Process for stable production of high-quality 301 stainless steel hard plate
By adopting the process of annealing pickling, complete rolling, complete annealing pickling, incomplete rolling and alkaline washing in the 301 stainless steel hard plate production process, the problems of high surface roughness and large fluctuations in the steel coil surface in the existing process are solved, and high-quality and stable mechanical properties of hard plate production are achieved.
Patent Information
- Application Number
- PCT/CN2024/097199
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-21
- Filing Date
- 2024-06-04
- Publication Date
- 2025-03-27
AI Technical Summary
The existing 301 stainless steel hard plate production process leads to high surface roughness and large fluctuations in mechanical properties, which cannot meet customers' requirements for surface quality and mechanical properties.
The black-skin steel coil was annealed and pickled, completely rolled, and then completely annealed and pickled, and then washed after incomplete rolling and alkaline to obtain a 301 stainless steel hard plate. This process includes two steps of cold rolling process: complete rolling delay (rolling lowering rate is above 50%) and incomplete rolling delay (rolling lowering rate is below 35%).
It realizes the stable mechanical properties and high-quality surface of the 301 stainless steel hard plate, meeting customers' requirements for the mechanical properties and surface roughness of steel coils.