CN101590568A - Thick plate automatic vertical position welding method - Google Patents
Thick plate automatic vertical position welding method Download PDFInfo
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- CN101590568A CN101590568A CNA200810038379XA CN200810038379A CN101590568A CN 101590568 A CN101590568 A CN 101590568A CN A200810038379X A CNA200810038379X A CN A200810038379XA CN 200810038379 A CN200810038379 A CN 200810038379A CN 101590568 A CN101590568 A CN 101590568A
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Abstract
The present invention relates to solder technology, relate in particular to thick plate automatic welding method.A kind of thick plate automatic vertical position welding method, it comprises welding machine, described welding machine has the torch swinging device, it comprise the following steps: the sheet material bevel, the group to and cleanup step, described groove is V-butt or double V groove; The welding machine installation steps, it comprises tack welding or welds locator card, striking and blow-out plate are set, install and lead and climbing device and water-cooling system; Welding step is welded while welding gun swung in bevel for welding; Cleaning and inspection step, welding finishes, trimming, and do outward appearance and Non-Destructive Testing.The present invention can reduce by 15～20% loading than common electroslag welding with wire, can reduce weld heat input greatly, has both saved wlding, can improve the impact flexibility of joint again.
Description
Technical field
The present invention relates to solder technology, relate in particular to thick plate automatic welding method.
Background technology
The welding wire of common electroslag welding with wire is fixed, and groove type will satisfy root through welding, surface fusion, and general loading is bigger, and weld heat input is big, and welding point toughness is low.The welding above slab of 90mm (double V groove, welding by both sides), the as-welded low temperature of welding point (0 ℃) toughness does not reach standard-required.The product that the butt joint toughness reguirements is high, postwelding, weld seam will carry out normalizing heat treatment and improve joint performance.For the produce in factory weld seam is to have ready conditions that to carry out normalizing heat treated, but for the scene assembling or the field joint of main equipment or member, is not possess the heat treated condition of normalizing.Other welding methods can only be adopted in the scene, as manual electric arc welding, carbon dioxide gas arc welding etc., and need weld preheating, efficient also lower.
Summary of the invention
The present invention is intended to solve the above-mentioned defective of existing thick plates technology, and a kind of thick plate automatic vertical position welding method is provided.The present invention can reduce by 15～20% loading than common electroslag welding with wire, can reduce weld heat input greatly, has both saved wlding, can improve the impact flexibility of joint again.
A kind of thick plate automatic vertical position welding method, it comprises welding machine, and described welding machine has the torch swinging device, and it comprises the following steps:
The sheet material bevel, the group to and cleanup step, described groove is V-butt or double V groove;
The welding machine installation steps, it comprises tack welding or welds locator card, striking and blow-out plate are set, install and lead and climbing device and water-cooling system;
Welding step is welded while welding gun swung in bevel for welding;
Cleaning and inspection step, welding finishes, trimming, and do outward appearance and Non-Destructive Testing.
Described thick plate automatic vertical position welding method, described V-butt are suitable for welding the sheet material of thickness of slab smaller or equal to 40-70mm, and described welding step also comprises: welding and weld cleaning.
Described thick plate automatic vertical position welding method,, described double V groove is suitable for the sheet material of thickness of slab greater than 70mm-140, and described welding also step comprises: welding front groove, back gouging, welding underside groove and weld cleaning.
Described thick plate automatic vertical position welding method, described welded gaps 4～10mm, bevel angle is 15～40 °.
Described thick plate automatic vertical position welding method, in the described welding step, the torch swinging amplitude is 10～50mm.
The present invention increases pendulous device on the conventional electroslag welding machine, welding wire can be swung along the thickness of slab direction in groove.The groove design is as far as possible little, does not contact with mother metal in swing process as long as can satisfy welding gun.Main welding condition has: welding current, voltage, bar elongation, depth of slag bath, the amplitude of oscillation, the front and back time of staying etc., welding condition will be determined according to thickness of slab, groove type.The present invention can reduce by 15～20% loading than common electroslag welding with wire, can reduce weld heat input greatly, has both saved wlding, can improve the impact flexibility of joint again.
The specific embodiment
A kind of thick plate automatic vertical position welding method, it is applicable to the slab of thickness at 40mm-140mm, is specially adapted to the slab of thickness greater than 90mm, and it comprises welding machine, and described welding machine has the torch swinging device, and it comprises the following steps:
The sheet material bevel, the group to and cleanup step, described groove is V-butt or double V groove;
The welding machine installation steps, it comprises tack welding or welds locator card, striking and blow-out plate are set, install and lead and climbing device and water-cooling system;
Welding step is welded while welding gun swung in bevel for welding;
Cleaning and inspection step, welding finishes, trimming, and do outward appearance and Non-Destructive Testing.
