CN104057208A - Multifunctional welding machine - Google Patents

Multifunctional welding machine Download PDF

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Publication number
CN104057208A
CN104057208A CN201310090592.6A CN201310090592A CN104057208A CN 104057208 A CN104057208 A CN 104057208A CN 201310090592 A CN201310090592 A CN 201310090592A CN 104057208 A CN104057208 A CN 104057208A
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welding
nitrogen
gas
oxygen
module
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CN201310090592.6A
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Chinese (zh)
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吴宁
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Individual
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Priority to CN201310090592.6A priority Critical patent/CN104057208A/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
    • B23K28/00Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
    • B23K28/02Combined welding or cutting procedures or apparatus

Abstract

A multifunctional welding machine comprises PSA (pressure swing adsorption) nitrogen and oxygen preparation equipment, a TIG (tungsten inert gas) welding machine module, a gas welding torch and a TIG welding gun. The principle that oxygen is the main by-product in the PSA nitrogen preparation process is used for preparing oxygen simultaneously, so that a PSA nitrogen and oxygen preparation module of the welding machine is formed; a household gas source and the oxygen output of the PSA nitrogen and oxygen preparation module are connected with the gas welding torch to form a gas welding module group; the nitrogen output of the PSA nitrogen and oxygen preparation module is connected with the TIG module and the TIG welding gun to form a nitrogen protected TIG welding module group. The multifunctional welding machine has the outstanding advantages as follows: the welding machine can be used for performing gas welding and electric welding operations on complex, light and thin materials in places such as small maintenance shops, production workshops and even homes; the welding machine can be safely stored at home for a long time, so that the danger caused by long-time storage of various high-pressure gases at home is reduced; the welding machine is simple in structure, convenient to operate, economical and practical.

Description

A kind of multifunctional welding machine
Technical field
The present invention relates to a kind of multifunctional welding machine, is a kind ofly can carry out gas welding specifically, can carry out manual metal-arc welding and Heliarc welding again, can also be as the equipment of family expenses oxygen machine.
Background technology
In little repair shop, shop front and production workshop, and the small-sized welding machine of the use that all needs repairing in the ubiquitous detached house that has garden and a garage of western countries, can divide a variety of by welding machine, for different purposes, as long as but conventionally have a gas welding device and a multiduty electric welding machine just can substantially cover most of repair purpose.But gas welding needs two kinds of gases conventionally, oxygen and acetylene gas, in general conventional gas cylinder volume ratio is larger, and carrying is got up very heavy, and long term storage is absolutely unsafe.Although common interchange or direct current manual arc welding machine also can be made smaller portable of volume now, but be only suitable for the thick materials such as the thicker industrial steel plate of welding and thicker reinforcing bar, girder steel, angle steel, be not suitable for welding the sheet metal of household electrical appliance, thin copper pipe, the materials such as thin-wall stainless steel of balcony and antitheft net of door/window, only have in recent years the argon arc welding machine generally using to be more suitable for welding thin plate, stainless steel material and non-ferrous metal, and design more advanced, use more convenient.
Argon arc welding belongs to TIG weldering, i.e. it is a kind of that inert gas tungsten electrode protection is welded, and argon arc welding is that argon gas is as the arc welding of protective gas and electric arc medium.Conventional inert gas-shielded arc welding is that electric arc burns between non-melt pole (normally tungsten electrode) and workpiece; at welding arc, around flow through a kind of inert gas (commonly using argon gas) of few and metal chemically reactive; form a protection gas hood; make tungsten electrode termination, electric arc and molten bath and the metal in high temperature do not contact with air; the anti-oxidation of energy and absorption pernicious gas; thereby form fine and close welding junction, its mechanical property is very good.
