| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 09/02/1993 | WO1993017133A1 Method and installation for treating metal articles with induction magnetic field in gaseous medium |
| 09/02/1993 | WO1993016821A1 Process and apparatus for applying and removing liquid coolant to control temperature of continuously moving metal strip |
| 08/31/1993 | US5241151 Continuous electron beam irradiation of metal strip |
| 08/26/1993 | DE4205647A1 Verfahren zur thermochemisch-thermischen behandlung von einsatzstaehlen A method for thermo-chemical-thermal treatment of einsatzstaehlen |
| 08/26/1993 | DE4204982A1 Thermochemical-thermal treatment of case hardening steels - with deep cooling between hardening and tempering |
| 08/25/1993 | CN1021918C Process for improving cold formability of heat-treatable steels |
| 08/24/1993 | US5238509 Method for carrying out a remelting/hardening treatment |
| 08/19/1993 | DE4203395A1 Verfahren zum aufheizen von duennbrammen, blechen und stahlbaendern und dergleichen waermgut in hochtemperatur-rollenherdoefen, hubbalkenoefen oder aehnlichen ofenanlagen und oefen zur durchfuehrung des verfahrens A method of heat from duennbrammen, sheet and stahlbaendern and the like waermgut in high temperature roller hearth furnaces, walking beam furnaces and ovens or similar for performing the method |
| 08/18/1993 | CN2140373Y Material basket for heat treatment |
| 08/17/1993 | US5236520 Geometric configuration; at least one bend; preferred orientation of grains; warm working |
| 08/17/1993 | US5235838 Method and apparatus for truing or straightening out of true work pieces |
| 08/11/1993 | EP0555199A2 Vacuum chamber oven for the thermal treatment of metal work pieces |
| 08/11/1993 | EP0555066A1 Method and apparatus for annealing nuclear reactor pressure vessels |
| 08/11/1993 | CN2139940Y Automatic soak medicinal liquid and hydroextrator device for mineral material |
| 08/10/1993 | US5234659 Plant for conductive electrical heating of steel blanks |
| 08/10/1993 | US5234513 Used for color cathode ray tubes |
| 08/10/1993 | US5234507 Anti-oxidant agent for continuous annealing of stainless steel strip and anti-oxidation method using the same |
| 08/10/1993 | US5234201 Contour hardening apparatus |
| 08/10/1993 | CA1321125C Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing |
| 08/05/1993 | WO1993015233A1 High-strength steel parts and method of making |
| 08/05/1993 | WO1993014894A1 Apparatus and method for net shape finishing of gears |
| 08/05/1993 | DE4202178A1 Pretreatment of annealed steel billets - where stationary hot billets are given controlled surface cooling by pressure water in a closed cooling chamber |
| 08/04/1993 | EP0553388A2 Caliber roll for rolling and manufacturing method of its roll main body |
| 08/04/1993 | EP0553305A1 High intensity infrared heat treating apparatus |
| 08/04/1993 | EP0553303A1 Coolant controlled infrared heat treat apparatus |
| 07/28/1993 | EP0552460A1 Process for hardening of work pieces unter the action of plasma-pulses |
| 07/27/1993 | US5231645 Method of controlling continuous carburization furnace |
| 07/22/1993 | WO1993014229A1 Device for heat-treating metal workpieces |
| 07/22/1993 | DE4208908C1 Prodn. of soft iron@ powder - by continuous redn. and annealing in specified temp. range |
| 07/20/1993 | US5228850 Industrial furnace with improved heat transfer |
| 07/20/1993 | US5228513 Convective heat transfer by cascading jet impingement |
| 07/20/1993 | US5228324 Method of bending metal objects |
| 07/15/1993 | DE4300359A1 Remelt hardening of valve drive surface of cam - comprises directing heating torch onto surface of cam which is axially reciprocated relative to torch and simultaneously rotated about its axis |
| 07/13/1993 | CA1320111C Method and apparatus for settling sludge |
| 07/08/1993 | WO1993013232A1 Solid metal-carbon matrix of metallofullerites and method of forming same |
| 07/08/1993 | DE4142216A1 Improving torsional strength of components with grooves - by localised hardening of groove bottom corners by high energy beam in protective atmosphere |
| 07/08/1993 | CA2127244A1 Solid metal-carbon matrix of metallofullerites and method of forming same |
| 07/07/1993 | CN1073982A Normalizing pre-treatment technology with double preheat |
| 07/07/1993 | CN1073981A Overheat correcting mesothermal compound heat-treating technology |
| 07/06/1993 | US5225651 Device for low-temperature plasma surface treatment of a plate or a sheet of a metallic material |
| 07/06/1993 | US5225142 Method and apparatus for the automatic monitoring of operating safety and for controlling the progress of the process in a vacuum heat-treatment oven |
| 07/06/1993 | US5225005 Method of annealing/magnetic annealing of amorphous metal in a fluidized bed and apparatus therefor |
| 07/01/1993 | WO1993013233A1 Austenitic high manganese steel having superior formability, strength and weldability, and manufacturing process therefor |
| 06/30/1993 | CN1073723A In-situ generation of heat treating atmospheres using a miture of non-cryogenically produced nitrogen and a hydrocarbon gas |
| 06/30/1993 | CN1073620A Riser-free multi-purpose equipment for casting and forging grinding ball, crankshaft, lining board and gear, etc. |
| 06/30/1993 | CN1021483C Rotary hearth multi-chamber, multipurpose furnace system |
