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彩钢夹芯板出现色差问题的原因

来源:http://www.jnhscg.com 日期:2023-01-21

随着人们环保意识的提高,彩钢夹芯板因其重量轻、隔热、色彩鲜艳、安装灵活快捷等特点也越来越受欢迎。由于厂家制造工艺不同,表面会出现色差,如何解决这种情况?济南彩钢夹芯板厂为您讲解。

With the improvement of people's awareness of environmental protection, color steel sandwich panels are becoming more and more popular because of their light weight, heat insulation, bright colors, flexible and fast installation and other characteristics. Due to the different manufacturing processes of manufacturers, the surface will have color difference. How to solve this problem? Jinan Color Steel Sandwich Panel Factory will explain to you.

一,基质。不同尺寸的基体锌花会在晶界形成许多小凹坑,这会影响板表面的色差,尤其是浅色。选择无锌或小花基质。

1、 Matrix. The zinc flakes of different sizes will form many small pits at the grain boundary, which will affect the color difference of the plate surface, especially the light color. Choose a zinc-free or small-flowered substrate.

二,油漆。由于涂料搅拌不均匀或不同桶型涂料粘度差异较大,涂料在物料托盘中从入口侧向回流口方向延伸,彩钢夹芯板彩带。此外,更换油漆颜色时,特殊比例是颜色对比度大,因为清洗不干净,造成色差污染

2、 Paint. Due to the uneven mixing of the coating or the large difference in viscosity of the coating of different barrel types, the coating extends from the inlet to the reflux port in the material tray, and the color strip of the color steel sandwich plate. In addition, when changing the paint color, the special proportion is that the color contrast is large, because the cleaning is not clean, resulting in color difference pollution

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三,薄膜厚度。膜厚的稳定性对彩钢夹芯板的色差有很大影响。膜厚调整主要包括:涂布粘度、调整胶辊和涂布辊之间的间隙、改变涂布辊和胶辊的辊速、调整涂布辊和带钢支撑辊之间的压力。

3、 Film thickness. The stability of film thickness has a great influence on the color difference of color steel sandwich panel. The film thickness adjustment mainly includes: coating viscosity, adjusting the gap between the rubber roller and the coating roller, changing the roller speed of the coating roller and the rubber roller, and adjusting the pressure between the coating roller and the strip steel support roller.

四,化学涂层处理。涂膜工艺不当,导致涂膜过厚,干燥板温度不足,或涂膜辊体损伤,干燥后形成黄色斑块,涂膜板色差大,尤其是浅色明显。

4、 Chemical coating treatment. Improper coating process leads to too thick coating film, insufficient drying plate temperature, or damage to the coating roller body, which forms yellow patches after drying, and the color difference of the coating plate is large, especially the light color is obvious.

五,冷却水。雾化冷却,冷却水未及时更换,炉气中挥发性有机溶剂冷却凝结后,冷却水经挤压辊挤压后带到板面,造成板面色差。在生产过程中,冷却水应适当保持溢流,以便冷凝水挥发分能及时排出溢流,避免板面色差。

5、 Cooling water. For atomization cooling, the cooling water was not replaced in time. After the volatile organic solvent in the furnace gas was cooled and condensed, the cooling water was brought to the plate surface after being squeezed by the extrusion roller, resulting in the color difference of the plate surface. During the production process, the cooling water should be properly kept overflowing, so that the condensate volatiles can be discharged in time to avoid the chromatic aberration of the plate surface.

六,PMT。PMT代表涂层完好固化时带钢所需的彩色钢板的峰值温度。PMT的稳定性对色板的色差有很大影响。PMT调整主要包括:带钢规格变化会引起PMT变化,局部温度高或低会影响PMT,基板厚度不均匀PMT变化,炉温季节性变化和PMT变化。

6、 PMT. PMT represents the peak temperature of the color steel plate required for the strip steel when the coating is intact and cured. The stability of PMT has a great influence on the color difference of color plate. PMT adjustment mainly includes: change of strip steel specification will cause PMT change, local high or low temperature will affect PMT, uneven substrate thickness PMT change, seasonal change of furnace temperature and PMT change.

彩钢夹芯板出现色差问题的原因就从以上6个方面来讲解完毕了,您对此有怎样的疑惑或者问题就来我们网站http://www.jnhscg.com进行咨询吧!

The reasons for color difference of color steel sandwich panels are explained from the above six aspects. If you have any doubts or questions about this, please come to our website http://www.jnhscg.com Consult!


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