Coffee machine liner spray processing, spraying sand hung hardware appliances (certified), spray processing provided by the Dongguan City, Sha Hong Hardware Electric Co. Dongguan City, Sha Hong Hardware Appliance Co., Ltd. (www.dgshahong.com) is specialized in the "spray processing, electrical coating, metal spraying, shade spraying, roller coating, ceramic coating" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Sha. The first is the protective paint aim to extend the life of the workpiece, followed by decorative, to achieve beautiful and pleasant. Once again, special purpose, in order to achieve specific properties. Such as: sound insulation, thermal insulation, fire protection and so on. Depending on the purpose and requirements of the painting, there are several layers of paint coating composition, including primer, putty, paint varnish and so on. Underlying paint: direct contact with the workpiece to be painted body lowermost grid cake coating spray processing, the role of the primer layer is to strengthen the adhesion between the coating and the body, strengthen the protective properties of the coating. In addition to black metal before loading should phosphate, non-ferrous metals should be oxidized before painting. Putty: For rough body, using a putty has many shortcomings, such as construction problems, reduce the binding force of the body, such as coating. The main purpose is to increase the gloss topcoat layer coating processed products, for the coating of the outermost layer. Pretreatment pretreatment process quality directly affects the quality of the pot powder coating spray processing, pre-treatment is not good, resulting in shedding coating titanium clips black spray processing, bubbling phenomenon. Therefore, the first task must be stressed. For sheet metal stampings chemical pre-treatment method can be used. Ie: go to rust oil → → washing → phosphate (or purified) and so on. Most surface rust or thicker workpieces, using sandblasting, shot blasting and other mechanical methods to rust, but after a mechanical descaling should ensure that the workpiece surface is clean and can not scale. Putty. Scraping the workpiece defect extent conductive putty, sanded smooth after drying, you can be the next procedure. Protection (also known as shield cover). If some parts of the workpiece does not require a coating before preheating can be covered up to protect glue, etc., in order to avoid the spray paint. Preheat. Generally do not need to warm up. If a thicker coating layer is required, the workpiece can be preheated to 100 ~ 160 ℃, which can increase the coating thickness.