发明申请
WO2010079995A3 ALUMINUM-PLATED STEEL SHEET HAVING SUPERIOR CORROSION RESISTANCE, HOT PRESS FORMED PRODUCT USING THE SAME, AND METHOD FOR PRODUCTION THEREOF
审中-公开
基本信息:
- 专利标题: ALUMINUM-PLATED STEEL SHEET HAVING SUPERIOR CORROSION RESISTANCE, HOT PRESS FORMED PRODUCT USING THE SAME, AND METHOD FOR PRODUCTION THEREOF
- 专利标题(中):具有优良耐腐蚀性的铝合金钢板,使用其的热压成型产品及其制造方法
- 申请号:PCT/KR2010000133 申请日:2010-01-08
- 公开(公告)号:WO2010079995A3 公开(公告)日:2010-09-30
- 发明人: CHO YEOL-RAE , KIM TAI-HO , PARK SUNG-HO , BAEK EUNG-RYUL
- 申请人: POSCO , CHO YEOL-RAE , KIM TAI-HO , PARK SUNG-HO , BAEK EUNG-RYUL
- 专利权人: POSCO,CHO YEOL-RAE,KIM TAI-HO,PARK SUNG-HO,BAEK EUNG-RYUL
- 当前专利权人: POSCO,CHO YEOL-RAE,KIM TAI-HO,PARK SUNG-HO,BAEK EUNG-RYUL
- 优先权: KR20090001877 2009-01-09
- 主分类号: C23C2/12
- IPC分类号: C23C2/12 ; B21D22/20
摘要:
The present invention provides a plated steel sheet and a method for production thereof, in which conditions for a plating bath are optimized during production of a hot rolled steel sheet or a cold rolled steel sheet into an aluminum-plated steel sheet, and processes are controlled during production of a hot press formed product from the steel sheet, thereby forming a plating layer having a (Fe3Al+FeAl) compound layer at a high rate at the surface of the steel sheet. The present invention also provides a hot press formed product using the steel sheet, and a method for production thereof. In cases where the (Fe3Al+FeAl) compound layer has an appropriate occupancy rate to the thickness of the whole plating layer, superior resistance against crack and corrosion is achieved to remarkably improve a local corrosion resistance of the hot press formed product, specifically, resistance against a hole corrosion, thereby obtaining high quality hot press formed products with high productivity and low costs.
摘要(中):
本发明提供一种镀覆钢板及其制造方法,其中,在将热轧钢板或冷轧钢板制造成镀铝钢板时,使镀浴的条件最佳化,并且控制工序 在由钢板制造热压成形品时,在钢板表面形成高速地具有(Fe 3 Al + FeAl)化合物层的镀层。 本发明还提供一种使用该钢板的热压成型品及其制造方法。 (Fe 3 Al + FeAl)化合物层对镀层整体的厚度具有适度的占有率的情况下,可获得优异的耐裂纹性和耐腐蚀性,显着提高热压成型体的局部耐腐蚀性, 防止孔蚀,从而获得高生产率和低成本的高质量热压成型产品。