The weld and the surrounding areas are heated and cooled to different degrees. The master material is the heat affected zone of the weld, that is, the welding joint of the plastic mold.

The formation of the fusion weld requires local heating and melting to produce a common molten pool at the joint of the workpiece, and then solidification and crystallization to become a whole.

At high temperatures, a part of the coating of the welding rod will decompose into gas, surround the arc space and the molten pool and form a protective layer. The other part enters the molten pool and reacts with the metal to form slag and float on the surface of the weld, forming slag protection.

Plastic mold

The temperature of the welding metallurgical process will be very high, which is easy to cause the evaporation of metal elements. The increased activity of the gas will cause the metal elements to burn and harmful impurities.

The cooling speed is fast and the molten pool volume is small. The molten pool is in a short time and the metal is cold. The chemical reaction in a short time cannot reach a uniform state. The existing gas and impurities do not float out in time, thus forming pores.

In the process of welding, in order to ensure the quality of the weld, effective process measures must be taken to limit the entry of gases that have adverse effects on seam welding, and at the same time, the burned alloy elements need to be supplemented.

Shenye is a mold manufacturer specializing in plastic molds, various plastic shells, injection molding, mold manufacturing, oil spraying and silk screen printing, product development and assembly. Cooperation with Shenye can guarantee the quality of your products to a large extent, and the plastic products produced by Shenye are very delicate and beautiful, and are loved by customers. Shenye sincerely looks forward to cooperating with you!