CN102172751A - Method for forging special-shape plate with side length greater than or equal to 4,000 mm - Google Patents
Method for forging special-shape plate with side length greater than or equal to 4,000 mm Download PDFInfo
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- CN102172751A CN102172751A CN2010106156250A CN201010615625A CN102172751A CN 102172751 A CN102172751 A CN 102172751A CN 2010106156250 A CN2010106156250 A CN 2010106156250A CN 201010615625 A CN201010615625 A CN 201010615625A CN 102172751 A CN102172751 A CN 102172751A
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- intermediate blank
- tubular intermediate
- gas cutting
- shower nozzle
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Abstract
The invention discloses a method for forging a special-shape plate with the side length greater than or equal to 4,000 mm with relatively high production efficiency. The method comprises the following steps: forging a blank formed by upsetting and punching a steel ingot to obtain a cylindrical intermediate blank; performing gas cutting on the cylindrical intermediate blank; and finally leveling to obtain the required special-shape plate. However, during the gas cutting of the cylindrical intermediate blank, the method controls the cylindrical intermediate blank to spin around the axis thereof and a spray nozzle to feed along the generatrix direction of the cylindrical intermediate blank so that the spray head moves relative to the cylindrical intermediate blank according to the edge shape of the special-shape plate. According to the invention, as the edge shape of the special-shape plate is formed during the gas cutting of the cylindrical intermediate blank, the gas cutting is not needed after leveling, the process is simplified and the production efficiency is improved; and moreover, the effect that the spray nozzle moves in a three-dimensional space relative to the cylindrical intermediate blank is realized by controlling the spinning movement of the cylindrical intermediate blank, and the existing large gas cutting equipment does not need to be reconstructed.
Description
Technical field
The present invention relates to the limit system technology for making in a kind of equipment manufacture, be specifically related to a kind of method that is used to forge the length of side 〉=4000mm abnormity plate.
Background technology
Super-huge stamp forging hydraulic press frame is the crucial forging of press rack emphasis with C shape plate cutter head forging, and its forging is shaped as " L " shape, forging ' s block dimension 4320 * 480 * 4880mm.At present domesticly do not have still that this type of is especially big and (be the production precedent of special-shaped plate of the length of side 〉=4000mm), do not see the report that disclosed foreign literature is arranged yet.For the forging of special-shaped plate, the way that can expect should be earlier steel ingot to be carried out jumping-up usually, and pulling is square billet then, after this further pulls out to be flat side again, and last gas cutting goes out finished product.But find in practice, use above-mentioned technology can produce mass defect.
The application's applicant applies for, publication No. is the Forging Technology that the application for a patent for invention file (calling documents in the following text) of CN101823112A provides a kind of plate, well overcome the quality problems that above-mentioned large-scale plate forges, and had certain experience to draw in this application.Since this documents in fact at be that runner plate, pressure vessel such as hydrogenerator is with circular plate such as end socket slabs, therefore, the tubular intermediate blank is cut and flattened to this technology open the formation slab at last, and then the step that cuts out finished product on slab is reasonably fully, do not have improved necessity.
But the present inventor finds, if non-circular plates such as manufacturing L shaped plate part consider that the direct edge shape that forms the L shaped plate part when gas cutting tubular intermediate blank then is possible.Form the edge shape of L shaped plate part in the time of if can being implemented in gas cutting tubular intermediate blank, can simplify processing step undoubtedly, enhance productivity.In fact, the proposition of above-mentioned thinking is made the field in the limit and can be considered to have breakthrough fully.
Implement above-mentioned thinking and still face following difficulty, promptly for the gas cutting of tubular intermediate blank, in order to guarantee that shower nozzle points to the center of circle (guaranteeing that the gas cutting flame direction is vertical with the gas cutting face all the time) of tubular intermediate blank all the time when moving, except shower nozzle is the gas cutting route situation of moving with the bus of tubular intermediate blank, select other gas cutting route all inevitably to require the relative tubular intermediate blank of shower nozzle to carry out three-dimensional space motion, and for existing large-scale gas cutting equipment, its shower nozzle can only be along straight line translation or two dimension interlock in one plane.That is to say that existing large-scale gas cutting equipment forms the requirement of the edge shape of L shaped plate part in the time of also can't satisfying gas cutting tubular intermediate blank.
