Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435)
06/1992
06/24/1992CN1017159B Lazer heat treatment technique of ic engine cylinder bore
06/23/1992US5124517 Method of induction-hardening machine components
06/23/1992US5123969 Bake-hardening cold-rolled steel sheet having dual-phase structure and process for manufacturing it
06/23/1992CA1303945C 9 chromium - 1 molybdenum alloy having superior high temperature properties and weldability, a method for preparing same and articles fabricated therefrom
06/17/1992CN1062003A Heat treatment of medium carbon steel cutter
06/16/1992US5122255 A device for adjusting oxygen concentration to a desired value ; accuracy
06/16/1992US5122199 Copper brazed torque converter pump housing made from formable high strength microalloyed steel
06/16/1992US5122198 Subjecting to final annealing of short duration at specific temperature
06/16/1992US5121903 Quenching arrangement for a furnace
06/16/1992CA1303468C Method for heat-treating steel rail head
06/10/1992CN1016969B Automatical device for rapid heat chemical processing
06/03/1992EP0488165A2 A metallic member with an improved surface layer
05/1992
05/27/1992CN2105497U Two-layer combustion energy-saving anneal furnace
05/26/1992US5116026 Modular annealing apparatus for in situ reactor vessel annealing and related method of assembly
05/20/1992CN1016706B Method of operating machine for relaxing of workpieces stress by vibration
05/19/1992US5114500 Nitriding furnace apparatus and method
05/19/1992US5114499 Method of forming chilled layer
05/14/1992WO1992008180A1 A control system for scheduling parts in a heat-treating process
05/14/1992WO1992007966A1 High-strength steel parts and method of making
05/13/1992EP0485314A1 Apparatus for low temperature plasma surface treatment of a metal plate or sheet
05/13/1992EP0484904A2 Process for producing grain-oriented electrical steel sheet having improved magnetic and surface film properties
05/13/1992EP0484667A1 Multi-purpose furnace for the thermal treatment of metallic workpieces
05/12/1992US5112412 Cooling of cast billets
05/12/1992CA1300472C Carburized low silicon steel article and process
05/07/1992DE4035589A1 Laser hardening esp. of metal pincers - followed by quench hardening to obtain high core toughness
05/07/1992DE4034653A1 Pusher-type furnace - divides row of containers into separate blocks at end of each push cycle for insertion of treatment zone dividing doors
05/06/1992EP0483596A1 Vacuum furnace for the thermal treatment of metallic workpieces
05/06/1992EP0483182A1 Process for hardening the cutting edges of saws, knives and cutting tools.
05/06/1992EP0172250B1 Apparatus for dip-hardening metal pipe
05/06/1992CN1060873A Laser heat treatment technology of elevator sine wheel
04/1992
04/30/1992WO1992007100A1 Process and device for affecting measurement and shape changes in the hardening of workpieces
04/30/1992DE4034235A1 Heat treatment with neutral carbon potential - by coating workpieces with soot
04/29/1992EP0482992A1 Process for the production of a thermic treatment atmosphere
04/29/1992CN1060685A Method of nitriding steel and heat treat furnaces used therein
04/23/1992DE4120689C1 Electron-beam hardening cutting area of flat tool - by overlap mounting blades, while leaving area to be hardened uncovered etc.
04/22/1992EP0481839A1 Process of production of a controlled atmosphere for the thermic treatment of metals
04/22/1992EP0480924A1 Process for case-hardening roller bearing components of low-alloy nickel steel
04/21/1992US5106059 Siphon driven quench tank assembly
04/21/1992CA1299071C Method of making a duplex stainless steel and duplex stainless steel product with improved mechanical properties
04/19/1992CA2053503A1 Processes for production of a controlled atmosphere for metal heating
04/17/1992WO1992007224A1 High intensity infrared heat treating apparatus
04/17/1992WO1992006781A1 Fluidized bed apparatus and method using same
04/17/1992WO1992006780A1 Coolant controlled infrared heat treat apparatus
04/17/1992CA2093002A1 High intensity infrared heat treating apparatus
04/16/1992WO1992005911A1 Process and device for manufacturing a texturing roller
04/16/1992WO1992005909A1 Process and device for manufacturing a texturing roller
04/16/1992DE4133799A1 Verfahren und vorrichtung zum beeinflussen von mass- und formaenderungen beim haerten von werkstuecken Method and device for influence of tailor-border and formative ments in the hardening of workpieces
04/15/1992EP0480385A1 A fluidized bed apparatus for chemically treating workpieces
04/15/1992EP0480265A1 Method of producing permalloy cores
