CN102172751B - 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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- CN102172751B CN102172751B CN2010106156250A CN201010615625A CN102172751B CN 102172751 B CN102172751 B CN 102172751B CN 2010106156250 A CN2010106156250 A CN 2010106156250A CN 201010615625 A CN201010615625 A CN 201010615625A CN 102172751 B CN102172751 B CN 102172751B
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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 for forging the method for the length of side >=4000mm abnormity plate.
Background technology
C shape plate cutter head forging for super-huge stamp forging hydraulic press frame, be the crucial forging of press rack emphasis, and its forging is shaped as " L " shape, forging ' s block dimension 4320 * 480 * 4880mm.The current domestic production precedent that there is no this type of especially big (being the length of side >=4000mm) special-shaped plate, also there are no the report of disclosed foreign literature.For the forging of special-shaped plate, the way that usually can expect should be first steel ingot to be carried out to jumping-up, and then pulling is square billet, after this further pulls out as flat side again, and last gas cutting goes out finished product.But find in practice, use above-mentioned technique can produce mass defect.
The Forging Technology that the application's applicant is application, application for a patent for invention file (calling documents in the following text) that publication No. is 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.Due to this documents in fact for be runner plate such as hydrogenerator, the circular plate such as end sealing plate blank for pressure vessel, therefore, the tubular intermediate blank is cut and flattened to this technique finally open the formation slab, and then the step that cuts out finished product on slab is reasonably fully, there do not is improved necessity.
But the present inventor finds, if the non-circular plates such as manufacture L shaped plate part consider that the direct edge shape that forms the L shaped plate part when gas cutting tubular intermediate blank is possible.If realize forming the edge shape of L shaped plate part when gas cutting tubular intermediate blank, can simplify processing step undoubtedly, enhance productivity.In fact, the proposition of above-mentioned thinking, manufacture field in the limit and can be considered to have breakthrough fully.
Implement above-mentioned thinking and still face following difficulty, 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 while moving, except shower nozzle be take the bus of tubular intermediate blank as the situation that the gas cutting route is moved, 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 in one plane two dimension interlock.That is to say, 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 meeting gas cutting tubular intermediate blank.
Summary of the invention
The present invention aim to provide a kind of production efficiency higher for forging the method for the length of side >=4000mm abnormity plate.
The method still first will become the tubular intermediate blank by the blank forging formed after steel ingot jumping-up punching, and then this tubular intermediate blank is carried out to gas cutting, finally implement to flatten and obtain desired special-shaped plate; But, when the tubular intermediate blank is carried out to gas cutting, the party's rule is by control 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 the method, a kind of plain mode is before the tubular intermediate blank is carried out to gas cutting, first this tubular intermediate blank is positioned over to one for making the rotating supporting device of this tubular intermediate blank along the spin of himself axis, then adjust nozzle position 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 to gas cutting more thereafter.
When for the L shaped plate part, should, when the tubular intermediate blank is carried out to gas cutting, make relative this tubular intermediate blank of shower nozzle respectively by the first gas cutting route in order to form 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; Described the first gas cutting route is a space line extended along a certain bus of this tubular intermediate blank all the time, and described second gas cutting route is a space zigzag line be comprised of the straight line extended along another two buses of this tubular intermediate blank respectively and the circular arc line that extends along a certain contour of this tubular intermediate blank; Wherein, when shower nozzle moves along described circular arc line, the tubular intermediate blank is along the spin of himself axis and shower nozzle keeps motionless, and 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, because the present invention has realized forming when the gas cutting tubular intermediate blank edge shape of special-shaped plate, after therefore flattening without carrying out again gas cutting, thereby simplify processing step, enhance productivity; Secondly, the present invention realizes that by the spin motion of controlling the tubular intermediate blank the relative tubular intermediate blank of shower nozzle carries out the effect of three-dimensional space motion, does not need existing large-scale gas cutting equipment is transformed; In addition, in the situation that gas cutting L shaped plate part, can two L shaped plate parts of one-shot forming and can not cause the waste of material, greatly saved production cost; Finally, the surface that the present invention can also guarantee nozzle and tubular intermediate blank in the gas cutting process is vertical (guaranteeing that the gas cutting flame direction is vertical with the gas cutting face all the time) all the time, thereby guarantee shape and the gas cutting quality of forging.
The accompanying drawing explanation
The block diagram that Fig. 1～Fig. 5 is gas cutting L shaped plate part of the present invention.
The three-dimensional structure diagram that Fig. 6 is the L shaped plate part.
The splicing schematic diagram that Fig. 7 is two L shaped plate parts.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
In this specific embodiment, the gas cutting L shaped plate part of take is example, and 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 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 first becomes tubular intermediate blank 1 according to the disclosed identical method of the application for a patent for invention file that is CN101823112A with publication No. by blank forging, and then by following processing step the most at last tubular intermediate blank 1 be made into the L shaped plate part 5 shown in Fig. 6.
