A resin molded piece is made from a crystalline resin and is molded by filling a molding space 36 which is defined between a movable mold 32 and a fixed mold 34 with the resin. The resin molded piece has a designed surface 18a on to which a surface of the movable mold 32 is transferred and a non-designed surface 18b on to which a surface of the fixed mold 34 is transferred. The designed surface 18a includes a mirror surface portion 18a. Center line average roughnesses Ra of the mirror surface portion 18c and the non-designed surface 18b are both 0.5 μm or smaller. According to the resin molded piece and a fabrication method therefor, the surface roughness of the designed surface can be reduced while restricting a reduction in productivity.


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    Title :

    Resin molded component and method for manufacturing resin molded component


    Contributors:

    Publication date :

    2019-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS



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