| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Method for producing regenerated foundry sand | JP2008231954 | 2008-09-10 | JP2009214178A | 2009-09-24 | INA YOSHIMITSU |
| <P>PROBLEM TO BE SOLVED: To provide a method for producing regenerated foundry sand with which the removing ratio of impurities is high, and a casting quality and a mold strength can be improved. <P>SOLUTION: The regenerated foundry sand is produced by performing a grinding treatment to the recovered sand under presence of additive (A) composed of liquid having ≤35 mN/m surface tension at 25°C and ≥150°C boiling point at 1 atmospheric pressure. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 122 | Products for the manufacture of molds and cores used in the casting, and methods of making and recycling the product from the crushed rock | JP2003518752 | 2002-06-25 | JP2004537420A | 2004-12-16 | ケネス、ハリス; ロバート、イー．スパークス |
| 従来には無い出発材料から、オーライト化と分類とを組み合わせることにより、鋳物質砂を生成するためのシステムおよび方法。 流入する粒状物質は、最初に、制御エネルギー磨滅ユニットへと方向付けられ、このユニットで粒子同士が互いに衝突される。 そのような衝突により、粒子を粉砕することなく表面の突起およびコーティングを削り取ることで、粒子が清浄化されて丸められる。 その後、粒子流は、マルチフラクション分類器へと方向付けられてこれを通過する。 この分類器において、粒子流は、２つ以上の使用可能なグレードの鋳物砂に分離される。 分類段階においては、空気分類器が好ましい。 | ||||||
| 123 | Processing method of sand for casting molds or cores | JP2524391 | 1991-01-28 | JPH0824993B2 | 1996-03-13 | IUO HENITSUHI |
| 124 | Method and device for adjusting discharge of sand | JP11172393 | 1993-05-13 | JPH0679398A | 1994-03-22 | FUORUKAA GODERITSUJI; BUORUTAA SHIYUTOUTSUMAN |
| PURPOSE: To reduce the size of a pouring conical part formed between the end part of a discharging pipe and a base and to simply control the discharge of sand from the discharging pipe by increasing the supplying quantity of the air supplied via the base, which has an opening hole of an air conveyor into the air conveyor arranged in succession to a fluidized bed kiln. CONSTITUTION: Sand flowing out from a discharging pipe 4 is formed as the pouring conical part on a base 7. The sand coming out of the discharging pipe 4 is separated by passing the air through the opening hole of the base 7 for air conveyor 5, and the sand in the pouring conical part is supplied to the following treating process with the draft of the conveyor 5. The position of the air conveyor 5 or this base 7 are adjustable in only the vertical direction and the horizontal direction, with a simple mechanical mechanism. The shape of the pouring conical part 6 can be changed with the function for setting the position of the sand outlet in the discharging pipe 4 in the horizontal direction and the distance from the sand outlet to the base 7 of the air conveyor 5 according to the supplied quantity of air. | ||||||
| 125 | JPH06501058A - | JP51831191 | 1991-10-15 | JPH06501058A | 1994-01-27 | |
| 126 | Separation of bentonite and carbide carrier particles from dust mechanically obtained during reclamation of used sand | JP30782991 | 1991-11-22 | JPH04284867A | 1992-10-09 | RUUDOBUITSUHI UIRUHERUMU; PEETAA ROSUMANISU |
| PURPOSE: To provide a method for separating bentonite and carbide carrier particles from dust mechanically obtd. during the reclamation of used sand with no danger of degrading the quality of the bentonite and the carbon particles due to high temp. CONSTITUTION: This method is executed by removing the particles, which are collected with a cyclone, from the cyclone and thereafter drying the particles with a dryer at the first stage, transporting the dried powder to a screen at the second stage, and separating the bentonite and the carbon carrier particles from the mechanically obtd. particles at the time of the reclamation of the used sand. COPYRIGHT: (C)1992,JPO | ||||||
| 127 | Separating and recovering method of used molding sand | JP9956184 | 1984-05-17 | JPS60244445A | 1985-12-04 | HARAGA TETSUO; KATOU KOUJI; MIZUNO KUNIAKI |
| PURPOSE:To recover efficiently and inexpensively used molding sand at high purity by separating said sand to magnetically stuck sand and non-magnetically stuck sand by magnetic separation and recovering the magnetically stuck sand to a system for recovering the metallic mold sand and a system for recovering the shell sand. CONSTITUTION:The sand mixture 2 recovered from used casting molds is conducted via a hopper 6 to the inside of a crusher 1. The crushed sand mixture 7 is conducted via a belt conveyor 8 and a hopper 9 to a screening device 10. The lumped sand mixture 15 is removed by the device 10 and the sand mixture 18 having the size smaller than a prescribed size is conducted to the down stream by conveyor 17. The ferromagnetic material 24 contained in the sand mixture 18 is removed by an auxiliary magnetic separator 19. The sand mixture 28 from which the ferromagnetic material is removed is conducted to a magnetic separator 27, by which the sand is separated to the magnetically stuck sand 29 and the non-magnetically stuck sand 30. The sands are conducted respectively to tanks 33, 34 where the sands are recovered as base sand for green sand and base sand for shell sand. | ||||||