In order to guarantee the starting the arc easily, improve welding quality, argon arc welding machine has also been set up the device of the supercharging starting the arc at output, and it utilizes another group time limit of transformer of high-frequency and high-voltage generator as booster transformer, while making high-frequency and high-voltage generator work, also raised the voltage of output simultaneously, adopted the starting the arc mode of high frequency, high-voltage breakdown, first high-frequency and high-voltage in addition between electrode needle (tungsten pin) and workpiece, puncture argon gas, make it conduction, then supply with lasting electric current, guarantee arc stability.After the starting the arc, supercharging device is again along with high-frequency high-voltage flow-generator is disconnected together.Argon arc welding machine also requires argon gas to walk afterwards first, and electric current relative gas got ahead afterwards, and these all control realization by hand switch.
And gas welding belongs to soldering, the gas of gas welding (oxygen, acetylene) is that directly burning provides heat.Therefore above these two kinds of welding methods have basic difference.But above-mentioned gas, two kinds of welding methods of electricity all need to provide the help of Compressed Gas, namely need the industrial gas cylinders such as inflammable high pressure oxygen, acetylene gas bottle and argon bottle, this gives is not or not specialty weld productions, just do the little shop of maintenance and production workshop or inside carry out once in a while welding operation and maintenance and caused great difficulty.Family the inside can not long-term storage does not often use and the inflammable and explosive dangerous goods such as multiple gas cylinder because these things are not only very dangerous, and the gas cylinder of the relatively large heaviness of these volumes also can take in family with StoreFront in the confined space.In addition, buying and transport these gas and gas cylinder neither a nothing the matter, most places, and particularly relatively remote little place is that this service is not provided, can welding job all need in all places, prior art is difficult to meet above-mentioned all these and wants condition for peace.
Summary of the invention
For prior art above shortcomings, problem to be solved by this invention is, a kind of multifunctional welding machine is provided, can be in all families that adopt modern way of life, and the place such as little maintenance shop front, production workshop utilizes it to carry out gas welding and electric welding operation, but also want the family-friendly fine work that need to weld multiple material, exempt the specific conditions such as support that common welding manner must rely on cyclinder gas, and can use at any time, long-term safety deposits, and simple in structure, volume is small and exquisite, easy to operate, economical and practical.
In order to achieve the above object, the present invention has adopted following technical scheme:
1, adopt natural gas in home or oil liquefied gas replaced acetylene gas to carry out gas welding.Natural gas main component is methane, packs the also more common of steel cylinder transportation and use after liquefaction into, and liquefied petroleum gas is used history the earliest at home, and its main component is propane, but is also mixed with a small amount of propylene, butane and butylene.Although their calorific value or some is on the low side, but if small-sized welding, as keep in repair family's common electrics such as air-conditioning, refrigerator, gas heater, the welding of carrying out brazing, silver soldering and the common sheet iron of household electrical appliance completely can with natural gas and liquefied petroleum gas even coal gas do thermal source welding, and natural gas, oil liquefied gas in family have very long use historical, using method maturation is safe and reliable.
2, in place of working, produce on the spot oxygen and replace purchase bottle oxugen.From method for producing oxygen through, seeing in the market maximum also the most promising is exactly molecular sieve oxygen generation.In eighties of last century sixties, U.S. a company has found a kind of alumino-silicate compound of cubic lattice, there is uniform microcellular structure, these micro-pore diameter sizes evenly, the Molecular Adsorption less than its diameter can be arrived to the inside of vestibule, and polar molecule and saturated molecule are had to preferential adsorption capacity, thereby can polarity degree is different, degree of saturation is different, and the different molecular separation of molecular size difference and boiling point comes.So this compound is used in the industrial molecular sieve that just cries, this process by adsorbing separation composition of air is just called pressure swing adsorption method, is exactly PSA oxygen gas technique.
Molecular sieve has also divided multiple according to material in fact, picture zeolite molecular sieve, carbon molecular sieve etc., when zeolite molecular sieve has pressurization, the adsorption capacity of nitrogen is increased, the feature that during decompression, adsorption capacity reduces, so zeolite molecular sieve is the most general of use, adsorption of nitrogen during pressurization, the method that during decompression, nitrogen desorbs from molecular sieve realizes the method oxygen of pressure-variable adsorption, and we also can say nitrogen processed in this way certainly.
