CN101844279A - Manufacturing process for accurate connection of large-scale steel structure members and flanges - Google Patents
Manufacturing process for accurate connection of large-scale steel structure members and flanges Download PDFInfo
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- CN101844279A CN101844279A CN 201010193954 CN201010193954A CN101844279A CN 101844279 A CN101844279 A CN 101844279A CN 201010193954 CN201010193954 CN 201010193954 CN 201010193954 A CN201010193954 A CN 201010193954A CN 101844279 A CN101844279 A CN 101844279A
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Abstract
The invention relates to a manufacturing process for the accurate connection of large-scale steel structure members and flanges, which is characterized in that: rough selvedges on edges of the flanges are removed, and the two flanges are in close connection and are drilled commonly by using a numerical control drilling machine; a plurality of code plates are distributed on peripheral edges of the two flanges uniformly by using a spot-welding method; the end part of a box beam or an I beam which is machined into a semi-finished product is cut to form a beveled edge; lofting is performed on a working platform to mark off a structure size line, the box beam or the I beam, after being put on the working platform straightly, is fixed by using a baffle and a wedge, the flanges are put to the connection positions of connected pieces and are fixed by adopting a spot-welding method, and then the flanges are welded completely, cooled for 24 to 48 hours and subjected to non-destructive inspection; and a reinforcing rib plate is welded at the joint of the box beam or the I beam. The manufacturing process has the advantages that: the problem of difficult control of the accuracy of the connection among the large-scale steel structure members and the flanges is solved; the field installation and operation are quick; and the welding quality of flange connection is ensured and the production cost and time are saved while high machining efficiency is realized.
Description
Technical field
The invention belongs to the mounting process in the large-scale steel structure processing, relate in particular to a kind of manufacture craft that large-scale steel structure members and flanges accurately connects that is used for.
Background technology
In large-scale steel structure production manufacture process, such as box-like body or H formed steel construction body, their installation type of attachment often adopts flange to connect, and general employing of traditional method directly welds together flange and connected piece.Since yielding during the flange welding, cause two flange contact facings not fitted, and the axiality in hole also is difficult to guarantee.Especially slab flange connector, its welding bead leg is bigger, and the distortion that the welding rear flange produces is more obvious, the easier adpting flange out of plumb that causes, flatness is defective, problems such as pitch-row accuracy error, and then cause difficulty for follow-up construction, and this problem is in case formation is difficult to reparation and compensation.Above-mentioned technological problems needs to be resolved hurrily in the manufacturing of large-scale steel structure production.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, a kind of manufacture craft that large-scale steel structure members and flanges accurately connects that is used for is provided, avoid the distortion of flange welding, in allowed band, meet the crudy requirement with the geometric accuracy Deviation Control that guarantees flange face flatness, perpendicularity and pitch-row.
The present invention is achieved through the following technical solutions for achieving the above object, a kind of accurately manufacture craft of connection of large-scale steel structure members and flanges that is used for, and it is characterized in that: the concrete operations flow process is:
(1) smooth flange face and spot welding: remove flange periphery burr and blemish thereof, guarantee its applying precision, two flanges are adjacent to and are fastenedly connected, hole jointly with two flanges that numerical control drilling machine will be adjacent to; Use the uniform fixing some block code plates of dot welding method in the position, two flange edges that is adjacent to;
(2) welding of box-girder or I-beam is prepared: with connected piece---and be processed as half-finished box-girder or I-beam and do the end cut groove, point is welded with backing plate in the casing of the box-girder of described employing full penetration welder skill;
(3) welding of box-girder or I-beam and adpting flange: setting-out marks the physical dimension line on workbench, with put on box-girder or the I-beam workbench straight after, with baffle plate and chock fixed case ellbeam or I-beam, the flange of above-mentioned some postwelding is placed into the position that is connected with box-girder or I-beam, centering center line or outline line adopt dot welding method with the flange fixation, and then all welding, cool off after 24 hours to 48 hours, carry out Non-Destructive Testing;
(4) detect qualified after, strengthen gusset at box-girder or I-beam junction welding triangle.
Beneficial effect: solved box-like body or shaped steel and the unmanageable problem of flange production precision, and be applicable to making in enormous quantities, can effectively guarantee demand of technical standard.On-the-spot fitting operation is quick, is realizing the high efficiency while of processing, has guaranteed the welding quality that flange connects, and has reduced percent defective, and then has saved production cost and time.
Description of drawings
Fig. 1 is the accurate syndeton schematic diagram of box-girder of the present invention and flange;
Fig. 2 is the A-A view among Fig. 1;
Fig. 3 is the B-B view among Fig. 1;
Fig. 4 is the accurate syndeton schematic diagram of I-beam and flange;
Fig. 5 is the side view of Fig. 4.
Among the figure: 1 yard plate, 2, box-girder, 3,4, flange, 5, I-beam, 6, strengthen gusset.
