-
1.发明授权Ceramic cores for casting superalloys and refractory metal composites, and related processes 有权用于铸造超级合金和难熔金属复合材料的陶瓷芯，以及相关工艺公开(公告)号：US07946335B2
公开(公告)日：2011-05-24
申请号：US12870200
申请日：2010-08-27
CPC分类号： B22C9/10 , B22C7/02 , B22C9/04 , C04B35/50 , C04B35/505 , C04B38/00 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3229 , C04B2235/402 , C04B2235/602 , C04B2235/6021 , C04B2235/6022 , C04B2235/6023 , C04B2235/6027 , C04B2235/604 , C04B2235/6562 , C04B2235/6567 , C04B2235/80 , C04B2235/9615 , C04B38/0054 , C04B38/0061 , C04B38/0074
摘要： A rare earth-based core for use in the casting of a reactive metal is described. The core contains a ceramic composition which includes at least about 10% by weight of monoclinic rare earth aluminate (RE4Al2O9), wherein RE represents at least one rare earth element; and at least about 10% by weight of at least one free rare earth oxide. The ceramic phase of the composition may include a microstructure which comprises a multitude of substantially spherical pores which are formed as a result of the removal of aluminum metal from the core composition during a heat treatment step. Additional embodiments relate to a method for the fabrication of a ceramic core, employing a rare earth oxide, aluminum metal, and a binder. Methods for removing cores from a cast part are also described.
摘要翻译： 描述了用于铸造无功金属的稀土类芯体。 核心包含陶瓷组合物，其包含至少约10重量％的单斜晶系稀土铝酸盐（RE4Al2O9），其中RE表示至少一种稀土元素; 和至少约10重量％的至少一种游离稀土氧化物。 组合物的陶瓷相可以包括微观结构，其包含多个基本上球形的孔，其是在热处理步骤期间从芯组合物中除去铝金属而形成的。 另外的实施方案涉及使用稀土氧化物，铝金属和粘合剂来制造陶瓷芯的方法。 还描述了从浇铸部件中去除芯的方法。
-
2.发明授权Rare earth-based core constructions for casting refractory metal composites, and related processes 有权用于铸造难熔金属复合材料的稀土基核心结构及相关工艺公开(公告)号：US07610945B2
公开(公告)日：2009-11-03
申请号：US11540737
申请日：2006-09-29
摘要： A method of fabricating a core for a ceramic shell mold is disclosed. A porous core body is formed from at least about 50% by weight of at least one rare earth metal oxide. The core body is heated under heating conditions sufficient to provide the core with a density of about 35% to about 80% of its theoretical density. The core body is then infiltrated with a liquid colloid or solution of at least one metal oxide compound, e.g., rare earth metal oxides; silica, aluminum oxide, transition metal oxides, and combinations thereof. The infiltrated core body is then heated to sinter the particles without substantially changing the dimensions of the core body. Mold-core assemblies which include such a core body are also described. A description of processes for casting a turbine component, using the core, is also set forth herein.
摘要翻译： 公开了一种制造用于陶瓷壳模的芯的方法。 多孔芯体由至少约50重量％的至少一种稀土金属氧化物形成。 芯体在足以提供核心的密度为其理论密度的约35％至约80％的加热条件下加热。 然后将芯体用至少一种金属氧化物化合物例如稀土金属氧化物的液体胶体或溶液渗透; 二氧化硅，氧化铝，过渡金属氧化物及其组合。 然后将渗透的芯体加热以烧结颗粒，而基本上不改变芯体的尺寸。 还描述了包括这种芯体的模芯组件。 本文还阐述了使用该芯铸造涡轮机部件的方法。
-
3.发明申请Rare earth-based core constructions for casting refractory metal composites, and related processes 有权用于铸造难熔金属复合材料的稀土基核心结构及相关工艺公开(公告)号：US20080078520A1
公开(公告)日：2008-04-03
申请号：US11540737
申请日：2006-09-29
IPC分类号： B22C9/10
摘要： A method of fabricating a core for a ceramic shell mold is disclosed. A porous core body is formed from at least about 50% by weight of at least one rare earth metal oxide. The core body is heated under heating conditions sufficient to provide the core with a density of about 35% to about 80% of its theoretical density. The core body is then infiltrated with a liquid colloid or solution of at least one metal oxide compound, e.g., rare earth metal oxides; silica, aluminum oxide, transition metal oxides, and combinations thereof. The infiltrated core body is then heated to sinter the particles without substantially changing the dimensions of the core body. Mold-core assemblies which include such a core body are also described. A description of processes for casting a turbine component, using the core, is also set forth herein.
摘要翻译： 公开了一种制造用于陶瓷壳模的芯的方法。 多孔芯体由至少约50重量％的至少一种稀土金属氧化物形成。 芯体在足以提供核心的密度为其理论密度的约35％至约80％的加热条件下加热。 然后将芯体用至少一种金属氧化物化合物例如稀土金属氧化物的液体胶体或溶液渗透; 二氧化硅，氧化铝，过渡金属氧化物及其组合。 然后将渗透的芯体加热以烧结颗粒，而基本上不改变芯体的尺寸。 还描述了包括这种芯体的模芯组件。 本文还阐述了使用该芯铸造涡轮机部件的方法。
-
公开(公告)号：US06860714B1
公开(公告)日：2005-03-01
申请号：US10334120
申请日：2002-12-30
申请人： Thomas Francis McNulty , Frederic Joseph Klug , Shyh-Chin Huang , Michael Francis Xavier Gigliotti, Jr.
