SE8902094D0 - SATISFY INJECTION OF GUM PRODUCTS - Google Patents
SATISFY INJECTION OF GUM PRODUCTSInfo
- Publication number
- SE8902094D0 SE8902094D0 SE8902094A SE8902094A SE8902094D0 SE 8902094 D0 SE8902094 D0 SE 8902094D0 SE 8902094 A SE8902094 A SE 8902094A SE 8902094 A SE8902094 A SE 8902094A SE 8902094 D0 SE8902094 D0 SE 8902094D0
- Authority
- SE
- Sweden
- Prior art keywords
- mould
- product
- injection moulding
- rubber mixture
- gum products
- Prior art date
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.
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 true SE8902094D0 (en) | 1989-06-09 |
SE8902094L 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) |
-
1989
- 1989-06-09 SE SE8902094A patent/SE469118B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8902094L (en) | 1990-12-10 |
SE469118B (en) | 1993-05-17 |
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Legal Events
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NUG | Patent has lapsed |
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