论文部分内容阅读
所谓TD法(Tayota Diffusion Coating Process),是日本丰田公司中央研究所新井透等人近年来在以硼砂(Na_2B_4O_7)为主的盐浴中进行工模具及机械零件的扩散处理方法。它能在金属表面得到耐磨、耐蚀、耐高温的钛、钒、铌、铬的碳化物和铬固溶体渗层。这种工艺成本低,设备简单,操作方便,无公害,具有生产实用性。该所已与东京热处理公司协作从1973年5月份起接受委托加工。一、工艺概述TD法可使用一般盐浴炉坩埚。所用硼砂量随用途不同而异,一般为70～90%,温
The so-called TD method (Tayota Diffusion Coating Process) is a method of spreading molds and machinery parts in a salt bath dominated by borax (Na 2 B 4 O 7) in recent years by Japan’s Toyota Central Research Institute. It can be worn on the metal surface, corrosion resistance, high temperature titanium, vanadium, niobium, chromium carbide and chromium solid solution layer. This process is low cost, simple equipment, easy operation, pollution-free, with practical production. The institute has been entrusted with the processing of Tokyo heat treatment company since May 1973. First, the process outlined TD method can use the general salt bath furnace crucible. Borax used varies with the use of different, usually 70 ~ 90%, temperature