What should I do if the Mold Collapsible Core is not hard enough?

With the improvement of customer demand, the requirements for the use of Mold Collapsible Core‘s performance and quality also increase, so why is the mold hardness not enough?

1. Underheating: The reason for underheating is that the heating temperature is too low or the holding time is insufficient.

2. Overheating: Overheated austenite dissolves excess carbon and alloying elements.

3. Insufficient cooling speed: improper selection of cooling medium.

4. Improper operation: for example, the stay in the water is too short during double-liquid quenching.

Knowing the reason why the hardness of Mold Collapsible Core is not enough, I know to take measures, I hope it can help you.