The flat metal sign is mainly a kind of metal sign with explanatory purpose by dissolving different colors into the adhesive film by using the method of photosensitive exposure, so that it is displayed on the metal plate by the method of development. Metal signs are mainly based on raw materials such as copper, iron, aluminum, zinc alloy, lead-tin alloy, etc., through stamping, die-casting, etching, printing, enamel, imitation enamel, baking varnish and other processes to make nameplates, badges, badges, medals, keys Buckles, cap badges, hat clips, wallets, commemorative coins, craft signs, cufflinks, photo frames, mobile phone straps, tie clips, belt straps, hang tags, bottle openers and other craft accessories, as well as various metal signs, metal nameplates, etc. Various metal sign products of different categories. What are the main materials used for signs? The materials used in the production of signs are: 1. Non-metallic materials: acrylic, two-color board, PVC, plexiglass, wood and other signs. 2. Metal material: stainless steel, iron, zinc alloy, brass, aluminum plate and other signs. 3. Ceramic material: pure ceramics, cermet composite glass. The specific process flow and formula of the following metal flat signs that are frequently encountered (the process flow of flat signs): flat exposed aluminum signs: use photosensitive plate making methods, Put different pigments into the glue film to make the text and patterns appear on the metal plate, so as to achieve the metal nameplate with explanatory significance. 1) Blanking: The size of the wool is generally larger than the size of the plate (above 5mm), and the surface of the board is smooth and free of pits. 2) Pre-treatment: ①polishing ②wire drawing ③treatment④oxidation and other methods. 3) Water sealing: After degreasing and film removal, the processed board should be quickly immersed in water without contact with air. 4) Gluing: the configuration of glue. Glue: 200-230g Water: 1000ml, boil for 2 hours to fully dissolve the glue. When the temperature drops to 30-50℃, add 25-30g of photosensitizer (ammonium bibutyrate) and spread the glue evenly on Dry the metal plate for later use. 5) Exposure: The SB750 vacuum exposing machine can be used for photosensitive exposure. After the lamp is 60-90cm and the time is 40-80 seconds, it is developed in warm water for 1 minute and put in the color solution for dyeing. 6) Gloss retention: After the fully dyed brand is dried, apply gloss retention paint with a brush or spray gun (usually use eye brand baking varnish or non-baking gloss retention paint). 7) Cut into. Flat signs are generally used for indoor products, small household appliances and equipment that are not affected by severe weather. The advantages are simple plate-making process, fast speed, timely delivery, and low defective product rate. The disadvantage is that it is easy to fade after exposure to the sun and rain. No outdoor signs can be made. The above is all JunQi's sharing about the materials and production process of signs. JunQi specializes in the production and sales of belt buckle hardware, belt buckle accessories, luggage hardware, luggage hardware accessories
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