| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | METHOD FOR MAKING A MOLD FOR CASTING METALLIC MELTS | US12998170 | 2009-09-24 | US20110203761A1 | 2011-08-25 | Manfred Renkel |
| The invention relates to a method for producing a mould for casting metallic melts, in particular for casting titanium, titanium alloys or intermetallic titanium aluminides. Said method consists of the following steps: a contact layer is produced by applying a first slicker containing a first metal oxide powder as an essentially solid component to a moulded core, a first sanding layer is produced on the contact layer formed from the first slicker by sanding with a second metal oxide powder and the layer sequence formed from the contact layer and the first sanding layer is radiated with infrared light for a predetermined period of time. According to the invention, for speeding up the drying process, a first dry mass of the first slicker contains a hydraulic binder. | ||||||
| 62 | MATERIALS AND METHODS FOR PRODUCTION OF AGGREGATE-BASED TOOLING | US12794494 | 2010-06-04 | US20110000398A1 | 2011-01-06 | Matt Wallen; Jens Rossfeldt |
| A method for forming a composite structure, using a mandrel that is later removed from the composite structure, involves production of a mandrel by depositing a particulate mixture, including an aggregate and a binder, into a mold and removing the mandrel from the mold. The mandrel may be treated while still in the mold by heating, curing with an agent, microwave energy, or by some combination thereof. Once finished, the mandrel can be used in manufacturing polymer and/or composite components. The mandrel can also be include materials that can be easily removed from the finished composite structure by water, shakeout, chemically dissolving, or by some combination thereof | ||||||
| 63 | BOROSILICATE GLASS-CONTAINING MOLDING MATERIAL MIXTURES | US12065522 | 2006-09-01 | US20090095439A1 | 2009-04-16 | Reinhard Stotzel; Diether Koch; Antoni Gieniec; Jens Muller; Gunter Weicker; Hans-Jurgen Werner |
| The invention relates to a molding composition for producing casting molds for the foundry industry, comprising at least: a refractory mold material; a binder for curing the molding composition; a proportion of a borosilicate glass. The invention further relates to a process for producing a molding from the molding composition of the invention, the corresponding casting mold or the corresponding molding and also their use in metal casting. | ||||||
| 64 | Sandcasting pattern coating compositions containing graphite | US10944471 | 2004-09-17 | US07507284B2 | 2009-03-24 | Victor S. LaFay; Stephen L. Neltner |
| Sand casting is an old art. In this molding process sand is compacted around a pattern and the pattern is removed, leaving a mold cavity the shape of the pattern. Molten metal can then be poured into the cavity to form the object. To increase the life of the mold, and to make removal of the pattern easier, the pattern must be coated with a protective material. A pattern coating composition is disclosed wherein the composition is an emulsion including oil, water, graphite, a water dispersible amine, and a clay reactive with the amine to form an organophylic clay. | ||||||
| 65 | Use of new fast-setting mortars for preparing products by means of pouring in foundry earth moulds | US10589156 | 2005-02-08 | US20070163471A1 | 2007-07-19 | Umberto Costa; Roberto Cucitore |
| Described herein is the use of new cementitious mortars with a high degree of fluidity and short consolidation times in the production of cementitious products by means of pouring in foundry moulds. The mortars used contain water, a fast-setting cement, fluidifiers and/or superfluidifiers, setting regulators, and aggregates having a specific granulometric distribution. The aggregates are made up of two fractions with different grain size such that the ratio between the characteristic grain diameters of the two fractions is comprised between 2.2 and 3.2. The new mortars thus obtained have values of fluidity 2-3 times higher than those of mortars produced with traditional aggregates. The mortars thus produced are particularly suitable for filling, in a homogeneous way and without any application of vibration, foundry earth moulds; solidification in the moulds takes place in a short time and leads to the formation of products, including ones of a complex shape, with precise outlines and having good mechanical characteristics. | ||||||
