在使用过程中，彩涂板会接触到空气中的杂质，需要长期定期清洗。我们经常使用两种方法，即清洗和脱脂处理和化学清洗剂。让我们看看下一期。清洗脱脂处理主要是利用工业化学清洗液的溶解、皂化、乳化、潮湿、浸泡和机械作用，去除基材表面的油污和杂质颗粒。

目前，生产线上所用的化学清洗液基本上都是由络合剂、表面活性剂、***、***、多磷酸等成分组成，是碱性溶液。清洗除油效果主要取决于清洗液浓度、温度和钢带清洗时间。在清洗过程中，要注意清洗液的浓度和温度。

清洗液浓度低，基体表面油污清洗不干净，导致后边缘涂层处理存在缺陷，进而影响涂层质量；镀锌板中锌和铝浓度高，属于两种金属，而锌、铝涂层在热碱溶液中只是由芯盐组成，形成严重的腐蚀，进而影响后沿化学涂层的效果。

化学清洗剂通常含有表面活性剂，各种表面活性剂发挥作用的温度各不相同。温度过高会降低表面活性剂的稳定性，降低清洗液对油污的去除能力。如果温度太低，皂化反应速度太慢，不能消除油污。同时，会产生更多的泡沫，影响清洗效果。

另外，清洗液温度过高会加速锌、铝层在加减液时的腐蚀。以上是彩涂板生产厂家常用的清洗方法。只有坚持彩涂板在使用过程中的清洁，才能不耽误彩涂板的使用，保证产品的正常使用，提高生产效率！
In the use process, the color coated plate will contact with impurities in the air, which needs to be cleaned regularly for a long time. We often use two methods, cleaning and degreasing treatment and chemical cleaning agent. Let's look at the next issue. Cleaning and degreasing treatment mainly uses the dissolving, s***ification, emulsification, dampness, soaking and mechanical action of industrial chemical cleaning solution to remove the oil and impurity particles on the surface of substrate.

At present, the chemical cleaning solution used in the production line is basically com***ed of complexing agent, surfactant, sodium hydroxide, potassium hydroxide, polyphosphate and other components, which is an alkaline solution. The effect of cleaning oil removal mainly depends on the concentration of cleaning solution, temperature and cleaning time of steel strip. In the cleaning process, pay attention to the concentration and temperature of the cleaning solution.

Due to the low concentration of cleaning solution and unclean cleaning of the oil on the surface of the substrate, defects exist in the coating treatment of the rear edge, thus affecting the coating quality; the zinc and aluminum concentration in the galvanized sheet is high, which belongs to the amphoteric metal, while the zinc and aluminum coating are only com***ed of core salt in the hot alkali solution, forming serious corrosion, thus affecting the effect of the chemical coating along the rear edge.

Chemical cleaning agents usually contain surfactants, and the best temperature of each surfactant is different. If the temperature is too high, the stability of surfactant will be reduced, and the oil removal ability of cleaning solution will be reduced. If the temperature is too low, the s***ification reaction speed is too slow to completely eliminate the oil stain. At the same time, more foam will be produced, which will affect the cleaning effect.

In addition, too high temperature of the cleaning solution will accelerate the corrosion of zinc and aluminum layers when adding and subtracting the solution. The above is a common cleaning method used by color coated plate manufacturers. Only adhere to the cleaning of color coated plate in the use process, can not delay the use of color coated plate, ensure the normal use of products, and improve production efficiency!