Causes shrinkage during spraying paint spraying line analysis produced during the analysis, there are two reasons for shrinkage point factors: First, the paint itself causes. Second, the coating line coating process causes. First, the reasons for the paint itself, are the following: 1. In the manufacture of the coating process, leveling agents, defoamers and other additives used in an amount insufficient or non-uniform dispersion, resulting in some sprayed onto the surface of the powder particles contain feed leveling agents or defoamers. 2. As the coating equipment dirty, causing the paint production process, the deployment of uneven or contaminated with impurities. 3. The use of compressed air to the oil and water is not completely removed by plasma spraying, the water and oil into the paint spraying automatic spraying machine, but also make the coating produced craters. To solve these problems, in the paint production process, we must process demanding operation is performed, to avoid these problems. Energy saving during the spraying process impurity energy saving is that we should always adhere cause spraying, reduce environmental pollution problem is we have to improve the problem. Painting equipment also has been insist on doing so, he has been insisting for the environment to make a great contribution. When using electrostatic spray equipment for spraying operations, often because of a variety of impurities resulting in spraying operations can not operate normally when using electrostatic spray equipment for spraying operations, often because of a variety of impurities resulting in spraying operations can not function properly. Spray rubber, sand hung hardware appliances spraying, spraying sand by Dongguan Hong Hardware Electric Co. Dongguan City, Sha Hong Hardware Appliance Co., Ltd. (www.dgshahong.com) is an industry leader in Dongguan, Guangdong, spraying equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Hong Hardware Appliance spraying sand leadership with the staff warmly welcome all inquiries negotiations to create a sand painting hung Hardware Appliance better future.