CN115647531A - Aluminum profile welding method for new energy automobile - Google Patents
Aluminum profile welding method for new energy automobile Download PDFInfo
- Publication number
- CN115647531A CN115647531A CN202211528324.3A CN202211528324A CN115647531A CN 115647531 A CN115647531 A CN 115647531A CN 202211528324 A CN202211528324 A CN 202211528324A CN 115647531 A CN115647531 A CN 115647531A
- Authority
- CN
- China
- Prior art keywords
- welding
- aluminum
- preparing
- alloy
- nano
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Arc Welding In General (AREA)
Abstract
The invention relates to a method for welding an aluminum profile for a new energy automobile, which is characterized by comprising the following steps of: the specific welding method is as follows: s1: preparing an aluminum alloy welding wire; s2: preparing a base material; s3: polishing the to-be-welded part; s4: removing an oxide film on the surface of the aluminum material; s5: preheating before welding; s6: welding by argon arc welding; s7: air cooling; in the process of ultrasonic evaporation, the nano reinforcing particles can be uniformly dispersed and distributed in the aluminum matrix alloy, so that the composite powder with the nano particles uniformly dispersed and distributed in the aluminum matrix alloy can be obtained, and the welding wire prepared by the composite powder prepared by the preparation method in the subsequent preparation method has enough strength; through using the stainless steel wire to rub the brush to the face of weld of aluminum product, reuse chemical method carries out secondary treatment to the aluminum product after rubbing the brush, can effectively clear away the oxide film of face of weld, and intensity when guaranteeing the welding is favorable to the welding, and the aluminium alloy after the clearance can keep dry in placing the thermostated container, slows down the aluminium alloy and treats face of weld secondary oxidation speed.
Description
Technical Field
The invention relates to the technical field of aluminum profiles for new energy automobiles, in particular to a welding method of an aluminum profile for a new energy automobile.
Background
The aluminum alloy has high specific strength, high fatigue strength, good fracture toughness, lower crack propagation rate, excellent forming manufacturability and good corrosion resistance, and is widely applied in the aviation, aerospace, automobile, mechanical manufacturing, ship and chemical industries, the wide application of the aluminum alloy promotes the development of an aluminum alloy welding technology, and the development of the welding technology expands the application field of the aluminum alloy.
Disclosure of Invention
The invention aims to provide a method for welding an aluminum profile for a new energy automobile, which can solve the problem that an oxide film influences the welding strength when the aluminum profile for the new energy automobile is welded.
In order to solve the technical problems, the technical scheme of the invention is as follows: the aluminum profile welding method for the new energy automobile has the innovation points that: the specific welding method is as follows:
s1: preparing an aluminum alloy welding wire: evaporating the mixed solution containing aluminum matrix powder and nano reinforced particles under an ultrasonic state to prepare composite powder; pressing the composite powder into a briquette; carrying out vacuum hot pressing on the pressing block to prepare an aluminum alloy reinforcement billet; wherein the aluminum matrix alloy of the aluminum matrix powder comprises Cu, mg, si, mn, ti and aluminum, wherein the weight percentages of the aluminum matrix powder and the nano-reinforcing particles satisfy: 5.0-7.0% of Cu, 1.5-3.5% of Mg, 0.2-0.5% of Si, 0.2-0.9% of Mn, 0.1-0.3% of Ti, 0.1-5.0% of nano reinforced particles and the balance of aluminum; the nano reinforced particles are nano CeO 2 Particles; the aluminum matrix powder is an aluminum matrix powder treated by radio frequency plasma; the temperature of the vacuum hot pressing is 280-320 ℃;
s2: preparing a base material: preparing two aluminum profiles with the diameter of fifteen to thirty millimeters, and adding silicon materials into the aluminum profiles during production;
s3: polishing the part to be welded, and brushing the surface to be polished of the aluminum profile by using a stainless steel wire until the aluminum profile has metallic luster;
s4: removing an oxide film on the surface of the aluminum material, and treating the surface of the aluminum material by a chemical method to remove the oxide film on the surface;
s5: preheating before welding, namely preheating at the welding position of the aluminum material by using an air heater;
s6: argon arc welding is carried out, wherein the argon arc welding adopts tungsten electrode materials, 1.6 to 2.3 percent of cerium oxide is added into pure tungsten, and a hot air gun is used for blowing air to a welding surface during welding;
s7: and air cooling, wherein after welding is finished, the welding position is air cooled by using a fan.
Further, the grinding brushes in the S3 are crossed, and the width of the grinding brushes is one to two centimeters.
Further, in the step S3, acetone is used for wiping the welding surface, the wiping time is 3-5 minutes, 5% -10% of sodium hydroxide solution is used for alkali washing for 4-8 minutes, the temperature of the sodium hydroxide is 40-70 ℃, then the washing is carried out by flowing clear water, then nitric acid solution with the concentration of 25% -35% is used for acid washing for 2-5 minutes, the washing is carried out by flowing clear water, air drying or low-temperature drying is carried out, the cleaned aluminum profile is placed in a constant temperature box for storage, and the temperature is controlled at 50-80 ℃.
