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值此科学技术高度发展的时代,热处理技术日新月异。本文仅就国外近年来在这方面的发展动态给予简要报道,以供参考。一、无公害热处理 1.热处理的四大公害 (1) 大气污染由燃料和淬火油产生的煤烟、废气,以及由喷砂产生的尘埃逸散于大气中出现的污染。 (2) 水质污染淬火油漂散于排放水而导致的污染。 (3) 噪声由烧咀、鼓风机、压缩机、吹咀以及碰撞金属等引起。 (4) 火灾由淬火油、燃料等着火而引起。 2.防大气污染措施 (1) 改变加热能源重油→丙烷→城市煤
At this time of highly developed science and technology, heat treatment technology with each passing day. This article only gives a brief account of the developments of foreign countries in this area in recent years for reference. First, the pollution-free heat treatment 1. Heat treatment of the four public nuisances (1) air pollution from the fuel and quenching oil produced soot, waste gas, and sand produced by the dust escaping in the atmosphere of pollution. (2) Water Pollution Quenching oil is dispersed in the water caused by pollution. (3) Noise from burning Tsui, blowers, compressors, blow Tsui and collision caused by metal. (4) The fire caused by the quenching oil, fuel and other fire. 2. Anti-atmospheric pollution measures (1) change the heating energy heavy oil → propane → city coal