What are the characteristics of heat treatment for cold-work injection mold materials?

 

Heat treatment characteristics of cold-work injection mold materials:

 

1. The heating process for cold-work mold steel is best carried out slowly, using preheating or a gradual, stepped temperature increase. This is because the material contains a large number of various alloying elements, resulting in complex alloying and relatively poor thermal conductivity.

 

2. Advanced heating equipment and methods are generally used during heating. Attention should be paid to the heating medium to ensure thorough purification of the mold steel during heating, thereby improving its surface quality.

 

3. To stabilize the performance of the mold steel, after achieving the required hardening conditions, relatively gentle cooling methods such as isothermal quenching, staged quenching, and high-pressure quenching can be used to effectively preserve the performance of the mold steel.

 

4. Heat treatment of mold steel aims to improve material quality. Cold treatment and nitriding can be performed on the mold steel surface to effectively enhance its performance, hardness, and strength.

 

5. If a salt bath heating method is used, thorough cleaning is essential afterward. Care must be taken to protect the parts produced during each process to prevent damage to the mold steel and ensure its quality. VI. Because the raw materials for cold work dies are relatively expensive, and the workpiece processing is complex, the manufacturing cost is high and the production time is long, caution must be exercised during operation to ensure the stability and safety of the die manufacturing process. Rework will result in greater losses.