CN114289813A - Welding method of aluminum strip - Google Patents
Welding method of aluminum strip Download PDFInfo
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- CN114289813A CN114289813A CN202111655495.8A CN202111655495A CN114289813A CN 114289813 A CN114289813 A CN 114289813A CN 202111655495 A CN202111655495 A CN 202111655495A CN 114289813 A CN114289813 A CN 114289813A
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- 238000003466 welding Methods 0.000 title claims abstract description 359
- 238000000034 method Methods 0.000 title claims abstract description 41
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000007797 corrosion Effects 0.000 claims abstract description 23
- 238000005260 corrosion Methods 0.000 claims abstract description 23
- 239000003112 inhibitor Substances 0.000 claims abstract description 23
- 238000005496 tempering Methods 0.000 claims abstract description 14
- 238000005219 brazing Methods 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000004806 packaging method and process Methods 0.000 claims abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 6
- WEUCVIBPSSMHJG-UHFFFAOYSA-N calcium titanate Chemical compound [O-2].[O-2].[O-2].[Ca+2].[Ti+4] WEUCVIBPSSMHJG-UHFFFAOYSA-N 0.000 claims description 5
- 229920002678 cellulose Polymers 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 5
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 claims description 5
- 229910000734 martensite Inorganic materials 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 26
- 230000006872 improvement Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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Abstract
The invention relates to the technical field of welding, in particular to a welding method of an aluminum strip, which comprises the following steps of S1: firstly, slotting a butt welding point, and carrying out ash removal work on the position of the slotting; s2: locally heating the welding point position of the welding piece; s3: attaching a welding material to a welding point, and welding by adopting a brazing mode through gas shielded welding; s4: heating the workpiece in a heating furnace, standing for a period of time, and tempering the workpiece; s5: coating corrosion inhibitor, drying and packaging for storage. According to the invention, in the welding process of the aluminum strip, before welding, the arc-shaped groove is formed on the butt welding point, the stability of the arrangement of welding materials is ensured, the generation range of welding lines is reduced, the toughness of the welding lines is improved through the selection of the welding materials, the stress generated by welding is eliminated through the tempering of the heating furnace, and the copper corrosion inhibitor is coated at last, so that the situation of rusting and fracture of the welding point can be avoided in the future use process.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a welding method of an aluminum strip.
Background
The welding is a connection mode which can connect two groups of unconnected parts with each other by heating, pressurizing or matching the two parts and ensure stability, in the welding process, materials with small data difference with the hardness, toughness and the like of a weldment can be selected as welding materials, the current welding development is wide, and the welding materials comprise manual arc welding, submerged arc welding, argon tungsten-arc welding, gas metal arc welding and the like, but the current welding materials have influence on the one-time success rate of welding due to the cleanliness of the surface of the weldment and the selection of the welding materials, and after the welding is finished, only a single heat treatment mode is adopted, cracks still exist after cooling, and improvement is needed.
Chinese patent No. CN101983821A discloses a welding method of GS30CrMoV6 and Q345E dissimilar steels, the welding method realizes the reliable welding of two dissimilar materials of low-alloy structural steel Q345E and medium carbon quenched and tempered steel GS30CrMoV6, the welding method is used for welding track links and track plates in a movable type dumping plough track walking mechanism, the welding quality is reliable, the internal stress is small, the use is safe, but after the processing is finished, the heat treatment step of a welding point is not perfect, and improvement is needed.
Chinese patent No. CN103212938B discloses a method for repairing a track shoe of a large machine, which comprises the steps of 1, manufacturing a copying track shoe tooth body; step 2, removing original track shoe teeth on the track shoe; step 3, spot welding the copying track plate teeth on the track plate by using a welding method of carbon dioxide arc welding, wherein the positions of the copying track plate teeth are the same as the positions of the original track plate teeth; preheating the profiling track shoe teeth and the track shoe before welding, wherein the preheating temperature is at least 200 ℃; step 5, symmetrically dividing a welding area into four areas, and fully welding the profiling track shoe teeth and the track shoe by adopting a symmetrical welding mode and a welding method of carbon dioxide arc welding, wherein the welding mode has the defects of incomplete partition of a butt-welded part, overlarge preheating range and overhigh loss in the preheating work, and needs to be improved
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for welding an aluminum strip.
