对新开发的几种硬质合金挤压成形剂的流变性能与脱脂行为进行了深入的研究，发现成形剂的设计及混炼决定其流变性能与脱脂行为，合理地选择成形剂的组成及配比是挤压成形新工艺技术的关键。实验条件下测得成形剂组织均匀，粘流活化能在８０～１１５ｋＪ／ｍｏｌ之间，粘度对温度的依赖性较小；在热脱脂时，成形剂脱除速率较均匀，便于工艺制定与控制 The rheological properties and degreasing behavior of several newly developed hard alloy extrusion compacts were studied in depth. It was found that the design and mixing of the forming agent determined its rheological properties and degreasing behavior, and the composition of the forming agent And the ratio is the key to extrusion forming new technology. Under the experimental conditions, the forming agent has a uniform structure and the activation energy of viscous flow is between 80 and 115 kJ / mol, and the dependence of viscosity on temperature is small. When the thermal degreasing is carried out, the removal rate of the forming agent is more uniform, which facilitates process formulation and control