Summary of the invention
The present invention aims to provide the method that the length of side 〉=4000mm abnormity plate is forged in higher being used to of a kind of production efficiency.
This method still will become the tubular intermediate blank by the blank forging that forms after steel ingot jumping-up and the punching earlier, and then this tubular intermediate blank is carried out gas cutting, implement to flatten and obtain desired special-shaped plate at last; But, when the tubular intermediate blank is carried out gas cutting, this method is then by controlling the feeding of this tubular intermediate blank along the spin of himself axis and shower nozzle along this tubular intermediate blank generatrix direction simultaneously, thereby makes the edge shape motion of the relative tubular intermediate blank of this shower nozzle by described special-shaped plate.
For implementing this method, a kind of plain mode is before the tubular intermediate blank is carried out gas cutting, earlier this tubular intermediate blank is positioned over a rotating supporting device that is used to make this tubular intermediate blank along himself axis spin, adjust nozzle position then so that this shower nozzle points to the center of circle of tubular intermediate blank all the time, from original position this tubular intermediate blank is carried out gas cutting more thereafter.
When at the L shaped plate part, should be when the tubular intermediate blank be carried out gas cutting, make shower nozzle relatively this tubular intermediate blank respectively by in order to the first gas cutting route that forms this L shaped plate part left hand edge with in order to form the second gas cutting route motion of this L shaped plate part right hand edge; The described first gas cutting route is a space line that extends along a certain bus of this tubular intermediate blank all the time, described second gas cutting route then be one by straight line that extends along two buses in addition of this tubular intermediate blank respectively and the space zigzag line of forming along the circular arc line that a certain contour of this tubular intermediate blank extends; Wherein, when shower nozzle when described circular arc line moves, the tubular intermediate blank is along the spin of himself axis and shower nozzle keeps motionless, all the other time tubular intermediate blank all keep motionless and shower nozzle is done rectilinear motion.
The invention has the beneficial effects as follows: at first,, need not to carry out again gas cutting after therefore flattening, thereby simplify processing step, enhance productivity because the present invention has realized forming the edge shape of special-shaped plate when gas cutting tubular intermediate blank; Secondly, the spin motion of the present invention by control tubular intermediate blank realizes that the relative tubular intermediate blank of shower nozzle carries out the effect of three-dimensional space motion, do not need existing large-scale gas cutting equipment is transformed; In addition, under the situation of gas cutting L shaped plate part, can two L shaped plate parts of one-shot forming and can not cause the waste of material, saved production cost greatly; At last, the present invention can also guarantee nozzle vertical all the time with the surface of tubular intermediate blank (guaranteeing that promptly the gas cutting flame direction is vertical with the gas cutting face all the time) in the gas cutting process, thereby guarantees the shape and the gas cutting quality of forging.
Description of drawings
Fig. 1～Fig. 5 is the block diagram of gas cutting L shaped plate part of the present invention.
Fig. 6 is the three-dimensional structure diagram of L shaped plate part.
Fig. 7 is the splicing schematic diagram of two L shaped plate parts.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
In this specific embodiment, will be example with gas cutting L shaped plate part, processing step of the present invention is described in detail.
As shown in Figure 6, the left hand edge 501 of L shaped plate part 5 is a straight flange, and right hand edge 502 is the zigzag limit.As shown in Figure 7, two L shaped plate parts 5 are sliceable is a rectangle plate.The present invention is earlier according to being that the disclosed identical method of application for a patent for invention file of CN101823112A becomes tubular intermediate blank 1 with blank forging with publication No., and then by following processing step the most at last tubular intermediate blank 1 be made into L shaped plate part 5 shown in Figure 6.
As shown in Figure 1, the present invention is before carrying out gas cutting to tubular intermediate blank 1, earlier this tubular intermediate blank 1 is positioned over a rotating supporting device 2 that is used to make this tubular intermediate blank 1 along himself axis 4 spin, adjust shower nozzle 3 positions then so that this shower nozzle 3 points to the center of circle of tubular intermediate blank 1 all the time, from original position this tubular intermediate blank 1 is carried out gas cutting more thereafter.
