摘要
RTM 模腔内温度变化与形变的测试结果表明:模腔内树脂的放热峰可以通过改变固化剂的含量适当调节,模腔表面胶衣及表面层树脂应能承受120 ℃的热疲劳冲击;表面树脂开裂、软化是导致模具失效的主要原因;模塑件的精度主要取决于模具刚度,在注射压力使用下,FRP 模具的整体刚度要依靠合理设计的钢结构提供。
The measuring of temperature change and distortion in RTM moulds shows that the exothermic peak of resin in the cavity can be adjusted through catalyst contents.The cracking and softening of surface resins result in the mould failure.The precision of moulded parts depends on the mould stiffness.The proper design of steel structure supplies FRP mould stiffness.
出处
《玻璃钢/复合材料》
CAS
CSCD
1999年第4期24-26,共3页
Fiber Reinforced Plastics/Composites