Described V-butt is suitable for welding the sheet material of thickness of slab smaller or equal to 40-70mm, and described welding step also comprises: welding and weld cleaning.
Described double V groove is suitable for the sheet material of thickness of slab greater than 70mm-140mm, and described welding also step comprises: welding front groove, back gouging, welding underside groove and weld cleaning.
Described thick plate automatic vertical position welding method, described welded gaps 4～10mm, bevel angle is 15～40 °.
Described thick plate automatic vertical position welding method, in the described welding step, the torch swinging amplitude is 10～50mm.
Claims (5)
1. thick plate automatic vertical position welding method, it comprises welding machine, and described welding machine has the torch swinging device, it is characterized in that, and it comprises the following steps:
The sheet material bevel, the group to and cleanup step, described groove is V-butt or double V groove;
The welding machine installation steps, it comprises tack welding or welds locator card, striking and blow-out plate are set, install and lead and climbing device and water-cooling system;
Welding step is welded while welding gun swung in bevel for welding;
Cleaning and inspection step, welding finishes, trimming, and do outward appearance and Non-Destructive Testing.
2. thick plate automatic vertical position welding method according to claim 1 is characterized in that, described V-butt is suitable for welding the sheet material of thickness of slab smaller or equal to 40-70mm, and described welding step also comprises: welding and weld cleaning.
3. thick plate automatic vertical position welding method according to claim 1, it is characterized in that, described double V groove is suitable for the sheet material of thickness of slab greater than 70mm-140, and described welding also step comprises: welding front groove, back gouging, welding underside groove and weld cleaning.
4. according to claim 1,2 or 3 described thick plate automatic vertical position welding methods, it is characterized in that described welded gaps 4～10mm, 15～40 ° of bevel angles.
5. according to claim 1,2 or 3 described thick plate automatic vertical position welding methods, it is characterized in that in the described welding step, the torch swinging amplitude is 10～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810038379XA CN101590568A (en) | 2008-05-30 | 2008-05-30 | Thick plate automatic vertical position welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810038379XA CN101590568A (en) | 2008-05-30 | 2008-05-30 | Thick plate automatic vertical position welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101590568A true CN101590568A (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810038379XA Pending CN101590568A (en) | 2008-05-30 | 2008-05-30 | Thick plate automatic vertical position welding method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009257A (en) * | 2010-12-01 | 2011-04-13 | 武昌船舶重工有限责任公司 | Process for welding high-strength hull structural steel by fillet welding in vertical position |
| CN102861972A (en) * | 2012-10-10 | 2013-01-09 | 青岛北海船舶重工有限责任公司 | Welding method for vertically spliced super-thick steel plate |
| CN102974949A (en) * | 2012-11-23 | 2013-03-20 | 中远船务（启东）海洋工程有限公司 | Welding process for improving cracking resistance of thick plate welding joint |
| CN103934541A (en) * | 2014-05-06 | 2014-07-23 | 武汉钢铁(集团)公司 | Electro-gas welding technology suitable for thick plates with thickness ranging from 20 mm to 45 mm |
| CN114951991A (en) * | 2022-05-19 | 2022-08-30 | 哈尔滨焊接研究院有限公司 | Ultrahigh-power scanning laser vertical welding method for aluminum alloy thick plate |
-
2008
- 2008-05-30 CN CNA200810038379XA patent/CN101590568A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009257A (en) * | 2010-12-01 | 2011-04-13 | 武昌船舶重工有限责任公司 | Process for welding high-strength hull structural steel by fillet welding in vertical position |
| CN102009257B (en) * | 2010-12-01 | 2013-02-20 | 武昌船舶重工有限责任公司 | Process for welding high-strength hull structural steel by fillet welding in vertical position |
| CN102861972A (en) * | 2012-10-10 | 2013-01-09 | 青岛北海船舶重工有限责任公司 | Welding method for vertically spliced super-thick steel plate |
| CN102974949A (en) * | 2012-11-23 | 2013-03-20 | 中远船务（启东）海洋工程有限公司 | Welding process for improving cracking resistance of thick plate welding joint |
| CN102974949B (en) * | 2012-11-23 | 2016-01-06 | 中远船务（启东）海洋工程有限公司 | For improving the welding procedure of thick plates joint cracking resistance |
| CN103934541A (en) * | 2014-05-06 | 2014-07-23 | 武汉钢铁(集团)公司 | Electro-gas welding technology suitable for thick plates with thickness ranging from 20 mm to 45 mm |
| CN114951991A (en) * | 2022-05-19 | 2022-08-30 | 哈尔滨焊接研究院有限公司 | Ultrahigh-power scanning laser vertical welding method for aluminum alloy thick plate |
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| PB01 | Publication | ||
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Open date: 20091202 |