Matches 1 - 50 out of 185 1 2 3 4 >


Match Document Document Title
8082975 Apparatus and method for producing casting mold  
To provide a casting mold manufacturing apparatus using steam heating. The apparatus includes a forming die having a cavity, a resin-coated sand supply section for supplying a resin-coated sand...
7913742 Integral blow tube and tamping pin  
An apparatus for the forming of sand cores adapted to convey sand, tamp a sand core, and militate against an undesirable exposure of uncured sand to catalyst gases, while providing a non-tortuous...
7784524 Apparatus and method for producing casting mold  
An apparatus and a method for producing a casting mold are provided, according to which the casting mold having a complex shape can be obtained with stable quality. The apparatus comprises a mold...
7723401 Process for preparing erosion resistant foundry shapes with an epoxy-acrylate cold-box binder  
This invention relates to a process for making foundry shapes (e.g. cores and molds) using epoxy-acrylate cold-box binders containing an oxidizing agent and elevated levels of an organofunctional...
7617861 Hardening of inorganic foundry cores and molds  
A foundry core or mold comprised of sand admixed with an inorganic binder is hardened by passing a treatment gas through a first heater and heating it therein to a relatively low temperature and,...
7441583 Sand-forming apparatus  
A sand-forming apparatus (10) comprising a sand magazine (12), a manifold (14), a core box (16) defining a cavity (18), a clamp table (20), and a blow tube assembly (22). The apparatus (10) is...
7129283 Binders containing an epoxy resin, an ester of a fatty acid, and a fluorinated acid  
This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an ester of a fatty acid; (c) a fluorinated...
7081487 Cold-box binders containing an epoxy resin and ester of a fatty acid  
This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an ester of a fatty acid; (c) an effective...
7036552 Method and device for hardening foundry cores  
The invention relates to a method for hardening foundry cores from sand-containing molding materials. The core, for the purpose of hardening it, is subjected to a catalyst vapor/gas mixture in a...
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...
6772820 Polyurethane based binder system for the manufacture of foundry cores and molds  
A cold-box process for preparing a foundry shape, e.g. mold or core, that uses a binder comprising a phenolic resin component and an isocyanate component, wherein the phenolic resin component...
6684936 Erosion-resistant cold-box foundry binder systems  
This invention relates to erosion resistant foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) a...
6662854 Cold-box foundry binder systems having improved shakeout  
This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an aliphatic epoxy resin; (b) a multifunctional...
6604567 Free radically cured cold-box binders containing an alkyl silicate  
This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) an acrylate; (c) an alkyl...
6598654 Molding sand appropriate for the fabrication of cores and molds  
The molding sand comprises hollow microspheres of aluminum silicate, preferably with an aluminum content between 15 and 45% by weight, a wall thickness between 3 and 10% of the particle diameter...
6559203 Foundry binder systems containing an alkyl resorcinol and their use  
This invention relates to an organic foundry binder containing an alkyl resorcinol, or preferably a readily available mixture of alkyl resorcinols, and derivatives thereof. Preferably, the organic...
6554051 Phenolic resin and binding agent for producing moulds and cores according to the phenolic resin-polyurethane method  
A method of preparing foundry shapes, e.g. molds and cores, by mixing a foundry aggregate with a foundry binder, shaping the mixture in a pattern, curing the mixture, and removing the mixture from...
6520244 Method and apparatus for curing foundry cores  
An apparatus for curing foundry cores 100 is provided, including a first curing agent supply 110 passing through foundry core 145 primarily through first directional plane 130 and a secondary...
6505671 Method for producing a sand core  
A method for producing a sand core includes the following steps: (a) providing a casting mold having a mold cavity, the casting mold including at least one first conduit and at least one second...
6037389 Amine cured foundry binder systems and their uses  
The subject invention relates to a foundry binder system which cures in the presence of a volatile amine curing catalyst comprising (a) an epoxy resin,(b) an organic polyisocyanate, (c) a reactive...
5971056 Device for hardening foundry cores and use thereof  
A device for hardening a core mass containing sand contained within a foundry core forming tool includes a mixing device in communication with the foundry core forming tool for introducing a flow...
5924475 Method of making gas curable resin-coated sand cores  
A method of making sand cores to obtain optimum mechanical properties and particularly to obtain accurate adjustment of the gas curing cycle for making optimum resin-coated sand cores. The method...
5911267 Cope with bore for gassing cores  
A cope for a core box has a passage for passing sand into a core box cavity and a bore for passing catalyst into the core box cavity to harden a sand core formed therein. The bore may extend from...
5887639 Method and apparatus for manufacturing gas-hardened molds  
A method and apparatus is provided for increasing the packing density and strength of sand for gas-hardening casting molds. The method is characterized by the steps of filling spaces defined by a...
5803156 Method of making catalyst cured resin-coated sand cores  
A resin coated sand is blown into a core box to form an uncured core with a desired packing density. The core box has one or more inlets to permit ingress of gases and one or more outlets to permit...
5787957 Apparatus and methods for injecting and gassing of sand  
The injection tube for injecting and gassing of foundry sand in cavities in a core box has a first passage for passing sand and a second passage for passing hardening fluid. Sand may be injected...
