| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 08/09/1983 | US4397451 Furnace for the heat treatment of scale-covered steel |
| 08/09/1983 | CA1151513A1 Process for annealing steels |
| 08/09/1983 | CA1151419A1 Gas-liquid cooling apparatus |
| 08/03/1983 | EP0084785A1 Quenching metal or an alloy on a belt |
| 08/02/1983 | US4396439 Recovery and recycle of nitrate and nitrite salts from chloride containing quench bath solids |
| 08/02/1983 | CA1151058A1 Laser hardening of steel work pieces |
| 07/27/1983 | EP0084335A2 Apparatus for quenching molten metal or an alloy on a belt |
| 07/26/1983 | US4395024 Apparatus for hardening metallic workpieces including furnace and workpiece transport structure, a part of which can remain in the furnace during furnace operation |
| 07/26/1983 | US4395022 Method of and apparatus for controlled cooling of metallurgical products |
| 07/19/1983 | US4394234 Method of processing electrically conductive material by glow discharge |
| 07/19/1983 | US4394195 Cooling of center plate to avoid softening |
| 07/19/1983 | US4394194 Method for heat treating structural members |
| 07/19/1983 | US4394186 Method for producing a dual-phase steel sheet having excellent formability, high artificial-aging hardenability after forming, high strength, low yield ratio, and high ductility |
| 07/12/1983 | US4392814 Fluidized bed |
| 07/05/1983 | CA1149349A1 Procedure and device for shipping hot metal goods |
| 07/05/1983 | CA1149199A1 Method of heat treating high carbon alloy steel parts to develop surface compressive residual stresses |
| 06/29/1983 | EP0082157A1 Remelting hardening |
| 06/22/1983 | EP0081645A2 Process for cooling work pieces |
| 06/21/1983 | CA1148627A1 Truncated triangular insulator with a corresponding-shaped support member |
| 06/14/1983 | US4388122 Controlled cooling to produce ferrite/bainite composite |
| 06/14/1983 | US4388068 Metal heating furnace |
| 06/09/1983 | WO1983001959A1 Process for the bainitic hardening at least partially isothermally of a cast iron part |
| 06/08/1983 | EP0080932A1 Method and device for the controlled cooling of sheets |
| 06/07/1983 | US4386972 Injection of a mixture of nitrogen, natural gas, and air |
| 06/07/1983 | US4386727 Prevention of build up of residual stresses in welds during welding and subsequent reheat cycles |
| 06/07/1983 | US4386458 Fatigue resistance for coupling and connection joint mechanisms |
| 06/07/1983 | CA1147634A1 Protective atmosphere process for annealing and or spheroidizing ferrous metals |
| 06/01/1983 | EP0080322A2 Method and apparatus for continuously quenching a steel plate |
| 06/01/1983 | EP0080290A1 Lift-off means and method for use with a horizontal continuous hearth roll furnace for the treatment of metallic strip |
| 06/01/1983 | EP0080086A1 Device for cooling flat rolled products |
| 05/31/1983 | US4385945 Lift-off means and method for use with a horizontal continuous hearth roll furnace for the treatment of metallic strip |
| 05/25/1983 | EP0079864A1 Process for high-temperature carburizing treatment of track bushes for tractors or tracked vehicles, with carburizing atmosphere produced in situ, direct quenching, annealing at ends and total stress relieving |
| 05/25/1983 | EP0079804A1 Furnace door seal |
| 05/25/1983 | EP0079621A2 Method and apparatus for cooling steel pipes |
| 05/24/1983 | CA1146844A1 Process for steel heat treating and control thereof |
| 05/24/1983 | CA1146745A1 Reheat furnace |
| 05/18/1983 | EP0079236A2 Metal quenchant fluids |
| 05/17/1983 | US4383871 Knives for food slicing machines |
| 05/17/1983 | US4383822 Refractory sheathing made from insulating shapes for vertical support members in heat-treating furnaces |
| 05/17/1983 | US4383677 Blade fabricating process |
| 05/17/1983 | CA1146464A1 Liquid cryogen delivery system |
| 05/11/1983 | EP0009050B1 High strength steel and process of making |
| 05/10/1983 | US4382586 Metal cooling bed for controlling rate of cooling |
| 05/10/1983 | CA1146226A1 Blade fabricating apparatus and process by induction heating |
| 04/27/1983 | EP0077627A2 Corrosion resistant steel components and method of manufacture |
| 04/26/1983 | US4381251 Oxidation inhibitor |
| 04/26/1983 | US4381205 Metal quenching process |
| 04/26/1983 | CA1145232A1 Atmosphere injection system |
| 04/12/1983 | US4379547 Continuous cold rolling and annealing apparatus for steel strip |
| 04/05/1983 | US4379004 Method of manufacturing an amorphous magnetic alloy |
| 03/30/1983 | EP0075438A1 Heat treatment of metals |
