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    • 4. 发明申请
    • PISTON RING MATERIAL FOR INTERNAL COMBUSTION ENGINE
    • 内燃机活塞环材料
    • US20110018207A1
    • 2011-01-27
    • US12934575
    • 2009-03-17
    • Katsuhiko OhishiToshihiro UeharaKunichika Kubota
    • Katsuhiko OhishiToshihiro UeharaKunichika Kubota
    • F16J9/00
    • C22C38/02C21D9/40C22C38/04C22C38/06C22C38/18C22C38/34C22C38/42C22C38/44C22C38/50C22C38/58C22C38/60
    • A piston ring material is provided which retains excellent mechanical properties and processability, which are required of piston ring materials, and has wearing resistance and scuffing resistance, which are sliding properties required of piston rings. The piston ring material, which is for use in internal combustion engines, contains, in terms of mass %, 0.3-0.8% carbon, 0.1-3.0% silicon, 0.1-3.0% manganese, 0.01-0.3% sulfur, 0.1-2.0% chromium, and 0.05-2.0% the sum of titanium and/or zirconium, with the remainder being iron and incidental impurities. The titanium and/or zirconium contained in the piston ring material and the sulfur contained therein satisfy the following relationship. [Ti (%)+½Zr (%)]/S (%)≦5.0 Preferably, the material may contain one or more members selected from up to 1.0% copper, less than 3.0% molybdenum, up to 1.0% aluminum, and less than 2.0% nickel, in terms of mass %.
    • 提供了活塞环材料,其保持了活塞环材料所需的优异的机械性能和加工性能,并且具有耐磨性和抗划伤性,这是活塞环所需的滑动性能。 用于内燃机的活塞环材料以质量%计含有0.3-0.8%的碳,0.1-3.0%的硅,0.1-3.0%的锰,0.01-0.3%的硫,0.1-2.0%的硫, 铬和0.05-2.0%的钛和/或锆的总和,其余为铁和附带的杂质。 包含在活塞环材料中的钛和/或其中所含的硫满足以下关系。 [Ti(%)+½Zr(%)] / S(%)≦̸ 5.0优选地,该材料可以包含一种或多种选自最高达1.0%的铜,小于3.0%的钼,至多1.0%的铝,以及 小于2.0%的镍,以质量%计。
    • 5. 发明授权
    • Piston ring material for internal combustion engine
    • 内燃机活塞环材料
    • US08480821B2
    • 2013-07-09
    • US12934575
    • 2009-03-17
    • Katsuhiko OhishiToshihiro UeharaKunichika Kubota
    • Katsuhiko OhishiToshihiro UeharaKunichika Kubota
    • C22C38/00F16J9/00
    • C22C38/02C21D9/40C22C38/04C22C38/06C22C38/18C22C38/34C22C38/42C22C38/44C22C38/50C22C38/58C22C38/60
    • A piston ring material is provided which retains excellent mechanical properties and processability, which are required of piston ring materials, and has wearing resistance and scuffing resistance, which are sliding properties required of piston rings. The piston ring material, which is for use in internal combustion engines, contains, in terms of mass %, 0.3-0.8% carbon, 0.1-3.0% silicon, 0.1-3.0% manganese, 0.01-0.3% sulfur, 0.1-2.0% chromium, and 0.05-2.0% the sum of titanium and/or zirconium, with the remainder being iron and incidental impurities. The titanium and/or zirconium contained in the piston ring material and the sulfur contained therein satisfy the following relationship. [Ti (%)+½Zr (%)]/S (%)≦5.0 Preferably, the material may contain one or more members selected from up to 1.0% copper, less than 3.0% molybdenum, up to 1.0% aluminum, and less than 2.0% nickel, in terms of mass %.
    • 提供了活塞环材料,其保持了活塞环材料所需的优异的机械性能和加工性能,并且具有耐磨性和抗划伤性,这是活塞环所需的滑动性能。 用于内燃机的活塞环材料以质量%计含有0.3-0.8%的碳,0.1-3.0%的硅,0.1-3.0%的锰,0.01-0.3%的硫,0.1-2.0%的硫, 铬和0.05-2.0%的钛和/或锆的总和,其余为铁和附带的杂质。 包含在活塞环材料中的钛和/或其中所含的硫满足以下关系。 [Ti(%)+½Zr(%)] / S(%)@ 5.0优选地,该材料可以包含一种或多种选自最高达1.0%的铜,小于3.0%的钼,至多1.0%的铝和更少的成分 超过2.0%的镍,以质量%计。
    • 8. 发明授权
    • Heat-resisting steel for engine valves excellent in high-temperature strength
    • 发动机气门用耐热钢,耐高温性能优良
    • US08663549B2
    • 2014-03-04
    • US12998209
    • 2010-06-23
    • Katsuhiko OhishiAkihiro Toji
    • Katsuhiko OhishiAkihiro Toji
    • C22C38/42C22C38/44C22C38/48
    • C22C38/40C21D9/0068C22C38/001C22C38/002C22C38/02C22C38/04C22C38/42C22C38/44C22C38/48C22C38/54C22C38/58F01L3/02F01L2101/00
    • To provide an inexpensive heat-resisting steel for engine valves by causing Fe-based heat-resisting steel to exhibit high temperature strength not inferior to that of Ni-based heat-resisting steel. A heat-resisting steel for engine valves excellent in high temperature strength containing, in % by mass, C: 0.20 to 0.50%, Si: 1.0% or less, Mn: 5.0% or less, P: 0.1 to 0.5%, Ni: 8.0 to 15.0%, Cr: 16.0 to 25.0%, Mo: 2.0% or less (including 0%), Cu: 0.5% or less, Nb: 1.0% or less (including 0%), W: 2.0% or less (including 0%), N: 0.02 to 0.30%, B: 0.01% or less, and remnants of Fe and impurities, wherein the heat-resisting steel for engine valves satisfies formulae below: 156.42P(%)+0.91Mo(%)+0.73W(%)−12.27Nb(%)+220.96N(%)+120.59≧170  Formula (1) 13.70P(%)−6.97Mo(%)−4.32W(%)−3.29Nb(%)+119.10N(%)+27.75≧25  Formula (2).
    • 通过使Fe系耐热钢呈现出不劣于Ni系耐热钢的高温强度,为发动机阀提供便宜的耐热钢。 1.一种耐高温发动机用耐热钢,以质量%计含有C:0.20〜0.50%,Si:1.0%以下,Mn:5.0%以下,P:0.1〜0.5%,Ni: 8.0〜15.0%,Cr:16.0〜25.0%,Mo:2.0%以下(含0%),Cu:0.5%以下,Nb:1.0%以下(含0%),W:2.0% 包括0%),N:0.02〜0.30%,B:0.01%以下,以及Fe和杂质的残留物,其中,发动机气门用耐热钢满足下式:156.42P(%)+ 0.91Mo + 0.73W(%) - 12.27Nb(%)+ 220.96N(%)+ 120.59> = 170(1)13.70P(%) - 6.97Mo(%) - 4.32W(%) - 3.29Nb(%)+ (10.2)(25)(27)