CN115415657A - Thermal pressure welding method for building aluminum material - Google Patents
Thermal pressure welding method for building aluminum material Download PDFInfo
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- CN115415657A CN115415657A CN202210917460.5A CN202210917460A CN115415657A CN 115415657 A CN115415657 A CN 115415657A CN 202210917460 A CN202210917460 A CN 202210917460A CN 115415657 A CN115415657 A CN 115415657A
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 102
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000000463 material Substances 0.000 title claims abstract description 98
- 238000003466 welding Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 23
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000004140 cleaning Methods 0.000 claims abstract description 34
- 238000010891 electric arc Methods 0.000 claims abstract description 21
- 229910052786 argon Inorganic materials 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000000889 atomisation Methods 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- 238000002161 passivation Methods 0.000 claims description 29
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 24
- 239000008367 deionised water Substances 0.000 claims description 24
- 229910021641 deionized water Inorganic materials 0.000 claims description 24
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 12
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 12
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- AAQNGTNRWPXMPB-UHFFFAOYSA-N dipotassium;dioxido(dioxo)tungsten Chemical compound [K+].[K+].[O-][W]([O-])(=O)=O AAQNGTNRWPXMPB-UHFFFAOYSA-N 0.000 claims description 12
- 235000019253 formic acid Nutrition 0.000 claims description 12
- 239000003112 inhibitor Substances 0.000 claims description 12
- 235000002949 phytic acid Nutrition 0.000 claims description 12
- 229910052700 potassium Inorganic materials 0.000 claims description 12
- 239000011591 potassium Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000012300 argon atmosphere Substances 0.000 claims description 7
- IVKNZCBNXPYYKL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 IVKNZCBNXPYYKL-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 6
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims description 6
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 4
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004566 building material Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000007731 hot pressing Methods 0.000 abstract description 2
- 230000001680 brushing effect Effects 0.000 description 17
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
- C23C22/44—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a thermal pressure welding method of a building aluminum material, which comprises the following steps: step S1, processing the surface of an aluminum material; s2, performing reciprocating heating on the surface to be welded of the aluminum material through electric arc until the aluminum material of the surface to be welded is in a plastic state, then removing an oxidation film by using cathode atomization, introducing argon for protection, and removing electric arc heating; s3, applying pressure to the surface to be welded of the aluminum material when welding, controlling the pressure to be unchanged until the whole body is cooled to room temperature, then stopping introducing argon, removing the pressure, and finishing welding; the aluminum product to be welded is heated in a reciprocating mode through electric arcs until the aluminum product to be welded is in a plastic state, then the oxide film of the aluminum product is removed through cathode atomization, hot-press welding is conducted, the oxide film of the aluminum product to be welded can be removed quickly through electric arc hot pressing after cleaning liquid is passed through, other surfaces of the welded aluminum product are provided with compact oxide films, and the aluminum product can be protected.
Description
Technical Field
The invention belongs to the technical field of metal welding, and particularly relates to a thermal pressure welding method for a building aluminum material.
Background
With the rapid development of the construction industry, the demand for the connection of aluminum materials and dissimilar materials is increasing. However, welding between aluminum and steel is always a hot spot and a difficult problem in the field of connection, and the main difficulty of welding between aluminum and steel is as follows: the difference of the thermophysical properties of the two is large, and the internal stress level of the welded seam is high; the two are easy to react to generate intermetallic compounds, so that the toughness of the welding seam is reduced; thirdly, the surface of the aluminum alloy has a compact oxide film, which hinders the combination of dissimilar materials. At present, the connection of aluminum steel dissimilar materials mainly adopts a brazing method, a fusion brazing method, a friction welding method and a mechanical connection method. Recently emerging thermocompression bonding, which heats and pressurizes sufficiently to cause macroscopic deformation of the workpiece, is increasingly used for joining dissimilar materials. How to improve the aluminum-steel dissimilar material hot-press welding engineering environment and improve the dissimilar metal joint connection strength, however, how to break the hindering effect of an oxidation film in the welding process is a problem to be solved by hot-press welding.
