China Plastic Injection Silicone Overmolding

In order to ensure that the production process of plastic overmolding products meets the quality and accuracy requirements, while reducing plastic production costs and improving injection production efficiency, the use of overmolding can be said to be a important operation. This process is critical and requires indispensable tools. Overmolding directly affects plastic product quality and production efficiency. In order to ensure the reliability of the molding accuracy, the overmolding production process needs to follow specific requirements.

Overmolding Material selection

In the process of making injection overmolding, material selection is crucial. This material should have sufficient hardness and wear resistance to ensure a long service life. Commonly used mold materials include high-quality P20, 718, NAK80, S316H, and so on. The material of the mold should have good processing performance to facilitate the manufacturing process of cutting, polishing, and other process operations. In addition, for some special injection molding, such as silicone overmolding products, material selection should consider its high-temperature resistance.

Overmolding Design Requirements

Overmolding design is the core of the plastic silicone production process. Good design ensures that the molding has good, stable production efficiency. In the design process, according to the shape and size of the product, determine the type of overmolding structure, such as single or multi-mold cavity. At the same time, the mold structure should be as simple as possible to reduce manufacturing costs. The mold design needs to consider the reasonable hot or cold runner system to improve the molding effect and reduce the production cycle.

Overmlding processing

Plastic injection overmolding production needs to go through a series of processing technologies, including CNC machining, EDM, polishing, and so on. In the machining process, you need to operate in strict accordance with the design requirements to ensure the mold's precision and surface quality. Conduct CNC machining using high-precision machine tools for parts processing to ensure the geometric dimensional accuracy of the mold. For some complex shapes, it is necessary to use EDM for fine processing. Through polishing and other surface treatment processes, improve the surface finish and wear resistance of the mold.

Injection Overmolding Quality Control

In the injection overmolding production process, quality control is the key link to ensure the quality of the molding. It is necessary to clarify the requirements of each process and operating procedures. Secondly, for the overmolding processing, it is necessary to carry out testing and measurement, including size inspection and hardness testing. At the same time, it is necessary to carry out mold assembly and debugging to ensure that the mold, when in use, has stable performance and accurate size. Finally, after the completion of the mold, it is necessary to conduct a full interview and finished product inspection to verify the molding effect and product quality.

Custom overmolding production requirements are crucial to ensure the quality and production efficiency of the mold, with long-term reliable use advantages. During the production process, attention is paid to the details of each link, and adjustments are made to improve the mold in conjunction with the developer's actual situation, to meet the production and manufacturing needs of products in the electronics, household, and industrial industries