VENTILATION REQUIREMENTS FOR GAS-METAL-ARC WELDING VERSUS COVERED-ELECTRODE WELDING

被引：8

作者：

ALPAUGH, EL

PHILLIPPO, K

PULSIFER, HC

机构：

[1] International Harvester Company, 401 North Michigan Avenue, Chicago

[2] Ametek Corp., East Moline

来源：

AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL | 1968年 / 29卷 / 06期

关键词：

D O I：

10.1080/00028896809343054

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The purpose of the study was to compare gas-metal-arc welding with coveredelectrode welding and to determine if ventilation requirements for the two procwes should be different. Solenoid valves set far inhalation and exhalation times observed in the normal adult male were used to simulate breathing by a plaster dummy head. The plaster head, mounted on an automatic welding head carriage, moved parallel to the welding direction so that its position remained fixed relative to the welding arc. Air samples were taken concurrently inside and outside the helmet worn by the dummy during the welding process. Samples were analyzed for concentrations of iron oxide, nitrogen dioxide, ozone, fluorides, and carbon monoxide. Combinations of five wire electrodes, three of which were flux-cored, and five shielding gases were evaluated. One type of coated-rod electrode was used for comparison purposes. © 1968 Taylor & Francis Group, LLC. All rights reserved.

引用

页码：551 / &