轴承
軸承
축승
BEARING
2015年
8期
30-32
,共3页
李付伟%龚建勋%宋华华%刘汇河%王兵信
李付偉%龔建勛%宋華華%劉彙河%王兵信
리부위%공건훈%송화화%류회하%왕병신
滚动轴承%GCr15 钢%薄壁套圈%高压气淬
滾動軸承%GCr15 鋼%薄壁套圈%高壓氣淬
곤동축승%GCr15 강%박벽투권%고압기쉬
rolling bearing%steel GCr15%thin -walled ring%high -pressure gas quenching
为探索 GCr15钢薄壁套圈高压气淬的可行性，对有效壁厚5 mm 的 GCr15钢制薄壁轴承套圈在真空炉中以不同压力的氮气进行了气淬试验。结果表明：高压气淬能满足薄壁套圈的淬透性要求；最佳气淬压力为0．3～0．4 MPa，此时套圈变形较小，且淬火组织和硬度均能满足相关标准的要求。
為探索 GCr15鋼薄壁套圈高壓氣淬的可行性，對有效壁厚5 mm 的 GCr15鋼製薄壁軸承套圈在真空爐中以不同壓力的氮氣進行瞭氣淬試驗。結果錶明：高壓氣淬能滿足薄壁套圈的淬透性要求；最佳氣淬壓力為0．3～0．4 MPa，此時套圈變形較小，且淬火組織和硬度均能滿足相關標準的要求。
위탐색 GCr15강박벽투권고압기쉬적가행성，대유효벽후5 mm 적 GCr15강제박벽축승투권재진공로중이불동압력적담기진행료기쉬시험。결과표명：고압기쉬능만족박벽투권적쉬투성요구；최가기쉬압력위0．3～0．4 MPa，차시투권변형교소，차쉬화조직화경도균능만족상관표준적요구。
In order to explore the feasibility of high -pressure gas quenching for thin -walled rings made of steel GCr15,the gas quenching tests are carried out in a vacuum furnace under different pressure of nitrogen for rings of thin-walled bearings made of steel GCr15 with effective wall thickness of 5 mm.The results show that the high -pressure gas quenching meets the hardenability requirements of thin -walled ring.The optimum gas quenching pressure is 0.3~0.4 MPa,the deformation of rings is smaller,the structure and hardness after quenching meet the requirements of relevant standard.
