The invention discloses a composite material vehicle door anti-collision beam and a preparation method thereof. The vehicle door anti-collision beam is composed of an anti-collision beam main body, acore rigid body and an anti-collision beam connecting support. The anti-collision beam main body is of a cylindrical structure which is formed by laminating and rolling one or more continuous fiber composite materials and is provided with a closed side surface; the core rigid body is an epoxy resin system or polyurethane synthetic rubber system foaming core material and fills in an inner cavity ofthe anti-collision beam main body, the anti-collision beam connecting brackets are fixed at the two ends of the anti-collision beam main body, and glue injection holes communicated with the anti-collision beam main body and bolt holes connected with the vehicle door are formed in the anti-collision beam connecting support; according to the preparation method, the core rigid body is injected intoan installed anti-collision beam main body from the end of the anti-collision beam connecting support in an injection mode, or a prefabricated foaming core material is firstly placed in the anti-collision beam main body, and then heating is conducted to enable the foaming core material to expand to fill an inner cavity. The vehicle door anti-collision beam is light in weight, high in impact strength, simple in preparation method and easy to operate.
本发明公开了一种复合材料车门防撞梁及其制备方法,车门防撞梁由防撞梁主型体、芯部刚性体和防撞梁连接支架组成,防撞梁主型体为由一种或多种连续纤维复合材料层合后卷制而成的侧面封闭的筒状结构,芯部刚性体为环氧树脂体系或聚氨酯合成橡胶体系发泡芯材,并填充于防撞梁主型体内腔,防撞梁连接支架固定于防撞梁主型体两端,在防撞梁连接支架上开有与防撞梁主型体相联通的注胶孔及与车门连接的螺栓孔;所述制备方法中,芯部刚性体通过注射的方式从防撞梁连接支架端部注入已安装防撞梁主型体,或将预制的发泡芯材先置于防撞梁主型体,然后加热使发泡芯材膨胀填充内腔。本发明所述车门防撞梁质量轻,抗冲击强度高,且制备方法简单,操作简单。
Composite material vehicle door anti-collision beam and preparation method thereof
一种复合材料车门防撞梁及其制备方法
01.12.2020
Patent
Elektronische Ressource
Chinesisch
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