CN104588902A - L-shaped notch of H-shaped steel and cutting technology of oblique notch - Google Patents
L-shaped notch of H-shaped steel and cutting technology of oblique notch Download PDFInfo
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- CN104588902A CN104588902A CN201410746064.6A CN201410746064A CN104588902A CN 104588902 A CN104588902 A CN 104588902A CN 201410746064 A CN201410746064 A CN 201410746064A CN 104588902 A CN104588902 A CN 104588902A
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- cut
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- profile steel
- shaped steel
- flange plate
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/10—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to cutting or desurfacing
Abstract
The invention provides an L-shaped notch of H-shaped steel and a cutting technology of an oblique notch. The technology comprises the following steps that first, the H-shaped steel is horizontally placed on a cup support, and cutting lines are marked on the front face and the back face of a flange slab of the H-shaped steel; second, cutting is conducted along the cutting line on the front face of the flange slab of the H-shaped steel; third, the H-shaped steel is erected; fourth, then cutting is conducted along the cutting line; fifth, a supporting rod is arranged on the cutting line on the front face of the flange slab, and cutting is conducted along the remaining cutting line under the assisting of the supporting rod; sixth, the H-shaped steel is overturned to enable the back face, which has not been cut, of the flange slab of the H-shaped steel to face upwards; seventh, the steps from the second to the fifth are executed again, and then cutting is conducted along the cutting line of the H-shaped steel until the entire H-shaped steel is cut to be a needed H-shaped steel finished product. According to the L-shaped notch of the H-shaped steel and the cutting technology of the oblique notch, the supporting rod is used as the support of a cutting gun so that the cutting gun can smoothly and precisely cut the H-shaped steel, and the cutting quality is guaranteed. Moreover, the operation difficulty of the H-shaped steel is greatly lowered, the potential safety hazards of safety production are avoided, and the production cost is lowered.
Description
Technical field
The present invention relates to the cutting technique of H profile steel, particularly relate to a kind of L-type otch of H profile steel and the cutting technique of angular cut, belong to petrochemical industry, mechanical field.
Background technology
The modularized design of liquefied natural gas (LNG) plant and construction, become the dominant technology trend complying with liquefied natural gas market, the world.A modularization liquefied natural gas (LNG) plant is then made up of hundreds of modules.And each module comprises: several layers of deck plate, the H profile steel brace rod member on each deck plate generally adopts " L " type otch, the cutting of angular cut, welding manner, and is connected as one by gusset and crossbeam or longeron.Along with Chinese modularization builds emergence and the development in market, modularization project is increasing, and H profile steel adopts the connected mode of brace rod member also to become a kind of trend, and therefore, in the building course of module, the cutting stock of this type of rod member also grows with each passing day.
At present, the process of cutting H profile steel is: first H profile steel is in web laying state upward, then, respectively H profile steel wing plates on two sides is cut, again the web of H profile steel cut, thus complete the cutting to whole H profile steel, but there is following shortcoming in this kind of cutting mode:
1, due to cutting vertical angle be with operating personnel individual feel carry out; Cutting result cannot be differentiated.Therefore, easily cause the web surface of H profile steel, the triangular facet of wing plate forms coarse channel form; Make cut quality meet need of production, the follow-up amount of doing over again is large, therefore, causes production cost higher;
2, owing to can to balance and steadily when being and ensureing cutting by operating personnel itself by object; Therefore, not only cause the operation easier of operating personnel comparatively large, labour intensity is high; And cutting efficiency is lower, also bring hidden danger to safety in production;
3, due to cutting H profile steel both sides on lower wing plate process in, the burning produced, oxidation can make web surface line of cut fuzzy or disappear; Therefore, needing is rule by secondary makes up, and wastes man-hour.
Summary of the invention
Main purpose of the present invention is the above-mentioned shortcoming overcoming prior art existence, and a kind of L-type otch of H profile steel of improvement and the cutting technique of angular cut are provided, it uses support bar as the support of burning torch, burning torch can not only be allowed to cut junction between H profile steel flange plate and web smoothly, accurately, ensure that cut quality; And up to a hundred rod members carry out simultaneously, greatly reduce the L-type otch of H profile steel and angular cut operation easier and labour intensity; Meanwhile, avoid the hidden danger of safety in production, reduce production cost.
