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很久以来,气相涂层生产已经引起了很多研究员和技术员的注意。但是由于种种原因,这项被作者们所推存的技术还没有得到工业的应用。现在随着新的耐热合金的发展,人们对保护涂层沉积有了特殊的兴趣。这类合金是建立在较易氧化的耐火金属的基础上的。用循环技术进行气相热扩散涂层生产便于操作,经济,安全。这种方法是把材料放在一个被密封的气路中进行,并有条不紊地供给渗入气体。材料送入以反应(1)和(2)为基础,它们在不同的温度下进行:上EH。二十X一yXyE一生EH (在T,上EH二、里E。一生EH:,(在TZy XyX(2) 式中,E是一种
For a long time, the production of gas phase coating has attracted the attention of many researchers and technicians. However, due to various reasons, the technology pushed by the authors has not yet been applied in industry. Now with the development of new heat-resistant alloys, there is a special interest in protective coating deposition. This type of alloy is based on relatively oxidizable refractory metals. Gas-phase thermal diffusion coating production by circulation technology is easy to operate, economical and safe. This is done by placing the material in a hermetically sealed air circuit and supplying the infiltration gas in an orderly manner. The feeding of materials is based on reactions (1) and (2), which are carried out at different temperatures: upper EH. Twenty-one xyE lifetime EH (in T, on EH two, where E. EH :, (TZyXyX (2) where, E is a