公开(公告)号：US20120227872A1

公开(公告)日：2012-09-13

申请号：US13508745

申请日：2010-12-23

申请人： Dong-Hyun Kim ,  You-Hwan Lee ,  Sang-Yoon Lee ,  Hyung-Keun Cho

发明人： Dong-Hyun Kim ,  You-Hwan Lee ,  Sang-Yoon Lee ,  Hyung-Keun Cho

IPC分类号： C21D9/52 ,  C22C38/12 ,  C22C38/04 ,  C22C38/02

CPC分类号： C22C38/12 ,  C21D8/065 ,  C21D9/0093 ,  C22C38/02 ,  C22C38/04

摘要： An ultra-high-strength steel wire rod having excellent resistance to delayed fracture includes, by wt %, 0.7-1.2% C, 0.25-0.5% Si, 0.5-0.8% Mn, 0.02-0.1% V and a balance of Fe and inevitable impurities. The method includes the steps of heating the above steel composition to 1100° C. or lower and hot rolling at a temperature of 900-1000° C., followed by cooling to 600-650° C. at a prescribed rate, followed by cold drawing at a reduction ratio of 60-80%.

摘要翻译： 具有优异的延迟断裂性的超高强度钢线材包括：重量％，0.7-1.2％C，0.25-0.5％Si，0.5-0.8％Mn，0.02-0.1％V，余量为Fe和 不可避免的杂质。 该方法包括以下步骤：将上述钢组合物加热至1100℃以下，在900-1000℃的温度下进行热轧，然后以规定的比例冷却至600-650℃，然后冷却 以60-80％的减速比绘制。

公开(公告)号：US20120037283A1

公开(公告)日：2012-02-16

申请号：US13263758

申请日：2010-04-23

申请人： Dong-Hyun Kim ,  You-Hwan Lee ,  Sang-Yoon Lee ,  Hyung-Keun Cho

发明人： Dong-Hyun Kim ,  You-Hwan Lee ,  Sang-Yoon Lee ,  Hyung-Keun Cho

IPC分类号： C21D9/52 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/06

CPC分类号： C22C38/12 ,  C22C38/001 ,  C22C38/06 ,  C22C38/14

摘要： Provided are a high-strength, high-toughness steel wire rod and a method of manufacturing the same. The steel wire rod has a composition including 0.07 wt % to 0.14 wt % of aluminum (Al) and nitrogen (N) wherein Al:N (where Al and N denote wt % of each element) is in a range of 15:1 to 25:1. Since a steel wire rod having sufficient strength and toughness improvement effects can be obtained with a simple alloy component, a steel wire rod capable of allowing processing such as cold forging to be performed without an additional heat treatment may be provided.

摘要翻译： 本发明提供高强度，高韧性钢线材及其制造方法。 钢线材具有含有0.07重量％至0.14重量％的铝（Al）和氮（N）的组成，其中Al：N（其中Al和N表示各元素的重量％）在15:1至 25：1。 由于可以通过简单的合金成分获得具有足够的强度和韧性改善效果的钢丝棒，所以可以提供能够进行诸如冷锻的加工的钢线，而不进行额外的热处理。

公开(公告)号：US20140027025A1

公开(公告)日：2014-01-30

申请号：US14110924

申请日：2012-05-11

申请人： Dong-Hyun Kim ,  You-Hwan Lee ,  Hyung-Keun Cho

发明人： Dong-Hyun Kim ,  You-Hwan Lee ,  Hyung-Keun Cho

IPC分类号： C21D8/06 ,  C22C38/02 ,  C22C38/04 ,  C22C38/60

CPC分类号： C21D8/065 ,  C21D9/525 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/60

摘要： Provided is a wire rod having high strength and high toughness, which suppresses the generation of surface oxide and has superior surface properties through uniform oxide formation, and to a method for manufacturing same. For this purpose, a wire rod comprising 0.005˜ to 0.02 wt. % of Sb, having superior surface properties, high strength and high toughness, and a method for manufacturing same are provided.

