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    • 21. 发明申请
    • Crankshaft and method for manufacturing same
    • 曲轴及其制造方法
    • US20060225814A1
    • 2006-10-12
    • US11401450
    • 2006-04-11
    • Koki MizunoHideki MatsudaSeiji KobayashiHisato TakeuchiKatsunori TakadaYutaka Kurebayashi
    • Koki MizunoHideki MatsudaSeiji KobayashiHisato TakeuchiKatsunori TakadaYutaka Kurebayashi
    • C23C8/32
    • C23C8/32C23C8/02
    • A surface of a steel, as a material for a crankshaft, is nitrocarburized. The steel contains, as alloy elements C having a content 0.10 mass % or more 0.30 mass % or less, Si having a content 0.5 mass % or more and 0.3 mass % or less, Mn having a content 0.3 mass % or more and 1.5 mass % or less, Mo having a content 0.8 mass % or more and 2.0 mass % or less, Cr having a content 0.1 mass % or more and 1.0 mass % or less, and V having a content 0.1 mass % or more and 0.5 mass % or less, with a remainder consisting of Fe and inevitable impurities. The contents of the alloy elements fall within ranges: 2.0 mass %≦Mn+Cr+Mo≦3.0 mass %, 2.3 mass %≦C+Mo+5V ≦3.7 mass %, and 2.7 mass %≦2.16 Cr+Mo+2.54V≦4.0 mass %. If a steel sample extracted from a central portion of the nitrocarburized steel free from an influence of the nitrocarburizing treatment is austenitized at 1200° C. for one hour, and cooled to a room temperature so that a cooling rate at which the steel sample passes through a temperature range between 900° C. and 300° C. is 0.5° C./second, then an area percentage of a bainite structure in steel structures is 80% or more and a Vickers hardness measured at a cross section is 260 Hv or more and 330 Hv or less. A surface hardness of a nitrocarburized layer is 650 Hv or more, a formation depth of the nitrocarburized layer is 0.3 mm or more, and a hardness of the central portion is 340 Hv or more. Thereby a crankshaft which is excellent both in the machinability and in fatigue strength, even after nitrocarburizing treatment on the surface, is provided.
    • 作为曲轴的材料的钢的表面被氮碳共渗。 钢含有含量为0.10质量%以上且0.30质量%以下的合金成分C,含有0.5质量%以上且0.3质量%以下的Si,含有0.3质量%以上且1.5质量%的Mn %以下,含量为0.8质量%以上且2.0质量%以下的Mo为0.1质量%以上且1.0质量%以下的Cr,含量为0.1质量%以上至0.5质量%的V以下, 或更少,余量由Fe和不可避免的杂质组成。 合金元素含量在2.0质量%<= Mn + Cr + Mo <= 3.0质量%,2.3质量%<= C + Mo + 5V≤3.3质量%,2.7质量%<= 2.16Cr的范围内 + Mo + 2.54V <= 4.0质量%。 如果不受氮碳共渗处理的影响,从氮碳共渗钢的中央部提取的钢样品在1200℃下奥氏体化1小时,冷却至室温,钢样品通过的冷却速度 在900℃至300℃之间的温度范围为0.5℃/秒,则钢结构中贝氏体组织的面积百分比为80%以上,横截面测得的维氏硬度为260Hv或 多达330 Hv以下。 氮碳共渗层的表面硬度为650Hv以上,氮覆层的形成深度为0.3mm以上,中央部的硬度为340Hv以上。 因此,即使在表面进行氮碳共渗处理之后,也提供了在机械加工性和疲劳强度方面优异的曲轴。
    • 28. 发明申请
    • OPTICAL LAMINATE
    • 光学层压板
    • US20140247486A1
    • 2014-09-04
    • US14112481
    • 2012-04-18
    • Shusaku ShibataKatsunori TakadaHiroyuki TakemotoKeisuke Hirano
    • Shusaku ShibataKatsunori TakadaHiroyuki TakemotoKeisuke Hirano
    • G02B1/10G02B1/11
    • G02B1/14B82Y20/00G02B1/04G02B1/10G02B1/105G02B1/11G02B1/18G02B5/0242G02B5/0278C08L33/08
    • There is provided an optical laminate excellent which secures adhesiveness between the (meth)acrylic resin film (base material film) and a hard coat layer, and can prevent a reduction in scratch resistance. An optical laminate according to an embodiment of the present invention includes: a base material layer formed of a (meth)acrylic resin film; a hard coat layer formed by applying, to the (meth)acrylic resin film, a composition for forming a hard coat layer containing a curable compound and inorganic nanoparticles; and a penetration layer having a thickness of 1.2 μm or more, the penetration layer being formed between the base material layer and the hard coat layer by penetration of the composition for forming a hard coat layer into the (meth)acrylic resin film, wherein a content of the inorganic nanoparticles is 1.5 wt % to 50 wt % with respect to a total of the curable compound and the inorganic nanoparticles.
    • 提供了确保(甲基)丙烯酸树脂膜(基材膜)和硬涂层之间的粘合性的光学层压板,并且可以防止耐划伤性的降低。 根据本发明实施方式的光学层叠体包括:由(甲基)丙烯酸树脂膜形成的基材层; 通过向(甲基)丙烯酸树脂膜施加形成含有可固化化合物和无机纳米粒子的硬涂层的组合物形成的硬涂层; 以及厚度为1.2μm以上的贯通层,通过将用于形成硬涂层的组合物渗入所述(甲基)丙烯酸树脂膜而形成在所述基材层与所述硬涂层之间的所述贯通层,其中, 无机纳米粒子的含量相对于固化性化合物和无机纳米粒子的总量为1.5重量%〜50重量%。