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膜结构自行车棚涂料喷涂的原因
来源:http://www.sdcscp.com/ 发布时间:2022-04-02
1.添加过多稀释剂,导致粘度过低。也就是说,我们通常说的东西太薄,容易流动。
1. Add too much diluent, resulting in low viscosity. In other words, what we usually say is too thin and easy to flow.
解决方法:严格按照产品要求加入稀释剂,对于水性涂料,用量通常约为10%。
Solution: add diluent in strict accordance with the product requirements. For water-based coatings, the dosage is usually about 10%.
2.喷枪太靠近涂层表面。这将导致涂层在喷涂过程中没有整体雾化,而是以大液滴的状态直接喷涂在基材上,导致流动。
2. The spray gun is too close to the coating surface. This will cause the coating to spray directly on the substrate in the state of large droplets without overall atomization in the spraying process, resulting in flow.
解决方案:喷枪与基材之间保持合理距离,一般约20cm。
Solution: keep a reasonable distance between the spray gun and the substrate, generally about 20cm.
3.喷枪移动速度过慢,一次喷涂过厚等,容易造成流挂。
3. The moving speed of the spray gun is too slow, and the primary spraying is too thick, which is easy to cause sagging.
膜结构停车棚
解决方案:控制速度,或采用多层喷涂。
Solution: control the speed, or use multi-layer spraying.
4.膜结构自行车棚施工现场温度过低,涂料干燥速度过慢,容易造成流挂。
4. The construction site temperature of membrane structure bicycle shed is too low, and the coating drying speed is too slow, which is easy to cause sagging.
解决方法:提高温度或使用快干涂料。
Solution: raise the temperature or use quick drying coating.
5.油漆表面不干净,有油污、水等污物,涂刷后附着不好,流淌。
5. The paint surface is not clean, with oil, water and other dirt, which is not well attached and flowing after painting.
解决方案:这是一个重要的喷涂过程,以做好基底处理,不但可以防范流挂,还可以在很大限度上发挥涂层的防腐和防护性能。
Solution: This is an important spraying process to do a good job in substrate treatment, which can not only prevent sagging, but also give full play to the anti-corrosion and protective performance of the coating to a great extent.
以上是常见的原因,还有其他原因,如:采用湿触湿法喷涂时,间隔时间过短,造成流挂;对于水性涂料,过高的环境湿度也可能导致流挂;或者蘸了太多的油,刷了太多的油漆,因此油漆的厚度不同,较厚的部分会流动。
The above are common reasons, and there are other reasons, such as: when wet contact wet spraying is adopted, the interval is too short, resulting in sagging; For waterborne coatings, excessive ambient humidity may also lead to sagging; Or dip too much oil and brush too much paint, so the thickness of the paint is different, and the thicker part will flow.
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