发明专利
JP2007009320A High-strength steel sheet plated with zinc by hot dipping with excellent formability and process for producing the same
有权
基本信息:
- 专利标题： High-strength steel sheet plated with zinc by hot dipping with excellent formability and process for producing the same
- 专利标题（中）：通过热浸镀锌的高强度钢板，具有优异的可制造性和生产它的工艺
- 申请号：JP2006001477 申请日：2006-01-06
- 公开(公告)号：JP2007009320A 公开(公告)日：2007-01-18
- 发明人： MATSUDA HIROSHI , NAKAGAITO TATSUYA , FUTATSUKA TAKAYUKI , TAKAGI SHUSAKU , NAGATAKI YASUNOBU
- 申请人： Jfe Steel Kk , Jfeスチール株式会社
- 专利权人： Jfe Steel Kk,Jfeスチール株式会社
- 当前专利权人： Jfe Steel Kk,Ｊｆｅスチール株式会社
- 优先权： JP2005156601 2005-05-30; JP2006001477 2006-01-06
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C21D9/46 ; C22C38/60 ; C23C2/06
摘要：
PROBLEM TO BE SOLVED: To provide a high-strength steel sheet plated with zinc by hot dipping which has excellent processability, which can be produced using a production line including zinc plating by hot dipping and in which a sufficient austempering time after annealing is not secured, without necessitating a special structural control as a pretreatment.
SOLUTION: The high-strength steel sheet plated with zinc by hot dipping contains 0.05 to 0.3 mass% carbon, up to 1.4 mass% (including 0 mass%) silicon, 0.08 to 3 mass% manganese, 0.003 to 0.1 mass% phosphorous, up to 0.07 mass% sulfur, 0.1 to 2.5 mass% aluminum, 0.1 to 0.5 mass% chromium, and up to 0.007 mass% nitrogen, provided that silicon+aluminum≥0.5 mass%, with the remainder consisting of iron and unavoidable impurities. The steel sheet has a volume content of residual austenite of 3% or higher, and residual austenite grains have an average aspect ratio of 2.5 or lower.
COPYRIGHT: (C)2007,JPO&INPIT
摘要（中）：
SOLUTION: The high-strength steel sheet plated with zinc by hot dipping contains 0.05 to 0.3 mass% carbon, up to 1.4 mass% (including 0 mass%) silicon, 0.08 to 3 mass% manganese, 0.003 to 0.1 mass% phosphorous, up to 0.07 mass% sulfur, 0.1 to 2.5 mass% aluminum, 0.1 to 0.5 mass% chromium, and up to 0.007 mass% nitrogen, provided that silicon+aluminum≥0.5 mass%, with the remainder consisting of iron and unavoidable impurities. The steel sheet has a volume content of residual austenite of 3% or higher, and residual austenite grains have an average aspect ratio of 2.5 or lower.
COPYRIGHT: (C)2007,JPO&INPIT
要解决的问题：提供一种通过热浸镀锌的高强度钢板，其具有优异的加工性，其可以使用包括通过热浸镀锌的生产线生产并且在退火后具有足够的奥氏体回火时间 没有固定，不需要特殊的结构控制作为预处理。 解决方案：通过热浸镀锌的高强度钢板含有0.05〜0.3质量％的碳，至多1.4质量％（包括0质量％）的硅，0.08〜3质量％的锰，0.003〜0.1质量％ 磷，至多0.07质量％的硫，0.1至2.5质量％的铝，0.1至0.5质量％的铬和至多0.007质量％的氮，条件是硅+铝≥0.5质量％，其余由铁和不可避免的杂质组成 。 钢板的残留奥氏体的体积含量为3％以上，残留奥氏体晶粒的平均纵横比为2.5以下。 版权所有（C）2007，JPO＆INPIT
公开/授权文献:
信息查询:
EspacenetIPC结构图谱:
| C | 化学；冶金 |
| --C22 | 冶金（铁的冶金入C21）；黑色或有色金属合金；合金或有色金属的处理 |
| ----C22C | 合金 |
| ------C22C38/00 | 铁基合金，例如合金钢 |