Disclosure of Invention
In order to solve the technical problem, the invention provides a thermal pressure welding method for building aluminum materials.
The purpose of the invention can be realized by the following technical scheme:
a thermal pressure welding method for building aluminum materials comprises the following steps:
step S1, aluminum material surface treatment: processing the surface to be welded of the aluminum material into a shape larger than the area of the end surface vertical to the axis of the aluminum material, then placing the aluminum material in a cleaning solution, ultrasonically cleaning for 5min, then placing the aluminum material in an argon atmosphere, preheating the cleaned aluminum material to 75-80 ℃, then uniformly coating the surface to be welded with a passivation solution, standing for 5-10min after finishing the coating, then coating a promoting solution, standing for 5min, and finally coating the passivation solution again to prepare the treated aluminum material;
s2, performing reciprocating heating on the surface to be welded of the aluminum material through electric arc until the aluminum material of the surface to be welded is in a plastic state, then removing an oxidation film through cathode atomization, introducing argon for protection, and removing electric arc heating;
and S3, applying pressure to the surface to be welded of the aluminum material when welding, controlling the pressure to be unchanged until the whole body is cooled to room temperature, then stopping introducing argon, removing the pressure and finishing welding.
Further, the cleaning solution comprises the following raw materials in parts by weight: 6-12 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 1-3 parts of OP-10,3-5 parts of triethanolamine, 2-5 parts of sodium hydroxide and 90-95 parts of deionized water.
Further, the cleaning solution comprises the following steps: and uniformly mixing the sodium alcohol ether sulphate, OP-10, triethanolamine, sodium hydroxide and deionized water to prepare the cleaning solution.
Further, the passivation solution comprises the following raw materials in parts by weight: 5-12 parts of formic acid, 1-2 parts of hydrofluoric acid, 3-5 parts of potassium tungstate, 1-3 parts of potassium phytate, 2-5 parts of corrosion inhibitor and 80-90 parts of deionized water.
Further, the passivation solution is prepared by the following steps: and uniformly mixing formic acid, hydrofluoric acid, potassium tungstate, potassium phytate, a corrosion inhibitor and deionized water to prepare the passivation solution.
Further, in the step S2, the electric arc is any one of alternating current argon tungsten-arc welding or variable polarity argon tungsten-arc welding.
Further, the promoting liquid is any one of a copper nitrate solution with the mass fraction of 10%, a calcium nitrate solution with the mass fraction of 10% and a zinc nitrate solution with the mass fraction of 10%.
The invention has the beneficial effects that:
the method comprises the steps of treating the surface to be welded of the aluminum material before welding, cleaning the aluminum material through cleaning liquid after processing to remove stains and grease on the surface of the aluminum material, passivating the aluminum material except the surface to be welded through passivating liquid in an argon atmosphere, brushing promoting liquid to form a passivating layer on the surface of the aluminum material, wherein the passivating layer is a compact oxide film and can protect other surfaces of the aluminum material, heating the surface to be welded of the aluminum material in a reciprocating mode through electric arcs until the aluminum material on the surface to be welded is in a plastic state, removing the oxide film of the aluminum material by using cathode atomization, carrying out hot-press welding, rapidly removing the oxide film on the surface to be welded through electric arc hot-pressing after cleaning liquid is firstly carried out, and protecting the aluminum material due to the fact that other surfaces of the aluminum material after welding are provided with compact oxide films.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A thermal pressure welding method for building aluminum materials comprises the following steps:
step S1, aluminum material surface treatment: processing the surface to be welded of the aluminum material into a shape larger than the area of an end face vertical to the axis of the aluminum material, then placing the aluminum material in a cleaning solution, ultrasonically cleaning for 5min, then placing the aluminum material in an argon atmosphere, preheating the cleaned aluminum material to 75 ℃, then uniformly brushing the surface to be welded with a passivation solution, standing for 5min after brushing is finished, brushing a copper nitrate solution with the mass fraction of 10%, standing for 5min, and finally brushing the passivation solution again to prepare the treated aluminum material;
s2, performing reciprocating heating on the surface to be welded of the aluminum material through electric arc until the aluminum material of the surface to be welded is in a plastic state, then removing an oxidation film by using cathode atomization, introducing argon for protection, and removing electric arc heating;
and S3, applying pressure to the surface to be welded of the aluminum material when welding, controlling the pressure to be unchanged until the whole body is cooled to room temperature, then stopping introducing argon, removing the pressure and finishing welding.