Shown in Fig. 1～4, at L shaped plate part 5, should be when tubular intermediate blank 1 be carried out gas cutting, make shower nozzle 3 relative these tubular intermediate blank 1 respectively by in order to the first gas cutting route that forms this L shaped plate part left hand edge 501 with in order to form the second gas cutting route motion of this L shaped plate part right hand edge 502, the described first gas cutting route is a space line 6 that extends along this tubular intermediate blank 1 a certain bus 7, described second gas cutting route be one by respectively along two buses 8 in addition of this tubular intermediate blank 1,9 space lines 10 that extend, 11 and the space zigzag line formed along the circular arc line 13 that this tubular intermediate blank 1 a certain contour 12 extends.
The present invention at first selects to carry out gas cutting by the second gas cutting route.As shown in Figure 1, tubular intermediate blank 1 keeps motionless, and then relative this tubular intermediate blank 1 of shower nozzle 3 is moved along space line 10, thereby cuts out an otch that extends along tubular intermediate blank 1 bus 8 directions on tubular intermediate blank 1.Then, as shown in Figure 2, stationary nozzle 3 is motionless, rotating supporting device 2 then drives tubular intermediate blank 1 with himself axis 4 spin (each arrow among Fig. 2 is represented the backing roll of rotating supporting device 2 and the direction of rotation of tubular intermediate blank 1 respectively), at this moment, shower nozzle 3 relative tubular intermediate blank 1 are moved along circular arc line 13, thereby cut out an otch that extends along tubular intermediate blank 1 contour 12 directions on tubular intermediate blank 1.After this, as shown in Figure 3, it is motionless that tubular intermediate blank 1 keeps again, and then relative this tubular intermediate blank 1 of shower nozzle 3 is moved along space line 11, thereby cuts out an otch that extends along tubular intermediate blank 1 bus 9 directions on tubular intermediate blank 1.Above-mentioned three otch link up each other, form the right hand edge 502 of L shaped plate part 5.
The present invention carries out gas cutting by the first gas cutting route more then.As shown in Figure 4, tubular intermediate blank 1 keeps motionless, then relative this tubular intermediate blank 1 of shower nozzle 3 is moved along space line 6, thereby cuts out an otch that extends along tubular intermediate blank 1 bus 7 directions on tubular intermediate blank 1, and this otch forms the left hand edge 501 of L shaped plate part 5.State diagram after being illustrated in figure 5 as gas cutting and finishing.At last tubular intermediate blank 1 is implemented to flatten and just can access desired L shaped plate part.
Claims (3)
1. be used to forge the method for the length of side 〉=4000mm abnormity plate, this method will become tubular intermediate blank (1) by the blank forging that forms after steel ingot jumping-up and the punching earlier, and then this tubular intermediate blank (1) carried out gas cutting, implement to flatten and obtain desired special-shaped plate at last, it is characterized in that: when this tubular intermediate blank (1) is carried out gas cutting, by controlling of the feeding of this tubular intermediate blank (1) simultaneously along the spin of himself axis (4) and shower nozzle (3) along this tubular intermediate blank (1) generatrix direction, thus make this shower nozzle (3) relatively tubular intermediate blank (1) by the edge shape motion of described special-shaped plate.
2. the method that is used to forge the length of side 〉=4000mm abnormity plate as claimed in claim 1, it is characterized in that: before tubular intermediate blank (1) is carried out gas cutting, earlier this tubular intermediate blank (1) is positioned over a rotating supporting device (2) that is used to make this tubular intermediate blank (1) along himself axis (4) spin, adjust shower nozzle (3) position then so that this shower nozzle (3) points to the center of circle of tubular intermediate blank (1) all the time, from original position this tubular intermediate blank (1) is carried out gas cutting more thereafter.
