Carbon monoxide and fume on the CO2-arc welding process.

Generation rate of carbon monoxide from CO2 arc welding.

OBJECTIVES CO poisoning has been a serious industrial hazard in Japanese workplaces. Although incomplete combustion is the major cause of CO generation, there is a risk of CO poisoning during some welding operations. The aim of the present study was to evaluate the generation rate of CO from CO2 arc welding under controlled laboratory conditions and estimate the ventilation requirements for the...

An Experimental Study of the Fume Particulate Produced by the Shielded Metal Arc Welding Process

Welding fumes are common ambient air pollutants in manufacturing facilities, and have been shown to have deleterious effects on human health. An experimental effort is conducted to study the formation and composition of respirable fumes from a SMAW process. The responses examined are the fume particle size distribution (mean diameter) and formation rate (particle number and mass concentration)....

Performance of a fume-exhaust gun system in CO2 arc welding.

Although the incidence of pneumoconiosis has been decreasing in Japan, welders’ health hazards due to welding fume inhalation are still serious, because effective engineering methods for controlling fumes are technically difficult to implement in many welding shops. In the 6th notification of general prevention of dust hazards issued by the Japanese Ministry of Health, Labor and Welfare (2003–2...

Effective control of gas shielded arc welding fume RR683

Monitoring of Arc Welding Process Based on Arc Light Emission