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Document ID (ISN)31930
CIS number 79-1311
ISSN - Serial title 0039-4580 - Sudostroenie
Year 1979
Convention or series no.
Author(s) Koval' V.I.
Title Elimination of harmful substances during mechanised welding processes
Original title Udalenie vrednyh veščestv pri mehanizirovannyh vidah svarki [in Russian]
Bibliographic information Mar. 1979, No.3, p.46-49. Illus. 12 ref.
Abstract A mathematical analysis of the aerodynamic conditions to be met by local exhaust ventilation equipment for the removal of welding fume in the presence of limiting surfaces is followed by a description of an exhaust ventilation hood mounted on a welding torch for inert gas (CO2) welding. Prototype testing of this device showed the optimal diameter definition for the hood to be 70-80mm for a distance of 80mm between it and the welding point. Fume is exhausted through a flexible tube, the aerodynamic resistance of which is easy to determine. Removal efficiency is 90-95%, and saving in energy consumption is considerable compared to conventional local exhaust ventilation systems.
Descriptors (primary) shielded-arc welding; exhaust devices; welding fumes; local exhaust
Descriptors (secondary) description of equipment; mathematical analysis; ventilation design; aerodynamics
Document type -
Subject(s) Heating, ventilation and climate
Broad subject area(s)
Browse category(ies) Welding and cutting