Manufacturing method for carbon fiber composite engine cover

The invention discloses a manufacturing method for a carbon fiber composite engine cover. An outer plate, an inner plate and preformed foam are integrally formed. The manufacturing method comprises the following steps: (1) foam pre-forming; (2) laying up; (3) compression molding; and (4) demolding. According to the manufacturing method for the carbon fiber composite engine cover, the inner plate,the outer plate and the pre-formed foam are integrally formed, a technological process is simple, the capacity is high, energy consumption is low, a carbon fiber composite is subjected to double effects of external pressure and internal expansive force in a forming process, and thus, the obtained product is good in apparent quality, light in weight, high in modulus and excellent in combination property. 本发明公开了种碳纤维复合材料引擎盖的制造方法，采用外板、内板和预成型泡沫体成型的方法，包括如下步骤：（1）泡沫预成型；（2）铺层；（3）模压成型；（4）脱模。本发明种碳纤维复合材料引擎盖的制造方法，采用内板、外板和预成型泡沫体成型方法，工艺过程简单，产能高，能耗低，成型过程中碳纤维复合材料受到外部压力和内部膨胀力的双重作用，使所得产品的表观质量好，质量轻，模量高，综合性能优异。