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78 条记录 (耗时 0.014 秒)

    Process for casting metals
    51.
    发明授权
    Process for casting metals 失效
    铸造金属工艺

    公开(公告)号：US4452299A

    公开(公告)日：1984-06-05

    申请号：US486164

    申请日：1983-04-15

    申请人： Bruce A. Gruber ,  Heimo J. Langer ,  William R. Dunnavant

    发明人： Bruce A. Gruber ,  Heimo J. Langer ,  William R. Dunnavant

    IPC分类号： B22C1/22 ,  B22C1/20

    CPC分类号： B22C1/2233

    摘要： A process for casting metal which includes pouring the metal into or around a molded article obtained from a molding composition wherein the binder includes certain fulvenes and/or prepolymers thereof, and a metal salt catalyst. The metal is cooled, solidified, and separated from the molded article.

    摘要翻译： 一种用于铸造金属的方法，其包括将金属倒入由模制组合物获得的模塑制品中或其周围，其中所述粘合剂包括其某些富烯和/或其预聚物，以及金属盐催化剂。 将金属冷却，固化并与模制品分离。

    Catalysts and binder systems for manufacturing sandshapes
    53.
    发明授权
    Catalysts and binder systems for manufacturing sandshapes 失效
    用于制造砂皮的催化剂和粘合剂体系

    公开(公告)号：US4383098A

    公开(公告)日：1983-05-10

    申请号：US282409

    申请日：1981-07-13

    申请人： James E. Menting

    发明人： James E. Menting

    IPC分类号： B22C1/22 ,  C08L61/00 ,  C08F134/02 ,  C08G14/04 ,  C08G14/08

    CPC分类号： C08L61/00 ,  B22C1/2233

    摘要： A catalyst material is described, particularly useful in making core sand from which resin bound sand shapes are made. The preferred catalyst is a material comprising at least one salt made from a weak base and an acid from the group comprising lower aliphatic and aromatic hydrocarbon sulfonic acids. The curable resin binder is preferably a furfuryl alcohol polymer or other furan-based material. The resin is preferably present in an amount of about 0.5% to about 5% based on the weight of sand, while the catalyst is present in an amount of about 5% to 40% by weight of the resin material. The catalyzed composition provides an excellent combination of working or bench life, rapid curing on a delayed action basis and favorable shape-imparting and holding properties in the formed sand shapes. Specifically preferred compositions include aluminum and copper phenol and toluene sulfonic acid salts.

    摘要翻译： 描述了催化剂材料，特别可用于制造形成树脂结合砂形状的芯砂。 优选的催化剂是包含由弱碱制成的至少一种盐和包含低级脂族和芳族烃磺酸的酸的材料。 可固化树脂粘合剂优选为糠醇聚合物或其它呋喃基材料。 树脂优选以基于砂的重量计约0.5％至约5％的量存在，而催化剂以树脂材料的约5重量％至40重量％的量存在。 催化的组合物提供了工作或台架寿命的优异组合，在延迟作用基础上快速固化，并且在形成的砂形中具有良好的形状赋予和保持性能。 特别优选的组合物包括铝和铜苯酚和甲苯磺酸盐。

    Catalyst for curing resins
    56.
    发明授权
    Catalyst for curing resins 失效
    树脂固化催化剂

    公开(公告)号：US4178429A

    公开(公告)日：1979-12-11

    申请号：US961666

    申请日：1978-11-17

    申请人： Karl D. Scheffer

    发明人： Karl D. Scheffer

    IPC分类号： B22C1/22 ,  C08K3/00 ,  C08K3/16 ,  C08L71/14 ,  C08G2/30 ,  C08G4/00

    CPC分类号： C08L71/14 ,  B22C1/2233 ,  C08K3/0016 ,  C08K3/16

    摘要： Process and catalyst for curing resins (e.g. furans) comprising concentrated aqueous solutions of perchloric acid (about 45-72%) and the cured resins obtained using said catalyst. Improved catalyst combinations for curing resins in a process employing same and the cured resin produced thereby comprising concentrated perchloric acid, a small amount of phosphoric acid and/or a small amount of boric acid.

    摘要翻译： 用于固化包含浓缩高氯酸水溶液（约45-72％）的树脂（例如呋喃）的方法和催化剂以及使用所述催化剂获得的固化树脂。 改进的催化剂组合用于在使用它的方法中固化树脂和由此生产的固化树脂包含浓缩的高氯酸，少量的磷酸和/或少量的硼酸。

    Method for increasing the mechanical resistance of foundry moulds or cores made from a self-hardening liquid sand and a resin as binding agent
    57.
    发明授权
    Method for increasing the mechanical resistance of foundry moulds or cores made from a self-hardening liquid sand and a resin as binding agent 失效
    用于增加由自硬化液砂和树脂作为粘合剂制成的铸造模具或芯的机械阻力的方法

    公开(公告)号：US3993117A

    公开(公告)日：1976-11-23

    申请号：US496770

    申请日：1974-08-12

    申请人： Roland F. Chevriot ,  Marcel P. Gonon ,  Gilles Le Maux ,  Daniel Mangin

    发明人： Roland F. Chevriot ,  Marcel P. Gonon ,  Gilles Le Maux ,  Daniel Mangin

    IPC分类号： B22C1/22 ,  C08L61/20

    CPC分类号： B22C1/2233

    摘要： Foundry moulds and cores of increased mechanical resistance are prepared from sand, a binding agent, a setting agent, and a surface active agent, the binding agent being a urea-formaldehyde resin or a urea-formaldehyde-furfuryl alcohol resin, the surface active agent being capable of producing a foam which begins to subside before the sand begins to set, the surface-active agent being selected from the group consisting of an alkylbenzene sulphonate, an alkylamine salt of formula RNH.sub.2,YH in which R is an alkyl group of more than 9 carbon atoms and Y is the anionic portion of an acid or a compound of formula: ##EQU1## IN WHICH R represents an alkyl group having more than 9 carbon atoms and Me is an alkali metal; in the proportion of 0.01 to 2% by weight of surface-active agent with respect to the total weight of the liquid sand. Particularly effective are n-dodecylbenzene sulphonate and tetra-isobutyl sulphonate.

    摘要翻译： 表面活性剂由砂，粘合剂，固化剂和表面活性剂制备，所述粘合剂为脲 - 甲醛树脂或脲 - 甲醛 - 糠醇树脂， 能够产生在砂开始凝固之前开始消退的泡沫，表面活性剂选自烷基苯磺酸盐，式RNH2的烷基胺盐，其中R是更多的烷基的YH 不大于9个碳原子，Y是酸或下式化合物的阴离子部分：R-CONH-CH2-CH2-OCO-CH-CH2-CO2Me | SO3MeIn其中R表示具有多于9个碳原子的烷基， 我是碱金属; 相对于液砂的总重量为0.01〜2重量％的表面活性剂的比例。 特别有效的是正十二烷基苯磺酸盐和四异丁基磺酸盐。