Steel MakingLathe And Planer ToolsTO FORGE.--Gently warm the steel to remove any chill is parti... Carburizing By Gas The process of carburizing by gas, briefly mentioned on page ... Application To The Automotive Industry The information given on the various parts of the Liberty eng... Steel Before The 1850's In spite of a rapid increase in the use of machines and the ... Application Of Liberty Engine Materials To The Automotive Industry The success of the Liberty engine program was an engineer... Knowing What Takes Place How are we to know if we have given a piece of steel the ver... Testing And Inspection Of Heat Treatment The hard parts of the gear must be so hard that a new mill f... An Automatic Temperature Control Pyrometer Automatic temperature control instruments are similar to the ... Preventing Decarbonization Of Tool Steel It is especially important to prevent decarbonization in such... Conclusions Martien was probably never a serious contender for the honor ... Judging The Heat Of Steel While the use of a pyrometer is of course the only way to hav... Heat Treatment Of Lathe Planer And Similar Tools FIRE.--For these tools a good fire is one made of hard foundr... Drop Forging Dies The kind of steel used in the die of course influences the he... Pyrometry And Pyrometers A knowledge of the fundamental principles of pyrometry, or th... Carbon Tool Steel Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham... Cutting-off Steel From Bar To cut a piece from an annealed bar, cut off with a hack saw,... Phosphorus Phosphorus is one of the impurities in steel, and it has been... Impact Tests Impact tests are of considerable importance as an indication ... Shrinking And Enlarging Work Steel can be shrunk or enlarged by proper heating and cooling... Standard Analysis The selection of a standard analysis by the manufacturer is t... |
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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