注塑成型工艺对ABS树脂冲击性能的影响
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摘要
对丙烯腈-丁二烯-苯乙烯三元共聚物(ABS)采用不同的注塑成型工艺进行注塑,研究了注射速度、注射压力和保压压力对ABS树脂冲击强度、冲击样条缩痕深度和样品质量的影响。结果表明:提高注射速度、注射压力均使样品的冲击强度降低,质量提高,冲击样条缩痕减小。注射速度比注射压力对产品的性能影响大,调整参数时应优先考虑注射速度。在50～70 MPa的保压压力范围内,保压压力对ABS树脂的冲击性能影响较小。
The effects of injection speed,injection pressure and holding pressure on impact strength,shrinkage depth and sample quality of ABS resin were studied by different injection molding processes.The results show that the impact strength,quality and shrinkage mark of impact spline decrease with the increase of injection speed and pressure.Injection speed has greater influence on product performance than injection pressure.Injection speed is preferred when adjusting parameters.Within the pressure range of 50～70 MPa,the pressure has little effect on the impact properties of ABS resin.
The effects of injection speed,injection pressure and holding pressure on impact strength,shrinkage depth and sample quality of ABS resin were studied by different injection molding processes.The results show that the impact strength,quality and shrinkage mark of impact spline decrease with the increase of injection speed and pressure.Injection speed has greater influence on product performance than injection pressure.Injection speed is preferred when adjusting parameters.Within the pressure range of 50～70 MPa,the pressure has little effect on the impact properties of ABS resin.
引文
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[4]王晓红,邹永春,麦堪成.橡胶含量对ABS树脂性能的影响[J].塑料科技,2016,44(4):61-65.
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[6]陈静波,申长雨,刘春太,等.聚合物注射成型流动残余应力的数值分析[J].力学学报,2005,37(3):272-279.
[7]Chen X,Lam Y X,Li D Q.Analysis of thermal residual stress in plastic injection molding[J].Journal of Materials Processing Technology,2000,101(1):275-280.
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[9]赵振峰,陈政,吴海宏,等.ABS注塑制品的模内蠕变试验研究[J].实验力学,2006,21(4):497-501.
[2]王宇超,陆书来,陈明,等.注塑环境评价抗氧剂对丙烯腈-丁二烯-苯乙烯三元共聚物热氧老化能力的影响[J].塑料工业,2018,46(7):143-147.
[3]孙春福,陆书来,宋振彪,等.ABS树脂现状与发展趋势[J].塑料工业,2018,46(2):1-5,18.
[4]王晓红,邹永春,麦堪成.橡胶含量对ABS树脂性能的影响[J].塑料科技,2016,44(4):61-65.
[5]张海霞,郝刚,宋利忠,等.影响ABS树脂色度测试的因素[J].塑料科技,2018,46(4):117-121.
[6]陈静波,申长雨,刘春太,等.聚合物注射成型流动残余应力的数值分析[J].力学学报,2005,37(3):272-279.
[7]Chen X,Lam Y X,Li D Q.Analysis of thermal residual stress in plastic injection molding[J].Journal of Materials Processing Technology,2000,101(1):275-280.
[8]Zhou H M,Li D Q.Residual stress analysis of the postfilling stage in injection molding[J].International Journal of Advanced Manufacturing Technology,2005,25(7):700-704.
[9]赵振峰,陈政,吴海宏,等.ABS注塑制品的模内蠕变试验研究[J].实验力学,2006,21(4):497-501.