Why is it necessary to check and clean the residue from the upper and lower mold heads before using a metallographic mounting machine?

Before using the metallographic mounting press, checking and cleaning the Bakelite powder adhesions on the edges of the upper and lower mold heads is a very important step.
This is because these adhesions may affect the parallelism of the mold heads and the placement accuracy of the samples, thereby affecting the mounting effect. Through timely cleaning, we can ensure the precise operation of the machine and provide customers with better products and services.