Slip casting mold
    1.
    发明授权
    Slip casting mold 失效
    滑模铸造

    公开(公告)号:US4604141A

    公开(公告)日:1986-08-05

    申请号:US599483

    申请日:1984-04-12

    IPC分类号: B22C9/02 B28B1/26 B29C33/00

    CPC分类号: B28B1/264

    摘要: A slip casting mold consisting essentially of a gypsum mold, which contains a water-insoluble organic material, more particularly, a water-insoluble vegetable material such as cellulose, or which further contains glue in addition to the water-insoluble organic material. Since the strength of the casting mold is reduced markedly by heating, a cast article requiring a core (or master mold) having complex shape can be obtained extremely easily.

    摘要翻译: 基本上由含有水不溶性有机材料的石膏模具组成,尤其是不溶于水的植物材料如纤维素,或除水不溶性有机材料之外还含有胶水的滑模铸造模具。 由于通过加热显着降低铸模的强度,因此可以非常容易地获得需要具有复杂形状的芯(或母模)的铸造制品。

    Nitrogen containing additive for strengthening cast iron
    4.
    发明授权
    Nitrogen containing additive for strengthening cast iron 失效
    用于加强铸铁的含氮添加剂

    公开(公告)号:US3977868A

    公开(公告)日:1976-08-31

    申请号:US601663

    申请日:1975-08-04

    CPC分类号: C21C1/08

    摘要: A nitrogen containing additive for strengthening cast iron which contains silicon, calcium, nitrogen, at least one of chromium and manganese and the balance being iron and incidental impurities. Addition of said additive to flake graphite cast iron melt results in increase in tensile strength by 7 - 15 kg/mm.sup.2 and hardness by 20 - 60 in Brinell hardness and reduction in depth of chill due to synergistic effect of the alloying elements contained in the additive.

    摘要翻译: 一种用于强化铸铁的含氮添加剂,其含有硅,钙,氮,铬和锰中的至少一种,余量为铁和杂质。 将所述添加剂添加到片状石墨铸铁熔体中导致布氏硬度拉伸强度增加7-15kg / mm2,硬度降低20-60,由于添加剂中含有的合金元素的协同​​作用,冷却深度减少 。

    Heat transfer surface and manufacturing method for same
    5.
    发明授权
    Heat transfer surface and manufacturing method for same 失效
    传热面及其制造方法相同

    公开(公告)号:US4561497A

    公开(公告)日:1985-12-31

    申请号:US561070

    申请日:1983-12-14

    IPC分类号: F28F13/02 F28F1/10 F28F13/18

    CPC分类号: F28F13/187 Y10T29/49378

    摘要: In a heat transfer surface having cavity groups and restricted opening groups in an outer surface region, the cavity groups are composed of a plurality of rows of void strip members. The cavity strip members are arranged in parallel on a base member of the heat transfer surface and are laminated in one or more layers. Each strip member has a number of elongate cavities laterally arranged in parallel. The elongate cavities are closed at upper surfaces and have at both ends openings. The adjacent cavities in the same layer are communicated with each other by communicating portions each provided between the cavity strip members and by the openings. The restricted opening groups are formed on the upper surfaces of the communicating portions. The restricted opening groups render the communicating portions in one layer, the communicating portions in another layer and the outside to communicate with each another. The method of manufacturing such a heat transfer surface is also disclosed.

    摘要翻译: 在具有空腔组和外表面区域中的限制开口组的传热表面中,空腔组由多排空隙条构件组成。 空腔条构件平行地布置在传热表面的基底构件上,并且层叠成一层或多层。 每个带状构件具有横向布置成平行的多个细长空腔。 细长的空腔在上表面封闭并且在两端开口。 相同层中的相邻空腔通过各个设置在空腔条形构件之间的连通部分和开口彼此连通。 限制的开口组形成在连通部的上表面上。 受限制的开口组使一个层中的通信部分,另一层中的通信部分和外部彼此通信。 还公开了制造这种传热表面的方法。

    Method of producing vibration attenuating metallic material
    6.
    发明授权
    Method of producing vibration attenuating metallic material 失效
    振动衰减金属材料的制造方法

    公开(公告)号:US4292832A

    公开(公告)日:1981-10-06

    申请号:US88142

    申请日:1979-10-25

    IPC分类号: G10K11/162 G10K11/16 B21B1/38

    CPC分类号: G10K11/16

    摘要: A method of producing a vibration attenuating material having the steps of forming a multiplicity of grooves in the surface of a ductile raw material and subjecting the raw material to a drawing or rolling work to form a multiplicity of minute friction interfaces in the surface region of the vibration attenuating material. An improved vibration attenuating performance is ensured by a suitable selection of numerical values of factors such as relationship between the maximum depth of the friction interface and the thickness of the vibration attenuating material, pitch of the friction interfaces and so forth.

    摘要翻译: 一种制造振动衰减材料的方法,具有以下步骤:在延展性原料的表面形成多个槽,并对原料进行拉伸或滚压加工,以在该表面区域形成多个微摩擦界面 振动衰减材料。 通过适当选择诸如摩擦界面的最大深度与振动衰减材料的厚度,摩擦界面的间距等因素之间的关系的数值来确保改善的振动衰减性能。