1. The balance ring of a washing machine is usually made of plastic materials such as high - density polyethylene (HDPE) or polypropylene (PP), and is filled with a certain amount of balance liquid inside. Its main function is to offset the centrifugal force generated by uneven clothing distribution during the high - speed operation of the washing machine through the flow of the balance liquid, so as to maintain the stable operation of the washing machine and reduce vibration and noise. Since the balance ring needs to withstand the centrifugal force generated by high - speed rotation and the long - term immersion of the balance liquid, the strength and sealing performance of its welded parts are extremely demanding.

2. In the field of modern washing machine manufacturing, as a key component to ensure the operational stability and reduce noise of the washing machine, the welding quality of the balance ring directly affects the overall performance and service life of the washing machine. The hot plate welding technology, with its unique process advantages, plays an important role in the welding production of the washing machine balance ring, providing a reliable solution for improving product quality and production efficiency.

3. Hot plate welding is a welding technology based on the principle of heat conduction. It transfers heat energy to the surface of the plastic parts to be welded through a heating plate, making the material reach a molten state. Then, under the action of pressure, the two parts are closely fitted together. After cooling and solidifying, a strong welded joint is formed. This welding method has the characteristics of high welding strength, good sealing performance, and beautiful appearance, and is particularly suitable for the welding of plastic products with high requirements for welding quality. The washing machine balance ring exactly meets this application scenario.