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知道这8个彩涂板技术 一年快速赚到100万太容易了

发布者:唐山天物彩板有限    发布时间:2020-06-24 14:46

知道这8个彩涂板技术 一年快速赚到100万太容易了

 
一、弯曲性不良(T弯)
特点: 
彩钢卷厂家钢材弯曲180度试验时,加工部位的涂层发生龟裂及涂层剥离。
发生原因: 
1、前处理的掌握量过多。 
2、涂层厚度过厚。 
3、过度烘烤。 
4、下涂涂料同上涂涂料的制造厂家不同,或稀料的使用不当。 
二、硬度不良(铅笔硬度) 
特点: 
彩钢卷厂家用制图铅笔用力在涂层表面划一道,擦去后表面留下一道划痕。
发生原因: 
1、炉温低,涂层固化不充分。 
2、加热条件不适当。 
3、涂层厚度比规定的厚。 
三、凸点 
特点: 
彩钢卷厂家由于钢带受到外部的冲击,板表面出现突出或凹陷,有的有一定的间距,有的没有。
发生原因: 
1、涂装时辊上有异物混入。 
2、薄板产品在捆扎时的扎痕。 
3、倒卷时受到外部冲击。 
四、边部气泡 
特点: 
两侧沾有涂料,经烘干,出现气泡。 
发生原因: 
原材有毛刺沾有涂料多,两边出现缝隙。 
五、 麻点
特点: 
从外部混入的异物或灰尘在涂装后,部分或全部表面,有米粒样的突出。 
发生原因: 
1、涂料中混入其它种类或其它公司的涂料。 
2、涂料中有异物混入引起。 
3、前处理过程中水洗不良。 
六、橘皮 
特点: 
已干燥的表面涂层象橘子皮一样粗糙,不均匀。 
发生原因: 
1、湿膜过厚。 
2、涂料的黏度较高时。
 
1、 Poor bending (T-bend)
 
Characteristic:
During the 180 degree bending test of steel, the coating on the processed part cracked and peeled off.
Cause: 
1. The amount of pre-treatment is too much.
2. Coating thickness is too thick.
3. Over baking.
4. Te lower coating is different from the manufacturer of the same coating, or the use of thinner is improper.
2、 Poor hardness (pencil hardness)
Characteristic: 
Use a drawing pencil to make a scratch on the coating surface, and leave a scratch on the surface after wiping.
Cause: 
1. The furnace temperature is low, and the coating is not fully cured.
2. Improper heating conditions. 
3、 The coating is thicker than specified.
Three, bump
Charateristic: 
As the steel strip is impacted by the outside, the surface of the plate is protruding or concave, some of which have a certain distance, some of which are not.
Cause: 
1. Foreign matters mixed in the roller during coating.
2. Binding marks of sheet products when binding.
3. External impact during rewinding.
4、 Edge bubble
Characteristic: 
Paintis stained on both sides, and bubbles appear after drying.
Cause:
 
 
 
Raw material has burr and coating, and cracks appear on both sides.
5、 Pockmarks
Characteristic: 
After coating, some or all surfaces of foreign matters or dust mixed in from the outside have rice like protrusion.
Cause: 
1. Paint mixed with other kinds or company's paint.
2. Foreign matters mixed in the coating.
3. Poor water washing during pretreatment.
Six, tangerine peel
Characteristic: 
The dried surface coating is rough and uneven like orange peel.
Cause: 
1. Wet film is too thick.
2. When the viscosity of the coating is high.
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