JPS5689351A - Preparation of molding sand - Google Patents

Preparation of molding sand

Info

Publication number
JPS5689351A
JPS5689351A JP16726379A JP16726379A JPS5689351A JP S5689351 A JPS5689351 A JP S5689351A JP 16726379 A JP16726379 A JP 16726379A JP 16726379 A JP16726379 A JP 16726379A JP S5689351 A JPS5689351 A JP S5689351A
Authority
JP
Japan
Prior art keywords
sand
floatation
raw
impurities
fine
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
Application number
JP16726379A
Other languages
Japanese (ja)
Other versions
JPS6342531B2 (en
Inventor
Toyozo Ishioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamakawa Sangyo Co Ltd
Original Assignee
Yamakawa Sangyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamakawa Sangyo Co Ltd filed Critical Yamakawa Sangyo Co Ltd
Priority to JP16726379A priority Critical patent/JPS5689351A/en
Publication of JPS5689351A publication Critical patent/JPS5689351A/en
Publication of JPS6342531B2 publication Critical patent/JPS6342531B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE: To obtain silica sand for casting of high quality from sand contg. a large amount of impurities by using an anion capturing agent consisting essentially of a dispersant, a foaming agent and a fatty acid and adapting a floatation method, at the time of removing the impurities of raw material sand.
CONSTITUTION: Raw ore F of sea bottom sand or the like is sieved and raw sand of about 14 meshes is obtained. This is passed through then subjected to attrition treatment 6, after which the sand is passed through a cyclone 7 and a classifier, whereby it is removed of slime and is made into floatation raw sand. This raw sand is charged into a condition tank 9 contg. a dispersant, a foaming agent, a capturing agent, etc., where it is subjected to condition impartation, thence it is supplied to a floatation machine 10. An oleic acid, a linolic acid, etc. are contained in this floatation agent, and the raw sand is held controlled at pH7.0W8.5. Floating sand of impurities such as ore, sea shells and others is sent to a fine floatation machine 11 to undergone fine floatation. The sunken grit is sent to spiral classifier 14 and after it is dehydrated, it is stored as a product in a stockyard 15. The sunken grit of the fine floatation machine 10 is returned to the floatation machine 10.
COPYRIGHT: (C)1981,JPO&Japio
JP16726379A 1979-12-21 1979-12-21 Preparation of molding sand Granted JPS5689351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16726379A JPS5689351A (en) 1979-12-21 1979-12-21 Preparation of molding sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16726379A JPS5689351A (en) 1979-12-21 1979-12-21 Preparation of molding sand

Publications (2)

Publication Number Publication Date
JPS5689351A true JPS5689351A (en) 1981-07-20
JPS6342531B2 JPS6342531B2 (en) 1988-08-24

Family

ID=15846485

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16726379A Granted JPS5689351A (en) 1979-12-21 1979-12-21 Preparation of molding sand

Country Status (1)

Country Link
JP (1) JPS5689351A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223601A (en) * 1975-08-18 1977-02-22 Hitachi Ltd Flat coil armature

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223601A (en) * 1975-08-18 1977-02-22 Hitachi Ltd Flat coil armature

Also Published As

Publication number Publication date
JPS6342531B2 (en) 1988-08-24

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