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    • 1. 发明授权
    • High-strength stainless steel for use as material of fuel injection
nozzle or needle for internal combustion engine, fuel injection nozzle
made of the stainless steel
    • 高强度不锈钢用作燃油喷嘴或内燃机针,不锈钢燃油喷嘴
    • US5492573A
    • 1996-02-20
    • US229005
    • 1994-04-18
    • Katsuaki FukushimaToshio OkunoMasakazu ItoKeizo TakeuchiToshiaki Terada
    • Katsuaki FukushimaToshio OkunoMasakazu ItoKeizo TakeuchiToshiaki Terada
    • C22C38/00C22C38/26C22C38/30F02M61/16F02M61/18C22C38/22
    • F02M61/166C22C38/26C22C38/30
    • A high-strength stainless steel for use as a material of a fuel injection nozzle or a fuel injection needle of an internal combustion engine. The stainless steel is an as annealed martensitic stainless steel which exhibits a hardness not less than HRC 58 after quenching and tempering heat-treatment. The limit swaging ratio of said as annealed martensitic stainless steel is not less than 75%. The hardness of said as annealed martensitic stainless steel is not higher than HB 157. Preferably, the number of carbides having sizes of 0.2 .mu.m or less occupies not more than 50% of the total carbides, and wherein the limit swaging ratio of said as annealed martensitic stainless steel is not less than 75% or the hardness of said as annealed martensitic stainless steel is not higher than HB 157. Preferably, the stainless steel has a chemical composition containing, by weight: 0.4 to 0.6% of C; not more than 0.5% of Si; not more than 0.5% of Mn; 8.0 to 13.0% of Cr; 0.1 to 2.0% of one or both of W and Mo in terms of W/2+Mo; one or both of 0.05 to 1.0% of one or both of Nb and V in terms of Nb/2+V, and 0.2 to 2.0% of Co; and the balance substantially Fe and incidental impurities.
    • 一种高强度不锈钢,用作燃料喷嘴或内燃机的燃料喷射针的材料。 不锈钢是退火马氏体不锈钢,淬火回火热处理后的硬度不低于HRC 58。 所述退火马氏体不锈钢的极限锻压比不小于75%。 所述退火的马氏体系不锈钢的硬度不高于HB157。优选地,尺寸为0.2μm以下的碳化物的数量不超过总碳化物的50%,并且其中所述作为退火的马氏体不锈钢的极限锻造比 退火的马氏体不锈钢不小于75%,或者所述退火的马氏体不锈钢的硬度不高于HB157。优选地,不锈钢具有以重量计含有:C = 0.4-0.6%的化学组成; 不超过0.5%的Si; 不超过0.5%的Mn; 8.0〜13.0%的Cr; 以W / 2 + Mo计,W和Mo中的一种或两种为0.1〜2.0% 以Nb / 2 + V表示的Nb和V中的一种或两种中的一种或两种中的一种或两种,以及Co的0.2〜2.0% 余量基本上是Fe和杂质。
    • 3. 发明授权
    • Composite magnetic member, process for producing the member and electromagnetic valve using the member
    • 复合磁性构件,用于制造构件的方法和使用该构件的电磁阀
    • US06187459B1
    • 2001-02-13
    • US09149082
    • 1998-09-08
    • Yoshitada KatayamaKeizo TakeuchiToshiaki TeradaShinya SugiuraHakaru SasakiTsutomu Inui
    • Yoshitada KatayamaKeizo TakeuchiToshiaki TeradaShinya SugiuraHakaru SasakiTsutomu Inui
    • G11B566
    • H01F1/147B60T8/3615C21D8/12C21D8/1294F15B13/044F16K31/06H01F1/0302H01F1/0306H01F1/047H01F7/081Y10S428/90
    • A metallic member including not more than 0.6% C, 12 to 19% Cr, 6 to 12% Ni, not more than 2% Mn, not more than 2% Mo, not more than 1% Nb and the balance being Fe and inevitable impurities, where Hirayama's equivalent H eq=[Ni %]+1.05 [Mn %]+0.65 [Cr %]+0.35 [Si %]+12.6 [C %] is 20 to 23%; Nickel equivalent Ni eq=[Ni %]+30 [C %]+0.5 [Mn %] is 9 to 12%, and Chromium equivalent Cr eq=[Cr %]+[Mo %]+1.5 [Si %]+0.5 [Nb %] is 16 to 19, wherein % is by weight, is made to have at least one ferromagnetized part having a magnetic flux density B4000 of not less than 0.3T and at least one non-magnetized part having a relative magnetic permeability &mgr; of not more than 1.2 at a temperature of not less than −40° C., as continuously and integrally formed. The non-magnetized part has crystal grain sizes of not more than 30 &mgr;m. The metallic member is subjected to by ferromagnetization and successive local non-magnetization of part or parts of the ferromagnetized member, and the thus obtained composite magnetic member is employed as a support member such as a sleeve in electromagnetic valves.
