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4063942 |
Metal flake product suited for the production of metal powder for powder metallurgical purposes, and a process for manufacturing the product
A steel flake product, suitable for being crushed or ground to form a steel powder for powder metallurgical purposes, consists of a plurality of relatively thin, brittle and easily crushed,...
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4055216 |
Vacuum casting machine
A vacuum casting machine has a rotary table obtaining motion from a self-contained drive and accommodating chambers with casting molds. In turning, the rotary table causes each of the chambers to...
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4043381 |
Self-destructive core mold materials for metal alloys
In the casting of metal alloys to form hollow articles, a mold of a desired shape containing a core material fabricated to a desired configuration from a silicon yttrium or silicon lanthanide...
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4034793 |
Process for casting a plate grid for a lead-acid storage battery
In a process for casting a plate grid for a lead-acid storage battery comprising the steps of preparing a casting die assembly including two interengagable die halves between which is formed a...
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4027719 |
Argon bath induction casting system
A system for centrifugal casting of induction melted metal includes a crucible and a porous mold secured to a casting arm. The casting arm is secured to a hollow rotatable shaft which includes two...
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4002196 |
Method for forming an equalized layer to a shaping surface of a mold
This invention relates to a method for molding and forming an equalized layer onto a shaping surface of a mold, and also relates to a method for forming the layer onto the shaping surface of the...
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3895672 |
Integrated furnace method and apparatus for the continuous production of individual castings
An apparatus and method for forming and casting metal alloys on a continuous basis in an integrated furnace system are disclosed. A highly flexible manipulator and a plurality of solidification...
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3862656 |
METHOD AND APPARATUS FOR VACUUM CASTING OF METAL
A method and apparatus for vacuum casting metal includes a furnace for forming a bath of molten metal in situ. A vertical sprue has its lower end immersed in the bath of molten metal in the...
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3861449 |
METHOD OF CASTING METALLIC OBJECTS
The disclosure relates to a method of casting objects having small, thin and narrow sections from alloys or other metal-containing materials to produce completed objects properly filled with...
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3825058 |
MOLD PREPARED BY VACUUM SEALED MOLDING PROCESS
A mold prepared by a vacuum sealed molding process in which, in order to prevent breakdown of the mold during pouring of a molten metal, a tubular member forming a passage serving as a...
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3815659 |
PROCESS FOR CASTING MOLTEN METAL
It is herein provided to mold castings of articles, such as battery grids, in accordance with a technique for permitting the molten metal to have a higher lead content, by raising the temperature...
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3780787 |
METHOD OF VACUUM INVESTMENT CASTING
A method of making castings according to the wax elimination method, comprising the steps of mounting a wax pattern on a holding pin member, placing the pattern in a substantially centered position...
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3705615 |
METAL CASTING PROCESSES WITH VACUUM AND PRESSURE
A gas permeable mold, preferably an investment mold, is cast under a vacuum. The pressure on the molten metal exposed through the opening of the mold is raised to atmospheric pressure after...
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3698468 |
INVESTMENT CASTING APPARATUS
Investment, or lost wax, casting machine including means for forming an investment mold, melting a metal and pouring it into the mold, condensing steam to produce a partial vacuum, and applying the...
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3696859 |
PRODUCTION OF LARGE STEEL INGOTS WITH CONSUMABLE VACUUM ARC HOT TOPS
A method is provided for preventing shrinkage cavities and voids in steel ingots by the steps of forming a body of degassed molten steel in an ingot mold and continuously supplying molten steel by...
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3688831 |
KILLED STEEL AND METHOD OF MAKING SAME
A process for producing very large killed steel forging blanks and the product thereby produced. The process consists of teeming a melt of killed steel into an ingot mold containing a sinkhead...
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3677332 |
VACUUM CASTING PROCESS
The disclosure relates to a process and apparatus for casting metals by controlling the relative pressure of the space above the molten metal body to be cast with respect to the pressure within the...
