نتایج جستجو برای: aluminum foundries
تعداد نتایج: 51611 فیلتر نتایج به سال:
The research results of the noise effect on workers in foundry are presented. main sources shown. An assessment factor various professions was made. Recommendations and measuring design new reconstruction existing foundries given.
Aluminum castings have played an integral role in the growth of the aluminum industry since its inception in the late 19th century. The first commercial aluminum products were castings, such as cooking utensils and decorative parts, which exploited the novelty and utility of the new metal. Those early applications rapidly expanded to address the requirements of a wide range of engineering speci...
Like Phenol (C 6 H 5 OH) and Urea {(NH 2 ) 2 C=O)}, Furfuryl alcohol (C 4 H 3 OCH 2 OH), a product of agricultural origin is capable of polymerization with Formaldehyde (H 2 C = 0) under suitable PH conditions. However, usable polymers, at least as no bake for Foundry applications are obtained only when the condensations are carried out in association with Urea, Phenol or both. The series of re...
Background: Some foundries use the Hot Box method, which involves use of a nitrogen-containing binder system to produce cores for hollow castings. During the process, low molecular weight isocyanates such as isocyanic acid (ICA) and methyl isocyanate (MIC) are formed, which are potentially toxic. However, data regarding exposure to these agents, and their health effects, were sparse. Aims: The ...
The working conditions at the workplaces of foundry workers when performing finishing operations, production factors determining them are considered. results studies parameters considered professions in comparison with standard values presented. It has been established that a comprehensive assessment foundries department financial it is necessary to take into account duration stay equipment, eq...
This research study sought to determine the strengths and weaknesses of the current maintenance practices at a sand casting manufacturing company which is principally a ferrous foundry producing grey and white iron. The work suggested good practices which could be taken on board and others which could be improved on. The generated recommendations can be used by other foundries to enhance their ...
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