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公开(公告)号：US12103066B2
公开(公告)日：2024-10-01
申请号：US17722481
申请日：2022-04-18
发明人： Guohong Ma , Zhaoyuan Ma , Zhaoxiang Ma , Weiming Yu , Gongwei Dai , Chenhang Ma
摘要： A high-temperature-resistant casting system comprises following casting elements in a connection relationship: a sprue cup (1) and a down sprue (2) connected with a lower end of the sprue cup, wherein the other end of the down sprue is connected with one end of a filtering element (6), the other end of the filtering element is connected with a three-way pipe (3), openings in two sides of the three-way pipe are connected with one end of an inlet section of a runner (4), and one end of an outlet section of the runner is connected with a tapered elbow (5). The casting elements comprise the following components in percentage by weight: 41-51% of a refractory fiber, 40-51% of a silicate fiber and 5-19% of a binder. A preparation method of the high-temperature-resistant casting system is further provided.
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公开(公告)号：US20230249244A1
公开(公告)日：2023-08-10
申请号：US17786208
申请日：2022-01-11
申请人： ASK Chemicals LLC
发明人： Paula VIVAS , Matthew SHOFFNER , Lee HORVATH
CPC分类号： B22C1/02 , B22C1/2273
摘要： An amount of a halloysite clay, used as an additive in a foundry mix composition having a polyurethane-based binder system, reduces the amount of smoke emitted when molds and cores formed from the composition are exposed to molten metal, as compared to when the halloysite clay is not used.
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公开(公告)号：US11717879B2
公开(公告)日：2023-08-08
申请号：US16092115
申请日：2017-04-10
发明人： Sandra Lehmann , Klaus Riemann , Nils Zimmer , Hermann Lieber , Jürgen Hübert
IPC分类号： B22C1/16 , B22C1/22 , B22C1/18 , B22C1/02 , B22C9/08 , C04B35/634 , C04B35/63 , C04B38/08 , C04B38/00
CPC分类号： B22C1/167 , B22C1/02 , B22C1/183 , B22C1/2253 , B22C1/2273 , B22C9/088 , C04B35/6303 , C04B35/63404 , C04B35/63476 , C04B38/0061 , C04B38/085 , C04B2235/3427
摘要： The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.
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公开(公告)号：US20190184449A1
公开(公告)日：2019-06-20
申请号：US16327943
申请日：2017-08-24
申请人： Imerys USA, Inc.
发明人： Victor S. LAFAY
CPC分类号： B22C1/02 , B22C1/10 , B22C1/18 , B22C9/02 , C04B28/001 , C04B2111/0087 , C04B2111/00939 , C04B14/024 , C04B14/041 , C04B14/046 , C04B14/06 , C04B14/20 , C04B14/042
摘要： Compositions useful for foundry processes such as green sand casting are discussed. The compositions may comprise an aggregate, at least one inorganic binding agent, and at least one high aspect ratio silicate. For example, the composition may comprise sand, one or more clay materials serving as a binding agent, and a high aspect ratio silicate chosen from mica, talc, or a combination thereof. The composition may be formed into a green sand mold for use in casting molded articles. Incorporation of the high aspect ratio silicate may help to improve the quality of the casted article.
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公开(公告)号：US20180001372A1
公开(公告)日：2018-01-04
申请号：US15545388
申请日：2016-12-14
申请人： ASK CHEMICALS L.P.
IPC分类号： B22C1/08 , C04B35/628 , B22C9/02
CPC分类号： B22C1/08 , B22C1/02 , B22C9/02 , C04B35/628 , C04B35/62802 , C04B2235/3201 , C04B2235/3409 , C04B2235/444 , C04B2235/445
摘要： A molding material mixture for producing casting molds for metal processing, particularly for non-ferrous metals, such as aluminum or magnesium, is intended to reduce problems such as metal-mold reaction and/or shrinkage porosity defect. The free-flowing refractory molding material in the molding material mixture is coated with a mixture of inorganic salts exhibiting a eutectic melting point in the range of about 400 C to about 500 C, particularly in the range of about 420 C to about 460 C. Preferably this coating occurs by contacting the inorganic salt mixture with the molding material mixture at a temperature between 500 C and 700 C, in a manner that maintains the free-flowing nature of the coated product. One mixture of inorganic salts that is used is a mixture consisting of, by weight: 74% potassium fluoroborate; 15% potassium chloride; and 12% potassium fluoride. This mixture has a eutectic melting point of 420 C.
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公开(公告)号：US20170297087A1
公开(公告)日：2017-10-19
申请号：US15132031
申请日：2016-04-18
CPC分类号： B22C9/10 , B22C1/02 , B22C1/22 , B22C3/00 , C04B35/14 , C04B35/524 , C04B35/63476 , C04B35/6348 , C04B35/806 , C04B2235/422 , C04B2235/48 , C04B2235/5216 , C04B2235/526 , C04B2235/5436 , C04B2235/5463 , C04B2235/616
摘要： A method to form a displacement, the method including disposing a powder blend comprising a plurality of ground ceramic particles and a plurality of ground resin particles into a mold, densifying the powder blend while in the mold, heating the mold to form a first displacement, impregnating said first displacement with a polymer precursor compound to form a second displacement, and heating the second displacement to form a third displacement.
