DIFFUSION WELDING METHOD Russian patent published in 2002 - IPC

FIELD: solid phase welding of precision parts of different type materials. SUBSTANCE: method comprises steps of placing between welded surfaces of joined parts intermediate gasket in the form of porous belt with thickness (50-75) micrometers and porosity (50-60)% prepared by rolling. Such belt includes ultrafine high-active metal powder or mixture of ultrafine high active powders of metals obtained by thermal decomposition of organic metal salt or mixture of metal salts. Said gasket is made at normalizing roughness of its surface in depending upon surface roughness of welded materials. EFFECT: enhanced intensity of welding process, improved strength properties of welded joints. 2 cl, 2 dwg, 1 ex