JPS57100036A - Method and apparatus for vapor economizing in foamed molding - Google Patents

Method and apparatus for vapor economizing in foamed molding

Info

Publication number
JPS57100036A
JPS57100036A JP55176288A JP17628880A JPS57100036A JP S57100036 A JPS57100036 A JP S57100036A JP 55176288 A JP55176288 A JP 55176288A JP 17628880 A JP17628880 A JP 17628880A JP S57100036 A JPS57100036 A JP S57100036A
Authority
JP
Japan
Prior art keywords
steam
tank
mold
molding
low temperature
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.)
Granted
Application number
JP55176288A
Other languages
Japanese (ja)
Other versions
JPH0137258B2 (en
Inventor
Hisatoshi Fukui
Akio Takahashi
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP55176288A priority Critical patent/JPS57100036A/en
Publication of JPS57100036A publication Critical patent/JPS57100036A/en
Publication of JPH0137258B2 publication Critical patent/JPH0137258B2/ja
Granted 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To improve the efficient utilization of waste heat in foamable molding of the resin particle, by supplying hot waste water from steam drain, low temperature steam etc. to the steam chamber of the mold and also utilizing it for preheating of the compressed air used for molding. CONSTITUTION:Steam drain and low temperature steam formed during heating operation and hot waste water recovered during initial cooling operation are put together to hot water and recovered to the tank 23. This is supplied to the steam chamber 5, 6 of the mold by the air pressure via the conduits 14, 10 and the pressure in the tank is returned to the atmospheric pressure by closing the valves 12, 21 and opening the valve 22. Also, compressed air is preheated by the heat exchanger 24 in the tank 23 and utilized for the process of filling the cavity 7 with foamable thermoplastic resin particle, draining of residual water in the mold via the valve 13 and releasing of the molded article.
JP55176288A 1980-12-12 1980-12-12 Method and apparatus for vapor economizing in foamed molding Granted JPS57100036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55176288A JPS57100036A (en) 1980-12-12 1980-12-12 Method and apparatus for vapor economizing in foamed molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55176288A JPS57100036A (en) 1980-12-12 1980-12-12 Method and apparatus for vapor economizing in foamed molding

Publications (2)

Publication Number Publication Date
JPS57100036A true JPS57100036A (en) 1982-06-22
JPH0137258B2 JPH0137258B2 (en) 1989-08-04

Family

ID=16010959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55176288A Granted JPS57100036A (en) 1980-12-12 1980-12-12 Method and apparatus for vapor economizing in foamed molding

Country Status (1)

Country Link
JP (1) JPS57100036A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5660228A (en) * 1979-10-23 1981-05-25 Toyo Kikai Kinzoku Kk Heating method for mold in foam molding machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5660228A (en) * 1979-10-23 1981-05-25 Toyo Kikai Kinzoku Kk Heating method for mold in foam molding machine

Also Published As

Publication number Publication date
JPH0137258B2 (en) 1989-08-04

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