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  • 不锈钢无缝管为什么要做固溶处理?
  • 本站编辑:杭州元博钢铁有限公司 发布日期:2018-06-29 14:39 浏览次数:

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对于不锈钢无缝管而言,固溶处理的三个要素是温度、保温时间和冷却速度。不锈钢无缝管固溶处理有什么作用呢?
For stainless steel seamless pipes, the three elements of solid solution treatment are temperature, holding time and cooling rate. What are the functions of solid solution of stainless steel seamless pipe?
1、使不锈钢无缝管组织和成分均匀一致,这对原料尤其重要,因为热轧管材各段的轧制温度和冷却速度不一样,造成组织结构不一致。在高温下原子活动加剧,化学成分趋于均匀,快速冷却后就获得均匀的单相组织。
1. The uniform structure and composition of the stainless steel seamless tube are uniform, which is especially important for the raw materials, because the rolling temperature and cooling rate of the hot rolled pipes are different, and the structure is not consistent. At high temperatures, the atomic activity intensifies, and the chemical composition tends to be homogeneous. After rapid cooling, uniform single-phase structure is obtained.
2、消除加工硬化,以利于继续冷加工。通过固溶处理,歪扭的晶格恢复,伸长和破碎的晶粒重新结晶,内应力消除,不锈钢抗拉强度下降,伸长率上升。
2, eliminate work hardening to facilitate continuous cold processing. Through solution treatment, the distorted lattice is recovered, the elongated and broken grains recrystallized, the internal stress was eliminated, the tensile strength of stainless steel decreased, and the elongation increased.
3、恢复不锈钢无缝管固有的耐蚀性能。由于冷加工造成碳化物析出,晶格缺陷,使不锈钢无缝管耐蚀性能下降。固溶处理后不锈钢无缝管耐蚀性能恢复到比较佳状态。
3. Restore the inherent corrosion resistance of stainless steel seamless pipes. The corrosion resistance of stainless steel seamless pipe decreases due to the precipitation of carbide and the lattice defects caused by cold working. The corrosion resistance of stainless steel seamless pipes after solution treatment has been restored to the best condition.

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