TW277023B - An improved device and process of free foaming injection molding - Google Patents

An improved device and process of free foaming injection molding

Info

Publication number
TW277023B
TW277023B TW083101537A TW83101537A TW277023B TW 277023 B TW277023 B TW 277023B TW 083101537 A TW083101537 A TW 083101537A TW 83101537 A TW83101537 A TW 83101537A TW 277023 B TW277023 B TW 277023B
Authority
TW
Taiwan
Prior art keywords
free foaming
injection molding
mold
improved device
foaming injection
Prior art date
Application number
TW083101537A
Other languages
Chinese (zh)
Inventor
Shyh-Yang Lii
Jiunn-Chin Chen
Wenn-Jong Liang
Tyng-Yeu Lii
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW083101537A priority Critical patent/TW277023B/en
Application granted granted Critical
Publication of TW277023B publication Critical patent/TW277023B/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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling

Abstract

An improved free foaming injection molding process which lets the melted foam plastic go through a non-contact cooling unit as soon as it comes out from the mold. The pre-cooling process can produce a thin surface layer then it continues free foaming in the air section. Finally, go into the cooling shaping mold for shaping. The specific part of the process is the cooling unit next to the mold which can let the foam plastic form a surface layer.
TW083101537A 1994-02-21 1994-02-21 An improved device and process of free foaming injection molding TW277023B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW083101537A TW277023B (en) 1994-02-21 1994-02-21 An improved device and process of free foaming injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW083101537A TW277023B (en) 1994-02-21 1994-02-21 An improved device and process of free foaming injection molding

Publications (1)

Publication Number Publication Date
TW277023B true TW277023B (en) 1996-06-01

Family

ID=51397372

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083101537A TW277023B (en) 1994-02-21 1994-02-21 An improved device and process of free foaming injection molding

Country Status (1)

Country Link
TW (1) TW277023B (en)

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