The specific embodiment
Below in conjunction with preferred embodiment, to details are as follows according to the specific embodiment provided by the invention:
See Fig. 1-3 for details, a kind of accurately manufacture craft of connection of large-scale steel structure members and flanges that is used for, the concrete operations flow process is: (1) smooth flange face and spot welding: remove flange periphery burr and other blemish, guarantee its applying precision, two flanges 3,4 are adjacent to and are fastenedly connected, hole jointly with two flanges that numerical control drilling machine will be adjacent to, can guarantee the axiality of corresponding aperture on two flanges, convenient follow-up installation; With the uniform some blocks of steel sign indicating number plates 1 of dot welding method, can adjust sign indicating number plate quantity and interval in the position, two flange edges that is adjacent to, can make two flanges after through welding, still can guarantee good applying and quality of connection according to the size of flange;
(2) welding of box-girder or I-beam 2 or 5 is prepared: according to common process with connected piece---promptly be processed as half-finished box-girder or I-beam and do end cut groove (not shown) and make it meet specification requirement, adopt dot welding method in the casing of the box-girder of described employing full penetration welder skill, to guarantee the backing plate that when welding can penetration, firmly weld in order to backing plate and casing;
(3) welding of box-girder or I-beam and adpting flange: setting-out marks the physical dimension line on workbench, with put on box-girder or the I-beam workbench straight after, with baffle plate and chock fixed case ellbeam or I-beam, baffle plate and chock can batch makings as frock, the flange of above-mentioned some postwelding is placed into the position that is connected with box-girder or I-beam, centering center line or outline line, adopt dot welding method with the flange fixation, and then all welding, cool off after 24 hours to 48 hours, carry out Non-Destructive Testing;
(4) detect qualified after, strengthen gusset 6 at box-girder or I-beam junction welding triangle.The i.e. all completions of this operation afterwards.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. one kind is used for the manufacture craft that large-scale steel structure members and flanges accurately connects, and it is characterized in that: the concrete operations flow process is:
(1) smooth flange face and spot welding: remove flange periphery burr and blemish thereof, guarantee its applying precision, two flanges are adjacent to and are fastenedly connected, hole jointly with two flanges that numerical control drilling machine will be adjacent to; Use the uniform fixing some block code plates of dot welding method in the position, two flange edges that is adjacent to;
(2) welding of box-girder or I-beam is prepared: with connected piece---and be processed as half-finished box-girder or I-beam and do the end cut groove, point is welded with backing plate in the casing of the box-girder of described employing full penetration welder skill;
(3) welding of box-girder or I-beam and adpting flange: setting-out marks the physical dimension line on workbench, with put on box-girder or the I-beam workbench straight after, with baffle plate and chock fixed case ellbeam or I-beam, the flange of above-mentioned some postwelding is placed into the position that is connected with box-girder or I-beam, centering center line or outline line adopt dot welding method with the flange fixation, and then all welding, cool off after 24 hours to 48 hours, carry out Non-Destructive Testing;
(4) detect qualified after, strengthen gusset at box-girder or I-beam junction welding triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193954 CN101844279B (en) | 2010-06-08 | 2010-06-08 | Manufacturing process for accurate connection of large-scale steel structure members and flanges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193954 CN101844279B (en) | 2010-06-08 | 2010-06-08 | Manufacturing process for accurate connection of large-scale steel structure members and flanges |
Publications (2)
| Publication Number | Publication Date |
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| CN101844279A true CN101844279A (en) | 2010-09-29 |
| CN101844279B CN101844279B (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010193954 Active CN101844279B (en) | 2010-06-08 | 2010-06-08 | Manufacturing process for accurate connection of large-scale steel structure members and flanges |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761239A (en) * | 2020-05-16 | 2020-10-13 | 弗朗电气有限公司 | Method for processing inner and outer flanges of explosion-proof electrical appliance box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0373295B1 (en) * | 1988-12-07 | 1992-09-30 | Rhone-Poulenc Rhodia Aktiengesellschaft | Process for the manufacture of a warp beam, and warp beam made by this process |
| JP2001105171A (en) * | 1999-10-01 | 2001-04-17 | Watahan Technos Kk | Method for welding steel frame beam and steel frame column, and joing structure |
| CN101104226A (en) * | 2006-07-12 | 2008-01-16 | 上海重型机器厂有限公司 | Method for controlling revolving furnace shell connecting flange weld deformation |
| CN101412157A (en) * | 2008-11-21 | 2009-04-22 | 中信重工机械股份有限公司 | Control method of large-sized mining grinding mill end flange welding deformation |
-
2010
- 2010-06-08 CN CN 201010193954 patent/CN101844279B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0373295B1 (en) * | 1988-12-07 | 1992-09-30 | Rhone-Poulenc Rhodia Aktiengesellschaft | Process for the manufacture of a warp beam, and warp beam made by this process |
| JP2001105171A (en) * | 1999-10-01 | 2001-04-17 | Watahan Technos Kk | Method for welding steel frame beam and steel frame column, and joing structure |
| CN101104226A (en) * | 2006-07-12 | 2008-01-16 | 上海重型机器厂有限公司 | Method for controlling revolving furnace shell connecting flange weld deformation |
| CN101412157A (en) * | 2008-11-21 | 2009-04-22 | 中信重工机械股份有限公司 | Control method of large-sized mining grinding mill end flange welding deformation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761239A (en) * | 2020-05-16 | 2020-10-13 | 弗朗电气有限公司 | Method for processing inner and outer flanges of explosion-proof electrical appliance box |
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| Publication number | Publication date |
|---|---|
| CN101844279B (en) | 2012-11-07 |
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Denomination of invention: Manufacturing process for accurate connection of large-scale steel structure members and flanges Effective date of registration: 20191113 Granted publication date: 20121107 Pledgee: Tianjin SME Credit Financing Guarantee Center Pledgor: Tianjin Chonggang Machinery Equipment Co., Ltd. Registration number: Y2019120000016 |
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Date of cancellation: 20210413 Granted publication date: 20121107 Pledgee: Tianjin SME Credit Financing Guarantee Center Pledgor: TIANJIN HEAVY STEEL MECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2019120000016 |