本文研究了W-K系中的气体杂质对烧结特性和残余孔隙率的影响。为此,采用几乎相同粒度的纯钨粉和K-Si-Al掺杂钨粉制备烧结锭,用比较法,研究了残余孔隙总体积、孔隙位置(颗粒间与颗粒内孔隙)、大小和形状,以及孔隙间距。总之,在试验结果的基础上,企图确定显微组织的特征,以及获得存留于烧结体封闭孔隙内的不溶性气体的资料。 In this paper, the effects of gas impurities in W-K series on sintering characteristics and residual porosity were studied. For this purpose, pure tungsten powder and K-Si-Al-doped tungsten powder of almost the same particle size were used to prepare sintered ingot. Comparing the total residual pore volume, pore position (interparticle and intraparticle pore), size and shape , And pore spacing. In summary, based on the results of the experiments, attempts were made to determine the characteristics of the microstructure and to obtain information on the insoluble gases remaining in the closed pores of the sintered body.