| 128 | Device and method of regenerating used foundry sand | JP8359784 | 1984-04-25 | JPS6018251A | 1985-01-30 | ARUFURETSUDO BUOOGERU |
| 129 | Reconditioning method of molding sand | JP9052083 | 1983-05-23 | JPS59215243A | 1984-12-05 | MATSUKAWA YASUTSUGU; JINKAWA AKIHIRO; KIDO MASAYUKI |
| PURPOSE:To remove the binder on the surface of old sand for a casting mold used for casting by friction between the old sand and fresh sand and reconditioning the old sand to molding sand at a low cost by mixing said old sand with the fresh sand and rotating the same at a high speed. CONSTITUTION:Old sand and fresh sand are put respectively into an old sand tank 11 and a fresh sand tank 12. The electrically driven gate 14 of the tank 12 is opened to charge a prescribed amt. of the fresh sand into a reconditioning device 15 so that a self-lining layer by the fresh sand is formed on the inside surface of the rotary drum in the device 15. The electrically driven gate 13 of the tank 11 is then opened to charge the old sand into the device 15. The fresh sand and the old sand are mixed in the rotary drum so that the satisfactory reconditioning effect of the old sand is obtd. and the grain shape of the fresh sand is improved by the friction or polishing force by the fresh sand having sharp angles with the old sand. The old sand is thus reconditioned to the molding sand at a low cost. | ||||||
| 130 | JPS583781B2 - | JP16842479 | 1979-12-26 | JPS583781B2 | 1983-01-22 | JEEMUZU HYUU KAAPENTAA; JOSEFU EDOWAADO BORINGU JUNIAA |
| 131 | Recovered and reconditioned sand, microwave hardenable molding sand made of said sand and its production | JP10132581 | 1981-07-01 | JPS583744A | 1983-01-10 | TOUNO TAKASHI; YAMANISHI AKIO; SATOU KANICHI |
| PURPOSE:To produce molding sand of superior microwave curing performance inexpensively by dry washing recovered sand under application of impact and frictional effect by circulation of said sand in a rotary vessel then adding a thermosetting resin thereto and kneading these. CONSTITUTION:Recovered sand is charged from a hopper 6 into a rotary vessel 1, and under circulation by rotation of the vessel 1, it is scrubbed by the impact and frictional effect of a high speed revolving agitator 4. The impurities on the surfaces of the sand grains are moderately removed by this dry washing, and the sand contg. 0.5-6% clay components and 0.3-5% carbonaceous org. materials is reconditioned. The reconditioned sand is classified, and a thermosetting resin is added at 2-5% to 100pts.wt. reconditioned sand, then these are kneaded. In this way, a large amt. of the reusable reconditioned sand is obtained in a large amt. with low energy. From this reconditioned sand, the microwave curable molding sand having uniform and quick microwave curing performance and having sufficient shell strength without addition of dielectric materials such as carbon black is obtained. | ||||||
| 132 | JPS5348232B2 - | JP13233274 | 1974-11-15 | JPS5348232B2 | 1978-12-27 | |
| 133 | JPS5214857B1 - | JP9667871 | 1971-11-30 | JPS5214857B1 | 1977-04-25 | |
| 134 | Sunanosaiseioyobiseijoka | JP14855975 | 1975-12-15 | JPS5186019A | 1976-07-28 | JURIASU MASHUU BURUUENSUTAIN |
| 135 | JPS4874416A - | JP13037172 | 1972-12-28 | JPS4874416A | 1973-10-06 | |
| 136 | 鋳物砂冷却器 | JP2017547469 | 2016-03-18 | JP6396606B2 | 2018-09-26 | セイラー、アンドレアス; ゲルル、シュテファン; リー、フォン |
| 137 | Supply system of adjustment sand | JP2011513292 | 2010-04-14 | JP5553069B2 | 2014-07-16 | 敬司 知久; 克宣 鈴木; 泰嗣 大野; 謙二 石黒 |
| 138 | Process for regeneration of spent foundry sand | JP32137690 | 1990-11-27 | JP2948653B2 | 1999-09-13 | FURANTSU SATOMAA; RUUTOIHI UIRUHERUMU |
| 139 | Method and apparatus for regulating the discharge of sand | JP11172393 | 1993-05-13 | JPH07115114B2 | 1995-12-13 | ヴォルター・シュトゥツマン; フォルカー・ゴデリッジ |
| 140 | Apparatus and method for reproducing the spent foundry sand | JP8359784 | 1984-04-25 | JPH0616917B2 | 1994-03-09 | ARUFURETSUDO UOOGERU |
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