chemical etched signage, also known as corroded metal signs, are a type of sign that is processed and made on the metal surface by chemical corrosion. The production process mainly includes cutting, preparing masks, etching, post-processing and other steps, which can be made into metal signs with convex or concave characters. This type of sign is durable and has a wide range of usage scenarios, such as machine tool nameplates, signboards, road signs, etc.
When making chemical etched signage, it is necessary to cut them according to the size of the layout required by the drawing, and ensure that the surface is flat and there are no burrs around. Then, the production is completed through alkali treatment, corrosion, film fading, painting and coloring, polishing and varnishing. Among them, there are many processes for mask preparation, such as etching the superior version, silk screen printing, photosensitive, and lettering film.
In addition, the material of the chemical etched metal sign is generally composed of three parts: substrate, chrome plating layer and adhesive layer. The current causes a chemical change between the auxiliary electrode and the positive electrode to form a uniformly distributed carbon conductor, which has the function of preventing corrosion and can increase aesthetics. In addition, mechanical grinding and polishing and chemical conversion film deposition are also important technical means in the production of metal signs.
In short, chemical etching signs are a kind of handicraft with unique charm and practical value, and its production requires exquisite skills and experience. For more information, it is recommended to read books related to metal sign production or consult professionals.
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