JPH022691B2 - - Google Patents

Info

Publication number
JPH022691B2
JPH022691B2 JP57008314A JP831482A JPH022691B2 JP H022691 B2 JPH022691 B2 JP H022691B2 JP 57008314 A JP57008314 A JP 57008314A JP 831482 A JP831482 A JP 831482A JP H022691 B2 JPH022691 B2 JP H022691B2
Authority
JP
Japan
Prior art keywords
resin
parison
mold
tube
inner layer
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.)
Expired - Lifetime
Application number
JP57008314A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58126122A (ja
Inventor
Naoyuki Iwata
Yasuo Ezaki
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Monsanto Chemical Co
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 Mitsubishi Monsanto Chemical Co filed Critical Mitsubishi Monsanto Chemical Co
Priority to JP57008314A priority Critical patent/JPS58126122A/ja
Publication of JPS58126122A publication Critical patent/JPS58126122A/ja
Publication of JPH022691B2 publication Critical patent/JPH022691B2/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/082—Diameter
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • 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
    • B29L2009/00—Layered products
    • 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
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Laminated Bodies (AREA)
JP57008314A 1982-01-22 1982-01-22 二重壁管体の製造方法 Granted JPS58126122A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57008314A JPS58126122A (ja) 1982-01-22 1982-01-22 二重壁管体の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57008314A JPS58126122A (ja) 1982-01-22 1982-01-22 二重壁管体の製造方法

Publications (2)

Publication Number Publication Date
JPS58126122A JPS58126122A (ja) 1983-07-27
JPH022691B2 true JPH022691B2 (cg-RX-API-DMAC7.html) 1990-01-19

Family

ID=11689687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57008314A Granted JPS58126122A (ja) 1982-01-22 1982-01-22 二重壁管体の製造方法

Country Status (1)

Country Link
JP (1) JPS58126122A (cg-RX-API-DMAC7.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3646858B2 (ja) * 1999-08-09 2005-05-11 株式会社ジェイエスピー 多層ポリプロピレン系樹脂発泡成形体及びその製造方法、並びに容器
JP6773967B2 (ja) * 2016-08-30 2020-10-21 キョーラク株式会社 発泡成形体の製造方法

Also Published As

Publication number Publication date
JPS58126122A (ja) 1983-07-27

Similar Documents

Publication Publication Date Title
US4136220A (en) Process for the molding of plastic structural web and the resulting articles
US4247515A (en) Process for molding of plastic structural web articles
JP3814032B2 (ja) 成形品
US3299192A (en) Method of extruding a foamed plastic tube having internal and external skins thereon
JP7282162B2 (ja) 三次元物体を調製するための３ｄ印刷システム
CN1852797B (zh) 热塑性树脂发泡性粒子的制造方法
US4327053A (en) Blow molding hollow articles from polyolefins containing anisotropic filler
JPH0615722A (ja) 外皮内に発泡性コアを有する高分子材料物体の製造方法及びその方法に使用される装置
TWI814895B (zh) 用於製備至少部分由膨脹聚合物製成三維物件之系統及方法、以及三維物件
JPH05500779A (ja) 気泡質プラスチックの製造方法
EP2646238B1 (en) Hollow article of variable wall structure density
US4022557A (en) Apparatus for making structural foam profiles
JPH022691B2 (cg-RX-API-DMAC7.html)
US3248462A (en) Method for producing foamed sheet material having essentially equal tensile properties
JP7060782B2 (ja) 発泡成形体の製造方法
Taskin Polymeric Foams: Materials, Technology, and Applications
EP2633966B1 (en) Foam duct
JP2002292722A (ja) 押出発泡複合体の製造方法及び装置
JP3587696B2 (ja) 押し出し発泡複合体の製造方法及び発泡複合体
JP3689160B2 (ja) 断熱構造部材の製造方法およびそれにより得られる部材
JP4256536B2 (ja) 中空発泡ブロー成形体の製造方法
US20190030769A1 (en) Method for producing a climate control box
JP7440743B2 (ja) 発泡成形体
KR100556149B1 (ko) 조립식 배관자재 및 이의 제조방법
JPH08224746A (ja) 区画を有する発泡複合体の製造方法