子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Process for treating old foundry sand for reuse in place of core sand | US754961 | 1991-09-04 | US5163496A | 1992-11-17 | Hermann Jacob |
| The present invention relates to a process for treating old foundry sand for reuse in place of core sand wherein the precleaned sand grains are subjected to further abrasive-thermal treatment so as to volatize and remove basic constituents adhering to the precleaned sand grains. | ||||||
| 102 | Method and an installation for regenerating molding sands | US090449 | 1979-11-01 | US4291379A | 1981-09-22 | Renzo Cappelletto; Jean Willame |
| The method for automatically regenerating molding sands consists in mixing the spent sand and in intermittently withdrawing a cylindrical test sample of sand. The compactibility of the test sample is measured intermittently by determining the reduction in height of the sample under the action of a predetermined force. The quantity of water to be added to the sand is determined by means of a microprocessor from the result of the measurement and from the temperature of the sample. The results of measurements of compactibility and compressive strength of the test sample are transmitted to the microprocessor which determines the quantity of bentonite, of foundry black and the like to be added to the spent sand. | ||||||
| 103 | Sand conditioner assembly | US595079 | 1975-07-11 | US3986675A | 1976-10-19 | Ordean E. Egland |
| A method and apparatus for mold sand conditioning which includes the directing of mold sand between bristles of counterrotating brushes where the bristles are intertwined and the sand is forced into the brushes to be finely divided and aerated upon discharge. The conditioning assembly includes an enclosing housing with a driving brush journaled therein and connected to a driving motor. A driven brush is mounted in the housing and slidably adjustable relative to the first brush to maintain a predetermined overlap between the bristles to insure the milling or conditioning operation on the mill sand. | ||||||
| 104 | Method and apparatus for conditioning granular material | US564860 | 1975-04-03 | US3979073A | 1976-09-07 | Raymond M. Leliaert |
| A method and apparatus for scrubbing particles of sand used in foundry molding is disclosed. The device utilizes a rotating impellor surrounded by a stationary control cage having at least one upwardly positioned opening therein to project sand against a target. The sand rebounds from the target and is continually intercepted and impacted by subsequent grains of sand hurled by the impellor through the control cage opening. The device produces a scrubbing action on the particles by the repeated and continual contact with each to reduce binder buildup from the molding process. A first stage scrubbing of the particles is obtained by causing the particles to be compacted between the rotating impellor and the control cage prior to their being thrown against the target. The sand particles may be recycled through the device any number of times in order to increase the scrubbing effect and further reduce binder buildup. | ||||||
| 105 | Process and arrangement for the regeneration of foundry sand | US495524 | 1974-08-07 | US3948447A | 1976-04-06 | Hermann Jacob |
| Used foundry sand which is predominantly in the form of lumps containing a binder for the sand particles is regenerated. In the course of the regeneration, the lumps are comminuted and, simultaneously therewith, an at least partial separation of the sand and the binder is effected. The simultaneous comminution and separation is effected by a dry, mechanical procedure during which the lumps are subjected to an abrasive or scouring action. This is accomplished by means of a pair of vibrating or rotating brush-like members provided with steel bristles. These members are located adjacent the bottom of a trough-shaped strainer which permits the passage of sand particles having a size less than a predetermined size. A cover is provided for the strainer and serves to cause rebounding of particles which impinge upon it. A feed hopper feeds the lumps of used foundry sand to the brush-like members and a bar overlying the gap between the latter prevents entry of the lumps into the gap. A housing surrounds the brush-like members and the feed hopper, and dust-like material is withdrawn from the housing by suction. A chute located beneath the strainer serves to convey sand particles which have passed through the latter from the housing. | ||||||
| 106 | Foundry mixing machine | US30583972 | 1972-11-13 | US3850413A | 1974-11-26 | REBISH E |
| A foundry mixing machine is disclosed for mixing a mold material component with a binder component comprising a mixer for dispersing the binder component into a dispersion and provisions for establishing a flow of the mold material component to traverse the dispersion a plurality of times to enable a complete mixing of the mold material and binder components. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
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| 107 | Foundry mixing machine | US3773299D | 1971-12-27 | US3773299A | 1973-11-20 | REBISH E |
| A foundry mixing machine is disclosed for mixing a mold material component with a binder component comprising a rotating rotor means to mix the components by action of centrifugal force. The invention is suitable for use with multi-component binders being able to mix two of the three components by a first mixing means and to mix the remaining component with the mixed components by a second mixing means. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation of the scope of the claimed subject matter.
