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8021599 |
Method and installation for producing steel products with optimum surface quality
A method for producing steel products (1) with optimum surface quality wherein the molten steel (1b) is produced in a process route (10, 100; 12; 13) that is selected according to a desired final...
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7073557 |
Method of drying a sand mold using a vacuum
A method of drying a sand mold mixture containing moisture includes restraining the sand mold mixture and exposing the sand mold mixture to a vacuum. The vacuum flashes off the moisture within the...
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6923240 |
Process and apparatus for producing casting cores
A method for producing sand cores for foundry, comprising the operations of: defining a molding cavity; blowing in a mixture of sand and hydrated binder into said molding cavity so as to produce a...
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6668904 |
Method and apparatus for producing casting moulds or mould parts
In a mould forming machine comprising a moulding chamber, a movable squeeze plate and a pattern, the filling of selected parts of the pattern with compressible mould material is improved by...
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6634410 |
Mold apparatus and method
A mold apparatus and method for creating designs on the interior of molds includes a resilient form with an exterior and an interior, with a design formed on the exterior. A rigid support member is...
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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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5881794 |
Apparatus and method for producing shell-like molds
An apparatus to produce a shell-like mold by vacuum sucking molding sand into a shell-like cavity defined by a cope and a drag is disclosed. The apparatus includes a drag and a cope mounted on the...
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5333669 |
Coreshooters for self-setting process with vacuum system
A coreshooter includes a table on which a corebox for molding articles is positioned, and a blowing cartridge supplying sand into the corebox. The corebox is housed in a bell which forms about the...
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5318093 |
Method and apparatus for investment casting
In an improved method and apparatus for investment casting, a pattern (31) is mounted on a sprue base (19) of an spider gasket (12) that is secured to one end of a standard investment flask (11). A...
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5219014 |
Device and method for fabricating foundry molds from granular material
The invention concerns a device and method for continuous fabricating of foundry molds from granular material.The device consists of a frame (10) with lights (11) supporting through swivels (31)...
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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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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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5062466 |
Countergravity casting apparatus and method
In vacuum countergravity casting a melt into a mold sealingly engaged to a vacuum container by an elastomeric sealing gasket, the sealing gasket is isolated from the heat of an underlying source of...
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4984620 |
Apparatus for making molds for making metal castings
The apparatus comprises two containers, which are adapted to be connected to a vacuum pump. The upper container contains a rotationally symmetrical guiding body. A distributing space is defined by...
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4958674 |
Full mold casting process and device
A full mold casting process in which a complete, positive model made of a thermally decomposable material is placed in a molding box and filled with sand; the sand is hardened by tamping it in....
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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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4791974 |
Method and an apparatus for producing shaped bodies from particulate material
In a method of operating an apparatus with a mold chamber (8) being supplied with fluidized mold sand (2) from a supply chamber (1) under air pressure applied through suitable air channels (3), and...
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4739820 |
Apparatus for simultaneous making of matching mould parts with a horizontal parting face
The apparatus includes a shared pattern carrier (1), to which an upper and a lower half pattern (2, 3) are secured. Moulding chambers (4, 5) are provided above and below the pattern carrier (1),...
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4739821 |
Apparatus for making mould parts with a horizontal parting face
A apparatus for making mould parts with a horizontal parting face consists of a container (1) in which is kept moulding material (2), preferably moulding sand, a moulding chamber (3) which may be...
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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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4653568 |
Foundry process and apparatus, including mixing investment composition under vacuum
A foundry process and associated apparatus for providing mixing of water, an additive, and a casting (investment) for the automated powder, which once mixed, are to be delivered to molds to form...
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4620584 |
Green sand mold filling system
A green sand mold filling system is formed of an air chamber box having a cover plate which supports a pattern. Air passageway holes, which communicate with the air chamber, extend through the...
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4586555 |
Mold making plant
A mold making machine the production of flaskless molds is made up of a sand supply container, with a blowing and squeezing grid at its lower, that is able to be moved vertically, a hollow pattern...
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4567932 |
Vacuum moulding flask
In a vacuum moulding flask, air is removed by suction from the flask, which has been filled with moulding sand, in order to consolidate the mould. To ensure satisfactory distribution of the vacuum,...
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4566521 |
Moulding apparatus for making gas hardened sand mould
A hopper for providing moulding sand having an opened top and a bottom member having through holes for discharging the sand is positioned spaced apart at a suitable distance horizontally from a...
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4539168 |
Device and process for making thin-walled wax models for lost-wax casting
In order to remove a thin-walled wax model adhering to the walls of a first core piece and a second core piece, after solidifying, from a multi-part device for making thin-walled wax models,...
