CN1657214A - Welding system of gas-powder shielded welding and its method - Google Patents
Welding system of gas-powder shielded welding and its method Download PDFInfo
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- CN1657214A CN1657214A CN 200510013233 CN200510013233A CN1657214A CN 1657214 A CN1657214 A CN 1657214A CN 200510013233 CN200510013233 CN 200510013233 CN 200510013233 A CN200510013233 A CN 200510013233A CN 1657214 A CN1657214 A CN 1657214A
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Abstract
A welding system for the gas-powder shielded welding is composed of a welding machine, a gas cylinder, a welding wire feeding unit with three wire-feeding wheel with V-shaped slot or teeth, a welding gun with a powder storage bottle, and workpiece. The welding wire with slot can carry the shielding powder into the area to be welded.
Description
Technical field
The present invention relates to a kind of welding system and method thereof of gas shielded arc welding.
Background technology
The welding method of general gas shielded arc welding is to send electricity and transmit welding wire and protective gas to the weld zone by welding gun, and wire feed passage and plenum duct can be ganged up.When implementing welding job, welding wire makes with contacting of workpiece and produces electric arc between the two, by arc heat filler wire and workpiece, and avoids air inrush with protective gas protection welding region simultaneously.The partial ionization in electric arc of described protective gas, thus become the conduction atmosphere of electric arc so that guarantee welding process continuously and stable.
Publication number is that 1555953 Chinese patent discloses a kind of welding system of gas shielded arc welding, and a kind of method of utilizing this system to weld is provided.This welding system is to be connected in series a powder feeder that specific medicinal powder is housed between the gas cylinder of former welding system and wire feeder, or powder feeder and described wire feeder that specific medicinal powder will be housed are attempted by between described welding gun and the gas cylinder.This method adopts gas powder mixing path, and medicinal powder can disperse in surrounding air, pollutes, and has reduced the utilization rate of medicinal powder simultaneously.
Summary of the invention
In order to overcome deficiency of the prior art; technical problem to be solved by this invention provides a kind of welder and method of gas powder protection weldering; on welding gun, increased a storage powder bottle simple and compact for structure, easy to use; storage powder bottle meal outlet links to each other with wire feeding pipe line; and it is isolated with plenum duct; the wire feed rolls that wire feeder adopts band to sharp teeth; in the wire feed process, welding wire surface is extruded groove; thereby make the welding wire of powder groove going along with directly enter arc region; improve the medicinal powder utilization ratio, reduce and pollute.
In order to solve the problems of the technologies described above, purpose of the present invention can realize by following technical scheme.
A kind of welding system of gas powder protection weldering, be provided with welding machine, gas cylinder, wire feeder, welding gun and workpiece, described wire feeder is provided with first wire feed rolls of a pair of band V-type groove, described welding gun is provided with the storage powder bottle, described storage powder bottle meal outlet links to each other with wire feeding pipe line in the welding gun, wire-feeding pipe in also can described welding gun is provided with powder storing chamber, and described storage powder bottle meal outlet links to each other with powder storing chamber; Wire reel is anterior in the described wire feeder is arranged with the 3rd wire feed rolls that a pair of band sharps teeth in parallel with first wire feed rolls, is preferably in second wire feed rolls that a pair of band sharps teeth is set on the vertical direction between described first wire feed rolls and the 3rd wire feed rolls.
Wire-feeding pipe in the described welding gun is a metal tube.
Welding method of the present invention is summarized as follows:
(1) connect storage powder bottle and welding gun, and inject medicinal powder, connect the flexible pipe of supplying gas between gas cylinder, pressure-reducing valve and the welding gun then, load onto welding wire, open the gas cylinder air valve from powder inlet, the source of welding current, after checking gas flow and the unobstructed property of wire feed normal, the beginning welding process;
(2) described medicinal powder is delivered in the powder storing chamber by storage powder bottle meal outlet, mix with the welding wire of the band indent that enters welding gun by wire-feeding pipe, medicament enters ignition tip by the indent of welding wire surface, enter the welding arc district again, simultaneously, protection gas enters arc region by advancing the outer gas circuit of fiber tube, participates in welding process;
(3) burning and the appearance of weld of welding wire, protective gas, medicinal powder fellowship electric arc under the effect of electric current are finished the welding process of steady and continuous.
The welding system and the method thereof of gas powder protection weldering of the present invention compared with prior art have following beneficial effect:
1. the welder and the method for gas powder protection weldering of the present invention, simple and compact for structure, easy to use;
2. medicinal powder directly mixes mutually with the welding wire of being with indent, avoids the pollution of dispersing and causing because of medicinal powder, has improved the medicinal powder utilization rate;
3. the medicinal powder of sending to welding wire has participated in the burning of gas shielded arc welding welding arc, and the transition of molten drop and appearance of weld have changed arc performance, welding wire droplet transfer characteristic and appearance of weld performance.
