Class / Patent application number | Description | Number of patent applications / Date published |
164019000 | By spraying or slinging material against shaping surface | 7 |
20090008055 | METHOD FOR MANUFACTURING MOLD - A method for manufacturing a mold, including steps of (a) expanding a powder mixture containing a water-soluble inorganic salt powder and a water-soluble organic polymer powder in a plane on a table and then selectively spraying a spray liquid containing at least one selected from a water-miscible organic solvent and water through a nozzle on this powder mixture layer to make a bonding strength among particles of the powder mixture in a sprayed region higher than that among particles of the powder mixture in an unsprayed region, (b) further expanding the powder mixture on the powder mixture layer after spraying and then selectively spraying the spray liquid through the nozzle on this powder mixture layer, (c) repeatedly conducting the step (b) over several times to form a mold shaped by the sprayed regions, and (d) taking out the mold. | 01-08-2009 |
164020000 | Particulate solid material | 6 |
20080277089 | Method and Device for Producing Moulds or Cores, in Particular for Foundry Purposes - To produce moulds or cores for foundry purposes from a mixture (M) of moulding material or sand and a binder, the mixture (M) is shot using a shooting unit ( | 11-13-2008 |
20150298203 | MOLDING METHOD, EQUIPMENT FOR CARRYING OUT SAID METHOD AND MOLD OBTAINED BY MEANS OF SAID METHOD - A molding method, equipment for carrying out said method and mold obtained by means of said method are disclosed. The method comprises obtaining at least two semi-molds ( | 10-22-2015 |
164021000 | Resin containing | 2 |
20110042028 | BINDER COMPOSITION AMD METHOD OF FORMING FOUNDRY SAND CORES AND MOLDS - A cost-effective starch/water-based binder composition and related method for forming silica sand cores and molds for foundries, wherein the sand grains are pre-coated with starch having additives making the coated sand effective for blowing said cores and molds. One or more additives are included with the starch; preferably sodium tripolyphosphate and -silicon or Silres BS16. The preferred starch is a tapioca starch. The binder of the invention is highly competitive due to its low cost and effectiveness for forming silica-sand cores and molds, being particularly effective for use in aluminum foundries for the automotive industry. | 02-24-2011 |
20110186257 | METHOD FOR MANUFACTURING MOLD - A method for manufacturing a mold, including steps of (a) expanding a powder mixture containing a water-soluble inorganic salt powder and a water-soluble organic polymer powder in a plane on a table and then selectively spraying a spray liquid containing at least one selected from a water-miscible organic solvent and water through a nozzle on this powder mixture layer to make a bonding strength among particles of the powder mixture in a sprayed region higher than that among particles of the powder mixture in an unsprayed region, (b) further expanding the powder mixture on the powder mixture layer after spraying and then selectively spraying the spray liquid through the nozzle on this powder mixture layer, (c) repeatedly conducting the step (b) over several times to form a mold shaped by the sprayed regions, and (d) taking out the mold. | 08-04-2011 |
164022000 | Employing compressed air as ram or piston to force sand against shaping surface | 2 |
20110024071 | Method of producing sand mold - A method of producing a sand mold, comprising: after defining a mold space at least by a pattern plate, a flask, and a squeeze means, and after blow-charging molding sand held in a sand blowing device located above the mold space into the mold space by ejecting a first compressed air near sand ejecting ports of the sand blowing device thereby fluidizing the molding sand near the sand ejecting ports, while supplying a second compressed air to a surface of the molding sand held in the sand blowing device, moving the squeeze means toward the pattern plate, where in the pressure of the first compressed air and the period of time for supplying the first compressed air are adjusted to produce a good sand mold. To determine the period of time for ejecting the first compressed air, the distance of the movement of the squeeze feet toward the pattern plate is measured when the squeeze of the molding sand in the mold space is completed, and the difference between the measured distance and a target distance is calculated. The period is adjusted to be a shorter or lengthened one based on the result of the calculation. | 02-03-2011 |
20150144283 | CORE-MOLDING DEVICE, AND CORE-MOLDING METHOD - A core molding machine which can be made smaller while having a favorable core sand filling property is provided. The machine comprises a core box having a pair of laterally separable dies and a sand filling device, having a blow head disposed under the core box, for filling the core box with core sand directed upward from the blow head; the blow head having a sand blow chamber for guiding the core sand to the core box while being connected to the core box and a sand storage chamber communicating with the sand blow chamber; the sand filling device having a compressed air supply unit for supplying a compressed air for blowing the core sand into the core box and an aeration air supply unit for supplying an aeration air for floating and fluidizing the core sand within the sand blow chamber. | 05-28-2015 |