输气管道内减阻涂料黏度对钢管内喷涂的影响

Influence on Steel Pipe internal Coating of Internal Resistance-reducing Coating Viscosity for Gas Pipeline

介绍了输气管道内减阻涂料的特点及相关标准对涂料性能的要求。结合钢管内喷涂工艺,分析了内减阻涂料黏度的变化对钢管内喷涂的影响,认为涂料黏度的变化是影响钢管内喷涂质量的重要因素之一。涂料温度较低时,应根据涂料温度的变化,采取适当的预热保温措施,可改善涂层厚度的差异,减少涂层质量缺陷的产生,提高涂料的利用率。结果表明,采取适当的预热保温措施后,改善了涂层质量,减少了内涂料的单位面积消耗,从而降低了管道内防腐层成本。

In this article, it introduced the characteristics of internal resistance-reducing coating and the requirements to coating performance in the corresponding standards. Combing with steel pipe internal coating process, it analyzed the influence of viscosity change on steel pipe internal coating, and regarded that the influence of viscosity change is one of the important factors for steel pipe coating. When the coating temperature is low, based on the change of coating temperature, it should adopt proper preheating temperature preservation measures, to improve the coating thickness difference , to reduce quality defects , and enhance the utilization efficiency of coating material. The results indicated that adopting proper preheating temperature preservation measure, it can improve the quality of coating and reduce the material consumption of per unit area of the internal coating, thus to low the cost of internal coating.