结晶型塑料注塑平板冷却模型的研究

Study on the Cooling Model for Injection Molded Slabs of Crystalline Plastics

本文从注塑的实际出发,针对注塑塑料平板的冷却凝固本质,提出了有限厚度区域内注塑平板的冷却模型,用精确分析解法与积分近似解法相结合,进行了理论推导,求得了固液两相内的温度分布和平板中心层温度冷却至熔点所需的冷却时间。

On the basis of injection molding, the author puts forward the new-type cooling model for injection-molded slabs of crystalline plastics in the region of finite thickness, makes theoretical derivation with combination of precision analysis solution and integral-approximation and gives the temperature distrbutions in the solid and liquid phases and the required cooling time when the temperature of the core layer of the slab is reduced to Tin,