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发明公开
CN109128692A 一种大厚度S135不锈钢板的生产方法 无效 - 撤回

一种大厚度S135不锈钢板的生产方法
摘要：
本发明公开了一种大厚度S135不锈钢板的生产方法，所述生产方法包括原始钢坯预热处理、制坯、钢坯加热及钢坯轧制工序。本发明通过合理的真空复合焊接制坯工艺，确保复合坯的制坯质量，以及后续的均热化加热技术和大压下轧制技术，确保钢板内部质量优良；通过双枪式电子束焊接技术，确保S135不锈钢板的原始复合坯质量良好，为后续加热、轧制生产提供基础条件。本发明实现了最大厚度200mm、探伤合JB/T4730‑2005 Ⅲ级以上的大厚度S135不锈钢板生产，Z向性能满足Z35级别，具有大厚度、大单重、生产效率高、成本低的优点。
摘要（英）：

The invention discloses a production method of a large-thickness S135 stainless steel plate. The production method comprises the processes of original steel billet preheating treatment, billet making,steel billet heating and steel billet rolling. According to the production method of the large-thickness S135 stainless steel plate, through a reasonable vacuum composite welding billet-making technique, the billet making quality of a composite billet is guaranteed, and through a subsequent soaking heating technology and a high-reduction rolling technology, the excellent internal quality of the steel plate is guaranteed; and through a double-gun-type electronic beam welding technology, the good quality of an original composite billet of the S135 stainless steel plate is guaranteed, and the basic conditions are provided for subsequent heating and rolling production. The large-thickness S135 stainless steel plate with the maximum thickness being 200 mm and flaw detection conforming to JB/T4730-2005 III grade or above is produced through the production method, the Z-direction property meets the Z35 grade, and the advantages of large thickness, large piece weight, high production efficiency and low cost are achieved.

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