Drawing die repair and protection cost

　　The useful repair and protection of the wire drawing die can appropriately reduce the cost. Severe wear will cause the wire drawing die to have horizontal cracks or longitudinal cracks, causing the wire drawing die to become obsolete. Therefore, it is necessary to scientifically formulate the protection standards for the drawing dies for the types and characteristics of the drawn wire. Under normal circumstances, the fine ring wear can be recovered from scratch only by polishing, or a slightly expanded diameter can meet the wire drawing requirements. Excessive wear will greatly reduce the number of corrections of the drawing die.