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郑州北车辆段日均加修电焊制动梁１５０根，９个电焊作业点同时操作，车间空气中粉尘浓度１３．５ｍｇ／ｍ３。为了治理电焊烟尘，１９９６年初安装了一套通风除尘，并配合工艺改造，使车间粉尘浓度降至２．４ｍｇ／ｍ３。低于国家标准（６ｍｇ／ｍ３）。提示制动梁电焊作业可采用环行流水线降低劳动强度，与工艺配套的通风除尘系统可以有效地控制电焊烟尘，保护职工身体健康。
Zhengzhou North car depot on the average plus repair welding brake beam 150, 9 welding operations at the same time operating point, workshop dust concentration in the air 13.5mg / m3. In order to control welding fumes, a set of ventilation and dust removal was installed in early 1996, and the process was modified to reduce the dust concentration in the workshop to 2.4 mg / m3. Below the national standard (6mg / m3). It is suggested that the welding work of brake beam can reduce the labor intensity by the ring line, and the ventilation and dust removal system matched with the process can effectively control the welding fume and protect the health of workers.