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Document ID (ISN)36726
CIS number 81-1911
ISSN - Serial title 0409-2961 - Bezopasnost' truda v promyšlennosti
Year 1980
Convention or series no.
Author(s) Belaja N.S.
Title Improving working conditions in the gas welding of aluminium
Original title Ulučšenie uslovij truda pri gazovoj svarke aljuminija [in Russian]
Bibliographic information June 1980, No.6, p.35. Illus.
Abstract Submerged arc welding of aluminium gives rise to the formation of hydrogen fluoride, nitrogen oxides and other harmful gases. A vertical-flow exhaust ventilation device has been developed to draw off these gases; it comprises an inclined louvred panel and a welding table which is also louvred to allow air to flow upwards. Detailed description, technical specification and calculations of airflow required to eliminate welding fumes. Air samples collected at a height of 10cm above the welding table showed that HF, NOx and CO concentrations were below threshold levels.
Descriptors (primary) local exhaust; welding fumes; gas welding; harmful substances
Descriptors (secondary) description of equipment; workplace design; mathematical analysis; ventilation design; exhaust devices
Document type D - Periodical articles
Subject(s) Heating, ventilation and climate
Broad subject area(s)
Browse category(ies) Welding and cutting
Ventilation