JPS5728653A - Manufacture of frozen mold - Google Patents

Manufacture of frozen mold

Info

Publication number
JPS5728653A
JPS5728653A JP10404480A JP10404480A JPS5728653A JP S5728653 A JPS5728653 A JP S5728653A JP 10404480 A JP10404480 A JP 10404480A JP 10404480 A JP10404480 A JP 10404480A JP S5728653 A JPS5728653 A JP S5728653A
Authority
JP
Japan
Prior art keywords
refrigerant
molding
narrow holes
molding sand
frozen
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
JP10404480A
Other languages
Japanese (ja)
Inventor
Susumu Minowa
Mitsuo Ninomiya
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP10404480A priority Critical patent/JPS5728653A/en
Publication of JPS5728653A publication Critical patent/JPS5728653A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To reduce consumption of the refrigerant when frozen molds are manufactured, by penetrating the refrigerant into molds made of molding sand with a pressure from narrow holes or tubes installed in the cover plate of patterns and molds. CONSTITUTION:A pattern 3 of casting having a plural number of narrow holes 4 connected to a conduit 2, is placed on a molding board 1 provided with the counduit 2. Then, this is set in a molding flask 5 and molding sand containing 3-5% moisture is charged in the space between the model 3 and the molding flask 5. A covering plate 6 provided with another counduit 7 and numerous branch tubes 8 having many narrow holes 9, is put on the molding flask 5. A refrigerant, such as liquid nitrogen, etc., is compressedly supplied through the conduits 2 and 7 and the refrigerant is introduced into the molding sand through the narrow holes 4 and narrow holes 9 of branch tubes 8. Thus a frozen mold is manufactured by freezing the formed body made of molding sand and containing some % of moisture. Because the mold is frozen from the inside by penetrating the refrigerant into the mold made of molding sand, the effective coefficient of utilization of the refrigerant becomes higher and it can be used economically.
JP10404480A 1980-07-28 1980-07-28 Manufacture of frozen mold Pending JPS5728653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10404480A JPS5728653A (en) 1980-07-28 1980-07-28 Manufacture of frozen mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10404480A JPS5728653A (en) 1980-07-28 1980-07-28 Manufacture of frozen mold

Publications (1)

Publication Number Publication Date
JPS5728653A true JPS5728653A (en) 1982-02-16

Family

ID=14370211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10404480A Pending JPS5728653A (en) 1980-07-28 1980-07-28 Manufacture of frozen mold

Country Status (1)

Country Link
JP (1) JPS5728653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566687A1 (en) * 1984-06-27 1986-01-03 Air Liquide DEVICE FOR MANUFACTURING FROZEN MOLDS OR MOLDING CORES
CN110883316A (en) * 2019-12-05 2020-03-17 通裕重工股份有限公司 In-vitro pouring conformal sand box and manufacturing method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566687A1 (en) * 1984-06-27 1986-01-03 Air Liquide DEVICE FOR MANUFACTURING FROZEN MOLDS OR MOLDING CORES
US4644995A (en) * 1984-06-27 1987-02-24 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Device for fabricating frozen moulding moulds or cores
AU573499B2 (en) * 1984-06-27 1988-06-09 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Fabricating frozen moulds or cores
CN110883316A (en) * 2019-12-05 2020-03-17 通裕重工股份有限公司 In-vitro pouring conformal sand box and manufacturing method thereof

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