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静电喷涂设备质量好坏的质量评定

来源:http://www.spormac.net/   发布时间:2018-05-26 18:31:52
衡量静电喷涂设备好坏的一项重要指标是涂料的利用率,即最终附着在被喷涂工件表面的涂料占总喷涂总流量的比例。不单是静电喷涂设备,所有的喷涂设备的发展,改进,创新都可以看作是提高涂料利用率的一个过程,静电喷涂设备也是传统空气喷涂涂料利用率一次改进和提升。涂料利用率是涂装制造成本和环境保护的重要因素。
An important index to measure the quality of the electrostatic spraying equipment is the utilization ratio of the coating, that is, the proportion of the coatings that are ultimately attached to the surface of the sprayed workpiece accounts for the total flow rate of the total spray. Not only electrostatic spraying equipment, all the development, improvement, and innovation of all the spraying equipment can be regarded as a process to improve the utilization of the coating, and the electrostatic spraying equipment is also an improvement and promotion of the utilization rate of the traditional air spraying coating. The utilization ratio of paint is an important factor in coating manufacturing cost and environmental protection.
影响静电喷涂设备利用率的主要参数包括:雾化器种类、静电高低、喷涂参数、导电性等。企业使用什么喷涂设备是决定涂料利用率的第一因素,因为不同的喷涂设备涂料利用率有着很大的差别。目前主流的喷涂设备雾化器涂料利用率从小到大为:普通空气喷枪,静电空气喷枪,旋杯。其次,喷涂环境对涂料利用率的影响也很大,如环境中的静电有无和静电高低的差别在施工中表现得非常明显。
光氧催化设备
The main parameters affecting the utilization rate of electrostatic spraying equipment include: nebulizer type, electrostatic height, spraying parameters, conductivity and so on. The use of spraying equipment is the first factor determining the utilization rate of paint, because the utilization rate of different spraying equipment is quite different. At present, the main utilization rate of spray equipment atomizer coating is small to large: ordinary air spray gun, electrostatic air spray gun, rotary cup. Secondly, the spraying environment has great influence on the utilization rate of coatings, such as the difference between static electricity and static electricity in the environment.
特别是用喷涂设备喷涂时,涂料粒子带电导致涂料向工件吸附,因此需要先到达工件表面的带电颗粒快速转移电荷,维持工件表面和喷枪之间的电压差,确保两者之间的空间电场强度对于涂料转移率非常关键。因此工件的接地状态会直接影响了涂料利用率。这咱情况塑料木器等导电性不好的工件时尤其明显。据统计数据分析:一般接地和良好接地的产品涂料利用率相差10%~20%。因此企业想要提高涂料利用率,降低涂装成本,一是用较先进的喷涂设备,二是要有良好的,甚至是苛刻的喷涂环境与之配套。
Especially when spraying equipment, the coating particles are charged for the coating to adsorb the coating to the workpiece. Therefore, the charge of charged particles can be transferred quickly to the surface of the workpiece, and the voltage difference between the surface of the workpiece and the spray gun is maintained, so that the strength of the space electric field between the two surfaces is crucial to the transfer rate of the coating. Therefore, the grounding state of the workpiece will directly affect the utilization rate of the paint. This situation is especially evident when plastic and woodwork are not well conducted. According to the statistical data analysis, the utilization ratio of the coatings between the general grounding and the good grounding is 10% to 20%. Therefore, the enterprises want to improve the utilization of coating and reduce the cost of coating. First, the more advanced spraying equipment, two is to have good, even the harsh spraying environment and matching.
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