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    Precipitation-hardening-type Ni-base alloy exhibiting improved corrosion resistance
    1.
    发明授权
    Precipitation-hardening-type Ni-base alloy exhibiting improved corrosion resistance 失效
    具有改善耐腐蚀性的沉淀硬化型Ni基合金

    公开(公告)号：US5217684A

    公开(公告)日：1993-06-08

    申请号：US619980

    申请日：1990-11-30

    申请人： Masaaki Igarashi ,  Shiro Mukai ,  Yasutaka Okada ,  Akio Ikeda

    发明人： Masaaki Igarashi ,  Shiro Mukai ,  Yasutaka Okada ,  Akio Ikeda

    IPC分类号： C22C19/05

    CPC分类号： C22C19/056 ,  C22C19/055

    摘要： A precipitation-hardening-type Ni-base alloy exhibiting improved resistance to stress corrosion cracking in a sour gas atmosphere containing elemental sulfur at high temperatures is disclosed. The alloy consists essentially of, by weight %;______________________________________ Cr: 12-25%, Mo: over 9.0 and up to 15%, Nb: 4.0-6.0%, Fe: 5.0-25%, Ni: 45-60%, C: 0.050% or less, Si: 0.50% or less, Mn: 1.0% or less, P: 0.025% or less, S: 0.0050% or less, N: 0.050% or less, Ti: 0.46-1.0%, Al: 0-2.0%. ______________________________________

    摘要翻译： 公开了一种在高温下含有元素硫的酸性气体环境中耐应力腐蚀开裂性能优异的析出硬化型Ni基合金。 合金基本上由重量％组成; -Cr：12-25％，Mo：9.0以上15％以下，-Nb：4.0-6.0％，Fe：5.0〜25％，-N：45-60％，C：0.050％以下，-Si ：0.50％以下，Mn：1.0％以下，-P：0.025％以下，S：0.0050％以下，-N：0.050％以下，-Ti：0.46〜1.0％，Al：0〜2.0％ 。 -

    Precipitation-hardening-type ni-base alloy exhibiting improved corrosion resistance
    2.
    发明授权
    Precipitation-hardening-type ni-base alloy exhibiting improved corrosion resistance 失效
    显示改善的耐腐蚀性的沉淀硬化型镍基合金

    公开(公告)号：US5000914A

    公开(公告)日：1991-03-19

    申请号：US123878

    申请日：1987-11-23

    申请人： Masaaki Igarashi ,  Shiro Mukai ,  Yasutaka Okada ,  Akio Ikeda

    发明人： Masaaki Igarashi ,  Shiro Mukai ,  Yasutaka Okada ,  Akio Ikeda

    IPC分类号： C22C19/05

    CPC分类号： C22C19/055 ,  C22C19/056

    摘要： A precipitation-hardening-type Ni-base alloy exhibiting improved resistance to stress corrosion cracking in a sour gas atmosphere containing elemental sulfur at high temperatures is disclosed. The alloy comprises essentially, by weight %;______________________________________Cr: 12-25%, Mo: 5.5-15%,Nb: 4.0-6.0%, Fe: 5.0-25%,Ni: 45-60%, C: 0.050% or less,Si: 0.50% or less, Mn: 1.0% or less,P: 0.025% or less, S: 0.0050% or less,N: 0.050% or less,Ti: 0-1.0%, Al: 0-2.0%.______________________________________

    摘要翻译： 公开了一种在高温下含有元素硫的酸性气体环境中耐应力腐蚀开裂性能优异的析出硬化型Ni基合金。 合金基本上由重量百分数％组成; -Cr：12-25％，Mo：5.5-15％，-Nb：4.0-6.0％，Fe：5.0-25％，-Ni：45-60％，C：0.050％以下，-Si：0.50％ 以下，Mn：1.0％以下，-P：0.025％以下，S：0.0050％以下，-N：0.050％以下，-Ti：0〜1.0％，Al：0〜2.0％。 -

    Process for making high strength deep well casing and tubing having improved resistance to stress-corrosion cracking
    3.
    发明授权
    Process for making high strength deep well casing and tubing having improved resistance to stress-corrosion cracking 失效
    制造具有改进的抗应力腐蚀开裂性能的高强度深井套管和管道的方法

    公开(公告)号：US4421571A

    公开(公告)日：1983-12-20

    申请号：US389568

    申请日：1982-06-17

    申请人： Takeo Kudo ,  Yasutaka Okada ,  Taishi Moroishi ,  Akio Ikeda ,  Hiroo Ohtani ,  Kunihiko Yoshikawa

    发明人： Takeo Kudo ,  Yasutaka Okada ,  Taishi Moroishi ,  Akio Ikeda ,  Hiroo Ohtani ,  Kunihiko Yoshikawa

    IPC分类号： C21D8/10 ,  C22C19/05 ,  C22C38/44

    CPC分类号： C21D8/105 ,  C22C19/05 ,  C22C38/44

    摘要： A process for manufacturing high strength deep well casing, tubing, and drill pipes, which have improved resistance to stress corrosion cracking is disclosed. The process comprises the steps of preparing an alloy composition which is:______________________________________ C .ltoreq.0.05% Si .ltoreq.1.0% Mn .ltoreq.2.0% P .ltoreq.0.030% S .ltoreq.0.005% N 0-0.30% Ni 25-60% Cr 15-35% Mo 0-12% W 0-24% Cr (%) + 10Mo (%) + 5W (%) .gtoreq. 50% 1.5% .ltoreq. Mo (%) + 1/2W (%) .ltoreq. 12% Cu 0-2.0% Co 0-2.0% Rare Earths 0-0.10% Y 0-0.20% Mg 0-0.10% Ti 0-0.5% Ca 0-0.10% and incidental impurities balance; ______________________________________ applying, after hot working, the solid solution treatment to the alloy at a temperature of from the lower limit temperature (.degree.C.) defined by the following empirical formula: 260 log C(%)+1300 to the upper limit temperature (.degree.C. ) defined by the following empirical formula: 16Mo(%)+10W(%)+10Cr(%)+777 for a period of time of not longer than 2 hours; and applying cold working to the resulting alloy with a reduction in thickness of 10-60%. The hot working may be carried out with a reduction in thickness of 10% or more for the temperature range of not higher than the recrystallizing temperature thereof.

