JPS55147453A - Venting method of casting in casting - Google Patents

Venting method of casting in casting

Info

Publication number
JPS55147453A
JPS55147453A JP5562879A JP5562879A JPS55147453A JP S55147453 A JPS55147453 A JP S55147453A JP 5562879 A JP5562879 A JP 5562879A JP 5562879 A JP5562879 A JP 5562879A JP S55147453 A JPS55147453 A JP S55147453A
Authority
JP
Japan
Prior art keywords
mold
cavity
opening
gas
casting
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
JP5562879A
Other languages
Japanese (ja)
Inventor
Kikuo Masuda
Katsusuke Shidara
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP5562879A priority Critical patent/JPS55147453A/en
Publication of JPS55147453A publication Critical patent/JPS55147453A/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
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates

Abstract

PURPOSE:To make possible sufficient venting and improve the yield of castings by opening the cavity in a mold to the atmosphere through a porous plug and exhausting and removing the gas of the casting into the atmosphere through said plug. CONSTITUTION:A cavity 2 of the shape conforming to the product is formed in a green sand mold pattern 1 and the cavity 2 opens to the atmosphere through the opening 3 formed in the mold 1 and is held covered with the porous plug 4 bound with relatively coarse particles. The porous plug 4 is composed of the porous refractories (ceramics) which allow the passage of gas but do not allow the passage of molten metal 5. When the molten metal 5 is poured into the cavity 4, the gas evolved in the mold 1 partly passes through the mold 1 and is removed, but the greater portion of the gas passes through the porous plug 4 and is exhausted and removed into the air through the opening 3. At this time, the flow of the molten metal 5 into the opening 3 does not occur.
JP5562879A 1979-05-09 1979-05-09 Venting method of casting in casting Pending JPS55147453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5562879A JPS55147453A (en) 1979-05-09 1979-05-09 Venting method of casting in casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5562879A JPS55147453A (en) 1979-05-09 1979-05-09 Venting method of casting in casting

Publications (1)

Publication Number Publication Date
JPS55147453A true JPS55147453A (en) 1980-11-17

Family

ID=13004038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5562879A Pending JPS55147453A (en) 1979-05-09 1979-05-09 Venting method of casting in casting

Country Status (1)

Country Link
JP (1) JPS55147453A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360049A (en) * 1993-01-07 1994-11-01 Rowe Melvin L Core box vent construction
JP2017013117A (en) * 2015-07-03 2017-01-19 株式会社日伸電工 Molding die, molding method and molding product

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360049A (en) * 1993-01-07 1994-11-01 Rowe Melvin L Core box vent construction
EP0694354A1 (en) * 1993-01-07 1996-01-31 Ford Motor Company Core box vent construction
JP2017013117A (en) * 2015-07-03 2017-01-19 株式会社日伸電工 Molding die, molding method and molding product

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