| Effect: One of six cards is selected from the magician. It is then counted off and placed into the middle of the deck. Spectator tells magician when the pile is large enough, he then holds cards. Magician slaps cards from his hand and only one remain... Read more of Slap Happy at Card Trick.ca |  InformationalPrivacy |
Steel MakingNon-shrinking Oil-hardening SteelsCertain steels have a very low rate of expansion and contract... Gas Consumption For Carburizing Although the advantages offered by the gas-fired furnace for ... Hardness Testing The word hardness is used to express various properties of me... Temperatures To Use As soon as the temperature of the steel reaches 100 deg.C. (... Separating The Work From The Compound During the pulling of the heat, the pots are dumped upon a ca... Properties Of Alloy Steels The following table shows the percentages of carbon, manganes... Fatigue Tests It has been known for fifty years that a beam or rod would fa... Case-hardening Treatments For Various Steels Plain water, salt water and linseed oil are the three most co... Heating Of Manganese Steel Another form of heat-treating furnace is that which is used ... Complete Calibration Of Pyrometers For the complete calibration of a thermo-couple of unknown e... Hardening Carbon Steel For Tools For years the toolmaker had full sway in regard to make of st... Carburizing By Gas The process of carburizing by gas, briefly mentioned on page ... Refining The Grain This is remedied by reheating the piece to a temperature slig... Short Method Of Treatment In the new method, the packed pots are run into the case-har... Highly Stressed Parts The highly stressed parts on the Liberty engine consisted of ... Corrosion This steel like any other steel when distorted by cold worki... The Quenching Tank The quenching tank is an important feature of apparatus in c... Annealing Of Rifle Components At Springfield Armory In general, all forgings of the components of the arms manufa... Forging High-speed Steel Heat very slowly and carefully to from 1,800 to 2,000 deg.F.... Cyanide Bath For Tool Steels All high-carbon tool steels are heated in a cyanide bath. Wi... |
Tool Or Crucible SteelCategory: ANNEALING Crucible steel can be annealed either in muffled furnace or by being packed. Packing is by far the most satisfactory method as it prevents scaling, local hard spots, uneven annealing, or violent changes in shape. It should be brought up slowly to just above its calescent or hardening temperature. The operator must know before setting his heats the temperature at which the different carbon content steels are hardened. The higher the carbon contents the lower is the hardening heat, but this should in no case be less than 1,450 deg.F. Next: Annealing Alloy Steel Previous: Annealing Of High-speed Steel
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