采用二步烧结法(固相烧结+液相烧结)控制高比重合金的变形.首先在1400℃下固相烧结,然后在粘结相的液相线温度以上进行液相烧结以达到全致密.由于在固相烧结阶段形成了坚固的十四面体形的三维连通网络骨架,阻碍了液相烧结中钨颗粒"偏析"所引起的变形,合金的性能和显微组织的均匀性大大提高.
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