Martensitic stainless steels for seamless steel pipe
    1.
    发明授权
    Martensitic stainless steels for seamless steel pipe 失效
    马氏体不锈钢用于无缝钢管

    公开(公告)号:US5939018A

    公开(公告)日:1999-08-17

    申请号:US757681

    申请日:1996-11-29

    IPC分类号: C21D8/10 C22C38/04 C22C38/18

    CPC分类号: C22C38/04 C22C38/18 C21D8/105

    摘要: Martensitic stainless steels that enable the fabrication of high-strength seamless steel pipe suited for use in oil-well pipe and pipeline tubing by means of a Mannesmann plug mill or Mannesmann mandrel mill process, without the formation of defects during production. The heat workability of these steels, which contain no more than 0.30% by weight of carbon and from 11 to 14% by weight of chromium, and have a ferrite content of at least 40% at 1200.degree. C., has been vastly improved by holding the phosphorus and sulfur levels therein to no more than 0.020% and 0.003% by weight, respectively.

    摘要翻译: 马氏体不锈钢,能够通过Mannesmann塞式磨机或Mannesmann芯棒式无缝管轧机工艺制造适用于油井管道和管道管道的高强度无缝钢管,而不会在生产过程中形成缺陷。 这些钢的热​​加工性,其含有不超过0.30重量%的碳和11〜14重量%的铬,并且在1200℃下具有至少40%的铁素体含量已经大大改善了 其中的磷和硫含量分别不超过0.020%和0.003%。

    Oxidation resistant Fe-Cr-Al steel
    2.
    发明授权
    Oxidation resistant Fe-Cr-Al steel 失效
    耐氧化FE-CR-AL钢

    公开(公告)号:US5085829A

    公开(公告)日:1992-02-04

    申请号:US632058

    申请日:1990-12-21

    IPC分类号: C22C38/06 C22C38/18

    CPC分类号: C22C38/18 C22C38/06

    摘要: An oxidation-resistant Fe-Cr-Al steel, having superior workability, oxidation resistance at high temperature and corrosion resistance, has a composition which contains: up to but not more than about 0.05 wt % of C; about 0.1 to about 1.0 wt % of Si; up to but not more than about 1.0 wt % of Mn; from about 3.0 to 7.5 wt % of Cr; from about 4.5 to 6.5 wt % of Al; up to but not more than about 0.05 wt % of N; one or more elements selected from about the group consisting of 1), from about 0.01 wt % to 0.3 wt % of Zr, 2), from 0.01 wt % to 0.3 wt % of Ti, and 3), from about 0.001 wt % to 0.2 wt %, expressed as a total, of Y, La, Ce, Pr, Nd and Hf; and the balance sustantially Fe and incidental inclusions.

    Method of manufacturing bimetallic tubes
    4.
    发明授权
    Method of manufacturing bimetallic tubes 失效
    制造双金属管的方法

    公开(公告)号:US4533806A

    公开(公告)日:1985-08-06

    申请号:US383733

    申请日:1982-06-01

    IPC分类号: B23K1/002 B23K13/00 H05B6/00

    CPC分类号: B23K13/00 B23K1/002

    摘要: A method of manufacturing bimetallic tubes is disclosed. In this method, after an inner tube is inserted into an outer tube, the resulting tube assembly is heated, while pressurizing the inside of the inner tube with a gas, in the presence or absence of a solder material. When using no solder material, the materials of the inner and outer tubes are so selected that a thermal expansion coefficient of the inner tube is smaller than that of the outer tube.

    摘要翻译: 公开了制造双金属管的方法。 在这种方法中,在将内管插入外管中之后,在存在或不存在焊料材料的同时,将所得到的管组件加热,同时用气体对内管的内部加压。 当不使用焊料材料时,选择内管和外管的材料,使得内管的热膨胀系数小于外管的热膨胀系数。

    Near field optical recording medium
    5.
    发明授权
    Near field optical recording medium 失效
    近场光记录介质

    公开(公告)号:US06804189B2

    公开(公告)日:2004-10-12

    申请号:US09826853

    申请日:2001-04-06

    IPC分类号: G11B700

    摘要: A near field optical recording medium having a header area in which at least an addressing signal or a timing signal is recorded by means of a concave/convex pattern with laser light using a flying optical head. When a concave/convex portion of the concave/convex pattern is to be detected, either an effect due to a change in returning light caused by distance wherein the reflectance is changed or an effect due to a change in returning light caused by a diffraction effect is sufficiently larger, or a combination of such effects (changes by distance effect and changes by diffraction effect) are not weakened by each other, so that header information recorded by the concave/convex pattern can correctly be reproduced even in a super-high density recording medium using near field light.

    摘要翻译: 一种具有首标区域的近场光学记录介质,其中使用飞行光学头通过具有激光的凹凸图案来记录至少寻址信号或定时信号。 当要检测凹/凸图案的凹/凸部分时,由反射率变化的距离引起的返回光的变化或由衍射效应引起的返回光的变化引起的效果 或者这些效果的组合(距离效应的变化和衍射效应的变化)不会相互削弱,所以即使在超高密度下也可以正确地再现由凹凸图案记录的标题信息 使用近场光的记录介质。

    Far-infrared emitter of high emissivity and corrosion resistance and
method for the preparation thereof
    6.
    发明授权
    Far-infrared emitter of high emissivity and corrosion resistance and method for the preparation thereof 失效
    具有高发射率和耐腐蚀性的远红外发射体及其制备方法