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公开(公告)号：US20170173678A1
公开(公告)日：2017-06-22
申请号：US15369948
申请日：2016-12-06
摘要： The present invention discloses a mold core assembly. The mold core assembly includes at least one core. The core comprises a main body member and a high temperature-resistant material with a melting point over 1500° C., the length-diameter ratio of the main body member is greater than 50, and the main body member includes a high melting point metal with a melting point over 1500° C. The mold core assembly also includes a shell mold, wherein the shell mold encloses the core to form a cavity between the shell mold and the core, so as to accommodate a molten casting metal. The present invention further discloses an investment casting method.
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公开(公告)号：US09511417B2
公开(公告)日：2016-12-06
申请号：US14090974
申请日：2013-11-26
IPC分类号： B22C1/00 , B22C1/02 , B22C9/22 , B22D21/06 , F01D5/28 , C04B28/06 , C04B35/057 , C04B35/117 , C04B35/44 , C04B35/565 , C04B35/626 , C04B35/63 , C04B38/08 , B22C9/04 , C04B111/00
CPC分类号： B22C1/02 , B22C1/00 , B22C9/04 , B22C9/22 , B22D21/06 , C04B28/06 , C04B35/057 , C04B35/117 , C04B35/44 , C04B35/565 , C04B35/6263 , C04B35/6303 , C04B38/08 , C04B2111/00939 , C04B2235/3208 , C04B2235/3222 , C04B2235/3826 , C04B2235/5436 , C04B2235/6028 , C04B2235/9676 , F01D5/28 , Y02T50/671 , C04B14/303 , C04B14/324 , C04B14/301 , C04B35/10
摘要： The disclosure relates generally to mold compositions and methods of molding and the articles so molded. More specifically, the disclosure relates to silicon carbide-containing mold compositions, silicon carbide-containing intrinsic facecoat compositions, and methods for casting titanium-containing articles, and the titanium-containing articles so molded.
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公开(公告)号：US20160214165A1
公开(公告)日：2016-07-28
申请号：US14605224
申请日：2015-01-26
发明人： Cathleen Ann HOEL , John Thomas LEMAN , Thomas Francis MCNULTY , Michael Joseph O'BRIEN , Ayesha Maria GONSALVES , Matthew Thomas JOHNSON , Frederic Joseph KLUG
CPC分类号： B22C1/02 , B22C9/04 , B22C9/10 , C04B35/16 , C04B35/632 , C04B35/6325 , C04B38/0605 , C04B2111/00939 , C04B2235/3244 , C04B2235/3418 , C04B2235/483 , C04B2235/6022 , C04B2235/606 , C08G77/12 , C08G77/20 , C08K3/36 , C08K2003/2244 , C08L83/00 , C08L83/04
摘要： Methods and compositions for forming porous ceramic articles are provided. The method is forming a composition including liquid siloxanes, ceramic particles, a catalyst, and a pore-former; shaping the composition; curing the composition to form a green body; volatilizing the pore-former before or after curing the composition; and firing the green body. The pore-former is a silicon-bearing agent with an average molecular weight under 1300 grams per mole, or a molecule with a molecular weight under 1,000 grams per mole and a freezing point between −40° C. and 25° C. that is soluble in the liquid. The composition comprises liquid siloxanes, ceramic particles, a catalyst, and a pore-former, which is an agent with an average molecular weight under 1300 grams per mole or a molecule with a molecular mass under 1,000 grams per mole and a freezing point between −40° C. and 25° C. that is soluble in the liquid.
摘要翻译： 提供了形成多孔陶瓷制品的方法和组合物。 该方法是形成包括液体硅氧烷，陶瓷颗粒，催化剂和成孔剂的组合物; 塑造组成; 固化组合物以形成生坯体; 在固化组合物之前或之后挥发成孔剂; 并发射绿色的身体。 成孔剂是平均分子量低于1300克/摩尔的含硅剂，或分子量低于1,000克/摩尔的分子和在-40℃和25℃之间的凝固点，即 溶于液体。 该组合物包含液体硅氧烷，陶瓷颗粒，催化剂和成孔剂，其是平均分子量低于1300克/摩尔的试剂或分子量小于1,000克/摩尔的分子和 - 40℃和25℃，其可溶于液体。
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10.发明申请PRECISION-CASTING CORE, PRECISION-CASTING CORE MANUFACTURING METHOD, AND PRECISION-CASTING MOLD 审中-公开精密铸造芯，精密铸造制造方法和精密铸造模具公开(公告)号：US20160114384A1
公开(公告)日：2016-04-28
申请号：US14893962
申请日：2014-05-28
发明人： Hidetaka OGUMA , Kazutaka MORI , Ikuo OKADA , Sachio SHIMOHATA
摘要： A precision-casting core body is formed by mixing and sintering silica particles and silica fume. The resistance of the mixture of silica fume decreases during heating injection molding, and hence the fluidity is improved by the addition of silica fume. As a result, since the fluidity is improved, it is possible to decrease an injection molding pressure when a core is manufactured. Further, the mixture can be applied to a thin compact and a complex compact with improved fluidity.
摘要翻译： 通过混合和烧结二氧化硅颗粒和硅灰形成精密铸造芯体。 在加热注射成型期间，硅灰混合物的电阻降低，因此通过添加硅灰来提高流动性。 结果，由于流动性得到改善，可以在制造芯时降低注射成型压力。 此外，该混合物可以应用于具有改善的流动性的薄型紧凑件和复合型紧凑件。
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