Reaction injection molding technology for automobile spoiler

Abstract

The invention relates to a reaction injection molding technology for an automobile spoiler. The reaction injection molding technology comprises the following steps of 1, removing burrs in an automobile spoiler mold; 2, spraying a release agent in the automobile spoiler mold; 3, wiping the release agent; 7, adjusting the temperature of an upper mold body to be 80+ / -10 DEG C, and adjusting the temperature of a lower mold body to be 90+ / -10 DEG C; 8, carrying out curing and pressure maintaining, wherein the pressure maintaining time is 30+ / -10 s; and 9, opening the upper mold body and the lower mold body (opening the mold) to take out a product, namely the automobile spoiler. According to the reaction injection molding technology, polyether polyol (POLY), weighed isocyanate (ISO) and weighedmineral powder are mixed into liquid in proportion, the mixed liquid is injected into the automobile spoiler mold at the moment of mixing for curing and pressure maintaining so as to form the automobile spoiler, a thin-wall article is easily produced through the steps, the produced automobile spoiler has good coating performance and excellent mechanical properties, the product design is free, andin addition, the equipment and mold cost is low.

Description

technical field [0001] The invention relates to a reaction injection molding process of an automobile spoiler. Background technique [0002] The car spoiler refers to the part similar to the inverted aircraft tail installed on the rear cover of the car. Some cars are equipped with a front spoiler, commonly known as an air dam. Some cars are equipped with side skirts on the upper side, which is also a kind of spoiler. The rear spoiler is actually also known as the "car tail". On the one hand, it adds dynamics to the appearance of the car; on the other hand, its more important role is to effectively reduce the air resistance generated by the vehicle at high speed, which not only saves fuel, but also improves the driving stability of the vehicle. [0003] The current automobile spoiler, the common process is the plastic injection molding process, the existing process has the following disadvantages: (1) limited by the injection mold, it is difficult to meet the increasingly ...

AI Technical Summary

Problems solved by technology

[0003] The current automobile spoiler, the common process is the plastic injection molding process, the existing process has the following disadvantages: (1) limited by the injection mold, it is difficult to meet the increasingly high performance requirements of the appearance coating and complex appearance design Require

(2) The mechanical properties of the product are low, and the cost of equipment and molds is high

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