摘要翻译： 提供一种具有高强度和高韧性的线材，其通过均匀的氧化物形成抑制了表面氧化物的产生并具有优异的表面性能及其制造方法。 为此，将包含0.005〜0.02重量％ 提供具有优异的表面性能，高强度和高韧性的Sb的％，及其制造方法。

公开(公告)号：US08715429B2

公开(公告)日：2014-05-06

申请号：US13384779

申请日：2010-08-04

申请人： You-Hwan Lee ,  Dong-Hyun Kim ,  Sang-Yoon Lee ,  Ha-Ni Kim ,  Yong-Sik Park

发明人： You-Hwan Lee ,  Dong-Hyun Kim ,  Sang-Yoon Lee ,  Ha-Ni Kim ,  Yong-Sik Park

IPC分类号： C22C38/02 ,  C22C38/04 ,  C21D8/06 ,  C21D7/13

CPC分类号： C22C38/02 ,  C21D8/021 ,  C21D8/0263 ,  C21D8/06 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/04

摘要： There is provided a rolled steel with excellent toughness, a drawn wire rod prepared by drawing the rolled steel, and a method for manufacturing the same, in which even if a heating step is omitted, the toughness of the steel can be improved by securing a degenerated pearlite structure in an internal structure of the rolled steel by controlling a content of Mn among components and cooling conditions, and then preventing C diffusion. The rolled steel according to the present invention includes C: 0.15˜0.30%, Si: 0.1˜0.2%, Mn: 1.8˜3.0%, P: 0.035% or less, S: 0.040% or less, the remainder Fe, and other inevitable impurites, as a percentage of weight, in which the microstucture of the rolled steel is composed of ferrite and pearlite including cementite with 150 nm or less of thickness.

摘要翻译： 提供具有优异韧性的轧制钢，通过拉制轧制钢制备的拉丝线及其制造方法，其中即使省略加热步骤，也可以通过确保钢的韧性来提高钢的韧性 通过控制成分中的Mn含量和冷却条件，然后防止C扩散，在轧制钢的内部结构中退化珠光体组织。 根据本发明的轧制钢包括C：0.15〜0.30％，Si：0.1〜0.2％，Mn：1.8〜3.0％，P：0.035％以下，S：0.040％以下，剩余部分Fe等 不可避免的杂质占重量的百分比，其中轧制钢的组织由铁素体和珠光体组成，包括厚度在150nm以下的渗碳体。

公开(公告)号：US20120118443A1

公开(公告)日：2012-05-17

申请号：US13384779

申请日：2010-08-04

申请人： You-Hwan Lee ,  Dong-Hyun Kim ,  Sang-Yoon Lee ,  Ha-Ni Kim ,  Yong-Sik Park

发明人： You-Hwan Lee ,  Dong-Hyun Kim ,  Sang-Yoon Lee ,  Ha-Ni Kim ,  Yong-Sik Park

IPC分类号： C22C38/02 ,  C21D9/46

CPC分类号： C22C38/02 ,  C21D8/021 ,  C21D8/0263 ,  C21D8/06 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/04

摘要： There is provided a rolled steel with excellent toughness, a drawn wire rod prepared by drawing the rolled steel, and a method for manufacturing the same, in which even if a heating step is omitted, the toughness of the steel can be improved by securing a degenerated pearlite structure in an internal structure of the rolled steel by controlling a content of Mn among components and cooling conditions, and then preventing C diffusion. The rolled steel according to the present invention includes C: 0.15˜0.30%, Si: 0.1˜0.2%, Mn: 1.8˜3.0%, P: 0.035% or less, S: 0.040% or less, the remainder Fe, and other inevitable impurites, as a percentage of weight, in which the microstucture of the rolled steel is composed of ferrite and pearlite including cementite with 150 nm or less of thickness.

摘要翻译： 提供具有优异韧性的轧制钢，通过拉制轧制钢制备的拉丝线及其制造方法，其中即使省略加热步骤，也可以通过确保钢的韧性来提高钢的韧性 通过控制成分中的Mn含量和冷却条件，然后防止C扩散，在轧制钢的内部结构中退化珠光体组织。 根据本发明的轧制钢包括C：0.15〜0.30％，Si：0.1〜0.2％，Mn：1.8〜3.0％，P：0.035％以下，S：0.040％以下，剩余部分Fe等 不可避免的杂质占重量的百分比，其中轧制钢的组织由铁素体和珠光体组成，包括厚度在150nm以下的渗碳体。

