CN1168568C - Continuous welding production method of light H-type steel - Google Patents
Continuous welding production method of light H-type steel Download PDFInfo
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- CN1168568C CN1168568C CNB021568219A CN02156821A CN1168568C CN 1168568 C CN1168568 C CN 1168568C CN B021568219 A CNB021568219 A CN B021568219A CN 02156821 A CN02156821 A CN 02156821A CN 1168568 C CN1168568 C CN 1168568C
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Abstract
The present invention relates to steel material deep processing and welding fields. The continuous welding producing method of the lightweight H-shaped steel of the present invention comprises the following process flows: uncoiling of strip steel, straightening, cutting and butt welding, looping and storage, web plate edge upsetting, preassembling, high-frequency welding, rapid cooling, straightening drawing, and cutting to length. The parameters of various technology periods are the pressure of edge upsetting is 500 to 8000Kgf; the micro tensility of the strip steel before welding is 50 to 1000Kgf; the welding speed of high frequency welding is 10 to 50 m/min; the weld power is 100 to 1000KW; the rapid cooling speed after welding is 1 to 30 DEG C /s. The present invention can be continuously produced, and has high productive efficiency. Finished products can be automatically cut into H-shaped steel of any specified lengths. The H-shaped steel has wide size ranges and can meet different requirements of users, and meanwhile, the steel material can be saved for more than 15%.
Description
Technical field
The present invention relates to steel deep processing field and welding field.
Background technology
Large H-shaped steel and light-duty H shaped steel have obtained application more and more widely in fields such as building and bridges, particularly along with the development of building field lightweight steel construction, more urgent to the demand of light-duty H shaped steel.
In the prior art, the production method of large H-shaped steel has two kinds, and the one, hot rolling, steel billet or slab roll into a H shaped steel, and limited length can not be produced continuously, and the 2nd, welding is welded by thicker steel plate, adopts the submerged-arc welding welding usually, and efficient is very low.For light-duty H shaped steel; because wall is thin; can not adopt the hot rolling mode to produce; can only adopt welding manner production; the light-duty H shaped steel of typical welding is to adopt carbon dioxide gas arc welding production (as Chinese patent 98206807.7 and 97243388.0); the welding manner that adopts monolithic to be interrupted, its production cost height, and efficient and yielding poorly.
Summary of the invention
The object of the present invention is to provide the continuous welding production method of a kind of production efficiency height, light-duty H shaped steel that cost is low.
At above-mentioned purpose, the present invention is a raw material with band steel that is used as light-duty H shaped steel wing plate and the band steel that is used as light-duty H shaped steel web, is assembled into H beam steel shape location, adopts the high-frequency welding method, produces light-duty H shaped steel continuously.Its concrete technological process comprises band steel uncoiling, band steel aligning, shears butt welding, kink storage, web pier limit, pre-group are upright, high-frequency welding, cooling fast, aligning are drawn, cutting to length.Existing division is as follows:
1, band steel uncoiling 1, aligning 2 and shearing butt welding 3
Be used as light-duty H shaped steel wing plate and a band steel coil of strip uncoiling on the uncoiler on three production lines respectively with two as light-duty H shaped steel web, entering the straightener aligning separately after the uncoiling, enter Shearing Butt Resistance Welder subsequently again, excision end to end with former and later two band steel, butt welding welding again makes level and smooth the coupling together of former and later two band steel.
2, the kink storage 4,5
Enter kink storage 4 and 5 respectively through uncoiling 1, aligning 2 and two wing plate band steel and a web band steel of shearing butt welding 3, store, its kink can be in horizontal loop or the vertical loop any.
3, compound plate pier limit 6
As the band steel of web after going out kink, promptly to enter pier limit device before the welding and carry out the pier limit, pier limit pressure is 500～8000Kgf, and the purpose on pier limit is to make more neat and consistent of web limit portion, makes it fashionable with two groups of vanes, contact more tight with wing plate, also make web limit portion thickening in addition, with the wing plate high-frequency welding after, weld seam is more plentiful, weld metal intensity be can improve, thereby the bulk strength and the quality of H shaped steel also improved.
4, pre-group upright 7
After going out pier limit device, the web band steel behind the pier limit 6 enters pre-group of upright machine, and two wing plate band steel also enter simultaneously pre-group of upright machine with web band steel after going out kink in the lump, three band steel are organized upright in the upright machine of pre-group in advance, be assembled into the shape of H shaped steel, for making shape localization, be in the power state that parts a little between two kinds of band steel, the power of parting a little is 50～1000Kgf.
