To make the best use of tungsten carbide wire drawing die in order to achieve the best use effect and obtain good product quality, the following 9 rules must be observed:
1. Reasonably choose mold grades. According to the physical and mechanical properties of the drawn material and the size of the material, the grade of the tungsten carbide die is reasonably selected. For example, in the case of steel bars with a tensile diameter of less than 20.0mm, non-ferrous metal wires or bars, you should choose YG6; for 20-50mm, you should choose YG8, and for larger ones, choose YG11 or YG15.
2. Check the wire drawing machine carefully. Before drawing, check whether the drawing machine is stable and there must be no jumping, otherwise the drawing die will be easily damaged;
3. Properly clean up the wire. The surface of the wire must be properly cleaned before drawing, otherwise it will not only reduce the service life of the mold, but also easily form scratches on the wire, which will affect the surface quality;
4. Choose lubricants correctly. It is necessary to choose a lubricant with excellent lubrication effect, such as wire drawing powder, etc., so as to increase the service life of the mold.
5. Cool the tungsten carbide wire drawing die well and lubricate the working area, especially when drawing at high speed, so as to maximize the life of the die.
6. Choose a reasonable compression rate. The appropriate compression rate should be selected according to the size and performance of the wire drawn. Too small a compression rate will increase production costs, and a too large compression rate will cause the mold life to decrease, and even mold explosions will occur.
7. Pay attention to controlling the surface condition of metal materials. During the drawing process, if metal particles are attached to the inner hole of the mold and scratches are formed on the surface of the metal material, stop immediately, remove the attached metal particles, and polish the inner hole. Every time before using the mold, the metal particles in the mold hole must be carefully cleaned.
8. Check the mold regularly. The most reasonable method is to do regular inspections without waiting for metal particles to appear on the mold hole walls, and to deal with any abnormalities in time;
9. Keep the tungsten carbide wire drawing die properly. Unused molds should be coated with anti-rust oil for protection.
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