公开(公告)号：US09297057B2

公开(公告)日：2016-03-29

申请号：US10578737

申请日：2004-11-10

申请人： Jeong-Bong Yoon ,  Won-Ho Son ,  Ki-Bong Kang ,  Noi-Ha Cho ,  Ki-Duck Park

发明人： Jeong-Bong Yoon ,  Won-Ho Son ,  Ki-Bong Kang ,  Noi-Ha Cho ,  Ki-Duck Park

IPC分类号： C21D8/02 ,  C22C38/00 ,  C21D9/52 ,  C22C38/04

CPC分类号： C22C38/004 ,  C21D8/0205 ,  C21D9/52 ,  C22C38/04

摘要： A cold rolled steel sheet, and a method of manufacturing the same, designed to have aging resistance and excellent formability suitable for use in automobile bodies, electronic appliances, and the like. The cold rolled steel sheet comprises in weight %: 0.003% or less of C, 0.003˜0.03% of S, 0.01˜0.1% of Al, 0.02% or less of N, 0.2% or less of P, at least one of 0.03˜0.2% of Mn and 0.005˜0.2% of Cu, and a balance of Fe and other unavoidable impurities. When the steel sheet comprises one of Mn and Cu, the composition of Mn, Cu, and S satisfies at least one relationship: 0.58*Mn/S≦10 and 1≦0.5*Cu/S≦10, and when the steel sheet comprises both Mn and Cu, the composition of Mn, Cu, and S satisfies the relationship: Mn+Cu≦0.3 and 2≦0.5*(Mn+Cu)/S≦20. Participates of MnS, CuS, and (Mn, Cu)S in the steel sheet have an average size of 0.2 μm or less. Since carbon content in a solid solution state in a crystal grain is controlled by fine precipitates of MnS, CuS, or (Mn, Cu)S, the steel sheet has enhanced aging resistance and formability, and has excellent yield strength and strength-ductility.

摘要翻译： 一种冷轧钢板及其制造方法，其设计成具有耐老化性和优异的成型性，适用于汽车车身，电子设备等。 冷轧钢板的重量％为C：0.003％以下，S：0.003〜0.03％，Al：0.01〜0.1％，N：0.02％以下，P：0.2％以下，0.03以下的至少一种 〜0.2％的Mn和0.005〜0.2％的Cu，余量为Fe等不可避免的杂质。 当钢板包含Mn和Cu中的一种时，Mn，Cu和S的组成满足至少一个关系：0.58 * Mn / S＆nlE; 10和1＆nlE; 0.5 * Cu / S＆nlE; 10，当钢板包含 Mn，Cu和S的组成均满足Mn + Cu和nlE; 0.3和2＆nlE; 0.5 *（Mn + Cu）/ S＆NlE的关系; 20。 MnS，CuS，（Mn，Cu）S在钢板中的平均粒径为0.2μm以下。 由于通过MnS，CuS或（Mn，Cu）S的微细析出物控制晶粒中固溶态的碳含量，因此钢板的耐老化性和成形性提高，屈服强度和强度延展性优异。

公开(公告)号：US20080257461A1

公开(公告)日：2008-10-23

申请号：US12089757

申请日：2006-10-25

申请人： Won-Ho Son ,  Jai-Ik Kim ,  Seung-Hee Lee ,  Jeong-Bong Yoon ,  Hee-Man Son

发明人： Won-Ho Son ,  Jai-Ik Kim ,  Seung-Hee Lee ,  Jeong-Bong Yoon ,  Hee-Man Son

IPC分类号： C21D9/00 ,  C22C38/40

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48

摘要： Provided are a steel sheet for an automotive muffler and a method for producing the steel sheet. The steel sheet includes 0.01% by weight or less of C, 0.1 to 0.3% by weight of Si, 0.3 to 0.5% by weight of Mn, 0.015% by weight or less of P, 0.015% or less by weight of S, 0.02 to 0.05% by weight of Al, 0.004% or less of N, 0.2 to 0.6% by weight of Cu, 0.01 to 0.04% by weight of Co, and a remainder of Fe and unavoidable impurities. The method includes 0.01% by weight or less of C, 0.1 to 0.3% by weight of Si, 0.3 to 0.5% by weight of Mn, 0.015% by weight or less of P, 0.015% or less by weight of S, 0.02 to 0.05% by weight of Al, 0.004% or less of N, 0.2 to 0.6% by weight of Cu, 0.01 to 0.04% by weight of Co, and a remainder of Fe and unavoidable impurities, preparing a hot rolled steel sheet by re-heating the steel slab and by, during a finish rolling process, hot-rolling the steel slab at a temperature that is an Ar3 transformation temperature or more, preparing a cold rolled steel sheet by cold-rolling the hot rolled steel sheet with a cold reduction ratio of 50 to 90%, and performing a continuous annealing for the cold rolled steel sheet at a temperature of 500 to 900° C.

