JPS56134043A - Frozen mold - Google Patents

Frozen mold

Info

Publication number
JPS56134043A
JPS56134043A JP3677480A JP3677480A JPS56134043A JP S56134043 A JPS56134043 A JP S56134043A JP 3677480 A JP3677480 A JP 3677480A JP 3677480 A JP3677480 A JP 3677480A JP S56134043 A JPS56134043 A JP S56134043A
Authority
JP
Japan
Prior art keywords
mold
hardened
binder
molding
layer
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
JP3677480A
Other languages
Japanese (ja)
Other versions
JPS63141B2 (en
Inventor
Yoshinobu Ohashi
Yoshikazu Wakushima
Yasutaka Ohara
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.)
Kubota Corp
Iwatani Corp
Original Assignee
Kubota Corp
Iwatani Corp
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 Kubota Corp, Iwatani Corp filed Critical Kubota Corp
Priority to JP3677480A priority Critical patent/JPS56134043A/en
Publication of JPS56134043A publication Critical patent/JPS56134043A/en
Publication of JPS63141B2 publication Critical patent/JPS63141B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B22C9/126—Hardening by freezing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE:To considerably prolong the time when a frozen mold can be left standing by penetrating a binder from the mold molding surface thereby forming a hardened shell layer. CONSTITUTION:After molding or after freezing, a binder is coated on at least the molding surface 2 of a mold 1, by spraying, brushing or immersing therein to allow this to penetrate among the sand grains of the mold 1 from the surface, whereby a hardended shell layer 3 is formed. The binder is ordinary water glass, and is rapidly hardened by bringing the water glass into to contact with a gasous CO2. When the mold formed with the hardened layer 3 in this way is left standing in the atmosphere after freezing, the hardened layer 3 plays the role of a heat insulating layer covering the mold 1 and performs the action of retarding the temp. rise of the entire part of the mold 1 from the surface, thereby maintaining the surface stability of the molding surface 2.
JP3677480A 1980-03-19 1980-03-19 Frozen mold Granted JPS56134043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3677480A JPS56134043A (en) 1980-03-19 1980-03-19 Frozen mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3677480A JPS56134043A (en) 1980-03-19 1980-03-19 Frozen mold

Publications (2)

Publication Number Publication Date
JPS56134043A true JPS56134043A (en) 1981-10-20
JPS63141B2 JPS63141B2 (en) 1988-01-05

Family

ID=12479110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3677480A Granted JPS56134043A (en) 1980-03-19 1980-03-19 Frozen mold

Country Status (1)

Country Link
JP (1) JPS56134043A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009202187A (en) * 2008-02-27 2009-09-10 Mayekawa Mfg Co Ltd Frozen mold and molding method therefor
CN106040992A (en) * 2016-08-15 2016-10-26 合肥江淮铸造有限责任公司 Casting sand core paint dipping process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009202187A (en) * 2008-02-27 2009-09-10 Mayekawa Mfg Co Ltd Frozen mold and molding method therefor
CN106040992A (en) * 2016-08-15 2016-10-26 合肥江淮铸造有限责任公司 Casting sand core paint dipping process

Also Published As

Publication number Publication date
JPS63141B2 (en) 1988-01-05

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