木塑复合材料注塑工艺优化研究

摘要

The orthogonal analysis method on barrel maximum temperature, injection pressure, dwell time, the impact of temperature on the injection nozzle on plastic composite material properties was used. The experimental re-sults showed that: the highest barrel temperature impacted on tensile strength and impact strength, and it was the main factors affecting the tensile strength and impact strength, when the maximum cylinder temperature was 185 ℃, the injection pressure was 5. 5 ~6. 5 MPa, dwell time for 10 s, the nozzle temperature was 200 ℃, the injection process is the best.%采用正交分析法考察了机筒最高温度，注塑压力，保压时间，喷嘴温度对注塑木塑复合材料性能的影响，实验结果表明：在本试验中机筒最高温度对冲击强度和对拉伸强度有较大的影响，是影响冲击强度和对拉伸强度的主要因素，当最高机筒温度为185℃、注射压力为5.5~6.5 MPa、保压时间为10 s、喷嘴温度为200℃时为最优工艺。