منابع مشابه
Effect of Mig Welding Input Process Parameters on Weld Bead Geometry on Hsla Steel
The various welding parameters such as welding speed, voltage and gas flow rate were varied on HSLA steel and the effects of these parameters on weld bead geometry such as penetration, width & height have been studied. Mathematical equations have been developed using factorial technique. And the result of various effects are shown in tables. (Numerical Values). INTRODUCTION Wide variety of stee...
متن کاملRetinal burns from MIG-welding arcs.
SIR, I read the article by G P H Brittain' on retinal burns caused by exposure to MIG-welding arcs with great interest. I had not seen any cases in Australia and so I was very interested to study the illustrations. Two cases were described. The first case was illustrated in Fig. 2 but I could not see the 'small dark lesion above each fovea' said to be present. The second case is illustrated in ...
متن کاملBronchial reactions to exposure to welding fumes.
OBJECTIVES To study the airway response and its mechanism to welding fumes in six welders with respiratory symptoms. METHODS Methacholine and welding challenge tests were carried out. The concentration of welding fumes during the exposure test was measured. On two subjects who developed bronchoconstricition to welding challenge, additional tests were carried out including prick, patch, and in...
متن کاملMassive hemoptysis due to welding fumes
UNLABELLED Many pulmonary problems such as lung cancer, occupational asthma, and pneumoconiosis have been described due to welding in the literature until now. This is the first case report of alveolar hemorrhage due to welding fumes presented with massive hemoptysis. We report a rare case of massive hemopthisis associated with welder's lung, with a discussion based on a review of the literatur...
متن کاملManganese speciation of laboratory-generated welding fumes.
The objective of this laboratory study was to identify and measure manganese (Mn) fractions in chamber-generated welding fumes (WF) and to evaluate and compare the results from a sequential extraction procedure for Mn fractions with that of an acid digestion procedure for measurement of total, elemental Mn. To prepare Mn-containing particulate matter from representative welding processes, a wel...
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ژورنال
عنوان ژورنال: QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY
سال: 1988
ISSN: 0288-4771
DOI: 10.2207/qjjws.6.468