-
81.发明申请公开(公告)号：US20090025606A1
公开(公告)日：2009-01-29
申请号：US12157428
申请日：2008-06-10
CPC分类号： B22C1/02
摘要： A method for producing a core sand and/or mold sand for foundry purposes mixes a granular mineral mold base material with an additive and an inorganic binder. An inorganic swelling additive having a swelling index of at least 9, in other words a higher swelling index that that achieved for coal, is used as an additive. Alternatively, it is also possible to work with an inorganic additive, for example with macro-crystalline graphite, whereby the finished mixture of the mold base material, the additive, and the binder is compacted to a density increase of at least 20 g/dm3.
摘要翻译： 用于制造用于铸造目的的芯砂和/或模砂的方法将颗粒状矿物模具基材与添加剂和无机粘合剂混合。 溶胀指数至少为9的无机溶胀添加剂，换句话说，对煤获得的较高的溶胀指数用作添加剂。 或者，还可以与无机添加剂一起使用，例如用大理石石墨，由此模制基材，添加剂和粘合剂的成品混合物压实至至少20g / dm 3的密度增加 。
-
公开(公告)号：US20080119347A1
公开(公告)日：2008-05-22
申请号：US11938374
申请日：2007-11-12
CPC分类号： B22C1/02 , B22C1/00 , B22C1/183 , B22C1/22 , B22C1/222 , B22C9/04 , C04B35/111 , C04B35/484 , C04B35/486 , C04B35/50 , C04B35/505 , C04B35/6263 , C04B35/62665 , C04B35/6316 , C04B35/632 , C04B35/63416 , C04B2235/3208 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3244 , C04B2235/3246 , C04B2235/3248 , C04B2235/3418 , C04B2235/48 , C04B2235/5436
摘要： The present invention relates to novel binder and slurry formulations used to form molds for casting metal alloys and, more particularly, reactive metal alloys. The shell molds lead to more uniform castings which exhibit limited alpha case as compared to other currently available shell mold systems.
摘要翻译： 本发明涉及用于形成用于铸造金属合金的模具的新型粘合剂和浆料配方，更具体地，涉及活性金属合金。 与其他现有的外壳模具系统相比，壳模具导致更均匀的铸件，其表现出有限的α壳。
-
83.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：US20070102137A1
公开(公告)日：2007-05-10
申请号：US11591035
申请日：2006-10-31
申请人： Gustav Dierssen
发明人： Gustav Dierssen
摘要： A method for reducing pollutant emissions from a metal casting case used in foundry practice. The metal casting case includes at least a molding material formed to a metal casting mold. The pollutant emissions are released from material making up the casting cases after pouring molten metal in the metal casting mold. The method includes the steps of adding at least one additional combustible substance to at least one region of the casting mold located outside of a contact region of the casting mold with the casting, and burning the at least one additional combustible substance in one of a gaseous and vaporized state together with the pollutant emissions.
-
公开(公告)号：US20060081350A1
公开(公告)日：2006-04-20
申请号：US10964903
申请日：2004-10-14
申请人： Francois Batllo , David Viers , Jeffrey Mosher
发明人： Francois Batllo , David Viers , Jeffrey Mosher
摘要： A method of improving the removal of an investment casting shell surrounding a metallic article. The shell is made from the deposit of layers refractory slurry and stucco onto a pattern. The shell contains, after firing, an amount of an alkali metal oxide or an alkaline earth metal oxide sufficient to reduce the strength of the shell. By this invention, after firing of the shell and pouring of the molten metallic part into the shell, the shell is hydrated to further reduce the strength of the shell, to facilitate its removal from the metallic part.
-
公开(公告)号：US06972302B2
公开(公告)日：2005-12-06
申请号：US10653363
申请日：2003-09-02
摘要： Thermal expansion of sand cores and the formation of vein defects during metal casting operations can be substantially eliminated, with substantially reduced costs, by using an anti-veining material comprising less than about 4% by weight of a lithia-containing material, and at least about 1% by weight of ferric oxide (Fe2O3), said anti-veining material preferably comprising 2.5% Li2O, 10–25% of TiO2, 15–25% Al2O3, 10–25% of Fe3O4, and 60–70% of SiO2 mixed with about 1% by weight of Fe2O3, preferably red iron oxide.
摘要翻译： 通过使用包含小于约4重量％的含锂化合物材料的抗静脉材料，并且至少包含至少约4重量％的抗静脉材料，可以基本上消除在金属铸造操作期间砂芯的热膨胀和静脉缺陷的形成，并且显着降低成本 约1重量％的氧化铁（Fe 2 O 3 O 3），所述抗静电材料优选包含2.5％的Li 2 O，10 -25％的TiO 2，15-25％的Al 2 O 3 3，10-25％的Fe 3 3 / 与O 2 O 3混合的大约1重量％的Fe 2 O 3的混合物的60-70％ SUB>，优选红色氧化铁。
-
公开(公告)号：US20050092459A1
公开(公告)日：2005-05-05
申请号：US10697378
申请日：2003-10-30
申请人： Daniel McGuire
发明人： Daniel McGuire
IPC分类号： B22C1/02 , B22C9/04 , C08L20060101
CPC分类号： B22C1/183 , B22C1/02 , B22C1/181 , C04B35/18 , C04B35/481 , C04B35/62665 , C04B35/6316 , C04B35/634 , C04B35/6365 , C04B2235/3208 , C04B2235/3217 , C04B2235/3248 , C04B2235/3418 , C04B2235/3463 , C04B2235/36 , C04B2235/3826 , C04B2235/5427 , C04B2235/5436
摘要： A composition and method for forming investment casting shells includes using colloidal silica, zircon flour, and fused silica in a slurry which is applied to a pattern. After the slurry is applied to the pattern, it is allowed to partially or completely solidify. After the shell has solidified, the pattern may be melted or otherwise removed. A molten material is introduced into the shell and allowed to cool to form an article. Finally, the shell is broken away or otherwise removed from the article. The improved shell slurry composition and corresponding method minimizes pattern-to-pour cycle times and is environmentally friendly.
