JPS6434718A - Blow molding - Google Patents

Blow molding

Info

Publication number
JPS6434718A
JPS6434718A JP62190342A JP19034287A JPS6434718A JP S6434718 A JPS6434718 A JP S6434718A JP 62190342 A JP62190342 A JP 62190342A JP 19034287 A JP19034287 A JP 19034287A JP S6434718 A JPS6434718 A JP S6434718A
Authority
JP
Japan
Prior art keywords
parison
reinforcing member
mandrel
wall
polypropylene
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
JP62190342A
Other languages
Japanese (ja)
Other versions
JPH0655422B2 (en
Inventor
Hiroshi Watanabe
Hidehiko Horibe
Shinsuke Kitabayashi
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.)
Mahle Filter Systems Japan Corp
Original Assignee
Mahle Filter Systems Japan Corp
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 Mahle Filter Systems Japan Corp filed Critical Mahle Filter Systems Japan Corp
Priority to JP62190342A priority Critical patent/JPH0655422B2/en
Publication of JPS6434718A publication Critical patent/JPS6434718A/en
Publication of JPH0655422B2 publication Critical patent/JPH0655422B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B29C49/0411—Means for defining the wall or layer thickness
    • B29C49/04114—Means for defining the wall or layer thickness for keeping constant thickness
    • 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
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2008—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements inside the article
    • 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
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2021—Inserts characterised by the material or type
    • B29C2049/2026—Neck portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/004—Bent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a plastic duct having a flange of high strength, by inserting an apex part of a mandrel in a through-hole of a reinforcing member, placing the reinforcing member in a parison, pressing the inner wall of the parison on the side of the reinforcing member, pressing the parison on the inner wall of a mold by feeding air and molding a specific shape. CONSTITUTION:An apex part 50a of a mandrel 50 is inserted in a through-hole 25 of a reinforcing member injection-molded in advance by using a resin such as polypropylene and so on, and the reinforcing member 26 is thereby held on a flange part 50b of the mandrel 50. The reinforcing member 26 supported on the mandrel 50 is placed in a parison 51 whose cross-section is a ring-shape and made of a resin such as polypropylene and so on. Mold 52 and 53 are pressed on the outer circumference of the parison 51 to press the inner wall 51a of the parison 51 on the side of the reinforcing member 26, and at the same time, air is fed in the parison 51 to form the parison 51 to a specific shape. The molded item is taken out of the molds 52 and 53 and the mandrel 50 and a plastic duct whose flange part is reinforced is thereby easily prepared.
JP62190342A 1987-07-31 1987-07-31 Blow molding method Expired - Lifetime JPH0655422B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190342A JPH0655422B2 (en) 1987-07-31 1987-07-31 Blow molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190342A JPH0655422B2 (en) 1987-07-31 1987-07-31 Blow molding method

Publications (2)

Publication Number Publication Date
JPS6434718A true JPS6434718A (en) 1989-02-06
JPH0655422B2 JPH0655422B2 (en) 1994-07-27

Family

ID=16256600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190342A Expired - Lifetime JPH0655422B2 (en) 1987-07-31 1987-07-31 Blow molding method

Country Status (1)

Country Link
JP (1) JPH0655422B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5514323A (en) * 1992-09-18 1996-05-07 Solvay Automotive, Inc. Method for making a blow-molded fuel tank containing a breathing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5514323A (en) * 1992-09-18 1996-05-07 Solvay Automotive, Inc. Method for making a blow-molded fuel tank containing a breathing system

Also Published As

Publication number Publication date
JPH0655422B2 (en) 1994-07-27

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