| It is very important at the outset to consider the qualities of this very important line. In some hands it is broad and shallow on the surface of the hand, in others it is deep and fine; the appearance of this line is very often deceptive, and ... Read more of The Line Of Life at Palm Readings.org |  InformationalPrivacy |
Steel MakingConclusionsMartien was probably never a serious contender for the honor ... Application Of Liberty Engine Materials To The Automotive Industry The success of the Liberty engine program was an engineer... Cutting-off Steel From Bar To cut a piece from an annealed bar, cut off with a hack saw,... Affinity Of Nickel Steel For Carbon The carbon- and nickel-steel gears are carburized separately... Suggestions For Handling High-speed Steels The following suggestions for handling high-speed steels are ... Placing Of Pyrometers When installing a pyrometer, care should be taken that it re... The Penetration Of Carbon Carburized mild steel is used to a great extent in the manufa... Temperatures To Use As soon as the temperature of the steel reaches 100 deg.C. (... The Care Of Carburizing Compounds Of all the opportunities for practicing economy in the heat-t... The Quenching Tank The quenching tank is an important feature of apparatus in c... Preparing Parts For Local Case-hardening At the works of the Dayton Engineering Laboratories Company, ... Hardening High-speed Steel In forging use coke for fuel in the forge. Heat steel slowly ... Heat Treatment Of Milling Cutters Drills Reamers Etc THE FIRE.--Gas and electric furnaces designed for high heats ... Hints For Tool Steel Users Do not hesitate to ask for information from the maker as to t... Hardening Operation Hardening a gear is accomplished as follows: The gear is tak... Annealing To Relieve Internal Stresses Work quenched from a high temperature and not afterward tempe... Carburizing Low-carbon Sleeves Low-carbon sleeves are carburized and pushed on malleable-ir... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... Tool Or Crucible Steel Crucible steel can be annealed either in muffled furnace or b... Heat Treatment Of Lathe Planer And Similar Tools FIRE.--For these tools a good fire is one made of hard foundr... |
Carburizing By GasCategory: CASE-HARDENING OR SURFACE-CARBURIZING The process of carburizing by gas, briefly mentioned on page 88, consists of having a slowly revolving, properly heated, cylindrical retort into which illuminating gas (a mixture of various hydrocarbons) is continuously injected under pressure. The spent gases are vented to insure the greatest speed in carbonizing. The work is constantly and uniformly exposed to a clean carbonizing atmosphere instead of partially spent carbonaceous solids which may give off very complex compounds of phosphorus, sulphur, carbon and nitrogen. Originally this process was thought to require a gas generator but it has been discovered that city gas works all right. The gas consists of vapors derived from petroleum or bituminous coal. Sometimes the gas supply is diluted by air, to reduce the speed of carburization and increase the depth. Next: Preventing Carburizing By Copper-plating Previous: Case-hardening Treatments For Various Steels
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