APLICAÇÃO DE CÂMARA QUENTE EM MOLDES TERMOPLÁSTICOS

Abstract

Hot chamber technology in thermoplastic injection molds is increasingly used, replacing conventional cold channels. It became necessary to use a hot runner due to the increasing demand of the current market with respect to aesthetics and complexity of injection of plastic products, and also, a larger volume of parts required by the market, considering that being worked in molds with cold channel, the time of each production cycle will be longer, in the case of complex parts that require additional devices in the mold, this time per cycle will be even longer. There is also another aggravating factor, the main one, which is the waste of raw material with the mold branches with a cold channel, this cold channel is responsible for transposing the melted plastic from the injection nozzle to the mold cavities, the material that remains retained in this channel after the extraction of the pieces of the cavity is removed and processed later, this work can be eliminated with the use of a hot chamber.