Brief description of the brazing of pieces of beryllium, has a lower temperature has 800degre c.

摘要

The invention relates to a method of brazing beryllium-based workpieces, at a temperature below 800 DEG C. According to this method, a first workpiece 1 made of beryllium or beryllium alloy is joined to a second workpiece 5 made of a different material, for example Monel, by placing, above the joint to be produced, a ring 7 of brazing alloy consisting of - 58 to 65 % by weight of silver, - 26 to 29 % by weight of copper, - 9 to 13 % by weight of indium, and - 0 to 2 % by weight of titanium then the assembly is subjected to a high vacuum at a brazing temperature of from 700 to 800 DEG C. By way of example of the brazing alloy, mention may be made of the alloys - 63 % Ag, 27% Cu and 10 % In, - 59 % Ag, 27.25 % Cu, 12.5 % In and 1.25 % Ti. IMAGE