4. the difference according to medicinal powder composition, characteristic can obtain different arc performance, mode of metal transfer and appearance of weld quality.
Description of drawings
Fig. 1 is the welding system structural representation of gas powder protection weldering of the present invention;
Fig. 2 is the local enlarged diagram of welding gun in the welding system of gas powder of the present invention protection weldering;
Fig. 3 is the local enlarged diagram of the welding system wire feeder of gas powder protection weldering of the present invention.
Reference numeral:
1---gas cylinder 2---pressure-reducing valve 3---storage powder bottle
4---wire feeder 5---welding gun 6---welding machines
7---workpiece 11---snorkel 12---wire-feeding pipes
13---powder storing chamber 14---ignition tip 15---kuppes
16---powder inlet 17---meal outlet 18---powder storing chambers
21---the 3rd wire feed rolls 22---welding wire
The specific embodiment
Below in conjunction with accompanying drawing wall green device structure of the present invention is done to describe in further detail.
In the drawings, a kind of welding system of gas powder protection weldering is provided with welding machine 6, gas cylinder 1, wire feeder 4, welding gun 5 and workpiece 7, and described welding gun 5 is provided with storage powder bottle 3, storage powder bottle 3 is provided with powder inlet 16 and meal outlet 17, and described storage powder bottle 3 meal outlets 17 link to each other with wire feeding pipe line 12 in the welding gun 5; Wire-feeding pipe 12 in the described welding gun 5 is preferably metal tube; Can on the wire-feeding pipe 12 in the described welding gun 5 powder storing chamber 18 be set, described storage powder bottle 3 meal outlets 17 link to each other with powder storing chamber 18, to guarantee the sufficient medicinal powder of deposit in powder storing chamber 18.
Described wire feeder is provided with first wire feed rolls of a pair of band V-type groove, wire reel is anterior in the described wire feeder is arranged with the 3rd wire feed rolls 21 that a pair of band sharps teeth in parallel with first wire feed rolls, be preferably in second wire feed rolls that a pair of band sharps teeth is set on the vertical direction between described first wire feed rolls and the 3rd wire feed rolls, the wire feed rolls that utilizes band to sharp teeth is made horizontal or oblique indent in welding wire 22 surface pressure in the wire feed process like this, the two pairs of wheels will be up and down and the welding wire 22 extrusion indents of left and right sides four direction, during through powder storing chamber 18, mix with medicinal powder, entering ignition tip 14, protection gas enters the weld zone by snorkel through kuppe 15;
Below in conjunction with accompanying drawing welding method of the present invention is done to describe in further detail.
(1) connects storage powder bottle 3 and welding gun 5, and inject medicinal powder, connect the snorkel 11 between gas cylinder 1, pressure-reducing valve 2 and the welding gun 5 then from powder inlet 16, load onto welding wire 22, open the gas cylinder air valve, the source of welding current, after checking gas flow and the unobstructed property of wire feed normal, the beginning welding process;
(2) described medicinal powder is delivered in the powder storing chamber 18 by storage powder bottle 3 meal outlets 17, mix with the welding wire 22 that enters the band indent of welding gun 5 by wire-feeding pipe 12, medicament enters ignition tip 14 by the indent on welding wire 22 surfaces, enter the welding arc district again, simultaneously, protection gas enters arc region by advancing the outer snorkel 12 of fiber tube, participates in welding process;
(3) burning and the appearance of weld of welding wire, protective gas, medicinal powder fellowship electric arc under the effect of electric current are finished the welding process of steady and continuous.
Welding method of the present invention; be sending electricity to the weld zone, send welding wire, send on the basis of protective gas when original gas shielded arc welding; the storage powder bottle of a splendid attire particular agent is installed on welding gun; storage powder bottle one end links to each other with wire feeding pipe line in the welding gun, adds to the weld zone to wire feeding pipe line by storage powder bottle on the welding gun and send particular agent.The welding wire that is had indent by the surface is brought particular agent into welding region, realizes improving the purpose of welding technological properties and Weld Performance.
