CN104588902B - 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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- CN104588902B CN104588902B CN201410746064.6A CN201410746064A CN104588902B CN 104588902 B CN104588902 B CN 104588902B CN 201410746064 A CN201410746064 A CN 201410746064A CN 104588902 B CN104588902 B CN 104588902B
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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
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- Conveying And Assembling Of Building Elements In Situ (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
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, a cutting operator then cuts the H-shaped steel along the cutting line on the back face of the flange slab 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, the L-type otch of more particularly, to a kind of H profile steel and the cutting work of angular cut
Skill, belongs to petrochemical industry, mechanical field.
Background technology
The modularized design of liquefied natural gas (LNG) plant and construction, have become as comply with world liquefied natural gas market one
Dominant technology trend.And a modularization liquefied natural gas (LNG) plant is then made up of hundreds of modules.And each module comprises：Number
Layer deck plate, the H profile steel brace rod member on each deck plate typically adopts " L " type otch, the cutting of angular cut, welding side
Formula, and connected as one with crossbeam or longeron by gusset.Build emergence and the development in market, module with Chinese modularization
Change project is increasing, and H profile steel also becomes a kind of trend using the connected mode of brace rod member, therefore, in the construction of module
During, the cutting stock of such 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 to H type
Steel wing plates on two sides is cut, then the web of H profile steel is cut, thus completing the cutting to whole H profile steel, but this kind of cuts
The mode of cutting has the disadvantage that：
1st, due to the vertical angle of cutting be with operating personnel personal feel carry out；Cutting result cannot be differentiated.Cause
This, easily cause the web surface of H profile steel, the triangular facet of wing plate forms coarse channel form；Make cut quality cannot meet production
Need, subsequently the amount of doing over again is big, therefore, leads to production cost higher；
2nd, due to being to ensure by object can balance and steadily during cutting by operating personnel itself；Therefore, not only lead
Cause the operation easier of operating personnel larger, labour intensity is high；And, cutting efficiency is relatively low, also brings hidden danger to safety in production；
3rd, because, during lower wing plate on cutting H profile steel both sides, produced burning, oxidation can make web surface cut
Line obscures or disappears；Accordingly, it would be desirable to be made up by secondary line, waste of time.
Content of the invention
Present invention is primarily targeted at overcoming the disadvantages mentioned above that prior art exists, and provide a kind of improved H profile steel
L-type otch and angular cut cutting technique, it is used support bar as the support of burning torch, and burning torch can not only be allowed smooth, smart
Really cut junction between H profile steel flange plate and web it is ensured that cut quality；And, up to a hundred rod members are carried out, greatly simultaneously
The earth reduces L-type otch and angular cut operation easier and the labour intensity of H profile steel；Simultaneously, it is to avoid the hidden danger of safety in production,
Reduce production cost.
The purpose of the present invention is realized by technical scheme below：
A kind of cutting technique of the L-type otch of H profile steel and angular cut it is characterised in that：Take following steps：
The first step：The web of H profile steel is in horizontal positioned state be placed in pad pier；Positive and negative in the flange plate of H profile steel
It is horizontal that two sides and web draw 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
Line of cut, triangle transverse cut；
Second step：Cutting personnel are cut along the vertical line of cut of triangle on H profile steel flange plate front；Then,
The otch being caused with the vertical line of cut of the triangle on flange plate front and the gap of web, for cutting starting point, are cut along web
Wire cutting to web end；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 being cut is upward；
4th step：Cutting personnel are cut further along the vertical line of cut of L-type；
5th step：One support bar is placed on the line of cut in flange plate front, under the auxiliary of support bar, is sequentially completed L
Type transverse cut, the cutting of triangle transverse cut；
6th step：H profile steel is overturn 180 degree, now, H profile steel erects, the H profile steel flange plate reverse side court not being cut
On；
7th step：Cutting personnel are cut along the vertical line of cut of triangle on H profile steel flange plate reverse side；Further along
The vertical line of cut of L-type on H profile steel flange plate reverse side is cut；Then, a support bar is placed in the cutting of flange plate reverse side
On line, under the auxiliary of support bar, successively L-type transverse cut, triangle transverse cut are cut, until will be whole
H profile steel cuts into the finished parts of required H profile steel.
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 the side of burning torch mouth is depended on
As the strong point on support bar, the L-type transverse cut along flange plate front is cut, then, in the same way, edge
Triangle transverse cut to complete to cut.
Beneficial effects of the present invention：Due to adopting technique scheme, it is used support bar propping up as burning torch to the present invention
Support, can not only allow burning torch smoothly, accurately between cutting H profile steel flange plate and web junction it is ensured that cut quality；And
And, up to a hundred rod members are carried out simultaneously, greatly reduce L-type otch and angular cut operation easier and the labour intensity of H profile steel；With
When, it is to avoid the hidden danger of safety in production, reduce production cost.
Brief description
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 uses support bar to cut schematic diagram for the present invention.
Fig. 7 for the present invention, H profile steel is cut after finished parts schematic diagram.
In figure Major Symbol explanation：
1.H shaped steel, 2. pad pier, 3. flange plate front, 4. flange plate reverse side, 5. web, 6. surplus line of cut, 7. triangle
Vertical line of cut, 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.
Specific embodiment
The present invention takes following steps：
The first step：As shown in Fig. 1 Fig. 5, the web 5 of H profile steel 1 is in horizontal positioned state and is placed in pad pier 2；?