    • 包含不超过0.6%C,12-19%Cr,6-12%Ni,不大于2%Mn,不超过2%Mo,不大于1%Nb和余量为Fe和不可避免的金属构件 杂质,其中日山的等效H eq = [Ni%] + 1.05 [Mn%] + 0.65 [Cr%] + 0.35 [Si%] + 12.6 [C%]为20〜23%;镍当量Ni eq = [Ni% +30 [C%] +0.5 [Mn%]为9〜12%,铬当量Cr eq = [Cr%] + [Mo%] + 1.5 [Si%] +0.5 [Nb%]为16〜19, %的重量比被制成具有磁通密度B4000至少为0.3T的至少一个铁磁性部分和至少一个在非温度下的相对导磁率μ不大于1.2的非磁化部分 小于-40℃,连续地和一体地形成。 非磁化部件的晶粒尺寸不超过30μm。 金属构件通过铁磁性和铁磁性构件的一部分或多个部分的连续的局部非磁化受到影响,由此获得的复合磁性构件用作诸如电磁阀中的套筒的支撑构件。
    • 5. 发明授权
    • Method of manufacturing mechanical parts from metal scrap
    • 从金属废料制造机械零件的方法
    • US4272877A
    • 1981-06-16
    • US911221
    • 1978-05-31
    • Keizo TakeuchiYoshio IwaiTadashi YamanakaTatsuo Miura
    • Keizo TakeuchiYoshio IwaiTadashi YamanakaTatsuo Miura
    • B21J5/00B21K1/76B22F8/00B23Q17/00
    • B22F8/00B21J5/00B21K1/28Y02P10/24Y02W30/541Y10T29/49753
    • A method of manufacturing mechanical parts from the raw material of metal scrap such as shavings and turnings of castings and steel and press chips of steel, includes the steps of: preparing the metal scrap including shavings and turnings; forming a billet by pressing metal scrap; heating the billet to the forging temperature, whereby a satisfactory plasticity is given to the billet for plastic deformation of metal scrap in the succeeding process; and forming the heated billet into a forged workpiece by use of a semi-closed forging die. The shape of the billet is determined such that, in this forging step, the respective portions of the billet are subjected to plastic deformation having a given plastic deformation rate, whereby material flow sufficient to generate metallic bond at the respective portions is caused, and burred portions are formed on portions of the forged workpiece mainly subjected to extrusion press during die-forging.
    • 从金属屑的原料制造机械部件的方法,例如铸件和钢的切削屑和钢板以及钢的压制切屑,包括以下步骤:制备包括刨削和切屑的金属屑; 通过冲压金属屑形成坯料; 将坯料加热到锻造温度,从而在随后的过程中对钢坯进行塑性变形的令人满意的塑性; 并且通过使用半封闭的锻造模具将加热的坯料形成锻造的工件。 确定坯料的形状,使得在该锻造工序中,对坯料的各部分进行具有给定塑性变形率的塑性变形,由此产生足以在各部分产生金属粘结的材料流动并且被毛刺 在锻造时主要经受挤压的锻造工件的部分上形成有部分。
    • 8. 发明授权
    • Aluminum alloy composite material for brazing
    • 铝合金复合材料用于钎焊
    • US5350436A
    • 1994-09-27
    • US156827
    • 1993-11-24
    • Osamu TakezoeJun TakigawaTadashi OkamotoMituo HashiuraSunao FukudaKeizo TakeuchiYasuaki Isobe
    • Osamu TakezoeJun TakigawaTadashi OkamotoMituo HashiuraSunao FukudaKeizo TakeuchiYasuaki Isobe
    • B23K35/02B23K35/28B32B15/01F28F13/12F28F21/08B32B15/20
    • C22C21/00B23K35/286B32B15/016C22C21/02C22C21/06C22C21/10F28F13/12F28F21/084F28F21/089B23K35/0238Y10T428/12028Y10T428/12764
    • An aluminum alloy composite material for brazing has a core member, an Al--Si filler member clad on one surface of the core member and an aluminum alloy cladding member clad on the other side of the core member. The core member is made of an aluminum alloy containing 0.3 to 1.3 wt. % of Si, 0.3 to 1.5 wt. % of Mn, 0.02 to 0.3 wt. % of Ti, and, as required, 0.3 wt. % or less of Cr and 0.2 wt. % or less of Zr, the content of Mg being restricted to 0.2 wt. % or less and the content of the Cu being restricted to 0.2 wt. % or less as an impurity. The cladding member is made of an aluminum alloy containing 0.3 to 3 wt. % of Mg, 5 wt. % or less of Zn, 0.1 to 1.0 wt. % of Si. The thickness of the core member is preferably, 2.5 times or more greater than that of the filler member, falling within a range of 0.1 to 1 mm. With this, it is possible to obtain an aluminum alloy composite material which cannot degraded in brazability and corrosion resistance even when brazed by the brazing method with noncorrosive flux and which has enough high strength to be used for a material of a high-strength heat exchanger, highly improved corrosion resistance and excellent brazability.
    • 用于钎焊的铝合金复合材料具有芯构件,包覆在芯构件的一个表面上的Al-Si填充构件和在芯构件的另一侧上包覆的铝合金覆层构件。 芯构件由含有0.3〜1.3重量%的铝合金制成。 %的Si,0.3〜1.5wt。 %的Mn,0.02〜0.3wt。 %的Ti,根据需要,0.3重量% Cr%以下,0.2重量%以下。 %以下的Zr,Mg的含量限定为0.2重量%。 %以下,Cu的含量限制在0.2重量%左右。 %以下的杂质。 包层部件由含有0.3〜3重量%的铝合金制成。 %的Mg,5wt。 %以下的Zn,0.1〜1.0wt。 %的Si。 芯构件的厚度优选为填充构件的厚度的2.5倍以上,落在0.1〜1mm的范围内。 由此,可以获得即使用非腐蚀性焊剂钎焊法钎焊而且钎焊耐腐蚀性也不劣化的铝合金复合材料,其具有足够高的强度用于高强度热交换器的材料 耐腐蚀性高,钎焊性优异。