该厂热处理车间为改善车间的落后劳动条件，经过反复试验研究，终于将RJT一140淬火炉和RJT—85回火炉设计成联线。采用此联线对工件进行热处理，生产效率比过去可提高20名，操作工人减少到三名，劳动条件得到了很大程度改善，而且过去工件卡碰伤的现象也显著减少。文内介绍了联线的改装情况及操作规程。附图2幅。 The plant heat treatment workshop to improve the backward working conditions of the workshop, after repeated trial and study, finally RJT-140 quenching furnace and RJT-85 back to the stove designed into a line. With this connection, the work piece is heat-treated, the production efficiency can be increased by 20 than in the past, the number of workers reduced to three, the working conditions have been greatly improved, and the past phenomenon of workpiece card bruising has also been significantly reduced. The article introduced the modification of the line connection and operating procedures. Figure 2 Photo.