    摘要翻译： 公开了一种制造具有改进的耐应力腐蚀开裂性能的高强度深井套管，管道和钻杆的方法。 该方法包括以下步骤：制备合金组合物，其为：-C 15％Si = 1.0％-Mn 2.0％P / = 50％-1.5％

    Pneumatic tire with tread having central land portion, middle land portions and shoulder land portions
    8.
    发明授权
    Pneumatic tire with tread having central land portion, middle land portions and shoulder land portions 有权
    具有胎面的气动轮胎具有中心陆部，中部陆部和肩部陆地部分

    公开(公告)号：US08991449B2

    公开(公告)日：2015-03-31

    申请号：US12436916

    申请日：2009-05-07

    申请人： Akio Ikeda

    发明人： Akio Ikeda

    IPC分类号： B60C11/11 ,  B60C11/12 ,  B60C11/03

    CPC分类号： B60C11/11 ,  B60C11/0306 ,  B60C11/12 ,  B60C2011/0348 ,  B60C2011/0388 ,  B60C2011/1213

    摘要： A pneumatic tire 1 is provided in a tread portion 2 with four main circumferential grooves 3 having a groove width HG of not less than 4 mm, thereby dividing the tread portion into a central land portion 4c, a pair of middle land portions 4m, and a pair of shoulder land portions 4s. Each land portions 4c, 4m, and 4s is made of block rows Bc, Bm, and BS divided by axial grooves 5, and each block 6 has sipes 7. An axial width Wc of the central land portion 4c is 10 to 15% of a tread ground contacting width TW; an axial width Wm of the middle land portion 4m is 15 to 22% of the tread ground contacting width TW; and an axial width Ws of the shoulder land portion 4s is 15 to 22% of the tread ground contacting width TW.The middle land portion 4m is divided into an axially inner part 4mi and an axially outer part 4mo each having a groove width HG of in a range of 2 to 6 mm in the tire circumferential direction.

    摘要翻译： 充气轮胎1设置在胎面部2中，四个主圆周槽3的槽宽度HG为4mm以上，从而将胎面部分分割为中央接地部4c，一对中间接地部4m， 一对肩部陆地部分4s。 每个陆部4c，4m和4s由块排Bc，Bm和BS由轴向槽5分开，每个块6具有刀槽花纹7.中央陆部4c的轴向宽度Wc为10-15％ 胎面接地宽度TW; 中间陆部4m的轴向宽度Wm为胎面接地宽度TW的15〜22％ 胎肩接地部4s的轴向宽度Ws为胎面接地宽度TW的15〜22％。 中间地面部分4m被分成轴向内部部分4mi和轴向外部部分4mo，它们在轮胎周向方向上具有在2至6mm范围内的槽宽度HG。

    Studless tire
    9.
    发明授权
    Studless tire 有权
    无柱轮胎

    公开(公告)号：US08857483B2

    公开(公告)日：2014-10-14

    申请号：US12372480

    申请日：2009-02-17

    申请人： Akio Ikeda

    发明人： Akio Ikeda

    IPC分类号： B60C11/11 ,  B60C11/12 ,  B60C11/03 ,  B60C11/13

    CPC分类号： B60C11/1369 ,  B60C11/0306 ,  B60C11/0309 ,  B60C11/033 ,  B60C11/11 ,  B60C11/12 ,  B60C2011/0388 ,  B60C2011/1213 ,  Y10S152/03 ,  Y10S152/902

    摘要： A studless tire improved in on-ice performance as well as on-snow performance is disclosed. The tread portion is provided with tread grooves to have a land ratio in a range of from 0.65 to 0.75. The tread grooves including an axially inner circumferential groove, an axially outer circumferential groove and a plurality of sipes disposed on each side of the tire equator. The land ratio of a crown region and the land ratio of a shoulder region are each larger than the land ratio of a middle region, wherein the crown region is defined between the widthwise center lines of the inner circumferential grooves, the middle region is defined between the widthwise center line of the axially inner circumferential groove and the widthwise center line of the axially outer circumferential groove, and the shoulder region is defined between the widthwise center line of the outer circumferential groove and a tread edge of the tread portion.

    摘要翻译： 公开了一种在冰上性能以及雪上性能方面提高的无钉防滑轮胎。 胎面部分设有胎面花纹沟，花纹沟的比例范围为0.65至0.75。 所述胎面槽包括轴向内周槽，轴向外周槽和设置在所述轮胎赤道的每一侧上的多个刀槽花纹。 冠部区域的土地比率和肩部区域的土地比率分别大于中间区域的陆地比率，其中冠部区域被限定在内侧槽的宽度方向中心线之间，中间区域之间被定义在 轴向内周槽的横向中心线和轴向外周槽的宽度方向中心线和肩部区域被限定在外周槽的宽度方向中心线和胎面部的胎面边缘之间。