METHOD OF OBTAINING WEAR-RESISTANT LAYER OF WORKING SURFACES OF END-FACE SEALS OF ROTATING SHAFTS Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: end-faces of the rotating shafts are provided with circular grooves filled with powder of tungsten carbide composition. The powder is pressed and impregnated with copper-phosphorus solder whose melting temperature does not exceed that of the material of which the working surface of the end-face seal is manufactured. Titanium, structural or alloyed steel may be used as the material for manufacturing the end-face seals of the rotating shafts. EFFECT: high-quality wear-resistant layer. 3 cl