The working environment of card clothing is very harsh and requires high hardness, wear resistance and service life. Nowadays, many manufacturers use high-frequency induction heating equipment to heat treat it, and the effect is very good. However, during the heat treatment process, affected by many factors, the workpiece may produce some defects. Today, the editor will tell you what the common defects are.
As we all know, card clothing is divided into two categories: elastic card clothing and metal card clothing. Today, the editor will talk about the defects of these two types of card clothing respectively.
1. Elastic card clothing
The most common defect of elastic card clothing during the heat treatment process is low hardness. After analysis, it is concluded that the reason is that the distance between the sensor of the high-frequency induction heating equipment and the card clothing is inappropriate. Therefore, we should strictly inspect both. distance to ensure consistent heating.
2. Metal card clothing
There are two types of defects that are easy to occur in metal card clothing. One is uneven hardness, and the other is the uneven plane formed by the needle tip after coating.
1. The reason for the uneven hardness defect is that the induction heating temperature is not adjusted appropriately. Therefore, we should readjust the temperature to ensure that the temperature is appropriate.
2. The plane formed by the needle tip after coating is uneven. This is mainly caused by the uneven hardness of the blank. Therefore, before using high-frequency induction heating equipment for heat treatment, we need to check the hardness of the raw material to ensure the consistency of the overall hardness.
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GS-ZP-1200
