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1. 发明授权

US5623985A Apparatus and method for molding an article 失效
标题翻译：用于模制物品的装置和方法
公开(公告)号：US5623985A
公开(公告)日：1997-04-29
申请号：US614533
申请日：1996-03-13
申请人： Harold L. Wheaton , Lawrence D. Graham
发明人： Harold L. Wheaton , Lawrence D. Graham
IPC分类号： B22C9/00 , C30B11/00 , B22D27/04 , B22C9/04
CPC分类号： C30B11/002 , B22C9/00
摘要： An apparatus and method for use in casting a metal article includes a mold structure having wall sections with pins extending between the wall sections. The pins have opposite end portions which are embedded in the wall sections of the mold structure to interlock the pins and the wall sections of the mold structure. When molten metal is poured into the mold structure, the molten metal urges the wall sections away from each other. The wall sections are retained against movement relative to each other by the pins. Although the apparatus and method of the present invention can be utilized to cast many different types of articles, the invention is advantageously utilized in the casting of thin metal articles and specifically a thin metal article which is formed as a single crystal.
摘要翻译：用于铸造金属制品的装置和方法包括具有在壁部之间延伸的销的具有壁部分的模具结构。销具有相对的端部，其嵌入在模具结构的壁部分中以使销和模具结构的壁部分互锁。当熔融金属倒入模具结构中时，熔融金属迫使壁部分彼此远离。壁部分通过销钉相对于彼此保持抵抗运动。虽然本发明的装置和方法可用于铸造许多不同类型的制品，但是本发明有利地用于铸造薄金属制品，特别是形成为单晶的薄金属制品。

2. 发明授权

US5853044A Method of casting an article 失效
标题翻译：铸造物品的方法
公开(公告)号：US5853044A
公开(公告)日：1998-12-29
申请号：US636926
申请日：1996-04-24
申请人： Harold L. Wheaton , Lawrence D. Graham
发明人： Harold L. Wheaton , Lawrence D. Graham
IPC分类号： B22C7/02 , B22C9/04
CPC分类号： B22C7/02 , B22C21/14 , B22C9/04
摘要： A wax article pattern having a cavity corresponding to a cavity in a metal article is provided. The cavity in the wax article pattern is filled with a slurry of ceramic core material. The slurry of ceramic core material is solidified to form a core. The wax article pattern is enclosed by ceramic mold material. The ceramic mold material is solidified to form a mold. The wax pattern is removed from the mold to leave an article mold cavity. The article mold cavity is filled with molten metal which is solidified to form the metal article. A passage in the metal article may be formed by a pin which extends from the wax article pattern into the cavity in the wax article pattern and is enclosed by the slurry of ceramic core material.
摘要翻译：提供具有与金属制品中的空腔相对应的空腔的蜡制品图案。蜡制品图案中的空腔填充有陶瓷芯材料的浆料。将陶瓷芯材料的浆料固化形成核心。蜡制品图案由陶瓷模具材料包围。陶瓷模具材料被固化以形成模具。蜡模从模具中取出以留下制品模腔。制品模具腔充满熔融金属，其被固化以形成金属制品。金属制品中的通道可以由从蜡制品图案延伸到蜡制品图案中的空腔中并由陶瓷芯材料的浆料包围的销形成。

