CN104625313A - Steel plate cutting method - Google Patents
Steel plate cutting method Download PDFInfo
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- CN104625313A CN104625313A CN201410787274.XA CN201410787274A CN104625313A CN 104625313 A CN104625313 A CN 104625313A CN 201410787274 A CN201410787274 A CN 201410787274A CN 104625313 A CN104625313 A CN 104625313A
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- Prior art keywords
- steel plate
- cut
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/002—Machines, apparatus, or equipment for cutting plane workpieces, e.g. plates
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- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a steel plate cutting method. The method comprises the steps that cutting begins from a first position of a first distance from one end of a steel plate in the cutting direction; cutting is stopped when a second position of the steel plate is reached in the cutting direction; in the cutting direction, the remaining part of the steel plate begins to be cut from a third position from the second position by a second distance; in the cutting direction, the portion, between one end of the steel plate and the first position, of the steel plate is cut, and the portion, between the second position and the third position, of the steel plate is cut. According to the steel plate cutting method, two points are utilized to be connected with one point of a steel plate arm, in the connecting process, the gravity of the cut steel plate is shared, displacement of cut finished products (or waste) is small relative to a main body as the cut finished products (or waste) are connected with the steel plate main body through multiple points, the cutting working face tends to be a plane, and therefore the cut steel plate is rectangular and meets the rectangularity requirement.
Description
Technical field
The present invention relates to steel plate cutting technique field, specifically, relate to a kind of steel plate cutting method.
Background technology
In the process of prior art production Wide and Heavy Plates, some steel plate need cut off to meet the requirement of user to size with flame cutting method.Adopt many cutting torch to cut simultaneously, from cut in the process of cutting, be by disposable for section of steel plate cut-out.The steel plate gravitate cut off sinks, and is separated comparatively far away, makes cutting operation face not be plane, cause whole steel plate to cut and present " camber " shape with steel plate parent, and non-rectangle, can not instructions for use be met.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of steel plate cutting method, makes to cut rear steel plate and presents rectangle, meet the requirement of steel plate rectangular degree.
Technical scheme of the present invention is as follows:
A kind of steel plate cutting method, comprising: along cut direction, cutting from the primary importance of first distance of the one end apart from steel plate; Along described cut direction, after being cut to the second place of described steel plate, stop cutting; Along described cut direction, from the 3rd position of the second distance apart from the described second place, cut the remainder of described steel plate; Along described cut direction, cut the described steel plate between one end of described steel plate and described primary importance, and the described steel plate between the described second place and described 3rd position.
Further: described first distance is 10 ~ 20mm.
Further: described second distance is 10 ~ 20mm.
Further: the described second place is along described cut direction, 1/2 position of the length of described steel plate.
Further: the described second place is along described cut direction, 2/3 position of the length of described steel plate.
Further, when the described second place is 2/3 position of the length of described steel plate, described along described cut direction, also comprise before stopping the process of cutting after being cut to the second place of described steel plate: along described cut direction, after being cut to the 4th position of described steel plate, stop cutting; Along described cut direction, from the 5th position of the 3rd distance apart from described 4th position, cut described steel plate.
Further: described from the 3rd position of the second distance apart from the described second place, cut the process of the remainder of described steel plate after also comprise: cut the described steel plate between described 4th position and described 5th position.
Further: described 4th position is along described cut direction, 1/3 position of the length of described steel plate.
Further: described 3rd distance is 10 ~ 20mm.
Technique effect of the present invention is as follows:
The steel plate cutting method of the embodiment of the present invention make use of the steel plate gravity sharing cut-out when 2 junction steel plate arms a bit connect, cutting finished product (or waste material) because of multiple point is connected with steel plate parent, the displacement of relative parent is less, cutting operation face is tending towards plane, make to cut rear steel plate and present rectangle, meet rectangular degree requirement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the steel plate cutting process of the embodiment of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiments provide a kind of steel plate cutting method.As shown in Figure 1, be the schematic diagram of the steel plate cutting process of the embodiment of the present invention.What arrow indicated is cut direction, cuts along line of cut 5.The method comprises following process:
Step S1: along cut direction, cutting from the primary importance of first distance 1 of the one end apart from steel plate 4.
Wherein, the first distance 1 is 10 ~ 20mm.One end of steel plate 4 can be the head of steel plate, also can be the afterbody of steel plate 4.
Step S2: along cut direction, stops cutting after being cut to the second place of steel plate 4.
Wherein, this second place is determined according to the length of steel plate 4.When the length of steel plate 4 is shorter, the second place is along cut direction, 1/2 position of the length of steel plate 4.
When the length of steel plate 4 is longer, cut off between primary importance and the second place if disposable, then the rectangular degree of steel plate 4 is poor, now, this second place is 2/3 position of the length of steel plate 4, preferably, can also comprise following process before the process of step S2:
Step S11: along cut direction, stops cutting after being cut to the 4th position of steel plate 4;
Step S12: along cut direction, cutting steel plate 4 from the 5th position of the 3rd distance 3 apart from the 4th position.
