Corrosion and wear resistant iron alloy
    1.
    发明授权
    Corrosion and wear resistant iron alloy 失效
    耐腐蚀和耐磨铁合金

    公开(公告)号:US5804137A

    公开(公告)日:1998-09-08

    申请号:US784685

    申请日:1997-01-22

    摘要: Erosion and wear resistant iron alloy, comprising: Cr 20.0-36.0% by weight, B 2.5-5.0% by weight, Mn 0.5-3.2% by weight, Si 0.05-0.6% by weight, Mo 0.3-2.5% by weight, V 0.05-0.3% by weight, Nb 0.03-0.3% by weight, P 0.5% by weight or less, C 0.05-0.3% by weight, and a trace of unavoidable impurities, which confers superior corrosion and wear resistance upon abraded or corroded portions by coating or molding.

    摘要翻译: 耐侵蚀和耐磨铁合金,其包含:Cr 20.0-36.0重量%,B 2.5-5.0重量%,Mn 0.5-3.2重量%,Si 0.05-0.6重量%,Mo 0.3-2.5重量%,V 0.05-0.3重量%,Nb 0.03-0.3重量%,P 0.5重量%或更少,C 0.05-0.3重量%,以及痕量的不可避免的杂质,这在磨损或腐蚀部分具有优异的耐腐蚀和耐磨性 通过涂覆或模塑。

    Ferrous alloy composition and manufacture and coating methods of
mechanical products using the same
    2.
    发明授权
    Ferrous alloy composition and manufacture and coating methods of mechanical products using the same 失效
    铁合金组成和机械产品的制造和涂布方法使用相同

    公开(公告)号:US5643531A

    公开(公告)日:1997-07-01

    申请号:US340772

    申请日:1994-11-16

    CPC分类号: C22C38/34 C22C38/32

    摘要: Disclosed is a manufacture and coating method of mechanical products using ferrous alloy in order to improve wear, corrosion, and heat resistances of the mechanical products which are exposed to friction and wear environments with or without lubricating conditions. The mechanical products of the invention include rotation contact parts such as bush and shaft in the inside of caterpillar roller, mechanical seal under high surface pressure, and drawing dice and plug under sliding friction stress. A ferrous alloy composition used for coating in the invention comprises Cr:18.0-42.0 wt %, Mn: 1.0-3.2 wt %, B:3.0-4.5 wt %, Si: 1.0-3.0 wt %, C: less than 0.3 wt %, inevitably incorporated impurities, and Fe for the rest of content. A ferrous alloy composition used for manufacturing bush type product comprises C: less than 4.5%, Si:2.5%, Mn:less than 2%, Cr:0.5-35%, and Fe for the rest of content. The mechanical products prepared by the material of the invention exhibits increased durability and can be used at the place of the expensive conventional mechanical products.

    摘要翻译: 公开了使用铁合金的机械产品的制造和涂布方法,以改善暴露于具有或不具有润滑条件的摩擦和磨损环境的机械产品的磨损,腐蚀和耐热性。 本发明的机械产品包括在履带式滚筒内部的衬套和轴的旋转接触部分,在高表面压力下的机械密封,以及在滑动摩擦应力下的拉伸模和插头。 用于本发明涂层的铁合金组合物包括:Cr:18.0-42.0wt%,Mn:1.0-3.2wt%,B:3.0-4.5wt%,Si:1.0-3.0wt%,C:小于0.3wt% ,不可避免地掺杂杂质,而Fe则用于其余部分。 用于制造衬套型产品的铁合金组合物包括C:小于4.5%,Si:2.5%,Mn:小于2%,Cr:0.5-35%,剩余部分含有Fe。 由本发明的材料制备的机械产品表现出增加的耐久性,并且可用于代价昂贵的传统机械产品。

    High toughness and high strength untempered steel and processing method
thereof
    3.
    发明授权
    High toughness and high strength untempered steel and processing method thereof 失效
    高韧性和高强度未回火钢及其加工方法

    公开(公告)号:US5527401A

    公开(公告)日:1996-06-18

    申请号:US265068

    申请日:1994-06-28

    申请人: Kang-Hyung Kim

    发明人: Kang-Hyung Kim

    CPC分类号: C22C38/14 C21D8/00

    摘要: The present invention is concerned about high toughness and high strength untempered steel having the mechanical properties equivalent to or better than those of tempered steel and processing method thereof, more particularly, the high toughness and high strength untempered steel having the tensile strength higher than 90 kgf/mm.sup.2 with the impact toughness higher than 5 kgf-m/cm.sup.2 in the KS 3 specimen, and processing method thereof.

