JPS566756A - Packing method of core sand for casting - Google Patents
Packing method of core sand for castingInfo
- Publication number
- JPS566756A JPS566756A JP8143679A JP8143679A JPS566756A JP S566756 A JPS566756 A JP S566756A JP 8143679 A JP8143679 A JP 8143679A JP 8143679 A JP8143679 A JP 8143679A JP S566756 A JPS566756 A JP S566756A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- sand
- communicating
- flow
- vent holes
- 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.)
- Granted
Links
Landscapes
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE: To make it possible to flow and pack molding sand even in the constricted portion or the like in a mold by providing vent holes communicating with the mold to a core box and introducing the molding sand into the mold while evacuating the inside of the mold.
CONSTITUTION: A sand lead-in port 3 communicating with a mold 2 is provided on one side of a core box 1, and plural vent holes 4 communicating with the mold 2 are formed on the other side. A vacuum pump 7 is driven to suck the air in the mold through the vent holes 4 and introduce shell sand through the sand lead-in port 3 while evacuating the mold inside. Thereby, the flow of the sand is created even in the constricted part 2a, by which scaffold is prevented and the shell sand is packed sufficiently into the mold 2. This method makes it possible to flow and pack the molding sand in the mold 2 irrespective of the presence or not of water- base coating film and even when there are constricted portions, thus the improvement in the core quality is achieved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8143679A JPS566756A (en) | 1979-06-29 | 1979-06-29 | Packing method of core sand for casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8143679A JPS566756A (en) | 1979-06-29 | 1979-06-29 | Packing method of core sand for casting |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS566756A true JPS566756A (en) | 1981-01-23 |
JPS649901B2 JPS649901B2 (en) | 1989-02-20 |
Family
ID=13746333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8143679A Granted JPS566756A (en) | 1979-06-29 | 1979-06-29 | Packing method of core sand for casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS566756A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008137688A (en) * | 2006-11-30 | 2008-06-19 | Yoshino Kogyosho Co Ltd | Spouting cap |
CN102896282A (en) * | 2012-11-06 | 2013-01-30 | 信阳同合车轮有限公司 | 8-shaped core mold for detecting strength of train wheel core and detection method |
-
1979
- 1979-06-29 JP JP8143679A patent/JPS566756A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008137688A (en) * | 2006-11-30 | 2008-06-19 | Yoshino Kogyosho Co Ltd | Spouting cap |
CN102896282A (en) * | 2012-11-06 | 2013-01-30 | 信阳同合车轮有限公司 | 8-shaped core mold for detecting strength of train wheel core and detection method |
Also Published As
Publication number | Publication date |
---|---|
JPS649901B2 (en) | 1989-02-20 |
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