    公开(公告)号:US5338616A

    公开(公告)日:1994-08-16

    申请号:US47613

    申请日:1993-04-08

    摘要: A far-infrared emitter of high corrosion resistance is prepared by an oxidizing heat treatment of a body made from a stainless steel of 20-35% by weight of chromium, 0.5-5.0% by weight of molybdenum, up to 3.0% by weight of manganese and up to 3.0% by weight of silicon at 900.degree.-1200.degree. C. to form an oxidized surface film having a thickness of at least 0.2 mg/cm.sup.2. Further, a far-infrared emitter of a high emissivity approximating a black body is prepared by subjecting a body made from a stainless steel of 10-35% by weight of chromium, 1.0-4.0% by weight of silicon and up to 3.0% by weight of manganese to a blasting treatment to roughen the surface followed by an oxidizing heat treatment at 900.degree.-1200.degree. C. to form an oxide film on the surface in the form of protrusions having a length of at least 5 .mu.m.

    摘要翻译: 通过氧化热处理由20-35重量%的铬,0.5-5.0重量%的钼,至多3.0重量%的钼的不锈钢制成的远红外发射体, 锰和在900-1200℃下高达3.0重量%的硅,以形成厚度为至少0.2mg / cm 2的氧化表面膜。 此外,通过将由10-35重量%的铬,1.0-4.0重量%的硅和不超过3.0重量%的由不锈钢制成的体不锈钢制成的主体由高达3.0%的硅制成的远红外发射体 重量的锰进行喷砂处理以使表面粗糙化,然后在900-1200℃下进行氧化热处理,以在表面上形成具有至少5μm的长度的突起形式的氧化膜。

    Ear-infrared emitter of high emissivity and corrosion resistance and
method for the preparation thereof
    9.
    发明授权
    Ear-infrared emitter of high emissivity and corrosion resistance and method for the preparation thereof 失效
    高发射率和耐腐蚀性的耳红外发射体及其制备方法

    公开(公告)号:US5213629A

    公开(公告)日:1993-05-25

    申请号:US877191

    申请日:1992-05-01

    摘要: A far-infrared emitter of high corrosion resistance is prepared by an oxidizing heat treatment of a body made from a stainless steel of 20-35% by weight of chromium, 0.5-5.0% by weight of molybdenum, up to 3.0% by weight of manganese and up to 3.0% by weight of silicon at 900.degree.-1200 .degree. C. to form an oxidized surface film having a thickness of at least 0.2 mg/cm.sup.2. Further, a far-infrared emitter of a high emissivity approximating a black body is prepared by subjecting a body made from a stainless steel of 10-35% by weight of chromium, 1.0-4.0% by weight of silicon and up to 3.0% by weight of manganese to a blasting treatment to roughen the surface followed by an oxidizing heat treatment at 900.degree.-1200 .degree. C. to form an oxide film on the surface in the form of protrusions having a length of at least 5 .mu.m.

    摘要翻译: 通过氧化热处理由20-35重量%的铬,0.5-5.0重量%的钼,至多3.0重量%的钼的不锈钢制成的远红外发射体, 锰和在900-1200℃下高达3.0重量%的硅,以形成厚度为至少0.2mg / cm 2的氧化表面膜。 此外,通过将由10-35重量%的铬,1.0-4.0重量%的硅和不超过3.0重量%的由不锈钢制成的体不锈钢制成的主体由高达3.0%的硅制成的远红外发射体 重量的锰进行喷砂处理以使表面粗糙化,然后在900-1200℃下进行氧化热处理,以在表面上形成具有至少5μm的长度的突起形式的氧化膜。

    Fe-Cr-Al stainless steel having high oxidation resistance and spalling
resistance and Fe-Cr-Al steel for catalyst substrate of catalytic
converter
    10.
    发明授权
    Fe-Cr-Al stainless steel having high oxidation resistance and spalling resistance and Fe-Cr-Al steel for catalyst substrate of catalytic converter 失效
    具有高抗氧化性和耐剥落性的Fe-Cr-Al不锈钢和催化转化器催化剂底物Fe-Cr-Al钢

    公开(公告)号:US4904540A

    公开(公告)日:1990-02-27

    申请号:US266264

    申请日:1988-10-26

    IPC分类号: C22C38/18 F01N3/28

    摘要: A high oxidotion resistance Fe-Cr-Al alloy stainless steel foil suitable for forming catalytic converters, specifically for forming automotive catalytic converters. The alloy includes:C: less than or equal to 0.02 Wt %;Si: less than or equal to 1.0 Wt %;Cr: in a range greater than or equal to 14 Wt % to less than or equal to 27 Wt %;Al: in a range greater than or equal to 3.5 Wt % to less than or equal to 6.5 Wt %;La: in a range greater than 0.05 Wt % and less than or equal to 0.20 Wt %;Ce: less than or equal to 0.01 Wt % and the remainder being composed of Fe and inevitable impurities, the foil having a thickness less than or equal to 80 .mu.m.

    摘要翻译: 适用于形成催化转化器的高耐氧化性Fe-Cr-Al合金不锈钢箔,专门用于形成汽车催化转化器。 该合金包括:C:小于或等于0.02Wt%; Si:小于或等于1.0Wt%; Cr:在大于或等于14Wt%至小于或等于27Wt%的范围内; Al:在大于或等于3.5Wt%至小于或等于6.5Wt%的范围内; La:在大于0.05Wt%且小于或等于0.20Wt%的范围内; Ce:小于等于0.01重量%,其余由Fe和不可避免的杂质构成,箔的厚度小于等于80μm。