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2018-05-20 17:39:40 扬中市乐夫装饰材料经营 阅读

铝艺护栏在喷粉过程中,需要采用的设备为自动喷枪与工喷枪补喷相结合的形式,目的是实时监控喷粉质量,保证产品质量稳定。在喷粉过程中要注意的事项有:

一、要注意吊具的导电性,且吊具上的徐层不宜太厚,过厚时可采取集中焚烧的方法清除用具上的涂层。

二、由于工件较重,一定要设计好挂具,要求挂具牢固可靠。

三、采用冷风吹干,在吹干的过程中,对工件进行检查,对于允许缺陷,如流挂、起泡、露底、缔孔等可用丙酮等稀释粉末涂料,趁工件未晾时涂程或喷覆于缺陷表面。

四、用余热固化对于重大缺陷需要进行返修处理,根据涂膜厚度选取不同的处理方法,一般有直接上件重新喷粉、机械打磨、用脱膜剂处理三种方法。

最后还要采用预烘进行处理。目的有:

1、是除去工件上剩余的水分;

2、是可以保证一定厚度的粉末涂料较好地附着在工件的表面;

3、是保证工件尽快均匀受热,加快固化过程一般预烘的温度是90—140℃。

In the process of powder spraying, the equipment that needs to be used in the process of powder spraying is the form of combining the automatic spray gun with the injection of the spray gun. The purpose is to monitor the quality of the powder spraying in real time, and ensure the quality of the product to be stable. What should be paid attention to in the process of powder spraying are:

First, attention should be paid to the electrical conductivity of the spreader, and the Xu layer on the spreader should not be too thick. When the thickness is too thick, the coating on the appliance can be removed by centralized burning.

Two, as the workpiece is heavier, it is necessary to design the hanger and require the hanger to be solid and reliable.

Three. Use cold air to blow dry, check the workpiece in the process of blowing dry, for the allowable defect, such as flow hanging, foaming, bottom, hole, etc. can be diluted powder coating, such as acetone, etc., when the workpiece is not dried or coated on the defect surface.

Four. The treatment of major defects is required to be retreated with waste heat curing. According to the thickness of the film, different treatment methods are selected. In general, there are three methods of respraying, mechanical grinding, and stripping agent treatment.

In the end, the pre drying process should be used. The purpose is:

1, it is to remove the residual moisture on the workpiece.

2, it is possible to ensure that a certain thickness of powder coating adheres well to the surface of the workpiece.

The 3 is to ensure that the workpiece is uniformly heated as quickly as possible, so that the curing temperature is 90 to 140 degrees.


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