| 66 | Mould parts of silicon nitride and method for producing such mould parts | US10520834 | 2003-08-13 | US20050118461A1 | 2005-06-02 | Espen Olsen; Arve Solheim |
| The present invention relates to silicon nitride mould parts, particularly crucibles for use in connection with directional solidification and pulling of silicon single crystals. The mould parts consist of Si3N4 having a total open porosity between 40 and 60% by volume and where more than 50% of the pores in the surface of the mould parts have a size which is larger than the means size of the Si3N4 particles. The invention further relates to a method for producing the silicon nitride mould parts. | ||||||
| 67 | Investment casting binders for making molds having high green strength and low fired strength | US09940816 | 2001-08-27 | US06770699B2 | 2004-08-03 | Ronald S. Doles; Gretchen L. Desch |
| Investment casting binders containing a mixture of colloidal silicas having average particle size diameters of 4, 8 and 13 nanometers yield molds having high green strength and low fired strength. | ||||||
| 68 | Molding sand appropriate for the fabrication of cores and molds | US09125904 | 1999-07-01 | US06598654B2 | 2003-07-29 | Jaime Prat Urreiztieta |
| The molding sand comprises hollow microspheres of aluminum silicate, preferably with an aluminum content between 15 and 45% by weight, a wall thickness between 3 and 10% of the particle diameter and a particle size between 10 and 350 &mgr;m. These sands are useful to manufacture low density cores with good “veining” and penetration characteristics, moreover maintaining the mechanical properties of the core obtained. These cores are useful in the manufacture of iron casting. | ||||||
| 69 | Sand casting foundry composition and method using shale as an anti-veining agent | US10290750 | 2002-11-08 | US20030101907A1 | 2003-06-05 | Richard K. Brown |
| A sand casting foundry composition reduces thermal defects that cause veining in metal parts cast from sand casting foundry shapes formed from the foundry composition. A plurality of foundry sand grains are mixed substantially uniformly with a plurality of shale particles, and a curable binder coats the sand grains and the shale particles to establish core and mold foundry shapes used to cast the metal part. Anti-veining capability occurs because the shale particles include mineral components which have an inherent characteristic of crystal structural collapse upon exposure to metallurgical temperatures, and the crystal structural collapse yields space which is consumed by thermal expansion of the sand grains in the foundry composition. This compensatory effect avoids the creation of mechanical forces and stresses within the foundry shape that cause cracks and fissures in the foundry shape that lead to veining. | ||||||
| 70 | Pottery plaster formulations for the manufacture of plaster molds | US09451576 | 1999-11-30 | US06398864B1 | 2002-06-04 | Andrzej A. Przybysz; Jeffrey F. Grussing; Salvatore C. Immordino |
| A plaster composition for making molds for reproduction by casting is disclosed. Calcium sulfate hemihydrate, potassium sulfate and potassium sodium tartrate are mixed together. The potassium sulfate and potassium sodium tartrate are in a ratio of from about 1:1 to about 10:1. Potassium sodium tartrate is present in an amount of from about 1 to about 10 pounds per ton of dry calcium sulfate hemihydrate, and the total of the potassium sulfate and potassium sodium tartrate is from about 2 to about 35 pounds per ton of calcium sulfate hemihydrate. Methods of making and using molds of this composition are also disclosed. | ||||||
| 71 | Aqueous polymer dispersions | US604664 | 1996-02-21 | US6080813A | 2000-06-27 | Kurt Wendel; Thomas Schwerzel; Guenter Hirsch |
| Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof. | ||||||
| 72 | Ceramic shell molds and cores for casting of reactive metals | US964350 | 1997-11-04 | US5944088A | 1999-08-31 | Roy C. Feagin |