公开(公告)号：US09322075B2

公开(公告)日：2016-04-26

申请号：US13695121

申请日：2011-05-06

申请人： Dong-Hyun Kim ,  Woo-Gi Shin ,  You-Hwan Lee

发明人： Dong-Hyun Kim ,  Woo-Gi Shin ,  You-Hwan Lee

IPC分类号： C22C38/02 ,  C22C38/04 ,  C21D9/52 ,  C21D8/06

CPC分类号： C21D9/52 ,  C21D8/065 ,  C21D2211/003 ,  C21D2211/005 ,  C22C38/02 ,  C22C38/04

摘要： Provided is an ultra-fine grained, high-strength, high-toughness carbon steel wire rod manufactured through control of a microstructure by process control without addition of relatively expensive alloying elements. More particularly, the material provided is an ultra-fine grained, high-strength, high-toughness carbon steel wire rod having a microstructure including a ferrite structure having an area fraction of 60% or more and a cementite structure as a remainder, wherein an average grain diameter of ferrite grains is 15 μm or less. Also provided is a method of manufacturing the wire rod.

摘要翻译： 提供了通过在不添加相对昂贵的合金元素的情况下通过过程控制来控制微结构而制造的超细晶粒，高强度，高韧性的碳钢线材。 更具体地说，所提供的材料是具有微结构的超细晶粒，高强度，高韧性的碳钢线材，其具有包括面积分数为60％以上的铁素体结构和作为余量的渗碳体结构的微结构，其中， 铁素体晶粒的平均粒径为15μm以下。 还提供了制造线材的方法。

公开(公告)号：US20140150934A1

公开(公告)日：2014-06-05

申请号：US14232805

申请日：2012-05-14

申请人： You-Hwan Lee ,  Dong-Hyun Kim ,  Geun-Soo Ryu

发明人： You-Hwan Lee ,  Dong-Hyun Kim ,  Geun-Soo Ryu

IPC分类号： C21D9/00 ,  C22C38/08 ,  C22C38/04 ,  C22C38/00 ,  C22C38/02

CPC分类号： C21D9/0093 ,  C21D8/065 ,  C21D9/525 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12

摘要： The present invention relates to a wire rod used in bolts for automobile engines, for example, and more specifically to a wire rod having an improved resistance to hydrogen delayed fracture, to a manufacturing method for same, to a bolt using same and a method for manufacturing the bolt. Provided are a high strength wire rod having a superior resistance to hydrogen delayed fracture and a method for manufacturing same, a high strength bolt using the wire rod and a method for manufacturing same, wherein.the wire rod comprises, 0.3-0.7 wt % C, 0.05-2.0 wt % Si, 0.7-1.5 wt % Mn, 0.01-0.1 wt % Ni, and 30-70 ppm La, and the remainder thereof is comprised by Fe and inevitable impurities.

摘要翻译： 本发明涉及例如用于汽车发动机的螺栓的线材，更具体地说，涉及一种具有改进的耐氢延迟断裂性的线材，其制造方法，使用该线材的螺栓以及用于其的方法 制造螺栓。 本发明提供一种具有优异的耐氢延迟断裂性的高强度线材及其制造方法，使用该线材的高强度螺栓及其制造方法。 线材包括0.3-0.7重量％C，0.05-2.0重量％的Si，0.7-1.5重量％的Mn，0.01-0.1重量％的Ni和30-70ppm的La，其余的由Fe和不可避免的 杂质。

公开(公告)号：US09728332B2

公开(公告)日：2017-08-08

申请号：US13824428

申请日：2011-11-09

申请人： Dong-Hyun Kim ,  You-Hwan Lee ,  Woo-Gi Shin

发明人： Dong-Hyun Kim ,  You-Hwan Lee ,  Woo-Gi Shin

IPC分类号： H01F41/02 ,  C21D8/06 ,  C21D8/12 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06 ,  H01F1/14 ,  B21C1/00 ,  H01F1/01 ,  C22C38/02

CPC分类号： H01F41/02 ,  B21C1/00 ,  C21D8/06 ,  C21D8/065 ,  C21D8/12 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  H01F1/01 ,  H01F1/143

摘要： A wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod and the steel wire can be used in transformers, vehicles, electric or electronic products, or the like which require low iron loss and high permeability. Provided are a wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod or the steel wire comprises, by wt %, 0.03 to 0.05% of C, 3.0 to 5.0% of Si, 0.1 to 2.0% of Mn, 0.02 to 0.08% of Al, 0.0015 to 0.0030% of N, and the remainder being Fe and unavoidable impurities. The wire rod and steel wire having directional properties may be provided by a general manufacturing process without using expensive alloying elements and without having to add a manufacturing facility.