摘要翻译： 本发明提供一种汽车消声器用钢板及其制造方法。 钢板包含0.01重量％以下的C，0.1〜0.3重量％的Si，0.3〜0.5重量％的Mn，0.015重量％以下的P，0.015重量％以下的S，0.02 至0.05重量％的Al，0.004重量％以下的N，0.2〜0.6重量％的Cu，0.01〜0.04重量％的Co，剩余的Fe和不可避免的杂质。 该方法包括0.01重量％以下的C，0.1〜0.3重量％的Si，0.3〜0.5重量％的Mn，0.015重量％以下的P，0.015重量％以下的S，0.02〜 0.05重量％的Al，0.004重量％以下的N，0.2〜0.6重量％的Cu，0.01〜0.04重量％的Co，剩余的Fe和不可避免的杂质，通过重新制备热轧钢板， 加热钢板，并且在精轧过程中，在Ar 3相变温度以上的温度下对钢坯进行热轧，通过冷轧来冷轧热轧钢板来制备冷轧钢板 比例为50〜90％，在500〜900℃的温度下对冷轧钢板进行连续退火。

公开(公告)号：US20090020196A1

公开(公告)日：2009-01-22

申请号：US10578737

申请日：2004-11-10

申请人： Jeong-Bong Yoon ,  Won-Ho Son ,  Ki-Bong Kang ,  Noi-Ha Cho ,  Ki-Duck Park

发明人： Jeong-Bong Yoon ,  Won-Ho Son ,  Ki-Bong Kang ,  Noi-Ha Cho ,  Ki-Duck Park

IPC分类号： C21D8/02 ,  C22C38/00

CPC分类号： C22C38/004 ,  C21D8/0205 ,  C21D9/52 ,  C22C38/04

摘要： A cold rolled steel sheet, and a method of manufacturing the same, designed to have aging resistance and excellent formability suitable for use in automobile bodies, electronic appliances, and the like. The cold rolled steel sheet comprises in weight %: 0.003% or less of C, 0.003˜0.03% of S, 0.01˜0.1% of Al, 0.02% or less of N, 0.2% or less of P, at least one of 0.03˜0.2% of Mn and 0.005˜0.2% of Cu, and a balance of Fe and other unavoidable impurities. When the steel sheet comprises one of Mn and Cu, the composition of Mn, Cu, and S satisfies at least one relationship: 0.58*Mn/S≦10 and 1≦0.5*Cu/S≦10, and when the steel sheet comprises both Mn and Cu, the composition of Mn, Cu, and S satisfies the relationship: Mn+Cu≦0.3 and 2≦0.5*(Mn+Cu)/S≦20. Participates of MnS, CuS, and (Mn, Cu)S in the steel sheet have an average size of 0.2 μm or less. Since carbon content in a solid solution state in a crystal grain is controlled by fine precipitates of MnS, CuS, or (Mn, Cu)S, the steel sheet has enhanced aging resistance and formability, and has excellent yield strength and strength-ductility.

摘要翻译： 一种冷轧钢板及其制造方法，其设计成具有耐老化性和优异的成型性，适用于汽车车身，电子设备等。 冷轧钢板的重量％为C：0.003％以下，S：0.003〜0.03％，Al：0.01〜0.1％，N：0.02％以下，P：0.2％以下，0.03以下的至少一种 〜0.2％的Mn和0.005〜0.2％的Cu，余量为Fe等不可避免的杂质。 当钢板包含Mn和Cu中的一种时，Mn，Cu和S的组成满足至少一个关系：0.58 * Mn / S <= 10和1 <= 0.5 * Cu / S <= 10，当 钢板包含Mn和Cu，Mn，Cu和S的组成满足Mn + Cu <= 0.3和2 <= 0.5 *（Mn + Cu）/ S <= 20的关系。 MnS，CuS，（Mn，Cu）S在钢板中的平均粒径为0.2μm以下。 由于通过MnS，CuS或（Mn，Cu）S的微细析出物控制晶粒中固溶态的碳含量，因此钢板的耐老化性和成形性提高，屈服强度和强度延展性优异。

