SE8902094L - SATISFY INJECTION OF GUM PRODUCTS - Google Patents

SATISFY INJECTION OF GUM PRODUCTS

Info

Publication number
SE8902094L
SE8902094L SE8902094A SE8902094A SE8902094L SE 8902094 L SE8902094 L SE 8902094L SE 8902094 A SE8902094 A SE 8902094A SE 8902094 A SE8902094 A SE 8902094A SE 8902094 L SE8902094 L SE 8902094L
Authority
SE
Sweden
Prior art keywords
mould
product
injection moulding
rubber mixture
gum products
Prior art date
Application number
SE8902094A
Other languages
Swedish (sv)
Other versions
SE8902094D0 (en
SE469118B (en
Inventor
O Nordin
Original Assignee
Forsheda Ab
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 Forsheda Ab filed Critical Forsheda Ab
Priority to SE8902094A priority Critical patent/SE469118B/en
Publication of SE8902094D0 publication Critical patent/SE8902094D0/en
Publication of SE8902094L publication Critical patent/SE8902094L/en
Publication of SE469118B publication Critical patent/SE469118B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/02—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of crude rubber, gutta-percha, or similar substances
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

A method for the injection moulding of rubber products, the following combination of measures being taken to shorten the precuring time in the mould which is minimally required to allow a dimensionally stable and substantially pore-free product to be removed from the mould, which product is then post-cured in a manner which is known per se: - a moisture-absorbing agent, for example calcium oxide, is added to the rubber mixture prior to the injection moulding, - before the rubber mixture is introduced into the mould cavity, it has to pass through a vacuum zone for the removal of porosity in volatile components producing the end product.
SE8902094A 1989-06-09 1989-06-09 Method pertaining to injection moulding of rubber products SE469118B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8902094A SE469118B (en) 1989-06-09 1989-06-09 Method pertaining to injection moulding of rubber products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8902094A SE469118B (en) 1989-06-09 1989-06-09 Method pertaining to injection moulding of rubber products

Publications (3)

Publication Number Publication Date
SE8902094D0 SE8902094D0 (en) 1989-06-09
SE8902094L true SE8902094L (en) 1990-12-10
SE469118B SE469118B (en) 1993-05-17

Family

ID=20376237

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8902094A SE469118B (en) 1989-06-09 1989-06-09 Method pertaining to injection moulding of rubber products

Country Status (1)

Country Link
SE (1) SE469118B (en)

Also Published As

Publication number Publication date
SE8902094D0 (en) 1989-06-09
SE469118B (en) 1993-05-17

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