BE785155A - Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting - Google Patents

Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting

Info

Publication number
BE785155A
BE785155A BE785155A BE785155A BE785155A BE 785155 A BE785155 A BE 785155A BE 785155 A BE785155 A BE 785155A BE 785155 A BE785155 A BE 785155A BE 785155 A BE785155 A BE 785155A
Authority
BE
Belgium
Prior art keywords
orienting
thermoplastic polymer
multiple pass
polymer prior
continuous tubing
Prior art date
Application number
BE785155A
Other languages
French (fr)
Original Assignee
Hercules Inc
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 Hercules Inc filed Critical Hercules Inc
Priority to BE785155A priority Critical patent/BE785155A/en
Publication of BE785155A publication Critical patent/BE785155A/en

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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/68—Ovens specially adapted for heating preforms or parisons

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Oven comprises a first and second chambers with >=2 conduits extending between them. Heater air is supplied to the first chamber, circulated through the conduits to the second chamber and back to the first. Supports, e.g. of PTFE, are provided for an elongate article, e.g. a polypropylene tube to be heated preparatory to blow moulding, in the conduits, and a wheel is provided, at least in the second chamber, to convey the elongate article from one conduit to another.
BE785155A 1972-06-20 1972-06-20 Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting BE785155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE785155A BE785155A (en) 1972-06-20 1972-06-20 Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE785155A BE785155A (en) 1972-06-20 1972-06-20 Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting

Publications (1)

Publication Number Publication Date
BE785155A true BE785155A (en) 1972-10-16

Family

ID=3859845

Family Applications (1)

Application Number Title Priority Date Filing Date
BE785155A BE785155A (en) 1972-06-20 1972-06-20 Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting

Country Status (1)

Country Link
BE (1) BE785155A (en)

Similar Documents

Publication Publication Date Title
JPS57115324A (en) Thermoplastic resin product and its manufacture and its device
DE69210887T2 (en) Process for the production of heat-insulating moldings and moldings which can be produced therewith
ES378174A1 (en) Method and apparatus for processing vitreous melt
FR2190597A1 (en) Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting
BE785155A (en) Multiple pass oven - for heating continuous tubing of thermoplastic polymer prior to orienting
ES344688A1 (en) Pneumatic harness plug assembly or the like
GB1467469A (en) Moulding apparatus
FR2018634A1 (en) Textile articles heat shaped by a fluid
GB1338324A (en) Process for thermal-forming biaxially stretched thermoplastic resin sheet
GB1280116A (en) Device and process for heating or cooling articles
FR2196906B1 (en)
US3677530A (en) Oven for heating continuous tubing
FR2302844A1 (en) Mould for expanded plastic articles - has ducts for heating and cooling fluid
GB1126422A (en) Apparatus for use in forming hollow articles
FR2311642A1 (en) Suction fed hopper for preheating injection moulding materials - using hot air drawn via the injection chamber
GB1487403A (en) Apparatus for heating a pipe made of a crystalline thermoplastic synthetic resinous material
ES441450A1 (en) Manufacture of thin walled plastics material articles
FR2206167A1 (en) Moulding plastic sheet - by transporting sheets through heated fluid to effect softening prior to moulding
ES8506537A1 (en) Apparatus for heat-shrinking thermoplastic sleeves about containers
GB866822A (en) Improvements in the treatment of polymers and copolymers of propylene
FR2067964A5 (en) Blow moulding thermoplastic articles
FR2305292A1 (en) Biaxially oriented hollow moulding with even wall-thickness - heating parison in two stages, axially drawing and expanding in mould
FR2220430A1 (en) Vessel with tubular spout - made of heat-shrinking plastics which is heated with hot air to shrink it onto bottle shaped mandrel
JPH0324347Y2 (en)
FR2256014A1 (en) Heater for vacuum forming thermoplastics sheet - comprising narrow hot air jet applied transversely across moving sheet

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: HERCULES INC.

Effective date: 19910630