关于彩钢卷的质量问题汇总
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彩钢卷广泛应用于社会，在新建建筑中发挥着重要作用。然后出现以下问题：
一。颠簸
特点：由于钢带的外部冲击，板的表面出现凸凹，有的有一定的距离，有的没有。
原因：1。涂布时辊内混入异物。2.板材在装订过程中的装订标记。三。复卷时的外部冲击。
2.边缘气泡
特点：两面涂刷，干燥后出现气泡。
原因：原材料毛边沾油漆，两边有裂纹。
三。麻点
特点：涂层后，部分或全部表面的异物或灰尘从外面混入，有米粒状突起。
原因：1。其他涂料或其他公司的涂料混合在涂料中。2.涂层中混入异物。三。预处理时水洗不良。
四。弯曲不良（T形弯曲）
特点：钢材180度弯曲试验时，加工部位涂层开裂脱落。
原因：1。前处理过多。2.涂层太厚。三。过度烘烤。四。较低的涂层与涂层制造商不同，或者稀释剂使用不当。
5个。硬度差（铅笔硬度）
特：用画笔在涂层表面划伤，擦拭后在表面留下划伤。
原因：1。炉温低，涂层固化不足。2.加热条件不当。三。涂层厚度大于规定厚度。
这是今天彩钢卷的介绍。如果您想了解更多，请访问我们的网站。
Color steel coil is widely used in society and plays an important role in new buildings. Then the following problems occur:
1. bumps
Features: due to the external impact of the steel strip, the surface of the plate appears prominent or concave, some with a certain distance, some without.
Causes: 1. Foreign matters mixed in the roller during coating. 2. Binding marks of sheet products during binding. 3. External impact during rewinding.
2. Edge bubble
Features: paint on both sides, after drying, bubbles appear.
Causes: raw materials with burr stained with paint, cracks on both sides.
3. pock marks
Features: after coating, some or all surfaces of foreign matters or dust mixed in from the outside have rice grain like protrusion.
Causes: 1. Other kinds of coatings or coatings of other companies are mixed in the coating. 2. Foreign matters mixed in the coating. 3. Poor water washing during pretreatment.
4. Poor bending (T-bend)
Features: during the 180 degree bending test of steel, the coating on the processing part cracked and peeled off.
Causes: 1. Too much pre-treatment. 2. The coating thickness is too thick. 3. Over baking. 4. The lower coating is different from the manufacturer of the coating, or the thinner is not used properly.
5. Poor hardness (pencil hardness)
Features: draw a scratch on the coating surface with drawing pencil, and leave a scratch on the surface after wiping.
Causes: 1. Low furnace temperature, insufficient coating curing. 2. Improper heating conditions. 3. The coating thickness is thicker than the specified thickness.
This is the introduction of color steel coil today. If you want to learn more, please visit our website.
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