摘要翻译： 用于形成熔模铸造壳的组合物和方法包括在施加到图案的浆料中使用胶体二氧化硅，锆石粉和熔融二氧化硅。 在将浆料施加到图案之后，允许其部分或完全固化。 在外壳固化后，图案可能被熔化或以其他方式去除。 将熔融材料引入壳体中并使其冷却以形成制品。 最后，外壳被打破或从物品中移除。 改进的壳浆料组合物和相应的方法将模式到浇注循环时间最小化并且是环境友好的。
-
公开(公告)号：US20040238155A1
公开(公告)日：2004-12-02
申请号：US10486772
申请日：2004-07-06
发明人： Gustav Dierssen
IPC分类号： B22C001/00
摘要： The invention relates to a method for reducing pollutant emissions, released particularly in the form of pyrolysis products from metal casting cases, used in foundry practices. The aim of the invention is to reduce said emissions at low cost. This aim is achieved, whereby at least one additional combustible substance is added to the metal casting cases. Said substance changes into gaseous form on heating, provided that it is not gaseous, and burns together with the pollutants when leaving the metal casting cases. The additional combustible substance contains at least one organic substance, preferably a wax or an oil, ideally a ketone, an aldehyde, ether or alcohol. It can also be advantageously formed by a combustible gas (natural gas).
摘要翻译： 本发明涉及一种用于减少污染物排放的方法，特别是用于铸造实践中的金属铸造件的热解产物形式。 本发明的目的是以低成本降低所述排放。 实现这一目的，由此在金属铸造壳体中添加至少一种另外的可燃物质。 所述物质在加热时变成气态，只要它不是气态的，并且在离开金属铸件时与污染物一起燃烧。 另外的可燃物质含有至少一种有机物质，优选蜡或油，理想地是酮，醛，醚或醇。 也可以由可燃气体（天然气）形成。
-
公开(公告)号：US06447593B1
公开(公告)日：2002-09-10
申请号：US09832469
申请日：2001-04-12
申请人： Nicholas Edward Sargent , June-Sang Siak , Mei Cai
发明人： Nicholas Edward Sargent , June-Sang Siak , Mei Cai
IPC分类号： B22C902
CPC分类号： B22C1/2293 , B22C1/02 , B22C9/046 , B22C9/10 , B22C9/123
摘要： Coating foundry sand with a thin layer of an oxidation-promoting catalyst. Preferred catalysts comprise ferric and cupric oxides. The catalysts promote the oxidation of any polymeric binder or residues admixed with the sand. The sand is coated by wetting the grains with a solution of a catalyst precursor, drying the sand and baking the sand in air to convert the precursor to the catalyst.
摘要翻译： 涂层铸造砂与薄层的氧化促进催化剂。 优选的催化剂包括三价铁和氧化铜。 催化剂促进与砂混合的任何聚合物粘合剂或残余物的氧化。 通过用催化剂前体的溶液润湿颗粒来涂覆沙子，干燥砂子并在空气中烘烤砂子以将前体转化为催化剂。
-
公开(公告)号：US5786409A
公开(公告)日：1998-07-28
申请号：US659614
申请日：1996-06-06
申请人： Kenneth R. Kurple
发明人： Kenneth R. Kurple
IPC分类号： B22C1/20 , B22C1/02 , B22C1/22 , B29C33/38 , C08G18/40 , C08G18/64 , C09J175/04 , B22C1/18 , C08K3/10
CPC分类号： B22C1/2293 , B22C1/02 , B22C1/2273 , C08G18/4081 , C08G18/6492
摘要： A process for making foundry cores and molds is disclosed as well as the core and molds which are produced as well as a sand binder. The binder is a resin which includes a lignin dissolved in a suitable solvent reacted and/or cured with an isocyanate material. The lignin used contains no more than 2% sodium ions. A polyether polyol may be added which has a functionality of greater than 3 and preferably at least 6. A tin catalyst is disclosed for use in the system which has a valence of +4 and one soluble in the system. A material is added to the system to give the mold or core a resistance to the water in core and mold washes. Suitable materials are propylene oxide derivatives of bis phenol A.
摘要翻译： 公开了制造铸造芯和模具的方法以及生产的芯和模具以及砂粘合剂。 粘合剂是一种树脂，其包括溶解在与异氰酸酯材料反应和/或固化的合适溶剂中的木质素。 使用的木质素含有不超过2％的钠离子。 可以加入具有大于3，优选至少为6的官能度的聚醚多元醇。公开了用于体系中的价态为+4和一种可溶于体系的锡催化剂。 将一种材料加入到系统中以使模具或芯体具有耐芯性和模具清洗性。 合适的材料是双酚A的环氧丙烷衍生物。
-
-
-
-
-
-
-
-
-
搜索结果
300 条记录 (耗时 0.018 秒)
