在当代社会，科技不断进步，社会发展越来越快，这些都带动了静电喷塑设备的发展，喷塑流水线的发展带给了大家很大的便利，但是静电粉末在喷涂中经常出现一些缺陷，影响产品的外观质量及使用性能。
In contemporary society, the development of science and technology, the society is developing faster and faster, these have led to the development of electrostatic spray equipment, spray line development gives everyone a great convenience, but the electrostatic powder in the spraying often appear in some defects, affecting the appearance quality and performance of products.
缺陷名称：粗砂。
Defect Name: coarse sand.
成因分析：粗砂是指砂纹粉末涂层表面较粗糙的现象，主要原因有：静电喷塑时型材边缘或尖端放电，电压偏高；喷枪与型材距离偏小，电场强度过大；挂具导电不良导致上粉不好或反向电离严重；粉末质量较差造成固化后涂层粗糙。
Cause analysis: refers to the phenomenon of coarse grit powder coating surface is rough, the main reasons are: electrostatic spray section edge or tip discharge, high voltage; gun and profile distance is small, the electric field strength is too large; the poor conductivity of lead powder on the rack or reverse ionization is serious; the poor quality caused by rough powder coating after curing.
控制措施：严格控制静电压、喷枪与型材距离等，执行喷粉工艺要求；挂料前，应将挂具与链条、型材之间的节点充分打磨以保证导电良好；严格控制粉末涂料质量。
Control measures: strict control of static voltage, spray gun and profile distance, perform spraying process requirements; hanging before, should be between nodes and hanging chain, to ensure the full profile grinding of good conductivity; strictly control the quality of powder coatings.
粉末涂料这几年发展的空间很大，随着人们环保意识的加强，以及成本降低的要求，粉末涂装涂料是发展的趋势。静电喷涂设备发展的现状，它本身存在一些不足，但是随着科技的不断进步他将会得到越来越快的发展，带给大家便利。
Powder coating in recent years, the development of a large space, with the strengthening of environmental awareness, as well as cost reduction requirements, powder coating is the development trend. Electrostatic spraying equipment development status, it itself has some shortcomings, but with the continuous progress of science and technology, he will get more and more rapid development, to bring convenience to everyone.