JPS558304A - Binder for baked mold - Google Patents

Binder for baked mold

Info

Publication number
JPS558304A
JPS558304A JP7868778A JP7868778A JPS558304A JP S558304 A JPS558304 A JP S558304A JP 7868778 A JP7868778 A JP 7868778A JP 7868778 A JP7868778 A JP 7868778A JP S558304 A JPS558304 A JP S558304A
Authority
JP
Japan
Prior art keywords
binder
mold
baked
colloidal
core
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
JP7868778A
Other languages
Japanese (ja)
Other versions
JPS5523708B2 (en
Inventor
Junji Sakai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7868778A priority Critical patent/JPS558304A/en
Publication of JPS558304A publication Critical patent/JPS558304A/en
Publication of JPS5523708B2 publication Critical patent/JPS5523708B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE: The binder for use of the baked mold, suitable for preparation of the thin mold and the core, which are required high strength, obtained by mixing a specified amount of colloidal alumina and colloidal ailica.
CONSTITUTION: The binder for use of the baked mold, consisting of 60W95% colloidal alumina and 5W40% colloidal silica (pH 3.0W4.0). This binder does not cause the gelatinization even if it is left off the service for about three years after mixing, so that this binder can be stored in a large lot of mixed state. This binder is added and mixed with the aggregate, and the molding material is prepared, which is then used in forming the core, the outer mold, etc., that are baked to finish. By employing this mold, the cast product with smooth skin and high dimensional accuracy is easily manufactured.
COPYRIGHT: (C)1980,JPO&Japio
JP7868778A 1978-06-30 1978-06-30 Binder for baked mold Granted JPS558304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7868778A JPS558304A (en) 1978-06-30 1978-06-30 Binder for baked mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7868778A JPS558304A (en) 1978-06-30 1978-06-30 Binder for baked mold

Publications (2)

Publication Number Publication Date
JPS558304A true JPS558304A (en) 1980-01-21
JPS5523708B2 JPS5523708B2 (en) 1980-06-24

Family

ID=13668771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7868778A Granted JPS558304A (en) 1978-06-30 1978-06-30 Binder for baked mold

Country Status (1)

Country Link
JP (1) JPS558304A (en)

Also Published As

Publication number Publication date
JPS5523708B2 (en) 1980-06-24

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