･ 1 Crush several dozen charcoal briquettes, enough to more than cover the item you wish to case harden. ･ 2 Prepare a metal container with a metal lid. The container should be slightly larger than the item you... ･ 3 Heat the steel you wis...
http://www.ehow.com/how_4558811_case-harden-steel.html
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Case hardened steel is usually formed by diffusing carbon and/or nitrogen into the outer layer of the steel at high temperature. The carbon combines with the steel to make it nearly glass-like in its hardness.
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home.howstuffworks.com/question196.htm
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Engineering technical paper: The Magnetic Properties of a Case-Hardened Steel and Their Effect on the Performance of An Electromagnetic Actuator ... The results have been used to demonstrate the detrimental effect of case-hardening on the performance of a typical solenoid type actuator.
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www.sae.org/technical/papers/900265
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What is claimed is: 1. A blade for sports equipment comprising, in combination: a case hardened steel alloy of about 0.05 to 0.24 weight percent carbon, about 15 to 28 weight percent cobalt, about 1.5 to 9.5 weight percent nickel and one or more additives selected from the group consisting of about 3.5 to 9.0...
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www.freepatentsonline.com/6458220.html
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Carburizing is a thermochemical surface treatment which generally produces parts combining good core ductility with a "case-hardened" carburized surface that is hard and resistant to wear. Many applications require a steel with a good resistance to softening at working temperatures.
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www.patentgenius.com/patent/6699333.html
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We use 12L14 steel to make the seat and the plunger (which slides on the seat). To reduce wear, we case harden both components. ... The other problem with hardened steel is that exposure to any acid may result in a carbon smut on the surface. There is nothing more difficult to remove chemically than carbon smut. Therefore,
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www.finishing.com/133/56.shtml
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I must electropolish gears made by case hardened steel (18NiCrMo5) that is grinded with Ra 0,2. My goal is to lower the roughness as much as possible, the target is Ra 0,05 or lower. Pieces are about 200 mm length 40 mm diameter.
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www.finishing.com/128/65.shtml
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Residual stress measurements in a case hardened steel ring. ... M. B. Prime, V. C. Prantil, P. Rangaswamy and F. P. Garcia, "Residual Stress Measurement and Prediction in a Hardened Steel Ring," Materials Science Forum, Vols. 347-349, pp. 223-228, 2000. preprint (pdf) (LA-UR-99-5103);
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www.lanl.gov/residual/ring.shtml
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Case hardening is a simple method of hardening steel. It is less complex than hardening and tempering. This techniques is used for steels with a low ... The steel rod should now have a hardened outer surface and a flexible, soft interior. The process can be repeated to increase the depth of the hardened surface...
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www.technologystudent.com/equip1/heat2.htm
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