Resin mould

A resin mold (2) (e.g. for shaping a sheet) has a surface layer (5) formed on the molding surface of a main body (10) from a thermosetting resin (7) and containing fine particles of silicon carbide (6). The surface layer can be formed simply by thermosetting the resin without calling for any plating...

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Bibliographic Details
Main Authors HIROE HASHIMOTO, TAMIO FURUYA, SATORU YAMADA, KENICHI CYUJO, KAZUSHIRO WAKABAYASHI
Format Patent
LanguageEnglish
Published 02.08.2000
Edition7
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 resin mold (2) (e.g. for shaping a sheet) has a surface layer (5) formed on the molding surface of a main body (10) from a thermosetting resin (7) and containing fine particles of silicon carbide (6). The surface layer can be formed simply by thermosetting the resin without calling for any plating, so that the mold can be made in a short time. The high hardness of silicon carbide gives a high wear resistance to the surface layer. The main body is formed from a thermosetting resin (14) and contains metal particles (e.g. steel balls) (12). The steel balls are equal in diameter and every two adjoining balls are in contact with each other to improve heat conduction. An intermediate layer may be formed on the moulding surface of the main body from a thermosetting resin containing pieces of a non woven metal fabric. The intermediate layer may have a coefficient of thermal expansion lower than that of a surface layer of a thermosetting resin formed on the intermediate layer and higher than that of the main body 10. A process of making the mould is also disclosed.
Bibliography:Application Number: GB19990029550