| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Case for use in sintering process to produce rare-earth magnet, and method for producing rare-earth magnet | US09517493 | 2000-03-02 | US06464931B1 | 2002-10-15 | Akiyasu Oota; Tsuyoshi Wada; Katsumi Okayama |
| A case according to the present invention is used in a sintering process to produce a rare-earth magnet. The case includes: a body with an opening; a door for opening or closing the opening of the body; and supporting rods for horizontally sliding a sintering plate, on which green compacts of rare-earth magnetic alloy powder are placed. The supporting rods are secured inside the body. At least the body and the door are made of molybdenum. | ||||||
| 162 | High temperature vacuum furnace | US09988927 | 2001-11-19 | US20020126729A1 | 2002-09-12 | Lennie L. Ashburn |
| An electric resistance high temperature vacuum furnace having radiant heating units evenly spaced around the sides and ends of the furnace hot zone. Pairs of units are automatically regulated both radially and longitudinally according to the temperature required by the workload in the hot zone. The units each comprise parallel aligned elements electrically connected in series at their one ends. Each element has lengthwise surfaces angularly disposed from each other to form a beam structure of high section modulus for stiffness and resistance to sagging. Also, the angles of the element surfaces facing a heat-reflective assembly substantially enable all of the energy radiated toward the assembly to be reflected into the hot zone in addition to the direct radiation from the surfaces facing the hot zone. The furnace includes a re-circulating cooling system for rapid cooling of the furnace and workload An inert cooling fluid bypasses the hot zone, passing instead around the outside of the heat assembly and through a heat exchanger until the circulated fluid temperature drops below the maximum tolerated by all component parts in the cooling system, after which the fluid passes directly through the hot zone. | ||||||
| 163 | Material feeding mechanism in association with continuous sintering apparatus | US09930277 | 2001-08-16 | US06431860B1 | 2002-08-13 | Shigenori Aono; Mitsuaki Kato; Hitoshi Kobayashi |
| In a material feeding mechanism in association with a continuous sintering apparatus, a material (S) carried by a transporting conveyer (1) into an atmosphere-displacement chamber (2) is fed into a furnace casing (4) of the continuous sintering apparatus by using a loading pusher (3). The transporting conveyor, the atmosphere-displacement chamber, and the loading pusher are arranged in such a manner that a direction in which the material is carried by the transporting conveyor and a direction in which the material is fed from the atmosphere-displacement chamber into the furnace casing by the loading pusher are linearly aligned, and the loading pusher and a drive unit thereof are installed under a floor of the atmosphere-displacement chamber so that the loading pusher moves up over the floor surface of the atmosphere-displacement chamber and moves forward and backward on the floor surface of the atmosphere-displacement chamber when the material is fed into the furnace casing. By such a construction, the longitudinal dimension of the continuous sintering apparatus can be made as short as possible to realize a compact design as a whole. | ||||||
| 164 | Method and system for automatic electrical sintering | US09538474 | 2000-03-30 | US06383446B1 | 2002-05-07 | Masao Tokita |
| The present invention is a method of automatically loading powder material into a sintering mold and subsequently effecting electrical sintering to the powder material in the sintering mold. | ||||||
| 165 | Continuous sintering furnace and use thereof | US09972933 | 2001-10-10 | US20020045144A1 | 2002-04-18 | Kazumi Mori; Toru Iura; Tetsuya Ishimoto; Kazuhiko Katsumata; Hiroshi Machida |
| A continuous sintering furnace has an entrance-side deaerating chamber through which trays each with an material to be sintered being mounted thereon may pass, preheating, heating and cooling zones into which the trays are sequentially fed from the deaerating chamber, an exit-side deaerating chamber through which the trays having passed through the cooling zone may pass, a pusher for pushing the tray from the deaerating chamber to the preheating zone, a puller for pulling the tray from the cooling zone to the deaerating chamber, an intermediate puller for pulling the tray from the heating zone to the cooling zone, a vertically movable door between the deaerating chamber and the preheating zone, a vertically movable intermediate door adjacent to the door and arranged at an upstream end of the preheating zone in the direction of transportation of the trays, a vertically movable intermediate door between the heating and cooling zones and a vertically movable door between the cooling zone and the deaerating chamber. With the door being at a lowered position thereof for closing, heat input is suppressed to the cooling zone. Movement of the trays in the cooling zone is effected by the intermediate puller so as to decrease the number of trays needing to be pushed by the pusher. | ||||||
