METHOD FOR PRODUCTION OF CAST-IRON WHEELS Russian patent published in 1997 - IPC

FIELD: production of cast-iron gear wheels in various branches of mechanical engineering. SUBSTANCE: for producing bevel gears with circular teeth a blank is made by iron casting with rim of smooth profile, and formation of teeth on this rim is effected by method of hot rolling with subsequent gradual cooling of blank, thus achieving structural strengthening of blank material which is required for obtaining sufficient characteristics of viscosity and strength. Heating of blank for hot rolling is carried out up to 950 to 1150 C, and cooling can be effected either in open air or in a tank. EFFECT: high efficiency. 3 cl, 1 dwg