JPS54120417A - Foaming thermal contraction tube - Google Patents

Foaming thermal contraction tube

Info

Publication number
JPS54120417A
JPS54120417A JP2748078A JP2748078A JPS54120417A JP S54120417 A JPS54120417 A JP S54120417A JP 2748078 A JP2748078 A JP 2748078A JP 2748078 A JP2748078 A JP 2748078A JP S54120417 A JPS54120417 A JP S54120417A
Authority
JP
Japan
Prior art keywords
tube
foaming
heated
thermal contraction
pressure
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
JP2748078A
Other languages
Japanese (ja)
Other versions
JPS5645372B2 (en
Inventor
Takashi Tominaga
Tadahiro Rokushiya
Hideshi Asoshina
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.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial 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 Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP2748078A priority Critical patent/JPS54120417A/en
Publication of JPS54120417A publication Critical patent/JPS54120417A/en
Publication of JPS5645372B2 publication Critical patent/JPS5645372B2/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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Abstract

PURPOSE:To prevent the remaining of bubbles between the tube and the object to be covered by providing the multi number of piercing holes which are to be clogged by heating and foaming on the pipe wall. CONSTITUTION:The foaming tube 3 is fitted in the pressure pipe 2 with a pressure port 1, and the tube 3 is heated to be softened at the temperature below the resolution temperture of the foaming agent. The appropriate kind of gas is injected into the tube 4 by pressure from the pressure port 1 to enlarge the diameter of the tube 3 until it touches the inside wall surface 5 of the pressure pipe 2. Then, the foaming thermal contraxtion tube is completed by making multi number of piercing holes in the wall of the foaming tube 3 with the thermal contractibility given by the diameter-enlarging treatment. When it is used, the foaming thermal contraction tube is to be heated to the softening point of the thermo-plastic polymer so that it is heated to start foaming after covering the object with the foaming thermal contraction tube. In that case, the tube contracts and starts foaming, adhering tightly to the object, and the air escapes from the piercing holes which are clogged when the object is covered by the tube in the end.
JP2748078A 1978-03-09 1978-03-09 Foaming thermal contraction tube Granted JPS54120417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2748078A JPS54120417A (en) 1978-03-09 1978-03-09 Foaming thermal contraction tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2748078A JPS54120417A (en) 1978-03-09 1978-03-09 Foaming thermal contraction tube

Publications (2)

Publication Number Publication Date
JPS54120417A true JPS54120417A (en) 1979-09-19
JPS5645372B2 JPS5645372B2 (en) 1981-10-26

Family

ID=12222276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2748078A Granted JPS54120417A (en) 1978-03-09 1978-03-09 Foaming thermal contraction tube

Country Status (1)

Country Link
JP (1) JPS54120417A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127639A (en) * 1980-03-11 1981-10-06 Nitto Electric Ind Co Ltd Molded article of expandable resin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0364067U (en) * 1989-10-23 1991-06-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127639A (en) * 1980-03-11 1981-10-06 Nitto Electric Ind Co Ltd Molded article of expandable resin

Also Published As

Publication number Publication date
JPS5645372B2 (en) 1981-10-26

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