04/15/1992CN1016253B Induction heating method and apparatus
04/15/1992CN1016252B Quenching method
04/14/1992US5104462 Scanning induction hardening process by using radially moving induction coil
04/14/1992US5104314 Refractory hearth furnace floor arrangement for retaining an alloy chain and pusher assembly
04/13/1992CA2052140A1 Fluidized bed apparatus for chemically treating workpieces
04/09/1992DE4031547A1 Verfahren und vorrichtung zur herstellung von texturwalzen Method and apparatus for manufacturing texture rollers
04/09/1992DE4031545A1 Verfahren und vorrichtung zur herstellung einer texturwalze Method and device for manufacturing a texture roller
04/08/1992EP0479378A1 Fluidized bed furnace with internal gas combustion
04/07/1992US5103073 Device for laser treatment of an object
04/07/1992US5102479 Of carbon, silicon, manganese, chromium, vanadium, sulfur, lead, calcium, aluminum, oxygen and iron, ferrite/peralite microstructure
04/02/1992WO1992005295A1 Gas carburizing process and apparatus
04/02/1992WO1992005001A1 Process and device for the reduction annealing of powdered iron
04/01/1992EP0478041A1 Method of forming a magnetically-coded pattern in a permanent magnet material
04/01/1992CN1016043B Method and apparatus for cooling metal strip
03/1992
03/31/1992US5100483 Carburizing a surface, then partial removal by machining, provides carburized and uncarburized areas without masking
03/26/1992DE4134333A1 Increasing tensile and vibrational strength of metal surface - by producing induced magnetic stress in surface area using current carrying rod
03/26/1992DE4030054A1 Verfahren und anlage zum reduktionsgluehen von eisenpulver Method and system for reduktionsgluehen of iron powder
03/26/1992DE4029724A1 Induction heating eccentric shaped workpieces - using inducer control device to regulate spacing between workpiece surface and inducer
03/24/1992US5098070 Furnace atmosphere reforming catalystic agitator
03/20/1992CA2051798A1 Device for surface treating a metal material plate by low temperature plasma
03/18/1992CN1059567A Bainite steel shearing-blade and its heat-treatment process
03/18/1992CN1059565A Sub-temperature quench for improving cutting property of quenched and tempered steel
03/17/1992US5096511 Method and a device for thermal surface-hardening of metal workpieces
03/17/1992US5096051 Roller with conical shank
03/11/1992CN1059375A Strong-malleabilizing treatment of hot-working die
03/11/1992CN1059368A Method of preparing nitrogen-group controllable atmosphere used for metal thermal treatment
03/10/1992US5094702 Menu driven heat treatment control of thin walled bodies
03/10/1992US5094698 Warm forming
03/05/1992WO1992003580A1 Method of hardening corrugating rolls
03/04/1992EP0473561A1 A method of heat treatment of a steel product
03/03/1992CA1296603C Process for rapid quenching in a fluidized bed
02/1992
02/26/1992CN1058992A Heat treatment of grinding ball
02/25/1992US5091021 Directing energy in a pattern to heat a magnet, selectively magnetizing, cooling to generate detectable magnetic flux density
02/20/1992WO1992003026A1 Apparatus and method of induction-hardening machine components with precise power output control
02/20/1992WO1992002326A1 Process for producing annular part
02/20/1992WO1992002316A1 Device for cooling extruded profiles
02/19/1992EP0471608A1 Method of and installation for producing nonoxidizable half ferritic steel strips from liquid metal
02/18/1992US5089059 Method and device for the heat treatment of metal straps
02/18/1992US5089058 Method and apparatus for high frequency heat-treatment of long continuous metal blanks
02/14/1992CA2048769A1 Process and device for making semi ferritic stainless steel strip
02/13/1992DE4025022A1 Annealing non-ferrous metal strip in floating strip oven - where thicker strips of metal are supported in denser inert atmos.
02/12/1992CN1015474B Vacuum furnace for heat treatment of metallic workpieces
02/11/1992CA1295479C2 Heat retaining means
02/06/1992DE4024605A1 Vorrichtung zur abkuehlung von strangpressprofilen Apparatus for cooling-down of in extruded profiles
02/04/1992CA1295215C Cleaning of metal articles
01/1992
01/29/1992EP0323961B1 An improved fluid barrier curtain system
01/28/1992US5084113 Quench hardening a valve of heat resistant martensite steel wi th a facing
01/28/1992US5083374 Thermally prestressed cylindrical structure and method of making same
01/22/1992EP0467749A1 Method of hot dip aluminium coating of a ferritic stainless steel strip
01/22/1992EP0467384A2 Method of producing grain oriented silicon steel sheets each having a low watt loss
01/21/1992US5082507 Austempered ductile iron gear and method of making it