Conventional PSA oxygen technique generally all comprises the following steps, absorption, emptying, flushing, all pressure and pressurisings.Have at present and adopt two PSA, three PSA, four PSA and Vacuum Pressure Swing Adsorption technique.The flow process of so-called two PSA is, when first is equipped with the container of molecular screen material, be that adsorption tower is produced oxygen while adsorbing, second adsorption tower bleeds off pressure, absorber is regenerated, then with a part of gas product, purge bed, then be pressurized to adsorptive pressure, complete like this circulation.First, air enters adsorption tower 1 via compressor at the bottom of by tower, at this moment airborne nitrogen, moisture content, carbon dioxide, hydrocarbon etc. are adsorbed by the adsorbent in tower (molecular sieve), oxygen is standby by the pipeline input oxygen surge tank of tower top, when the adsorbate in tower 1 reaches certain degree of saturation, serial transfer valve automatically cuts out, switches and opens adsorption tower 2, and adsorption tower 2 is started working, 1 of adsorption tower is reduced pressure adsorbate desorption is discharged by vavuum pump, and adsorbent recovers adsorption capacity.Two towers like this (or multitower) carry out cycle switching, can continuously obtain required oxygen.
3, with the protective gas argon gas that nitrogen maximum in air replaces in current argon arc welding, carry out gas shield electric welding.Because nitrogen is also inert gas, stable chemical nature torpescence, generally not with other substance reactions, so nitrogen can be done the protective gas of most metal solder.Nitrogen, can completely cut off weldment and air to a great extent, is mainly the oxygen that completely cuts off to a certain extent air the inside, prevent weldment at high temperature with oxygen vigorous reaction, prevent that metal is by severe oxidation.The electrode that produces electric arc in the argon arc welding of our today is exactly tungsten electrode, and former glass incandescent lamp bulb is full of nitrogen and protects and form not oxidized the burning of tungsten filament of high temperature after energising and luminous.The existing nitrogen that adopts replaces argon gas as the protective gas of Austenitic stainless steel pipe road back-protective TIG weldering, the precedent of inflated with nitrogen project success in pipeline.Therefore to most metals, welding should be effective as the arc welding of electrode, with nitrogen, as protective gas, to carry out usining tungsten.
Air is a kind of mixture, and in general its comparison of ingredients is fixed.By volume mark calculates, approximately: nitrogen 78%, oxygen 21%, rare gas 0.94%, carbon dioxide 0.03%, other gases and impurity 0.03%.The composition of visible air be take nitrogen, oxygen as main, and wherein nitrogen accounts for 4/5 of volume of air, and oxygen accounts for 1/5 of volume of air.If a machine can be airborne oxygen separation out, so remaining has been all just almost nitrogen, otherwise also sets up.
The principle of small-sized PSA nitrogen making machine and PSA oxygen are just the same, just emphasis difference.According to pressure-variable adsorption principle, adopt high-quality carbon molecular sieve as adsorbent, through the compressed air of purge drying, the absorption of pressurizeing in absorber, decompression desorption.Due to same kinetic effect, diffusion rate is much larger than nitrogen in carbon molecular sieve micropore for oxygen, and when absorption does not reach balance, nitrogen is got up by enrichment in gas phase, forms finished product nitrogen.Then be decompressed to normal pressure, other impurity such as oxygen that adsorbent desorption adsorbs, realize regeneration.If system adopts two bed process, two adsorption towers, nitrogen is produced in a tower absorption, and another tower desorption and regeneration, by procedure auto-control, makes two tower alternate cycles work, to realize the object of the high-quality nitrogen of continuous production.If the nitrogen gas purity that this method produces is processed appropriately, conventionally can reach 99.99% even more than.