发明人： Thomas Francis McNulty , Frederic Joseph Klug , Shyh-Chin Huang , Michael Francis Xavier Gigliotti, Jr.
CPC分类号： F01D5/14 , F05D2230/21 , F05D2300/21
摘要： An airfoil for an internal combustion engine, such as a gas turbine, formed by use of a preform. The airfoil includes: an outer surface forming the foil shape; and a plurality of craze-free cooling passages extending through the airfoil. In the preferred embodiment, a root on the airfoil joins the airfoil to the hub of a gas turbine vane assembly. Also, in the preferred embodiment, the gas turbine vane assembly is adapted to receive replaceable airfoils.
摘要翻译： 用于通过使用预成型件形成的用于诸如燃气轮机的内燃机的翼型件。 翼型件包括：形成箔片形状的外表面; 以及延伸穿过翼型件的多个无热水冷却通道。 在优选实施例中，翼型上的根部将翼型件连接到燃气轮机叶片组件的轮毂。 此外，在优选实施例中，燃气轮机叶片组件适于接收可更换的翼型件。
-
公开(公告)号：US06695582B2
公开(公告)日：2004-02-24
申请号：US10162739
申请日：2002-06-06
IPC分类号： F01D518
CPC分类号： F01D5/187 , F05D2240/126 , F05D2250/241 , F05D2250/314 , F05D2260/22141 , Y02T50/672 , Y02T50/673 , Y02T50/676
摘要： A turbine blade comprises an external pressure side plate comprising a plurality of external pressure ribs, an internal pressure side plate comprising a plurality of internal pressure ribs, and a plurality of pressure flow redirection areas. The external pressure side plate is disposed over the internal pressure side plate to form a pressure side double wall. The external pressure ribs are disposed at a first angle with respect to a blade span reference line and the internal pressure ribs are disposed at a second angle with respect to the blade span reference line to form the pressure flow redirection areas. The pressure side double wall is configured to pass a coolant through the pressure side double wall. A fabrication method aligns the external pressure side plate and the internal pressure side plate to form the pressure flow redirection areas between the external pressure side plate and the internal pressure side plate.
摘要翻译： 涡轮叶片包括包括多个外部压力肋的外部压力侧板，包括多个内部压力肋的内部压力侧板和多个压力流动重定向区域。 外压侧板设置在内压侧板上，形成压力侧双壁。 外部压力肋相对于叶片跨度基准线以第一角度设置，并且内部压力肋相对于叶片跨距基准线设置成第二角度以形成压力流动重定向区域。 压力侧双壁构造成使冷却剂通过压力侧双壁。 制造方法使外压侧板和内压侧板对准，以形成外压侧板和内压侧板之间的压力重定向区域。
-
公开(公告)号：US06467534B1
公开(公告)日：2002-10-22
申请号：US09542737
申请日：2000-04-05
申请人： Frederic Joseph Klug , Michael Francis Xavier Gigliotti, Jr. , Wayne David Pasco , Paul Steven Svec
发明人： Frederic Joseph Klug , Michael Francis Xavier Gigliotti, Jr. , Wayne David Pasco , Paul Steven Svec
IPC分类号： B22C100
CPC分类号： B22C9/04
摘要： A ceramic casting shell mold having a pre-selected shape comprises alternate, repeating layers of a ceramic coating material and a ceramic stucco, defining a total thickness of the shell mold; and a ceramic-based reinforcing sheet disposed in the alternate, repeating layers of coating material and stucco at an intermediate thickness. The ceramic-based reinforcing sheet comprises a one-piece monolithic, integral body, which comprises a pattern of holes that enhance bonding between the ceramic-based reinforcing sheet and adjacent ones of the alternate, repeating layers of ceramic coating material. The ceramic-based reinforcing sheet conforms to the shape of the mold and providing structural reinforcement to the mold.
摘要翻译： 具有预选形状的陶瓷铸造壳模具包括限定壳模的总厚度的交替重复层陶瓷涂层材料和陶瓷灰泥; 以及设置在中间厚度的涂层材料和灰泥的交替重复层中的陶瓷基增强片。 陶瓷基增强片包括一体式整体式整体，其包括增强陶瓷基增强片与陶瓷涂层材料的相邻重复层之间的粘合的孔的图案。 陶瓷基增强板符合模具的形状并为模具提供结构加固。
-
公开(公告)号：US06395815B1
公开(公告)日：2002-05-28
申请号：US09503617
申请日：2000-02-11
IPC分类号： C08K334
CPC分类号： H01B3/46
摘要： A high temperature insulating composite composition comprising at least one ground silicate mineral and at least one silicone polymer. The at least one ground silicate mineral is at least one mineral selected from the group of olivine group; garnet group; aluminosilicates; ring silicates; chain silicates; and sheet silicates. The high temperature insulating material has particular usefulness for insulating electrical wires.
