Steel MakingAnnealing Of Rifle Components At Springfield ArmoryIn general, all forgings of the components of the arms manufa... Sulphur Sulphur is another impurity and high sulphur is even a greate... Sulphur SULPHUR is another element (symbol S) which is always found i... Rate Of Absorption According to Guillet, the absorption of carbon is favored by ... Hints For Tool Steel Users Do not hesitate to ask for information from the maker as to t... Rate Of Cooling At the option of the manufacturer, the above treatment of gea... Bessemer Process The bessemer process consists of charging molten pig iron int... Short Method Of Treatment In the new method, the packed pots are run into the case-har... A Satisfactory Luting Mixture A mixture of fireclay and sand will be found very satisfactor... Open Hearth Process The open hearth furnace consists of a big brick room with a l... Heat-treating Department The heat-treating department occupies an L-shaped building. ... Classifications Of Steel Among makers and sellers, carbon tool-steels are classed by g... Cutting-off Steel From Bar To cut a piece from an annealed bar, cut off with a hack saw,... The Care Of Carburizing Compounds Of all the opportunities for practicing economy in the heat-t... The Influence Of Size The size of the piece influences the physical properties obta... Restoring Overheated Steel The effect of heat treatment on overheated steel is shown gra... Steel Before The 1850's In spite of a rapid increase in the use of machines and the ... Double Annealing Water annealing consists in heating the piece, allowing it to... Correction For Cold-junction Errors The voltage generated by a thermo-couple of an electric pyrom... Crucible Steel Crucible steel is still made by melting material in a clay or... |
The Penetration Of CarbonCategory: CASE-HARDENING OR SURFACE-CARBURIZING Carburized mild steel is used to a great extent in the manufacture of automobile and other parts which are likely to be subjected to rough usage. The strength and ability to withstand hard knocks depend to a very considerable degree on the thoroughness with which the carburizing process is conducted. Many automobile manufacturers have at one time or another passed through a period of unfortunate breakages, or have found that for a certain period the parts turned out of their hardening shops were not sufficiently hard to enable the rubbing surfaces to stand up against the pressure to which they were subjected. So many factors govern the success of hardening that often this succession of bad work has been actually overcome without those interested realizing what was the weak point in their system of treatment. As the question is one that can create a bad reputation for the product of any firm it is well to study the influential factors minutely. Next: Introduction Of Carbon Previous: Preparing Parts For Local Case-hardening
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