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印影划线是应用印刷行业的晒版原理,移植到金属模具上划线的一项新技术,它可以代替形状复杂的锻压模具的手工划线。其主要工序是:清洗、喷涂、曝光、显影。特点是:设备简单、操作方便、效率高、质量好,为复杂机械零件的划线开辟了新的途径。一、原理在金属平面上喷涂一层感光的胶膜,制成这种胶膜的材料是聚乙烯醇或动物胶和重铬酸盐的混合液。用这种感光液喷涂在金属模具表面上,干燥后立即将
Printing marking is the application of the printing industry, the principle of copying, transplanted to the metal mold marking a new technology, it can replace the complex shape of the forging die by hand crossed. The main process is: cleaning, spraying, exposure, development. Features are: simple equipment, easy operation, high efficiency, good quality, complicated machinery parts crossed the line has opened up new avenues. First, the principle of spraying a layer of photosensitive metal film on the plane, made of this film is a polyvinyl alcohol or animal glue and dichromate mixture. Spray with this kind of photosensitive liquid on the mold surface, and dry it immediately