When straightening aluminum and aluminum alloy pipes, fill the pipe with sand, and gently knock with a wood hammer or square rule. When straightening the aluminum pipe, the platform should be lined with a hard board. It is not allowed for the aluminum and aluminum alloy pipe to directly contact with the steel plane or the platform for coagulation, so as to avoid the surface of the pipe to scratch or cause scratches. After straightening the pipe, clean up the debris inside.
After the introduction of aluminum alloy materials into China, although relatively new, it will take a long time to promote the market, so more direct users can appreciate the style and charm of this material, which is what we call "multi-function" - module concept "and" arbitrary replacement content ".
Through the continuous use of sales examples and marketing services, the wide use of aluminum alloy materials has reached the current situation. It can be said that without their efforts, aluminum alloy would still be a blank, which shortens the gap between Chinese and international labeling technology and makes a great contribution to the rapid development.
When connecting aluminum and aluminum alloy pipelines by welding, manual gas welding or manual argon arc welding is usually adopted. Before welding, apply acetone or carbon tetrachloride solvent to remove oil stains attached to the pipe end and welding joint, and then remove the oxide film carefully with a fine copper wire brush in the area 30-60mm away from the groove. The welding should start within 2h after cleaning to avoid reoxidation of the pipe mouth. In the process of pipe welding, the workpiece is strictly prohibited from vibration. When the pipe needs to be rotated in the welding process, it shall wait for the weld metal to cool down to below 350C before it is allowed to rotate gently.
Galvanized pipe inner wall with galvanized layer, use for a period of time, the surface will have oxide and a variety of dirt. Plastic pipe by temperature change and the length of time, easy deformation, aging, leakage phenomenon. Copper pipe, stainless steel pipe, high cost, expensive, heavy, transportation, installation to spend a lot of manpower and material resources.
