CN102785014A - Welding tool and welding method - Google Patents

Welding tool and welding method Download PDF

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Publication number
CN102785014A
CN102785014A CN2012102917336A CN201210291733A CN102785014A CN 102785014 A CN102785014 A CN 102785014A CN 2012102917336 A CN2012102917336 A CN 2012102917336A CN 201210291733 A CN201210291733 A CN 201210291733A CN 102785014 A CN102785014 A CN 102785014A
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China
Prior art keywords
welding
weld seam
welded piece
frock
welded
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CN2012102917336A
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CN102785014B (en
Inventor
陈幼林
田宝华
李治强
彭继安
杨毅
刘延龙
徐仁华
王红
霍莉
杨肃钟
张晓飞
张旭
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China Railway 23rd Bureau Group Co Ltd
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China Railway 23rd Bureau Group Co Ltd
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Abstract

The invention relates to a welding tool and a welding method. The welding tool comprises a protection chamber capable of surrounding a welding port of a work piece to be welded; a working platform capable of placing a welding machine is arranged inside the protection chamber; a welding worker can stand on the working platform to carry out operation; the protection chamber comprises a bracket and a protection cover arranged on the surface of the bracket; the protection cover entirely seals and surrounds the bracket through a cotton quilt; and a thermal insulation lamp is further arranged inside the protection chamber. The welding method using the welding tool comprises the following steps of: carrying out pre-welding preparation before CO2 gas protection welding in the protection chamber; pre-heating; carrying out priming welding through the CO2 gas protection; carrying out filling welding through the CO2 gas protection, and welding a cover surface through the CO2 gas protection. With the adoption of the welding tool and the welding method provided by the invention, the process of welding a weld seam of the work piece to be welded at a high altitude in severe environments, such as strong wind, low temperature, ice and snow, large humidity and high altitude working environments, particularly in a high altitude area, so that the welding quality is improved; the effective operation time of welding in the severe environments can be prolonged; and the construction period is shortened.

Description

A kind of welding is with frock and welding method
Technical field
The present invention relates to welding technology field, be specifically related to a kind of weather welding with frock and welding method.
Background technology
Welded piece is outdoor when carrying out weld job; Usually can run into wind is arranged, under the low temperature, the more high particular surroundings of humidity; The general cloth of becalming that adopts of prior art simply blocks or forms enclosure space, and the environment that general influence is welded can also solve, but under the situation for high altitude localities weather very severe; Under strong wind, low temperature, ice and snow, high humidity, work high above the ground environment, prior art has satisfied not the environmental requirement of welding and the requirement of welding quality.
Summary of the invention
The objective of the invention is to overcome the deficiency that the welding requirements that under the adverse circumstances under strong wind, low temperature, ice and snow, high humidity, the work high above the ground environment, can not satisfy welded piece in the above-mentioned prior art and welding quality require; Provide a kind of welding with frock and welding method; This welding tooling can be under the awful weather condition; Can realize the welding of welded piece weld seam smoothly, and can guarantee the welding method of welding quality, especially to the welding under the high altitude environment.
In order to realize the foregoing invention purpose, the invention provides following technical scheme:
Frock is used in a kind of welding, it is characterized in that: comprise the protecting bin that can surround welded piece weld seam interface, be provided with workbench in the described protecting bin.
Preferably, described protecting bin comprises support and the protective cover that is located at rack surface.
Preferably, described protective cover is with the totally-enclosed encirclement of support.
Preferably, described protective cover is a cotton-wadded quilt.
Welded piece weld seam interface is placed on protecting bin inside; Rack surface is surrounded with protective cover; Welded piece weld seam interface weld the time, protecting bin can play the welding space that entering supports such as stoping strong wind, sleet are surrounded, and can satisfy the environmental condition of welding; When selecting for use cotton-wadded quilt to be surrounded support is totally-enclosed, prevent that not only wind is effective, and can also play insulation effect preferably as protective cover.
Preferably, described support is formed by connecting some steel bars or channel-section steel.
Preferably, described steel bar or channel-section steel are connected on the welded piece.
When carrying out work high above the ground, when protecting bin can't be installed in the place except that welded piece, on bridge pier, column, then can adopt steel bar or channel-section steel to connect into support and be connected on the welded piece, form the protecting bin of sealing.
Preferably, described protective cover inside is provided with at least one insulation lamp.
To the quantity of configuration insulation lamp, be based on satisfy welding temperature, humidity is selected at claimed range.
Preferably, described insulation lamp is an iodine-tungsten lamp.
When running into ice and snow, microthermal climate, if the welding method of using is higher to temperature requirement, such as CO 2Gas shielded arc welding is provided with iodine-tungsten lamp in protective cover inside before the welding, and iodine-tungsten lamp can make welding surroundings heat up, and joins one of Hygrothermograph in the gondola, when humiture in the gondola satisfies the weld job environment, carries out weld job again.
Adopt above-mentioned a kind of welding method of welding, it is characterized in that described welding method may further comprise the steps with frock:
Prepare before step 1, the weldering, around welded piece weld seam interface, build described welding and use frock, adopt CO 2Gas shielded arc welding is with CO 2Gas shielded welding machine is put on the workbench in the protecting bin, and welding wire is assemblied in CO 2On the gas shielded welding machine, adjustment welding wire length, and on miscellaneous part, carry out test weld; CO 2Gas purity is more than 99.5%, and welding wire adopts the flux-cored wire of Φ 1.2mm;
Step 2, preheating, described CO 2Adopt oxygen-acetylene that welded piece weld seam interface and periphery are toasted before the gas shield welding earlier, the moisture on welded piece surface is dried, simultaneously welded piece weld seam interface is carried out preheating;
Step 3, bottoming welding are carried out one deck CO to welded piece weld seam interface earlier 2Gas shield bottoming welding, this layer only need cover welded piece weld seam interface slit and get final product, after described bottoming welding is accomplished; The welded piece weld seam is cleared up; Rugged position is handled, the welding coating is cleared up, guarantee that whole welded piece weld seam exposes metallic luster;
Step 4, filling are welded, and after described bottoming welding, carry out the CO of welded piece weld seam interface 2Welding is filled in gas shield, described filling welding according to the welded piece weld penetration generally fill welding two-layer and more than, fill for every layer and all will handle after welding is accomplished the welded piece weld seam, qualified to guarantee lower floor's welding;
Step 5, cover welding are carried out CO after described filling welding is accomplished 2The gas shield cover welding; Welding is welded, filled in the various environmental requirements of described cover welding with described bottoming the same; Note the width and the undercut situation of capping during welding; The welded piece weld seam of cover welding should be higher than welding base metal (like 1mm), does not allow to be lower than mother metal, and and mother metal between transition along sliding.
Preferably, need control interlayer temperature during the filling of said step 4 welding, promptly guarantee using CO 2Upper strata welded piece weld seam temperature is spent greater than 5 during gas shield welding lower floor, otherwise should carry out the described The pre-heat treatment of step 2 again.
Preferably, described CO 2Be incubated lamp in the gas shield welding process all the time according to welded piece weld seam interface, and according to one or many insulation lamps of on-the-spot needs configuration.
Preferably, said welded piece weld seam interface is at CO 2The gas shield cover welding wraps up with cotton-wadded quilt after accomplishing, and can make CO like this 2The welded piece weld seam temperature that the gas shield welding is accomplished is unlikely to reduce too fast.
Compared with prior art, beneficial effect of the present invention:
A kind of welding of the present invention is fallen strong wind, separated sleet with frock and welding method through having adopted rack surface encirclement protective cover (like cotton-wadded quilt) to reach; Make welding surroundings reach insulation, intensification effect through insulation lamp (like iodine-tungsten lamp), just can utilize CO then 2Welding methods such as gas shielded arc welding are positioned at the welding of the welded piece weld seam interface of internal stent.This kind welding can solve the adverse circumstances under strong wind, low temperature, ice and snow, high humidity, work high above the ground environment with frock and welding method; Especially in the high altitude localities, the welding of high-altitude weld seam improves welding quality; Increase the effective operation time of welding under the adverse circumstances, reduce construction period.
Description of drawings:
Fig. 1 is a kind of internal structure sketch map that welds with frock of the present invention.
Fig. 2 is a kind of surface structure sketch map that welds with frock of the present invention.
Fig. 3 for the present invention adopts said welding with the welding method flow chart of steps of frock.
Mark among the figure:
1, welded piece, 2, support, 3, workbench, 4, protective cover, 5, the insulation lamp.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is made further detailed description.But should this be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment, allly all belong to scope of the present invention based on the technology that content of the present invention realized.
Shown in Fig. 1-2, a kind of welding comprises the protecting bin that can surround welded piece 1 weld seam interface with frock and welding method, is provided with the workbench 3 that can place welding machine in the described protecting bin, and the welder may stand in workbench 3 enterprising line operates.Protecting bin comprises support 2 and the protective cover 4 that is located at support 2 surfaces, and protective cover 4 adopts cotton-wadded quilt with support 2 totally-enclosed encirclements.Welded piece 1 weld seam interface is placed on support 2 inside, and the protective cover 4 of support 2 surperficial totally-enclosed encirclements can play the welding space that entering supports 2 such as stoping strong wind, sleet is surrounded, and also has insulation effect preferably simultaneously.
When carrying out work high above the ground, when protecting bin can't be installed in the place except that welded piece 1, on bridge pier, column, then can adopt steel bar or channel-section steel to connect into support 2 and be connected on the welded piece 1, form the protecting bin of sealing.
When running into ice and snow, microthermal climate, if the welding method of using is higher to temperature requirement, such as CO 2Gas shielded arc welding is provided with insulation lamp 5 in support 2 inside before the welding, and such as using iodine-tungsten lamp, iodine-tungsten lamp can make welding surroundings heat up, and joins one of Hygrothermograph in the gondola, after humiture in the gondola satisfies the weld job environmental requirement, carries out weld job again.
Further, as shown in Figure 3, adopt the welding method of above-mentioned welding with frock, may further comprise the steps:
Prepare before step 1, the weldering, around welded piece 1 weld seam interface, build welding and use frock, adopt CO 2Gas shielded arc welding is with CO 2Gas shielded welding machine is put on the workbench 3 in the protecting bin, and welding wire is assemblied in CO 2On the gas shielded welding machine, adjustment welding wire length, and on miscellaneous part, carry out test weld; CO 2Gas purity is more than 99.5%, and welding wire adopts the flux-cored wire of Φ 1.2mm;
Step 2, preheating are at CO 2Adopt oxygen-acetylene that welded piece 1 weld seam interface and periphery are toasted before the gas shield welding earlier, the moisture on welded piece 1 surface is dried, simultaneously welded piece 1 weld seam interface is carried out preheating;
Step 3, bottoming welding are carried out one deck CO to welded piece 1 weld seam interface earlier 2Gas shield bottoming welding; This layer only need cover welded piece 1 weld seam interface slit and get final product; After described bottoming welding is accomplished, welded piece 1 weld seam is cleared up, rugged position is handled; The welding coating is cleared up, guaranteed that whole welded piece 1 weld seam exposes metallic luster;
Step 4, filling are welded, and after the described bottoming welding of step 3, carry out the CO of welded piece 1 weld seam interface 2Welding is filled in gas shield, described filling welding according to welded piece 1 weld penetration generally fill welding two-layer and more than, fill for every layer and all will handle after welding is accomplished welded piece 1 weld seam, qualified to guarantee lower floor's welding; Need control interlayer temperature when filling welding, the upper strata weld seam temperature is spent greater than 5 when promptly guaranteeing welding lower floor, otherwise should carry out The pre-heat treatment again;
Step 5, cover welding are carried out CO after the described filling welding of step 4 is accomplished 2The gas shield cover welding; Welding is welded, filled in the various environmental requirements of described cover welding with described bottoming the same; Note the width and the undercut situation of capping during welding; Welded piece 1 weld seam of cover welding should be higher than welding base metal (like 1mm), does not allow to be lower than mother metal, and and mother metal between transition along sliding.
The carbon dioxide gas arc welding that this welding method adopts, welding environment temperature are controlled at that 5 degree are above, humidity is less than 85%, and insulation lamp 5 (like iodine-tungsten lamp) is all the time according to welded piece 1 weld seam in welding process; Welded piece 1 weld seam wraps up with cotton-wadded quilt after cover welding is accomplished, and welded piece 1 weld seam temperature that welding is accomplished is unlikely to reduce too fast.
Use a kind of welding of the present invention with frock and welding method; Can solve under adverse circumstances, under strong wind, low temperature, ice and snow, high humidity, work high above the ground environment, especially in the high altitude localities; The welding of high-altitude welded piece 1 weld seam; Improve welding quality, increase the effective operation time of welding under the adverse circumstances, reduce construction period.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (13)

1. frock is used in a welding, it is characterized in that: comprise the protecting bin that can surround welded piece (1) weld seam interface, be provided with workbench (3) in the described protecting bin.
2. frock is used in a kind of welding according to claim 1, it is characterized in that: described protecting bin comprises support (2) and is located at the protective cover (4) on support (2) surface.
3. frock is used in a kind of welding according to claim 2, it is characterized in that: described protective cover (4) is with the totally-enclosed encirclement of support (2).
4. frock is used in a kind of welding according to claim 3, it is characterized in that: described protective cover (4) is a cotton-wadded quilt.
5. frock is used in a kind of welding according to claim 2, it is characterized in that: described support (2) is formed by connecting some steel bars or channel-section steel.
6. frock is used in a kind of welding according to claim 5, it is characterized in that: described steel bar or channel-section steel are connected on the welded piece (1).
7. frock is used in arbitrary described a kind of welding according to claim 2-6, it is characterized in that: described protective cover (4) inside is provided with at least one insulation lamp (5).
8. frock is used in a kind of welding according to claim 7, it is characterized in that: described insulation lamp (5) is an iodine-tungsten lamp.
9. frock is used in a kind of welding according to claim 1, it is characterized in that: described workbench (3) is for being located at steel plate or the plank bottom the protecting bin.
10. adopt the arbitrary described a kind of welding method of welding of claim 1-9, it is characterized in that, may further comprise the steps with frock:
Prepare before step 1, the weldering, around welded piece (1) weld seam interface, build described welding and use frock, adopt CO 2Gas shielded arc welding is with CO 2Gas shielded welding machine is put on the workbench (3) in the protecting bin, and welding wire is assemblied in CO 2On the gas shielded welding machine, adjustment welding wire length, and on miscellaneous part, carry out test weld;
Step 2, preheating, described CO 2Adopt oxygen-acetylene that welded piece (1) weld seam interface and periphery are toasted before the gas shield welding earlier, the moisture on welded piece (1) surface is dried, simultaneously welded piece (1) weld seam interface is carried out preheating;
Step 3, bottoming welding are carried out one deck CO to welded piece (1) weld seam interface earlier 2Gas shield bottoming welding; This layer only need cover welded piece (1) weld seam interface slit and get final product; After described bottoming welding is accomplished, welded piece (1) weld seam is cleared up, rugged position is handled; The welding coating is cleared up, guaranteed that whole welded piece (1) weld seam exposes metallic luster;
Step 4, filling are welded, and after described bottoming welding, carry out the CO of welded piece (1) weld seam interface 2Welding is filled in gas shield, described filling welding according to welded piece (1) weld penetration generally fill welding two-layer and more than, fill for every layer and all will handle after welding is accomplished welded piece (1) weld seam, qualified to guarantee lower floor's welding;
Step 5, cover welding are carried out CO after described filling welding is accomplished 2The gas shield cover welding; Welding is welded, filled in the various environmental requirements of described cover welding with described bottoming the same; Note the width and the undercut situation of capping during welding; The welded piece of cover welding (1) weld seam should be higher than welding base metal, does not allow to be lower than mother metal, and and mother metal between transition along sliding.
11. a kind of welding method of welding with frock according to claim 10 is characterized in that: need control interlayer temperature when the filling of said step 4 is welded, promptly guarantee using CO 2Upper strata welded piece (1) weld seam temperature is spent greater than 5 during gas shield welding lower floor, otherwise should carry out the described The pre-heat treatment of step 2 again.
12., it is characterized in that: described CO according to claim 10 or 11 described a kind of welding methods of welding with frock 2Be incubated lamp (5) in the gas shield welding process all the time according to welded piece (1) weld seam interface.
13. a kind of welding method of welding with frock according to claim 10 is characterized in that: said welded piece (1) weld seam interface is at CO 2The gas shield cover welding wraps up with cotton-wadded quilt after accomplishing.
CN201210291733.6A 2012-08-16 2012-08-16 Welding tool and welding method Active CN102785014B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111843317A (en) * 2020-08-25 2020-10-30 大连智汇达科技有限公司 Surround welding set and welding system
CN113414474A (en) * 2021-07-09 2021-09-21 天津大学 With CO2Titanium alloy welding system and welding method as ambient atmosphere

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201033390Y (en) * 2007-04-29 2008-03-12 韩景福 Dipping type gas protection welding set
CN201291347Y (en) * 2008-11-26 2009-08-19 中国科学院广州地球化学研究所 Gold sample cell welding device
KR20100005644U (en) * 2008-11-25 2010-06-04 현대중공업 주식회사 Overhead position of welding workbench combination windscreen
CN101927388A (en) * 2010-01-04 2010-12-29 中国第二冶金建设有限责任公司 Winter welding construction method of long-distance transport pipe line
CN202155658U (en) * 2011-06-02 2012-03-07 三一重工股份有限公司 Heat preservation device for storing welding parts
CN202174363U (en) * 2011-06-09 2012-03-28 河北宣化工程机械股份有限公司 Automatic wielding shielding window
CN202411640U (en) * 2011-10-15 2012-09-05 中国石油天然气集团公司 Arch crown reverse storage tank CO2 automatic welding anti-wind device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201033390Y (en) * 2007-04-29 2008-03-12 韩景福 Dipping type gas protection welding set
KR20100005644U (en) * 2008-11-25 2010-06-04 현대중공업 주식회사 Overhead position of welding workbench combination windscreen
CN201291347Y (en) * 2008-11-26 2009-08-19 中国科学院广州地球化学研究所 Gold sample cell welding device
CN101927388A (en) * 2010-01-04 2010-12-29 中国第二冶金建设有限责任公司 Winter welding construction method of long-distance transport pipe line
CN202155658U (en) * 2011-06-02 2012-03-07 三一重工股份有限公司 Heat preservation device for storing welding parts
CN202174363U (en) * 2011-06-09 2012-03-28 河北宣化工程机械股份有限公司 Automatic wielding shielding window
CN202411640U (en) * 2011-10-15 2012-09-05 中国石油天然气集团公司 Arch crown reverse storage tank CO2 automatic welding anti-wind device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111843317A (en) * 2020-08-25 2020-10-30 大连智汇达科技有限公司 Surround welding set and welding system
CN113414474A (en) * 2021-07-09 2021-09-21 天津大学 With CO2Titanium alloy welding system and welding method as ambient atmosphere
CN113414474B (en) * 2021-07-09 2022-06-17 天津大学 Titanium alloy welding system and method with carbon dioxide as ambient atmosphere

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