INVESTMENT CASTING WITH EXOTHERMIC MATERIAL
    21.
    发明申请
    INVESTMENT CASTING WITH EXOTHERMIC MATERIAL 失效
    投资铸造与异体材料

    公开(公告)号:US20020124984A1

    公开(公告)日:2002-09-12

    申请号:US09804404

    申请日:2001-03-12

    IPC分类号: B22D023/00

    CPC分类号: B22C9/02 B22C9/08 B22D27/06

    摘要: Method and investment shell mold for casting comprising introducing molten metallic material into an investment shell mold to fill a mold cavity and provide an upper surface of the molten metallic material above the mold cavity. An initially closed, destructible region of the mold then is broken to provide an entry opening through which exothermic material is placed on the upper surface of the molten metallic material to provide a source of molten metallic material to accommodate shrinkage of a casting as it solidifies in the mold cavity.

    摘要翻译: 用于铸造的方法和投资壳模具包括将熔融金属材料引入投资壳模以填充模腔并且在模腔上方提供熔融金属材料的上表面。 模具的初始封闭的,可破坏的区域被破坏以提供入口,通过该进入开口将放热材料放置在熔融金属材料的上表面上,以提供熔融金属材料源,以适应铸件固化时的收缩 模腔。

    Casting powder for use in bottom pour ingot steel production and method
for employing same
    22.
    发明授权
    Casting powder for use in bottom pour ingot steel production and method for employing same 失效
    用于底部浇注钢生产的铸造粉末及其使用方法

    公开(公告)号:US4785872A

    公开(公告)日:1988-11-22

    申请号:US102297

    申请日:1987-09-25

    IPC分类号: B22D7/12 B22D27/06 B22D27/00

    CPC分类号: B22D7/12 B22D27/06

    摘要: A casting powder for use in ingot steel production through bottom pour process is provided. The powder combines the crucial properties of existing bottom pour fluxes and hot topping compounds into a single, easily dispensed mixture. The present invention provides a significant simplifying and savings over present methods while producing steel with fewer impurities.

    摘要翻译: 提供了一种用于通过底部浇注工艺生产锭钢的铸造粉末。 该粉末将现有的底部倾倒助熔剂和热封顶化合物的关键性能结合到单个容易分配的混合物中。 本发明提供了显着简化和节省现有方法,同时生产少量杂质的钢。

    Method of producing ingots of unalloyed and alloyed steels
    23.
    发明授权
    Method of producing ingots of unalloyed and alloyed steels 失效
    生产非合金钢和合金钢锭的方法

    公开(公告)号:US4157110A

    公开(公告)日:1979-06-05

    申请号:US856272

    申请日:1977-12-01

    CPC分类号: B22D27/06

    摘要: In a method of and apparatus for producing ingots of unalloyed and alloyed steels having an improved primary crystallization, reduced ingot segregation and a reduced content of non-metallic inclusions, molten steel is poured into a mould, a slag mixture is supplied onto said steel, energy is supplied to the slag mixture while the steel is solidifying in the mould, and the upper rim zone of the molten steel bordering on the slag mixture is cooled.

    摘要翻译: 在具有改进的一次结晶,减少的锭偏析和非金属夹杂物含量降低的非合金和合金钢的锭的制造方法和装置中,将钢水倒入模具中,将渣混合物供给到所述钢上, 钢在模具中凝固的同时向炉渣混合物供给能量,并且与炉渣混合物接壤的钢水的上边缘区域被冷却。

    Process for casting steel ingots under a vacuum
    24.
    发明授权
    Process for casting steel ingots under a vacuum 失效
    在真空下铸造钢锭的工艺

    公开(公告)号:US4037644A

    公开(公告)日:1977-07-26

    申请号:US613859

    申请日:1975-09-16

    CPC分类号: B22D27/15 B22D27/06

    摘要: A process for casting steel ingots, wherein the steel from a ladle is cast under vacuum through the lid of a container which can be evacuated, into a mould, and wherein covering powder or anti-piping compound, respectively, is evenly applied upon the surface of the molten steel in the mould while the vacuum is maintained.

    摘要翻译: 一种用于铸造钢锭的方法,其中来自钢包的钢在真空下通过可以抽空的容器的盖子浇铸到模具中,并且其中分别覆盖粉末或防管道化合物均匀地施加在表面上 的钢水在模具中保持真空。

    Smokeless exothermic hot topping compositions
    25.
    发明授权
    Smokeless exothermic hot topping compositions 失效
    无烟放热热敷组合物

    公开(公告)号:US3867155A

    公开(公告)日:1975-02-18

    申请号:US41140173

    申请日:1973-10-31

    IPC分类号: B22D7/10 B22D27/06 B28B7/36

    CPC分类号: B22D27/06 B22D7/10 Y10S249/05

    摘要: Smokeless exothermic hot topping compositions are provided for application to the metal hot top of a cast ingot or a casting riser to improve the yield of usable metal or inhibit piping. Exothermic compositions containing aluminum, iron oxide and inert filler materials are disclosed which produce no visible smoke when used as hot topping materials.

    摘要翻译: 提供了无烟放热热封组合物,用于铸造锭或铸造提升管的金属热顶部,以提高可用金属的产量或抑制管道。 公开了含有铝,氧化铁和惰性填料的放热组合物,当用作热顶料时不产生可见的烟雾。