JPS5677045A - Technique of recycling casting waste sand containing alkali seed to neutral resource through hot air treatment - Google Patents

Technique of recycling casting waste sand containing alkali seed to neutral resource through hot air treatment

Info

Publication number
JPS5677045A
JPS5677045A JP15328079A JP15328079A JPS5677045A JP S5677045 A JPS5677045 A JP S5677045A JP 15328079 A JP15328079 A JP 15328079A JP 15328079 A JP15328079 A JP 15328079A JP S5677045 A JPS5677045 A JP S5677045A
Authority
JP
Japan
Prior art keywords
waste sand
casting waste
technique
hot air
air treatment
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
Application number
JP15328079A
Other languages
Japanese (ja)
Inventor
Yozo Ishizuka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15328079A priority Critical patent/JPS5677045A/en
Publication of JPS5677045A publication Critical patent/JPS5677045A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To recycle the casting waste sand contg. alkali seeds to neutral resources by heat treating the same in air current.
CONSTITUTION: For example, a quartz-made reaction tube is installed into a continuous or batch type heating furnace, and the casting waste sand contg. alkali seeds is packed in the reaction tube. Thence, while air (or carbon dioxide gas) is being flowed into the reaction tube, the sand is heat-treated for more than 1hr at 600°C. Since the contained alkali seeds are fixed (insolubilized) by this treatment, they become neutral and the waste sand is recycled.
COPYRIGHT: (C)1981,JPO&Japio
JP15328079A 1979-11-26 1979-11-26 Technique of recycling casting waste sand containing alkali seed to neutral resource through hot air treatment Pending JPS5677045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15328079A JPS5677045A (en) 1979-11-26 1979-11-26 Technique of recycling casting waste sand containing alkali seed to neutral resource through hot air treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15328079A JPS5677045A (en) 1979-11-26 1979-11-26 Technique of recycling casting waste sand containing alkali seed to neutral resource through hot air treatment

Publications (1)

Publication Number Publication Date
JPS5677045A true JPS5677045A (en) 1981-06-25

Family

ID=15559010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15328079A Pending JPS5677045A (en) 1979-11-26 1979-11-26 Technique of recycling casting waste sand containing alkali seed to neutral resource through hot air treatment

Country Status (1)

Country Link
JP (1) JPS5677045A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017077566A (en) * 2015-10-19 2017-04-27 トヨタ自動車株式会社 Method for reusing core sand
CN106607546A (en) * 2016-08-31 2017-05-03 圣固（江苏）机械有限公司 Coated sand recycling method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52720A (en) * 1975-06-24 1977-01-06 Hitachi Metals Ltd Method and device for regenerating casting sand

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52720A (en) * 1975-06-24 1977-01-06 Hitachi Metals Ltd Method and device for regenerating casting sand

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017077566A (en) * 2015-10-19 2017-04-27 トヨタ自動車株式会社 Method for reusing core sand
CN106607546A (en) * 2016-08-31 2017-05-03 圣固（江苏）机械有限公司 Coated sand recycling method

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