会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明公开
    • EXHAUST POPPET VALVE AND SOLUTION TREATMENT METHOD OF POPPET VALVE
    • ABGASPILZVENTIL UNDLÖSUNGSBEHANDLUNGSVERFAHRENVON PILZVENTIL
    • EP2327804A4
    • 2014-09-17
    • EP08791695
    • 2008-07-25
    • NITTAN VALVA
    • TANAKA YASUHITOYOKOYAMA HISANAGA
    • C21D1/10B21K1/22C21D1/42C21D6/00C21D9/00C22C38/02F01L1/053F01L1/14F01L3/00F01L3/02F01L3/08F01L3/20
    • C22C38/02B21K1/22C21D1/10C21D1/42C21D6/00C21D9/00C21D2211/001C21D2221/00F01L1/0532F01L1/143F01L3/00F01L3/02F01L3/08F01L3/20F01L2101/00F01L2103/00F01L2820/01Y02P10/253
    • Object of the Invention The invention provides a forged exhaust poppet valve and a method of solution heat treating the same, in which only a predetermined portion of the valve is subjected to the solution heat treatment so as to provide the seat portion of the valve with satisfactory wear resistance, and a predetermined transitional neck-stem region with satisfactory high-temperature creep strength. Means for Achieving the Object An exhaust poppet valve (10) comprises a head portion (12) which has a seat portion (14) on the outer periphery thereof and is integral with the diametrically tapered neck portion (16) of a stem portion (18) of the valve. Using a radio-frequency heating apparatus, a solution heat treatment is given to a predetermined transitional region (A) defined between the neck and stem portions that is exposed to exhaust air during a valve opening period so that the grain size in the region (A) is controlled not to exceed ASTM 10. Thus, not only required high-temperature creep strength is secured in the transitional neck-shaft region (A) but also necessary hardness (wear resistance) is secured in the seat portion (14) of the valve (10), thereby rendering the exhaust poppet valve highly durable.
    • 发明目的本发明提供了一种锻造排气提升阀及其热处理方法,其中仅对阀的预定部分进行固溶热处理,以使阀的座部分具有令人满意的 耐磨性以及具有令人满意的高温蠕变强度的预定的过渡颈部区域。 用于实现对象的装置排气提升阀(10)包括头部(12),头部(12)在其外周上具有座部(14),并与杆部(18)的直径锥形颈部(16)成一体 )。 使用射频加热装置,在限定在颈部和茎部之间的预定过渡区域(A)进行固溶热处理,所述过渡区域(A)在阀打开期间暴露于排气中,使得区域(A )被控制为不超过ASTM 10.因此,不仅在过渡颈部轴区域(A)中确保了所需的高温蠕变强度,而且在所述颈部部分(14)的座部(14)中确保必要的硬度(耐磨性) 阀(10),从而使排气提升阀高度耐用。
    • 9. 发明公开
    • METHOD FOR MANUFACTURING HOLLOW ENGINE VALVE
    • VERFAHREN ZUR HERSTELLUNG EINES MOTORHOHLVENTILS
    • EP2690262A1
    • 2014-01-29
    • EP12760300.9
    • 2012-02-17
    • Mitsubishi Heavy Industries, Ltd.Yoshimura Company
    • MORII HirokazuHIRAO KenichiroYOSHIMURA Hyoji
    • F01L3/20F01L3/24
    • B21K1/24B21K1/22B23P15/002F01L3/14F01L3/20F01L2103/00Y10T29/49405
    • Provided is a method for manufacturing a hollow engine valve, by which a hollow engine valve having a shaft part with a desired thickness can be relatively easily manufactured. A method for manufacturing a hollow engine valve having a hollow part formed over a range from a shaft part to an enlarged diameter section of a valve umbrella part is provided with: a rotational plastic working step for performing rotational plastic working on a follow engine valve body semifinished product (10) which is configured from a shaft part (11) and a valve umbrella part forming portion (12) connected to the shaft part, and in which a columnar hole part (13) is formed over a range from the shaft part to an enlarged diameter section of the valve umbrella part forming portion to thereby reduce the diameter of the shaft part; a necking step for, following the rotational plastic working step, necking the hollow engine valve body semifinished product to thereby reduce the outer diameter and the inner diameter of the shaft part; and a sealing step for, following the necking step, sealing the leading end of the shaft part to obtain the hollow engine valve.
    • 提供一种制造中空发动机阀的方法,通过该方法可以相对容易地制造具有期望厚度的轴部的中空发动机气门。 一种空心发动机阀的制造方法,其具有在阀伞部的轴部至扩径部的范围内形成的中空部,具有:旋转塑料加工工序,对后续发动机阀体进行旋转塑性加工 半成品(10),其由轴部(11)和与所述轴部连接的阀伞部形成部(12)构成,并且在所述轴部(11)的范围内形成有柱状孔部(13) 到所述阀伞部形成部的扩径部,由此减小所述轴部的直径; 缩颈步骤,在旋转塑料加工步骤之后,颈缩空心发动机阀体半成品,从而减小轴部分的外径和内径; 以及密封步骤,在颈缩步骤之后,密封轴部的前端以获得中空的发动机气门。