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36 条记录 (耗时 0.017 秒)

    Wear resistant alloy containing residual austenite for valve seat insert
    2.
    发明授权
    Wear resistant alloy containing residual austenite for valve seat insert 有权
    含有用于阀座插入物的残余奥氏体的耐磨合金

    公开(公告)号：US06916444B1

    公开(公告)日：2005-07-12

    申请号：US10074068

    申请日：2002-02-12

    申请人： Xuecheng Liang

    发明人： Xuecheng Liang

    IPC分类号： B22F5/02 ,  C22C30/00 ,  C22C38/08 ,  C22C38/12 ,  C22C38/34 ,  C22C38/44 ,  C22C38/56 ,  F01L3/02

    CPC分类号： C22C38/44 ,  C22C38/02 ,  C22C38/04 ,  C22C38/34 ,  C22C38/46 ,  C22C38/48 ,  C22C38/56

    摘要： This invention related to a novel iron base alloy using residual austenite to improve wear resistance for valve seat insert material for internal combustion engines. The residual austenite is stable even after heat treatment and liquid nitrogen chilling. The alloy comprises of 2.0-4.0 wt % carbon, 1.0-3.0 wt % silicon, 0-4.0 wt % manganese, 3.0-9.0 wt % chromium, 5.0-15.0 wt % molybdenum, 3.0-15.0 wt % nickel, 0-6.0 wt % vanadium, 0-4.0 wt % niobium, 0-6.0 wt % cobalt, and the balance being iron with impurities.

    摘要翻译： 本发明涉及一种使用残余奥氏体的新型铁基合金，以改善用于内燃机的阀座插入材料的耐磨性。 残余奥氏体即使在热处理和液氮冷却后也是稳定的。 该合金包括2.0-4.0重量％的碳，1.0-3.0重量％的硅，0-4.0重量％的锰，3.0-9.0重量％的铬，5.0-15.0重量％的钼，3.0-15.0重量％的镍，0-6.0重量％ ％钒，0-4.0重量％铌，0-6.0重量％钴，余量为铁与杂质。

    Method for producing powder metal cylinder bore liners
    4.
    发明授权
    Method for producing powder metal cylinder bore liners 失效
    粉末金属缸内衬的生产方法

    公开(公告)号：US5842109A

    公开(公告)日：1998-11-24

    申请号：US678311

    申请日：1996-07-11

    申请人： Edward Akpan ,  John E. Brevick

    发明人： Edward Akpan ,  John E. Brevick

    IPC分类号： B22F3/12 ,  B22F5/02 ,  B22F7/06 ,  F02F1/10

    CPC分类号： B22F7/064 ,  B22F3/12 ,  B22F5/02 ,  B22F7/06 ,  F02F1/004 ,  B22F2998/10 ,  F02B2275/18

    摘要： A method for producing powder metal cylinder bore liners for an internal combustion engine includes the steps of loading a powder metal mixture into a die cavity of a die, compacting the powder metal mixture in the die cavity using uniaxial pressure from the die and forming the powder metal cylinder bore liner, and sintering the powder metal cylinder bore liner.

    摘要翻译： 一种用于制造用于内燃机的粉末金属缸内衬的方法包括以下步骤：将粉末金属混合物装载到模具的模腔中，使用来自模具的单轴压力将模具腔中的粉末金属混合物压实并形成粉末 金属气缸内衬，并烧结金属气缸内衬。

    Piston ring for internal combustion engine
    5.
    发明授权
    Piston ring for internal combustion engine 失效
    内燃机活塞环

    公开(公告)号：US4465515A

    公开(公告)日：1984-08-14

    申请号：US286654

    申请日：1981-07-24

    申请人： Frank Mundorff

    发明人： Frank Mundorff

    IPC分类号： F02F5/00 ,  B22F5/02 ,  C22C19/05 ,  C22C19/07 ,  C22C32/00 ,  F02B3/06 ,  F16J9/26

    CPC分类号： F16J9/26 ,  C22C32/0084 ,  F02B3/06 ,  Y10T29/49274

    摘要： To provide piston rings which are ductile, can be heavily thermally loaded, and are not attacked by corrosive residues occurring upon combustion of residual oil or other sulfur-containing heavy Diesel oils, a powder mixture is sintered in an isostatic hot-pressure sintering process in which a hard metal and a soft filler material are combined; in accordance with one embodiment, the base is a hard metal using nickel or cobalt-based alloys present in 40-80% by weight, the remainder filler which, for example, is unrefined or galvanically coated graphite; in a second embodiment, the base is a soft material such as a high-copper content bronze, and the filler is a nickel or cobalt-based alloy, with the base metal being present in 60-80%, the filler being the remainder (all percentages by weight). Isostatic hot compression results in piston rings which can operate, under emergency conditions, without, or with only insufficient lubrication, have high strength, resistance to attack by corrosive substances, and have sufficient ductility for simple assembly and long wear.

    摘要翻译： 为了提供具有延展性的活塞环，可以重度热负载，并且在残留油或其它含硫重质柴油的燃烧时不会发生腐蚀性残留物，粉末混合物在等静压热压烧结过程中烧结 硬金属和软填料材料组合在一起; 根据一个实施方案，碱是使用以40-80重量％计的镍或钴基合金的硬质金属，剩余的填料例如是未精制或电镀石墨; 在第二实施方案中，基材是诸如高铜含量的青铜的软材料，并且填料是镍或钴基合金，其中母体金属以60-80％存在，填料为余量（ 所有重量百分比）。 等静压热压缩导致活塞环在紧急情况下，无润滑润滑或只有不足的润滑作用，具有高强度，耐腐蚀性物质的侵蚀性，并具有足够的延展性，可简化组装和长时间磨损。

    DESIGNING AND MANUFACTURING METHOD FOR POWDER INJECTION MOLDING PISTON RING
    8.
    发明申请
    DESIGNING AND MANUFACTURING METHOD FOR POWDER INJECTION MOLDING PISTON RING 审中-公开

    公开(公告)号：US20180361476A1

    公开(公告)日：2018-12-20

    申请号：US15563790

    申请日：2016-08-05

    申请人： Ruo Huang

    发明人： Ruo Huang

    IPC分类号： B22F3/22 ,  B22F5/02

    摘要： A designing and manufacturing method for powder injection molding a piston ring comprises the following steps: (a) designing an elliptical equation of the piston ring according to the technical requirements of the piston ring product and providing the free opening gap size; (b) conducting engineering analysis on structural strength, stress-strain, and friction and wear by means of a computer; (c) designing and selecting a powder material, designing a proportion ratio of powder and adhesive, and manufacturing a feeding material for injection by means of mixing and granulating; (d) designing and manufacturing an injection mold for the elliptical piston ring; (e) manufacturing a three-dimensional elliptical piston ring blank by injecting, degreasing, sintering and post-processing; (f) cutting an opening; and (g) inspecting translucency, elasticity and size of the product, then packaging and delivering or warehousing. The present designing and manufacturing method employs the technique of powder injection molding and computer-aided design and engineering analysis, designs and selects powder materials, and designs a proportion ratio of powder and adhesive; due to feeding particles being uniform, the piston ring structure is more uniform, and has improvements over the traditional casting process with more design freedom.