5, high-frequency welding 8
Good through assembly unit, and pre-group of upright H shaped steel of location, enter the ratio-frequency welding unit by the registration roller clamping, parting a little under the power state, carry out high-frequency welding, its welding parameter is:
Speed of welding 10～50m/min
Bonding power 100～1000KW
6, cooling 9
Shaping H shaped steel after high-frequency welding enters in the accelerated cooling device immediately at postwelding, cools off fast, and control cooling velocity, butt welded seam carries out online heat treatment, makes the weld seam of H shaped steel obtain required tissue and performance, to guarantee to obtain meeting the high-quality H shaped steel of instructions for use.
7, the aligning traction 10
Enter the aligning hauling machine through quick cooled H shaped steel and align, promptly become light-duty H shaped steel of the present invention behind the aligning.The aligning hauling machine is aligned the inclination of welding back H shaped steel wing plate, the camber of H shaped steel, carries out smooth to web simultaneously.
The aligning hauling machine also provides power for the upright machine of pre-group, high-frequency welding unit and accelerated cooling device simultaneously.
8, cutting to length 11
H shaped steel behind the aligning enters the cutting to length machine and carries out cutting to length, obtains the H shaped steel of the length that requires after the shearing.
Compared with prior art, the present invention has following advantage:
1, adopts high-frequency welding production, realize serialization production, the production efficiency height.
2, the H shaped steel of random length can be automatic gauging sheared,, also steel can be saved for the user provides good condition.
3, light-duty H shaped steel size range of the present invention is wide, can be: 100 * 50 * 2.3/3.2～400 * 200 * 6/8, perhaps book more, and be raw material with the band steel, the light book of wall and evenly, cross section property is better.
4, aspect range of application and characteristic, light-duty H shaped steel is applicable to lightweight steel construction, can alleviate construction weight, and the utilization rate height, uses the light-duty H shaped steel of the present invention to build factory building or office building or residential building, than using the light H shaped steel of heat can save steel more than 15%.
Description of drawings
Accompanying drawing 1 is the process flow diagram of the continuous welding production method of the light-duty H shaped steel of the present invention.
Among the figure, 1 for band steel uncoiling, 2 for band steel aligning, 3 for shear butt welding, 4 and 5 for kink storage, 6 be web pier limit, 7 upright for pre-group, 8 draw, 11 be cutting to length for aligning for cooling fast, 10 for high-frequency welding, 9.
The specific embodiment
Adopt the continuous welding production method of light-duty H shaped steel of the present invention, 4 batches of light-duty H shaped steel have been produced in the technological process of, high-frequency welding upright according to uncoiling, aligning, shearing butt welding, kink storage, web pier limit, pre-group, acceleration cooling, aligning and cutting to length.The cut lengths of the size of the band steel steel grade that is adopted, light-duty H shaped steel and final shaped steel, as shown in table 1, the technological parameter that need control in technological process: abdomen abutment pier limit pressure, the power that parts a little, the high-frequency welding parameter between the upright two kinds of band steel of pre-group, quicken cooling velocities and list in the table 2.
