本文選題：強(qiáng)韌化熱處理 + 變速器齒輪軸�。� 參考：《熱加工工藝》2017年04期

【摘要】：為了使20CrMnTi汽車變速器齒輪軸強(qiáng)韌化,通過改進(jìn)正火和淬火工藝,對其熱處理工藝、力學(xué)性能和耐磨損性能進(jìn)行了研究。結(jié)果表明:與改進(jìn)前熱處理工藝相比,采用改進(jìn)工藝熱處理后的20CrMnTi汽車變速器齒輪軸的25℃抗拉強(qiáng)度、屈服強(qiáng)度和斷后伸長率分別提高8.6%、7.8%和30.2%;350℃抗拉強(qiáng)度、屈服強(qiáng)度和斷后伸長率分別提高43.0%、64.8%和57.9%;25℃和350℃磨損體積分別減小62.2%、71.2%。優(yōu)化的20CrMnTi汽車變速器齒輪軸強(qiáng)韌化熱處理的正火工藝為:875℃×1.5h+650℃×0.5h后空冷的等溫正火處理,優(yōu)化的淬火工藝為:870℃×3.5h碳氮共滲后先560℃×0.5h分級淬火后油冷。
[Abstract]:In order to strengthen and toughen the gear shaft of 20CrMnTi automobile transmission, the heat treatment process, mechanical properties and wear resistance of 20CrMnTi transmission gear shaft were studied by improving normalizing and quenching technology. The results show that the tensile strength of 20CrMnTi transmission gear shaft after heat treatment is increased by 8.6% and 30.2 鈩，

本文編號：1994845