As shown in Figure 1, the present invention is before carrying out gas cutting to tubular intermediate blank 1, first this tubular intermediate blank 1 is positioned over to one for making the rotating supporting device 2 of this tubular intermediate blank 1 along 4 spins of himself axis, then adjust shower nozzle 3 positions 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 to gas cutting more thereafter.
As shown in Fig. 1～4, for L shaped plate part 5, should be when tubular intermediate blank 1 be carried out to gas cutting, make relative this tubular intermediate blank 1 of shower nozzle 3 respectively by the first gas cutting route in order to form 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, described the first gas cutting route is a space line 6 extended along a certain bus 7 of this tubular intermediate blank 1, described second gas cutting route be one by respectively along another two buses 8 of this tubular intermediate blank 1, 9 space lines 10 that extend, 11 and the space zigzag line that forms of the circular arc line 13 that extends along a certain contour of this tubular intermediate blank 1 12.
At first the present invention selects to carry out gas cutting by the second gas cutting route.As shown in Figure 1, tubular intermediate blank 1 keeps motionless, and shower nozzle 3 relative this tubular intermediate blank 1 is moved along space line 10, thereby cuts out an otch extended 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 drives tubular intermediate blank 1 with himself axis 4 spin (each arrow in Fig. 2 means respectively the backing roll of rotating supporting device 2 and the direction of rotation of tubular intermediate blank 1), now, the relative tubular intermediate blank 1 of shower nozzle 3 is moved along circular arc line 13, thereby cuts out an otch extended 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 shower nozzle 3 relative this tubular intermediate blank 1 is moved along space line 11, thereby cut out an otch extended along tubular intermediate blank 1 bus 9 directions on tubular intermediate blank 1.Above-mentioned three otch are coherent each other, form the right hand edge 502 of L shaped plate part 5.
Then the present invention carries out gas cutting by the first gas cutting route again.As shown in Figure 4, tubular intermediate blank 1 keeps motionless, shower nozzle 3 relative this tubular intermediate blank 1 is moved along space line 6, thereby cuts out an otch extended 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 gas cutting and completing.Finally tubular intermediate blank 1 is implemented to flatten and just can access desired L shaped plate part.
Claims (2)
1. for forging the method for the length of side >=4000mm abnormity plate, the method first will become tubular intermediate blank (1) by the blank forging formed after steel ingot jumping-up punching, and then this tubular intermediate blank (1) is carried out to gas cutting, finally implement to flatten and obtain desired special-shaped plate, it is characterized in that: when this tubular intermediate blank (1) is carried out to gas cutting, by control the feeding of this tubular intermediate blank (1) along the spin of himself axis (4) and shower nozzle (3) along this tubular intermediate blank (1) generatrix direction simultaneously, thereby make this shower nozzle (3) edge shape motion that tubular intermediate blank (1) is pressed described special-shaped plate relatively,
For L shaped plate part (5), should be when tubular intermediate blank (1) be carried out to gas cutting, make shower nozzle (3) relatively this tubular intermediate blank (1) respectively by the first gas cutting route in order to form 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), described the first gas cutting route is a space line (6) extended along this certain bus of tubular intermediate blank (1) (7), described the second gas cutting route be one by respectively along another two buses (8 of this tubular intermediate blank (1), 9) space line (10 extended, 11) and the space zigzag line that forms of the circular arc line (13) extended along this certain contour of tubular intermediate blank (1) (12), wherein, when shower nozzle (3) moves along described circular arc line (13), tubular intermediate blank (1) is along the spin of himself axis (4) and shower nozzle (3) keeps motionless, and all the other time tubular intermediate blank (1) all keep motionless and shower nozzle (3) is done rectilinear motion.
2. as claimed in claim 1 for forging the method for the length of side >=4000mm abnormity plate, it is characterized in that: before tubular intermediate blank (1) is carried out to gas cutting, first this tubular intermediate blank (1) is positioned over to one for making the rotating supporting device (2) of this tubular intermediate blank (1) along the spin of himself axis (4), then adjust shower nozzle (3) position 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 to gas cutting more thereafter.
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 CN102172751A (en) | 2011-09-07 |
| CN102172751B true 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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103691857B (en) * | 2014-01-10 | 2017-01-04 | 中信重工机械股份有限公司 | A kind of forging method of isotropic rectangle sectional axis 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 (2)
| Title |
|---|
| 赵健.马鞍型管接头气割专机的设计.《工业锅炉》.2005,(第03期), |
| 马鞍型管接头气割专机的设计;赵健;《工业锅炉》;20050620(第03期);第35页2.3工作原理，图2 * |
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| CN102172751A (en) | 2011-09-07 |
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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. |
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