    摘要翻译: 本发明涉及具有等同于或优于回火钢的机械性能的高韧性和高强度未回火钢及其加工方法,更具体地说,具有拉伸强度高于90kgf的高韧性和高强度未回火钢 / mm2,KS3试样的冲击韧性高于5kgf-m / cm2,其处理方法。

    Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production
    4.
    发明申请
    Process for Production of a Carboxylic Acid/Diol Mixture Suitable for Use in Polyester Production 审中-公开
    适用于聚酯生产的羧酸/二醇混合物的生产方法

    公开(公告)号:US20080304997A1

    公开(公告)日:2008-12-11

    申请号:US11547298

    申请日:2005-03-11

    申请人: Kang-Hyung Kim

    发明人: Kang-Hyung Kim

    CPC分类号: C22C23/02 C22C23/06

    摘要: Disclosed is a wrought magnesium alloy having excellent strength and extrusion or rolling formability, and a method of producing the same. The wrought magnesium alloy comprises 0.1-1.5 at % group IIIa, 1.0-4.0 at % group IIIb, 0.35 at % or less of one selected from the group consisting of groups IIa, IVa, VIIa, IVb, and a mixture thereof, 1.0 at % or less of group IIb, and a balance of Mg and unavoidable impurities and thus has a second phase composite microstructure. The wrought magnesium alloy of the present invention has high strength, toughness, and formability in addition to the electromagnetic wave shield ability of magnesium. Accordingly, the wrought magnesium alloy is a material useful to portable electronic goods, such as notebook personal computers, mobile phones, digital cameras, camcorders, CD players, PDA, or MP3 players, automotive parts, such as engine room hoods, oil pans, or inner panel of door, or structural parts for airplane.

    摘要翻译: 公开了具有优异的强度和挤出成形性的锻造镁合金及其制造方法。 锻造的镁合金包含0.1-1.5at%的IIIa族,1.0-4.0at%的IIIb族,0.35at%或更少的选自IIa,IVa,VIIa,IVb及其混合物的组合, IIb%以下,余量为Mg和不可避免的杂质,因此具有第二相复合组织。 除了镁的电磁波屏蔽能力外,本发明的锻造镁合金具有高强度,韧性和成形性。 因此,锻造的镁合金是用于便携式电子产品的材料,例如笔记本个人计算机,移动电话,数码相机,摄像机,CD播放器,PDA或MP3播放器,汽车部件,例如发动机罩,油罐, 或门的内板,或飞机的结构部件。

    Engine tappet of high abrasion resistance and method for manufacturing
the same
    5.
    发明授权
    Engine tappet of high abrasion resistance and method for manufacturing the same 失效
    高耐磨性的发动机挺杆及其制造方法

    公开(公告)号:US5993978A

    公开(公告)日:1999-11-30

    申请号:US993082

    申请日:1997-12-18

    摘要: An engine tappet of high abrasion resistance, whose surface is coated with a sintered layer. This sintered layer is prepared from a binder comprising about 50-100 wt % of nickel powder, about 0-45 wt % of Cr, about 0-35 wt % of Mo, about 0-10 wt % of Al, about 0-25 wt % of Co, about 0-10 wt % of Cu and inevitably mixed impurities; and from hard particles selected from the group consisting of carbides, nitrides, borides and the mixtures thereof. Also, there is provided an engine tappet which is coated with an alloy powder composition comprising about 44-88 wt % of WC, about 4-10 wt % of Co, about 15-50 wt % of Ni, about 5-20 wt % of Cr, about 0.5-4 wt % of B, about 2-4 wt % of Fe, about 0.5-4 wt % of Si, about up to 1.0 wt % of C and inevitably mixed impurities.

    摘要翻译: 具有高耐磨性的发动机挺杆,其表面涂覆有烧结层。 该烧结层由包含约50-100重量%的镍粉末,约0-45重量%的Cr,约0-35重量%的Mo,约0-10重量%的Al,约0-25 Co重量%,约0-10重量%的Cu和不可避免的混合杂质; 以及选自碳化物,氮化物,硼化物及其混合物的硬质颗粒。 另外,提供了一种发动机挺杆,该发动机挺杆包括合金粉末组合物,该合金粉末组合物包括约44-88wt%的WC,约4-10wt%的Co,约15-50wt%的Ni,约5-20wt% 的Cr,约0.5-4wt%的B,约2-4wt%的Fe,约0.5-4wt%的Si,约至多1.0wt%的C和不可避免的混合的杂质。