The object of the invention is to be realized by following technical scheme:
The L-type otch of H profile steel and a cutting technique for angular cut, is characterized in that: take following steps:
The first step: the web of H profile steel is in horizontal positioned state and is placed on pad pier; Surplus line of cut, the vertical line of cut of triangle, web line of cut, the vertical line of cut of L-type, L-type transverse cut, triangle transverse cut is drawn on the positive and negative two sides of the flange plate of H profile steel and web;
Second step: cutting personnel cut along the vertical line of cut of triangle on H profile steel flange plate front; Then, the otch caused with the vertical secant earnestly of the triangle on flange plate front and the gap of web, for cutting starting point, are cut to the end of web along web line of cut; And cut away unnecessary H profile steel along H profile steel surplus line of cut simultaneously;
3rd step: H profile steel is erected, now, the front flange plate of the H profile steel be cut is upward;
4th step: cutting personnel cut along the vertical line of cut of L-type again;
5th step a: support bar is placed on the line of cut in flange plate front, support bar auxiliary under, complete the cutting of L-type transverse cut, triangle transverse cut successively;
6th step: H profile steel is turned over turnback and make web parallel, then, then H profile steel is erected, now, the H profile steel flange plate reverse side be not cut is upward;
7th step: repeat above-mentioned second step to the 5th step, then cut, until whole H profile steel is cut into the finished parts of required H profile steel along the vertical line of cut of L-type on H profile steel flange plate reverse side, L-type transverse cut, triangle transverse cut.
Described support bar is angle steel, channel-section steel or square steel.
In described 5th step, support bar is placed on the side line of cut in flange plate front, and is attached on support bar the side of burning torch mouth as the strong point, L-type transverse cut along flange plate front is cut, then, in the same way, cutting is completed along triangle transverse cut.
Beneficial effect of the present invention: the present invention is owing to adopting technique scheme, and it uses support bar as the support of burning torch, burning torch can not only be allowed to cut junction between H profile steel flange plate and web smoothly, accurately, ensure that cut quality; And up to a hundred rod members carry out simultaneously, greatly reduce the L-type otch of H profile steel and angular cut operation easier and labour intensity; Meanwhile, avoid the hidden danger of safety in production, reduce production cost.
Accompanying drawing explanation
Fig. 1 is H profile steel putting position schematic diagram of the present invention.
Fig. 2 is line of cut schematic perspective view of the present invention.
Fig. 3 is H profile steel flange plate front of the present invention line of cut schematic diagram.
Fig. 4 is H profile steel web line of cut schematic diagram of the present invention.
Fig. 5 is H profile steel flange plate reverse side line of cut schematic diagram of the present invention.
Fig. 6 is that the present invention uses support bar to cut schematic diagram.
Fig. 7 is the finished parts schematic diagram after H profile steel is cut by the present invention.
Major label description in figure:
1.H shaped steel, 2. pad pier, 3. flange plate front, 4. flange plate reverse side, 5. web, the 6. vertical line of cut of surplus line of cut, 7. triangle, 8. web line of cut, the vertical line of cut of 9.L type, 10.L type transverse cut, 11. triangle transverse cut, 12. support bars, 13. finished parts.