The cleaning solution comprises the following raw materials in parts by weight: 6 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 1 part of OP-10,3 parts of triethanolamine, 2 parts of sodium hydroxide and 90 parts of deionized water.
The cleaning solution is prepared by the following steps: and uniformly mixing the sodium alcohol ether sulphate, OP-10, triethanolamine, sodium hydroxide and deionized water to prepare the cleaning solution.
The passivation solution comprises the following raw materials in parts by weight: 5 parts of formic acid, 1 part of hydrofluoric acid, 3 parts of potassium tungstate, 1 part of potassium phytate, 2 parts of a corrosion inhibitor and 80 parts of deionized water.
The passivation solution is prepared by the following steps: formic acid, hydrofluoric acid, potassium tungstate, potassium phytate, a corrosion inhibitor and deionized water are uniformly mixed to prepare passivation solution.
The electric arc is alternating current tungsten electrode argon arc welding.
Example 2
A thermal pressure welding method for building aluminum materials comprises the following steps:
step S1, aluminum material surface treatment: processing the surface to be welded of the aluminum material into a shape larger than the area of the end surface vertical to the axis of the aluminum material, then placing the aluminum material in a cleaning solution, ultrasonically cleaning for 5min, then placing the aluminum material in an argon atmosphere, preheating the cleaned aluminum material to 78 ℃, then uniformly brushing the surface to be welded with a passivation solution, standing for 8min after brushing is finished, then brushing a copper nitrate solution with the mass fraction of 10%, standing for 5min, and finally brushing the passivation solution again to prepare the treated aluminum material;
s2, performing reciprocating heating on the surface to be welded of the aluminum material through electric arc until the aluminum material of the surface to be welded is in a plastic state, then removing an oxidation film through cathode atomization, introducing argon for protection, and removing electric arc heating;
and S3, applying pressure to the surface to be welded of the aluminum material when welding, controlling the pressure to be unchanged until the whole body is cooled to room temperature, then stopping introducing argon, removing the pressure and finishing welding.
The cleaning solution comprises the following raw materials in parts by weight: 8 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 2 parts of OP-10,4 parts of triethanolamine, 3 parts of sodium hydroxide and 92 parts of deionized water.
The cleaning solution is prepared by the following steps: and uniformly mixing the sodium alcohol ether sulphate, OP-10, triethanolamine, sodium hydroxide and deionized water to prepare the cleaning solution.
The passivation solution comprises the following raw materials in parts by weight: 8 parts of formic acid, 1 part of hydrofluoric acid, 4 parts of potassium tungstate, 2 parts of potassium phytate, 3 parts of a corrosion inhibitor and 85 parts of deionized water.
The passivation solution is prepared by the following steps: and uniformly mixing formic acid, hydrofluoric acid, potassium tungstate, potassium phytate, a corrosion inhibitor and deionized water to prepare the passivation solution.
The electric arc is alternating current tungsten electrode argon arc welding.