Table 1 embodiment light-duty H shaped steel size and steel grade
| Lot number | Steel grade | Shaped steel size (mm) | Cut lengths (m) |
| 1 | The Q235 steel | 100×50×2.3×3.2 | 6.0 |
| 2 | The Q235 steel | 200×100×3.0×3.0 | 8.0 |
| 3 | The Q235 steel | 300×150×3.2×4.5 | 10.0 |
| 4 | The Q235 steel | 400×200×6.0×8.0 | 12.0 |
The relevant technological parameter of table 2 embodiment
| Lot number | Pier limit pressure Kgf | The upright power Kgf that parts a little of group | Welding parameter | Cooling velocity ℃/s | |
| Speed of welding m/min | Bonding power KW | ||||
| 1 | 1500 | 100 | 35 | 200 | 6 |
| 2 | 3000 | 200 | 30 | 460 | 9 |
| 3 | 3500 | 300 | 28 | 500 | 14 |
| 4 | 6000 | 700 | 20 | 800 | 20 |
Claims (2)
1, a kind of continuous welding production method of light-duty H shaped steel is characterized in that its technological process comprises band steel uncoiling (1), band steel aligning (2), shearing butt welding (3), kink storage (4,5), web pier limit (6), pre-group upright (7), high-frequency welding (8), quick cooling (9), aligning traction (10) and cutting to length (11):
1. be with steel uncoiling (1), aligning (2) and shear butt welding (3)
Band steel uncoiling (1), aligning (2) carry out on the uncoiler of routine and straightener, and the shearing of band steel is carried out being welded on the general butt welding machine;
2. kink storage (4,5)
The kink storage is divided into wing plate kink (4) and web kink (5), and the band steel that is used as H shaped steel wing plate enters kink (4) after shearing butt welding, and the band steel that is used as H shaped steel web enters kink (5) after shearing butt welding;
3. compound plate pier limit (6)
Carry out on the device of pier limit on compound plate pier limit (6), and pier limit pressure is 500～8000Kgf;
4. pre-group is upright
Article two, the band steel as wing plate enters pre-group of upright machine by kink, article one, the band steel as web is also entering pre-group of upright machine simultaneously behind the pier limit, in the upright machine of pre-group, organize upright in the lump in advance, be assembled into the H beam steel shape, and location, apply the power of parting a little between two kinds of band steel, the power of parting a little is 50～1000Kgf;
5. high-frequency welding (8)
Pre-group of upright H shaped steel of the H beam steel shape of assembly unit and location is entered the high-frequency welding unit by the registration roller clamping carry out high-frequency welding under the power state parting a little, welding parameter is:
Speed of welding 10～50m/min
Bonding power 100～1000KW
6. cooling (9)
Enter in the accelerated cooling device immediately at postwelding through the moulding H shaped steel after the high-frequency welding and to cool off fast, cooling velocity is: 1-30 ℃/s;
7. align (10)
Directly enter the aligning hauling machine through cooled H shaped steel and align, be H shaped steel of the present invention behind the aligning.
2, production method according to claim 1 is characterized in that can selecting in horizontal loop or the vertical loop any for use as the kink of wing plate band steel with as the kink of web band steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021568219A CN1168568C (en) | 2002-12-19 | 2002-12-19 | Continuous welding production method of light H-type steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021568219A CN1168568C (en) | 2002-12-19 | 2002-12-19 | Continuous welding production method of light H-type steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1411940A CN1411940A (en) | 2003-04-23 |
| CN1168568C true CN1168568C (en) | 2004-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021568219A Expired - Fee Related CN1168568C (en) | 2002-12-19 | 2002-12-19 | Continuous welding production method of light H-type steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056610A (en) * | 2012-12-18 | 2013-04-24 | 湖北弘毅钢结构工程有限公司 | H-shaped steel online continuous production method |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308117C (en) * | 2003-09-29 | 2007-04-04 | 上海宝钢建筑工程设计研究院 | Steel band side treating process |
| CN102059524A (en) * | 2010-12-30 | 2011-05-18 | 山东杭萧钢构有限公司 | Fabricating process of full-web welding H-type steel member |
| CN102335822B (en) * | 2011-10-17 | 2013-05-08 | 无锡市南方电器制造有限公司 | H-shaped steel heavy welding production line |
| CN103537880B (en) * | 2012-07-17 | 2016-03-30 | 宝山钢铁股份有限公司 | A kind of welding method of laser welder high-strength steel |
| CN102862034B (en) * | 2012-09-29 | 2014-11-05 | 湖北弘毅钢结构工程有限公司 | Continuous production method for corrugated web H-beam |
| CN103862227A (en) * | 2012-12-10 | 2014-06-18 | 烟台新科钢结构有限公司 | Process method for producing corrugated web plate H-steel |
| CN106078216B (en) * | 2016-05-25 | 2018-04-10 | 苏州荣盾人防工程防护设备有限公司 | Angle steel welds and straightening system and angle steel pinch roller bed device |
| CN106078112B (en) * | 2016-07-21 | 2018-07-20 | 滁州南钢盛达实业有限公司 | A kind of production technology of H profile steel |
| CN109604958B (en) * | 2018-12-17 | 2021-03-19 | 上海戴马冷弯型钢发展有限公司 | Continuous production process and system for producing embedded channel by using strip steel |
| CN109967841A (en) * | 2019-04-24 | 2019-07-05 | 滦县众兴钢构有限公司 | A kind of production method automating submerged arc welding H profile steel |
-
2002
- 2002-12-19 CN CNB021568219A patent/CN1168568C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056610A (en) * | 2012-12-18 | 2013-04-24 | 湖北弘毅钢结构工程有限公司 | H-shaped steel online continuous production method |
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| CN1411940A (en) | 2003-04-23 |
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