| 摘要 |
1,170,364. Brazing. P. R. MALLORY & CO. Inc. 23 March, 1967 [24 March, 1966], No. 13800/67. Heading B3R. [Also in Division C7] A metal member (e.g. of Cu, W or a W-Cu composite is brazed to a refractory tungsten member (e.g. of W or a W-Cu composite )in vacuo, using a brazing alloy consisting of Ag, Cu and 0À5-5% by weight Ti. A preferred brazing alloy comprises Ag 68À4-71À64% Cu 26À6-27À86% and Ti 0À5-5% and it is most preferred that the ratio Ag/Cu is 18/7. The brazing temperature may be 800- 850‹ C. and the pressure preferably does not exceed 10<SP>-5</SP> Torr. |
