CN104722892A - Welding protection method for stainless steel assembly and gas proportion mixing device - Google Patents
Welding protection method for stainless steel assembly and gas proportion mixing device Download PDFInfo
- Publication number
- CN104722892A CN104722892A CN201510127447.XA CN201510127447A CN104722892A CN 104722892 A CN104722892 A CN 104722892A CN 201510127447 A CN201510127447 A CN 201510127447A CN 104722892 A CN104722892 A CN 104722892A
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- CN
- China
- Prior art keywords
- hydrogen
- welding
- arm
- mixer
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a welding protection method for a stainless steel assembly and a gas proportion mixing device. According to the method, hydrogen and argon are mixed to carry out welding protection on welding points of the stainless steel assembly, the hydrogen and the argon are mixed under assistance of the proportion mixing device with the content of the hydrogen being 5%-10% of the total content of the hydrogen and the argon, the mixed gas is then conveyed to a welding machine, and the mixed gas is then transmitted to a welding gun through the welding machine. The proportion mixing device of hydrogen and argon is adopted, oxygen in the impure argon is removed through hydrogen, quality of a welding line is guaranteed, oxygen elements on the surface of metal can also be reduced by the hydrogen so that the effect that the welding seam is shining can be achieved, in addition, the structure is simple, application is convenient, and the cost is low.
Description
Technical field
The present invention relates to a kind of welding protection method of stainless steel assembly, meanwhile, the invention still further relates to a kind of gas proportion mixing device of welding protection of stainless steel assembly.
Background technology
As everyone knows, in the welding of stainless steel assembly, common are two kinds of bond patterns, one is boxing, another kind of straight weldering (straight seam welding).Due to a variety of causes, often there is the problem such as weld seam blackout, burnt hair, oxidation, both affected attractive in appearance, and also do not met the specifications of quality of welding.
In order to overcome above-mentioned defect; many producers have employed argon gas and weld as the arc welding mode of protective gas; attractive in appearance and the requirement qualitatively of assembly after although welding can be met; but; once the purity of argon gas does not reach more than 99.95%, protective effect just can not be guaranteed, simultaneously; costly, it must cause stainless steel assembly production cost higher to the argon gas of purity 100%.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide a kind of welding protection method of stainless steel assembly.
Meanwhile, present invention also offers a kind of gas proportion mixing device of welding protection of stainless steel assembly.
For achieving the above object; the invention provides a kind of welding protection method of stainless steel assembly; which employs hydrogen to mix with argon gas and carry out welding protection to the weld of stainless steel assembly; concrete account for 5 ~ 10% of hydrogen and argon gas total content by the content of hydrogen and mix; then mixed gas is delivered to welding machine, then transfers to welding gun by welding machine.
Meanwhile, present invention also offers a kind of gas proportion mixing device of welding protection of stainless steel assembly, it comprises hydrogen cylinder; Argon bottle; Respectively by the mixer that the first arm is connected with argon bottle with hydrogen cylinder with the second arm; And the flow control system be separately positioned on the first arm and the second arm, wherein under flow control system, the content of hydrogen in mixer is made to account for 5 ~ 10% of hydrogen and argon gas total content in mixer, the hydrogen mixed in proportion and argon gas are delivered to welding machine by mixer, then transfer to welding gun by welding machine.
Preferably, flow control system comprise the flowmeter be separately positioned on the first arm and the second arm, shutoff valve, for importing the check valve of hydrogen and argon gas in mixer, wherein monitored by flowmeter and enter hydrogen and argon flow amount in mixer, regulated the content entering hydrogen and argon gas in mixer by shutoff valve.
Further, the first arm is also provided with pressure-reducing valve and Pressure gauge, Pressure gauge, pressure-reducing valve, flowmeter, shutoff valve, check valve are successively set on the first arm along the direction being delivered to mixer of hydrogen.Instantaneous stamping after being checked card by pressure-reducing valve reduction gas cylinder, makes the air-flow after pressure-reducing valve relatively more even, is convenient to the monitoring of flowmeter.
