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6662855 |
Molding device and molding method or sand mold
A sand hopper (28) is provided at its lower position (40) with a plurality of nozzles (42) and a plurality of squeeze feet (46), the pressure of which is controlled, and which are located adjacent...
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6253827 |
Method of compressing molding sand using independently controlled gas guiding pipes
A method of compacting molding sand by using separated and independently controlled gas guiding pipes that are arranged over horizontally spaced locations of the entire surface of the molding sand....
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5996678 |
Apparatus for making mold
The apparatus comprises a table (5), on which a pattern plate (6) is attached, a flask (7), the bottom surface of which can be fitted to the pattern plate (6), a filling frame (30), the bottom...
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5957189 |
Apparatus and method for sequentially feeding quantities of sand into a mold space and subjecting the space to evacuation and then pressure increase after each feed
A first quantity of all the molding sand necessary to produce a mold is fed in the mold space, the first quantity being one of at least two parts divided from the total molding sand. The mold space...
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5794681 |
Molding machine
The machine includes a lifter table for lifting a pattern plate and flask which hold molding sand and a pre-compacting member and a pressing member disposed above the lifter table for horizontal...
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5791396 |
Apparatus and method for producing molds
Molding sand (S) is put in a mold space defined by a pattern plate (2), having a pattern (2A) on it, and a flask (3). The apparatus includes a thin-plate body (9) and/or a rod (11) to be inserted...
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5662155 |
Device and method for placing a pouring basin on a sand mold
A pouring basin (1) or funnel made of a mold material, such as sand is molded, and then positioned on a sand casting mold (2). In order to increase the usable casting time in the casting of a...
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5601777 |
Process for compressing granular material in a molding box
A process for compacting foundry molding material is proposed, the molding material being introduced into a molding device with a pattern plate with a pattern frame and a molding and filing frame...
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5558148 |
Method of producing molds
Molding sand (5) is fed into a space defined by a pattern plate (2) and a flask (3) mounted on the pattern plate (2), and the space is enclosed at the upper part of the flask (3) by a cover (6)....
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5547015 |
Method and apparatus for manufacturing moulds or mould parts by blowing particulate material into a mould chamber
The blowing-in of the sand into the mould is continued while the pressure in the mould chamber increases through a maximum mould pressure and the blowing-in is terminated at a predetermined time...
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5355929 |
Method of and apparatus for making casting moulds
A mould chamber including at least one pressing plate is filled by blowing mould sand in through a blowing-in tube ascending at high speed, in which at least some of the blowing-in apertures are...
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5348070 |
Process for the compression of molding sand for casting molds
The invention relates to a process for the compression of molding sand in casting molds having a pattern plate with a pattern arranged therein. The molding sand is introduced loosely into the...
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5332025 |
Method of and apparatus for producing a series of casting molds or mold parts
In producing casting molds or mold parts by compacting mold sand in a molding chamber between two pattern plates, the volume of the molding chamber is measured and/or computed, such as by using...
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5161596 |
Method for compressing granular molding materials
Foundry moldings are manufactured in an economic manner without increasing cycle time comprises a 3-stage method including the steps of feeding the molding material by means of compressed air into...
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5161603 |
Method for production of single-use foundry molds and apparatus for realization thereof
A molding chamber (7) accommodating pattern plates (24, 25) is supplied by a steam of air with sand mixture delivered in a direction parallel to the pattern plates (24, 25). After a time delay...
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5148851 |
Method of charging sand and molding machine utilizing thereof
Sand is charged into a space in a mold flask by a sand feed nozzle provided on the lower end part of a blow head inserted into a sand charge port formed in the top wall of the mold flask. The blow...
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5137091 |
Process of producing molded body from green molding sand
Green sand is packed as molding sand into a compression mold and the green sand is precompacted in the mold using a hydraulic press and thereafter is finally compacted after the precompaction...
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4947923 |
Method and apparatus for evaporative pattern casting
The method and apparatus are based on the use of a casting process in which expendable patterns are made of a low density material, then evaporated by molten metal as the metal advances into the...
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4915159 |
Method and apparatus for compacting foundry mold making material about a foundry mold pattern
To permit close matching of compaction pressure being applied to foundry mold making material, such as foundry sand, to the shape of a mold pattern (2) in a pattern box (3, 4), individual fluid...
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4750540 |
Method of, and apparatus for, manufacturing foundry molds, especially for compacting foundry molding material
Foundry molding material is poured or pneumatically infed into a mold frame arrangement containing at least one pattern, a molding frame and a filling frame. Subsequently, the foundry molding...
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4724888 |
Method and apparatus for the production of flaskless foundry molds
A method and apparatus for producing flaskless foundry molds made up of copes and drags of wet casting foundry sand, which is blasted into a cavity to form the mold with the use of vacuum. The sand...
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4390056 |
Method and apparatus for producing one or more hollow sand cores suitable for casting moulds
An apparatus and method for producing one or more hollow sand cores suitable for casting moulds using a bipartite core box defining a mould cavity into which sand and a catalyst or a curing agent...
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4313486 |
Sand mold-producing method and apparatus
A sand mold-producing apparatus having a sand blower for vertically supplying sand with the help of a first flow of a pressurized air into a molding cavity in which a match plate carrying thereon a...
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4182395 |
Method and device for the production of casting molds out of sand containing a binder
Casting molds from binder-containing molding sand manufactured by improved vacuum injection, achieved by employing an injection grate with injection slots of a minimum width of at least 50 mm, a...
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4144925 |
Method and apparatus for the production of foundry sand molds
A dosed amount of molding material is placed in a vessel arranged at a given distance from a pattern device from which a mold is to be formed, and a pressurized force is applied against the molding...
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4108234 |
Method and machine for producing sand molds
A machine for producing sand molds by a single operator, wherein the flask assembly, including the cope, drag and matchplate remain in the machine at all times, and the method utilized therein.
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3858639 |
APPARATUS FOR MAKING SAND MOLDS
An apparatus for making sand molds is disclosed, having a plurality of equally spaced stations, a pair of first and second mold chambers, with the first mold chamber being stationarily mounted and...
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3807483 |
METHODS AND APPARATUS FOR PRODUCING SAND MOLDS
The provision of sand casting molds by means of at least one mold frame, at least one pattern plate, at least one press die movable vertically relative to the pattern plate, a mold-sand chamber...
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3556196 |
METHOD FOR AUTOMATIC PRODUCTION AND TRANSPORTATION OF FLASKLESS SAND MOULDS IN METAL CASTING
In a method for producing and conveying horizontally divided flaskless sand molds, the molding sand is pneumatically introduced into mold frame cavities formed above and below a laterally moving...
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3242539 |
Moulds and a method of preparing same
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3168764 |
Foundry molding machine and method of molding
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3089207 |
Blow-squeeze molding machine
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2986785 |
Blow and squeeze molding method
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2985931 |
Method of forming foundry molds
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2879564 |
Oscillatory molding machine
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2866242 |
Foundry molding process
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2859498 |
Automatic method and apparatus for making castings
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2842817 |
Method and means for the mechanical preparation of molds from compressed granular material
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2792601 |
Method and apparatus for charging and jolting for the purpose of pre-compacting granular materials
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