| 摘要 |
PURPOSE: A manufacturing method of stainless steel plates is provided to fundamentally control surface defects of stainless steel by controlling piece edge amount in hot rolling process. CONSTITUTION: A manufacturing method of stainless steel plates comprises the following step: micronizing the size of surface crystallization of edge part in the piece by width rolling both end parts of the stainless piece by using edge rolls in hot rolling process. The edge amount giving to the piece by the edge roll is set as 10-25mm. The surface crystallization of the edge part in the piece is 50μm or less and is formed in a depth of 250μm in a thickness direction. The stainless steel plate is a 304 based austenite stainless steel plate. [Reference numerals] (AA) Size of surface crystallization of the edge part(mm); (BB) Edge amount(mm) |
