CN103447708A - Method of preventing welding deformation of steel plate base for steel structure having steel plate base - Google Patents
Method of preventing welding deformation of steel plate base for steel structure having steel plate base Download PDFInfo
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- CN103447708A CN103447708A CN 201310431590 CN201310431590A CN103447708A CN 103447708 A CN103447708 A CN 103447708A CN 201310431590 CN201310431590 CN 201310431590 CN 201310431590 A CN201310431590 A CN 201310431590A CN 103447708 A CN103447708 A CN 103447708A
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Abstract
The invention provides a method of preventing welding deformation of a steel plate base for a steel structure having the steel plate base. The method includes the steps of adjusting flatness and levelness of a steel welding bench, presetting an anti-deformation tool for the steel plate base, placing the steel plate base of the steel structure, proofing deformation of the steel plate base, and fixing the steel plate base by means of spot welding. The steel plate base is subjected to forced deformation proofing; before welding of other parts on the steel plate base, the edge levelness of the steel plate base is partly lower than the central levelness under the forcing action of U-shaped iron clamps and wedged iron brakes in advance, the edge level is opposite to the direction of welding deformation, the effect of welding deformation is canceled, and the welding deformation of the steel plate base in the steel structure having the steel plate base is controlled within the range of +/-2mm; the welding deformation of products welded by the method compared to the traditional welding process is reduced greatly, rate of welded products is increased significantly, machining efficiency is improved largely, product quality is improved greatly, and the service life of the welded steel structure is prolonged.
Description
Technical field
The present invention relates to a kind of method of anti-welding deformation, especially with the steel member of steel plate base, prevent the method for steel plate base welding deformation
.
Background technology
At present, control welding deformation is a technique difficult problem always, to required precision high parts often welding deformation amount will be controlled at ± 2mm scope in.But, the steel Member Welding of take with the steel plate base is example, existing process is because the inhomogeneous meeting of welding capacity of each parts on the steel plate base causes reach ± 6-8mm of steel plate base plane distortion, sometimes even higher, the built-up welding of often need to doing over again, reduce production efficiency, the stress of steel component inside increases simultaneously, has reduced service life.
Summary of the invention
The objective of the invention is for overcoming at present the excessive shortcoming of steel member steel plate base welding deformation with the steel plate base.
For achieving the above object, the technical solution used in the present invention is as follows:
The method of the anti-steel plate base welding deformation of a kind of member of the steel with the steel plate base is provided, comprises the following steps:
(1) adjust welded steel workbench flatness and levelness: use sanding machine to the polishing of welding workbench, the flatness that makes the welding job platform is 0.5-1mm; The levelness of usage level instrument adjustment welding job platform, the levelness that makes the welding job platform is 0.2-0.5mm;
(2) Anti-deformation tooling of preset steel plate base: the rectangle steel plate Anti-deformation tooling that is 2-4mm by two thickness is symmetrically arranged on the welding job platform, the horizontal longitudinal axis of two block plates point-blank and levelness be consistent, the flatness of steel plate is identical with the welding job platform;
(3) place the steel plate base of steel member: the steel plate base that flatness is identical with the welding job platform is placed on the welding job platform, and its light plate base central region is positioned on the described two block plate Anti-deformation toolings of step (2);
(4) steel plate base reversible deformation: around the steel plate base, keep at a certain distance away, the neutral place formed between steel plate base and welding job platform inserts a plurality of U-shaped gibs, the steel plate base is sticked in the U-shaped groove of U-shaped gib, U-shaped slot thickness, the distance between two parallel-plates is than the long 2-4mm of the thickness of steel plate base, the wedge shape iron of stopping is inserted in the gap that forms between U-shaped gib and steel plate base upper surface, with the continuous hammering of the iron hammer compacting wedge shape iron of stopping, make it be clamped between U-shaped gib and steel plate base and the steel plate base edge is bent downwardly, make the levelness of steel plate base edge lower than central horizontal degree 2-3mm,
(5) spot welding fixation steel plate base: in U-shaped gib and the place's spot welding of welding job contact with platform, fusion length 40-60mm, be fixed in the steel plate base on the welding job platform.
