High-strength, notch-ductile precipitation-hardening stainless steel
alloy
    4.
    发明授权
    High-strength, notch-ductile precipitation-hardening stainless steel alloy 失效
    高强度,缺口韧性沉淀硬化不锈钢合金

    公开(公告)号:US5681528A

    公开(公告)日:1997-10-28

    申请号:US533159

    申请日:1995-09-25

    IPC分类号: C22C38/00 C22C38/50 C22C38/54

    CPC分类号: C22C38/50

    摘要: A precipitation hardenable, martensitic stainless steel alloy is disclosed consisting essentially of, in weight percent, about ______________________________________ C 0.03 max Mn 1.0 max Si 0.75 max P 0.040 max S 0.020 max Cr 10-13 Ni 10.5-11.6 Ti 1.5-1.8 Mo 0.25-1.5 Cu 0.95 max Al 0.25 max Nb 0.3 max B 0.010 max N 0.030 max ______________________________________ the balance essentially iron. The disclosed alloy provides a unique combination of stress-corrosion cracking resistance, strength, and notch toughness.

    摘要翻译: 公开了一种可沉淀硬化的马氏体不锈钢合金,其基本上以重量百分比计,约-C 0.03最大--Mn 1.0最大 - Si 0.75最大 - P 0.040最大 - S 0.020最大 - Cr 10-13-Ni 10.5-11.6- Ti 1.5-1.8 - Mo 0.25-1.5 - Cu 0.95最大 - Al 0.25最大 - Nb 0.3最大 - B 0.010最大 - N 0.030最大 - 余量基本上是铁。 所公开的合金提供了耐应力腐蚀开裂性,强度和缺口韧性的独特组合。

    High-strength, titanium-bearing, powder metallurgy stainless steel article with enhanced machinability
    8.
    发明授权
    High-strength, titanium-bearing, powder metallurgy stainless steel article with enhanced machinability 有权
    高强度,钛合金,粉末冶金不锈钢制品具有增强的机械加工性能

    公开(公告)号:US06238455B1

    公开(公告)日:2001-05-29

    申请号:US09425664

    申请日:1999-10-22

    IPC分类号: C22C104

    摘要: A powder metallurgy article formed of a sulfur-containing, precipitation-hardenable, stainless steel alloy is described. The article has a unique combination of strength, ductility, processability, and machinability. The powder metallurgy article is formed of a stainless steel alloy having the following composition in weight percent. C 0.03 max. Mn 1.0 max. Si 0.75 max. P 0.040 max. S 0.010-0.050 Cr 10-14 Ni 6-12 Ti 0.4-2.5 Mo 6 max. B 0.010 max. Cu 4 max. Co 9 max. Nb 1 max. Al 1 max. Ta 2.5 max. N 0.03 max. The balance of the alloy is iron and the usual impurities. The powder metallurgy article according to this invention is characterized by a fine dispersions of titanium sulfides that are not greater than about 5 &mgr;m in major dimension. A method of preparing the powder metallurgy article is also described.

    摘要翻译: 描述了由含硫的沉淀可硬化的不锈钢合金形成的粉末冶金制品。 该产品具有强度,延展性,加工性和可加工性的独特组合。 粉末冶金制品由不锈钢合金制成,其重量百分比如下:合金的平衡是铁和通常的杂质。 根据本发明的粉末冶金制品的特征在于在主要尺寸上不大于约5μm的硫化钛的细分散体。 还描述了制备粉末冶金制品的方法。

    Process for stiffening hats
    10.
    发明授权
    Process for stiffening hats 失效
    加强帽子的过程

    公开(公告)号:US5523039A

    公开(公告)日:1996-06-04

    申请号:US237671

    申请日:1994-05-04

    申请人: James W. Martin

    发明人: James W. Martin

    摘要: In the manufacture of hats, the shellac stiffening agent typically used for imparting extra stiffness to the final hat product is replaced with an aqueous acrylic or acrylic/styrene emulsion or dispersion having a pH of 4 to 7, the acrylic or methacrylic polymer or copolymer in the emulsion having an acid value of 80 to 120 mg KOH/gm and a glass transition temperature of 17.degree. to 35.degree. C.

    摘要翻译: 在帽子的制造中,通常用于赋予最终帽子产品额外刚度的虫胶硬化剂被pH为4至7的丙烯酸或丙烯酸/苯乙烯乳液或分散体代替,丙烯酸或甲基丙烯酸聚合物或共聚物 所述乳液的酸值为80〜120mg KOH / gm,玻璃化转变温度为17〜35℃。