Further, the second arm is also provided with pressure-reducing valve and Pressure gauge, Pressure gauge, pressure-reducing valve, flowmeter, shutoff valve, check valve are successively set on the second arm along the direction being delivered to described mixer of argon gas.Instantaneous stamping after being opened by pressure-reducing valve reduction gas cylinder, makes the air-flow after pressure-reducing valve relatively more even, is convenient to the monitoring of flowmeter.
Compared to prior art, tool of the present invention has the following advantages:
Oxygen in impure argon gas is removed by hydrogen by the present invention, and then ensure that the quality of weld seam, and this hydrogen can also the oxygen element on surface, reducing metal simultaneously, thus makes weld seam have the effect of light, and in addition, structure is simple, and it is convenient to implement, and cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation according to hydrogen of the present invention and argon gas mixing match device;
In accompanying drawing: 1, hydrogen cylinder; 2, argon bottle; 3, the first arm; 4, the second arm; 5, mixer; 6, flow control system; 60, flowmeter; 61, shutoff valve; 62, check valve; 63, pressure-reducing valve; 64, Pressure gauge; 7, welding machine; 8, welding gun.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
As shown in Figure 1, the welding protection method of the stainless steel assembly that the present embodiment provides, it mainly have employed hydrogen and argon gas mixing match device, then the hydrogen of mixing and argon gas is delivered to welding machine 7, then transfers to welding gun 8 by welding machine 7.
Concrete, matching device comprises hydrogen cylinder 1; Argon bottle 2; Respectively by the mixer 5 that the first arm 3 is connected with argon bottle 2 with hydrogen cylinder 1 with the second arm 4; And the flow control system 6 be separately positioned on the first arm 3 and the second arm 4, wherein flow control system 6 times, make the content of hydrogen in mixer 5 account for 5 ~ 10% of hydrogen and argon gas total content in mixer.
Further, flow control system 6 comprise the flowmeter 60 be separately positioned on the first arm 3 and the second arm 4, shutoff valve 61, for importing the check valve 62 of hydrogen and argon gas in mixer 5, wherein monitored by flowmeter 60 and enter hydrogen and argon flow amount in mixer 5, regulated the content entering hydrogen and argon gas in mixer by shutoff valve 61.
In this example, the first arm 3 is also provided with pressure-reducing valve 63 and Pressure gauge 64, Pressure gauge 64, pressure-reducing valve 63, flowmeter 60, shutoff valve 61, check valve 62 are successively set on the first arm 3 along the direction being delivered to mixer 5 of hydrogen.
Meanwhile, the second arm 4 is yet provided with 63 pressure-reducing valves and Pressure gauge 64, Pressure gauge 64, pressure-reducing valve 63, flowmeter 60, shutoff valve 61, check valve 62 are successively set on the second arm 4 along the direction being delivered to mixer 5 of hydrogen.
Above-mentioned, by pressure-reducing valve 63 reduce gas cylinder open after instantaneous stamping, make the air-flow after pressure-reducing valve 63 relatively even, be convenient to the monitoring of flowmeter 6.
In addition, when the content of hydrogen in mixer 5 accounts for 5% of hydrogen and argon gas total content in mixer 5, the content of argon gas accounts for 95% of hydrogen and argon gas total content in mixer 5, welding machine 7 is delivered to by after the hydrogen of this ratio and argon gas mixing, transfer to welding gun 8 by welding machine 7 again, the commissure after the welding drawn is in golden yellow; When the content of hydrogen in mixer 5 accounts for 10% of hydrogen and argon gas total content in mixer 5, the content of argon gas accounts for 90% of hydrogen and argon gas total content in mixer 5, welding machine 7 is delivered to by after the hydrogen of this ratio and argon gas mixing, transfer to welding gun 8 by welding machine 7 again, the commissure after the welding drawn is silvery white in color.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. the welding protection method of a stainless steel assembly; it is characterized in that: described welding protection method have employed hydrogen and mixes with argon gas and carry out welding protection to the weld of stainless steel assembly; concrete account for 5 ~ 10% of hydrogen and argon gas total content by the content of hydrogen and mix; then mixed gas is delivered to welding machine, then transfers to welding gun by described welding machine.