Because except other composition accountings examples of nitrogen and oxygen are few, so in the process of PSA oxygen and nitrogen, both are byproduct substantially each other in air.PSA oxygenerator lays particular emphasis on the purity of oxygen, and a small amount of waste gas of manufacturing process is discharged together with nitrogen; Same PSA nitrogen processed lays particular emphasis on the purity of nitrogen and a small amount of waste gas of manufacturing process is discharged together with oxygen.According to above-mentioned principle, we have just had the way of following three other economy of level to form our PSA nitrogen processed, oxygen module.A, because the oxygen that will use in the present invention is mainly for combustion-supporting, therefore as long as we reduce the generation of pilot process waste gas as far as possible, even if make to reach other gases of sneaking into minute quantity in oxygen, also very little on its impact; Or be the oxygen that oxygen uptake is used; it is also indifferent that a small amount of composition of air is sneaked in the inside; therefore; from most economical angle; our PSA nitrogen processed, oxygen module can directly adopt nucleus equipment and the technique of PSA nitrogen processed; the purity that stresses nitrogen, obtains the oxygen that purer nitrogen takes second place as protective gas and the purity of welding.B, we can appropriately select molecular screen material, preferably adopt three PSA techniques, set more flexibly the working procedure of air valve group, special waste gas outlet is set, a small amount of waste gas that nitrogen processed, the oxygen preparations such as each flushing use gas in adsorption tower and adsorption tower alternation circulation are produced can discharge separately, reaches oxygen and the nitrogen made simultaneously and all has higher purity.C, independent nitrogen processed and oxygen generating plant can be installed simultaneously as our PSA nitrogen processed, oxygen module, simultaneously and obtain continuously high-quality nitrogen and oxygen.
We just provide a kind of effective approach there is no under the condition of argon gas to realize TIG welding with nitrogen as protective gas like this.Due to PSA nitrogen processed, oxygenerator; manufacturing oxygen and nitrogen carries out continuously; production cost is extremely low; valuable and rare unlike argon gas; therefore can cancel common argon arc tig arc welding machine central air valve and protective gas control circuit; simplify welder circuit, also simplified welder's operation easier simultaneously.
4, in order to make up nitrogen, at high temperature chemical property trend is active, and nitrogen arc temperature drift has the problem of nitrogenation to some metals, and we can adopt another technology, i.e. the mature experience of carbon-dioxide arc welding.CO2 gas shielded arc welding is to utilize CO2 gas as the welding method of protective gas, a kind of for MAG (active gas shielded arc welding connects) weldering.Because carbon dioxide gas is with the same arc flame temperature drift of nitrogen, neither a kind of desirable welding protection gas, for no other reason than that its economy is just widely used.Its main feature is that current density die deposition rate is high, so employing send welding wire mechanism to enhance productivity automatically conventionally, forms melting pole gas shielded arc welding MIG weldering; Because CO2 has oxidisability, CO2 gas decomposes in welding process, and oxidisability is strong, so general, adopts the welding wire with medicine core, and self-protection flux-cored wire, is commonly called as " gas shield welding wire ".We can be applied to this technology in nitrogen protection weldering equally, and special production application is just passable in gas shield welding wire and the welding rod of nitrogen protection weldering.
Early existing self-shield TIG welding wire and welding rod, just owing to lacking the cooperation of protective gas, affect the performance of its performance to a certain extent in fact, and therefore application is not universal.For example, for many years, during stainless steel welding, back side oxidation is an insoluble problem in welding procedure always; the general back side argon-filled protection that adopts, still, when container larger; the long or back side of pipeline is during without air storage space, not only a large amount of waste argon gas and still occur protecting bad situation.In order to solve this technique difficult problem, someone tests and adopts cheap nitrogen to pour in a large number as protective gas, has obtained good welding effect, has obtained successfully.More someone adopts the welding of self-shield stainless steel TIG welding wire also to succeed, and during welding, protection coating can be penetrated into the back side, molten bath; form the protective layer of one deck densification; make the back side not oxidated, cooling rear this layer of skull meeting Automatic-falling, very easily removes by the mode of compressed air or water punching.The using method of this welding wire is identical with general T IG welding wire, and coating can not affect positive electric arc and bath form.
