JPS5653844A - Preparation of molding sand - Google Patents
Preparation of molding sandInfo
- Publication number
- JPS5653844A JPS5653844A JP12960679A JP12960679A JPS5653844A JP S5653844 A JPS5653844 A JP S5653844A JP 12960679 A JP12960679 A JP 12960679A JP 12960679 A JP12960679 A JP 12960679A JP S5653844 A JPS5653844 A JP S5653844A
- Authority
- JP
- Japan
- Prior art keywords
- load current
- binder
- current value
- water
- kneading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE: To make casting quality better and stabler by obtaining water, etc. of an insufficient amount based on the relation formula of moisture, binder, etc. having beforehand been obtained from the differential value between the load current value of a kneading machine at the charge of old sand and the load current value at the addition of a preset amount of water, etc., and adding the same with kneading.
CONSTITUTION: The old sand 1 having been recovered after knockout is charged by a preset amount into a kneading machine 8. In the next preparation of molding sand, the moisture content and the amount of the binder contained at the above- described preset time are detected based on the relation formula between the above- described differential value and the moisture content having beforehand been obtained from the differential value between the load current value of the driving motor 9 of the kneading machine 8 and the load current value at the time when the kneading is performed for the preset time by adding respectively preset amounts of water 14 and binder (bentonite) 13 to the old sand 1, and supplying the insufficient amounts of water and binder through controlling valves 16, 20 by a motor 12 in an automatic control unit 21, whereby the molding sand is prepared. In this way, the mold characteristics are stabilized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12960679A JPS5653844A (en) | 1979-10-08 | 1979-10-08 | Preparation of molding sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12960679A JPS5653844A (en) | 1979-10-08 | 1979-10-08 | Preparation of molding sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5653844A true JPS5653844A (en) | 1981-05-13 |
Family
ID=15013608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12960679A Pending JPS5653844A (en) | 1979-10-08 | 1979-10-08 | Preparation of molding sand |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5653844A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816312A (en) * | 1994-09-30 | 1998-10-06 | Mazda Motor Corporation | Method of and apparatus for reclaiming foundry sand |
| WO2008151874A1 (en) * | 2007-06-11 | 2008-12-18 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Method for preparing molding sand |
-
1979
- 1979-10-08 JP JP12960679A patent/JPS5653844A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816312A (en) * | 1994-09-30 | 1998-10-06 | Mazda Motor Corporation | Method of and apparatus for reclaiming foundry sand |
| DE19536803B4 (en) * | 1994-09-30 | 2008-08-14 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Process and device for the treatment of foundry sand |
| WO2008151874A1 (en) * | 2007-06-11 | 2008-12-18 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Method for preparing molding sand |
| DE102007027298A1 (en) | 2007-06-11 | 2008-12-18 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Process for the treatment of foundry sand |
| JP2010528873A (en) * | 2007-06-11 | 2010-08-26 | マシーネンファブリーク・グスタフ・アイリッヒ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コムパニー・コマンディットゲゼルシャフト | Method for processing molding sand |
| US8225844B2 (en) | 2007-06-11 | 2012-07-24 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Method for processing moulding sand |
| KR101477513B1 (en) * | 2007-06-11 | 2014-12-30 | 마쉬넨파브릭 구스타프 아이리히 게엠베하 운트 코. 카게 | Method for processing moulding sand |
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