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3672429 |
METHOD FOR THE CENTRIFUGAL CASTING OF METAL IN A ROTATING HORIZONTAL SHELL
A process for centrifugal casting of metal components in a mold revolving around a vertical axis by supplying liquid metal into a cavity in the mold and rotating the mold to cause the liquid metal...
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3635791 |
PRESSURE POURING IN A VACUUM ENVIRONMENT
An apparatus for melting and casting high-temperature, heat-resistant alloys in a vacuum environment. The apparatus includes an induction-heated furnace having an upwardly extending pouring spout...
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3633649 |
DECARBURIZATION OF FERROUS MATERIAL UNDER LOW PRESSURE AT ELEVATED TEMPERATURE
Continuous metallurgical treatment, especially for decarburization treatment carried out in vacuum. Successive vacuum chambers for heat treatment at various temperatures and pressures have...
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3621903 |
METHOD OF BOTTOM CASTING STEEL INGOTS USING LOW VACUUM OF FROM 610 TO 310 MM. HG ABSOLUTE
Molten steel is bottom poured into a mold, the internal gas pressure of which is maintained within the range of 610-310 mm. Hg absolute for a major part of the casting period. When the molten steel...
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3616841 |
METHOD OF MAKING AN INORGANIC RETICULATED FOAM STRUCTURE
The production of foam material, e.g., a reticulated ceramic, metal or cermet material, is carried out by using commercially available conventional foam, such as reticulated polyurethane, having...
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3608617 |
ART OF MAKING PRECISION CASTINGS
A method for casting in a founding flask in which molten metal is continuously poured below the surface of the previously added molten metal through a heated funnel which extends to the lower...
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3581803 |
METHOD OF REDUCING CENTER POROSITY IN INGOT CASTING
A method of reducing porosity in the center of ingots promoting a uniform temperature gradient, and decreasing alloy segregation by vacuum stream degassing into an ingot mold and simultaneously gas...
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3554268 |
VACUUM MELTING FURNACE AND METHOD
Vacuum metallurgical refining plant having adjoining vacuum chambers with intermediate valve for selectively interconnecting or isolating the chambers with respect to each other to permit...
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3552479 |
CASTING PROCESS INVOLVING COOLING OF A SHELL MOLD PRIOR TO CASTING METAL THEREIN
Method of precision casting of high temperature, nickel-base alloys in ceramic shell molds wherein, immediately prior to casting, a preheated shell mold is permitted to cool to provide a condition...
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3536125 |
MULTIPLE TUNDISH SYSTEM FOR METAL REFINING PLANT
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3523766 |
PRODUCTION OF CELLULAR METALS
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3517728 |
APPARATUS FOR MAKING CASTINGS
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3506061 |
APPARATUS FOR VACUUM-CASTING A PLURALITY OF METAL PARTS IN A SINGLE MOLD
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3476170 |
CASTING METHOD WITH LASER BEAM MELTING OF LEVITATED MASS
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3465812 |
HEATER BAR SYSTEM
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3460608 |
VACUUM INDUCTION CASTING PLANT WITHOUT CRUCIBLE
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3435885 |
FLASK FOR MAKING PRECISION CASTINGS
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3434527 |
METHOD FOR ULTRA-HIGH PURITY PRECISION CASTING
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3430679 |
METHOD OF VACUUM CASTING EMPLOYING A HIGH TEMPERATURE SEALING COMPOSITION
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3417463 |
Method of producing steel for sheets to be enamelled by the single-coat method
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3393836 |
Metal dispensing apparatus
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3364976 |
Method of casting employing self-generated vacuum
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3344840 |
Methods and apparatus for producing metal ingots
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3305901 |
Vacuum casting method of multiple ingot casting
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3306731 |
Method of degassing steel
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3283377 |
Turbine wheel manufacturing method
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3279006 |
Method of preparing composite castings
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3271828 |
Consumable electrode production of metal ingots
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3264697 |
Method of forming composite metal bodies
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3241200 |
Precision mold and method of fabrication
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3237253 |
Method of making screen by casting
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3226224 |
Process for vacuum degasification of metal
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3225687 |
Method of making stereotype materices and backing sheet for use therein
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