Class / Patent application number | Description | Number of patent applications / Date published |
164016000 | Chemically reactive gas hardening of forming material | 13 |
20090199992 | SULFUR DIOXIDE-CURED EPOXY ACRYLATE FOUNDRY BINDER SYSTEM - The present invention provides an epoxy acrylate foundry binder composition having an epoxy resin component (Part 1) and an acrylate component (Part 2) containing about 1% to less than about 6% by weight of a borate ester. The epoxy acrylate binders of the present invention are useful in making foundry cores and molds in that the addition of the borate ester increases hot strength of the binder system. Also provided is a cold-box process for making sand cores and molds using the epoxy acrylate binders cured by sulfur dioxide vapor. | 08-13-2009 |
20100212854 | HOLLOW SAND CORES TO REDUCE GAS DEFECTS IN CASTINGS - An exemplary method for forming a sand core includes forming a core insert; forming a sand core precursor around the core insert; and creating at least one passage within the sand core precursor by removing or otherwise transforming a portion of the core insert, wherein the at least one passage includes at least one exit point. The sand core may then be utilized in a casting mold assembly to form a cast part. | 08-26-2010 |
20140190648 | METHOD FOR CURING COLD-BOX FOUNDRY SHAPE WITH GASEOUS CATALYST - A “cold box” process for forming a foundry shape by curing a binder in a foundry mix operates by sequentially introducing a first vaporous curing catalyst to a pattern containing the formed foundry mix, followed by introducing at least a second vaporous curing catalyst. By arranging the amounts of the respective vaporous curing catalysts and the contact times, as well as by using the less active vaporous curing catalyst first, the total amount of curing catalyst used to effect the cure is reduced. Carrier gas may be used with the respective vaporous curing catalysts. Typically, the vaporous curing catalysts are tertiary amines having between three and six carbon atoms. | 07-10-2014 |
20140262100 | FORMING A MOLD FOR STEEL CASTING - A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner. | 09-18-2014 |
20140262101 | FORMING A MOLD FOR STEEL CASTING - A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner. | 09-18-2014 |
20140262102 | FORMING A MOLD FOR STEEL CASTING - A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner. | 09-18-2014 |
20140262103 | FORMING A MOLD FOR STEEL CASTING - A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner. | 09-18-2014 |
20140262104 | FORMING A MOLD FOR STEEL CASTING - A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner. | 09-18-2014 |
20150129155 | Method for producing molds and cores for metal casting and molds and cores produced according to this method - The invention relates to a method for producing casting molds and cores, in which a foundry base material comprising at least one refractory material and a binder curable by CO | 05-14-2015 |
20150315083 | MOLDING MATERIAL MIXTURES CONTAINING METAL OXIDES OF ALUMINUM AND ZIRCONIUM IN PARTICULATE FORM - The invention relates to mold material mixtures containing an oxide of aluminum and an oxide of zirconium as particulate mixed metal oxide, in combination with refractory mold base materials and a water glass-based binder system. The mold material mixtures, also in the form of multicomponent systems, are used for the production of molds and cores for the foundry industry. | 11-05-2015 |
20160008873 | DEVICE AND METHOD FOR HARDENING FOUNDRY CORES | 01-14-2016 |
20160136724 | LITHIUM-CONTAINING MOLDING MATERIAL MIXTURE BASED ON AN INORGANIC BINDER FOR PRODUCING MOLDS AND CORES FOR METAL CASTING - The invention relates to lithium-containing molding material mixtures comprising a refractory main molding material, an inorganic binder, and amorphous silicon dioxide as an additive in the production of molds and cores for metal casting. The invention further relates to a method for producing molds and cores using the molding material mixtures and to molds and cores produced according to the method. | 05-19-2016 |
20160250680 | Method for Producing Lost Cores or Molded Parts for the Production of Cast Parts | 09-01-2016 |