CN105252127A - Restraining type flame cutting process - Google Patents
Restraining type flame cutting process Download PDFInfo
- Publication number
- CN105252127A CN105252127A CN201510684512.9A CN201510684512A CN105252127A CN 105252127 A CN105252127 A CN 105252127A CN 201510684512 A CN201510684512 A CN 201510684512A CN 105252127 A CN105252127 A CN 105252127A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- cutting
- head
- cut
- mark
- 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.)
- Pending
Links
Classifications
-
- 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
- B23K10/00—Welding or cutting by means of a plasma
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a restraining type flame cutting process which includes the following steps that firstly, a steel plate is marked with a mark along a region to be cut and the mark extends to the tail of the steel plate from the head of the steel plate; secondly, a cutting head of a flame cutting device is arranged at the portion 1 cm to 3 cm away from the head of the steel plate, the cutting head starts cutting the steel plate along the mark to the tail of the steel plate till the steel plate is completely cut, and in the cutting process, the heat stress of a flame heat influence region is restrained by a region which is not cut off so that lateral bending deformation cannot happen; and thirdly, after all battens are cut, cutting is started from the head of the steel plate along the mark, and the reserved non-cut region of the head of the steel plate is cut off. By the adoption of the restraining type flame cutting process, flame cutting heat stress is counteracted through the restraining force of the steel plate, medium-thick plate cut pieces are prevented from being laterally bent in the flame cutting process, and the cutting accuracy of the medium-thick battens is effectively improved.
Description
Technical field
The present invention relates to technical field of metallurgical production, be specifically related to a kind of constraint formula fire cutting process.
Background technology
Hot rolled steel plate in use, can cut into different shape and size as required, and be then welded into different device shapes, cutting accuracy will affect the merging precision of weld seam.The workpiece that length-width ratio is large; especially strip workpiece; lateral bending problem is often there will be in cutting process; its main cause is that the thermal stress at cut point place is when exceeding cutting member structural stress; it is cutting member generation lateral thrust distortion (as shown in Figure 1); lateral thrust lath has a strong impact on follow-up welding link, and severe bends can cause cutting member normally to use, and causes sheet material to be wasted.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of constraint formula fire cutting process is provided, utilize steel plate self restraining force to resist fire and cut thermal stress, avoid cut deal cutting member fire to cut through in journey and lateral bending occurs, effectively improve the cutting accuracy of cut deal bar.
In order to solve above technical problem, the invention provides a kind of constraint formula fire cutting process, comprising the steps,
(1) mark along the region that will cut on steel plate, this mark extends to steel plate tail by steel plate head;
(2) cutting head of flame cutter is placed in the upper distance steel plate head 1 ~ 3cm place of mark, start cutter cutting, the cutting along mark to lath afterbody is until terminate lath cutting, in this cutting process, the thermal stress of flame heat affected area restricts by not cutting off region, and lateral thrust distortion can not occur;
(3) after all lath cuttings terminate, cutter from the head of steel plate along mark, will reserve uncut steel plate head region and cut off.
The technical scheme that the present invention limits further is: the distance between mark is equal.
Further, flame cutter is ion cutting machine.
The invention has the beneficial effects as follows: the method is skillfully constructed, be convenient to implement, effectively utilize steel plate self restraining force to resist fire and cut thermal stress, avoid cut deal cutting member fire to cut through in journey and lateral bending occurs, effectively improve the cutting accuracy of cut deal bar.
Accompanying drawing explanation
Fig. 1 is original cutting method schematic diagram.
Fig. 2 is cutting method step (1) of the present invention, step (2) schematic diagram.
Fig. 3 is cutting method step (3) schematic diagram of the present invention.
Detailed description of the invention
embodiment 1
A kind of 8mm yield strength that the present embodiment provides is the fiery cutting process of 1150MPa cut deal, this technique uses CUT as cutting tool, cutting width of sheet is 100mm, require that cutting is rear without lateral thrust, steel plate length and width are respectively 8000mm, 2500mm, and cutting lath length and width are respectively 8000mm, 100mm., comprise the steps,
(1) mark along the region that will cut on steel plate, this mark extends to steel plate tail by steel plate head;
(2) cutting head of ion cutting machine is placed in the upper distance steel plate head 2cm place of mark, started cutter cutting, the cutting along mark to lath afterbody is until terminate lath cutting, in this cutting process, the thermal stress of flame heat affected area restricts by not cutting off region, and lateral thrust distortion can not occur;
(3) after all lath cuttings terminate, cutter from the head of steel plate along mark, will reserve uncut steel plate head region and cut off.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (3)
1. retrain a formula fire cutting process, it is characterized in that, comprise the steps,
(1) mark along the region that will cut on steel plate, this mark extends to steel plate tail by steel plate head;
(2) cutting head of flame cutter is placed in the upper distance steel plate head 1 ~ 3cm place of mark, start cutter cutting, the cutting along mark to steel plate tail is until terminate steel plate cutting, in this cutting process, the thermal stress of flame heat affected area restricts by not cutting off region, and lateral thrust distortion can not occur;
(3) after all lath cuttings terminate, cutter from the head of steel plate along mark, will reserve uncut steel plate head region and cut off.
2. a kind of constraint formula fire cutting process according to claim 1, it is characterized in that, the distance between described mark is equal.
3. a kind of constraint formula fire cutting process according to claim 1, it is characterized in that, described flame cutter is ion cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510684512.9A CN105252127A (en) | 2015-10-20 | 2015-10-20 | Restraining type flame cutting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510684512.9A CN105252127A (en) | 2015-10-20 | 2015-10-20 | Restraining type flame cutting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105252127A true CN105252127A (en) | 2016-01-20 |
Family
ID=55092219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510684512.9A Pending CN105252127A (en) | 2015-10-20 | 2015-10-20 | Restraining type flame cutting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105252127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213216A (en) * | 2021-05-20 | 2021-08-06 | 浙江绍兴中环印染有限公司 | Quick rolling machine of printing and dyeing cloth |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201471050U (en) * | 2009-07-03 | 2010-05-19 | 陈刚 | Magnetic curve cutting device |
| CN202763250U (en) * | 2012-06-08 | 2013-03-06 | 刘国强 | Semi-automatic gas cutting machine |
| KR20140043606A (en) * | 2012-10-02 | 2014-04-10 | 현대중공업 주식회사 | Method for cutting structural steel |
| CN104625313A (en) * | 2014-12-17 | 2015-05-20 | 内蒙古包钢钢联股份有限公司 | Steel plate cutting method |
-
2015
- 2015-10-20 CN CN201510684512.9A patent/CN105252127A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201471050U (en) * | 2009-07-03 | 2010-05-19 | 陈刚 | Magnetic curve cutting device |
| CN202763250U (en) * | 2012-06-08 | 2013-03-06 | 刘国强 | Semi-automatic gas cutting machine |
| KR20140043606A (en) * | 2012-10-02 | 2014-04-10 | 현대중공업 주식회사 | Method for cutting structural steel |
| CN104625313A (en) * | 2014-12-17 | 2015-05-20 | 内蒙古包钢钢联股份有限公司 | Steel plate cutting method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213216A (en) * | 2021-05-20 | 2021-08-06 | 浙江绍兴中环印染有限公司 | Quick rolling machine of printing and dyeing cloth |
| CN113213216B (en) * | 2021-05-20 | 2021-11-02 | 浙江绍兴中环印染有限公司 | Quick rolling machine of printing and dyeing cloth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |