CN104907675A - Process for single gun dezincing-free arc welding of zinc plating plate - Google Patents

Process for single gun dezincing-free arc welding of zinc plating plate Download PDF

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Publication number
CN104907675A
CN104907675A CN201510307794.0A CN201510307794A CN104907675A CN 104907675 A CN104907675 A CN 104907675A CN 201510307794 A CN201510307794 A CN 201510307794A CN 104907675 A CN104907675 A CN 104907675A
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China
Prior art keywords
welding
zinc
current
weld
galvanized steel
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CN201510307794.0A
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Chinese (zh)
Inventor
高庆旭
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Shanghai Jiangyi Precision Welding Equipment Co Ltd
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Shanghai Jiangyi Precision Welding Equipment Co Ltd
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Priority to CN201510307794.0A priority Critical patent/CN104907675A/en
Publication of CN104907675A publication Critical patent/CN104907675A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/16Arc welding or cutting making use of shielding gas
    • B23K9/167Arc welding or cutting making use of shielding gas and of a non-consumable electrode

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

The invention discloses a process for single gun dezincing-free arc welding of a zinc plating plate and relates to the technical field of non-melting electrode inert gas shielded welding. The process comprises the steps of flatly placing a zinc plating steel plate C on a flexible clamp platform, debugging a welding current according to the thickness of the zinc plating steel plate C, adopting a left-hand welding method for the welding, causing the right side of a welding gun to maintain an included angle of 60-75 degrees with parent metal, adjusting a current of a welding machine, observing the alternate changes of the current that is debugged and set well; when data are rational, causing a molten zinc layer to flow to the two sides of a weld joint due to the reaction effects of molten pool surface tension and electromagnetic effects, exposing a bright parent metal molten pool in the middle, alternately executing the dezincing and the welding current, moving the welding gun, performing welding while performing the dezincing; selecting the welding speed according to the dezincing effect to perform welding, and after test piece parameters of the zinc plating steel plate C meet the welding effect, performing flat butt welding of a zinc plating steel plate A and a zinc plating steel plate B. The process has stability in welding, the weld joint is attractive; and the process is simplified, reduces pollution and cost, improves enterprise competitiveness and is high in application value.

Description

Zinc arc welding technique exempted by a kind of single rifle of zinc-plated sheet material
Technical field
What the present invention relates to is non-melt pole inert gas-shielded arc welding technical field in arc welding technique, and zinc arc welding technique exempted by the single rifle being specifically related to a kind of zinc-plated sheet material.
Background technology
Galvanized sheet refers to that surface is coated with the steel plate of one deck zinc, galvanized steel plain sheet is for preventing surface of steel plate from suffering corrosion to extend its service life, layer of metal zinc is coated with at surface of steel plate, the steel plate of this zinc coating is called galvanized sheet, along with industrialization large-scale production is to the needs of steel surface requirement for anticorrosion, galvanized sheet is because technical maturity, the plurality of advantages such as effective, be widely used in various industrial products, from the demand all can finding out galvanized steel plain sheet about the half of whole world zinc output for this kind of technique, the processing technology that galvanized sheet is widely adopted in industrial products manufacture is welded exactly, galvanized sheet solder technology is seeming particularly important because galvanized sheet widely applies in industry manufacture, meet the high-performance welding technique application prospect of this type of sheet material widely.
Fusing point because of zinc only has 419.5 DEG C, mother metal steel plate below zinc layers then needs the temperature close to 1500 DEG C just can welding forming, when mother metal steel plate does not also reach welding molten state, zinc layers starts steam raising, produce a large amount of zinc fume, destroy interference arc to implement the welding of mother metal, phenomenon is that the Quick-gasifying of zinc evaporates the weld metal zone of causing and produces and burst, produce the cotton-shaped zinc oxide of white group, contaminated electrode, produce a large amount of zinc fume flue dust simultaneously, pollute weld job district, gasification zinc fume flue dust because of a large amount of high concentration causes welder to suck and poisoning, electrode fouling causes welding to implement.
The similar technique of existing arc-welding is to the welding of galvanized sheet, reach the equicohesive welding method of mother metal, it is all the method adopting the welding that dezincifies, substantially two kinds are classified as: (1) chemical method: adopt dilution acid solution to carry out pickling to zinc-plated sheet material weld zone, zinc and acid solution produce chemical reaction, reactant and sheet material depart from, again with rag class erasing reactant, expose galvanized sheet base material, cleaning acid solution remains and reactant, thus weld again, because be weld without zinc, so welding is implemented normal, but cause a large amount of artificial removing costs, place transfer cost of possession, and acid solution uses and environmental pollution in cleaning and acid solution use cost, (2) Physical: adopt technique for grinding, surperficial zinc layers is removed with the polishing of grinding wheel sheet, also be belong to weld without zinc after this method process, process implementing is normal, but be also need a large amount of costs of labor, place takies the cost ups such as transfer, and in removing, zinc powder dirt is to the pollution of operation area simultaneously, and the cost of cleaning equipment certainly will be caused to drop into.
And the arc welding process do not dezincified substantially also classifies as two kinds: (1) melting pole gas shielded arc welding, this kind of welding adopts the welding filling material of low melting point, belong to MIG welding procedure, the major defect of this kind of welding is the equal strength weld seam that can not reach steel plate mother metal, basic employing copper and Ni-based low melting material, the zinc on dilution zine plate surface, becomes alloying component, suppress the steam raising of zinc, stablize the welding procedure joint welding that welding pool alloying component and mother metal reach similar soldering; (2) compound welding method: adopt multiple gun welding, also be the technique belonging to dezincification, a welding gun burn off zinc, welding gun carries out the normal welding to mother metal steel plate in addition, advantage is that welding efficiency is high, industrial automation welding can be realized, can meet the common intensity requirement of steel, shortcoming is that this kind of method cost is high, consumes large, process implementing is complicated, easily be mingled with kirsite composition in weld seam, affect the original material capability of mother metal, face of weld turns black, artificial manual welding, causes a large amount of manpower, equipment investment cost and severe operational environment.
In order to solve the problem, the single rifle release zinc arc welding technique designing a kind of zinc-plated sheet material seems particularly necessary.
Summary of the invention
For the deficiency that prior art exists, the present invention seeks to be to provide a kind of single rifle of zinc-plated sheet material to exempt zinc arc welding technique, welding process is stablized, appearance of weld is attractive in appearance, process implementing simplifies, and greatly reduces the pollution to environment, reduces entreprise cost and manually transfers venue cost, improve enterprise competitiveness, using value is high.
To achieve these goals; the present invention realizes by the following technical solutions: zinc arc welding technique exempted by a kind of single rifle of zinc-plated sheet material; its implement needed for material comprise three pieces cut after be numbered the galvanized steel plain sheet of A, B, C, flexible fixture platform, welding machine, welding gun, welding mask, argon bottle and argon gas stream scale; the protection gas interface of argon bottle by argon gas stream scale access welding machine; welding gun is by positive connection welding procedure access welding machine the corresponding interface; welding ground is connected to flexible fixture platform, welding machine access 380V power supply.
Human weld's implementation method: open welding machine, argon flow amount in adjustment argon gas stream scale is to 5L/MIN, galvanized steel plain sheet C is kept flat on flexible fixture platform, manually pick up welding mask and welding gun, according to the required electric current of thickness of slab debugging welding on galvanized steel plain sheet C, welding adopts leftward welding, keeps 60-75 degree angle on the right side of welding gun with mother metal, regulates welding current, the electric current alternately change of debugging and setting is observed under welding mask, when data are reasonable, the zinc layers of fusing can because of special reaction effects such as weld pool surface tension force and galvanomagnetic-effects, flow to weld seam both sides, bright mother metal molten bath is exposed in centre, without the cotton-shaped flue dust of group, without explosion, dezincify and welding current so alternately execution, now move welding gun, the process that limit dezincification side weld connects can be carried out, weldering speed selects fast advance welding according to dezincification effect, after galvanized steel plain sheet C test piece parameter meets welding effect, galvanized steel plain sheet A can be carried out, the flat docking welding of B, after having welded, galvanized steel plain sheet A can be seen, bright bright and clean quality of parent material weld seam between B two boards material.
As preferably, described welding machine adopts 380V, 50HZ industrial power, the exportable two kinds of welding currents of the source of welding current, namely except zinc current and normal weld electric current, a series of corresponding datas such as curent change interval time and corresponding change time, except zinc current is less than normal weld electric current.
Beneficial effect of the present invention: welder adopts non-melt pole inert gas-shielded arc welding leftward welding, and welding gun tilts to carry out welding operation with 60-75 degree angle, the two welding arc of single rifle carries out alternately limit dezincification side weld to galvanized steel plain sheet weld seam simultaneously and connects:
(1) entreprise cost is reduced, without the need to dezincification cost that is artificial, equipment, without the need to the input cost of cleaning equipment;
(2) reduction manually transfers venue cost, without the need to taking the transfer cost of place cleaning and manpower equipment;
(3) process stabilizing, can realize the comprehensive technical indexes such as the weld strength of galvanized steel plain sheet mother metal original material completely;
(4) process implementing simplifies, and single rifle operation is implemented, and conveniently can realize large-scale industry automatic welding and produce;
(5) other technique environmental pollution is few relatively, meets increasingly serious environmental requirement.
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
With reference to Fig. 1; this detailed description of the invention is by the following technical solutions: zinc arc welding technique exempted by a kind of single rifle of zinc-plated sheet material; its implement needed for material comprise three pieces cut after be numbered the galvanized steel plain sheet of A, B, C, flexible fixture platform 1, welding machine 2, welding gun 3, welding mask, argon bottle and argon gas stream scale; the protection gas interface of argon bottle by argon gas stream scale access welding machine 2; welding gun 3 is by positive connection welding procedure access welding machine 2 the corresponding interface; welding ground 4 is connected to flexible fixture platform 1, and welding machine 2 accesses 380V power supply.
Human weld's implementation method of this detailed description of the invention is: open welding machine 2, argon flow amount in adjustment argon gas stream scale is to 5L/MIN, galvanized steel plain sheet C is kept flat on flexible fixture platform 1, manually pick up welding mask and welding gun 3, according to the required electric current of thickness of slab debugging welding on galvanized steel plain sheet C, welding adopts leftward welding, 60-75 degree angle is kept with mother metal on the right side of welding gun 3, regulate welding current, welding machine 2 adopts 380V, 50HZ industrial power, the exportable two kinds of welding currents of the source of welding current, namely except zinc current and normal weld electric current, a series of corresponding datas such as curent change interval time and corresponding change time, except zinc current is less than normal weld electric current.
The electric current alternately change of debugging and setting is observed under welding mask, when data are reasonable, the zinc layers of fusing can because of special reaction effects such as weld pool surface tension force and galvanomagnetic-effects, flow to weld seam both sides, bright mother metal molten bath is exposed in centre, without the cotton-shaped flue dust of group, without explosion, dezincify and welding current so alternately execution, now move welding gun 3, the process that limit dezincification side weld connects can be carried out, weldering speed selects fast advance welding according to dezincification effect, after galvanized steel plain sheet C test piece parameter meets welding effect, galvanized steel plain sheet A can be carried out, the flat docking welding of B, after having welded, galvanized steel plain sheet A can be seen, bright bright and clean quality of parent material weld seam between B two boards material.
This detailed description of the invention avoids the deficiency of traditional handicraft, single rifle non-melt pole inert gas (or mist) is adopted to protect weldering, after sheet material cuts, without the need to being removed the zinc layers of weld metal zone by chemistry and Physical, and without the need to any cleaning before weldering, but the welding that do not dezincify before directly adopting the weldering of this process implementing sheet material, single rifle realizes the flat docking of sheet material, overlap joint, the technique that the limit dezincification side weld of corner connection connects, experiment proves, present invention process welding process is stablized, weld seam presents base metals primary colors, pollute pole hardly, welding process with removing zinc after weld the same stable, automatic welding can realize single face welding and double face shaping technique, appearance of weld is attractive in appearance, when welding data is reasonable, in welding process, few flue dust produces, a large amount of zinc fume produces, few relative to traditional handicraft environmental pollution, meet increasingly serious environmental requirement.
This detailed description of the invention process stabilizing, can be completely achieved the comprehensive technical indexes such as the weld strength of galvanized steel plain sheet mother metal original material, reduce entreprise cost, also reduction manually transfers venue cost further, without the need to taking the transfer cost of place cleaning and manpower equipment, process implementing simplifies, and single rifle operation is implemented, conveniently can realize large-scale industry automatic welding to produce, there is wide market application foreground.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (4)

1. zinc arc welding device exempted by single rifle of a zinc-plated sheet material, it is characterized in that, its implement needed for material comprise three pieces cut after be numbered A, B, the galvanized steel plain sheet of C, flexible fixture platform (1), welding machine (2), welding gun (3), welding mask, argon bottle and argon gas stream scale, the protection gas interface of argon bottle by argon gas stream scale access welding machine (2), welding gun (3) is by positive connection welding procedure access welding machine (2) the corresponding interface, welding ground (4) is connected to flexible fixture platform (1), welding machine (2) access 380V power supply.
2. zinc arc welding technique exempted by single rifle of a kind of zinc-plated sheet material according to claim 1; it is characterized in that; described welding procedure adopts non-melt pole inert gas-shielded arc welding leftward welding; welding gun (3) tilts to carry out welding operation with 60-75 degree angle, and the two welding arc of single rifle carries out to the weld seam of galvanized steel plain sheet A, B the process that alternately limit dezincification side weld connects.
3. zinc arc welding technique exempted by single rifle of a zinc-plated sheet material, it is characterized in that, the implementation method of craft or automatic welding: open welding machine (2), argon flow amount in adjustment argon gas stream scale is to 5L/MIN, galvanized steel plain sheet C is kept flat on flexible fixture platform (1), manually pick up welding mask and welding gun (3), according to the required electric current of thickness of slab debugging welding on galvanized steel plain sheet C, during welding, welding gun (3) right side keeps 60-75 degree with mother metal angle, regulates welding current, the electric current alternately change of debugging and setting is observed under welding mask, when data are reasonable, the zinc layers of fusing can because of special reaction effects such as weld pool surface tension force and galvanomagnetic-effects, flow to weld seam both sides, bright mother metal molten bath is exposed in centre, without the cotton-shaped flue dust of group, without explosion, dezincify and welding current so alternately execution, now move welding gun (3), the process that limit dezincification side weld connects can be carried out, weldering speed selects fast advance welding according to dezincification effect, after galvanized steel plain sheet C test piece parameter meets welding effect, galvanized steel plain sheet A can be carried out, the flat docking welding of B, after having welded, galvanized steel plain sheet A can be seen, bright bright and clean quality of parent material weld seam between B sheet material.
4. zinc arc welding technique exempted by single rifle of a kind of zinc-plated sheet material according to claim 1 or 3, it is characterized in that, described welding machine (2) adopts 380V, 50HZ industrial power, the exportable two kinds of welding currents of the source of welding current, namely except zinc current and normal weld electric current, a series of corresponding datas such as curent change interval time and corresponding change time, except zinc current is less than normal weld electric current.
CN201510307794.0A 2015-06-08 2015-06-08 Process for single gun dezincing-free arc welding of zinc plating plate Pending CN104907675A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345222A (en) * 2015-11-24 2016-02-24 唐山轨道客车有限责任公司 Single-face-welding and double-face-forming welding method
CN107931788A (en) * 2017-10-20 2018-04-20 珠海沃顿电气有限公司 A kind of automatic argon arc weld plate fusion joining process
CN113681153A (en) * 2021-09-12 2021-11-23 光惠(上海)激光科技有限公司 Integrated welding laser

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345222A (en) * 2015-11-24 2016-02-24 唐山轨道客车有限责任公司 Single-face-welding and double-face-forming welding method
CN105345222B (en) * 2015-11-24 2017-08-25 中车唐山机车车辆有限公司 The welding method of single face welding and double face shaping
CN107931788A (en) * 2017-10-20 2018-04-20 珠海沃顿电气有限公司 A kind of automatic argon arc weld plate fusion joining process
CN113681153A (en) * 2021-09-12 2021-11-23 光惠(上海)激光科技有限公司 Integrated welding laser

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Application publication date: 20150916