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公开(公告)号：US20130174999A1
公开(公告)日：2013-07-11
申请号：US13544486
申请日：2012-07-09
申请人： Richard Dudley Shaw
发明人： Richard Dudley Shaw
IPC分类号： B22C1/00
摘要： The invention provides novel binder, slurry and dry mix compositions for use in the production of investment casting moulds. These compositions comprise water insoluble fibers and significant amounts of uncalcined clay. The compositions display favourable separation characteristics and short drying times. The moulds formed using the compositions have a favourable green strength and conform closely to the wax pattern on which the mould is coated. Also provided are methods of producing the compositions, methods of investment casting mould production utilising the compositions and investment casting coating shells produced using the compositions of the invention.
摘要翻译： 本发明提供用于生产熔模铸造模具的新型粘合剂，浆料和干混组合物。 这些组合物包含水不溶性纤维和大量未煅烧粘土。 该组合物显示出有利的分离特性和较短的干燥时间。 使用该组合物形成的模具具有良好的生坯强度并且与涂覆有模具的蜡图案紧密地吻合。 还提供了生产组合物的方法，使用组合物的熔模铸造模具生产方法和使用本发明的组合物生产的熔模铸造涂层壳。
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公开(公告)号：US5744050A
公开(公告)日：1998-04-28
申请号：US736084
申请日：1996-10-24
申请人： Richard Dudley Shaw
发明人： Richard Dudley Shaw
摘要： The present invention provides a nozzle for teeming molten metal, particularly molten steel, from a tundish or other receptacle, which nozzle comprises an inlet, an outlet, and inner and outer tubular members which define a bore through the nozzle between the inlet and outlet. The nozzle is characterised in that both of said inner and outer tubular members are constructed from refractory materials, and in that the inner member extends within the outer member to the inlet. The inner and outer ceramic layers thus form a "double-layer" of refractory material up to the extremity of the nozzle at the inlet end.
摘要翻译： 本发明提供了一种用于从中间包或其他容器浇铸熔融金属，特别是钢水的喷嘴，该喷嘴包括入口，出口以及在入口和出口之间限定通过喷嘴的孔的内部和外部管状构件。 喷嘴的特征在于，所述内管状构件和外管状构件都由耐火材料构成，并且内构件在外构件内延伸到入口。 因此，内部和外部陶瓷层在入口端形成直到喷嘴末端的“双层”耐火材料。
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公开(公告)号：US06769475B2
公开(公告)日：2004-08-03
申请号：US10192319
申请日：2002-07-11
IPC分类号： B22C102
摘要： The present invention relates to improvements in and relating to investment casting. In particular, the invention provides a method of investment casting, comprising the steps of mixing a binder, a refractory material, and a quantity of water-insoluble organic fibres to form a slurry; coating an expendable pattern with a coat of said slurry; and drying said coat or allowing said coat to dry to form a shell. The present invention further provides a refractory slurry for use in the method of the invention, and a kit of ingredients for putting the method of the invention into effect.
摘要翻译： 本发明涉及熔模铸造的改进和涉及。 特别地，本发明提供一种熔模铸造方法，包括以下步骤：将粘合剂，耐火材料和一定量的水不溶性有机纤维混合以形成浆料; 用一层所述浆料涂覆消耗型图案; 并干燥所述涂层或使所述涂层干燥以形成壳。 本发明还提供了用于本发明方法的耐火浆料和用于使本发明的方法生效的成分试剂盒。
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公开(公告)号：US4068701A
公开(公告)日：1978-01-17
申请号：US763147
申请日：1977-01-27
CPC分类号： B22C9/00
摘要： A refractory shape is molded on a pattern by pouring over the pattern a mixture of two slurries each of which is stable but which together react to gell. The mixture is formed by merging two slurry streams immediately above the pattern.
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公开(公告)号：US08834622B2
公开(公告)日：2014-09-16
申请号：US13544486
申请日：2012-07-09
申请人： Richard Dudley Shaw
发明人： Richard Dudley Shaw
摘要： The invention provides novel binder, slurry and dry mix compositions for use in the production of investment casting moulds. These compositions comprise water insoluble fibers and significant amounts of uncalcined clay. The compositions display favorable separation characteristics and short drying times. The moulds formed using the compositions have a favourable green strength and conform closely to the wax pattern on which the mould is coated. Also provided are methods of producing the compositions, methods of investment casting mould production utilising the compositions and investment casting coating shells produced using the compositions of the invention.
