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报道:手把焊工分别在车间、室内和管道内作业,每日工作八小时,每人每日消耗焊条5—50公斤,所用焊条为酸性钛钙或碱性低氧型。25个作业点空气中粉尘浓度几何均值为11mg/m~3,16个作业点空气中粉尘颗粒直径小于2μm者占56％。464名电焊工体检结果,发现焊工尘肺7例,检出率为1.5％,观察对象15例,占3.2％。焊工尘肺平均发病工龄18.3年,平均发病年龄43.2岁。患者主要症状为胸闷、胸痛、气短和
Reporter: Hand welders were in the workshop, indoor and pipeline operations, work eight hours a day, each electrode consumption of 5-50 kg per day, the electrode used is acidic titanium calcium or alkaline hypoxia type. The average dust concentration in the air of 25 work sites is 11mg / m ~ 3, and the number of dust particles in the air at 16 working points is 56%. 464 welder physical examination results found that welder pneumoconiosis in 7 cases, the detection rate was 1.5%, the observation object in 15 cases, accounting for 3.2%. Welder pneumoconiosis average age of 18.3 years, with an average age of 43.2 years of age. The main symptoms of patients with chest tightness, chest pain, shortness of breath and