DIE OR MOULD FOR USE IN FORMING A RUBBER OR PLASTIC MATERIAL

A die or mould for use in forming a rubber or plastic material, and which includes cylindrical filters as air venting means. The filters include a plurality of linear air venting holes of a diameter of from 0.01 mm. to 0.1 mm., passing therethrough and are mounted in through-holes penetrating the di...

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Bibliographic Details
Main Authors HAMAMOTO H,JA, NAKAGAWA N,JA, KIMURA T,JA
Format Patent
LanguageEnglish
Published 16.04.1974
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:A die or mould for use in forming a rubber or plastic material, and which includes cylindrical filters as air venting means. The filters include a plurality of linear air venting holes of a diameter of from 0.01 mm. to 0.1 mm., passing therethrough and are mounted in through-holes penetrating the die or mould body. During forming of the rubber or plastic material in the die or mould, the air trapped is vented to the exterior of the mould through the filters, and the material being moulded does not clot the air venting holes.
Bibliography:Application Number: US19720250630