Above integrated condition is for we combine dual-purpose tig arc welding machine module and the domestic gas source of small-sized PSA nitrogen processed, oxygenerator module, automatic switchover manual welding and argon arc welding, design a kind of multifunctional welding machine and welding method thereof convenience is provided, and can at least provide following four kinds of functions: in 1 use man, the combustion gas in kitchen is as source of the gas, combustion adjuvant is made in the oxygen output of small-sized PSA nitrogen processed, oxygenerator module, by gas torch, carries out gas welding operation; The nitrogen output of the small-sized PSA of 2 use nitrogen processed, oxygenerator module replaces argon gas as protective gas, utilizes tig arc welding machine module to carry out nitrogen protection welding operation by tungsten electrode welding gun; 3 utilize the large power supply having in general T IG welding machine module, carry out the manual metal-arc welding of common welding rod by common soldering turret; 4 oxygen that directly produce by small-sized PSA nitrogen processed, oxygenerator module, provide oxygen uptake function.
Concrete grammar is as follows:
1, a multifunctional welding machine, comprising: pressure-variable adsorption legal system nitrogen and oxygen generating plant, TIG inert gas-shielded arc welding welding machine module, gas torch and TIG tungsten electrode welding gun, and its feature is; Adopt PSA equipment of making nitrogen technique, obtain purer nitrogen as the protective gas of this welding machine welding, utilizing oxygen in PSA nitrogen process processed is the principle of its main byproduct, and while oxygen producing forms PSA nitrogen processed, the oxygen module of this welding machine; By the TIG inert gas-shielded arc welding welding machine of having cancelled air valve, protective gas control circuit and shell, form TIG inert gas-shielded arc welding module of the present invention; Domestic gas source adds that the oxygen output of PSA nitrogen processed, oxygenerator module is connected with gas torch, forms gas welding module group of the present invention; The nitrogen output of PSA nitrogen processed, oxygenerator module is connected with TIG inert gas-shielded arc welding module, TIG tungsten electrode welding gun, forms nitrogen protection TIG weldering module group of the present invention.
2, in the situation that requiring welding quality higher; in order to ensure the quality of products, can adopt special welding wire, welding rod; described special welding wire, welding rod are; be suitable for nitrogen as protective gas have overlay film or medicine core from shield welding wire, welding rod; be used for making up nitrogen as the existing defect of TIG inert gas-shielded arc welding, improve welding quality.
3, at oxygen output port of the present invention, be also provided with oxygen uptake output interface unit, can when needs oxygen uptake, use.
4, above-mentioned TIG inert gas-shielded arc welding module, can be the welding machine module with protective gas arc, hand arc dual-use, can realize manual electric arc welding function simultaneously and on the machine shell, be provided with manual electric arc welding soldering turret interface.
5, above-mentioned PSA nitrogen processed, oxygen module can be, integrate PSAZhi Danhe oxygen mechanism and control program thereof, special waste gas outlet is set, a small amount of waste gas that nitrogen processed, the oxygen preparations such as each flushing use gas in adsorption tower and adsorption tower alternation circulation are produced can discharge separately, reaches oxygen and the nitrogen made simultaneously and all has higher purity.
The present invention compared with prior art, its outstanding advantages is: can utilize in places such as little maintenance shop front, production workshops it to carry out gas welding and the electric welding operation of material with complex, but also can enter family, particularly that separate house family that has garage and garden of western countries, is used for welding the fine work that comprises the multiple materials such as thin-wall stainless steel material.The present invention at home long-term safety deposits, and reduces the danger of the various gases at high pressure of long term storage at home, and simple in structure, volume is small and exquisite, easy to operate, economical and practical.
