Carry out crack repair pretreatment during the manufacturing process of cemented carbide drawing die or material. This kind of technology is to carry out some special treatment inside the material before the crack occurs. When a crack occurs inside the material during use, the crack is automatically repaired to eliminate the crack. Whether to change the material itself according to the pretreatment
Carry out crack repair pretreatment during the manufacturing process of cemented carbide drawing die or material. This kind of technology is to carry out some special treatment inside the material before the crack occurs. When a crack occurs inside the material during use, the crack is automatically repaired to eliminate the crack.
Cemented carbide drawing die
At present, the two major techniques for repairing cemented carbide die cracks are divided into two categories according to whether the pretreatment changes the composition of the material itself:
1. It does not change the composition and structure of the material itself, but only pre-inserts the repairing microstructure inside the material during the manufacturing process. When cracks occur during use, the microstructure generates a repair agent to repair the cracks;
The second is to adjust the composition or structure of the cemented carbide drawing die material, and add special ingredients in the material in advance. When cracks occur, these special ingredients are transferred to the crack to repair the crack.
Repair the cemented carbide drawing die after cracks occur. Divided into manual repair and self-repair. Manual repair is generally carried out by means of energy replenishment, and internal cracks can be repaired only after the action of external factors, such as heating, pressure, and deformation. Specific technologies mainly include pulse current repair, borehole repair flow repair, pressurized high temperature repair, variable temperature repair and so on. Self-repair is mainly bionic repair.
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