横向稳定杆PAG热处理研究
Research of PAG in Heat Treatment of Stabilizer Bar
摘要: 本文使用PAG (Polyaleneglycol)和普通淬火油两种淬火介质,对直径Φ60 mm重卡横向稳定杆进行热处理对比试验。通过试验,结果显示:使用PAG水溶性淬火介质完成热处理的淬火试样,其淬火平均硬度值 ≥ 58 HRC,回火后其金相组织为均匀细小的回火屈氏体组织,且金相组织优于使用普通淬火油热处理试样;使用PAG水溶性淬火介质热处理后试样平均疲劳寿命可达40万次以上,与普通淬火油热处理试样相比,疲劳寿命提高一倍以上,较大程度上提高了稳定杆的性能。
Abstract:
In the article, PAG (Polyaleneglycol) and general oil medium are used for the heat treatment of stabilizer bar with diameter of Φ60 mm. The test shows that the average hardness of sample quenched by PAG is above 58HRC, and the micro-structure after tempering is uniform and fine tempered Martensite, which is better than that quenched by general oil. Its fatigue life reaches more than 400,000 times; compared with the sample quenched by general oil, the fatigue life is improved more than one time, and the quality of stabilizer bar has been greatly improved.
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