내연기관의 배기밸브 스핀들 또는 피스톤 형태의 가동벽부재
    42.
    发明公开
    내연기관의 배기밸브 스핀들 또는 피스톤 형태의 가동벽부재 失效
    内燃机排气阀主轴或活塞式驱动壁部件2

    公开(公告)号:KR1020000010970A

    公开(公告)日:2000-02-25

    申请号:KR1019980709119

    申请日:1997-05-13

    Abstract: PURPOSE: A piston or an exhaust valve spindle made of high temperature corrosion-resisting material which has long effective life is provided. CONSTITUTION: The valve spindle(1) for exhaust valve of a cross head engine includes a shaft(3) and a valve disk(2). A valve sheet(4) located on the upper surface of a valve disk is produced with a high temperature corrosion-resisting alloy having high hardness for preventing forming of a recessed groove for forming the seal face of the sheet. The lower surface of the valve disk has the layer consisted of high temperature corrosion-resisting material(5) for preventing the combustion of the material from the lower face(6) of the disk, has high softness and high endurance to the high temperature corrosion.

    Abstract translation: 目的:提供具有长寿命的高温耐腐蚀材料制成的活塞或排气阀芯。 构成:十字头发动机排气阀的阀芯(1)包括轴(3)和阀盘(2)。 利用具有高硬度的高温耐腐蚀合金制造位于阀盘上表面的阀片(4),以防止形成用于形成片材密封面的凹槽。 阀盘的下表面具有由高温耐腐蚀材料(5)组成的层,用于防止材料从盘的下表面(6)燃烧,具有高的柔软性和高耐腐蚀性 。

    Coated articles and method for the prevention of fuel thermal degradation deposits
    49.
    发明公开
    Coated articles and method for the prevention of fuel thermal degradation deposits 失效
    涂覆制品和用于防止燃料的热分解产物沉积的方法。

    公开(公告)号:EP0608081A1

    公开(公告)日:1994-07-27

    申请号:EP94300274.1

    申请日:1994-01-14

    Abstract: Articles for hot hydrocarbon fluid wherein the surface for contacting the fluid is a metal oxide, amorphous glass or metal fluoride diffusion barrier material coated on a metal substrate. The metal oxide, amorphous glass or metal fluoride is deposited by chemical vapor deposition (CVD), e.g., by effusive CVD of an organometallic compound on the surface without the use of carrier gas, without pre-oxidation of the surface and without thermal decomposition of the diffusion barrier coating material. Examples of coating materials deposited by effusive CVD are Si0 2 , Ti0 2 , spinel and A1 2 0 3 . The articles having the coated surfaces find utility in components subjected to high temperatures wherein the components are in contact with hydrocarbon fluids without additives, without special attention to quality control and without the need for special processing.

    Abstract translation: 制品用于热烃流体worin用于接触流体表面是涂覆在金属基材的金属氧化物,无定形玻璃或金属氟化物扩散阻挡材料。 金属氧化物,无定形玻璃或金属氟化物是通过化学气相沉积(CVD),例如,通过在表面上的有机金属化合物的喷溢CVD在不使用载气的沉积,而不会在表面的预氧化,没有热分解 扩散阻挡包衣材料。 通过喷溢CVD沉积的涂层材料的例子是二氧化硅,二氧化钛,氧化铝尖晶石和。 具有涂覆表面发现经受高温worin组分处于与烃流体接触,而没有添加剂组分效用,无需特别注意的质量控制而无需进行特殊加工的制品。

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