二氧化锆与不锈钢混合粉末的挤压成形特性

Extrusion Characteristics of Composite Powders of Stainless Steel and Zirconia

  • 摘要: 研究了在二氧化锆与不锈钢的混合粉末中加入粘结剂时的挤压成形特性,并着重考察了混合粉末的可挤压上限条件.所用粘结剂为水溶性羟两基甲基纤维素(HPMC)和水.结果表明,混合粉末的可挤压上限成分(质量分数)随不锈钢粉末含量的增加而上升,当不锈钢粉末含量(体积分数)为70%~90%时达到最大;粘结剂中HPMC的质量分数以10%为宜.

     

    Abstract: The extrustioncharacteristics of composite powders of stainless steel and zirconiahave been researched experimentally, and the upper extruded composition of the composite powders being discussed. Hydroxy-propyl methyl-cellulose (HPMC) and water was used as the binder for the extrusion. The results show that the extrudable upper compositionincreases with increasing the stainless steel powder content in composite powder, and that the reasonable content of HPMC in the binder being 10%.

     

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