2. a gas proportion mixing device for the welding protection of stainless steel assembly, is characterized in that: described matching device comprises hydrogen cylinder; Argon bottle; Respectively by the mixer that the first arm is connected with described argon bottle with described hydrogen cylinder with the second arm; And the flow control system be separately positioned on described first arm and described second arm, wherein under described flow control system, the content of hydrogen in described mixer is made to account for 5 ~ 10% of hydrogen and argon gas total content in mixer, the hydrogen mixed in proportion and argon gas are delivered to welding machine by described mixer, then transfer to welding gun by described welding machine.
3. the gas proportion mixing device of the welding protection of stainless steel assembly according to claim 2; it is characterized in that: described flow control system comprises the flowmeter be separately positioned on the first arm and described second arm, shutoff valve and the check valve for importing hydrogen and argon gas in described mixer; wherein monitored by described flowmeter and enter hydrogen and argon flow amount in described mixer, regulated the content entering hydrogen and argon gas in described mixer by described shutoff valve.
4. the gas proportion mixing device of the welding protection of stainless steel assembly according to claim 3; it is characterized in that: on the first described arm, be also provided with pressure-reducing valve and Pressure gauge, described Pressure gauge, pressure-reducing valve, flowmeter, shutoff valve, check valve are successively set on described first arm along the direction being delivered to described mixer of hydrogen.
5. the gas proportion mixing device of the welding protection of stainless steel assembly according to claim 3; it is characterized in that: on the second described arm, be also provided with pressure-reducing valve and Pressure gauge, described Pressure gauge, pressure-reducing valve, flowmeter, shutoff valve, check valve are successively set on described second arm along the direction being delivered to described mixer of argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127447.XA CN104722892A (en) | 2015-03-23 | 2015-03-23 | Welding protection method for stainless steel assembly and gas proportion mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127447.XA CN104722892A (en) | 2015-03-23 | 2015-03-23 | Welding protection method for stainless steel assembly and gas proportion mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104722892A true CN104722892A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510127447.XA Pending CN104722892A (en) | 2015-03-23 | 2015-03-23 | Welding protection method for stainless steel assembly and gas proportion mixing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514053A (en) * | 2017-09-19 | 2019-03-26 | 株式会社达谊恒 | Welding system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497631A (en) * | 1948-05-14 | 1950-02-14 | Air Reduction | Arc welding |
| US4292493A (en) * | 1976-11-05 | 1981-09-29 | Aga Aktiebolag | Method for decomposing ozone |
| CN1227516A (en) * | 1996-08-12 | 1999-09-01 | 特赖器械公司 | Method of welding |
| CN102317025A (en) * | 2009-02-11 | 2012-01-11 | 乔治洛德方法研究和开发液化空气有限公司 | Central gas stream contains argon gas and hydrogen, and outer gas flow contains two air-flow arc welding methods of argon gas and carbon dioxide/oxygen |
| CN103111722A (en) * | 2013-02-21 | 2013-05-22 | 上海电气核电设备有限公司 | Method for welding tubes with tube sheets under protection action of mixed gas |
| CN203240275U (en) * | 2013-03-28 | 2013-10-16 | 深圳市创美实业有限公司 | Semiautomatic switching manifold system |
-
2015
- 2015-03-23 CN CN201510127447.XA patent/CN104722892A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497631A (en) * | 1948-05-14 | 1950-02-14 | Air Reduction | Arc welding |
| US4292493A (en) * | 1976-11-05 | 1981-09-29 | Aga Aktiebolag | Method for decomposing ozone |
| CN1227516A (en) * | 1996-08-12 | 1999-09-01 | 特赖器械公司 | Method of welding |
| CN102317025A (en) * | 2009-02-11 | 2012-01-11 | 乔治洛德方法研究和开发液化空气有限公司 | Central gas stream contains argon gas and hydrogen, and outer gas flow contains two air-flow arc welding methods of argon gas and carbon dioxide/oxygen |
| CN103111722A (en) * | 2013-02-21 | 2013-05-22 | 上海电气核电设备有限公司 | Method for welding tubes with tube sheets under protection action of mixed gas |
| CN203240275U (en) * | 2013-03-28 | 2013-10-16 | 深圳市创美实业有限公司 | Semiautomatic switching manifold system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514053A (en) * | 2017-09-19 | 2019-03-26 | 株式会社达谊恒 | Welding system |
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Application publication date: 20150624 |