Provided is a method for welding an accessory part made of a thermoplastic resin to a parison which is being molded into a tank body. The method includes steps of: forming the accessory part to include an annular portion having an annular shape and a plurality of projections each projecting from the annual portion in a radially inward direction; and pressing the annular portion and the projections into the parison to be welded to the parison. Also provided is a welding structure of a tank body made of a resin and an accessory part made of a thermoplastic resin and welded to a wall surface of the tank body. The accessory part includes: an annular portion having an annular shape; and a plurality of projections each projecting from the annular portion in a radially inward direction. The annular portion and the plurality of projections are welded to the wall surface.


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    Title :

    Welding method and welding structure


    Contributors:

    Publication date :

    2019-10-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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