JPS5586655A - Mold producing apparatus by cold box method - Google Patents

Mold producing apparatus by cold box method

Info

Publication number
JPS5586655A
JPS5586655A JP16052878A JP16052878A JPS5586655A JP S5586655 A JPS5586655 A JP S5586655A JP 16052878 A JP16052878 A JP 16052878A JP 16052878 A JP16052878 A JP 16052878A JP S5586655 A JPS5586655 A JP S5586655A
Authority
JP
Japan
Prior art keywords
mold
hardening
suction
gas
exhaust
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
JP16052878A
Other languages
Japanese (ja)
Inventor
Masakazu Yamatani
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.)
KOEI SANGYO
SEIWA GIKEN YUUGEN
Koei Sangyo Inc
Seiwa Giken KK
Original Assignee
KOEI SANGYO
SEIWA GIKEN YUUGEN
Koei Sangyo Inc
Seiwa Giken 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 KOEI SANGYO, SEIWA GIKEN YUUGEN, Koei Sangyo Inc, Seiwa Giken KK filed Critical KOEI SANGYO
Priority to JP16052878A priority Critical patent/JPS5586655A/en
Publication of JPS5586655A publication Critical patent/JPS5586655A/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)

Abstract

PURPOSE:To enable molds to be produced readily with inexpensive equipment by providing a suction-exhaust device and maintaining the inside of hardening chamber at negative pressure in the mold producing apparatus by a cold box method involving covering molding sand surfaces with polyurethane prepolymer. CONSTITUTION:The mold 22 molded from silica sand with polyurethane prepolymer as a binder is placed on a base 25 and is conveyed onto the roller conveyor 24 in a hardening chamber, where a perforated plate 26 is placed thereon. Thence, a piston 15 is lowered by the operation of a fluid pressure cylinder 11 and a gas feeder 16 for hardening is pressed onto the perforated plate. Next, the closing plate is closed by the operation of a closing device 4, after which the inside of the hardening chamber is put under negative pressure by a suction-exhaust device 14. In this state, hardening amine gas goes through a gas feed port 12, flexible pipe 17 and orifice 20 and filters and diffuses in the mold 22, whereby the mold is hardened. The exhaust gas and the air having been sucked through spacings passes through an exhaust pipe 13 and is exhausted by the suction-exaust device 14 and is released into the atmosphere through an amine absorption tower.
JP16052878A 1978-12-25 1978-12-25 Mold producing apparatus by cold box method Pending JPS5586655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16052878A JPS5586655A (en) 1978-12-25 1978-12-25 Mold producing apparatus by cold box method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16052878A JPS5586655A (en) 1978-12-25 1978-12-25 Mold producing apparatus by cold box method

Publications (1)

Publication Number Publication Date
JPS5586655A true JPS5586655A (en) 1980-06-30

Family

ID=15716905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16052878A Pending JPS5586655A (en) 1978-12-25 1978-12-25 Mold producing apparatus by cold box method

Country Status (1)

Country Link
JP (1) JPS5586655A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273015A (en) * 2013-05-13 2013-09-04 山东建筑大学 Single-column sodium silicate-bonded sand molding machine and molding technology thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273015A (en) * 2013-05-13 2013-09-04 山东建筑大学 Single-column sodium silicate-bonded sand molding machine and molding technology thereof

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