JPS577351A - Production of refrigerated mold - Google Patents

Production of refrigerated mold

Info

Publication number
JPS577351A
JPS577351A JP8044180A JP8044180A JPS577351A JP S577351 A JPS577351 A JP S577351A JP 8044180 A JP8044180 A JP 8044180A JP 8044180 A JP8044180 A JP 8044180A JP S577351 A JPS577351 A JP S577351A
Authority
JP
Japan
Prior art keywords
sand
mold
molding
casting
pattern
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
JP8044180A
Other languages
Japanese (ja)
Inventor
Hideo Hirano
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.)
MEITO KOGYO KK
MEITOU KOGYO KK
Original Assignee
MEITO KOGYO KK
MEITOU KOGYO KK
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 MEITO KOGYO KK, MEITOU KOGYO KK filed Critical MEITO KOGYO KK
Priority to JP8044180A priority Critical patent/JPS577351A/en
Publication of JPS577351A publication Critical patent/JPS577351A/en
Pending 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

Abstract

PURPOSE:To produce a refrigerated mold under high cooling efficiency by burying perforated pipes into the molding sand of the mold, and blowing liquid nitrogen from the pores into the molding sand in producing the refrigerated mold. CONSTITUTION:Fresh sand and recovered sand are compounded with an agitator 1, and the molding sand 21 which is so controlled as to contain 3-4% water is prepd. This sand 21 is packed in a molding flask box 3 containing a casting pattern 2. In this case, perforated pipes 4 pierced with multiple small pores 4a are beforehand suspended on both sides of the pattern 2. After then sand 21 is packed therein, liquid nitrogen 22 is fed into the pipes 4 through two branch pipes 6 by a distributor 5, and is blown through the pores 4a into the molding sand, thereby refrigerating the mold 7. After the pattern 2 is removed, molten metal is poured, and a casting is prepd. Since no binders are used for the sand 21, knocking-out after the casting is extremely easy, and the rate of recovery of the molding sand is extremely high.
JP8044180A 1980-06-14 1980-06-14 Production of refrigerated mold Pending JPS577351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8044180A JPS577351A (en) 1980-06-14 1980-06-14 Production of refrigerated mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8044180A JPS577351A (en) 1980-06-14 1980-06-14 Production of refrigerated mold

Publications (1)

Publication Number Publication Date
JPS577351A true JPS577351A (en) 1982-01-14

Family

ID=13718339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8044180A Pending JPS577351A (en) 1980-06-14 1980-06-14 Production of refrigerated mold

Country Status (1)

Country Link
JP (1) JPS577351A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441229A (en) * 1977-09-02 1979-04-02 W Eichi Buusu Ando Co Ltd Method of making mold

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441229A (en) * 1977-09-02 1979-04-02 W Eichi Buusu Ando Co Ltd Method of making mold

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