JPS5727733A - Ventilation in manufacturing process of building material - Google Patents

Ventilation in manufacturing process of building material

Info

Publication number
JPS5727733A
JPS5727733A JP10328580A JP10328580A JPS5727733A JP S5727733 A JPS5727733 A JP S5727733A JP 10328580 A JP10328580 A JP 10328580A JP 10328580 A JP10328580 A JP 10328580A JP S5727733 A JPS5727733 A JP S5727733A
Authority
JP
Japan
Prior art keywords
upper mold
mold material
air passage
air
ventilation
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
JP10328580A
Other languages
Japanese (ja)
Inventor
Hiroshi Morioka
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.)
NISSEI BIRUDO KOGYO KK
Nissei Build Kogyo Co Ltd
Original Assignee
NISSEI BIRUDO KOGYO KK
Nissei Build Kogyo Co 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 NISSEI BIRUDO KOGYO KK, Nissei Build Kogyo Co Ltd filed Critical NISSEI BIRUDO KOGYO KK
Priority to JP10328580A priority Critical patent/JPS5727733A/en
Publication of JPS5727733A publication Critical patent/JPS5727733A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/588—Moulds with means for venting, e.g. releasing foaming gas

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To perform complete removal of air and gas when urethane foams by a method wherein excluding the surface part in the middle of a corrugated cardboard attached to the back of an upper mold material the back part and the partition part thereof are cut off to form an air passage. CONSTITUTION:Excluding the surface material 3 of the corrugated cardboard material attached to the back of an upper mold material 2 the back material 4 and the buffering partition material 5 thereof are cut off to form an air passage 7. Then, above the lower mold material 1 filled with styrene-particles-mixing urethane an upper mold material 2 is mounted and heated to let the urethane foam. The air and gas generated are exhausted outward through a vent 6 provided by the air passage 7 and a vent 6.
JP10328580A 1980-07-28 1980-07-28 Ventilation in manufacturing process of building material Pending JPS5727733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10328580A JPS5727733A (en) 1980-07-28 1980-07-28 Ventilation in manufacturing process of building material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10328580A JPS5727733A (en) 1980-07-28 1980-07-28 Ventilation in manufacturing process of building material

Publications (1)

Publication Number Publication Date
JPS5727733A true JPS5727733A (en) 1982-02-15

Family

ID=14350042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10328580A Pending JPS5727733A (en) 1980-07-28 1980-07-28 Ventilation in manufacturing process of building material

Country Status (1)

Country Link
JP (1) JPS5727733A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102814892A (en) * 2012-08-09 2012-12-12 河南平高电气股份有限公司 Epoxy casting part manufacturing method and epoxy casting insulator manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102814892A (en) * 2012-08-09 2012-12-12 河南平高电气股份有限公司 Epoxy casting part manufacturing method and epoxy casting insulator manufacturing method
CN102814892B (en) * 2012-08-09 2015-08-19 河南平高电气股份有限公司 Epoxy resin casting workpiece manufacture method and epoxy casting insulator manufacture method

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