The flange plate front 3 of H profile steel 1, flange plate reverse side 4 and web 5 draw H profile steel surplus line of cut, the vertical line of cut of triangle
7th, web line of cut 8, the vertical line of cut of L-type 9, L-type transverse cut 10, triangle transverse cut 11；
Second step：As shown in Figure 2 and Figure 3, cutting personnel are along the vertical line of cut of triangle 7 on H profile steel flange plate front
Cut；Then, the gap of the otch being caused with the vertical line of cut of the triangle on flange plate front 37 and web 5 is for cutting
Starting point, is cut to the end of web 5 along web line of cut 8；And unnecessary H can be cut away along H profile steel surplus line of cut 6 simultaneously
Shaped steel 1；
3rd step：As shown in fig. 6, according to the specification of H profile steel 1, by operating personnel or by the way of hoisting machinery lifting
H profile steel 1 is erected, now, the front flange plate 3 of the H profile steel 1 being cut is upward；
4th step：As shown in figure 3, cutting personnel are cut further along the vertical line of cut of L-type 9；
5th step：As shown in fig. 6, being placed in a support bar 12 on the line of cut in flange plate front 3, auxiliary in support bar 12
Help down, be sequentially completed L-type transverse cut 10, the cutting of triangle transverse cut 11；During cutting, according to burning torch mouth center extremely
Distance between burning torch mouth side, a support bar 12 is placed on the side line of cut in flange plate front 3, and the side by burning torch mouth
It is attached to as the strong point on support bar 12, the L-type transverse cut 10 along flange plate front 3 is cut, then, with same
Method, along triangle transverse cut 11 complete cut；
6th step：According to the specification of H profile steel 1, by operating personnel or by the way of hoisting machinery lifting, H profile steel 1 is turned over
Turnback, now, H profile steel 1 erects, and the H profile steel flange plate reverse side 4 not being cut is upward；
7th step：As shown in figure 5, cutting personnel are carried out along the vertical line of cut of triangle on H profile steel flange plate reverse side
Cutting；Cut further along the vertical line of cut of L-type on H profile steel flange plate reverse side；One support bar is placed in flange plate reverse side
Line of cut on, under the auxiliary of support bar, successively L-type transverse cut 10, triangle transverse cut 7 are cut,
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, be only presently preferred embodiments of the present invention, and not the present invention is made with any pro forma restriction, all
It is any simple modification, equivalent variations and modification above example made according to the technical spirit of the present invention, all still fall within
In the range of technical solution of the present invention.
Claims (3)
1. a kind of L-type otch of H profile steel and the cutting technique of angular cut it is characterised in that：Take following steps：
The first step：The web of H profile steel is in horizontal positioned state be placed in pad pier；On the positive and negative two sides of the flange plate of H profile steel
And web draws 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 cuts
Line, triangle transverse cut；
Second step：Cutting personnel are cut along the vertical line of cut of triangle on H profile steel flange plate front；Then, with the wing
The otch that the vertical line of cut of triangle on listrium front causes is cutting starting point with the gap of web, cuts along web line of cut
Cut to the end of web；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 being cut is upward；
4th step：Cutting personnel are cut further along the vertical line of cut of L-type；
5th step：One support bar is placed on the line of cut in flange plate front, under the auxiliary of support bar, is sequentially completed L-type horizontal
Cutting to line of cut, triangle transverse cut；
6th step：H profile steel is overturn 180 degree, now, H profile steel erects, the H profile steel flange plate reverse side not being cut is upward；
7th step：Cutting personnel are cut along the vertical line of cut of triangle on H profile steel flange plate reverse side；Then edge then,
The vertical line of cut of L-type on H profile steel flange plate reverse side is cut；Then, a support bar is placed in cutting of flange plate reverse side
On secant, under the auxiliary of support bar, successively L-type transverse cut, triangle transverse cut are cut, until will be whole
Individual H profile steel cuts into the finished parts of required H profile steel.
2. the L-type otch of H profile steel according to claim 1 and the cutting technique of angular cut it is characterised 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 characterised in that：Described 5th
In 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
Support point, the L-type transverse cut along flange plate front is cut, then, in the same way, along triangle transverse cuts
Line completes to 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
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| CN104588902A CN104588902A (en) | 2015-05-06 |
| CN104588902B true CN104588902B (en) | 2017-02-22 |
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| CN201410746064.6A Active 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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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499747B (en) * | 2016-01-28 | 2017-08-29 | 中国海洋石油总公司 | The technology for blanking of H profile steel |
| CN107584252B (en) * | 2017-09-22 | 2019-04-09 | 中国海洋石油集团有限公司 | The packaging technology of steel tube end part saddle port |
| CN107825389B (en) * | 2017-11-21 | 2019-11-08 | 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 piece |
| CN112388180B (en) * | 2020-11-04 | 2022-10-04 | 上海柏楚电子科技股份有限公司 | Method for cutting I-steel and component |
| CN112372155B (en) * | 2020-11-04 | 2022-10-04 | 上海柏楚电子科技股份有限公司 | Method and member for cutting I-steel |
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2841534B2 (en) * | 1989-08-31 | 1998-12-24 | 株式会社ダイヘン | Guide jig for plasma arc cutting and positioning method |
| JP2620010B2 (en) * | 1991-12-24 | 1997-06-11 | 正 太田 | 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 |
| CN102632313B (en) * | 2012-03-14 | 2013-10-23 | 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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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. |