宝鸡有色金属研究所第四研究室用增塑挤压法研制成了多孔簿壁钛管。增塑剂为甲基纤维素,润滑剂为硬脂酸。已制成ф5×0.5×400、ф10×1×400、ф20×1×400毫米等多种规格的簿壁多孔钛管,其最大孔径为5—15、15—25和30—50微米,相对透气度分别为0.5—1×10~(-4)、1—3×10~(-3)和3～6×10~(-3)升/厘米~2·分·毫米汞柱。此种增 Baoji Nonferrous Metal Research Institute of the fourth laboratory with plastic extrusion method developed into porous wall titanium tube. Plasticizer is methyl cellulose, lubricant is stearic acid. Has been made ф5 × 0.5 × 400, ф10 × 1 × 400, ф20 × 1 × 400 mm and other specifications of the porous wall of the multi-wall titanium tubes, the maximum aperture of 5-15, 15-25 and 30-50 microns, the relative The air permeability is 0.5-1 × 10 -4, 1-3 × 10 -3 and 3-6 × 10 -3 / cm -2 · mmHg, respectively. Such increase