• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Method of manufacturing mechanical elements, with high resistance to corrosion, especially valves for thermal engines, and armored elements characterized by manufacturing the element of a corrosion resistant alloy and subjecting, at least the area of said element intended to be in contact with a seat, a shake that reduces the grain size and hardens the structure.
    公开号:SU849986A3
    申请号:SU772455676
    申请日:1977-02-11
    公开日:1981-07-23
    发明作者:Сэн-При Робер
    申请人:Этаблиссман Дерво С.А. (Фирма)；
    IPC主号:
    专利说明:

    one
    FIELD OF THE INVENTION The invention relates to mechanical engineering, in particular, to the technology of manufacturing poppet valves operating in aggressive environments. j
    A known method of manufacturing disc valves operating in aggressive media by deforming a billet of a nickel-chromium alloy with the design of a valve valve | Q on it and heat treatment of i.
    The disadvantage of this method is the reduced performance of the manufactured valves.
    The purpose of the invention is to increase the exp-15 properties.
    This goal is achieved by the fact that, according to the method of manufacturing disc valves that operate in aggressive environments, by deforming a billet of chromium-nickel alloy with a valve plate and heat treatment, a layer of protective coating is directed to it is forged, 25a is heat-treated by means of gsmogenizing annealing after the overlaying of a layer of protective coating and artificial aging after the valve plate has been pierced, while artificial aging and the forging of the plates and carried out at a temperature prevyiayuschey valve working temperature.
    The method of manufacturing a poppet valve is as follows.
    From the original billet, a valve is formed with such an arrow in the form of a deformation. A protective coating is directed onto the supporting surface of the tray, which subsequently contacts during valve operation with the seat, the material of which, when combined with the valve material, forms an alloy different from the valve material and coating.
    After the overlaying of the protective coating, homogenization is carried out in order to undergo structural transformations that equalize the properties in the valve body and, in particular, in its plate. Then, the valve plate is forged and artificially aged at a temperature higher than the operating temperature of the valve.
    Example. The disc valve is made with a plate with a diameter of 40 mm and a height of 23 mm, the valve stem has a diameter of 10 mm and a length of 9 mm.
    The deformation of the chromium-nickel alloy blank is carried out at. Since the use of a valve is assumed to be at-work TJ SM temperature, the plate is forged and aged at. Homogenization is performed by annealing.
    The resulting product is subjected to corrosion resistance tests. The test results showed high properties of the valves obtained by the proposed technology.
    The proposed method provides improved performance of the disc valves.
    权利要求:
    Claims (1)
    [1]
    1. Storozhev M.V. and others. Technologists forging and hot stamping non-ferrous metals and alloys. M., Higher School, 1967, p. 281-285.
    类似技术:
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    KR100807393B1|2008-02-28|Process for making Ti-Ni based functionally graded alloys and Ti-Ni based functionally graded alloys produced thereby
    SE7905863L|1980-01-06|BODY PLAT
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    US2327500A|1943-08-24|Process of making bimetal thermostatic elements
    US1554997A|1925-09-29|Method of forming valves for internal-combustion engines
    US2044743A|1936-06-16|Treating austenitic steel
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    US2194738A|1940-03-26|Thermostatic metal and thermostatic bimetal
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    US3139329A|1964-06-30|Valve lifters and the like having cemented carbide facings
    SU367159A1|1973-01-23|Г кс;
    同族专利:
    公开号 | 公开日
    NL7701465A|1977-08-15|
    SE422338B|1982-03-01|
    FI770405A|1977-08-12|
    NL174229B|1983-12-16|
    DE2705344C2|1987-08-27|
    GB1571330A|1980-07-16|
    FR2341039B1|1982-04-02|
    NL174229C|1984-05-16|
    SE7701511L|1977-08-12|
    DK146376B|1983-09-26|
    DK56677A|1977-08-12|
    ES456217A1|1978-06-01|
    FR2341039A1|1977-09-09|
    JPS5298816A|1977-08-19|
    IT1082462B|1985-05-21|
    DE2705344A1|1977-08-18|
    DK146376C|1984-03-05|
    JPS5943541B2|1984-10-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2734008A|1956-02-07|Method of making heat treating and hardening valves |DK166219C|1991-01-23|1993-08-16|Man B & W Diesel Gmbh|VALVE WITH HAIR PILOT|
    DE59206839D1|1991-07-04|1996-09-05|New Sulzer Diesel Ag|Exhaust valve of a diesel engine and method of manufacturing the valve|
    DK172987B1|1994-12-13|1999-11-01|Man B & W Diesel As|Cylinder element, nickel-based alloy and application of the alloy|
    DK173136B1|1996-05-15|2000-02-07|Man B & W Diesel As|Movable wall element in the form of an exhaust valve stem or piston in an internal combustion engine.|
    DK177071B1|2009-10-30|2011-05-30|Man Diesel & Turbo Deutschland|Exhaust valve spindle for an internal combustion engine and a method of manufacture thereof|
    PL2740908T3|2012-06-14|2017-06-30|Nittan Valve Co., Ltd.|Method of forming poppet valve faces and poppet valves having faces formed by this method|
    JP6213178B2|2013-11-20|2017-10-18|大同特殊鋼株式会社|Manufacturing method of functionally graded parts|
    CN106425287B|2016-07-18|2019-04-23|江苏海宇机械有限公司|A kind of processing technology for shaft body part of perforating|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7604375A|FR2341039B1|1976-02-11|1976-02-11|
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