摘要
以316L不锈钢粉、PMMA粉末为原料,采用粉末烧结法制备多孔不锈钢盘。采用扫面电子显微镜、泡压法孔径分布仪、透气测定仪等对不锈钢盘的孔径、渗透系数、微观结构等进行了表征。结果表明:随着PMMA含量减小,多孔金属烧结盘厚度降低,其烧结后金属颗粒间距减小,更易形成烧结颈。最佳烧结温度1100℃,当PMMA含量最小时,其透气率达到最小值63 m^(3)/(m^(2)·kpa·h),平均孔径降低至2.79μm。
Using 316L stainless steel powder and PMMA powder as raw materials,porous stainless steel plate was prepared by powder sintering method.The pore diameter,permeability coefficient and microstructure of the stainless steel plate were characterized by SEM、bubble pressure aperture distributing instrument and air permeability measuring instrument.The results show that with the decrease of PMMA content,the thickness of porous metal sintering plate decreases,the distance between metal particles decreases after sintering,and the sintered trap is easier to be formed.The best sintering temperature is 1100℃.When the PMMA content is the lowest,the ventilation value reaches the minimum value of 63 m^(3)/(m^(2)·kpa·h).and the average pore diameter decreases to 2.79μm.
作者
王耀辉
成凯
曹卜元
王叶
WANG Yaohui;CHENG Kai;CAO Buyuan;WANG Ye(Western Baode Technologies Co.,Ltd,Xi An 710201,China)
出处
《粉末冶金工业》
CAS
北大核心
2022年第2期57-61,共5页
Powder Metallurgy Industry
关键词
粉末烧结法
多孔不锈钢盘
造孔剂比例
powder sintering
porous stainless steel plate
proportion of pore forming agent
