| 摘要 |
FIELD: technological processes; metallurgy. ^ SUBSTANCE: method includes preparation of uniform mixture of powders that contains not more than 92 wt % of tungsten, the rest is nickel and iron, and bar pressing. After bar pressing wafer is forced on its surface with tungsten content of 94 - 98 wt %, the rest is nickel and iron or copper, and than item is sintered. ^ EFFECT: reduction of deformation of sintered thin-walled complex-shaped large-size items and reduction of metal surplus for mechanical processing. ^ 2 tbl, 2 dwg, 1 ex |
