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0 前言 金属制品的清洗,在热处理工序中是一个不可缺少的环节。我国目前热处理厂主要还是采用清水清洗或碱液清洗,而碱液清洗需要大量的化工原料,清洗液需经常更换,容易造成污渍沉积。目前绝大多数热处理厂又无三废治理,造成了一定的环境污染,且碱液清洗所使用的氯化物等对人体有害。随着我国江河治理力度的不断加强,环境保护等相关法律的进一步贯彻执行,这些碱液清洗机将被逐渐淘汰。如何生产出高效、优质、无污染、低成本的清洗设备,是众多热处理设备厂研究的课题。下面对几种清洗设备的原理及发展趋势作一综述。
0 Preface Metal products cleaning, heat treatment process is an indispensable part. At present, China’s heat treatment plant is still mainly used for cleaning water or lye cleaning, and lye cleaning requires a lot of chemical raw materials, cleaning fluid needs to be replaced frequently, likely to cause the deposition of stains. At present, the vast majority of heat treatment plants have no waste treatment, resulting in a certain degree of environmental pollution, and alkali chloride used in cleaning is harmful to the human body. With the continuous strengthening of China’s river management, environmental protection and other related laws to further implement the lye washing machine will be gradually eliminated. How to produce efficient, high quality, pollution-free, low-cost cleaning equipment, many heat treatment plant research topic. The following several cleaning equipment, principles and trends for a review.