Wherein, the 4th position is along cut direction, 2/3 position of the length of steel plate 4.3rd distance 3 is 10 ~ 20mm.
Step S3: along cut direction, the remainder of cutting steel plate 4 from the 3rd position of the second distance 2 apart from the second place.
Wherein, second distance 2 is 10 ~ 20mm.
Step S4: along cut direction, the steel plate 4 between one end of cutting steel plate 4 and primary importance, and the steel plate 4 between the second place and the 3rd position.
Wherein, when the length of steel plate 4 is longer and implement step S11 and S12, then the step of the steel plate 4 between cutting the 4th position and the 5th position is also comprised after step S3.
The step of the steel plate 4 preferably between this cutting the 4th position and the 5th position according to cut direction, the steel plate 4 between one end and primary importance of cutting steel plate 4, and carrying out between steel plate 4 between the second place and the 3rd position.
The cutting method of the embodiment of the present invention preferably adopts flame cutting method.By adopting cutting head to cut after igniting, preheating, stop cutting by cutoff.
With specific embodiment, technical scheme of the present invention is described further below.
Embodiment 1
This embodiment cutting Wide and Thick Slab wind-powered electricity generation steel, steel grade is Q345E, and large board raw material specification to be cut is 18mm*3100mm*12500mm, requires to be of a size of 18mm*3000mm*12000mm.In cutting process, along cut direction, starting cutting apart from steel plate head first apart from the primary importance of 10mm, namely primary importance is not cut off.Along cut direction, stop cutting after being cut to the second place of steel plate, namely the second place is not cut off.The second place is 1/2 place of the length of steel plate, namely apart from steel plate head 6m position.Along cut direction, the remainder of cutting steel plate from the 3rd position of the second distance 10mm apart from the second place.After steel plate tail section all cuts off by cutting torch, return and the junction between steel plate head and primary importance and the junction between the second place and the 3rd position are cut off by above primary importance and the second place successively.Get width and length that rear steel plate is cut in 3 measurements respectively, its width value is respectively 3000mm, 3001mm, 3000mm, and length value is respectively 12002mm, 12000mm, 12003mm, and the difference measuring, calculate diagonal is 0mm, meets wind power product instructions for use.
Embodiment 2
This embodiment cutting Wide and Thick Slab structural steel, steel grade is Q235B, and large board raw material specification to be cut is 10mm*2100mm*11000mm, requires that blank size is 10mm*500mm*11000mm.In cutting process, 5 cutting torch synchronous cutting.Along cut direction, starting cutting apart from steel plate head first apart from the primary importance of 20mm, namely primary importance is not cut off.Along cut direction, stop cutting after being cut to the 4th position of steel plate, namely the 4th position does not cut off.4th position is 1/3 place of the length of steel plate, namely apart from steel plate head 3.5m place.Along cut direction, from the 5th position of the 3rd distance 20mm apart from the 4th position, stop cutting after cutting steel plate to the second place, namely second position is not cut off.The second place is 2/3 place of the length of steel plate, namely apart from steel plate head 7m position.Along cut direction, the remainder of cutting steel plate from the 3rd position of the second distance 20mm apart from the second place.After steel plate tail section all cuts off by cutting torch, return and the junction between steel plate head and primary importance, the junction between the 4th position and the 5th position and the junction between the second place and the 3rd position are cut off by above primary importance, the 4th position and the second place successively.Choose 1 piece of finished product in 4 pieces that cut, get at 3 and measure width, width value is respectively 501mm, 501mm, 500mm, and the difference measuring, calculate diagonal is 1mm, meets the requirement of user to product rectangular degree.
In sum, the embodiment of the present invention is not increasing equipment, provides a kind of steel plate cutting method ensureing steel plate rectangular degree without the need to transforming on existing equipment basis.Relative to the method by disposable for section of steel plate cut-out, the method is not by cutting at the starting point of steel plate line of cut to be cut, the reserved 10 ~ 20mm section in 1/3,2/3 or 1/2 place of steel plate total length, the steel plate gravity of cut-out is shared when object is that 2 junction steel plates connect than a bit, cutting finished product (or waste material) because of multiple point is connected with steel plate parent, the displacement of relative parent is less, cutting operation face is tending towards plane, makes to cut rear steel plate and presents rectangle, meet rectangular degree requirement.Before not applying the inventive method, monthly the fiery defective steel plate cutting generation reaches 20 tons, is 1000 yuan/ton, adopts method of the present invention then can retrieve economic losses the whole year about 240,000 yuan with finished steel plate and the average price differential of steel scrap.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a steel plate cutting method, is characterized in that, comprising:
Along cut direction, cutting from the primary importance of first distance of the one end apart from steel plate;
Along described cut direction, after being cut to the second place of described steel plate, stop cutting;
Along described cut direction, from the 3rd position of the second distance apart from the described second place, cut the remainder of described steel plate;
Along described cut direction, cut the described steel plate between one end of described steel plate and described primary importance, and the described steel plate between the described second place and described 3rd position.
