中文摘要：

目的调查分析汽车零部件制造行业噪声危害及其对工人听力损失的影响。方法2012至2014年，通过对汽车零部件制造企业工作场所中的噪声、作业工人的听力检测，综合分析不同工艺噪声的特点、暴露水平及其对工人听力损失的影响。结果汽车零部件制造行业不同产品生产过程中，汽车轮毂和汽车悬挂及转向系统制造过程的噪声危害程度高，超标率分别为79．8％和57．1％；汽车零部件制造不同工艺过程中，冲压和铸造的噪声危害程度高，超标率分别为65．0％和50．0％；汽车空调系统作业工人的听力损失率达3．1％。结论汽车零部件制造行业噪声超标严重，虽然作业工人听力损失率低于我国汽车制造业的平均水平，但有逐年上升的趋势，汽车零部件制造行业的噪声危害仍需得到足够的重视。

英文摘要：

Objective To investigate noise hazard and its influence on hearing loss in workers in the automotive component manufacturing industry. Methods Noise level in the workplace of automotive component manufacturing enterprises was measured and hearing examination was performed for workers to analyze the features and exposure levels of noise in each process, as well as the influence on hearing loss in workers. Results In the manufacturing processes for different products in this industry, the manufacturing processes of automobile hub and suspension and steering systems had the highest degrees of noise hazard, with over-standard rates of 79.8% and 57.1% , respectively. In the different technical processes for automotive component manufacturing, punching and casting had the highest degrees of noise hazard, with over-standard rates of 65.0% and 50%, respectively. The workers engaged in the automotive air conditioning system had the highest rate of abnormal hearing ability （up to 3.1% ）. Conclusion In the automotive component manufacturing industry, noise hazard exceeds the standard seriously. Although the rate of abnormal hearing is lower than the average value of the automobile manufacturing industry in China, this rate tends to increase gradually. Enough emphasis should be placed on the noise hazard in this industry.