METHOD OF MANUFACTURE OF MULTI-LAYER METAL-FLUOROPLASTIC BAND Russian patent published in 2006 - IPC B22F7/04 

FIELD: manufacture of multi-layer metal-fluoroplastic bands.

SUBSTANCE: proposed method includes forming porous layer from bronze, impregnation of it with anti-friction compound containing fluoroplastic and calibration of band to required size at simultaneous face-surfacing of anti-friction layer containing fluoroplastic; forming of porous bronze layer, impregnation of it with anti-friction compound containing fluoroplastic and face-surfacing of anti-friction layer are performed at continuous passage of band through multi-zone conveyer furnaces; used as base is steel band with brass coat; bronze porous layer is formed from brass forming intermediate copper-zinc-tin eutectic layer on interface by passing band through zones of multi-zone conveyer furnace at rate of (50±5) m/h and heating temperature of 700°C, 790°C and 850°C±10°C and cooling temperature of 780°C, 710°C, 660°C±10°C, respectively followed by forced cooling to 500°C in reducing medium.

EFFECT: enhanced mechanical strength and wear resistance; reduction of labor consumption.

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