公开(公告)号：US20070137739A1

公开(公告)日：2007-06-21

申请号：US10583701

申请日：2004-12-21

申请人： Jeong-Bong Yoon ,  Won-Ho Son ,  Ki-Bong Kang ,  Noi-Ha Cho

发明人： Jeong-Bong Yoon ,  Won-Ho Son ,  Ki-Bong Kang ,  Noi-Ha Cho

IPC分类号： C23C2/28

CPC分类号： C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/16 ,  C22C38/20

摘要： A bake-hardenable cold rolled steel sheet, and a method of manufacturing the same, designed to have bake hardenability and excellent formability suitable for automobile bodies, and the like. The steel sheet comprises 0.003˜0.005% C, 0.003˜0.03% S, 0.01˜0.1% Al, 0.02% or less N, 0.2% or less P, 0.03˜0.2% Mn and/or 0.005˜0.2% Cu, and the balance of Fe and other unavoidable impurities in terms of weight %. When it comprises one of Mn and Cu, the composition of Mn, Cu, and S satisfies one of relationships: 0.58*Mn/S≦10 and 1≦0.5*Cu/S≦10. When it comprises both Mn and Cu, the composition satisfies the relationships: Mn+Cu≦0.3 and 2≦0.5*(Mn+Cu)/S≦20. MnS, CuS, and (Mn, Cu)S precipitates have an average size of 0.2 μm or less. The steel sheets allow the content of solid solution to be controlled by fine MnS, CuS, (Mn, Cu)S precipitates, providing improved bake hardenability, formability, yield strength, and yield strength-ductility balance.

摘要翻译： 一种可烘烤硬化性冷轧钢板及其制造方法，其特征在于具有适于汽车车身的烘烤硬化性和优异成形性等。 该钢板包括0.003〜0.005％C，0.003〜0.03％S，0.01〜0.1％Al，0.02％以下N，0.2％以下P，0.03〜0.2％Mn和/或0.005〜0.2％Cu， 余量的Fe和其他不可避免的杂质的重量％。 当Mn，Cu和S的组成包含0.58 * Mn / S <= 10和1 <= 0.5 * Cu / S <10时，Mn，Cu和S的组成满足下列关系： 当它包括Mn和Cu时，组成满足Mn + Cu <= 0.3和2 <= 0.5 *（Mn + Cu）/ S <= 20的关系。 MnS，CuS和（Mn，Cu）S沉淀物的平均粒径为0.2μm以下。 钢板允许通过精细的MnS，CuS（（Mn，Cu）S沉淀物控制固溶体的含量，提供改善的烘烤淬透性，成形性，屈服强度和屈服强度 - 延展性平衡。

公开(公告)号：US07922968B2

公开(公告)日：2011-04-12

申请号：US12089757

申请日：2006-10-25

申请人： Won-Ho Son ,  Jai-Ik Kim ,  Seung-Hee Lee ,  Jeong-Bong Yoon ,  Hee-Man Son

发明人： Won-Ho Son ,  Jai-Ik Kim ,  Seung-Hee Lee ,  Jeong-Bong Yoon ,  Hee-Man Son

IPC分类号： C22C38/16 ,  C22C38/10 ,  C21D8/04

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48

摘要： Provided are a steel sheet for an automotive muffler and a method for producing the steel sheet. The steel sheet includes 0.01% by weight or less of C, 0.1 to 0.3% by weight of Si, 0.3 to 0.5% by weight of Mn, 0.015% by weight or less of P, 0.015% or less by weight of S, 0.02 to 0.05% by weight of Al, 0.004% or less of N, 0.2 to 0.6% by weight of Cu, 0.01 to 0.04% by weight of Co, and a remainder of Fe and unavoidable impurities. The method includes 0.01% by weight or less of C, 0.1 to 0.3% by weight of Si, 0.3 to 0.5% by weight of Mn, 0.015% by weight or less of P, 0.015% or less by weight of S, 0.02 to 0.05% by weight of Al, 0.004% or less of N, 0.2 to 0.6% by weight of Cu, 0.01 to 0.04% by weight of Co, and a remainder of Fe and unavoidable impurities, preparing a hot rolled steel sheet by re-heating the steel slab and by, during a finish rolling process, hot-rolling the steel slab at a temperature that is an Ar3 transformation temperature or more, preparing a cold rolled steel sheet by cold-rolling the hot rolled steel sheet with a cold reduction ratio of 50 to 90%, and performing a continuous annealing for the cold rolled steel sheet at a temperature of 500 to 900° C.

摘要翻译： 本发明提供一种汽车消声器用钢板及其制造方法。 钢板包含0.01重量％以下的C，0.1〜0.3重量％的Si，0.3〜0.5重量％的Mn，0.015重量％以下的P，0.015重量％以下的S，0.02 至0.05重量％的Al，0.004重量％以下的N，0.2〜0.6重量％的Cu，0.01〜0.04重量％的Co，剩余的Fe和不可避免的杂质。 该方法包括0.01重量％以下的C，0.1〜0.3重量％的Si，0.3〜0.5重量％的Mn，0.015重量％以下的P，0.015重量％以下的S，0.02〜 0.05重量％的Al，0.004重量％以下的N，0.2〜0.6重量％的Cu，0.01〜0.04重量％的Co，剩余的Fe和不可避免的杂质，通过重新制备热轧钢板， 加热钢板，并且在精轧过程中，在Ar 3相变温度以上的温度下对钢坯进行热轧，通过冷轧来冷轧热轧钢板来制备冷轧钢板 比例为50〜90％，在500〜900℃的温度下对冷轧钢板进行连续退火。