In order to achieve the purpose, the invention adopts the following technical scheme: the welding method of the aluminum strip comprises the following steps:
s1: firstly, dividing a crawler belt into a plurality of groups of welding points which are equally divided according to the length and the implementation range of a welding piece, slotting the welding points, and performing ash removal work on the slotting position;
s2: locally heating the welding point position of the welding piece, and preparing a welding material;
s3: jointing a welding material with a welding point, welding by adopting a brazing mode through gas shielded welding, welding by adopting a low-current slow welding mode when the welding material is molten to a certain degree, welding the outer layer of the welding point again, and welding the inner side for a certain distance when the gas shielded welding is quenched;
s4: pushing the weldment into a heating furnace after welding, starting the heating furnace to heat, standing for a period of time, tempering the weldment, and waiting for the heating furnace to cool;
s5: cleaning the welding position of the weldment, coating a corrosion inhibitor, drying, and then packaging and storing.
In order to ensure the one-time success rate of welding, the invention improves that in the S1, the welding points are divided into 6-24 groups, and the groove is in a U-shaped groove shape.
In order to ensure the toughness coefficient of the welding position, the invention improves that in S2, the temperature for locally heating the welding position is 150-250 ℃, and the welding material adopts a titanium oxide calcium type welding rod, an ilmenite type welding rod or a cellulose type welding rod.
In order to ensure the temperature degree of welding, the invention improves that in the S3, a welding method of discontinuous and distributed circulation is adopted during the brazing welding.
In order to ensure the accuracy of welding, the invention improves that in the step S3, the gas shielded welding is carbon dioxide gas shielded welding, and the melting degree of the welding material is 25% -35%.
In order to ensure the temperature coefficient in the welding process, the improvement of the invention is that in the S3, the whole operation time is required to ensure that the temperature between the tracks is always higher than the martensite transformation temperature.
In order to prevent the occurrence of cracks at the end of the welding seam, the invention improves that the distance of welding the inner side is 2-4mm when the gas shielded welding is quenched in S3.
In order to slow down the cooling speed and increase the plasticity and toughness, the invention improves that in the S4, the heating temperature of the heating furnace is 200-400 ℃, and the waiting time of standing is 2-6 hours.
In order to eliminate the stress after the welding is finished, the invention improves that in the S4, the tempering temperature of the heating furnace is 600-700 ℃, and the time for waiting for the cooling of the heating furnace is 1-2 hours.
In order to realize the function of protecting the coating on the surface of the welding point by the corrosion inhibitor, the invention has the improvement that in S5, the corrosion inhibitor adopts a copper corrosion inhibitor BTA.
Compared with the prior art, the invention has the advantages and positive effects that:
in the invention, in the welding process of the aluminum strip, before welding work, the arc-shaped groove is formed on the butt welding point, the stability of the arrangement of welding materials is ensured, the generation range of welding lines is reduced, the dust of the welding points is cleaned, the success rate of single welding is ensured, the stability of the joint of a welding finished product when stressed is improved by dividing the welding points, the toughness of the welding lines is improved by selecting the welding materials, the welding stability is improved, after welding is finished, the stress generated by welding is eliminated by tempering in a heating furnace, and finally, a copper corrosion inhibitor is coated to form a protective coating on the surface of the welding points, so that the situation that the welding points are rusted and broken in the use process in the future is ensured, and the overall performance of welding is further improved.
Drawings
FIG. 1 is a schematic flow chart of a method for welding an aluminum strip according to the present invention;
fig. 2 is a schematic diagram of detection data of the welding method of the aluminum strip according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example one
Referring to fig. 1-2, the present invention provides a technical solution: the welding method of the aluminum strip comprises the following steps:
s1: firstly, dividing a crawler belt into a plurality of groups of welding points which are equally divided according to the length and the implementation range of a welding piece, slotting the welding points, and performing ash removal work on the slotting position;
s2: locally heating the welding point position of the welding piece, and preparing a welding material;
s3: jointing a welding material with a welding point, welding by adopting a brazing mode through gas shielded welding, welding by adopting a low-current slow welding mode when the welding material is molten to a certain degree, welding the outer layer of the welding point again, and welding the inner side for a certain distance when the gas shielded welding is quenched;
s4: pushing the weldment into a heating furnace after welding, starting the heating furnace to heat, standing for a period of time, tempering the weldment, and waiting for the heating furnace to cool;
s5: cleaning the welding position of the weldment, coating a corrosion inhibitor, drying, and then packaging and storing.
