Screen printing signs factory introduces corrosion metal sign the five kinds of surface treatment

Screen printing signs factory introduces corrosion metal sign the five kinds of surface treatment of corrosion metal label is also called the etching label. Mainly through mask, etching processing check three-step process making of braille metal plates or concave word metal plates, the surface - - - - - - - > screen printing plate factory introduces corrosion metal sign the five kinds of surface treatment of brands is also called the etching plate corrosion of metal. Mainly through mask, etching processing check three-step process making of braille metal plates or concave word metal plates, it also has a variety of surface treatment effect. Etched plates also called corrosion plates. Primary check through mask, etching processing 3 processed making of braille metal plates or concave word metal plates. Now etching technology has very mature and general factory can independent operation. Under the expected, according to the requirements of drawings, Page size) The size of the around with no less than 5 mm above the burrs. Cutting board with 720 type pedal plate shears, requirement surface level off, without margin. And then the corrosion sign of surface treatment. Metal corrosion sign surface treatment: ( 1) Mechanical polishing: in 2. 2 - 4 kw polishing machine, mechanical polishing of woollen cloth round of 300 - use Motor speed generally 2000-350 3000 r/min. ( 2) Alkali treatment: with a 10 - Sodium hydroxide in 65-15% Will metal plate to boil 10-85 ℃ water solution For 30 seconds, and then remove with clean water, immersed in a 5% weight inscription acid in aqueous solution. ( 3) Powder processing method: use a flat brush dips in old pink, Double pink) Will board evenly brush all ears, cross the crossover to until to remove dirt, and removing the effect of oxygen skin, and then closed with 5% potassium dichromate solution. ( 4) Wire drawing processing method: use mechanical or manual drawing method, the metal plate wire drawing processing, metal surface in order to achieve regeneration effect. ( 5) Some paint baking method. According to design requirement of corrosion of sign, and then in the above point paint ( According to the requirements on different color) , zui before baking. Screen printing label factory introduce what is a metal screen printing label? Metal screen printing signs refers to the resin type of ink, after the prophase processing of silk screen printing on the panel, and then to keep the light, laminating process can be made into all kinds of exquisite color printing metal sign. Metal printing plate making technology, it is an aspect of screen printing technology. Now fill all kinds of screen printing signs have been widely used in electronics and home appliances products, especially on the surface of all sorts of signs adopted new decoration process, after it in the form of delicate and elegant, colorful decorative effect displayed in front of people, many times to improve the value of the goods and competition ability. In manufacturing process of metal signs, decisive is the silk screen printing and printing substrates before processing technology and key points of printing and screen printing ink.

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