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现已采用成本较低的粘结剂处理预混粉FLOMET 4 4A和 4 4B取代扩散粘结粉。为避免镍与铜的偏析和改善预混粉的流动性 ,将以 0 .85 %Mo预合金ATOMET 4 4 0 1作基体粉 ,并添加镍、铜与石墨制取的预混粉进行粘结剂处理 ,其性能类似于扩散粘结粉。FLOMET 4 4A和 4 4B已用于制造汽车、电动工具与农机零件。研究了它们的压缩性、重量稳定性、力学性能与显微组织 ,并分别与含 1.75 %Ni和 4 .0 %Ni的扩散粘结粉做对比。低成本的粘结剂处理预混粉其尺寸变化、稳定性和力学性能与扩散粘结混合粉相同。
Low-cost binders have now been used to treat blends FLOMET 4 4A and 4 4B instead of diffusion bonded powders. In order to avoid the segregation of nickel and copper and improve the fluidity of the premixed powder, the matrix powder is prepared with 0 .85% Mo pre-alloy ATOMET 4 4 0 1 and nickel, copper and graphite premixed powder are bonded Agent treatment, its performance is similar to diffusion bonding powder. FLOMET 4 4A and 4 4B have been used to make cars, power tools and farm machinery parts. Their compressibility, weight stability, mechanical properties and microstructure were investigated and compared with diffusion bonded powders containing 1.75% Ni and 4.0% Ni, respectively. Low-cost binder-treated premixed powders vary in size, stability and mechanical properties as diffusion-bonded mixes.