Exothermic compositions
    1.
    发明授权
    Exothermic compositions 失效
    放热组成

    公开(公告)号:US5180759A

    公开(公告)日:1993-01-19

    申请号:US185997

    申请日:1988-04-25

    摘要: An exothermic composition comprises a particulate readily oxidizable metal such as aluminum, magnesium or silicon and an organic fluorine-containing compound, and usually an oxidizing agent for the readily oxidizable metal. The preferred organic fluorine-containing compound is polytetrafluoroethylene. The composition may also contain a binder, a particulate refractory material, refractory fibres and/or organic fibres. The composition may be used in the casting of molten metal, either in particulate form or as a preformed shape such as a sleeve or board, to cover or surround molten metal in the feeder of a casting mould or in the head or head box of an ingot mould.

    摘要翻译: 放热组合物包含微粒容易氧化的金属如铝,镁或硅和有机含氟化合物,通常是易氧化金属的氧化剂。 优选的有机含氟化合物是聚四氟乙烯。 组合物还可以含有粘合剂,颗粒耐火材料,耐火纤维和/或有机纤维。 组合物可以用于铸造熔融金属,以颗粒形式或作为预成型的形状例如套筒或板,以覆盖或围绕铸模的进料器中的熔融金属或在头模或头箱中的熔融金属 锭模具。

    Exothermic compositions
    2.
    发明授权
    Exothermic compositions 失效
    放热组成

    公开(公告)号:US4767800A

    公开(公告)日:1988-08-30

    申请号:US35458

    申请日:1987-04-07

    摘要: An exothermic composition comprises a particulate readily oxidizable metal such as aluminium, magnesium or silicon and an organic fluorine-containing compound, and usually an oxidizing agent for the readily oxidizable metal. The preferred organic fluorine-containing compound is polytetrafluoroethylene. The composition may also contain a binder, a particulate refractory material, refractory fibres and/or organic fibres. The composition may be used in the casting of molten metal, either in particulate form or as a preformed shape such as a sleeve or board, to cover or surround molten metal in the feeder of a casting mould or in the head or head box of an ingot mould.

    摘要翻译: 放热组合物包含微粒容易氧化的金属如铝,镁或硅和有机含氟化合物,通常是易氧化金属的氧化剂。 优选的有机含氟化合物是聚四氟乙烯。 组合物还可以含有粘合剂,颗粒耐火材料,耐火纤维和/或有机纤维。 组合物可以用于铸造熔融金属,以颗粒形式或作为预成型的形状例如套筒或板,以覆盖或围绕铸模的进料器中的熔融金属或在头模或头箱中的熔融金属 锭模具。

    Mould and a method for the casting of metals and refractory compositions
for use therein
    5.
    发明授权
    Mould and a method for the casting of metals and refractory compositions for use therein 失效
    模具和铸造用于其中的金属和耐火材料组合物的方法

    公开(公告)号:US5632326A

    公开(公告)日:1997-05-27

    申请号:US532633

    申请日:1995-11-28

    申请人: Michael J. Gough

    发明人: Michael J. Gough

    摘要: A mold for metal casting contains a bonded refractory composition comprising hollow alumina-containing microspheres in which the alumina content is at least 40% by weight. The mold may be an ingot mold and the bonded refractory composition may be in the form of a sleeve or boards located in the top of the mold or in the head box thereto. The mold may be a sand mold and the bonded refractory composition may be in the form of a sleeve or boards located in a feeder cavity or in the form of a board or pad located so as to constitute a metal casting surface where it is desired to promote directional solidification in cast metal. The bonded refractory composition may also be in the form of a breaker core. In a preferred composition the microspheres contain alumina and silica and the composition may also contain one or more other particulate refractory materials, a readily oxidizable metal, an oxidizing metal, an oxidizing agent for the metal and a fluoride salt.

    摘要翻译: PCT No.PCT / GB94 / 00750 Sec。 371日期:1995年11月28日 102(e)日期1995年11月28日PCT 1994年4月8日PCT PCT。 公开号WO94 / 23865 1994年10月22日日本金属铸造用模具包含含有氧化铝含量为40重量%以上的中空含氧化铝微球的粘结耐火材料组合物。 模具可以是铸锭模具,并且粘合的耐火组合物可以是位于模具顶部或头箱中的套筒或板的形式。 模具可以是砂模,并且粘合的耐火材料组合物可以是位于进料器腔中或以板或垫的形式的套筒或板的形式,其定位成构成金属铸造表面,其中期望 促进铸造金属的定向凝固。 粘合的耐火材料组合物也可以是断屑芯的形式。 在优选的组合物中,微球体包含氧化铝和二氧化硅,并且组合物还可以含有一种或多种其它颗粒耐火材料,易氧化金属,氧化金属,金属氧化剂和氟化物盐。

    Riser sleeves for metal casting moulds
    6.
    发明授权
    Riser sleeves for metal casting moulds 失效
    金属铸造模具提升套管

    公开(公告)号:US4665966A

    公开(公告)日:1987-05-19

    申请号:US864853

    申请日:1986-05-20

    IPC分类号: B22C9/08 B22D33/04

    CPC分类号: B22C9/088

    摘要: A riser sleeve has at its end which is uppermost when the sleeve is located in the mould a holding member which can be engaged by a mechanical holding device so as to adapt the sleeve to automatic handling. The holding member may be for example a disc, ring or solid or hollow cylinder and may be formed integrally with the sleeve or formed separately and fixed to the sleeve. By adopting a standard shape and size for the holding member for a wide range of sleeve shapes and sizes the same holding device can be used to handle the whole range of sleeves.

    摘要翻译: 当套筒位于模具中时,提升套筒的端部最上方是保持构件,该保持构件可由机械保持装置接合,以使套筒适应自动处理。 保持构件可以是例如盘,环或实心或中空圆柱体,并且可以与套筒一体地形成或单独形成并固定到套筒上。 通过采用用于保持构件的标准形状和尺寸用于宽范围的套筒形状和尺寸,可以使用相同的保持装置来处理整个套筒的范围。