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4538665 |
Molding box apparatus
A molding box apparatus having a horizontal tubular body and a pair of pattern plates having pattern surfaces complementary to the mold chambers to be formed fitting in the tubular body, at least...
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4531565 |
Gas hardening type molding machine
Disclosed is a gas hardening type molding machine wherein a vertical type molding box is disposed under a molding sand hopper having an upper part opened and a bottom part provided with a 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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4286937 |
Production of sand moulds
This provides a way of producing a sand mould which does not require heavy echanical presses or violent vibration to ensure sand properly fills tight patterns in a mould. Sand is put into a buffer...
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4231415 |
Apparatus for the production of foundry sand molds
A dosed amount of molding sand 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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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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4154287 |
Apparatus for manufacturing fusible patterns
The present invention relates to equipment used for investment casting and may find application in various fields of engineering to enable automation of the process of manufacturing easily fusible...
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4129165 |
Preparation of foundry moulds and cores
To compact a sand-binder mixture in a mould or core box and subsequently apply a hardening gas to the mixture, I apply to the open top of the box a fluid-pervious diaphragm backed by an impervious...
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4126176 |
Foundry molding machine for box molds
The molding machine has injection apparatus which operates with compressed air for filling a molding box with molding sand and pre-compacting the sand. Vents for escape of spent air from the...
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4103733 |
Manufacture of foundry cores and moulds
A method and apparatus for preparing foundry moulds or cores from a cold-setting sand based foundry mixture. The foundry mixture is introduced to a mould or core box and during setting of the...
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4103729 |
Apparatus and process for catalytic gassing in the manufacture of foundry cores and molds, and the like
A shaped mass of particulate material such as foundry sand, admixed with a polymerizable binder, is instantly completely hardened by contact of gas catalyst therewith. The preferred method and...
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4068703 |
Apparatus for catalytic gassing in the manufacture of foundry cores and molds
A shaped mass of particulate material such as foundry sand, admixed with a polymerizable binder, is instantly completely hardened by contact of gas catalyst therewith. The preferred method and...
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4068704 |
Cavityless casting mold
A casting mold filled with free-flowing particulate matter such as sand, in which there is imbedded a vaporizable pattern of foam plastic conforming to the shape of the desired casting, has at...
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4064926 |
Sand molding apparatus with means for recirculating catalyst
Particulate material, hereinafter called sand, is used in a sand article, such as a mold article, for foundry purposes such as a green sand mold and sand core consisting of sand and a binder and is...
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4036283 |
Rail conveyor for foundry molding boxes
An improvement in a rail conveyor apparatus. The improvement is composed of a plurality of rail conveyor trucks coupled together and movably supported on a track with at least one foundry molding...
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3970137 |
Apparatus for producing and transferring casting moulds
An apparatus for producing and transferring casting moulds utilizing binderless sand subjected to a reduced pressure. The apparatus is comprised of a travelling gripper which is arranged to be...
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3760865 |
APPARATUS FOR THE FABRICATION OF MOLD LININGS SUCH AS HOT TOP SECTIONS FOR INGOT MOLDS
An apparatus for the fabrication of mold linings such as hot tops and hot top sections for ingot-molds and similar lining elements, comprising means for conveying a slurry by difference of pressure...
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3744549 |
APPARATUS FOR AUTOMATIC PRODUCTION AND TRANSPORTATION OF FLASKLESS SAND MOULDS IN METAL CASTING
In a machine for producing and conveying horizontally divided flaskless sand molds, two mold frame cavities are formed above and below a match plate having a pattern on both sides and being movable...
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3678989 |
APPARATUS FOR MAKING CASTINGS
An apparatus for making castings. A body of granular material is confined in a container and a stream of gaseous fluid is introduced into the bottom of the container to impart to the granular...
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3645320 |
APPARATUS FOR VACUUM FORMING HOT TOP BOTTOM RINGS
The method and apparatus for automatically forming a hot top bottom ring from a slurry containing a major portion of granular refractory material, minor portions of inorganic fibrous material and...
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3602287 |
APPARATUS FOR FORMING A MEMBER FROM A SLURRY OF MATERIAL
An improved machine or apparatus for forming member from a slurry of refractory material includes a pair of mold sections which cooperate to form a cavity. A flexible diaphragm extends around the...
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3581802 |
METHOD FOR MAKING CASTINGS
A method and apparatus for making castings. A body of granular material is confined in a container and a stream of gaseous fluid is introduced into the bottom of the container to impart to the...
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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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