Detailed description of the invention
The present invention takes following steps:
The first step: as Figure 1-Figure 5, is in horizontal positioned state and is placed on pad pier 2 by the web 5 of H profile steel 1; H profile steel surplus line of cut, the vertical line of cut of triangle 7, web line of cut 8, the vertical line of cut 9 of L-type, L-type transverse cut 10, triangle transverse cut 11 is drawn at the flange plate front 3 of H profile steel 1, flange plate reverse side 4 and web 5;
Second step: as shown in Figure 2 and Figure 3, cutting personnel cut along the vertical line of cut 7 of the triangle on H profile steel flange plate front; Then, the otch caused with the vertical secant 7 earnestly of the triangle on flange plate front 3 and the gap of web 5, for cutting starting point, are cut to the end of web 5 along web line of cut 8; And unnecessary H profile steel 1 can be cut away along H profile steel surplus line of cut 6 simultaneously;
3rd step: as shown in Figure 6, according to the specification of H profile steel 1, H profile steel 1 erects by the mode lifted by operating personnel or employing hoisting machinery, and now, the front flange plate 3 of the H profile steel 1 be cut is upward;
4th step: as shown in Figure 3, cutting personnel cut along the vertical line of cut 9 of L-type again;
5th step: as shown in Figure 6, is placed on the line of cut in flange plate front 3 by a support bar 12, support bar 12 auxiliary under, complete the cutting of L-type transverse cut 10, triangle transverse cut 11 successively; During cutting, according to the spacing of burning torch mouth center to burning torch mouth side, one support bar 12 is placed on the side line of cut in flange plate front 3, and the side of burning torch mouth is attached on support bar 12 as the strong point, L-type transverse cut 10 along flange plate front 3 is cut, then, in the same way, cutting is completed along triangle transverse cut 11;
6th step: according to the specification of H profile steel 1, H profile steel 1 is turned over turnback by the mode lifted by operating personnel or employing hoisting machinery makes web 5 parallel, and then, then H profile steel 1 erected, now, the H profile steel flange plate reverse side 4 be not cut is upward;
7th step: as shown in Figure 5, repeat above-mentioned second step to the 5th step, cut along the vertical line of cut 9 of the L-type on H profile steel flange plate reverse side 4, L-type transverse cut 10, triangle transverse cut 11 again, until whole H profile steel 1 is cut into the finished parts 13 of required H profile steel 1.
Above-mentioned support bar 12 is angle steel, channel-section steel or square steel.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (3)
1. the L-type otch of H profile steel and a cutting technique for angular cut, is characterized in that: take following steps:
The first step: the web of H profile steel is in horizontal positioned state and is placed on pad pier; Surplus line of cut, the vertical line of cut of triangle, web line of cut, the vertical line of cut of L-type, L-type transverse cut, triangle transverse cut is drawn on the positive and negative two sides of the flange plate of H profile steel and web;
Second step: cutting personnel cut along the vertical line of cut of triangle on H profile steel flange plate front; Then, the otch caused with the vertical secant earnestly of the triangle on flange plate front and the gap of web, for cutting starting point, are cut to the end of web along web line of cut; And cut away unnecessary H profile steel along H profile steel surplus line of cut simultaneously;
3rd step: H profile steel is erected, now, the front flange plate of the H profile steel be cut is upward;
4th step: cutting personnel cut along the vertical line of cut of L-type again;
5th step a: support bar is placed on the line of cut in flange plate front, support bar auxiliary under, complete the cutting of L-type transverse cut, triangle transverse cut successively;
6th step: H profile steel is turned over turnback and make web parallel, then, then H profile steel is erected, now, the H profile steel flange plate reverse side be not cut is upward;
7th step: repeat above-mentioned second step to the 5th step, then cut, until whole H profile steel is cut into the finished parts of required H profile steel along the vertical line of cut of L-type on H profile steel flange plate reverse side, L-type transverse cut, triangle transverse cut.
2. the L-type otch of H profile steel according to claim 1 and the cutting technique of angular cut, is characterized in that: described support bar is angle steel, channel-section steel or square steel.
