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热门关键词: 高耐候彩板| 氟碳彩板| PE聚酯彩板

阳泉彩钢板现货供应_阳泉彩钢板多少钱一吨_天物
分析彩涂钢板常见的质量问题
 
唐山天物彩板专注彩板16年——阳泉彩钢板现货供应_阳泉彩钢板多少钱一吨   更多信息请拨打网站上方电话咨询了解

一。彩钢板耐溶剂性差
 
特点:丁酮擦去少许油漆。
 
原因:1。烘烤温度不符合要求。2。涂料的固化是有问题的。三。前处理清洗不干净。
 
二。彩钢板漏涂
 
特点:未上漆的面漆。
 
原因:1。边缘光洁度不涂,底板不好或涂辊与大后辊间压力不足。2。板表面的内部光洁度没有涂层。底漆冷却后,板面有水或其它异物。
 
三、彩钢板弯曲不良(T弯)
 
特点:钢材180度弯曲试验时,加工部位出现裂纹和涂层剥落。
 
原因:1。过度掌握预处理。2。涂层厚度太厚。三。过度烘烤。4。底涂涂料与涂料生产厂家不同,或使用稀释剂不当。
 
四。彩钢板硬度差(铅笔硬度)
 
特点:画笔用于涂膜表面硬刮,涂擦后在表面留下划痕。
 
原因:1。炉温低,涂层固化不充分。2。加热条件不当。三。涂层的厚度比规定的厚度厚。
 
这就是彩涂钢板常见的质量问题的介绍。
one. Poor solvent resistance
 
Characteristic: Butanone wipe a little paint off.
 
Causes: 1. Baking temperature did not meet the requirements. 2. The curing of coatings is problematic. 3. The cleaning of pretreatment is not clean.
 
Two. Leakage coating
 
Features: Unpainted topcoat.
 
Reasons: 1. The edge finish is not coated, the base plate is not good or the pressure between the coating roll and the big back roll is insufficient. 2. The interior finish of the board surface is not coated. After the primer is cooled, there is water or other foreign matter on the board surface.
 
there. poor bending (T-bend)
 
Characteristic: During 180 degree bending test of steel, cracks and peeling of coating occur in the processing part.
 
Causes: 1. Excessive mastery of pretreatment. 2. Coating thickness is too thick. 3. Overbaking. 4. Undercoated paint is different from the manufacturer of coated paint, or the use of thinner materials is improper.
 
four. Poor Hardness (Pencil Hardness)
 
Characteristic: Drawing pencil is used to scratch hard on the coating surface, leaving a scratch on the surface after erasing.
 
Causes: 1. Low furnace temperature and insufficient curing of coating. 2. inappropriate heating conditions. 3. The thickness of the coating is thicker than the prescribed thickness.
 
This is the introduction of common quality problems of color coated steel plate.