Integration of the sub zero-treatment into vacuum hardening processes and subsequent advantages
The vacuum heat treatment with overpressure gas quenching is more and more accepted due to considerable advantages compared to the traditional oil and salt bath processes. Continuous further development and new concepts like multi-directional cooling systems, a separate quenching chamber and ,,sub zero systems lead towards an oxidation free and low distortion vacuum heat treatment for a broad range of parts and materials. Short and energy saving processes guarantee a high economic efficiency and environmental compatibility. The vacuum furnace with a separate quenching chamber offers many advantages like a higher quenching speed and a more efficient use of energy (ref. 1, 2). The ,,sub zero system, which is integrated into the standard vacuum furnace achieves a heat treatment result with a high conversion of retained austenite in fully automatic hardening and tempering processes.
Luigi Dallo
SCHMETZ GmbH, Menden, Germany
国际会议
北京
英文
89-92
2012-10-23（万方平台首次上网日期，不代表论文的发表时间）