One-shot plasticizing molding device and process of liquid two-component polyurethane

Abstract

The invention provides a liquid two-component polyurethane primary plasticizing molding device and process. By utilizing the liquid two-component polyurethane primary plasticizing molding device, liquid polyurethane raw materials with two components are subjected to mixing, stirring, primary reaction transportation and secondary pressuring injection molding, and then mixed polyurethane is injected to a molding die for solidification molding to obtain a required product. By utilizing the liquid two-component polyurethane primary plasticizing molding process, heating is not needed, energy sources are saved, the molding product is fast and convenient, and a molding device is simple and reliable.

Description

technical field

[0001] The invention relates to a liquid two-component polyurethane primary plasticizing molding device and process, which is mainly used in the field of liquid two-component polyurethane injection molding. Background technique

[0002] At present, there is no one-time plasticizing molding device and process for liquid two-component polyurethane at home and abroad, that is, the two-component polyurethane is mixed and stirred, extruded once, extruded twice, and then the mixed polyurethane is injected into the molding mold. Curing molding to obtain the desired product, this process is similar to the plastic injection molding process, but the conventional polyurethane injection molding process needs to heat the polyurethane particles to a melting temperature of 200-260 ° C, and then inject the molten polyurethane into the mold through screw extrusion injection Among them, the product is cooled and shaped by cooling the mold. This process requires heating and coo...

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