3. 发明授权

US5181550A Method of making a turbine engine component 失效
标题翻译：制造涡轮发动机部件的方法
公开(公告)号：US5181550A
公开(公告)日：1993-01-26
申请号：US760873
申请日：1991-09-16
申请人： William S. Blazek , Harold L. Wheaton
发明人： William S. Blazek , Harold L. Wheaton
IPC分类号： B22C9/04 , B22D19/04
CPC分类号： B22C9/04 , B22D19/04
摘要： A turbine engine component is made by forming a heat resistant layer on each airfoil of a plurality of airfoils. This heat resistant layer has a higher melting temperature than the melting temperature of material forming the airfoil. After heat resistant layers have been formed on the airfoils, a mold is formed around the airfoils. Molten metal is poured into the mold. The molten metal engages the heat resistant layers on the airfoils and solidifies to form a shroud ring. As the molten metal solidifies, slip joints between the solidified metal and end portions of the airfoils are free of bonds. The heat resistant layer is at least partially formed of chromium sesquioxide (Cr.sub.2 O.sub.3). A layer of chromium sesquioxide is formed by heating a nickel-chrome superalloy airfoil. As the airfoil is heated, the layer of metal immediately adjacent to the outer surface of the airfoil is depleted of chromium. This results in the formation of an outer layer of chromium sesquioxide and an inner layer from which the chromium has been depleted. Both layers have a higher melting temperature than the melting temperature of the material forming the airfoil.
摘要翻译：涡轮发动机部件通过在多个翼型件的每个翼型上形成耐热层而制成。该耐热层的熔融温度高于形成翼型的材料的熔融温度。在翼型件上形成耐热层之后，在翼型件周围形成模具。将熔融的金属倒入模具中。熔融金属接合翼型件上的耐热层并固化以形成护罩环。当熔融金属固化时，固化的金属与翼型的端部之间的滑动接头没有粘结。耐热层至少部分由三氧化二铬（Cr 2 O 3）形成。通过加热镍 - 铬超合金翼型形成一层三氧化二铬。当翼型件被加热时，与翼型件的外表面紧邻的金属层被耗尽铬。这导致形成三氧化二铬的外层和铬已经从其中耗尽的内层。两层的熔融温度高于形成翼型的材料的熔融温度。

4. 发明授权

US06349759B1 Apparatus and method for casting a metal article 失效
标题翻译：铸造金属制品的装置和方法
公开(公告)号：US06349759B1
公开(公告)日：2002-02-26
申请号：US09286403
申请日：1999-04-05
申请人： Harold L. Wheaton
发明人： Harold L. Wheaton
IPC分类号： B22C902
CPC分类号： B22C7/02 , B22C9/04 , B22C21/14
摘要： To form a mold for casting a metal article, metal pins are inserted through a pattern. End portions of the metal pins are bent after the pins have been inserted through the pattern. The pattern and opposite end portions of the metal pins are then covered with wet ceramic mold material. A mold structure is formed by drying the wet ceramic mold material. The pattern is then removed from the mold structure to leave a mold cavity with the metal pins extending through the metal cavity between opposite side sections of the mold structure. Molten metal is conducted into the mold cavity and force is transmitted between opposite side sections of the mold structure through the metal pins to retard movement between the side sections of the mold structure. The molten metal is solidified in the mold cavity and a metallurgical bond is formed between the metal in the mold cavity and the metal pins. The cast article is then removed from the mold structure. The cast article has a thin wall section with a thickness of 0.060 inches or less. The metal pins have cylindrical outer side surfaces with a diameter of 0.030 inches or less.
摘要翻译：为了形成用于铸造金属制品的模具，通过图案插入金属销。在销插入图案之后，金属销的端部弯曲。然后用湿陶瓷模具材料覆盖金属销的图案和相对端部。通过干燥湿陶瓷模具材料形成模具结构。然后将模型从模具结构中移除以留下模具腔，金属销在模具结构的相对侧部分之间延伸穿过金属腔。熔融金属被引入模腔中，并且力通过金属销在模具结构的相对侧部分之间传递，以阻止模具结构的侧部之间的运动。熔融金属在模腔中固化，并且在模腔中的金属和金属销之间形成冶金结合。然后将铸造制品从模具结构中取出。铸造制品具有厚度为0.060英寸或更小的薄壁部分。金属销具有直径为0.030英寸或更小的圆柱形外侧表面。

