设备制造股份有限公司 | Manufacturing method of oversized steel bifurcated pipe |
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| CN103331343B (en) | 2015-04-29 |
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Address after: 315200 No. 151 Dayun Road, Zhenhai District, Zhejiang, Ningbo Patentee after: HUAYE STEEL STRUCTURE CO., LTD. Address before: 315200 No. 151 Dayun Road, Zhenhai District, Zhejiang, Ningbo Patentee before: Ningbo Huaye Steel Structure Co., Ltd. |