5785107 Apparatus and method for producing multiple cores  
A core box assembly for molding cores includes a first core box and a second core box disposed above the first core box. Each of the core boxes has a cavity. A passage for delivering core material...
5518059 Method for setting a casting mold formed of a mold sand containing a binder and a device for conducting the method  
To minimize the amount of setting gas to be gasified and to be introduced into a molding sand containing a gas-settable binder, a metered volume of the setting liquid is injected directly into a...
5479981 Method for casting a hollow camshaft for internal combustion engine  
A core forming mold having at least three regions is provided and a molding sand is supplied into the core forming mold. The molding sand is hardened by an amine gas, to obtain a molding core...
5365995 Method of curing hot box sand cores  
A core box has (i) a thermally conductive cope and drag resiliently sealingly mating at essentially a horizontal parting plane, and (ii) core defining walls enclosing an interior and perforated by...
5360049 Core box vent construction  
The core box vent useful in core making, comprises a porous cylinder of sintered ceramic materials, the pores of such cylinder being less than will allow intrusion of the grain size of sand to be...
5325909 Process for hardening sand foundry parts  
A primary gas supply circuit and a secondary gas supply circuit are provided with the primary circuit having a part in common with the secondary circuit. The primary circuit is provided with a...
5242008 Method and apparatus for producing cores for foundry purposes  
For a production of foundry moulds, dies are stepwise, cyclically conveyed by a continuous conveyor and, synchronously with the dies, shot hoods are conveyed into a shot station which is common to...
5230378 Method and apparatus for manufacturing one-piece water jacket cores  
A one-piece water jacket core for an internal combustion engine is formed by providing a first core box portion and a second core box portion adapted for assembly and formation of the one-piece...
RE34228 Alkaline benzylic ether phenolic resin binders  
Modified benzylic ether resole resins and process for their preparation. The resins are prepared by treating a phenol with a molar excess of aldehyde in the presence of a divalent metal ion...
5162393 Production of foundry sand moulds and cores  
Foundry sand cores are produced by a method comprising the steps of: (1) providing a core box to contain the core (2) injecting into the core box a mixture of sand and a binder capable of being...
5135043 Apparatus and method for gas curing foundry cores and molds  
An improved apparatus for gas curing foundry cores includes an instrument system for attachment to a source of curing gas such as a gas generator. The system includes a signal generating section...
5127461 Water soluble cores, process for producing them and process for die casting metal using them  
Disclosed are water soluble core wherein a particulate refractory material is combined with a binding agent comprising Na2 CO3, Na2 O . NSiO2 where n is 0.5 to 4, and SiO2 as ingredients and a...
5077323 Method to improve flowability of alkaline phenolic resin coated sand  
A process for improving the flowability of resin coated sand which comprises the use of a flow promoter with the mixture of sand and resin. Also provided is a foundry mix comprising foundry sand, a...
5027890 Foundry moulding composition  
The invention relates to foundary moulding compositions useful for producing moulds for the manufacture of metal castings wherein the moulds are capable of giving castings with good surface finish...
5005630 Process for producing foundry molds and cores from sand and a binder  
In the process and apparatus for making molds and cores, a casing for producing molds or cores is filled with a mixture of foundry sand and a binder. The mixture is hardened by a reagent which is...
4985489 Production of articles of bonded particulate material and binder compositions for use therein  
A binder composition for producing articles of bonded particulate material such as foundry moulds or cores comprises an alkaline aqueous solution of a resol phenol-aldehyde resin and an oxyanion...
4974659 Cold box process for preparing foundry shapes which use acrylated epoxy resins  
The subject invention relates to foundry binder systems, which are cured with gaseous sulfur dioxide, comprising as separate components: 1. a blend of an acrylated epoxy resin and a monoester...
4971132 Alkaline phenolic resole resin binders  
A binder composition which comprises an aqueous alkaline solution of a phenolic resole resin and an additive wherein the additive is phenoxyethanol or a derivative of phenoxyethanol.
4886105 Process for curing sand moldings  
A process is described for curing sand moldings, in particular casting cores, by the cold box process. In this process a catalyst containing gas mixture escaping from the mold is passed over a...
4878533 Vaporization apparatus and method for producing curing gas  
A process for vaporizing a liquid curing agent includes heating the liquid curing agent while it is stored in a container. Heat is delivered to the container by a heated fluid passed through a...
4876294 Foundry binder systems based upon acrylated epoxy resins and epoxy resins  
The subject invention relates to foundry binder systems, which are cured with gaseous sulfur dioxide, comprising as separate components: 1. a blend of an acrylated epoxy resin and a monoester...
4854366 Method of making a moulded article  
In the production of moulds for making moulded articles, e.g. foundry moulds for producing castings, it is known to consolidate resin-coated granular filler in a moulding box containing a pattern...
4852636 Process for preparing foundry shapes and castings utilizing certain polyurethane binders  
This invention relates to phenolic resin compositions containing propylene glycol mono methyl ether acetate as a solvent. It also relates to the use of these compositions in foundry binders.
4852629 Cold-box process for forming foundry shapes which utilizes certain carboxylic acids as bench life extenders  
Certain carboxylic acids are used in polyurethane-forming binder compositions to extend the bench life of such compositions. The binder compositions are particularly useful for preparing sand...
Matches 1 - 50 out of 185 1 2 3 4 >