The present invention adopts and forces reversible deformation technique the steel plate base, in advance by U-shaped gib and wedge shape, stop levelness that iron makes the steel plate base edge to the positive action of steel plate base lower than the central horizontal degree to a certain degree before other Member Weldings on the steel plate base, opposite direction with welding deformation, offset the impact of welding deformation, make in the be controlled at ± 2mm of welding deformation amount with the steel member steel plate base of steel plate base, compare traditional welding technique, welding deformation amount reduces greatly, the yield rate of welding fabrication significantly improves, working (machining) efficiency is promoted significantly, product quality is improved greatly, improved the service life of the steel member of welding fabrication.
The accompanying drawing explanation
Fig. 1 is welding procedure schematic diagram of the present invention.
In figure: 1. welding job platform, 2. steel plate base, 3. Anti-deformation tooling, 4. U-shaped gib, 5. the wedge shape iron of stopping.
The specific embodiment
Below by two embodiment, also the invention will be further described by reference to the accompanying drawings:
The method of the anti-steel plate base welding deformation of a kind of member of the steel with the steel plate base comprises the following steps:
(1) adjust welded steel workbench flatness and levelness: use sanding machine to 1 polishing of welding workbench, the flatness that makes welding job platform 1 is 0.5mm; The levelness of usage level instrument adjustment welding job platform 1, the levelness that makes welding job platform 1 is 0.2mm;
(2) Anti-deformation tooling of preset steel plate base: the rectangle steel plate Anti-deformation tooling 3 that is 2mm by two thickness is symmetrically arranged on welding job platform 1, the horizontal longitudinal axis of two block plates point-blank and levelness be consistent, the flatness of steel plate is identical with the welding job platform;
(3) place the steel plate base of steel member: the steel plate base 2 that flatness is identical with welding job platform 1 is placed on welding job platform 1, and its light plate base 2 central region are positioned on the described two block plate Anti-deformation toolings 3 of step (2);
(4) steel plate base reversible deformation: around steel plate base 2, keep at a certain distance away, the neutral place formed between steel plate base 2 and welding job platform 1 inserts a plurality of U-shaped gibs 4, steel plate base 2 is sticked in the U-shaped groove of U-shaped gib 4, U-shaped slot thickness, the distance between two parallel-plates is than the long 2mm of the thickness of steel plate base 2, the wedge shape iron 5 of stopping is inserted in the gap that forms between U-shaped gib 4 and steel plate base 2 upper surfaces, with the continuous hammering of the iron hammer compacting wedge shape iron 5 of stopping, make it be clamped between U-shaped gib 4 and steel plate base 2 and steel plate base 2 edges are bent downwardly, make the levelness at steel plate base 2 edges lower than central horizontal degree 2mm,
(5) spot welding fixation steel plate base: in U-shaped gib 4 and the 1 contact position spot welding of welding job platform, fusion length 40mm, be fixed in steel plate base 2 on welding job platform 1.
Embodiment 2
The method of the anti-steel plate base welding deformation of a kind of member of the steel with the steel plate base comprises the following steps:
(1) adjust welded steel workbench flatness and levelness: use sanding machine to 1 polishing of welding workbench, the flatness that makes welding job platform 1 is 1mm; The levelness of usage level instrument adjustment welding job platform 1, the levelness that makes welding job platform 1 is 0.5mm;
(2) Anti-deformation tooling of preset steel plate base: the rectangle steel plate Anti-deformation tooling 3 that is 4mm by two thickness is symmetrically arranged on welding job platform 1, the horizontal longitudinal axis of two block plates point-blank and levelness be consistent, the flatness of steel plate is identical with the welding job platform;
(3) place the steel plate base of steel member: the steel plate base 2 that flatness is identical with welding job platform 1 is placed on welding job platform 1, and its light plate base 2 central region are positioned on the described two block plate Anti-deformation toolings 3 of step (2);
(4) steel plate base reversible deformation: around steel plate base 2, keep at a certain distance away, the neutral place formed between steel plate base 2 and welding job platform 1 inserts a plurality of U-shaped gibs 4, steel plate base 2 is sticked in the U-shaped groove of U-shaped gib 4, U-shaped slot thickness, the distance between two parallel-plates is than the long 4mm of the thickness of steel plate base 2, the wedge shape iron 5 of stopping is inserted in the gap that forms between U-shaped gib 4 and steel plate base 2 upper surfaces, with the continuous hammering of the iron hammer compacting wedge shape iron 5 of stopping, make it be clamped between U-shaped gib 4 and steel plate base 2 and steel plate base 2 edges are bent downwardly, make the levelness at steel plate base 2 edges lower than central horizontal degree 3mm,
(5) spot welding fixation steel plate base: in U-shaped gib 4 and the 1 contact position spot welding of welding job platform, fusion length 60mm, be fixed in steel plate base 2 on welding job platform 1.