摘要翻译： 本发明提供用于生产熔模铸造模具的新型粘合剂，浆料和干混组合物。 这些组合物包含水不溶性纤维和大量未煅烧粘土。 该组合物显示出有利的分离特性和较短的干燥时间。 使用该组合物形成的模具具有良好的生坯强度并且与涂覆有模具的蜡图案紧密地吻合。 还提供了生产组合物的方法，使用组合物的熔模铸造模具生产方法和使用本发明的组合物生产的熔模铸造涂层壳。
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公开(公告)号：US5900382A
公开(公告)日：1999-05-04
申请号：US909103
申请日：1997-08-12
申请人： Richard Dudley Shaw
发明人： Richard Dudley Shaw
CPC分类号： C04B35/6316 , C04B28/34 , C04B35/6306
摘要： The present invention relates to a refractory binder that comprises a mixture of aqueous phosphate and silica sol. The silica sol has been found to gel and set in a surprisingly effective and useful way. Preferably, the refractory binder further incorporates a small amount of magnesia as an accelerator. The present invention also provides a method of binding a refractory material such, for example, as alumina, zirconia mullite or aluminium silicate by using a refractory binder according to the invention.
摘要翻译： 本发明涉及包含磷酸水溶液和二氧化硅溶胶的混合物的耐火粘合剂。 已经发现硅溶胶凝胶化并以令人惊讶的有效和有用的方式设定。 优选地，耐火粘合剂还包含少量作为促进剂的氧化镁。 本发明还提供了通过使用根据本发明的耐火粘合剂来结合耐火材料的方法，例如氧化铝，氧化锆莫来石或硅酸铝。
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公开(公告)号：US06755237B2
公开(公告)日：2004-06-29
申请号：US10221781
申请日：2002-10-22
IPC分类号： B22C102
摘要： A method of investment casting is disclosed, which comprises the preparation of a refractory slurry by mixing a binder, a refractory material, and a quantity of water-insoluble organic fibres, and the application of one or more coats of this slurry to an expendable pattern, so as to build up a shell. It has been found that each coat of the slurry thus formed is surprisingly thick, and that a relatively short drying time is required for each coat, hence enabling a shell of desirable thickness to be rapidly built in a small number of “dipping cycles”. The invention also encompasses a kit of ingredients for putting the method of the invention into effect; a shell produced in accordance with this method; and a refractory slurry for use in this method.
摘要翻译： 公开了一种熔模铸造的方法，其包括通过混合粘合剂，耐火材料和一定量的水不溶性有机纤维来制备耐火浆料，以及将该浆料的一种或多种涂层施用于消耗模式 ，以便建立一个shell。 已经发现，由此形成的每一层浆料都是令人惊讶的厚度，并且每个涂层需要相当短的干燥时间，因此能够以少量的“浸渍循环”快速地构建所需厚度的壳。 本发明还包括用于使本发明的方法生效的成分试剂盒; 按照这种方法生产的外壳; 和用于该方法的耐火浆料。
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公开(公告)号：US06450243B1
公开(公告)日：2002-09-17
申请号：US09677757
申请日：2000-10-03
IPC分类号： B22C904
摘要： The present invention relates to improvements in and relating to investment casting. In particular, the invention provides a method of investment casting, comprising the steps of mixing a binder, a refractory material, and a quantity of water-insoluble organic fibers to form a slurry; coating an expendable pattern with a coat of said slurry; and drying said coat or allowing said coat to dry to form a shell. The present invention further provides a refractory slurry for use in the method of the invention, and a kit of ingredients for putting the method of the invention into effect.
摘要翻译： 本发明涉及熔模铸造的改进和涉及。 特别地，本发明提供一种熔模铸造的方法，包括以下步骤：将粘合剂，耐火材料和一定量的水不溶性有机纤维混合以形成浆料; 用一层所述浆料涂覆消耗型图案; 并干燥所述涂层或使所述涂层干燥以形成壳。 本发明还提供了用于本发明方法的耐火浆料和用于使本发明的方法生效的成分试剂盒。
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