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蚀刻工艺主要是针对有色金属讲的,如印刷电路板的制作、铝标牌的加工等。对于钢件的蚀刻精度较低,可靠性差,工艺比较复杂,不易操作。精度高的零件,一般均采用机刻,但成本高,工人技术水平要求较高,易出现人为的失误。采用照相蚀刻工艺,其加工面上凸凹界限十分清晰,分辨率达0.15mm左右,完全达到设计要求。照相蚀刻工艺主要分为两大部分:底版的制作和零件的蚀刻。首先,将所需的图案(厂标、商标、字体、数字、箭头、刻线等)通过照相制版技术制成所需的底版,然后利用水溶型光致抗蚀干膜,把干膜贴在经过一定处理的加热零件上,室温下冷却后进行曝光、显影、蚀刻及去膜处理,清洗后使零件表面形成所需的凸凹图案。因为照相制版技术要求较高,我厂
Etching process is mainly for non-ferrous metals, such as the production of printed circuit boards, aluminum plate processing. For the steel etching accuracy is low, poor reliability, the process is more complex and difficult to operate. High-precision parts, are generally used machine engraving, but the high cost of workers demanding technical level, prone to human error. Using photographic etching process, the convex and concave boundaries of its processing surface is very clear, resolution of 0.15mm or so, fully meet the design requirements. Photographic etching process is divided into two major parts: the production of the bottom plate and parts of the etching. First, the desired pattern (factory mark, trademark, font, number, arrow, etc) is made into the desired master by the photolithography technique, and then the dry film is attached by using a water-soluble photoresist dry film After a certain treatment of the heating parts, cooled at room temperature after exposure, development, etching and to the film processing, cleaning parts surface after the formation of the required convex and concave patterns. Because of the higher technical requirements of photolithography, I plant