JPS578129A - Manufacture of heat insulating box - Google Patents

Manufacture of heat insulating box

Info

Publication number
JPS578129A
JPS578129A JP8225380A JP8225380A JPS578129A JP S578129 A JPS578129 A JP S578129A JP 8225380 A JP8225380 A JP 8225380A JP 8225380 A JP8225380 A JP 8225380A JP S578129 A JPS578129 A JP S578129A
Authority
JP
Japan
Prior art keywords
wall surface
reinforcing plate
insulating material
component part
air bubbles
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
JP8225380A
Other languages
Japanese (ja)
Other versions
JPS6344529B2 (en
Inventor
Teruyoshi Wakumizu
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP8225380A priority Critical patent/JPS578129A/en
Publication of JPS578129A publication Critical patent/JPS578129A/en
Publication of JPS6344529B2 publication Critical patent/JPS6344529B2/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
    • B29C44/3411—Relieving stresses
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Thermal Insulation (AREA)

Abstract

PURPOSE:To prevent wall surfaces from being deformed after an expanding process is finished, by a method wherein a component part to constitute a passage resistance to an expandable heat insulating material is fitted to a wall surface on one side, while a reinforcing plate is provided for a wall surface on the other side, and air bubbles generated in the insulating material during a foaming process are caused to remain between the insulating material and the reinforcing plate. CONSTITUTION:An inner box 2 fitted with a cooler 7 on its outside peripheral walls and with the component part 9 on the wall surface 2a on one side thereof is connected by an ornamental frame 4 to an outer box 3 which is provided with the reinforcing plate 10 closely contacted to a wall surface 3a thereof. An expandable liquid is poured into the space 5 formed between the boxes 2, 3 through a pouring hole 13. The liquid foames through expansion under the heating effect of heated jigs 11, 12 and the component part 9 constitutes a flow resistance to the expandable insulating material 6 thus foaming. The air bubbles generated in the material 6 is not completely discharged and they remain as an air collection 16 between the material 6 and the reinforcing plate 10. The deformation of the wall surface 3a accompanied by the change of volume of the air bubbles which are contracted due to the lowering of the temperature can be prevented by the reinforcing plate 10.
JP8225380A 1980-06-17 1980-06-17 Manufacture of heat insulating box Granted JPS578129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8225380A JPS578129A (en) 1980-06-17 1980-06-17 Manufacture of heat insulating box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8225380A JPS578129A (en) 1980-06-17 1980-06-17 Manufacture of heat insulating box

Publications (2)

Publication Number Publication Date
JPS578129A true JPS578129A (en) 1982-01-16
JPS6344529B2 JPS6344529B2 (en) 1988-09-06

Family

ID=13769269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8225380A Granted JPS578129A (en) 1980-06-17 1980-06-17 Manufacture of heat insulating box

Country Status (1)

Country Link
JP (1) JPS578129A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723598A (en) * 1983-03-02 1988-02-09 Mitsubishi Denki Kabushiki Kaisha Warming panel
US5985189A (en) * 1992-07-17 1999-11-16 Whirlpool Corporation Method of molding using an insulated wiring harness for a domestic refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723598A (en) * 1983-03-02 1988-02-09 Mitsubishi Denki Kabushiki Kaisha Warming panel
US5985189A (en) * 1992-07-17 1999-11-16 Whirlpool Corporation Method of molding using an insulated wiring harness for a domestic refrigerator

Also Published As

Publication number Publication date
JPS6344529B2 (en) 1988-09-06

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