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众所周知,通常的热处理往往产生四大公害:大气污染、水质污染、火災和噪音。因此消除公害是八十年代发展热处理技术的一大特点。目前,由于四大公害已得到一定程度的治理,而能源危机越来越严重,故国外把节省能源提高到比清除公害更为重要的地位,在21世纪的热处理中,节省能源仍将成为人们不断努力的目标。近年来,随着工业的发展和热处理应用愈益广泛,国外发展了一系列热处理新技术,大都具有无公害、省能源、高质量或低成本的优点。
As we all know, the usual heat treatment tend to produce four major public hazards: air pollution, water pollution, fire and noise. Therefore, eliminating pollution is a major feature of the development of heat treatment technology in the 1980s. At present, as the four major public hazards have been controlled to some extent and the energy crisis has become more and more serious, it has become even more important for the government to save energy than it is for pollution elimination. In the 21st century, heat treatment will continue to save people’s energy The goal of continuous efforts. In recent years, with the industrial development and application of heat treatment more and more widely, a series of new heat treatment technologies have been developed abroad, most of which have the advantages of pollution-free, energy-saving, high-quality or low-cost.