内喷涂钢桶性能特点及生产工艺实践

Performance Characteristics and Exploration of Production Process of Inner Spray Coat Steel Barrel

目的提出钢桶以内壁形式进行分类的方法,论述目前常用的内喷涂材料的性能特点,在生产实践的基础上对内喷涂钢桶生产工艺进行提炼总结。方法在钢桶按开口形式及材料厚度的基础上,以是否有内壁材料及内壁材料的种类对钢桶进行分类。然后以比较的方式列出内喷涂材料的性能特点,按工艺流程提炼总结内喷涂钢桶生产工艺,并提出工艺要点。结果以有内壁材料、无内壁材料的内套软包装或直接接触定义为钢桶第3种分类方法,国内最常用的内壁材料主要有环氧树脂涂料、聚氟乙烯涂料、酚醛树脂涂料。结论批量生产内喷涂钢桶其成熟的内喷涂工艺流程为:表面去油—表面磷化—烘干—喷涂—烘烤塑化—涂层表面质量检测。

The classification method of steel barrel by inner wall type was proposed. The performance characteristics of commonly used materials of inner spray coat were discussed. The production process of inner spray coat steel barrel was summarized on the basis of production practice. On the basis of hatch type and material thickness, steel barrels were classified according to materials and types of the inner wall. The performance characteristics of inner spray coat materials were listed through comparison. The production process of steel barrel with inner spray coat was summarized according to process flowsheet and the key points of process were proposed. The third classification method of steel barrel was defined by distinguishing inner wall materials, inner soft liner or direct contact. Epoxy resin, PTFE and phenol aldehyde resin were commonly used inner wall materials in China. The mature process flowsheet of inner spray coating was as follow： de-oil of surface, phosphorization of surface, drying, spraying, plasticizing through baking, and quality detection of coating surface.