In the present invention, contain the easily ionizable material owing to send in the activating agent of arc region, under the constant situation of arc voltage, the degree of ionization of electric arc increases, and the electric arc conductance is improved; Simultaneously, improve in the electric arc conductance, current density improves, thereby cause outside the change of welding wire droplet transfer mode, because the surface-active effect of activating agent, the fusing rear section is adsorbed on welding wire molten drop surface, significantly reduce the surface tension of molten drop, reduce the droplet size of transition, the refinement molten drop, thus changed the welding wire droplet transfer mode, be transformed into the particle transition by original short circuiting transfer, eliminated the main cause that causes the gas shielded arc welding excessive spatter: " foot bridge the is quick-fried disconnected " phenomenon during short circuiting transfer, thereby, significantly reduced welding process and splashed; Can form the very thin molten slag of one deck at weld pool surface after the activating agent burning, protect the crystallization process in molten bath, improve the flowability of molten pool metal, thereby, appearance of weld improved.Because the raising of electric arc conductance, and reduced because the weld cleaning time of splashing and causing in a large number, welding production efficiency is significantly improved, alleviated welder's labour intensity (otherwise, the spatter thing of the great pneumatic chipping face of weld of the handy noise of welder) simultaneously.
More than be schematically to the description of the present invention and embodiment thereof, do not have restricted.So, if those of ordinary skill in the art is enlightened by it, under the situation that does not break away from the invention aim, make other embodiment, all should belong to protection scope of the present invention.
Claims (5)
1, a kind of welding system of gas powder protection weldering; be provided with welding machine, gas cylinder, wire feeder, welding gun and workpiece; described wire feeder is provided with first wire feed rolls of a pair of band V-type groove; it is characterized in that; described welding gun is provided with the storage powder bottle; described storage powder bottle meal outlet links to each other with wire feeding pipe line in the welding gun, and wire reel is anterior in the described wire feeder is arranged with the 3rd wire feed rolls that a pair of band sharps teeth in parallel with first wire feed rolls.
2, the welding system of a kind of gas powder protection weldering according to claim 1 is characterized in that the wire-feeding pipe in the described welding gun is provided with powder storing chamber, and described storage powder bottle meal outlet links to each other with powder storing chamber.
3, according to the welding system of claim 1,2 described a kind of gas powder protection welderings, it is characterized in that the wire-feeding pipe in the described welding gun is a metal tube.
4, according to the welding system of claim 1,2,3 described a kind of gas powder protection welderings, it is characterized in that vertical direction is provided with second wire feed rolls that a pair of band sharps teeth between described first wire feed rolls and the 3rd wire feed rolls.
5, a kind of welding method of utilizing the described welding system of claim 1 to carry out is characterized in that it may further comprise the steps:
(1) connect storage powder bottle and welding gun, and inject medicinal powder, connect the flexible pipe of supplying gas between gas cylinder, pressure-reducing valve and the welding gun then, load onto welding wire, open the gas cylinder air valve from powder inlet, the source of welding current, after checking gas flow and the unobstructed property of wire feed normal, the beginning welding process;
(2) described medicinal powder is delivered in the powder storing chamber by storage powder bottle meal outlet, mix with the welding wire of the band indent that enters welding gun by wire-feeding pipe, medicament enters ignition tip by the indent of welding wire surface, enter the welding arc district again, simultaneously, protection gas enters arc region by advancing the outer gas circuit of fiber tube, participates in welding process;
(3) burning and the appearance of weld of welding wire, protective gas, medicinal powder fellowship electric arc under the effect of electric current are finished the welding process of steady and continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013233 CN1657214A (en) | 2005-03-23 | 2005-03-23 | Welding system of gas-powder shielded welding and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013233 CN1657214A (en) | 2005-03-23 | 2005-03-23 | Welding system of gas-powder shielded welding and its method |
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| Publication Number | Publication Date |
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| CN1657214A true CN1657214A (en) | 2005-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510013233 Pending CN1657214A (en) | 2005-03-23 | 2005-03-23 | Welding system of gas-powder shielded welding and its method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396418C (en) * | 2005-11-21 | 2008-06-25 | 兰州理工大学 | Arc welding torch with adjustable soldering flux strip |
| CN102744503A (en) * | 2012-07-13 | 2012-10-24 | 兰州理工大学 | Tungsten argon arc welding method using gas transmission activator |
| CN107570845A (en) * | 2017-10-11 | 2018-01-12 | 兰州理工大学 | A kind of automatic activating-tungsten inert gas welding connects method |
-
2005
- 2005-03-23 CN CN 200510013233 patent/CN1657214A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396418C (en) * | 2005-11-21 | 2008-06-25 | 兰州理工大学 | Arc welding torch with adjustable soldering flux strip |
| CN102744503A (en) * | 2012-07-13 | 2012-10-24 | 兰州理工大学 | Tungsten argon arc welding method using gas transmission activator |
| CN107570845A (en) * | 2017-10-11 | 2018-01-12 | 兰州理工大学 | A kind of automatic activating-tungsten inert gas welding connects method |
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