| 03/29/1983 | US4378257 Process for the temporary shutdown of continuous discharge carburizing plants |
| 03/29/1983 | US4378205 Oxygen aspirator burner and process for firing a furnace |
| 03/29/1983 | CA1143842A1 Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace |
| 03/23/1983 | EP0074615A2 Industrial furnace with air circulation for a thermal treatment process |
| 03/22/1983 | CA1143186A1 High strength, tough alloy steel |
| 03/17/1983 | WO1983000825A1 Method of quenching |
| 03/16/1983 | EP0074211A1 Coated metal substrate and method of coating a metal substrate |
| 03/15/1983 | US4376662 Methods for fabricating metallic workpieces |
| 03/15/1983 | US4376528 Steel pipe hardening apparatus |
| 03/08/1983 | US4375998 Method and apparatus for cooling metal strip wound into coils |
| 03/08/1983 | US4375997 Method of inductively heat treating a thin-walled workpiece to control distortion |
| 03/08/1983 | CA1142419A1 Process and apparatus for removing sludge from salt baths |
| 03/02/1983 | EP0072901A1 Process and apparatus for the uniform heating of elongated workpieces by induction |
| 03/02/1983 | EP0072867A1 Process for manufacturing high-tensile hot-rolled steel strip having a low yield ratio due to its mixed structure |
| 03/02/1983 | EP0072789A1 Fused salt bath composition |
| 03/01/1983 | US4375378 Steels |
| 03/01/1983 | US4375377 Steels which are useful in fabricating pressure vessels |
| 03/01/1983 | US4375283 Method of controlling tensions in continuous annealing furnace and system therefor |
| 03/01/1983 | CA1142196A1 Piston ring and method of making same |
| 03/01/1983 | CA1142069A1 Process for producing two-phase high tension cold rolled steel sheet having improved workability |
| 03/01/1983 | CA1142068A1 Process for producing high strength cold rolled steel sheet having excellent paintability, weldability and workability |
| 03/01/1983 | CA1142066A1 Method of manufacturing an amorphous magnetic alloy |
| 03/01/1983 | CA1141960A1 Installation for generating a metal heat treatment atmosphere |
| 02/23/1983 | EP0072525A1 Indirect heating furnace for the surface treatment of a metal or the like employing a salt bath |
| 02/22/1983 | US4374680 Corrosion-resistant weldable martensitic stainless steel, process for the manufacture thereof and articles |
| 02/22/1983 | CA1141633A1 Process and installation for the handling and heat treatment of cast iron or steel pipes and tubes |
| 02/22/1983 | CA1141632A1 Process for treating metals using recycled gases |
| 02/16/1983 | EP0072355A1 Process for direct treatment of links for tractors or tracked vehicles |
| 02/15/1983 | US4373972 Controlled cooling after rolling to produce a martensitic microstructure; concrete reinforcement; low temperature |
| 02/15/1983 | US4373706 Apparatus for heat treatment of material to be worked on, especially of aluminum or magnesium alloys |
| 02/15/1983 | US4373703 Device for rapidly cooling metal tubes |
| 02/15/1983 | US4373364 Method of controlling the temperature of a heating furnace |
| 02/15/1983 | CA1141153A1 Method and apparatus for local temperature difference of steel product |
| 02/08/1983 | US4372790 Method and apparatus for the control of the carbon level of a gas mixture reacting in a furnace chamber |
| 02/01/1983 | US4371149 Apparatus for cooling sheet steel by water spraying |
| 01/26/1983 | EP0070409A1 Method and device for induction-hardening elongated thin-walled workpieces |
| 01/26/1983 | EP0070347A1 Heat treating apparatus |
| 01/19/1983 | EP0070115A2 Billet heating furnace |
| 01/18/1983 | CA1139644A1 Method for producing a dual-phase steel sheet having excellent formability, high artificial-aging hardenability after forming, high strength, low yield ratio, and high ductility |
| 01/18/1983 | CA1139643A1 Silicon steel and processing therefore |
| 01/14/1983 | EP0060257A4 Method for surface hardening cams. |
| 01/12/1983 | EP0069383A1 Method of treating the surface of workpieces |
| 01/12/1983 | EP0069178A1 Method of and apparatus for heat treatment of rotationally symmetrical workpieces by induction heating |
| 01/11/1983 | US4368038 Refractory pads for walking beam furnaces |
| 01/11/1983 | US4367597 Gas-liquid cooling apparatus |
| 01/06/1983 | WO1983000051A1 Remelting hardening |
| 01/04/1983 | US4367101 Method of providing an anti-stick coating on non-oriented, semi-processed electrical steels to be subjected to a quality anneal |
| 01/04/1983 | US4367100 Silicon steel and processing therefore |
| 12/28/1982 | US4366008 Method for hardening steel |