Accompanying drawing explanation
Accompanying drawing is the theory diagram of a kind of multifunctional welding machine of the present invention.
Marked in the drawings: 1 is PSA nitrogen processed, oxygenerator module; 2 is TIG inert gas-shielded arc welding module; 3 is gas torch; 4 is TIG tungsten electrode welding gun; 5 is oxygen uptake output interface unit; 6 is domestic gas source.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed.
By a kind of multifunctional welding machine shown in accompanying drawing, comprising: pressure-variable adsorption legal system nitrogen and oxygen generating plant, TIG inert gas-shielded arc welding welding machine module, gas torch and TIG tungsten electrode welding gun, its feature is; Adopt PSA equipment of making nitrogen technique, obtain purer nitrogen as the protective gas of this welding machine welding, utilizing oxygen in PSA nitrogen process processed is the principle of its main byproduct, and while oxygen producing forms PSA nitrogen processed, the oxygen module 1 of this welding machine; By the TIG inert gas-shielded arc welding welding machine of having cancelled air valve, protective gas control circuit and shell, form TIG inert gas-shielded arc welding module 2 of the present invention; Domestic gas source 6 adds that the oxygen output of PSA nitrogen processed, oxygenerator module 1 is connected with gas torch 3, forms gas welding module group of the present invention; The nitrogen output of PSA nitrogen processed, oxygenerator module 1 is connected with TIG inert gas-shielded arc welding module 2, TIG tungsten electrode welding gun 4, forms nitrogen protection TIG weldering module group of the present invention.
In the situation that requiring welding quality higher; in order to ensure the quality of products, can adopt special welding wire, welding rod; described special welding wire, welding rod are; be suitable for nitrogen as protective gas have overlay film or medicine core from shield welding wire, welding rod; be used for making up nitrogen as the existing defect of TIG inert gas-shielded arc welding, improve welding quality.
At oxygen output port of the present invention, be also provided with oxygen uptake output interface unit 5, can when needs oxygen uptake, use.
Above-mentioned TIG inert gas-shielded arc welding module, can be the welding machine module with protective gas arc, hand arc dual-use, can realize manual electric arc welding function simultaneously and on the machine shell, be provided with manual electric arc welding soldering turret interface.
Above-mentioned PSA nitrogen processed, oxygen module 1 can be, integrate PSAZhi Danhe oxygen mechanism and control program thereof, special waste gas outlet is set, a small amount of waste gas that nitrogen processed, the oxygen preparations such as each flushing use gas in adsorption tower and adsorption tower alternation circulation are produced can discharge separately, reaches oxygen and the nitrogen made simultaneously and all has higher purity.

Claims (5)

1. a multifunctional welding machine, comprising: pressure-variable adsorption legal system nitrogen and oxygen generating plant, TIG inert gas-shielded arc welding welding machine module, gas torch and TIG tungsten electrode welding gun, is characterized in that; Adopt PSA equipment of making nitrogen technique, obtain purer nitrogen as the protective gas of this welding machine welding, utilizing oxygen in PSA nitrogen process processed is the principle of its main byproduct, and while oxygen producing forms PSA nitrogen processed, the oxygen module of this welding machine; By the TIG inert gas-shielded arc welding welding machine of having cancelled air valve, protective gas control circuit and shell, form TIG inert gas-shielded arc welding module of the present invention; Domestic gas source adds that the oxygen output of PSA nitrogen processed, oxygenerator module is connected with gas torch, forms gas welding module group of the present invention; The nitrogen output of PSA nitrogen processed, oxygenerator module is connected with TIG inert gas-shielded arc welding module, TIG tungsten electrode welding gun, forms nitrogen protection TIG weldering module group of the present invention.
2. according to a kind of multifunctional welding machine of claim 1; it is characterized in that: in the situation that requiring welding quality higher; in order to ensure the quality of products, can adopt special welding wire, welding rod; described special welding wire, welding rod are; be suitable for nitrogen as protective gas have overlay film or medicine core from shield welding wire, welding rod; be used for making up nitrogen as the existing defect of TIG inert gas-shielded arc welding, improve welding quality.
