国产轿车内饰塑料件生产常见缺陷及解决方法

分析影响国产轿车内饰塑料件注射成型产品质量的注射成型工艺、原材料、模具三大因素，以注射成型工艺为重点，将原料干燥工艺、注射温度、注射速率、注塑压力、保压时间和压力、模具温度等因素进行优化组合，分析了轿车内饰塑料件注塑生产常见的缺料、熔接痕、杂质、斑点、气花、气泡、顶白、断裂、缩凹变形、流痕、亮斑、暗斑、烧焦、飞边、冷料、拉丝等质量缺陷产生的原因，并提出了克服缺陷的常用措施。

COMMON QUALITY DEFECTS AND SOLUTIONS DURING THE INJECTION OF PLASTIC ORNAMENTS OF HOMEMADE AUTOMOBILE

Three factors including injection molding technology, raw materials and injection mould which decide the quality of plastic ornaments of homemade automobile are analyzed. The injection molding technology is described with emphasis, and factors such as the desiccation of raw materials, the temperature, speed and pressure of injection, the time and pressure of pressure dwell, the temperature of mould are assembled with optimization. The reasons why common quality faults including scarcity, mark of fusion, impurity, spot, bubble et al occur are analyzed and the solutions are given.