| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 04/28/1993 | CN1020380C Composite heat treatment technology of unity nodular cast iron parts by once heating and deeply and intensively toughening |
| 04/27/1993 | US5205342 Continuous slab caster arrangement followed by a rolling mill |
| 04/27/1993 | CA1316969C Process and device for cooling an object |
| 04/22/1993 | DE4134504A1 Preliminary treatment of annealed steel billets - with billet core consolidated by shrinking cooled surface layer |
| 04/20/1993 | US5204987 Apparatus for treating steel edges of skis and other runner devices |
| 04/20/1993 | CA1316438C Heat treatment of corrosion resistant steels |
| 04/20/1993 | CA1316434C Method and apparatus for producing electrical steel core laminations |
| 04/19/1993 | WO1993008312A1 Soft magnetic steel material with excellent direct current magnetizability and corrosion resistance and production thereof |
| 04/14/1993 | EP0536986A1 A method for steel surface hardening treatment and an apparatus therefor |
| 04/14/1993 | CN1020286C Heat treatment of grinding ball |
| 04/13/1993 | US5201363 Solidification using cooling rolls |
| 04/08/1993 | DE4228093C1 Hardening of bearing surfaces of different size crankshaft - comprises two inductor sets, each inductor is adapted for a specific crankshaft having associated transformers, connecting lead, cooling and quenching pipes, etc. |
| 04/07/1993 | EP0535651A1 Method of manufacturing grain oriented silicon steel sheets |
| 04/07/1993 | CN1020238C Method of straightening crooked workpiece in scanning induction hardening |
| 04/04/1993 | CA2062527A1 Heating furnace |
| 04/01/1993 | WO1993006257A1 Process and apparatus for surface hardening of refractory metal workpieces |
| 03/24/1993 | EP0533615A1 Installation for the thermal treatment of successive charges |
| 03/24/1993 | EP0532589A1 Fluidized bed with submerged infrared lamps. |
| 03/23/1993 | US5196672 Laser processing arrangement |
| 03/23/1993 | US5196156 Rod cooling system |
| 03/23/1993 | US5195888 Multi-layer fluid curtains for furnace openings |
| 03/17/1993 | CN2128251Y Die cast ram through laser surface treatment |
| 03/17/1993 | CN1070006A Iron base shape memory alloy with good cold working quality |
| 03/17/1993 | CN1070004A Water base protective agent for steel parts heating |
| 03/16/1993 | US5194228 Sources of oxygen and hydrocarbon gas at pressures above that of endothermic gas to be produced |
| 03/16/1993 | US5193998 Sealing arrangement for heat treatment apparatus |
| 03/10/1993 | EP0530513A1 Heat treat furnace system for performing different carburizing processes simultaneously |
| 03/10/1993 | EP0530383A1 Method and device for forming workpieces |
| 03/10/1993 | CN1069770A Heat treatemtn of chain wheel surface for high hardness |
| 03/09/1993 | US5192610 Corrosion-resistant protective coating on aluminum substrate and method of forming same |
| 03/09/1993 | CA1314199C Pipe quenching apparatus |
| 03/09/1993 | CA1314198C Apparatus for hardening of steel pipe by immersion quenching |
| 03/04/1993 | WO1993004538A1 A method of encoding and decoding a glassy alloy strip to be used as an identification marker |
| 03/03/1993 | EP0530175A2 Steel for wood saw blades |
| 03/03/1993 | EP0529198A2 Controlled-atmosphere furnace, particularly for preheating extrusion dies for aluminum and alloys thereof |
| 03/03/1993 | CN1069523A Annealing technology for relieving stress from alloyed steel ingot |
| 03/02/1993 | US5191183 Apparatus for processing ceramics using microwave oven with resistance heating unit |
| 03/02/1993 | US5190597 Process for producing grain-oriented electrical steel sheet having improved magnetic and surface film properties |
| 03/02/1993 | CA1313951C Long life cover for heat chamber |
| 02/24/1993 | EP0528153A1 Multi-layer fluid curtains for furnace openings |
| 02/24/1993 | CN1069332A In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen |
| 02/17/1993 | CN1069071A Heat treatment of steel wire |
| 02/16/1993 | US5187670 Control system for scheduling parts in a heat-treating process |
| 02/16/1993 | US5186018 Cooling system for cooling a moving metal strip |
| 02/11/1993 | DE4217326A1 Specimen heating during free fall testing - comprises applying incident heat energy on specimen during weightlessness using heating means arranged independently of specimen |
| 02/11/1993 | DE4126351A1 Controlling the polar of a laser beam - by monitoring radiation reflected from the workpiece at the working area and using the monitored average temp. as a control parameter |
| 02/10/1993 | EP0526942A1 Liquid composition |
| 02/10/1993 | EP0526834A1 Method of manufacturing silicon steel sheet having grains precisely arranged in goss orientation |
| 02/09/1993 | US5185044 Solidifying steel melt to form ingot, heating, enclosing in malleable envelope, shaping at two specified temperatures, removing envelope |
| 02/04/1993 | DE4125801A1 Increased absorption of carbon-di:oxide laser radiation by workpiece - involves using nitrogen@ gas blanket and focussed pulsed laser simultaneously with the continuous high power laser |
| 02/03/1993 | EP0526330A1 Process for making thinwalled tubes, steel for making these tubes and so produced tubes for bicycle frames |
| 02/03/1993 | EP0525975A1 Apparatus for heat-treatment and repair of turbine blades |
| 02/03/1993 | EP0525634A1 Method of, and apparatus for, preparing stapler anvils |
| 02/03/1993 | EP0525467A2 Grain oriented silicon steel sheet having excellent primary glass film properties |
| 02/03/1993 | EP0525430A1 Process for purifying and/or preparing gases |
| 02/03/1993 | EP0525429A1 Device for purifying and/or regenerating gases |
| 02/02/1993 | US5183519 Method for quenching railway rail heads |
| 01/31/1993 | CA2074751A1 Liquid composition |
| 01/28/1993 | DE4125248A1 Intensivkuehleinrichtung fuer walzgutstablagen Walzgutstablagen Intensivkuehleinrichtung for |
| 01/28/1993 | DE4124644A1 Hardening internal surface of esp. cylinders - using structured rollers to heat surface by electro-resistance heating and movement of roller electrode over workpiece surface |
| 01/27/1993 | EP0524689A1 Heat treatment of steel wire |
| 01/27/1993 | EP0524368A1 Automatic apparatus for monitoring and control of a vacuum thermal treatment furnace |
| 01/27/1993 | EP0524207A1 Method and device for surface hardening of rotation symmetrical parts through inductive heating by means of at least two different frequencies. |
| 01/27/1993 | CN1068371A Method and equipment for raising elongation of cold-worked wire rod |
| 01/26/1993 | US5182433 Method of laser quenching |
| 01/26/1993 | US5182074 Apparatus for continuously cooling metal strip |
| 01/26/1993 | CA1313043C Vacuum oven for the heat treatment of metal workpieces |
| 01/24/1993 | CA2073705A1 Method and apparatus for annealing stapler anvils |
| 01/21/1993 | WO1993001329A1 Unidirectional silicon steel sheet having excellent film properties |
| 01/21/1993 | DE4123577A1 Deep laser hardening of component - using three-dimensional high intensity heat extn. to assist self-quenching |
| 01/20/1993 | EP0524156A1 A process and apparatus for the combined thermal treatment of metallic materials and articles |
| 01/20/1993 | EP0523375A2 Process for producing steel bar wire rod for cold working |
| 01/19/1993 | US5180448 Method of laser hardening corrugating rolls |
| 01/19/1993 | US5180444 Vertical air flow, uniform hardness and grain size |
| 01/19/1993 | US5179852 Metallurgy, steels |
| 01/18/1993 | CA2073618A1 Process and apparatus for the combined thermal treatment of metallic materials and articles |
| 01/14/1993 | DE4122814A1 Heat treatment furnace - has a protective gas atmosphere and evacuable gas quench chamber |
| 01/14/1993 | DE4121489A1 Ofenanlage als zwischenspeicher hinter einer duennbrammengiessanlage Furnace as between storage behind a thin slab caster |
| 01/13/1993 | EP0522521A1 Charging device for a thermic treatment furnace for small metalic articles |
| 01/13/1993 | EP0522444A2 In-situ generation of heat treating atmospheres using non-cryogenically produced nitrogen |
| 01/13/1993 | EP0522407A1 Blackening treating method of stainless steel strip surface and blackening treating furnace |
| 01/11/1993 | CA2073631A1 Grain oriented silicon steel sheet having excellent primary film properties |
| 01/07/1993 | WO1993000179A1 Intermediate storage oven downstream of a thin slab casting plant |
| 01/07/1993 | CA2112233A1 Intermediate storage oven downstream of a thin slab casting plant |
| 12/30/1992 | EP0520476A2 Continuous electron beam irradiation of metal strip |
| 12/30/1992 | EP0520220A1 Method and device for inductive surface hardening of crankshaft journals and pins |
| 12/30/1992 | CN2126401U Car-type annealing furnace |
| 12/29/1992 | US5174944 Separator for removal of pressure-controlling nitrogen from liquid methanol used in hardening furnace |
| 12/29/1992 | US5174836 Heating steel, rapidly cooling outer surfaces, reheating, air cooling, tempering; forming bainite microstructure |
| 12/29/1992 | US5174122 Method and means of low temperature treatment of items and materials with cryogenic liquid |
| 12/29/1992 | CA1311993C Gray cast iron having both increased wear resistance and toughness |
| 12/24/1992 | DE4120036A1 Quenching oil with improved vapour pressure-temp. behaviour - based on low viscosity selectively-refined dewaxed base oils of hydrorefined prods. of paraffin basic crude oil distillates |
| 12/23/1992 | EP0519422A2 Apparatus for quenching heated metal workpieces comprising a device for extracting fumes |
| 12/23/1992 | CN1019587B Process for hyperthermal strengthening heat-treatment |
| 12/22/1992 | US5173246 Device for the surface hardening of workpieces of different lengths |
| 12/22/1992 | US5173133 Using localized induction heating |
| 12/22/1992 | US5173124 Rapid gas quenching process |
| 12/16/1992 | EP0518815A1 Process for heating a metal alloy workpiece |
| 12/16/1992 | EP0518746A1 Charging device for supporting workpieces inside a furnace |
| 12/16/1992 | EP0415987B1 Process for continuous production of steel strip or steel sheet from flat products made by the circular-arc type continuous casting process |