936 resultados para Road machinery
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"Supersedes TM5-9500, Principles of modern excavation and equipment, 11 August 1942."
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The main objective is to analyze the abrasive wear resistance to the low stress of the elements that make up the organs of road machinery that are exposed directly to contact with abrasives. These samples were analyzed after these elements are coated superficially by the process of welding electrode coated with (SAER) and the manual process of coating type LVOF thermal spraying. As well, is to provide suggestions for a better recovery and return of these elements, which are reducing costs and avoiding downtime in the fronts of service. The samples were made from a substrate of carbon ABNT 1045 tempered steel, following the same specifications and composition of metals and alloys of constituents was followed the standard governing the dimensions of these samples and in accordance with the corresponding size. The results were evaluated by testing the hardness, abrasion resistance to wear by the low stress and the loss of volume involving the microstructure of coatings analyzed
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Mode of access: Internet.
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"December 1992."
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"O-222192"--P. [13].
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Includes indexes.
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Includes indexes.
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"March 1992."
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"March 1992."
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"December 1991."
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"June 1992."
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"21 June 1973"--Change no. 1.
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"December 1974."
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"January 1992."
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"October 1979."