真空导入工艺（Vacuum infusion process），简称VIP，在模具上铺增强材料（玻璃纤维，碳纤维，夹心材料等，有别于真空袋工艺），然后铺真空袋，并抽出体系中的真空，在模具型腔中形成一个负压，利用真空产生的压力吧不饱和树脂通过预铺的管路压纤维层中，让树脂浸润增强材料最后充满整个模具，制品固化后，揭去真空袋材料，从模具上得到所需的制品。真空导入工艺公诸于世很久了，这个工艺在由于这种工艺是从国外引入，所以在命名上有多种称呼，真空导入，真空灌注，真空注射。

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During vacuum infusion process (referred to as VIP), reinforced materials (such as fiberglass, carbon fiber and sandwich materials, different from vacuum bag process) shall be applied on moulds and vacuum bag shall be applied and vacuum shall be pumped to form negative pressure within the mould cavity. Pressure generated from vacuum shall be employed to compress the unsaturated resin into the fiber layer via the pre-applied pipe and resin impregnated reinforced materials shall fill the whole mould. After the product is cured, vacuum bag materials shall be ripped off and required product can be obtained from the mould. vacuum infusion process became known to the world long time ago. Since it is introduced from abroad, it has many other names such as vacuum infusion, vacuum irrigation and vacuum injection.

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