Tiegui pipeline equipment

Tiegui line equipment Tel: 18539592850 Website: www.douyashuo.com powder coating paint industry is developing rapidly in recent years of new technologies. It is characterized by green energy, high efficiency, rich and beautiful colors, excellent physical and chemical properties of the coating, and now almost all over the appliance, automotive aluminum and other industries, is the future trend of coating industry. In the aluminum powder coating process, the coating particles and defects are common causes of a more complex problem. In this paper the author a few years of work experience, the causes of powder coating particles are aggregated and control measures, and colleagues discuss the exchange. 1. Tiegui powder coating process line equipment process is as follows: preflight profiles → degreasing → washing → Plasma washing → → washing → chromium plasma control water washing → → → drying → purge spray powder coating curing → → test → packaging. 2. glitch causes large particles coated granules and control measures 2.1 profiles itself glitch caused major scale is not divisible rod extrusion, extrusion slightly faster lead cucumber sting, sting was feeling when hands touch hands. A black carbon particles mixed with ferrosilicon and silicon mainly due to insufficient heating, resulting in rod internal components are not completely evenly spread, so that such defects occur after aluminum extrusion. Most of these particle size of about 0.1 ~ 0.3mm, spraying pre-treatment can not be removed, it is necessary surface treatment stage pre-treatment tank alkaline etching treatment. Control measures to strengthen the aluminum substrate production process control, in order to avoid such problems. 2.2 Tiegui line equipment particulate aluminum profiles cavity caused by sawing aluminum scrap aluminum extrusion cavity did not blow clean debris, washed into the trough, in the bath agitation cycle, adhesion dispersed in various profiles surface, at the same time chromium chromium film produced integrally attached tightly chromium film, purge can not afford to cause the coating to highlight larger particles (0.3 ~ 1.0mm large particles). Most of these particles are flaky, with a rasp file can be found off the particles during the silver particles wrapped aluminum scrap.