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一、前言 钨基合金(又称钨基高比重合金),具有许多优良性能,诸如比重高,强度高,吸收射线性能好,热膨胀系数小,导热性好,耐腐蚀和易切削加工等。在军工和国民经济的许多部门获得广泛的应用。如航空工业中的各种配重,陀螺仪转子,手表重锤,吸收射线的屏蔽材料,穿甲弹弹芯和压铸模等。钨合金用作压铸模具是一种好材料。
I. INTRODUCTION Tungsten-based alloy (also known as tungsten-based high specific gravity alloy) has many excellent properties such as high specific gravity, high strength, good absorption and radiation performance, small thermal expansion coefficient, good thermal conductivity, corrosion resistance and easy cutting. In many sectors of the military and the national economy has been widely used. Such as various counterweights in the aeronautics industry, gyroscope rotors, watch hammers, shielding materials that absorb radiation, armor-piercing projectiles and die-casting molds. Tungsten alloy die-casting mold is a good material.