Example 3
A thermal pressure welding method for building aluminum materials comprises the following steps:
step S1, aluminum material surface treatment: processing the surface to be welded of the aluminum material into a shape larger than the area of an end face vertical to the axis of the aluminum material, then placing the aluminum material in a cleaning solution, ultrasonically cleaning for 5min, then placing the aluminum material in an argon atmosphere, preheating the cleaned aluminum material to 78 ℃, then uniformly brushing the surface to be welded with a passivation solution, standing for 80min after brushing is finished, brushing a calcium nitrate solution with the mass fraction of 10%, standing for 5min, and finally brushing the passivation solution again to prepare the treated aluminum material;
s2, performing reciprocating heating on the surface to be welded of the aluminum material through electric arc until the aluminum material of the surface to be welded is in a plastic state, then removing an oxidation film through cathode atomization, introducing argon for protection, and removing electric arc heating;
and S3, applying pressure to the surface to be welded of the aluminum material when welding, controlling the pressure to be unchanged until the whole body is cooled to room temperature, then stopping introducing argon, removing the pressure and finishing welding.
The cleaning solution comprises the following raw materials in parts by weight: 10 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 2 parts of OP-10,4 parts of triethanolamine, 4 parts of sodium hydroxide and 94 parts of deionized water.
The cleaning solution is prepared by the following steps: and uniformly mixing the sodium alcohol ether sulphate, OP-10, triethanolamine, sodium hydroxide and deionized water to prepare the cleaning solution.
The passivation solution comprises the following raw materials in parts by weight: 10 parts of formic acid, 2 parts of hydrofluoric acid, 4 parts of potassium tungstate, 2 parts of potassium phytate, 4 parts of a corrosion inhibitor and 88 parts of deionized water.
The passivation solution is prepared by the following steps: formic acid, hydrofluoric acid, potassium tungstate, potassium phytate, a corrosion inhibitor and deionized water are uniformly mixed to prepare passivation solution.
The electric arc is in variable polarity argon tungsten-arc welding.
Example 4
A thermal pressure welding method for building aluminum materials comprises the following steps:
step S1, aluminum material surface treatment: processing the surface to be welded of the aluminum material into a shape larger than the area of the end surface vertical to the axis of the aluminum material, then placing the aluminum material in a cleaning solution, ultrasonically cleaning for 5min, then placing the aluminum material in an argon atmosphere, preheating the cleaned aluminum material to 80 ℃, then uniformly brushing the surface to be welded with a passivation solution, standing for 10min after brushing is finished, then brushing a zinc nitrate solution with the mass fraction of 10%, standing for 5min, and finally brushing the passivation solution again to prepare the treated aluminum material;
s2, performing reciprocating heating on the surface to be welded of the aluminum material through electric arc until the aluminum material of the surface to be welded is in a plastic state, then removing an oxidation film by using cathode atomization, introducing argon for protection, and removing electric arc heating;
and S3, applying pressure to the surface to be welded of the aluminum material when welding, controlling the pressure to be unchanged until the whole body is cooled to room temperature, then stopping introducing argon, removing the pressure and finishing welding.
The cleaning solution comprises the following raw materials in parts by weight: 12 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 3 parts of OP-10,5 parts of triethanolamine, 5 parts of sodium hydroxide and 95 parts of deionized water.
The cleaning solution comprises the following steps: and uniformly mixing the sodium alcohol ether sulphate, OP-10, triethanolamine, sodium hydroxide and deionized water to prepare the cleaning solution.
The passivation solution comprises the following raw materials in parts by weight: 12 parts of formic acid, 2 parts of hydrofluoric acid, 5 parts of potassium tungstate, 3 parts of potassium phytate, 5 parts of a corrosion inhibitor and 90 parts of deionized water.
The passivation solution is prepared by the following steps: formic acid, hydrofluoric acid, potassium tungstate, potassium phytate, a corrosion inhibitor and deionized water are uniformly mixed to prepare passivation solution.
The electric arc is in the variable polarity tungsten argon arc welding.