3. the L-type otch of H profile steel according to claim 1 and the cutting technique of angular cut, it is characterized in that: in described 5th step, support bar is placed on the side line of cut in flange plate front, and the side of burning torch mouth is attached on support bar as the strong point, L-type transverse cut along flange plate front is cut, then, in the same way, cutting is completed along triangle transverse cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410746064.6A CN104588902B (en) | 2014-12-09 | 2014-12-09 | L-shaped notch of H-shaped steel and cutting technology of oblique notch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410746064.6A CN104588902B (en) | 2014-12-09 | 2014-12-09 | L-shaped notch of H-shaped steel and cutting technology of oblique notch |
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| CN104588902A true CN104588902A (en) | 2015-05-06 |
| CN104588902B CN104588902B (en) | 2017-02-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499747A (en) * | 2016-01-28 | 2016-04-20 | 中国海洋石油总公司 | Blanking process of H-beams |
| CN107584252A (en) * | 2017-09-22 | 2018-01-16 | 中国海洋石油总公司 | The packaging technology of steel tube end part saddle port |
| CN107825389A (en) * | 2017-11-21 | 2018-03-23 | 上海振华重工(集团)股份有限公司 | A kind of scribble method suitable on overlength H type rod members |
| CN112372155A (en) * | 2020-11-04 | 2021-02-19 | 上海柏楚电子科技股份有限公司 | Method for cutting I-steel and component |
| CN112388180A (en) * | 2020-11-04 | 2021-02-23 | 上海柏楚电子科技股份有限公司 | Method for cutting I-steel and component |
| CN112404595A (en) * | 2020-11-04 | 2021-02-26 | 上海柏楚电子科技股份有限公司 | Method for cutting I-steel and component |
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| JPH0390279A (en) * | 1989-08-31 | 1991-04-16 | Daihen Corp | Guidance jig for plasma arc cutting and positioning method |
| JPH05169253A (en) * | 1991-12-24 | 1993-07-09 | Tadashi Ota | Manual gas cutting device |
| JP2011041952A (en) * | 2009-08-19 | 2011-03-03 | Shinx Ltd | Beveling method for h-shaped steel |
| CN102359712A (en) * | 2011-09-14 | 2012-02-22 | 河南城建学院 | H-beam steel with broken line-shaped web and processing method |
| CN102489824A (en) * | 2011-12-08 | 2012-06-13 | 中国海洋石油总公司 | Three-cutting-torch robot H section steel automatic cutting system |
| CN102632313A (en) * | 2012-03-14 | 2012-08-15 | 中色十二冶金建设有限公司 | Cutting method of Z-shaped notch of H-shaped steel |
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2014
- 2014-12-09 CN CN201410746064.6A patent/CN104588902B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0390279A (en) * | 1989-08-31 | 1991-04-16 | Daihen Corp | Guidance jig for plasma arc cutting and positioning method |
| JPH05169253A (en) * | 1991-12-24 | 1993-07-09 | Tadashi Ota | Manual gas cutting device |
| JP2011041952A (en) * | 2009-08-19 | 2011-03-03 | Shinx Ltd | Beveling method for h-shaped steel |
| CN102359712A (en) * | 2011-09-14 | 2012-02-22 | 河南城建学院 | H-beam steel with broken line-shaped web and processing method |
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| CN102632313A (en) * | 2012-03-14 | 2012-08-15 | 中色十二冶金建设有限公司 | Cutting method of Z-shaped notch of H-shaped steel |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499747A (en) * | 2016-01-28 | 2016-04-20 | 中国海洋石油总公司 | Blanking process of H-beams |
| CN107584252A (en) * | 2017-09-22 | 2018-01-16 | 中国海洋石油总公司 | The packaging technology of steel tube end part saddle port |
| CN107825389A (en) * | 2017-11-21 | 2018-03-23 | 上海振华重工(集团)股份有限公司 | A kind of scribble method suitable on overlength H type rod members |
| CN112372155A (en) * | 2020-11-04 | 2021-02-19 | 上海柏楚电子科技股份有限公司 | Method for cutting I-steel and component |
| CN112388180A (en) * | 2020-11-04 | 2021-02-23 | 上海柏楚电子科技股份有限公司 | Method for cutting I-steel and component |
| CN112404595A (en) * | 2020-11-04 | 2021-02-26 | 上海柏楚电子科技股份有限公司 | Method for cutting I-steel and component |
| CN112404595B (en) * | 2020-11-04 | 2023-08-15 | 上海柏楚电子科技股份有限公司 | Cutting method and member for I-steel |
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| Publication number | Publication date |
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| CN104588902B (en) | 2017-02-22 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Offshore Oil Engineering (Qingdao) Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Offshore Oil Engineering (Qingdao) Co., Ltd. |
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