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酸洗钝化、光亮退火和电解抛光

AP 酸洗钝化
管道内表面经过酸洗钝化、清洗,不会提高表面粗糙度,但可去除表面残存的颗粒和
油脂,降低能量水平,但不会减少介层数量。Ra≤1.0mm
The inside surface roughness of pipe after Acid picklingpassivation will not be improved, but the surface of the particles and oil canbe removed, and the energy level can be reduced, but the number of layers willnot reduce. Ra≤1.0mm


BA 光亮退火
在加氢或真空状态高温处理,一方面消除内部应力,另一方面在管道表面形成一层钝
化膜,以改善形态结构,减少能量水平,在一定程度上改善了表面粗糙度。Ra≤0.8mm
In the process of high temperature treatment, the internalstress is eliminated on the one hand,

and on the other hand, the formation of a passivation film is formed on thepipe surface to improve the structure and reduce the energy level. And theinside surface roughness of pipe is improved in a certain way. Ra≤0.8mm


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