摘要翻译： 一种高温绝缘复合组合物，其包含至少一种研磨的硅酸盐矿物和至少一种硅氧烷聚合物。 所述至少一种研磨的硅酸盐矿物是选自橄榄石组的至少一种矿物; 石榴石组 铝硅酸盐 环硅酸盐; 链状硅酸盐; 和片状硅酸盐。 高温绝缘材料对绝缘电线具有特殊的用途。
-
8.发明授权Method for removing volatile components from a ceramic article, and related processes 失效从陶瓷制品中除去挥发性组分的方法及相关方法公开(公告)号：US06368525B1
公开(公告)日：2002-04-09
申请号：US09499121
申请日：2000-02-07
IPC分类号： B05B300
CPC分类号： B22C1/00 , B22C1/222 , B22C9/10 , B22C9/126 , C04B35/111 , C04B35/638
摘要： A method of removing substantially all of the volatile component in a green, volatile-containing ceramic article is disclosed. The method comprises freezing the ceramic article; and then subjecting the frozen article to a vacuum for a sufficient time to freeze-dry the article. Frequently, the article is heated while being freeze-dried. Use of this method efficiently reduces the propensity for any warpage of the article. The article is often formed from a ceramic slurry in a gel-casting process. A method for fabricating a ceramic core used in investment casting is also described.
摘要翻译： 公开了一种基本上除去绿色含挥发物的陶瓷制品中的所有挥发性成分的方法。 该方法包括冷冻陶瓷制品; 然后对冷冻制品进行真空充分的时间以使制品冷冻干燥。 通常，将物品在冷冻干燥时加热。 使用这种方法有效地降低了物品翘曲的倾向。 该制品通常由凝胶浇铸工艺中的陶瓷浆料形成。 还描述了用于熔模铸造中使用的陶瓷芯的制造方法。
-
9.发明授权Core compositions and articles with improved performance for use in castings for gas turbine applications 有权具有改进性能的核心组合物和制品用于燃气轮机应用的铸件公开(公告)号：US06345663B1
公开(公告)日：2002-02-12
申请号：US09617013
申请日：2000-07-14
IPC分类号： B22D904
CPC分类号： C04B38/0058 , B22C1/22 , C04B35/111 , C04B35/634 , C04B35/63444 , C04B35/65 , C04B2111/00939 , C04B35/10 , C04B38/062
摘要： A method for fabricating a fired ceramic article, a green product, and a fired ceramic article, all for use as a core in the investment casting of directionally solidified eutectic and superalloy material. A ceramic slurry is prepared of alumina, aluminum and a solution of a polymerizable binder in a liquid. The slurry is extruded under low pressure into a closed cavity to form a gelled green product which is subsequently heated in an oxygen-containing atmosphere, wherein the oxygen reacts with the aluminum in the green product to form alumina which advantageously causes an increase in volume of the green product which counters the shrinkage effects of heating. The polymerizable binder is of a type which cross-links with the alumina and upon heating the liquid component of such binder vaporizes and the remaining polymer component subsequently gasifies on further heating to leave desired interstitial pores within the green product, which assist in allowing the oxygen to permeate the green product, which assists in oxidation of the aluminum through the green product. The green product is thereafter sintered to form a substantially dimensionally precise ceramic article suitable for precision-casting of superalloy materials.
摘要翻译： 一种烧制陶瓷制品，绿色产品和烧制陶瓷制品的制造方法，全部用作定向凝固的共晶和超合金材料的熔模铸造中的核心。 制备氧化铝，铝和可聚合粘合剂在液体中的溶液的陶瓷浆料。 将浆料在低压下挤压成封闭的空腔以形成凝胶状绿色产品，随后在含氧气氛中加热，其中氧气与绿色产品中的铝反应形成氧化铝，这有利地导致体积增加 这是绿色产品，反映了加热的收缩效应。 可聚合粘合剂是与氧化铝交联并且在加热这种粘合剂的液体组分时蒸发的类型，并且剩余的聚合物组分随后在进一步加热下气化以在绿色产品内留下所需的间隙，这有助于允许氧 渗透绿色产品，这有助于通过绿色产品氧化铝。 然后将绿色产品烧结以形成适用于超级合金材料的精密铸造的基本尺寸精确的陶瓷制品。
-
公开(公告)号：US6051642A
公开(公告)日：2000-04-18
申请号：US931085
申请日：1997-09-15
CPC分类号： H01B3/46
摘要： A high temperature insulating composite composition comprising at least one ground silicate mineral and at least one silicone polymer. The at least one ground silicate mineral is at least one mineral selected from the group of olivine group; garnet group; aluminosilicates; ring silicates; chain silicates; and sheet silicates. The high temperature insulating material has particular usefulness for insulating electrical wires.
-
-
-
-
-
-
-
-
-
搜索结果
31 条记录 (耗时 0.022 秒)