Process for moulding high strength elongated parts made of a fibre-resin
composite
    1.
    发明授权
    Process for moulding high strength elongated parts made of a fibre-resin composite 失效
    用于模制由纤维树脂复合材料制成的高强度细长部件的方法

    公开(公告)号:US5885504A

    公开(公告)日:1999-03-23

    申请号:US736719

    申请日:1996-10-25

    摘要: A process for moulding high strength elongated parts made of a fibre-resin composite material, especially turbomachine blades such as fan blades, is disclosed wherein a plurality of heating and cooling elements are arranged within the body of the mould at intervals along the length of the mould cavity, and the liquid resin which is injected at one end into the mould cavity containing the fibre preform is polymerized progressively from the opposite end of the mould cavity, while maintaining the supply of liquid resin under pressure to the cavity, by successively de-activating the cooling elements, which maintain the resin in the liquid state, at predetermined time intervals starting from said opposite end of the mould cavity and progressing in turn towards said one end, and in synchronism therewith successively activating the heating elements to raise the temperature of the resin to the polymerizing temperature progressing in turn from said opposite end to said one end of the mould cavity. The process enables shrink cavities in the finished part to be avoided.

    摘要翻译: 公开了一种用于模制由纤维树脂复合材料制成的高强度细长部件的方法,特别是诸如风扇叶片的涡轮机叶片,其中多个加热和冷却元件沿模具的长度间隔设置在模具主体内 模腔和在一端注入到含有纤维预制件的模腔中的液态树脂从模腔的相对端逐渐聚合,同时通过依次去除空腔中的液体树脂的压力, 启动从模腔的相对端开始的预定时间间隔将树脂保持在液态的冷却元件,并且依次朝向所述一端前进,同时随后激活加热元件以提高温度 聚合温度的树脂从模具的相反端向所述一端依次进行 ty。 该过程使得可以避免成品部件中的收缩腔。