Precautions for Welding of Aluminum Profiles and Identification of Aluminum Products-WJW Aluminum Supplier Aluminum
Author： WJW Aluminum Window Manufacturers
Precautions for welding of aluminum profile.
1. Welding characteristics: Aluminum and aluminum alloys have the characteristics of strong heat conduction and large thermal capacity, large line swelling coefficients, low melting points and small high temperature intensity. Welding is difficult, and certain measures should be taken in order to ensure the welding quality.
2. Clean the pipes and welded wires. The surface of the welding wire and the east side of the welding wire and the 破 is cleaned with acetone within 50mm. The surface oxidation film is removed with stainless steel wire to expose the metallic luster. The good welding wire is put in the unused cylinder and must be used up within 8 hours, otherwise it will be re -processed.
3, tungsten rods are selected for aluminum tungsten rods. The dullness of the pupa is not less than 99.96%, and the moisture content should not be greater than 50mg/m3.
4. The ambient temperature is not less than 5 C, otherwise it should be preheated to 100 200 C before welding, and the relative humidity control should be controlled.
If you want to welded aluminum at home or workshop, first of all, we need to clarify some of the following things that have been misunderstood by the public: 1. You need at least a welding machine worth $ 4,000 and superb welding techniques to welded aluminum, 2, no, no, no You need to practice to complete welding operations with good effects, 3. You need to buy expensive welding split -welded and aluminum materials suitable for aluminum welding.
The fact is that under the training, using suitable welding equipment to perform correct parameter settings, compact small Mig welding machines can also perform temporary aluminum welding operations.
The following methods can identify the quality of aluminum products:.
1. Look at the surface: The surface of high -quality aluminum products is smooth, shiny, has the unique luster of aluminum alloy, the overall color is consistent, no pores, no gray slag, etc. It shows that the aluminum products are fake and shoddy.
2. Look at the bottom: Place the aluminum products on the plane and press the bottom of the aluminum product with your fingers to observe the deformed status. If the deformation is severe, it means that the bottom aluminum is thin and the quality is not good. The high -quality aluminum products generally help the thin bottom. thick.
3. Look at the structure: The edges of high -quality aluminum products are smooth, without burrs, and the connection of each part is very tight. The rivet is firm and not loose. All accessories are intact, otherwise inferior products are inferior.
4. Look at the miscellaneous spots: There are no miscellaneous or white spots on the surface of the aluminum product with excellent quality. If there is a mixed spot or white spots, it means that the aluminum materials contain iron, zinc, copper and other impurities, or caused by salt erosion. This type of products are inferior, aluminum.
