Exploration: The relationship between the thermal processing technology of the injection mold and the product performance

2021-03-25 09:53:49 admin

Exploration: The relationship between the thermal processing technology of the injection mold and the product performance

I don’t know if you have ever understood that the thermal processing quality of injection molds has a great impact on the performance and service life of the product. In actual life and work, the design and production of each product require excellence, and specific operations will still have problems. The quenched shape of the product is related to cracking, early fracture in the use process, and thermal processing technology of the injection mold. Next, I will give you a detailed introduction to the relationship between mold thermal processing technology and product performance.


Formulate correct heating specifications for injection molds and adopt correct forging force methods

1. Forging process, which is an important link in the product manufacturing process. For high-alloy tool steel products, technical requirements are usually put forward for the material carbide distribution and other metallographic structure. In addition, the forging temperature range should be strictly controlled, the correct heating specification should be formulated, the correct forging force method should be adopted, and the slow cooling or timely annealing after forging should be used.

2. Prepare for heat treatment. Depending on the material and requirements of the product, preliminary heat treatment processes such as annealing, tempering or quenching and tempering should be used to change the structure, eliminate the structural defects of the forging blank, and change the processing technology. High-carbon alloy die steel can eliminate the reticulated secondary cementite or chain carbide after proper preliminary heat treatment, so that the carbide can be spheroidized and refined, and the uniformity of carbide distribution can be promoted. This will help ensure the quality of quenching and tempering and increase the life of the mold.

3. Hardening and tempering. This is the key link in product heat treatment. If overheating occurs during quenching and heating, it will not only cause greater brittleness of the workpiece, but also easily cause deformation and cracking during cooling, which will seriously affect the life of the product. Special attention should be paid to avoid oxidation and decarburization when the die is quenched and heated, and the thermal process specifications should be strictly controlled. When conditions permit, vacuum heat treatment can be used. After quenching, it should be fired in time, and different tempering red techniques should be used according to technical requirements.

4. Stress relief annealing. The product should be subjected to stress relief annealing treatment after rough machining, with the purpose of eliminating the internal stress caused by rough machining, so as to avoid excessive deformation and cracks caused by quenching. [For details, please refer to "Injection mold market prices fluctuate, who is the "behind the scenes"? "Related content]

Well, the above is the connection between the thermal processing technology of the injection mold and the product performance that I shared for you today. I believe that everyone has a comprehensive understanding and understanding of the above issues after reading this article and sharing the introduction. I hope to share the above It can help you understand the product better. If you have any questions, please contact customer service online.