| 166 | Method for producing rare-earth magnet | US09846783 | 2001-05-02 | US20020012600A1 | 2002-01-31 | Koki Tokuhara; Akiyasu Oota; Tsuyoshi Wada; Katsumi Okayama; Tomoiku Ohtani; Kunitoshi Kanno |
| The method for producing a rare-earth sintered magnet of the present invention includes the steps of: compacting alloy powder for the rare-earth sintered magnet to form a green compact; loading the green compact into a case having a structure restricting a path through which gas flows between the outside and inside of the case, and placing a gas absorbent at least near the path; and sintering the green compact by heating the case including the green compact inside in a decompressed atmosphere. | ||||||
| 167 | Apparatus and method of continuous sintering a web material | US09437803 | 1999-11-10 | US06306336B1 | 2001-10-23 | Joseph R. Hrezo; John F. Joyce |
| An apparatus is disclosed for continuously sintering a web material with a sintering furnace. An input refractory drive unrolls a refractory material from an input refractory roll and feeds the refractory material upon a furnace conveyor of the furnace. An output refractory drive removes the refractory material from the furnace and rolls the refractory material onto an output refractory roll. An input media drive unrolls the media material from an input media roll and feeds the media material onto the refractory material. An output media drive removes the media material from the refractory material and rolls the media material onto an output media roll. A hanging sensor senses the catenary hang of the media material from the input media roll. A control is connected to the hanging sensor for powering the input and output drives unrolling and rolling the materials in unison with one another and in unison with the movement of the furnace conveyor for maintaining a constant catenary hang of the media material from the input media roll to maintain a constant tension thereon. | ||||||
| 168 | Method and apparatus for transporting green work pieces through a microwave sintering system | US246077 | 1999-02-05 | US6066290A | 2000-05-23 | Mahlon Denton Dennis; Rustum Roy; Dinesh Agrawal; Paul Gigl |
| This disclosure sets forth a method and apparatus for microwave processing of green work pieces. Typically, individual green work pieces are formed in a small mold cavity crucible, and individual crucibles are then indexed into and out of a tube for a controlled transit time along the tube. The tube extends in one embodiment through a preheater and then into the microwave cavity, the preheater providing an initial heating step to change the rate of absorption of microwave energy so that microwave sintering is accomplished in the cavity. | ||||||
| 169 | Sintering kiln | US237748 | 1999-01-26 | US6031207A | 2000-02-29 | Bruce J. Dover; Edward V. McCormick |
| A kiln, useful for sintering basemetal capacitors comprises an inner zone having vertically oriented gas dispersion conduits for the inlet and radial dispersion of gas and vertically oriented electrical heating elements. Each gas dispersion conduit comprises a porous or perforated inner tube for a porous or perforated outer tube concentrically positioned around the inner tube. The annular space between is filled with a porous refractory medium, such as a bulk ceramic fiber. The temperature of the inner zone is controlled by the electrical heating elements. The gas is evenly heated as it passes radially from the inner tube through the porous refractory medium and then through the outer tube. Surrounding the inner zone is a multiplicity of stacks of substantially horizontally-oriented trays on which the material or articles to be sintered or otherwise treated are placed. The circle of stacks of trays is surrounded by an outer heating zone comprising an outer ring of electrical heating elements. The outer heating zone is, in turn, surrounded by an outer wall of porous refractory insulation. The apparatus is enclosed in a water-cooled shell of heat resistant material. | ||||||
| 170 | Process for producing long ceramic body | US988356 | 1997-12-10 | US6013224A | 2000-01-11 | Mitsuru Hattori |
| A method for producing a long ceramic body with lower shape fluctuations and higher shape accuracy, by controlling the deformation of the long ceramic body, includes firing a long non-sintered ceramic body which has been suspended in a sheath so as not to contact directly the interior surface of the sheath, at a sufficient temperature and for a sufficient time until sintering is completed; inverting the long body; and re-firing the long body at a sufficient temperature for re-sintering the same. A predetermined downward load is applied to the long body in the vicinity of the bottom thereof during re-firing. | ||||||
| 171 | Process and apparatus for the preparation of particulate or solid parts | US687870 | 1996-07-26 | US6004505A | 1999-12-21 | Rustum Roy; Dinesh Agrawal; Jiping Cheng; Mahlon Dennis; Paul D. Gigil |
