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41. 发明授权

US06949136B2 High temperature investment material and method for making solid investment molds 失效
标题翻译：高温投资材料和制作固体投资模具的方法
公开(公告)号：US06949136B2
公开(公告)日：2005-09-27
申请号：US10862623
申请日：2004-06-07
申请人： Robert A. Horton , Claude H. Watts
发明人： Robert A. Horton , Claude H. Watts
IPC分类号： B28B7/36 , C04B35/14 , C04B35/63 , C04B35/66 , B32B7/36
CPC分类号： B22C1/185 , C04B35/14 , C04B35/6306 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3217 , C04B2235/3409 , C04B2235/3418 , C04B2235/448 , C04B2235/449
摘要： An improved phosphate-type refractory investment material and method for making solid investment molds especially useful for casting high melting point metals and alloys, such as platinum and the like. The material consists essentially of one or more phosphate salts, a water soluble acidic constituent, and refractory powder. The material can be prepared as a dry powder blend which is easily shipped to the user and mixed with water at the time of investing the flask. Alternatively, the salt and/or acidic constituent can be combined with the refractory powder at the time of mixing with water.
摘要翻译：一种改进的磷酸盐型耐火材料投资材料和制造固体投资模具的方法，其特别适用于铸造高熔点金属和合金（例如铂等）。该材料基本上由一种或多种磷酸盐，水溶性酸性组分和耐火粉末组成。该材料可以制备成干粉混合物，其在投入烧瓶时容易运输到使用者并与水混合。或者，盐和/或酸性组分可以在与水混合时与耐火粉末组合。

42. 发明授权

US6024787A Water soluble ceramic core for use in die casting, gravity and investment casting of aluminum alloys 失效
标题翻译：水溶性陶瓷芯，用于压铸，重力和熔模铸造的铝合金
公开(公告)号：US6024787A
公开(公告)日：2000-02-15
申请号：US92746
申请日：1998-06-05
申请人： Yuh-Wen Lee
发明人： Yuh-Wen Lee
IPC分类号： B22C1/16 , B22C1/18
CPC分类号： B22C1/26 , B22C1/185 , B22C9/10
摘要： A water-soluble ceramic core is prepared which can be advantageously used in the die casting, gravity casting, and investment casting of precision aluminum alloy objects. The ceramic core contains: (a) 60 to 70% by weight of alumina (A1.sub.2 O.sub.3) flour; (b) about 15 to 25 by weight of zircon (ZrSiO.sub.4) flour; (c) about 5 to 15 by weight of sodium hydrogen phosphate (Na.sub.2 HPO.sub.4); and (d) about 5 by weight of sugar. In preparing the ceramic core, sodium hydrogen phosphate and sugar are first dissolved in water to form a sodium hydrogen phosphate/sugar solution. Then alumina flour and zircon flour are added into the sodium hydrogen phosphate/sugar solution to form a slurry, which is caused to form a precursory ceramic core using an injection molding or slip casting process. After blow-drying the precursory ceramic core is calcined at temperatures between 70 and 800.degree. C. The ceramic core can be optionally immersed into a lacquer solution to impart a water-proof film on its surface, so as to allow it to withstand attacks from steam during autoclaving.
摘要翻译：制备了一种水溶性陶瓷芯，其可有利地用于精密铝合金物体的压铸，重力铸造和熔模铸造。陶瓷芯包含：（a）60至70重量％的氧化铝（A12O3）粉; （b）约15至25重量％的锆石（ZrSiO 4）粉; （c）约5至15重量％的磷酸氢钠（Na 2 HPO 4）; 和（d）约5重量％的糖。在制备陶瓷芯时，首先将磷酸氢钠和糖溶解在水中形成磷酸氢钠/糖溶液。然后将氧化铝粉和锆石粉加入到磷酸氢钠/糖溶液中以形成浆料，其使用注射成型或滑移浇铸法形成前体陶瓷芯。在吹干之后，将前体陶瓷芯在70至800℃的温度下煅烧。陶瓷芯可以任选地浸入漆溶液中以在其表面上施加防水膜，以使其能够抵抗高压灭菌时蒸汽。

43. 发明授权

US5582232A Inorganic foundry binder systems and their uses 失效
公开(公告)号：US5582232A
公开(公告)日：1996-12-10
申请号：US371643
申请日：1995-01-12
申请人： Ruth A. Bambauer , Heimo J. Langer , Steven C. Akey
发明人： Ruth A. Bambauer , Heimo J. Langer , Steven C. Akey
IPC分类号： B22C1/18 , C04B28/34 , C04B35/63
CPC分类号： C04B28/34 , B22C1/185 , C04B28/346 , C04B35/6309 , C04B2103/0025 , C04B2111/00431 , C04B2111/0087
摘要： This invention relates to inorganic no-bake foundry binder systems and their uses. The binder systems comprise as separate components: (A) mono-aluminum phosphate in an aqueous solution containing specified phosphoric acids, and (B) magnesium oxide; and certain specified zinc compounds in either the Component A, Component B or both. The components of the binder system react when they are mixed with a foundry aggregate to prepare foundry mixes which are used to prepare foundry molds and cores. The foundry molds and cores are used to cast metals.

44. 发明授权

US4396725A Process for preparing olivine sand cores and molds 失效
公开(公告)号：US4396725A
公开(公告)日：1983-08-02
申请号：US457322
申请日：1982-01-11
申请人： Charles E. Seeney , John F. Kraemer , Janis Ingerigtsen
发明人： Charles E. Seeney , John F. Kraemer , Janis Ingerigtsen
IPC分类号： B22C1/18 , C01B25/16 , C04B12/02 , C04B17/06
CPC分类号： C04B12/02 , B22C1/185 , C01B25/16 , Y02P20/128
摘要： An inorganic cement binder for a foundry aggregate comprising, in combination, potassium olivine phosphate and as a hardener therefor, water, aqueous sodium silicate, or aqueous phosphoric acid.

45. 发明授权

US4231984A Process for the production of molded phosphate bonded refractory articles 失效
$Process for the production of molded phosphate bonded refractory articles$
标题翻译：用于生产模压磷酸盐结合耐火材料的方法
公开(公告)号：US4231984A
公开(公告)日：1980-11-04
申请号：US892020
申请日：1978-03-31
申请人： Franz Hofmann
发明人： Franz Hofmann
IPC分类号： C04B38/00 , B22C1/18 , B28B1/30 , B28B1/38 , C04B35/63 , B28B1/16
CPC分类号： B22C1/185 , C04B35/6309
摘要： There is disclosed a process for applying a refractory filler and a hydrate of Al(H.sub.2 PO.sub.4).sub.3 or polyphosphates as a binder to a single or multi-layered carrier material to form a single or multi-layered, thin-walled structure subsequently hardened on the carrier material. The hardening is preferably conducted at a temperature below 400.degree. C. There is thus obtained a phosphate-bonded, thin-walled shaped article which is refractory at temperatures above 1300.degree. C.
摘要翻译：公开了将耐火填料和Al（H 2 PO 4）3或多磷酸盐的水合物作为粘合剂施加到单层或多层载体材料上以形成单层或多层薄壁结构的方法，随后在载体材料。硬化优选在低于400℃的温度下进行。因此，获得了在1300℃以上耐火材料的磷酸盐键合的薄壁形状的制品。

46. 发明授权

US3950177A Refractory compositions 失效
$Refractory compositions$
公开(公告)号：US3950177A
公开(公告)日：1976-04-13
申请号：US420077
申请日：1973-11-29
申请人： James Derek Birchall , John Edward Cassidy
发明人： James Derek Birchall , John Edward Cassidy
IPC分类号： B22C1/16 , B22C1/18 , C04B12/02 , C04B33/13 , C04B35/63 , C04B35/66
CPC分类号： C04B33/1305 , B22C1/167 , B22C1/185 , C04B12/022 , C04B35/6309
摘要： A complex suitable for making shapes used as moulds and bricks, for preparing coatings and for use as cements, fillers and the like comprising a halogen-containing complex phosphate of aluminum wherein the gram atom ratio of aluminum to phosphorus is substantially 1:1 and containing at least one chemically-bound molecule of water and/or chemically-bound oxygen-containing organic molecules, as binder.

47. 发明授权

US2928750A Investment material for precision casting 失效
公开(公告)号：US2928750A
公开(公告)日：1960-03-15
申请号：US84443259
申请日：1959-10-05
申请人： PRE VEST INC
发明人： WATTS CLAUDE H
IPC分类号： B22C1/18
CPC分类号： B22C1/185 , B22C1/186

48. 发明授权

US2345211A Investment composition 失效
公开(公告)号：US2345211A
公开(公告)日：1944-03-28
申请号：US40269941
申请日：1941-07-16
申请人： EDMUND A STEINBOCK
发明人： ROBERT NEIMAN
IPC分类号： B22C1/18
CPC分类号： B22C1/185 , B22C1/18

49. 发明授权

US2233702A Refractory mold material for cast metal products 失效
$Refractory mold material for cast metal products$
标题翻译：用于铸造金属制品的耐火模具材料
公开(公告)号：US2233702A
公开(公告)日：1941-03-04
申请号：US34598140
申请日：1940-07-17
申请人： JOEL GROSSMAN CORNELL
发明人： JOEL GROSSMAN CORNELL
IPC分类号： A61K6/06 , B22C1/00 , B22C1/18
CPC分类号： B22C1/185 , B22C1/00

50. 发明授权

US1751482A Core and process of forming the same 失效
标题翻译：核心与形成过程相同
公开(公告)号：US1751482A
公开(公告)日：1930-03-25
申请号：US20028327
申请日：1927-06-20
申请人： LEASMAN EMIL L
发明人： LEASMAN EMIL L
IPC分类号： B22C1/18
CPC分类号： B22C1/181 , B22C1/185

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