In the description of the specification, reference to the description of "one embodiment," "an example," "a specific example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only of the present invention, and it is intended that the present invention cover modifications, additions, or substitutions by those skilled in the art, without departing from the spirit of the invention or exceeding the scope of the claims.
Claims (7)
1. A thermal pressure welding method for building aluminum materials is characterized by comprising the following steps:
step S1, aluminum material surface treatment: processing the surface to be welded of the aluminum material into a shape larger than the area of an end face vertical to the axis of the aluminum material, then placing the aluminum material in a cleaning solution, ultrasonically cleaning for 5min, then placing the aluminum material in an argon atmosphere, preheating the cleaned aluminum material to 75-80 ℃, then uniformly coating with a passivation solution, standing for 5-10min after finishing coating, coating with a promotion solution, standing for 5min, and finally coating with the passivation solution again to prepare the treated aluminum material;
s2, performing reciprocating heating on the surface to be welded of the aluminum material through electric arc until the aluminum material of the surface to be welded is in a plastic state, then removing an oxidation film through cathode atomization, introducing argon for protection, and removing electric arc heating;
and S3, applying pressure to the surface to be welded of the aluminum material when welding, controlling the pressure to be unchanged until the whole body is cooled to room temperature, then stopping introducing argon, removing the pressure and finishing welding.
2. A thermal compression welding method of construction aluminum material as set forth in claim 1, wherein said cleaning solution comprises the following raw materials in parts by weight: 6-12 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 1-3 parts of OP-10,3-5 parts of triethanolamine, 2-5 parts of sodium hydroxide and 90-95 parts of deionized water.
3. A method of thermocompression bonding an aluminum material for construction according to claim 1, wherein the cleaning solution is prepared by the steps of: and uniformly mixing the sodium alcohol ether sulphate, OP-10, triethanolamine, sodium hydroxide and deionized water to prepare the cleaning solution.
4. A thermal pressure welding method for construction aluminum according to claim 1, characterized in that the passivating solution comprises the following raw materials by weight: 5-12 parts of formic acid, 1-2 parts of hydrofluoric acid, 3-5 parts of potassium tungstate, 1-3 parts of potassium phytate, 2-5 parts of corrosion inhibitor and 80-90 parts of deionized water.
5. A method of thermocompression bonding an aluminum material for construction according to claim 1, wherein the passivation solution is prepared by the steps of: formic acid, hydrofluoric acid, potassium tungstate, potassium phytate, a corrosion inhibitor and deionized water are uniformly mixed to prepare passivation solution.
6. A hot press welding method for aluminum material for building according to claim 1, wherein said arc in step S2 is any one of alternating current argon tungsten arc welding and variable polarity argon tungsten arc welding.
7. A method of thermocompression bonding an aluminum building material according to claim 1 wherein the accelerating liquid is any one of a 10% by mass copper nitrate solution, a 10% by mass calcium nitrate solution, and a 10% by mass zinc nitrate solution.
Priority Applications (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143831A (en) * | 2013-03-19 | 2013-06-12 | 哈尔滨工业大学（威海） | Method for hot-pressure welding aluminum-steel dissimilar material |
| CN109317382A (en) * | 2018-11-22 | 2019-02-12 | 安徽安铝铝业有限公司 | Technique for surface treatment of aluminium alloy sections |
| CN111037060A (en) * | 2019-11-29 | 2020-04-21 | 安徽高德铝业有限公司 | Welding process for aluminum product processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143831A (en) * | 2013-03-19 | 2013-06-12 | 哈尔滨工业大学（威海） | Method for hot-pressure welding aluminum-steel dissimilar material |
| CN109317382A (en) * | 2018-11-22 | 2019-02-12 | 安徽安铝铝业有限公司 | Technique for surface treatment of aluminium alloy sections |
| CN111037060A (en) * | 2019-11-29 | 2020-04-21 | 安徽高德铝业有限公司 | Welding process for aluminum product processing |
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