| The present disclosure is directed to a method of converting green particles to form finished particles. The apparatus used for sintering incorporates an elongate hollow tube, an insulative sleeve there about to define an elevated temperature zone, and a microwave generator coupled through a wave guide into a microwave cavity incorporated the tube. The particles are moved through the tube at a controlled rate to assure adequate exposure to the microwave radiation. Another form sintered a solid part in a cavity or mold. | ||||||
| 172 | Si/SiC-based sintered material having excellent corrosion resistance and kiln furniture | US803442 | 1997-02-20 | US5851941A | 1998-12-22 | Shigeru Hanzawa |
| A Si/SiC-based sintered material containing Si and SiC as constituents, which has a SiO.sub.2 content of 0.5% by weight or less and an oxygen content of 0.25% by weight or less and which is corrosion-resistant in a high-temperature atmosphere containing an element having a high ionic-bond formability. A kiln furniture made of the sintered material. The sintered material and the kiln furniture have high corrosion resistance in a high-temperature environment containing, as a corrosion source, an element having a high ionic-bond formability and can withstand long-term use. | ||||||
| 173 | Method for fabrication and sintering composite inserts | US730222 | 1996-10-15 | US5848348A | 1998-12-08 | Mahlon Denton Dennis |
| The present disclosure is directed to the fabrication of a highly wear layer either directly upon an article or tool support structure or body, or as a wear resistant insert or element which is subsequently attached to the tool body. The wear material is formed by sintering particulate material using the absorption of microwave energy as a means of heating. The disclosure also encompasses post manufacture annealing, using heating by microwave radiation, of both highly wear resistant inserts and composite articles which consist of a wear resistant layer and a body. The wear resistant material, whether fabricated directly upon an article or fabricated separately and subsequently affixed to an article, provides an abrasive wear surface and greatly increases the life of the article. Microwave sintered wear resistant surfaces for mills, drills, grinders, brakes, bearings, saw blades and other articles and assemblies are disclosed. | ||||||
| 174 | Apparatus for charging material to be sintered into a sintering machine | US406104 | 1989-09-12 | US5002262A | 1991-03-26 | Makoto Gocho; Masayasu Shimizu; Hidetoshi Noda; Osamu Komatsu; Hideaki Inoue |
| An apparatus for charging material to be sintered into a sintering machine comprises a shuttle conveyor transporting pelletized material to be sintered, a wide conveyor receiving said pelletized material from the shuttle conveyor and feeding the pelletized material to a pallet moving in a predetermined direction, a deflector plate receiving the pelletized material from the wide conveyor and feeding the pelletized material to the pallet and a support plate supporting the material fed to the pallet from behind, the support plate being arranged facing the deflector plate below the wide conveyor and over the upper side of the pallet. | ||||||
| 175 | Silicon carbide furnace | US283696 | 1981-07-15 | US4399546A | 1983-08-16 | James D. Phillips |
| Electrical resistance furnace and manufacturing plant for the preparation of silicon carbide utilizing a resistance core of carbon horizontally inserted within the load and having a broken ring configuration. | ||||||
| 176 | Method for conveying green agglomerates including a feed conveyor, a laterally reciprocable conveyor and an aligned transport conveyor | US16428671 | 1971-07-20 | US3915283A | 1975-10-28 | MUNCK TONI |
| A method for conveying green agglomerates, such as pellets, is disclosed. An elongated conveyor comprising a series of parallel smooth surface rollers is provided to receive pellets discharged from a transfer conveyor arranged upstream thereof. The transfer conveyor is supported for lateral shifting with respect to the transport conveyor. A narrow feed conveyor is arranged to deposit pellets on the transfer conveyor while it is shifting laterally of the transport conveyor. Pellets are also deposited on the transport conveyor while the transfer conveyor is shifting. The feed conveyor is arranged either longitudinally or transversely with respect to the transfer conveyor.
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| 177 | Tunnel furnace | US51245465 | 1965-12-08 | US3355157A | 1967-11-28 | LUBERTUS SCHULTINK; GRADUS KLOPMAN |
| 178 | Dust trap and valve therefor | US40861964 | 1964-11-03 | US3257045A | 1966-06-21 | RAMUAL CARPENTIER URGEL |
| 179 | Apparatus for charging a powdered ore sintering machine with a raw material | US17399362 | 1962-02-19 | US3148763A | 1964-09-15 | YASUHIRO SAWADA |
| 180 | Charging device for sintering bands | US1838160 | 1960-03-29 | US3067857A | 1962-12-11 | FRIEDRICH THOMAS; FRANZ RODIS; ARNULF HINZ |
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