Claims (1)
1. the method for the anti-steel plate base welding deformation of the member of the steel with the steel plate base is characterized in that comprising the following steps:
(1) adjust welded steel workbench flatness and levelness: use sanding machine to the polishing of welding workbench, the flatness that makes the welding job platform is 0.5-1mm; The levelness of usage level instrument adjustment welding job platform, the levelness that makes the welding job platform is 0.2-0.5mm;
(2) Anti-deformation tooling of preset steel plate base: the rectangle steel plate Anti-deformation tooling that is 2-4mm by two thickness is symmetrically arranged on the welding job platform, the horizontal longitudinal axis of two block plates point-blank and levelness be consistent, the flatness of steel plate is identical with the welding job platform;
(3) place the steel plate base of steel member: the steel plate base that flatness is identical with the welding job platform is placed on the welding job platform, and its light plate base central region is positioned on the described two block plate Anti-deformation toolings of step (2);
(4) steel plate base reversible deformation: around the steel plate base, keep at a certain distance away, the neutral place formed between steel plate base and welding job platform inserts a plurality of U-shaped gibs, the steel plate base is sticked in the U-shaped groove of U-shaped gib, U-shaped slot thickness, the distance between two parallel-plates is than the long 2-4mm of the thickness of steel plate base, the wedge shape iron of stopping is inserted in the gap that forms between U-shaped gib and steel plate base upper surface, with the continuous hammering of the iron hammer compacting wedge shape iron of stopping, make it be clamped between U-shaped gib and steel plate base and the steel plate base edge is bent downwardly, make the levelness of steel plate base edge lower than central horizontal degree 2-3mm,
(5) spot welding fixation steel plate base: in U-shaped gib and the place's spot welding of welding job contact with platform, fusion length 40-60mm, be fixed in the steel plate base on the welding job platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310431590 CN103447708A (en) | 2013-09-22 | 2013-09-22 | Method of preventing welding deformation of steel plate base for steel structure having steel plate base |
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|---|---|---|---|
| CN 201310431590 CN103447708A (en) | 2013-09-22 | 2013-09-22 | Method of preventing welding deformation of steel plate base for steel structure having steel plate base |
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| CN103447708A true CN103447708A (en) | 2013-12-18 |
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| CN 201310431590 Pending CN103447708A (en) | 2013-09-22 | 2013-09-22 | Method of preventing welding deformation of steel plate base for steel structure having steel plate base |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931944A (en) * | 2017-11-30 | 2018-04-20 | 中国冶集团有限公司 | A kind of steel construction large-diameter pipeline butt welding erecting device and construction method |
| CN110280951A (en) * | 2019-07-05 | 2019-09-27 | 沪东中华造船(集团)有限公司 | A kind of welding method of ship special equipment pedestal |
| CN110440156A (en) * | 2019-08-30 | 2019-11-12 | 新月光电（深圳）股份有限公司 | The ruggedized construction of LED lamp bead pedestal |
-
2013
- 2013-09-22 CN CN 201310431590 patent/CN103447708A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931944A (en) * | 2017-11-30 | 2018-04-20 | 中国冶集团有限公司 | A kind of steel construction large-diameter pipeline butt welding erecting device and construction method |
| CN110280951A (en) * | 2019-07-05 | 2019-09-27 | 沪东中华造船(集团)有限公司 | A kind of welding method of ship special equipment pedestal |
| CN110440156A (en) * | 2019-08-30 | 2019-11-12 | 新月光电（深圳）股份有限公司 | The ruggedized construction of LED lamp bead pedestal |
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Application publication date: 20131218 |
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| WD01 | Invention patent application deemed withdrawn after publication |