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Class Information
Number: 148/644
Name: Metal treatment > Process of modifying or maintaining internal physical structure (i.e., microstructure) or chemical properties of metal, process of reactive coating of metal and process of chemical-heat removing (e.g., flame-cutting, etc.) or burning of metal > Heating or cooling of solid metal > Iron(fe) or iron base alloy > Localized or zone heating or cooling > Cooling
Description: Process which includes cooling of metal.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8597441 Method for producing partially hardened steel components Dec. 3, 2013
8562767 Method of heat treating a steel bearing component Oct. 22, 2013
8557064 Method of cooling rail weld zone, and rail weld joint Oct. 15, 2013
8555507 Method for fabricating a member of a vehicle Oct. 15, 2013
8404062 Device and method for cooling hot strip Mar. 26, 2013
8372222 Method of producing locally austempered ductile iron Feb. 12, 2013
8282747 Cooling method of steel plate Oct. 9, 2012
8168014 Method for manufacturing martensitic stainless steel pipe or tube May. 1, 2012
8097096 Fire resistant steel excellent in high temperature strength, toughness, and reheating embrittlement resistance and process for production of the same Jan. 17, 2012
8073575 Vehicle Dec. 6, 2011
7824508 Fine grain surface layer steel part and method of production of same Nov. 2, 2010
7806992 Hot forged product with excellent fatigue strength, method for making the same, and machine structural part made from the same Oct. 5, 2010
7718018 Method of cooling steel plate May. 18, 2010
7691212 Rolling element and method of producing the same Apr. 6, 2010
7691213 Case hardened gear and method of producing the same Apr. 6, 2010
7308813 Clutch housing and method for manufacturing the same Dec. 18, 2007
6872264 Road wheel composition and method for manufacturing road wheel using the same Mar. 29, 2005
6723185 Method for producing defects and tensile residual stresses Apr. 20, 2004
6676777 Postweld heat treatment process of carbon steel and low alloy steel Jan. 13, 2004
6585834 Method for performing a heat treatment of metallic rings, and bearing ring thus obtained Jul. 1, 2003
6569269 Process for producing a high and low pressure integrated turbine rotor May. 27, 2003
6488788 Flat plate member with a gear portion and a process for making the same Dec. 3, 2002
6454884 Method of manufacturing a vehicle structural beam Sep. 24, 2002
6436205 Method for surface processing of a continuously cast steel product and device therefor Aug. 20, 2002
6364972 Method for selectively hardening a carbon steel screw Apr. 2, 2002
6355119 Heat treatment method for producing boundary-layer hardened long products and flat products of unalloyed or low-alloy steel Mar. 12, 2002
6273974 Selected heat treatment and hardening method for nails Aug. 14, 2001
6174389 Fixture and method for selectively quenching a predetermined area of a workpiece Jan. 16, 2001
6092389 High rate cooling furnace for metal strips Jul. 25, 2000
6059903 Method of cooling sectional girders May. 9, 2000
6059899 Press-formed article and method for strengthening the same May. 9, 2000
6030471 Method for producing a hardened wheel Feb. 29, 2000
5911844 Method for forming a metallic material Jun. 15, 1999
5879480 Process for imparting residual compressive stresses to steel machine components Mar. 9, 1999
5814167 Stamped-metal clip for use with an endless track belt cooperating with slide rails Sep. 29, 1998
5808233 Amorphous-crystalline thermocouple and methods of its manufacture Sep. 15, 1998
5800641 Method of thermal or thermochemical treatment of precision steel components Sep. 1, 1998
5759309 Thermal process for selectively hardening track chain links Jun. 2, 1998
5733391 Quenching method Mar. 31, 1998
5710405 Method for developing residual compressive stress in stainless steel and nickel base superalloys Jan. 20, 1998
5667605 Method of fabrication of a piece of structural steel, and the steel fabricated thereby Sep. 16, 1997
5553106 Residual stress improving method for members in reactor pressure vessel Sep. 3, 1996
5419792 Method and apparatus for cooling a workpiece May. 30, 1995
5390900 Metal strip cooling system Feb. 21, 1995
5137586 Method for continuous annealing of metal strips Aug. 11, 1992
5104462 Scanning induction hardening process by using radially moving induction coil Apr. 14, 1992
5000798 Method for shape control of rail during accelerated cooling Mar. 19, 1991
4877463 Method for producing rolled steel products, particularly threaded steel tension members Oct. 31, 1989
4867810 Method and apparatus for hardening cam lobes on a camshaft Sep. 19, 1989
4842655 Process for improving resistance of metal bodies to stress corrosion cracking Jun. 27, 1989

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