What are the main reasons for the damage of feed processing machinery?

The main reason for the damage of the feed processing machinery die is that it has been severely worn. Moreover, the die will cause surface wear and enlargement of the die hole due to use. It is understood that the wear resistance of a stamper varies with its surface hardness, microstructure and chemical composition.

Usually, if you want to make the feed processing machinery die with wear resistance, the key is the selection of materials and the method of heat treatment. When processing some feed pellets, some ingredients or additives may cause pitting corrosion under high temperature and high pressure conditions, thereby corroding the die material.

In order to avoid this situation, it is necessary to ensure the corrosion resistance of the feed processing machinery die. In comparison, therefore, high chromium, high carbon die has corrosion resistance.

Under normal circumstances, if the feed processing machinery uses a stepped cylindrical hole structure, the actual granulation requires less compression, and the ring mold cannot be made too thin in thickness due to the need for strength. The purpose is achieved by enlarging a section of the hole outside the original straight cylindrical hole.

This mainly plays two roles, one is to ensure the compression ratio of the ring die of the feed processing machinery, and the other is to meet the strength requirements. However, the result of this is that when the cutter is cutting, the distance between the cutting point and the bending point of the particles becomes larger. If the cutter is not sharp enough, the particles may be broken from the junction of the stepped holes and become longer than normal pellets. This is especially noticeable when the outer stepped holes are drilled deeper.