3. according to a kind of multifunctional welding machine of claim 1, it is characterized in that: the oxygen output port at him is also provided with oxygen uptake output interface unit, can when needs oxygen uptake, use.
4. according to a kind of multifunctional welding machine of claim 1; it is characterized in that: described TIG inert gas-shielded arc welding module; can be the welding machine module with protective gas arc, hand arc dual-use, can realize manual electric arc welding function simultaneously and on the machine shell, be provided with manual electric arc welding soldering turret interface.
5. according to a kind of multifunctional welding machine of claim 1, it is characterized in that: described PSA nitrogen processed, oxygen module can be, integrate PSAZhi Danhe oxygen mechanism and control program thereof, special waste gas outlet is set, a small amount of waste gas that nitrogen processed, the oxygen preparations such as each flushing use gas in adsorption tower and adsorption tower alternation circulation are produced can discharge separately, reaches oxygen and the nitrogen made simultaneously and all has higher purity.
CN201310090592.6A 2013-03-21 2013-03-21 Multifunctional welding machine Pending CN104057208A (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252322A (en) * 1998-10-22 2000-05-10 普拉塞尔技术有限公司 Variable pressure absorbing method for producing oxygen-enriched gas
CN1608711A (en) * 2003-10-24 2005-04-27 国睦工业股份有限公司 Gas flow controlling method and mechanical valve unit suitable for pressure swing adsorption oxygenerator
CN1660468A (en) * 2004-02-27 2005-08-31 可乐丽化学株式会社 Separating method of mixed gas,nitrogen separator and its consumption system
CN1683595A (en) * 1993-09-06 2005-10-19 氢技术有限公司 Electrolytic bath device for electrolytic water
CN101927414A (en) * 2009-06-24 2010-12-29 通用电气公司 Welding control system
CN102034723A (en) * 2009-10-08 2011-04-27 林德股份公司 Method and device for wire bonding
CN201856041U (en) * 2010-04-30 2011-06-08 金周地 Dual-purpose machine for flame cutting and gas shielded welding
WO2011076109A1 (en) * 2009-12-22 2011-06-30 大连理工大学 Low-power laser and arc hybrid welding method and device
CN102350556A (en) * 2011-09-23 2012-02-15 宁波福士汽车部件有限公司 Turntable type automatic aluminum soldering device
CN203171152U (en) * 2013-03-21 2013-09-04 吴宁 Multifunctional welding machine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1683595A (en) * 1993-09-06 2005-10-19 氢技术有限公司 Electrolytic bath device for electrolytic water
CN1252322A (en) * 1998-10-22 2000-05-10 普拉塞尔技术有限公司 Variable pressure absorbing method for producing oxygen-enriched gas
CN1608711A (en) * 2003-10-24 2005-04-27 国睦工业股份有限公司 Gas flow controlling method and mechanical valve unit suitable for pressure swing adsorption oxygenerator
CN1660468A (en) * 2004-02-27 2005-08-31 可乐丽化学株式会社 Separating method of mixed gas,nitrogen separator and its consumption system
CN101927414A (en) * 2009-06-24 2010-12-29 通用电气公司 Welding control system
CN102034723A (en) * 2009-10-08 2011-04-27 林德股份公司 Method and device for wire bonding
WO2011076109A1 (en) * 2009-12-22 2011-06-30 大连理工大学 Low-power laser and arc hybrid welding method and device
CN201856041U (en) * 2010-04-30 2011-06-08 金周地 Dual-purpose machine for flame cutting and gas shielded welding
CN102350556A (en) * 2011-09-23 2012-02-15 宁波福士汽车部件有限公司 Turntable type automatic aluminum soldering device
CN203171152U (en) * 2013-03-21 2013-09-04 吴宁 Multifunctional welding machine

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Application publication date: 20140924