In the inspection work of a weldment, by means of dividing 18 groups of welding points, the condition that the bearing capacity of partial positions is insufficient due to uneven welding points when the welding positions are stressed is ensured under the condition of adapting to tracks of different models and styles, the stress bearing uniformity of the welding points is avoided, the grooves are U-shaped grooves, the U-shaped grooves are formed, the purpose of forming the U-shaped grooves is firstly to provide space for placing welding materials and ensure the flatness and the attractiveness of the welding positions, the tensile strength and the bearing capacity of the welding positions can be effectively improved through the U-shaped arc mouth shape, the strength of the welding positions is further improved, the temperature of local heating of the welding positions is 200 ℃, when the welding positions are preheated to the temperature, the welding points can be ensured to adapt to the next welding work, and the condition that the welding positions are burnt or damaged due to large temperature difference is avoided, the welding material adopts a titanium oxide calcium type welding rod, an ilmenite type welding rod or a cellulose type welding rod, the basic oxide component in the coatings of the selected welding rods is high, and the toughness of the welding seam can be effectively improved by welding through the material.
The welding method of discontinuous and distributed circulation is adopted during the brazing welding, and the welding mode can ensure the stability of the welding position by means of multiple times of welding, and further improve the success rate of welding work, the gas shielded welding is carbon dioxide gas shielded welding, the protective welding can use carbon dioxide to carry out protective gas, the degree of melting of welding materials is 27 percent for protecting the subsequent welding work, the welding layer at the degree can ensure the welding stability, ensuring the uniform procedure of the welding layer and the whole operation time, ensuring that the temperature between the channels is always higher than the martensite transformation temperature, the temperature can be ensured to ensure that welding seams can not be generated due to temperature difference when welding work is carried out, when gas shielded welding is carried out for arc extinction, the distance to the inner weld was 3mm, and by this way of operation, the occurrence of cracks at the end of the weld could be avoided.
The heating temperature of the heating furnace is 395 ℃, the standing waiting time is 4.5 hours, the heating furnace is heated, the cooling speed can be further slowed down, the plasticity and the toughness are increased, the hardening tendency is reduced, the diffused hydrogen in a welding point is eliminated, the tempering temperature of the heating furnace is 675 ℃, the waiting time for the cooling of the heating furnace is 1.5 hours, the design aims to eliminate stress after the welding is finished, a copper corrosion inhibitor BTA is adopted as the corrosion inhibitor, the copper corrosion inhibitor BTA can be adsorbed on the surface of the welding point to form a thin film, the welding point is protected from being corroded by atmosphere and harmful media, the situation that the welding point is rusted and cracked subsequently is avoided, and long-term guarantee is provided for the welding work.
Example two
Referring to fig. 1-2, a method for welding an aluminum strip includes the following steps:
s1: firstly, dividing a crawler belt into a plurality of groups of welding points which are equally divided according to the length and the implementation range of a welding piece, slotting the welding points, and performing ash removal work on the slotting position;
s2: locally heating the welding point position of the welding piece, and preparing a welding material;
s3: jointing a welding material with a welding point, welding by adopting a brazing mode through gas shielded welding, welding by adopting a low-current slow welding mode when the welding material is molten to a certain degree, welding the outer layer of the welding point again, and welding the inner side for a certain distance when the gas shielded welding is quenched;
s4: pushing the weldment into a heating furnace after welding, starting the heating furnace to heat, standing for a period of time, tempering the weldment, and waiting for the heating furnace to cool;
s5: cleaning the welding position of the weldment, coating a corrosion inhibitor, drying, and then packaging and storing.
In the inspection work of a weldment, 6 groups of welding points are divided, under the condition of adapting to caterpillar bands of different models and styles, when the stress of a welding position is ensured, the uniformity of pressure bearing is avoided, the situation that the stress bearing capacity of partial positions is insufficient due to the uneven welding points is avoided, the groove is shaped like a U-shaped groove, the U-shaped groove is formed, the purpose of providing a space for placing welding materials is firstly achieved, the flatness and the attractiveness of the welding position are ensured, the tensile strength and the bearing capacity of the welding position can be effectively improved through the arc shape of the U-shaped groove, the strength of the welding position is further improved, the temperature of local heating of the welding point position is 150 ℃, when the welding point is preheated to the temperature, the welding point can be ensured to adapt to the next welding work, and the situation that the welding position is burnt or damaged due to large temperature difference is avoided, the welding material adopts a titanium oxide calcium type welding rod, an ilmenite type welding rod or a cellulose type welding rod, the basic oxide component in the coatings of the selected welding rods is high, and the toughness of the welding seam can be effectively improved by welding through the material.
