Metal flat sun signs

李雅婷

   metal crafts   Metal flat sun signs is the use of sensitive methods of drying plates, different colors into the film which, through the method of developing significantly on the metal plate, thus achieve the purpose of illustrative significance of a metal sign. The following are some of our regular contact with the metal flat sun signs specific process and formula ( flat sun signs process ):
   1) feeding: blank size is greater than the general plate size (5mm ), surface smooth, no pit.
   2) processing: polishing the drawing and processing the oxidation methods.
   3) water closed: good processing board, after degreasing, in addition to membrane after immersion in water is not available, rapid and exposed to the air.
   4) glue: adhesive solution configuration. Glue: 200-230: 1000ml grams of water, boiling water 2 hours for the glue is fully dissolved, so that the temperature to 30-50 C join photosensitizer ( ammonium bicarbonate ) 25-30 grams after the glue liquid is evenly coated on the metal plate, drying stand.
   5) print: can use SB750 type vacuum drying machine for photographic print layout, light 60-90cm time 40-80 seconds after taking, placed in lukewarm water 1 minutes into the color liquid dyeing.
   6) and light: after full dyeing brand, cool and dry, with a brush or spray paint and varnish ( generally with the eyes licensing paint or for baking and varnish ). Flat sun signs are generally used for indoor supplies, small appliances and a harsh climate impact device. Advantages of plate making process is simple, fast, prompt delivery, scrap rate and low cost. Disadvantages are the sun and rain, easy to fade. Do outdoor marking.
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