1. Figure formation
There is no doubt that etching images and text content on the blank metal board. First of all, the image and text content should be formed (or transfer to the metal plate) in a certain material and method. Usually, images and texts can be formed in the following ways:
Metal Engraving is designed on the computer to design the required graphics or text, and then use the Metal Engraving machine to carve the graphic on the non -dry glue, paste the carved flower on the blank white metal board to remove the self -adhesion of the tolerance parts. This method is still widely used in exposing metal texture and then etching. Its advantage is that it is simple, low in cost, and convenient operation. T is limited: the minimum text of the general engraving writer is about 1 cm, and the smaller text will be deformed and unavailable. Therefore, this method is mainly used to make the Metal Tag in large graphics.
1. Photo Chemistry Etching
① Direct method: First use the graphic content into black and white film (film), and then apply a layer of Photo Chemistry Etching ink on the blank metal plate, and then dry. After drying, cover the film on the metal plate and put it in a dedicated exposure machine (exposed on the printing machine, and then appear in the special display. , Due to the real surface of the metal. Due to the optical reaction, the exposed part of the light -sensitive resistance ink forms a layer of viscosity, which is firmly attached to the Trise to protect the metal surface with metal plates from corrodes.
② indirect method: indirect method is also called silk seal. First of all, make the graphic content into a screen printing version, and then print an anticorrosive ink on the metal version. Use this method to form an anticorrosive layer with graphics on the metal plate, and then dry, etched and polished. Essence Essence Principles of direct method and indirect method: Direct method has high graphics accuracy and quality, simple operation, but in large quantities, the efficiency is low and the cost is higher than the indirect method. The graphics accuracy of the indirect method is poor, but the cost is low and the efficiency is high. It is suitable for a lot of use.
2. Metal etching
The purpose of etching is to recessed the places with pictures and text on the metal board (vice versa, so that the label shows the uneven effect, one is to be beautiful, and the other is to make the pigments filled in the graphic below the label plane, so as not to wipe off frequently. In color, there are three main types of etching methods: electrolytic etching, chemical etching and laser etching.
3. Graphic color (color fill and Baking Varnish fill)
The purpose of color is to make a sharp contrast with the layout of the label and enhance the sense of eye -catching and beauty. The main method of coloring is as follows:
1. Hand -colored (commonly known as Baking Varnishing, brushing, or Baking Varnishing: fill the depression after the etching carved with needles, brushes, brushes and other tools. This method used to be used for badge and enamel process. , Need proficient work experience. But at present, this method still occupies a place during the identification process, especially those with trademark logos and trademarks, and they are very close to each other. In this case, in this case, Handmade coloring is a good choice.
2. Baking Varnish: Tags are used as anticorrosive protective film. After etching, the label can be cleaned and dry, and then Baking Varnish on the sunken pictures and text. The equipment used in spray Baking Varnish is air machine and spray gun, but self -spray Baking Varnish can also be used. After the Baking Varnish is dry, you can tear off the adhesive protective film so that the excess Baking Varnish sprayed on the adhesive will be removed naturally. The label of the protective layer is based on the light -sensitive anticorrosive ink or silk -printed anticorrosive ink. Before coating, the protection ink must be removed. Because the ink protective layer cannot be torn off like the self -adhesive protective layer, so the ink must be removed first. The specific method is as follows: After the label is etched, first use the potion to remove the anticorrosive ink → washing → dry, and spray the place where the color required (that is, the place with pictures and text) with a spray gun. Of course, the Baking Varnished Baking Varnish does not need to be sprayed, which requires the next process: scraping and polishing Baking Varnish.
The Baking Varnished Baking Varnish is the sharp things on the surface of the sign on the surface of the sign on the surface of the sign with sharp things such as metal blades and hard plastic. The Baking Varnish is to grind the excess Baking Varnish with sandpaper. Generally, Baking Varnish and Baking Varnish are used. The Baking Varnishing method is much more efficient than the manual filling, so it is still used in large quantities, which is the most common method for the application industry. However, because the general Baking Varnish is diluted with organic solvents, it is serious to the atmospheric pollution when spraying Baking Varnish, and the staff is even more harmful. What is even more annoying is that the later Baking Varnish and Baking Varnish are very troublesome. It will scratch the Baking Varnish film, and then it must be repaired by hand, and after Baking Varnishing, it is necessary to polish the metal surface, covered with light, and grilled light, so the industry people feel a headache and helplessness.
3. Electroplating color: The working principle is that the coating particles with charge is under the action of the current to the opposite electrode swimming (like swimming, so it is called electrophoretic. The cation coating particles move to the cathode workpiece, the pineral coating particles move to the anode, and then deposit on the workpiece, forming a uniform and continuous coating film on the surface of the workpiece. Electricity coating is a special coating film formation method. It uses environmentally friendly type Electric Baking Varnish, non -toxic and harmless, use water as a diluent, no need to spray Baking Varnish, Baking Varnish, Baking Varnish, and Baking Varnish. Fast and high efficiency, a batch can be taken every 1 to 3 minutes (several to dozens of pieces, the signs of the electro -swimming Baking Varnish are cleaned and baked, and the Baking Varnish film is uniformly shiny, and it is very solid and not easy to fade. The cost of Baking Varnish material cost. Low low, it takes about 0.07 yuan for every 100cm2. What's more exciting is that the problem of coloring after the lack of mirror metal signs that has troubled the sign of the sign in the past is easily solved by it! , Then scrape and Baking Varnish, but mirror metal materials (such as mirror stainless steel plates, mirror titanium gold plates and other light mirrors, if Baking Varnished, can not be scraped or grinded, which sets huge obstacles for people to make mirror metal signs! It is also the main reason why high -end and beautiful mirror metal signs (small graphics have always been common.
Asset Metal technology company is a focusing on CNC machining, metal stamping, metal(chemical) etching and surface treatment of OEM/ODM metal parts Processing.
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