公开(公告)号：US09394580B2

公开(公告)日：2016-07-19

申请号：US13824667

申请日：2011-11-21

申请人： You-Hwan Lee ,  Dong-Hyun Kim

发明人： You-Hwan Lee ,  Dong-Hyun Kim

IPC分类号： C21D7/10 ,  C21D8/06 ,  B21C1/00 ,  C21D7/00 ,  C21D9/52 ,  C22C38/04 ,  C22C38/38 ,  C22C38/02

CPC分类号： C21D8/065 ,  B21C1/003 ,  C21D7/00 ,  C21D7/10 ,  C21D9/525 ,  C22C38/02 ,  C22C38/04 ,  C22C38/38

摘要： Provided is a wire rod for use in mechanical structure connections, vehicle components, or the like, and more particularly, to a wire rod which has superior toughness without being subjected to a heat treatment, and the strength of which is ensured through a cold-drawing process. Tot his end, provided are a high-toughness cold-drawn non-heat-treated wire rod and a method for manufacturing the same, wherein the wire rod comprises in % by weight: 0.2 to 0.3% of carbon (C), 0.1 to 0.2% of silicon (Si), 2.5 to 4.0% of manganese (Mn), 0.035% or less (but not 0%) of phosphorus (P), 0.04% or less (but not 0%) of sulfur (S), the remainder being iron (Fe) and unavoidable impurities.

摘要翻译： 本发明提供一种用于机械结构连接，车辆部件等的线材，更具体地说，涉及一种具有优异韧性而不经受热处理的线材，其强度通过冷 - 绘图过程。 尽管如此，提供了一种高韧性冷拉非热处理线材及其制造方法，其中线材包含重量百分比：碳（C）的0.2〜0.3％，碳（C）的0.1〜0.3％ 0.2％硅（Si），2.5〜4.0％锰（Mn），0.035％以下（但不为0％）的磷（P），0.04％以下（但不为0％）的硫（S） 余量为铁（Fe）和不可避免的杂质。

公开(公告)号：US20130189148A1

公开(公告)日：2013-07-25

申请号：US13824428

申请日：2011-11-09

申请人： Dong-Hyun Kim ,  You-Hwan Lee ,  Woo-Gi Shin

发明人： Dong-Hyun Kim ,  You-Hwan Lee ,  Woo-Gi Shin

IPC分类号： H01F41/02 ,  B21C1/00 ,  H01F1/01

CPC分类号： H01F41/02 ,  B21C1/00 ,  C21D8/06 ,  C21D8/065 ,  C21D8/12 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  H01F1/01 ,  H01F1/143

摘要： A wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod and the steel wire can be used in transformers, vehicles, electric or electronic products, or the like which require low iron loss and high permeability. Provided are a wire rod and steel wire having superior magnetic characteristics and a method for manufacturing same, wherein the wire rod or the steel wire comprises, by wt %, 0.03 to 0.05% of C, 3.0 to 5.0% of Si, 0.1 to 2.0% of Mn, 0.02 to 0.08% of Al, 0.0015 to 0.0030% of N, and the remainder being Fe and unavoidable impurities. The wire rod and steel wire having directional properties may be provided by a general manufacturing process without using expensive alloying elements and without having to add a manufacturing facility.

摘要翻译： 具有优异的磁特性的线材和钢丝及其制造方法，其中线材和钢丝可用于需要低铁损和高渗透性的变压器，车辆，电气或电子产品等中。 本发明提供一种具有优良磁特性的线材和钢丝及其制造方法，其中线材或钢丝以重量％计含有C 0.03〜0.05％，Si 3.0〜5.0％，Si：0.1〜2.0 Mn的％，Al的0.02〜0.08％，N的0.0015〜0.0030％，余量是Fe和不可避免的杂质。 具有定向特性的线材和钢丝可以通过一般的制造工艺提供，而不需要使用昂贵的合金元素，而不需要添加制造设备。