What are the main steps in the manufacturing process of graphite molds? The manufacturing process of graphite mold mainly includes the following steps:
Raw material selection: Choose high-quality graphite raw materials, usually extracted from graphite ore. For the raw materials for the production of graphite molds, petroleum coke, needle coke and coal pitch are also included.
Crushing and grinding: Large pieces of graphite raw material are crushed into small particles for easy subsequent processing.
Ingredients: According to the shape and size of the mold, select the appropriate graphite powder and binder, and add the curing agent according to a certain ratio.
Molding: The prepared raw materials are poured into the mold and molded by mechanical means, such as pressing and extruding. During the molding process, attention should be paid to controlling the temperature and pressure to ensure the accuracy and stability of the mold.
Curing: The molded graphite mold is cured to enhance its strength and hardness. Curing is usually done by heating, pressurization, or both.
Sintering: The cured graphite mold is sintered to form a good bond between the graphite particles, and at the same time remove the impurities and excess holes on the surface, so as to improve the surface finish and accuracy of the mold.
Polishing and quality inspection: fine polishing of the mold to ensure that its surface is smooth and meets the product quality requirements. At the same time, quality inspection is carried out to ensure that the quality and accuracy of the mold meet the requirements.
In addition, there are some other methods for preparing graphite molds, such as physical method, electroplating method, etc. In the process of making graphite molds, it is also necessary to pay attention to the selection of graphite materials, the design of cooling systems, the design of exhaust systems, etc., to ensure the quality and life of the molds.
After the above steps are completed, the graphite mold of the specific size and shape is made. This kind of mold can be used in various industrial production, such as non-ferrous metal casting, plastic mold manufacturing, etc. #石墨模具#VC石墨模具#电子烧结石墨模具#烧结石墨模具 #石墨模具加工
