The production technology and injection molding technology of thick-wall optical mold are as follows:
The production technology of thick-wall optical mold mainly includes the following steps:
(1) Design and manufacture: First, design the mold according to the optical requirements and injection molding process requirements. Then make molds, mainly including CNC machining, electrode discharge machining, wire cutting machining, etc.
(2) Heat treatment: After the mold processing is completed, heat treatment is required. Heat treatment can eliminate the stress inside the mold, improve the hardness of the mold, and enhance the wear resistance and life of the mold.
(3) Polishing: After heat treatment, polishing is required to meet optical requirements. The polishing process mainly includes mechanical polishing and chemical polishing.
(4) Coating: In order to protect the surface of the mold and prolong the service life of the mold, surface coating is also required. Commonly used coating materials are cemented carbide, TiN, TiAlN, etc.
Thick wall optical injection mold technology
(1) Material selection: Choosing the right material is the key to thick-wall optical injection molding. Commonly used materials are polycarbonate, polyimide, polystyrene and so on.
(2) Injection molding process: Injection molding process includes mold design, injection molding machine debugging, injection molding parameter setting, etc. In the process of thick-wall optical injection molding, factors such as injection temperature, injection pressure, and injection speed need to be paid attention to.
(3) Mold maintenance: The service life of the mold is closely related to the maintenance of the mold. During the injection molding process, the mold needs to be cleaned regularly, and lubricated and antirust treated to prolong the service life of the mold.
In general, the production technology and injection molding technology of thick-walled optical molds require precise process control and careful maintenance to ensure the quality and life of thick-walled optical parts.