In this study, a gas-assisted heating system for mold surface temperature control was established. Two gap size control modes (A and B) of the gas channel and the heating results of both cavity and core sides were investigated, moreover, the effective heating area for gas heating expansion angle were determined as well by using gas flow rate 3001/min. The results show that the mold temperature difference on the gas inlet of core and cavity surface can be reduced from 39.8 °C to 1.4 °C under 5mm gap size with B mode. For the hot gas heating expansion angle, it directly affected heating area, and being relative with the entrance of gas channel. A case study of micro-molding for double sides 0.4mm thin wall plat (L/t=200) with micro-dot arrays shows that replication accuracies reach higher than 90% when molding at a mold temperature of 150 °C, an improvement of 25.3% over injection molding at the regular mold temperature of 90 °C.
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机译：在该研究中，建立了一种用于模塑表面温度控制的气体辅助加热系统。研究了气体通道的两个间隙尺寸控制模式（A和B）和两个腔和芯侧的加热结果，通过使用气流3001 / min，确定了用于气体加热膨胀角的有效加热区域。结果表明，在5毫米间隙尺寸下，芯和腔表面的气体入口的模具温度差可从39.8°C为B模式。对于热气体加热膨胀角，它直接影响加热区域，以及与气体通道的入口相对。具有微点阵列的双面0.4mm薄壁平板（L / T = 200）微型模制的案例研究表明，当在150°C的模具温度下成型时，复制精度达到高于90％，改善注塑成型25.3％在常规模具温度为90℃。
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