| 06/30/1993 | CN1021462C Agitator for atomosphere reforming in continuous heat-treating furnace |
| 06/24/1993 | WO1993012628A1 Induction furnace |
| 06/22/1993 | US5221513 Apparatus and method for net shape finishing of gears |
| 06/22/1993 | US5221369 Introducing gaseous nitrogen containing oxygen mixed with reducing gas into furnace |
| 06/17/1993 | DE4200848C1 Synchronous rotating ball joint - with selective hardening of guide surfaces and ball paths |
| 06/17/1993 | DE4141740A1 Steel strip annealing - uses controlled feed of protective gas according to surface area of the material |
| 06/17/1993 | DE4141250A1 Roller for roller hearth furnace - has bearer body equipped with several bearer plates between which are insulating layers in which is embedded heat-resistant cord |
| 06/09/1993 | EP0545384A1 Bearing components and process for producing same |
| 06/09/1993 | EP0545069A1 Method of treating steel and refractory metals |
| 06/09/1993 | DE4233530C1 Component hardening appts. for longitudinal workpieces - has clutch brake connection between drive shaft and workpiece holders at turntable with three settings |
| 06/09/1993 | DE4224264C1 Remelting of workpiece surface - by reducing carbon@ content in parts where remelting will not occur and directing an arc, electron, plasma or laser beam onto the surface |
| 06/09/1993 | DE4139956A1 Borating metal surface, giving wear-resistant feathered lamella coating - by applying paste contg. borating cpd., heating to cause remelting of outer layer, and cooling |
| 06/09/1993 | CN2135577Y Large double-frequency hardening machine |
| 06/09/1993 | CN1072965A Molybdenum-contained bainite low alloy steel and its heat-treatment process |
| 06/08/1993 | CA1318839C Thermal treatment process under nitrogen and hydrocarbon-based gaseous atmosphere |
| 06/08/1993 | CA1318837C Machine element and method of making |
| 06/02/1993 | CN1072727A Heat treatment method for medium carbon manganese steel and low carbon manganese steel product |
| 06/01/1993 | CA1318578C Process and apparatus for making hot-rolled steel strip |
| 05/27/1993 | WO1993010273A1 Device for cooling coils of hot-rolled strip |
| 05/27/1993 | WO1993010270A1 Device for cooling coils of hot-rolled strip |
| 05/27/1993 | WO1993010269A1 Method and device for cooling coils of hot-rolled strip |
| 05/27/1993 | WO1993010268A1 Device for cooling coils of hot-rolled strip |
| 05/27/1993 | WO1993009899A1 Method for degassing and solidifying aluminum alloy powder |
| 05/26/1993 | EP0543010A1 Process for producing annular part |
| 05/26/1993 | EP0542951A1 Process for tempering a rail vehicle wheel |
| 05/26/1993 | EP0542813A1 Apparatus and method of induction-hardening machine components with precise power output control. |
| 05/26/1993 | EP0388437B1 Long life cover for heat chamber |
| 05/25/1993 | US5213636 Method and apparatus of quench hardening of gear teeth surfaces |
| 05/25/1993 | CA1318362C Insitu energy beam processing of railroad track and equipment for increasing service lifetime |
| 05/19/1993 | CN1020754C Flattening method for bending workpiece in scanning induction hardening |
| 05/18/1993 | US5211820 Gas analysis system for furnaces and the like |
| 05/18/1993 | US5211775 Removal of oxide layers from titanium castings using an alkaline earth deoxidizing agent |
| 05/18/1993 | US5211557 Heating furnace |
| 05/18/1993 | CA1317859C Method for producing roll steel products |
| 05/13/1993 | WO1993009256A1 Rod cooling system |
| 05/13/1993 | DE4137867A1 Producing anisotropic properties in material e.g. set concrete - by applying thermal, magnetic or electrical field to setting material |
| 05/13/1993 | CA2122357A1 Rod cooling system |
| 05/12/1993 | EP0541353A1 Method and apparatus for heat treating of aluminium or an aluminium alloy |
| 05/12/1993 | EP0541006A2 In-situ generation of heat treating atmospheres using a mixture of non-cryogenically produced nitrogen and a hydrocarbon gas |
| 05/12/1993 | EP0540916A1 Improved high-intensity rotary peening particle support and method of making same |
| 05/12/1993 | EP0404898B1 Device for hardening the surfaces of workpieces of different lengths |
| 05/12/1993 | CN1071971A P-cu-ti low alloyed cast iron ball and producing process thereof |
| 05/11/1993 | CA1317421C Process and means for combustion optimisation in carbon blocks sitting chambers |
| 05/07/1993 | CA2080265A1 High-intensity rotary peening particle support and method of making same |
| 05/06/1993 | CA2081875A1 In-situ generation of heat treating atmospheres using a mixture of non-cryogenically produced nitrogen and a hydrocarbon gas |
| 05/05/1993 | EP0539858A1 Process for producing grain-oriented electrical steel strip having high magnetic flux density |
| 05/05/1993 | EP0539416A1 Method and apparatus for treating gases and/or solid material in a circulating fluidized bed reactor |
| 05/05/1993 | CN1071705A Paint protecting steel ingot surface from high-temp oxidation |
| 05/04/1993 | US5208434 Method and apparatus for laser heat treatment for metal wire |
| 05/04/1993 | US5207839 Injecting a Silane to Remove Oxygen |
| 05/04/1993 | US5207573 Heat processing apparatus |
| 04/28/1993 | EP0538709A1 Light beam heating system |
| 04/28/1993 | EP0538575A1 Method for cooling a charge of workpieces during a heat treatment process |
| 04/28/1993 | CN1071463A Heat-cutting hardening process for bainite steel workpiece |