5. 发明授权

US6050325A Method of casting a thin wall 失效
标题翻译：铸造薄壁的方法
公开(公告)号：US6050325A
公开(公告)日：2000-04-18
申请号：US154260
申请日：1998-09-16
申请人： Harold L. Wheaton
发明人： Harold L. Wheaton
IPC分类号： B22C7/02 , B22C9/04 , B22D27/04
CPC分类号： B22C9/04 , B22C7/02
摘要： An article has a thin wall portion with a thickness of 0.060 inches or less, a width of at least four inches, and a height of at least six inches. In order to cast the article, a pattern having a configuration corresponding to the configuration of the article is covered with a coating of wet ceramic material. In addition, a reinforcing pattern, which is spaced from the portion of the article pattern having a configuration corresponding to the thin wall portion of the article, is covered with the wet ceramic material. Space between the article pattern and reinforcing pattern is filled with the wet ceramic material. A combined mold structure and reinforcing structure are formed by drying the wet ceramic material. The article pattern is removed from the mold structure to leave a mold cavity. Molten metal is conducted into the mold cavity. Force is transmitted from the mold structure to the reinforcing structure to prevent deformation of the mold structure under the influence of force applied against the mold structure by the molten metal.
摘要翻译：制品具有厚度为0.060英寸或更小，宽度至少为四英寸，高度至少为六英寸的薄壁部分。为了铸造物品，具有与制品的构造相对应的构造的图案被覆有湿陶瓷材料的涂层。此外，与物品的薄壁部分相对应的与物品图案的部分间隔开的加强图案被湿陶瓷材料覆盖。用湿陶瓷材料填充制品图案和增强图案之间的空间。通过干燥湿陶瓷材料形成组合的模具结构和增强结构。将制品图案从模具结构上移除以留下模腔。熔融金属被导入模腔。力从模具结构传递到加强结构，以防止模具结构在熔融金属施加在模具结构上的力的影响下变形。

6. 发明授权

US5053359A Cristobalite reinforcement of high silica glass 失效
标题翻译：方石英加强高硅石玻璃
公开(公告)号：US5053359A
公开(公告)日：1991-10-01
申请号：US523982
申请日：1990-05-16
申请人： Ted A. Loxley , Harold L. Wheaton
发明人： Ted A. Loxley , Harold L. Wheaton
IPC分类号： C03B32/02 , C03C10/00 , C03C10/14 , C30B15/10 , C30B35/00
CPC分类号： C30B15/10 , C03B32/02 , C03C10/0009 , C30B35/002
摘要： A high-density silica glass article with excellent thermal shock characteristics is formed from a high purity vitreous silica containing an aluminum compound as a crystallization aid and having a dense concentration of cristobalite muclei. The aluminum compound is aluminum oxide, aluminum hydroxide, an aluminum salt, or other aluminum-oxide precursor.A refractory silica glass crucible made according to the invention has remarkable advantages in a Czochralski crystal-growing process. The entire crucible can be crystallized during the initial melt down in the Cz furnace to provide a cristobalite inner surface which effectively resists attack by the molten silicon to minimize contamination problems during crystal growing.Another embodiment of the invention relates to a unique drawn silica glass with good flexural strength having fibrous oriented veins of cristobalite embedded in a matrix of vitreous silica and having remarkable resistance to deformation at temperatures of 1500.degree. C. and higher as are encountered in certain ferrous casting and investment casting processes.
摘要翻译：具有优异的热冲击特性的高密度二氧化硅玻璃制品由含有铝化合物作为结晶助剂并具有密集浓度的方英石核的高纯度二氧化硅二氧化硅形成。铝化合物是氧化铝，氢氧化铝，铝盐或其它氧化铝前体。根据本发明制造的耐火二氧化硅玻璃坩埚在切克拉斯基晶体生长过程中具有显着的优点。整个坩埚可以在Cz炉初始熔化过程中结晶，以提供方英石内表面，有效抵抗熔融硅的侵蚀，从而最大限度地减少晶体生长过程中的污染问题。本发明的另一个实施方案涉及具有良好弯曲强度的独特的拉制二氧化硅玻璃，其具有嵌入玻璃状二氧化硅基质中的方英石的纤维定向静脉，并且在1500℃和更高的温度下具有显着的抗变形，如在某些亚铁中遇到的铸造和熔模铸造工艺。

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