信息摘要：
彩涂板涂层质量的控制通常分三个阶段进行。即涂层前控制、涂层施工过程和涂层后根据涂层的失效程度控制。其中涂层前和涂层施工过程中的控制非常重要，可以说是起到决定性的作用，而涂层后的质量控制实际上是对前两个阶段的反馈，是属于一种质量缺陷成因的查找手段。因此，操作工在整个涂层施工过程中，要严格按照工艺规程和操作规程进行。...
彩涂板涂层质量控制应包括哪些检查环节和内容
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彩涂板涂层质量的控制通常分三个阶段进行。即涂层前控制、涂层施工过程和涂层后根据涂层的失效程度控制。其中涂层前和涂层施工过程中的控制非常重要，可以说是起到决定性的作用，而涂层后的质量控制实际上是对前两个阶段的反馈，是属于一种质量缺陷成因的查找手段。因此，操作工在整个涂层施工过程中，要严格按照工艺规程和操作规程进行。
彩涂板涂层前控制主要有如下几个检查环节:面
(1)检查钢带表面处理前是否经过表面缺陷和板形方面的测试和分析。
(2)检查钢带表面的脱脂清洗效果。
(3)检查钢带表面化学液膜厚是否按照国家或行业规定标准。
(4)检查钢带表面是否符合涂层基板在表面温、湿度方面的要求。
(5)涂料和稀释剂的型号、规格，上机前的黏度。
(6)涂层室的环境温度。
彩涂板涂层施工过程控制主要有如下几个检查环节
(1)底、面漆涂料的湿膜厚度。
(2)湿膜是否存在漏涂或不连续等缺失现象。
(3)涂头上各辊子与生产线的速比是否符合工艺要求。
(4)固化炉各段的烘干温度。
彩涂板涂层后的控制主要有如下几种检査环节
(1)检查涂层表面状态，包括是否有表面缺陷、光泽和颜色等。
(2)按照国家或行业标准检查干膜总厚度是否达到设计要求。
(3)检査涂层对基板的附着力和涂层间的附着力。
(4)按涂层的质量标准检查涂层的其他性能。
The quality control of coatings on color coated sheets is usually carried out in three stages. That is, the control before coating, the process of coating construction and the control after coating according to the failure degree of coating. The control before coating and during coating construction is very important, which can be said to play a decisive role, while the quality control after coating is actually feedback to the first two stages, which is a means to find the cause of quality defects. Therefore, during the whole coating construction process, operators should strictly follow the process regulations and operation rules.
Pre-coating control mainly includes the following inspection links:
(1) Check whether the strip has been tested and analyzed for surface defects and flatness before surface treatment.
(2) Check the degreasing cleaning effect of steel strip surface.
(3) Check whether the chemical liquid film thickness on the surface of steel strip is in accordance with the national or industrial standards.
(4) Check whether the surface of the strip meets the surface temperature and humidity requirements of the coated substrate.
(5) Types and specifications of coatings and diluents, and viscosity before boarding.
(6) The ambient temperature of the coating chamber.
The process control of coating construction mainly includes the following inspection links
(1) Wet film thickness of primer and topcoat.
(2) Wet film is missing or discontinuous.
(3) Whether the speed ratio of the rollers on the coating head to the production line meets the technological requirements.
(4) The drying temperature of each section of the curing furnace.
The control after coating mainly includes the following several inspection links
(1) Check the surface condition of the coating, including whether there are surface defects, gloss and color, etc.
(2) Check whether the total thickness of dry film meets the design requirements according to national or industrial standards.
(3) Check the adhesion between the coating and the substrate.
(4) Check other properties of the coating according to the quality standard of the coating.
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