The screen vacuum printing machine is equipped with dust-free, oil-free, silent vacuum pumping, and high-tension UV-resistant vacuum board. The vacuum speed is even and fast, and the board and the film are quickly and evenly connected. It is suitable for high-precision lines and high density. Direct or indirect screen exposure and clean room environment of the network cable, this article will introduce you how to install the transformer of the printer.
Prepare the work before printing. Preparation before printing is the basis for ensuring the quality of printing and printing. Therefore, before the printing work is carried out, it is necessary to carry out a complete and careful inspection of the printing machine to ensure that the appearance thereof is lubricated, flat and free of dirt, scratches and the like. In addition, it is necessary to keep the stencil of the printing machine to a certain extent, the film is free from dirt and the transparent glass plate is clean. The printing machine should be able to obtain a vacuum of 80 kPa (650 mmHg) within 60 s; the vacuum of the printing machine should not be reduced by 20 kPa (150 mmHg) 5 minutes after the power of the printing machine is turned off.
The uniformity of the light source of the printing machine is required to be above 86% (using precision measuring instruments). Use a 30% dot film film to expose a PS plate. After development, measure with a densitometer. The error between the middle and the four peripheral angles is generally less than 2%, so that it will not appear when printing large-area color blocks. Color difference.
The printing machine has the advantages of uniform illumination intensity, stable light quantity control, stable source wavelength, high vacuuming, long lamp life, etc. It is suitable for screen exposure of high-precision lines, dots and high-density network cables. In the above, the computer simulation test was adopted, the best angle was selected, and the imported reflective material from Germany was selected, and the light intensity was uniform.
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