unground T.C wire drawing dies nibs 22 * 4.7 * 18 mm
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the effect of stretching temperature on wire drawing dies life The temperature at which the tungsten molybdenum wire is stretched should be based on the pass compression ratio and the mold. The heat dissipation conditions, mold temperature and other factors are reasonably determined. Stretching temperature too high, the adsorption and viscosity of graphite emulsion are reduced, and even graphite appears. The phenomenon of burning of components makes the surface of the tungsten-molybdenum wire rough. The ground is exposed to the outside to increase the coefficient of friction between the wire and the mold. Stretch The temperature is too low, the deformation resistance of the metal is large, and the wire and the mold are increased. Rubbing force causes the mold to wear significantly.
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