The invention has the advantages that:
1) In the process of ultrasonic evaporation, the nano reinforcing particles can be uniformly dispersed and distributed in the aluminum matrix alloy, so that the composite powder with the nano particles uniformly dispersed and distributed in the aluminum matrix alloy can be obtained, and the welding wire prepared by the composite powder prepared by the preparation method in the subsequent preparation method has enough strength; use the stainless steel wire to rub the brush through the face of weld to the aluminum product, reuse chemical method carries out secondary treatment to the aluminum product after rubbing the brush, can effectively clear away the oxide film of face of weld, intensity when guaranteeing the welding is favorable to the welding, and the aluminium alloy after the clearance can keep dry in placing the thermostated container, slows down the aluminium alloy and treats face of weld secondary oxidation speed.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a process flow chart of the aluminum profile welding method for the new energy automobile.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
The aluminum profile welding method for the new energy automobile shown in the figure 1 comprises the following specific welding methods:
s1: preparing an aluminum alloy welding wire: evaporating the mixed solution containing the aluminum matrix powder and the nano reinforced particles under an ultrasonic state to prepare composite powder; pressing the composite powder into a briquette; carrying out vacuum hot pressing on the pressing block to prepare an aluminum alloy reinforcement billet; wherein the aluminum matrix alloy of the aluminum matrix powder comprises Cu, mg, si, mn, ti and aluminum, wherein the weight percentages of the aluminum matrix powder and the nano-reinforcing particles satisfy: 5.0-7.0% of Cu, 1.5-3.5% of Mg, 0.2-0.5% of Si, 0.2-0.9% of Mn, 0.1-0.3% of Ti, 0.1-5.0% of nano reinforced particles and the balance of aluminum; the nano reinforced particles are nano CeO 2 A particle; the aluminum matrix powder is an aluminum matrix powder treated by radio frequency plasma; the temperature of vacuum hot pressing is 280-320 ℃;
s2: preparing a base material: preparing two aluminum profiles with the diameter of fifteen to thirty millimeters, and adding silicon materials into the aluminum profiles during production;
s3: polishing the part to be welded, and brushing the surface to be polished of the aluminum profile by using a stainless steel wire until the aluminum profile has metallic luster;
s4: removing an oxide film on the surface of the aluminum material, and treating the surface of the aluminum material by a chemical method to remove the oxide film on the surface;
s5: preheating before welding, namely preheating at the welding position of the aluminum material by using an air heater;
s6: argon arc welding is carried out, wherein the argon arc welding adopts tungsten electrode materials, 1.6 to 2.3 percent of cerium oxide is added into pure tungsten, and a hot air gun is used for blowing air to a welding surface during welding;
s7: and air cooling, wherein after welding is finished, the welding position is air cooled by using a fan.
In S3, the rubbing brushes are crossed and the width of the rubbing brushes is one to two centimeters.
And S3, wiping the welding surface by using acetone for 3 to 5 minutes, carrying out alkali washing for 4 to 8 minutes by using a sodium hydroxide solution with the concentration of 5 to 10 percent, washing the sodium hydroxide with flowing clear water at the temperature of 40 to 70 ℃, carrying out acid washing for 2 to 5 minutes by using a nitric acid solution with the concentration of 25 to 35 percent, washing with flowing clear water, and carrying out air drying or low-temperature drying, wherein the cleaned aluminum profile is stored in a constant temperature box, and the temperature is controlled at 50 to 80 ℃.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The aluminum profile welding method for the new energy automobile is characterized by comprising the following steps: the specific welding method is as follows:
s1: preparing an aluminum alloy welding wire: evaporating the mixed solution containing aluminum matrix powder and nano reinforced particles under an ultrasonic state,preparing composite powder; pressing the composite powder into a briquette; carrying out vacuum hot pressing on the pressing block to prepare an aluminum alloy reinforcement billet; wherein the aluminum matrix alloy of the aluminum matrix powder comprises Cu, mg, si, mn, ti and aluminum, wherein the weight percentages of the aluminum matrix powder and the nano-reinforcing particles satisfy: 5.0-7.0% of Cu, 1.5-3.5% of Mg, 0.2-0.5% of Si, 0.2-0.9% of Mn, 0.1-0.3% of Ti, 0.1-5.0% of nano reinforced particles and the balance of aluminum; the nano reinforced particles are nano CeO 2 Particles; the aluminum matrix powder is an aluminum matrix powder treated by radio frequency plasma; the temperature of the vacuum hot pressing is 280-320 ℃;
s2: preparing a base material: preparing two aluminum profiles with the diameter of fifteen to thirty millimeters, and adding silicon materials into the aluminum profiles during production;
s3: polishing the part to be welded, and brushing the surface to be polished of the aluminum profile by using a stainless steel wire until the aluminum profile has metallic luster;
s4: removing an oxide film on the surface of the aluminum material, and treating the surface of the aluminum material by a chemical method to remove the oxide film on the surface;
s5: preheating before welding, namely preheating at the welding position of the aluminum material by using an air heater;
s6: argon arc welding is carried out, wherein the argon arc welding adopts tungsten electrode materials, 1.6 to 2.3 percent of cerium oxide is added into pure tungsten, and a hot air gun is used for blowing air to a welding surface during welding;
s7: and air cooling, wherein after welding is finished, the welding position is air cooled by using a fan.