The welding method of discontinuous and distributed circulation is adopted during the brazing welding, and the welding mode can ensure the stability of the welding position by means of multiple times of welding, and further improve the success rate of welding work, the gas shielded welding is carbon dioxide gas shielded welding, the shielded welding can use carbon dioxide to carry out shielding gas, the degree of melting of welding materials is 25 percent for protecting the subsequent welding work, the welding layer at the degree can ensure the welding stability, ensuring the uniform procedure of the welding layer and the whole operation time, ensuring that the temperature between the channels is always higher than the martensite transformation temperature, the temperature can be ensured to ensure that welding seams can not be generated due to temperature difference when welding work is carried out, when gas shielded welding is carried out for arc extinction, the distance to the inner weld was 2mm, and by this way of operation, the occurrence of cracks at the end of the weld could be avoided.
The heating temperature of the heating furnace is 200 ℃, the standing waiting time is 2 hours, the cooling speed can be further slowed down by heating the heating furnace, the plasticity and the toughness are increased, the hardening tendency is reduced, the diffused hydrogen in a welding point is eliminated, the tempering temperature of the heating furnace is 600 ℃, the waiting time for cooling the heating furnace is 1 hour, the design aims to eliminate stress after welding is completed, the corrosion inhibitor adopts a copper corrosion inhibitor BTA, the copper corrosion inhibitor BTA can be adsorbed on the surface of the welding point to form a thin film, the welding point is protected from being corroded by atmosphere and harmful media, the situation that the welding point is rusted and cracked subsequently is avoided, and long-term guarantee is provided for welding work.
EXAMPLE III
Referring to fig. 1-2, a method for welding an aluminum strip includes the following steps:
s1: firstly, dividing a crawler belt into a plurality of groups of welding points which are equally divided according to the length and the implementation range of a welding piece, slotting the welding points, and performing ash removal work on the slotting position;
s2: locally heating the welding point position of the welding piece, and preparing a welding material;
s3: jointing a welding material with a welding point, welding by adopting a brazing mode through gas shielded welding, welding by adopting a low-current slow welding mode when the welding material is molten to a certain degree, welding the outer layer of the welding point again, and welding the inner side for a certain distance when the gas shielded welding is quenched;
s4: pushing the weldment into a heating furnace after welding, starting the heating furnace to heat, standing for a period of time, tempering the weldment, and waiting for the heating furnace to cool;
s5: cleaning the welding position of the weldment, coating a corrosion inhibitor, drying, and then packaging and storing.
In the inspection work of a weldment, by means of dividing 24 groups of welding points, the condition that the bearing capacity of partial positions is insufficient due to uneven welding points when the welding positions are stressed is ensured under the condition of adapting to caterpillar bands of different models and styles, the U-shaped groove is formed, the purpose of forming the U-shaped groove is firstly to provide space for placing welding materials and ensure the flatness and the attractiveness of the welding positions, the tensile strength and the bearing capacity of the welding positions can be effectively improved through the U-shaped arc mouth shape, the strength of the welding positions is further improved, the local heating temperature of the welding positions is 250 ℃, when the welding positions are preheated to the temperature, the welding points can be ensured to adapt to the next welding work, and the condition that the welding positions are burnt or damaged due to large temperature difference is avoided, the welding material adopts a titanium oxide calcium type welding rod, an ilmenite type welding rod or a cellulose type welding rod, the basic oxide component in the coatings of the selected welding rods is high, and the toughness of the welding seam can be effectively improved by welding through the material.
The welding method of discontinuous and distributed circulation is adopted during the brazing welding, and the welding mode can ensure the stability of the welding position by means of multiple times of welding, and further improve the success rate of welding work, the gas shielded welding is carbon dioxide gas shielded welding, the shielded welding can use carbon dioxide to carry out shielding gas, the degree of melting of welding materials is 35 percent for protecting the subsequent welding work, the welding layer at the degree can ensure the welding stability, ensuring the uniform procedure of the welding layer and the whole operation time, ensuring that the temperature between the channels is always higher than the martensite transformation temperature, the temperature can be ensured to ensure that welding seams can not be generated due to temperature difference when welding work is carried out, when gas shielded welding is carried out for arc extinction, the distance to the inner weld was 4mm, and by this way of operation, the occurrence of cracks at the end of the weld could be avoided.
The heating temperature of the heating furnace is 400 ℃, the standing waiting time is 6 hours, the cooling speed can be further slowed down by heating the heating furnace, the plasticity and the toughness are increased, the hardening tendency is reduced, the diffused hydrogen in a welding point is eliminated, the tempering temperature of the heating furnace is 700 ℃, the waiting time for cooling the heating furnace is 2 hours, the design aims to eliminate stress after welding is completed, the corrosion inhibitor adopts a copper corrosion inhibitor BTA, the copper corrosion inhibitor BTA can be adsorbed on the surface of the welding point to form a thin film, the welding point is protected from being corroded by atmosphere and harmful media, the situation that the welding point is rusted and cracked subsequently is avoided, and long-term guarantee is provided for welding work.
