CHOICE OF STEEL GRADE FOR HIGHLY­STRESSED WHEEL GEARS OF TRANSMISSIONS OF MOTOR AND TRACTOR EQUIPMENT BY CRITERION OF CEMENTED LAYER HARDENABILITY

Abstract

On a condition of equality of speeds of cooling conformity between distance from a face surface of the tempered face sample and the module of gears for different areas of section of a tooth is established. It is shown, that on the basis of the received dependence with use of diagrammes hardenability of carburized layers and a core of concrete mark of a steel the proved choice of the material providing set quality indicators of chemical heat treatment of gears is carried out