JPS5739056A - Mold making method - Google Patents

Mold making method

Info

Publication number
JPS5739056A
JPS5739056A JP11624480A JP11624480A JPS5739056A JP S5739056 A JPS5739056 A JP S5739056A JP 11624480 A JP11624480 A JP 11624480A JP 11624480 A JP11624480 A JP 11624480A JP S5739056 A JPS5739056 A JP S5739056A
Authority
JP
Japan
Prior art keywords
molding
flask
holes
sand
hardening
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
JP11624480A
Other languages
Japanese (ja)
Inventor
Nagato Unosaki
Kazuharu Matsui
Shigehiro Toyoda
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.)
Sintokogio Ltd
Original Assignee
Sintokogio 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 Sintokogio Ltd filed Critical Sintokogio Ltd
Priority to JP11624480A priority Critical patent/JPS5739056A/en
Publication of JPS5739056A publication Critical patent/JPS5739056A/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
    • B22C9/123—Gas-hardening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)

Abstract

PURPOSE:To form a gaseous mold by placing a moding flask on the upper surface of a pattern plate that has a pressure reducing chamber and a vent hole connected to the chamber, filling the space with molding sand, covering the upper surface of the molding flask with a film having fine holes, placing a cover that generates hardening gas on the fine holes, and hardening the molding sand with the hardening gas making the inside of the molding flask negative pressure. CONSTITUTION:A molding flask 8 is placed on the upper surface of a pattern plate 1 that has a pressure reducing chamber 2 and plural vent holes 4 connected to it, and a space made by the molding flask 8 and the pattern plate 1 is filled with molding sand 10. Next, the upper surface of the molding flask 8 is covered with a film sheet 12 having plural fine holes 11 and the holes are covered with a cover 13 that generates hardening gas. Then, a suction device is actuated to make the inside pressure of the molding flask 8 negative through a duct 16 and vent holes 4 and hardening gas is introduced within the flask 8 through the cover 13 and small holes 11. The gas is passed through the molding sand 10 to harden the sand 10.
JP11624480A 1980-08-22 1980-08-22 Mold making method Pending JPS5739056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11624480A JPS5739056A (en) 1980-08-22 1980-08-22 Mold making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11624480A JPS5739056A (en) 1980-08-22 1980-08-22 Mold making method

Publications (1)

Publication Number Publication Date
JPS5739056A true JPS5739056A (en) 1982-03-04

Family

ID=14682348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11624480A Pending JPS5739056A (en) 1980-08-22 1980-08-22 Mold making method

Country Status (1)

Country Link
JP (1) JPS5739056A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51126923A (en) * 1975-04-30 1976-11-05 Mitsubishi Heavy Ind Ltd Method of making mold
JPS5311121A (en) * 1976-07-16 1978-02-01 Taiyo Chuki Kk Continuous moulding apparatus for casting mould

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51126923A (en) * 1975-04-30 1976-11-05 Mitsubishi Heavy Ind Ltd Method of making mold
JPS5311121A (en) * 1976-07-16 1978-02-01 Taiyo Chuki Kk Continuous moulding apparatus for casting mould

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