3. the method that is used to forge the length of side 〉=4000mm abnormity plate as claimed in claim 1 or 2, it is characterized in that: at L shaped plate part (5), should be when tubular intermediate blank (1) be carried out gas cutting, make shower nozzle (3) relatively this tubular intermediate blank (1) respectively by in order to the first gas cutting route that forms this L shaped plate part left hand edge (501) with in order to form the second gas cutting route motion of this L shaped plate part right hand edge (502), the described first gas cutting route is a space line (6) that extends along this a certain bus of tubular intermediate blank (1) (7), described second gas cutting route be one by respectively along two buses (8 in addition of this tubular intermediate blank (1), 9) space line (10 of Yan Shening, 11) and the space zigzag line of being formed along the circular arc line (13) that this a certain contour of tubular intermediate blank (1) (12) extends; Wherein, when shower nozzle (3) when described circular arc line (13) moves, tubular intermediate blank (1) is along the spin of himself axis (4) and shower nozzle (3) keeps motionless, all the other time tubular intermediate blank (1) all keep motionless and shower nozzle (3) is done rectilinear motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106156250A CN102172751B (en) | 2010-12-30 | 2010-12-30 | Method for forging special-shape plate with side length greater than or equal to 4,000 mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106156250A CN102172751B (en) | 2010-12-30 | 2010-12-30 | Method for forging special-shape plate with side length greater than or equal to 4,000 mm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102172751A true CN102172751A (en) | 2011-09-07 |
| CN102172751B CN102172751B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106156250A Active CN102172751B (en) | 2010-12-30 | 2010-12-30 | Method for forging special-shape plate with side length greater than or equal to 4,000 mm |
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| CN (1) | CN102172751B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554085A (en) * | 2011-12-30 | 2012-07-11 | 中信重工机械股份有限公司 | Forging method for improving horizontal mechanical property of flat and square forging piece |
| CN103691857A (en) * | 2014-01-10 | 2014-04-02 | 中信重工机械股份有限公司 | Method for forging isotropous rectangular shaft forging |
| CN104971963A (en) * | 2015-06-24 | 2015-10-14 | 陈文建 | Slab forging process |
| CN111331064A (en) * | 2020-03-11 | 2020-06-26 | 通裕重工股份有限公司 | Forming method of large-size plate forging |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2084855U (en) * | 1991-03-23 | 1991-09-18 | 沈阳工业锅炉厂 | Gas cutter |
| EP1693127A1 (en) * | 2005-02-21 | 2006-08-23 | Snecma | Method of upsetting a metallic billet and jacket - top set for carrying out said method |
| CN101823112A (en) * | 2010-05-20 | 2010-09-08 | 二重集团（德阳）重型装备股份有限公司 | Forging process of plate element |
-
2010
- 2010-12-30 CN CN2010106156250A patent/CN102172751B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2084855U (en) * | 1991-03-23 | 1991-09-18 | 沈阳工业锅炉厂 | Gas cutter |
| EP1693127A1 (en) * | 2005-02-21 | 2006-08-23 | Snecma | Method of upsetting a metallic billet and jacket - top set for carrying out said method |
| CN101823112A (en) * | 2010-05-20 | 2010-09-08 | 二重集团（德阳）重型装备股份有限公司 | Forging process of plate element |
Non-Patent Citations (1)
| Title |
|---|
| 赵健: "马鞍型管接头气割专机的设计", 《工业锅炉》, no. 03, 20 June 2005 (2005-06-20) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554085A (en) * | 2011-12-30 | 2012-07-11 | 中信重工机械股份有限公司 | Forging method for improving horizontal mechanical property of flat and square forging piece |
| CN102554085B (en) * | 2011-12-30 | 2015-08-05 | 中信重工机械股份有限公司 | A kind of forging method improving flat side's forging horizontal mechanical performance |
| CN103691857A (en) * | 2014-01-10 | 2014-04-02 | 中信重工机械股份有限公司 | Method for forging isotropous rectangular shaft forging |
| CN104971963A (en) * | 2015-06-24 | 2015-10-14 | 陈文建 | Slab forging process |
| CN111331064A (en) * | 2020-03-11 | 2020-06-26 | 通裕重工股份有限公司 | Forming method of large-size plate forging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102172751B (en) | 2013-12-11 |
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Effective date of registration: 20180315 Address after: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee after: Double (Deyang) heavy equipment Co., Ltd. Address before: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee before: Erzhong Group (Deyang) Heavy Equipment Co., Ltd. |