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JPS55141356A - Mold molding method - Google Patents

Mold molding method

Info

Publication number
JPS55141356A
JPS55141356A JP5185879A JP5185879A JPS55141356A JP S55141356 A JPS55141356 A JP S55141356A JP 5185879 A JP5185879 A JP 5185879A JP 5185879 A JP5185879 A JP 5185879A JP S55141356 A JPS55141356 A JP S55141356A
Authority
JP
Japan
Prior art keywords
sand
molding
compressed air
facing
thence
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
JP5185879A
Other languages
Japanese (ja)
Inventor
Nagato Unosaki
Kazuharu Matsui
Koichi Kanefuji
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 JP5185879A priority Critical patent/JPS55141356A/en
Publication of JPS55141356A publication Critical patent/JPS55141356A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/02—Compacting by pressing devices only
    • B22C15/08—Compacting by pressing devices only involving pneumatic or hydraulic mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

PURPOSE:To enable the obtaining of the mold of good mold surfaces by subsequently charging the facing sand and backing sand of the specified grain sizes into the spacing thence supplying compressed air for the specified time from above the molding sand and letting the same pass through the molding sand. CONSTITUTION:A molding flask 8 is placed on top of a pattern plate 2 and facing sand 10 having been made to the sizes larger than the vent holes 4, 5, 6 of vent plugs is charged into the spacing thus formed to the extent that the pattern part 3 is concealed. Following to this, backing sand 11 is charged at the specified amount to the top surface of this facing sand 10. Thence, a hermetic cover 12 is placed airtightly on the top of the molding flask 8. When compressed air is supplied through this hermetic cap 12, this compressed air flows into the molding flask 8 through a feed hole 13 and passes in the backing sand 11 and facing sand 10, thereby causing the facing sand 10 to deposit densely on the surface of the pattern plate 1. Only the air is then exhausted to the outside through exhaust holes 4, 5, 6. Thence, the compressed air is stopped and the hermetic cover 12 is removed. The molding sand is next squeezed by the compression plate not illustrated.
JP5185879A 1979-04-24 1979-04-24 Mold molding method Pending JPS55141356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5185879A JPS55141356A (en) 1979-04-24 1979-04-24 Mold molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5185879A JPS55141356A (en) 1979-04-24 1979-04-24 Mold molding method

Publications (1)

Publication Number Publication Date
JPS55141356A true JPS55141356A (en) 1980-11-05

Family

ID=12898554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5185879A Pending JPS55141356A (en) 1979-04-24 1979-04-24 Mold molding method

Country Status (1)

Country Link
JP (1) JPS55141356A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438220A (en) * 1977-09-01 1979-03-22 Sintokogio Ltd Method of maiking mold

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438220A (en) * 1977-09-01 1979-03-22 Sintokogio Ltd Method of maiking mold

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