The working principle is as follows: firstly, dividing the crawler belt into an equally divided array of welding points according to the length and the implementation range of a welding piece, grooving the welding point, performing ash removal on the grooving position, then locally heating the welding point position of the welding piece, preparing welding materials, then attaching the welding materials to a welding point, welding by adopting a brazing mode through gas shielded welding, when the welding material is melted to a certain degree, the welding is carried out by adopting a low-current and slow welding mode, the outer layer of the butt welding point is welded again, when the arc is extinguished by the gas shielded welding, welding the inner side for a certain distance, pushing the weldment into a heating furnace after welding, starting the heating furnace for heating, and standing for a period of time, tempering the weldment, waiting for cooling of the heating furnace, cleaning the welding position of the weldment after cooling of the heating furnace, coating a corrosion inhibitor, drying, and then packaging and storing.
Although the present invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The welding method of the aluminum strip is characterized by comprising the following steps:
s1: firstly, dividing a crawler belt into a plurality of groups of welding points which are equally divided according to the length and the implementation range of a welding piece, slotting the welding points, and performing ash removal work on the slotting position;
s2: locally heating the welding point position of the welding piece, and preparing a welding material;
s3: jointing a welding material with a welding point, welding by adopting a brazing mode through gas shielded welding, welding by adopting a low-current slow welding mode when the welding material is molten to a certain degree, welding the outer layer of the welding point again, and welding the inner side for a certain distance when the gas shielded welding is quenched;
s4: pushing the weldment into a heating furnace after welding, starting the heating furnace to heat, standing for a period of time, tempering the weldment, and waiting for the heating furnace to cool;
s5: cleaning the welding position of the weldment, coating a corrosion inhibitor, drying, and then packaging and storing.
2. The method of welding aluminum strips of claim 1, wherein: in the step S1, the welding points are divided into 6-24 groups, and the groove is in a U-shaped groove shape.
3. The method of welding aluminum strips of claim 1, wherein: in the S2, the temperature for locally heating the welding point position is 150-250 ℃, and the welding material adopts a titanium oxide calcium type welding rod, an ilmenite type welding rod or a cellulose type welding rod.
4. The method of welding aluminum strips of claim 1, wherein: in the step S3, a discontinuous, distributed and cyclic welding method is used for brazing.
5. The method of welding aluminum strips of claim 1, wherein: in the S3, the gas shielded welding is carbon dioxide shielded welding, and the melting degree of the welding material is 25-35%.
6. The method of welding aluminum strips of claim 5, wherein: in S3, the overall operation time is required to ensure that the inter-track temperature is always higher than the martensite transformation temperature.
7. The method of welding aluminum strips of claim 1, wherein: and when the gas shielded arc welding is quenched in the S3, the distance for welding the inner side is 2-4 mm.
8. The method of welding aluminum strips of claim 1, wherein: in the S4, the heating temperature of the heating furnace is 200-400 ℃, and the waiting time of standing is 2-6 hours.
9. The method of welding aluminum strips of claim 1, wherein: in the step S4, the tempering temperature of the heating furnace is 600-700 ℃, and the time for waiting for cooling the heating furnace is 1-2 hours.
10. The method of welding aluminum strips of claim 1, wherein: in the step S5, the corrosion inhibitor is copper corrosion inhibitor BTA.
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| CH246051A (en) * | 1945-07-04 | 1946-12-15 | Bbc Brown Boveri & Cie | Inert gas soldering process. |
| CN1911583A (en) * | 2006-08-23 | 2007-02-14 | 四川东风电机厂有限公司 | Repairing welding method for crack of rotor support power generator |
| CN103212938A (en) * | 2013-04-28 | 2013-07-24 | 上海宝冶集团有限公司 | Method of repairing creeper tread of large machinery |
| CN104400180A (en) * | 2014-10-27 | 2015-03-11 | 中核苏阀横店机械有限公司 | Repair welding process of high alloy steel track shoe |
| CN106735972A (en) * | 2017-03-25 | 2017-05-31 | 兰州理工大学 | A kind of restorative procedure of mining gipsy sheave |
| CN108098171A (en) * | 2017-11-27 | 2018-06-01 | 江苏振光电力设备制造有限公司 | A kind of efficient welding method |
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