Method of producing rolling sliding member
AssigneeJtekt Corporation
InventorsTowako Matsui, Katsuhiko Kizawa
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Abstract
A method of producing a rolling sliding member, wherein, after a work for a rolling sliding member, which is made of a bearing steel and formed in a predetermined shape, is quenched, a heating start temperature is set to be 10 to 100° C., a heating finish temperature is set to be 220 to 350° C., a time between the heating finish time and the heating start time is set to be a heating time, the quenched work for the rolling sliding member is heated so that a rate of temperature increase indicated by the following formula becomes 7 to 35° C./s rate of temperature increase=(heating finish temperature−heating start temperature)/heating time, the work is tempered by being cooled without being maintained at a heating finish temperature from the heating finish time.
Claims12
A method of producing a rolling sliding member, the method comprising:
- providing a rolling sliding member of a predetermined shape and comprising bearing steel;
- heating and subsequently quenching the rolling sliding member;
- after the quenching the rolling sliding member, heating the rolling sliding member from a heating start temperature to a heating finish temperature over a heating time so that a rate of temperature increase is indicated by the formula:
- rate of temperature increase=(heating finish temperature−heating start temperature)/heating time,
- where the rate of temperature increase is 7° C./s to 35° C./s, the heating start temperature is set to be 10° C. to 100° C., the heating finish temperature is set to be 220° C. to 350° C.;
- and
- cooling the rolling sliding member from the heating finish temperature without being maintained at the heating finish temperature.
Dependencies are inferred from the claim text.