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| 108 | Apparatus for granulating molded sand | US3770218D | 1972-01-03 | US3770218A | 1973-11-06 | CARPENTER J |
| In an apparatus for granulating molded sand, the feed material including lumps of molded sand from a first conveying surface are discharged onto the upper section of an endless conveyor which moves the material through a stream of abrasive particles and discharges the granulated sand and accumulated abrasive particles on a second conveying surface.
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| 109 | Particulate material and shaped article made therefrom | US64245267 | 1967-05-31 | US3576655A | 1971-04-27 | HINT IOHANNES ALEXANDROVICH |
| A MODULAR CONSTRUCTIONAL UNIT MADE FROM AN AUTOCLAVE MIXTURE OF 65 TO 86 PERCENT BY WEIGHT OF DRY MIXTURE SAND, 14 TO 35 PERCENT BY WEIGHT OF DRY MIXTURE LIME, AND 8 TO 43 PERCENT OF THE DRY MIXTURE OF WATER, THE SO MANUFACTURED MODULAR CONSTRUCTIONAL UNIT HAVING A COMPRESSIVE STRENGTH OF FROM 200 TO 3250 KG/CM2. THE DENSITY OF THE MODULAR CONSTRUCTIONAL UNIT IS FROM ABOUT 0.9 TO 2.0 KG/DM2. A FOAMING AGENT OF EITHER ALUMINUM POWDER OR A MIXTRUE OF 60 PERCENT CARPENTER''S GLUD AND 40 PERCENT COLOPHONY SOAP MAY BE ADDED.
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| 110 | Foundry sand recovery methods | US3542299D | 1968-07-11 | US3542299A | 1970-11-24 | SHOLL SAMUEL A |
| 111 | Curing foundry cores and moulds | US3472307D | 1967-05-09 | US3472307A | 1969-10-14 | GODDING RONALD G |
| 112 | Molding composition and method | US20808362 | 1962-07-06 | US3255024A | 1966-06-07 | ALEXANDER JAMES G; WAGNER PAUL W; BEAN XARIFA L |
| 113 | Method and apparatus for enveloping granular and/or short fibred substances in coatings of other substances, preferably in thin films of synthetic plastic substances | US19307262 | 1962-05-03 | US3182633A | 1965-05-11 | WILHELM LODIGE; FRITZ LODIGE; JOSEF LUCKE |
| 114 | Sand conditioning apparatus | US64606057 | 1957-03-14 | US2898651A | 1959-08-11 | BUTZOW GEORGE M |
| 115 | Variable batch measuring system | US35710553 | 1953-05-25 | US2742201A | 1956-04-17 | NELSON HARTLEY |
| 116 | Sand conditioning apparatus | US2735662D | US2735662A | 1956-02-21 | ||
| 117 | Molder's sand treating and conveying apparatus | US16311950 | 1950-05-20 | US2646602A | 1953-07-28 | HARDY PETER S |
| 118 | Method of reconditioning used sand | US72896747 | 1947-02-15 | US2508857A | 1950-05-23 | CHAMBERLIN MARSHALL V |
| 119 | Apparatus for cooling sand mullers | US45830242 | 1942-09-14 | US2314486A | 1943-03-23 | DVORAK JAMES J |
| 120 | Dispensing mechanism and process | US38023541 | 1941-02-24 | US2291710A | 1942-08-04 | HAGEMEYER HENRY F |
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