Tungsten alloy feed for MIM and preparation method of tungsten alloy feed

The invention relates to the field of tungsten alloy feed, and particularly discloses tungsten alloy feed for MIM and a preparation method of the tungsten alloy feed. The tungsten alloy feed for MIM comprises surface modified tungsten alloy mixed powder and a binder, the weight ratio of the surface modified tungsten alloy mixed powder to the binder is (93-97): (3-7), and the binder comprises POM, PP, HDPE, a lubricant and an antioxidant. The preparation method comprises the following steps: carrying out banburying on the surface modified tungsten alloy mixed powder and the binder, and extruding to obtain the tungsten alloy feed for the MIM. The problem that the stability of mass production of tungsten alloy feed for MIM is poor is solved. 本申请涉及钨合金喂料的领域，具体公开了一种MIM用钨合金喂料及其制备方法。MIM用钨合金喂料包括表面改性钨合金混合粉和粘结剂，所述表面改性钨合金混合粉和粘结剂的重量比为（93-97）：（3-7），所述粘结剂包括POM、PP、HDPE、润滑剂、抗氧剂；其制备方法为：将表面改性钨合金混合粉与粘结剂密炼，后挤出制得MIM用钨合金喂料。本申请解决了MIM用钨合金喂料量产稳定性差的问题。