粉体、液体涂装线

一、粉体、液体涂装线：
预处理设备主要分为物理式、化学式。
1.物理式：（1）出去附着于钢板表面的杂质，用稀释剂除去油脂等污垢。
          （2）如果硫酸盐或腐蚀性盐类，应以清水洗净，以压缩空气吹干。
          （3）在钢板预处理流水线上，一抛丸或喷砂除锈方法将氧化皮、铁锈及其他杂质清除干净，然后用真空吸尘器或经净化器的压缩空气将刚才表面清除干净。

2.化学式：浸渍式、喷射式、浸喷结合式、喷—浸—喷相结合式。主要由槽体、槽液加热系统、通风系统、槽液搅拌系统、磷化除渣系统、油水分离系统等组成。其中，磷化除渣和油水分离装置是关键系统，磷化除渣有沉降法、斜板沉淀法、袋式过滤法、板框压滤机等常用方法。油水分离主要有：吸附法、超滤法、热油分离法和离心法等。  

重要关键词：粉体、液体涂装线

Powder, liquid coating line

A, powder, liquid coating line:

Pretreatment equipment is mainly divided into physical, chemical formula.

1. Physical type: (1) go out on the surface of the adherent Yu Gangban impurities, use thinner to remove oil and dirt.

(2) if the sulfate or corrosive salts, should rinse, blow dry with compressed air.

(3) on the steel pretreatment line, a shot or sandblasting derusting method will scale, rust and other impurities removed, and then use a vacuum cleaner or by compressed air purifier will just surface clean.

2. The chemical formula: dip type, injection, combined type, combination type spray, dip, spray. Mainly by the bath tub, bath heating system, ventilation system, mixing system, phosphate slag system, oil water separation system, etc. Among them, phosphate slag and oil-water separation device is the key system, phosphate slag have settlement, of inclined plate precipitation, bag filter, commonly used methods, such as plate and frame filter press. Oil-water separation mainly include: adsorption method, ultrafiltration method, hot oil separation and centrifugation.