| Mold coatings that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent. | ||||||
| 73 | Die for superplastic forming of titanium-based alloy | US819369 | 1997-03-17 | US5896784A | 1999-04-27 | Akira Kamiya; Katsuyoshi Naganuma; Makoto Kato |
| The present invention provides a die for superplastic forming of titanium-based alloy with high-workability, which is inexpensive and easy to handle, and has detailed shape-reproducibility and no reactivity with titanium-based alloy to be processed, and has excellent accordance with it in a thermal expansion coefficient. This invention relates to a die for superplastic forming of titanium-based alloy characterized by comprising quartz, cristobalite and calcium silicate. The above die for superplastic forming of titanium-based alloy is produced by kneading a mixed powder of quartz and cristobalite, together with a binder containing a plaster additive of less than 30 weight % based on the total amount with water, forming the mixture, drying the formed product and sintering it in the atmosphere to convert the plaster additive into calcium silicate. | ||||||
| 74 | Heat curable alumino-silicate binder systems and their use | US762670 | 1996-12-11 | US5743953A | 1998-04-28 | Helena Twardowska; John J. Cooper; Yuliy Yunovich |
| This invention relates to heat curable alumino-silicate binder systems comprising as three separate parts (1) a soluble source of silica, (2) a caustic solution of an alkali silicate, and (3) aluminum silicate, and an alcohol which may be incorporated into (1), (2), or both. The binder systems are mixed with an aggregate to form a mix. The resulting mix is shaped and heated at an elevated temperature to form a cured shape, particularly foundry cores and molds. Heat is applied by warm air, baking in an oven, microwave, or preferably by hot-box equipment. | ||||||
| 75 | Ceramic cores for casting of reactive metals | US456323 | 1995-06-01 | US5712435A | 1998-01-27 | Roy C. Feagin |
| Cores that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent. | ||||||
| 76 | Aqueous polymer dispersions | US696189 | 1996-08-13 | US5705563A | 1998-01-06 | Kurt Wendel; Thomas Schwerzel; Guenter Hirsch |
| Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof. | ||||||
| 77 | Ceramic shell compositions for casting of reactive metals | US7883 | 1987-01-28 | US5535811A | 1996-07-16 | Roy C. Feagin |
| Mold coatings that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent. | ||||||
| 78 | Heat curable foundry binder systems | US217919 | 1994-03-25 | US5474606A | 1995-12-12 | Helena J. Twardowska; Heimo J. Langer |
| This invention relates to heat curable foundry binder systems comprising as separate components (a) a caustic solution of an alkali silicate and (b) hydrated aluminum silicate. The solution is mixed with sand to form a foundry mix. The resulting foundry mix is shaped and heated at an elevated temperature to form a cured foundry shape. Heat is applied by warm air, baking in an oven, microwave, or preferably from hot-box equipment. | ||||||
| 79 | Process for preparing a ceramic wick | US156359 | 1993-11-23 | US5458837A | 1995-10-17 | Peter A. Roberts; Kevin G. Hayes |
| A process for preparing a porous ceramic body in which a green body containing at least 60 weight percent of ceramic material, at least about 25 weight percent of water, and from 5 to 40 weight percent of gluten is formed. The green body is dried until it contains less than about 0.5 weight percent, and it is then heated to a temperature of from 1,100 to 3,200 degrees Fahrenheit until substantially all of the gluten has been removed. | ||||||
| 80 | Mold with film of 0-5 atom % hydrogen and molding method utilizing same | US999124 | 1992-12-31 | US5382274A | 1995-01-17 | Kiyoshi Yamamoto; Keiji Hirabayashi; Noriko Kurihara; Yasushi Taniguchi; Keiko Ikoma |
| A mold for use for press-molding an optical element, in which a molding surface of a mold base material is coated with a hard carbon film containing 0-5 atom% of hydrogen. It has a spin density of 1.times.10.sup.18 spin/cm.sup.3 or less and a film density of at least 1.5 g/cm.sup.3. | ||||||
QQ群二维码
意见反馈
意见反馈