2. The aluminum profile welding method for the new energy automobile according to claim 1, characterized in that: and in the S3, the rubbing brushes are crossed, and the width of each rubbing brush is one to two centimeters.
3. The aluminum profile welding method for the new energy automobile according to claim 1, characterized in that: and in the S3, the welding surface is wiped by using acetone, the wiping time is 3-5 minutes, the welding surface is alkali-washed by using a sodium hydroxide solution with the concentration of 5-10% for 4-8 minutes, the temperature of the sodium hydroxide is 40-70 ℃, then the welding surface is washed by using flowing clear water, then the welding surface is acid-washed by using a nitric acid solution with the concentration of 25-35% for 2-5 minutes, the welding surface is washed by using flowing clear water, and air-dried or low-temperature dried, the cleaned aluminum profile is stored in a constant temperature box, and the temperature is controlled at 50-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211528324.3A CN115647531A (en) | 2022-12-01 | 2022-12-01 | Aluminum profile welding method for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211528324.3A CN115647531A (en) | 2022-12-01 | 2022-12-01 | Aluminum profile welding method for new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115647531A true CN115647531A (en) | 2023-01-31 |
Family
ID=85019133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211528324.3A Pending CN115647531A (en) | 2022-12-01 | 2022-12-01 | Aluminum profile welding method for new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115647531A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116618887A (en) * | 2023-07-13 | 2023-08-22 | 江苏大学 | In-situ nanoparticle reinforced aluminum-based welding wire, and preparation method and welding method thereof |
-
2022
- 2022-12-01 CN CN202211528324.3A patent/CN115647531A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116618887A (en) * | 2023-07-13 | 2023-08-22 | 江苏大学 | In-situ nanoparticle reinforced aluminum-based welding wire, and preparation method and welding method thereof |
| CN116618887B (en) * | 2023-07-13 | 2024-02-13 | 江苏大学 | In-situ nanoparticle reinforced aluminum-based welding wire, and preparation method and welding method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109591210B (en) | Diamond wire saw and preparation method thereof | |
| CN115647531A (en) | Aluminum profile welding method for new energy automobile | |
| CN106756165B (en) | A kind of preparation method of high structural integrity high dispersive graphene/metallic composite | |
| US2334699A (en) | Electrolyte for the polishing of metal surfaces and method of use | |
| CN102936724A (en) | Method for reinforcing nickel-base alloy layer on aluminum alloy surface | |
| CN108823448B (en) | Nano SiC reinforced aluminum matrix composite material and preparation method thereof | |
| CN104128713B (en) | The preparation method of Al-Si-Cu-Zn-Ti five yuan of foil-shaped brazing materials of high-volume fractional SiCp/Al composite | |
| JP2017510530A (en) | Method for producing single crystal diamond abrasive grains | |
| CN103128129A (en) | Short-flow preparation method of Ni-Cr-Mo corrosion-resistant alloy tube | |
| JPS62288634A (en) | Production of steel wire and steel cord for reinforcement of rubber article | |
| CN111037060A (en) | Welding process for aluminum product processing | |
| CN110029344B (en) | Method for strengthening 7075 aluminum alloy surface by laser melt injection | |
| CN105506705A (en) | Preparing method of aluminum alloy hard anode oxide film | |
| CN110714219A (en) | Method for electroplating nickel on magnesium alloy micro-arc oxidation surface | |
| CN113373453A (en) | Cleaning method used before coating of hard alloy numerical control blade | |
| CN110846654A (en) | Surface treatment method of magnesium alloy hub | |
| CN106400010A (en) | Metal surface mechanically-assisted electric heat alloying preparation method | |
| CN112730003B (en) | Metallographic corrosion method for delta-ferrite in 2Cr13 martensitic stainless steel continuous casting billet | |
| CN106769354B (en) | Polishing method for aluminium alloy metallographic specimen | |
| CN113716560A (en) | Method for etching surface of artificial diamond | |
| CN108866597A (en) | A kind of highlighted process of surface treatment of aluminium alloy | |
| CN113308745A (en) | Preparation method of perforated diamond | |
| JP2009248763A (en) | Manufacturing method of aluminum wheel, and aluminum wheel | |
| CN106198161A (en) | A kind of metallographic sample chemical polishing soln and using method thereof | |
| CN112589251A (en) | Non-vacuum diffusion welding method for aluminum alloy and dissimilar metal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |