Qingdao is one of the important economic cities in China, and the welding of aluminum tubes in freezers is a common technology. Aluminum tubes are widely used in the manufacture of freezers because of their excellent corrosion resistance, good thermal conductivity and low cost. The welding method of aluminum tube of Qingdao freezer is introduced below.

1. Preparation of welding equipment and related materials

First of all, necessary equipment and materials such as welding machine, aluminum pipe cutting machine, hand planer, grinder, oxygen bottle, acetylene bottle and aluminum welding wire should be prepared to ensure that they are in good working condition.

Prepare for work

Before welding, it is necessary to cut the aluminum pipe to be welded to make it flat, vertical and clean. V-shaped pits are ground on the aluminum pipe, and pre-cleaning and grinding are carried out.

3. Welding operation

Put the aluminum welding wire on the aluminum tube, ignite the acetylene and oxygen cylinder at the same time, and gradually connect them to produce a proper flame. Slowly move the welding along the seam of the aluminum pipe to fuse the aluminum welding wire with the aluminum pipe, and move the welding for about 1.5cm at a time until the whole welding process is completely completed.

4. Follow up

After welding is completed, it should be cooled. At the same time, the welding place should be polished to ensure that it is firm and beautiful and will not affect the work of the freezer.

To sum up, the welding method of aluminum tube in Qingdao freezer needs careful aluminum tube preparation, skilled welding operation and subsequent details. As long as this technology is fully mastered and applied, it can ensure the firmness, corrosion resistance and aesthetics of aluminum pipe welding, and also provide guarantee for the manufacture of freezer.