公开(公告)号：US20100212786A1

公开(公告)日：2010-08-26

申请号：US11922524

申请日：2007-04-18

申请人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

发明人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

IPC分类号： C21D9/52 ,  C22C38/00 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32 ,  C22C38/08

CPC分类号： C22C38/00 ,  C21D6/005 ,  C21D6/008 ,  C21D8/06 ,  C21D8/065 ,  C21D9/52 ,  C21D2211/002 ,  C21D2211/009

摘要： The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is heated in a specified temperature range to conduct post-reaustenization patenting and thereby obtain a high-carbon steel wire excellent in ductility that has a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and whose fracture reduction of area RA satisfies Expressions (1), (2) and (3) below: RA≧Ramin  (1), where RAmin=a−b×pearlite block size (μm), a=−0.0001187×TS (MPa)2+0.31814×TS (MPa)−151.32  (2) b=0.0007445×TS (MPa)−0.3753  (3).

摘要翻译： 本发明提供了拉伸性优良的线材和由线材制成的钢丝作为原料，生产率高，成品率低，成本低。 将特定组成的硬质钢线材在规定的温度范围内加热，进行后改性化处理，得到具有97％以上的面积率的珠光体组织的延展性优异的高碳钢丝， 平衡的非珠光体组织包括贝氏体，简并珠光体和先共析铁素体，并且其区域RA的断裂减少满足下面的表达式（1），（2）和（3）：RA≥Ramin（1），其中RAmin = -b×珠光体块尺寸（μm），a = -0.0001187×TS（MPa）2 + 0.31814×TS（MPa）-151.32（2）b = 0.0007445×TS（MPa）-0.3753（3）。

公开(公告)号：US08308875B2

公开(公告)日：2012-11-13

申请号：US11922154

申请日：2007-04-18

申请人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

发明人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

IPC分类号： C22C38/02

CPC分类号： C22C38/00 ,  B60C9/0007 ,  C21D6/008 ,  C21D8/0247 ,  C21D8/0263 ,  C21D8/065 ,  C21D9/525 ,  C21D9/5732 ,  C21D9/64 ,  C21D2211/009 ,  D07B1/066 ,  D07B2205/3035 ,  D07B2205/3042 ,  D07B2205/3057 ,  D07B2207/4045 ,  D07B2801/10 ,  D07B2801/60

摘要： The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is hot rolled, the hot-rolled steel is coiled in a specified temperature range, and the coiled steel is subjected to patenting at a predetermined cooling rate, thereby affording a high-carbon steel wire excellent in workability. It is high-strength steel wire excellent in drawability comprising a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and having a pearlite block size of not less than 20 μm and not greater than 45 μm. The invention also provides a high-carbon steel wire excellent in ductility, which is manufactured by subjecting the wire rod to intermediate patenting and cold drawing and has a tensile strength of 2800 MPa or greater.

摘要翻译： 本发明提供了拉伸性优良的线材和由线材制成的钢丝作为起始原料，生产率高，成品率低，成本低。 对特定组成的硬质钢线材进行热轧，在规定的温度范围内卷取热轧钢，并以规定的冷却速度对卷取钢进行专利化处理，得到优质的高碳钢丝 可操作性。 是具有97％以上的面积率的珠光体组织和包含贝氏体，退火 - 珠光体和前共析铁素体的非珠光体组织的平衡，并且具有珠光体块大小不等的高拉伸强度的高强度钢丝 小于20μm且不大于45μm。 本发明还提供了一种延展性优异的高碳钢丝，其通过对线材进行中间授权和冷拉制而得到的拉伸强度为2800MPa以上。

公开(公告)号：US20090277545A1

公开(公告)日：2009-11-12

申请号：US11922154

申请日：2007-04-18

申请人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

发明人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

IPC分类号： C21D9/52 ,  C22C38/32

CPC分类号： C22C38/00 ,  B60C9/0007 ,  C21D6/008 ,  C21D8/0247 ,  C21D8/0263 ,  C21D8/065 ,  C21D9/525 ,  C21D9/5732 ,  C21D9/64 ,  C21D2211/009 ,  D07B1/066 ,  D07B2205/3035 ,  D07B2205/3042 ,  D07B2205/3057 ,  D07B2207/4045 ,  D07B2801/10 ,  D07B2801/60

摘要： The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is hot rolled, the hot-rolled steel is coiled in a specified temperature range, and the coiled steel is subjected to patenting at a predetermined cooling rate, thereby affording a high-carbon steel wire excellent in workability. It is high-strength steel wire excellent in drawability comprising a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and having a pearlite block size of not less than 20 μm and not greater than 45 μm. The invention also provides a high-carbon steel wire excellent in ductility, which is manufactured by subjecting the wire rod to intermediate patenting and cold drawing and has a tensile strength of 2800 MPa or greater.

摘要翻译： 本发明提供了拉伸性优良的线材和由线材制成的钢丝作为起始原料，生产率高，成品率低，成本低。 对特定组成的硬质钢线材进行热轧，在规定的温度范围内卷取热轧钢，并以规定的冷却速度对卷取钢进行专利化处理，得到优质的高碳钢丝 可操作性。 是具有97％以上的面积率的珠光体组织和包含贝氏体，退火 - 珠光体和前共析铁素体的非珠光体组织的平衡，并且具有珠光体块大小不等的高拉伸强度的高强度钢丝 小于20mum且不大于45mum。 本发明还提供了一种延展性优异的高碳钢丝，其通过对线材进行中间授权和冷拉制而得到的拉伸强度为2800MPa以上。

公开(公告)号：US08168011B2

公开(公告)日：2012-05-01

申请号：US11922524

申请日：2007-04-18

申请人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

发明人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

IPC分类号： C21D8/06 ,  C21D9/52 ,  C22C38/02 ,  C22C38/14 ,  C22C38/04

CPC分类号： C22C38/00 ,  C21D6/005 ,  C21D6/008 ,  C21D8/06 ,  C21D8/065 ,  C21D9/52 ,  C21D2211/002 ,  C21D2211/009

摘要： The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is heated in a specified temperature range to conduct post-reaustenization patenting and thereby obtain a high-carbon steel wire excellent in ductility that has a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and whose fracture reduction of area RA satisfies Expressions (1), (2) and (3) below: RA≧RAmin  (1), where RAmin=a−b×pearlite block size (μm), a=−0.0001187×TS (MPa)2+0.31814×TS (MPa)−151.32  (2) b=0.0007445×TS (MPa)−0.3753  (3).

摘要翻译： 本发明提供了拉伸性优良的线材和由线材制成的钢丝作为起始原料，生产率高，成品率低，成本低。 将特定组成的硬质钢线材在规定的温度范围内加热，进行后改性化处理，得到具有97％以上的面积率的珠光体组织的延展性优异的高碳钢丝， 平衡的非珠光体结构包括贝氏体，退化珠光体和先共析铁素体，并且其区域RA的断裂减少满足下面的表达式（1），（2）和（3）：RA≥RAmin（1），其中RAmin = a -b×珠光体块尺寸（μm），a = -0.0001187×TS（MPa）2 + 0.31814×TS（MPa）-151.32（2）b = 0.0007445×TS（MPa）-0.3753（3）。