2. steel plate cutting method as claimed in claim 1, is characterized in that: described first distance is 10 ~ 20mm.
3. steel plate cutting method as claimed in claim 1, is characterized in that: described second distance is 10 ~ 20mm.
4. steel plate cutting method as claimed in claim 1, is characterized in that: the described second place is along described cut direction, 1/2 position of the length of described steel plate.
5. steel plate cutting method as claimed in claim 1, is characterized in that: the described second place is along described cut direction, 2/3 position of the length of described steel plate.
6. steel plate cutting method as claimed in claim 5, is characterized in that, when the described second place is 2/3 position of the length of described steel plate, described along described cut direction, also comprises before stopping the process of cutting after being cut to the second place of described steel plate:
Along described cut direction, after being cut to the 4th position of described steel plate, stop cutting;
Along described cut direction, from the 5th position of the 3rd distance apart from described 4th position, cut described steel plate.
7. steel plate cutting method as claimed in claim 6, it is characterized in that, described from the 3rd position of the second distance apart from the described second place, cut the process of the remainder of described steel plate after also comprise: cut the described steel plate between described 4th position and described 5th position.
8. steel plate cutting method as claimed in claim 6, is characterized in that: described 4th position is along described cut direction, 1/3 position of the length of described steel plate.
9. steel plate cutting method as claimed in claim 6, is characterized in that: described 3rd distance is 10 ~ 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787274.XA CN104625313A (en) | 2014-12-17 | 2014-12-17 | Steel plate cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787274.XA CN104625313A (en) | 2014-12-17 | 2014-12-17 | Steel plate cutting method |
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| Publication Number | Publication Date |
|---|---|
| CN104625313A true CN104625313A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410787274.XA Pending CN104625313A (en) | 2014-12-17 | 2014-12-17 | Steel plate cutting method |
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| CN (1) | CN104625313A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252127A (en) * | 2015-10-20 | 2016-01-20 | 南京钢铁股份有限公司 | Restraining type flame cutting process |
| CN110252976A (en) * | 2019-06-26 | 2019-09-20 | 武汉钢铁有限公司 | A method of improving high-carbon hypereutectoid bridge cable wire rod Central Carbon Segregation |
| CN111054993A (en) * | 2019-12-19 | 2020-04-24 | 中建科工集团有限公司 | Cutting method of circular steel tube |
| CN114523174A (en) * | 2022-03-15 | 2022-05-24 | 广西桂通工程管理集团有限公司 | Method for improving flame cutting blanking precision of steel tube arch rib cylindrical shell section base metal steel plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467542A (en) * | 1977-11-09 | 1979-05-31 | Kobe Steel Ltd | Fast gas cutting of steel plate |
| US5719375A (en) * | 1994-01-12 | 1998-02-17 | Samsung Heavy Industries Co., Ltd. | Stiffener manufacturing method and apparatus thereof |
| JP2001001139A (en) * | 1999-06-22 | 2001-01-09 | Nkk Corp | Gas cutting device and method for cast metal |
| CN104148771A (en) * | 2013-05-15 | 2014-11-19 | 濮阳市江源齿轮制造有限公司 | Steel plate cutting process |
-
2014
- 2014-12-17 CN CN201410787274.XA patent/CN104625313A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467542A (en) * | 1977-11-09 | 1979-05-31 | Kobe Steel Ltd | Fast gas cutting of steel plate |
| US5719375A (en) * | 1994-01-12 | 1998-02-17 | Samsung Heavy Industries Co., Ltd. | Stiffener manufacturing method and apparatus thereof |
| JP2001001139A (en) * | 1999-06-22 | 2001-01-09 | Nkk Corp | Gas cutting device and method for cast metal |
| CN104148771A (en) * | 2013-05-15 | 2014-11-19 | 濮阳市江源齿轮制造有限公司 | Steel plate cutting process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252127A (en) * | 2015-10-20 | 2016-01-20 | 南京钢铁股份有限公司 | Restraining type flame cutting process |
| CN110252976A (en) * | 2019-06-26 | 2019-09-20 | 武汉钢铁有限公司 | A method of improving high-carbon hypereutectoid bridge cable wire rod Central Carbon Segregation |
| CN111054993A (en) * | 2019-12-19 | 2020-04-24 | 中建科工集团有限公司 | Cutting method of circular steel tube |
| CN111054993B (en) * | 2019-12-19 | 2022-06-07 | 中建钢构工程有限公司 | Cutting method of circular steel tube |
| CN114523174A (en) * | 2022-03-15 | 2022-05-24 | 广西桂通工程管理集团有限公司 | Method for improving flame cutting blanking precision of steel tube arch rib cylindrical shell section base metal steel plate |
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Application publication date: 20150520 |