JPS574373A - Production of casting - Google Patents

Production of casting

Info

Publication number
JPS574373A
JPS574373A JP7757580A JP7757580A JPS574373A JP S574373 A JPS574373 A JP S574373A JP 7757580 A JP7757580 A JP 7757580A JP 7757580 A JP7757580 A JP 7757580A JP S574373 A JPS574373 A JP S574373A
Authority
JP
Japan
Prior art keywords
internal structure
mold
sprue
molten metal
cold gas
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
JP7757580A
Other languages
Japanese (ja)
Inventor
Susumu Iwatsuki
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP7757580A priority Critical patent/JPS574373A/en
Publication of JPS574373A publication Critical patent/JPS574373A/en
Pending legal-status Critical Current

Links

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

Abstract

PURPOSE: To quickly cool and solidify the teemed molten metal and produce a casting having dense internal structure by beforehand bringing a mold into contact with an inert refrigerant of nonoxidative type.
CONSTITUTION: A sprue 3 provided with a pouring cup 4 is provided to a mold material 1 reinforced with a molding flask 2, and this sprue 3 is communicated with a mold cavity part 6 by way of a runner 5. Evaporated gaseous CO2 or N2 is introduced into the cavity part 6 through a cold gas lead-in pipe 8 opening in the cup 4, to cool the same and to expell the O2 existing in the void parts among the sand particles of the internal structure thereof, thereby forming a nonoxidative atmosphere. It is preferable to carry out the introduction of this cold gas in large excess until the inside surface of the material 1 attains temps. below room temp. Thereby, the teemed molten metal is rapidly cooled, and the cast product of dense internal structure and superior mechanical characteristics is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP7757580A 1980-06-09 1980-06-09 Production of casting Pending JPS574373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7757580A JPS574373A (en) 1980-06-09 1980-06-09 Production of casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7757580A JPS574373A (en) 1980-06-09 1980-06-09 Production of casting

Publications (1)

Publication Number Publication Date
JPS574373A true JPS574373A (en) 1982-01-09

Family

ID=13637789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7757580A Pending JPS574373A (en) 1980-06-09 1980-06-09 Production of casting

Country Status (1)

Country Link
JP (1) JPS574373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289680A (en) * 2014-10-30 2015-01-21 济南鑫杰机械制造有限公司 Forming box for small-sized molding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289680A (en) * 2014-10-30 2015-01-21 济南鑫杰机械制造有限公司 Forming box for small-sized molding

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