FIELD: process engineering.
SUBSTANCE: invention relates to diffusion welding and can be used for welding of different materials in various machine building fields, particularly, for production of tungsten-carbide tool. Intermediate interlayer of suspension is produced by the mixing of nickel powder with gain sixe of 0.01-10 mcm and 3% solution of butyral resin in ethyl alcohol at the ratio of said components of 1:1 under effects of ultrasound vibrations for 30-40 minutes. Resulted compound is applied on welding surfaces of both parts in depth of 1-2 mm. Welding parts are dried and assembled in the welding appliance.
EFFECT: reliable joint, higher quality of the weld, decreased residual porosity.
1 dwg
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