| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
|---|
| 07/01/1986 | US4597807 Accelerated carburizing method with discrete atmospheres |
| 07/01/1986 | US4597341 Soaking pit cover |
| 06/24/1986 | US4596615 Method of cooling hot steel plates |
| 06/24/1986 | US4596613 Heating in non-oxidizing atmosphere, applying tensile force to remove surface imperfections |
| 06/24/1986 | US4596611 Heat treatment in nitriding gaseous atmosphere, cooling, surface finishing, oxidizing |
| 06/24/1986 | US4596610 Multistage heat treatment in heat treatment box by diffusion in gaseous atmosphere |
| 06/24/1986 | US4596526 Batch coil annealing furnace and method |
| 06/24/1986 | US4596282 Heat treated high strength bimetallic cylinder |
| 06/24/1986 | CA1206399A1 Local annealing treatment for cube-on-edge grain oriented silicon steel |
| 06/19/1986 | WO1986003646A1 Inductor for heating railroad railheads |
| 06/18/1986 | EP0184978A2 Process for manufacturing pipes for the petroleum and natural gas industries and for drilling rods |
| 06/18/1986 | EP0184719A1 Process and apparatus for improving the dynamic strength of vehicle wheel discs made from hardenable aluminium alloys |
| 06/17/1986 | US4595357 Continuous annealing method and apparatus for cold rolled steel strips |
| 06/11/1986 | EP0184093A1 Process and device for heating elongated work pieces by direct passage of an electric current |
| 06/11/1986 | EP0183920A2 Running process of a reheating furnace, and reheating furnace for billets, blocks or the like |
| 06/10/1986 | US4594114 Controlled annealing |
| 06/10/1986 | US4594113 Microalloyin& with nitride, rolling, and controlled cooling |
| 06/10/1986 | CN85107697A Apparatus and method for air cooling hot rolled steel rod |
| 06/10/1986 | CA1205730A1 Method and apparatus for sequentially quenching steel pipes |
| 06/10/1986 | CA1205729A1 Process for heat-treating rails |
| 06/04/1986 | EP0183209A2 Inductive heater for heating the edges of a longitudinally extending body with a flat cross-section |
| 06/04/1986 | EP0099383B1 Furnace for preheating elongate materials |
| 06/03/1986 | US4592788 Method for pressurized water quenching of rolled steel products |
| 06/03/1986 | US4592537 Apparatus for heat treating and sizing thin walled articles |
| 05/28/1986 | EP0182050A2 Strip cooling apparatus for continuous annealing furnace |
| 05/28/1986 | EP0182023A2 Method and apparatus for heat treatment of steel rods |
| 05/28/1986 | CN85202609U Continuous vacuum annealing furnace for stainless steel strip |
| 05/27/1986 | US4591395 Method of heat treating low carbon steel strip |
| 05/27/1986 | US4591337 Heat treatment furnace with crown-shaped transport path for the workpieces |
| 05/27/1986 | US4591133 Cooling apparatus for thick steel plate |
| 05/21/1986 | EP0181830A2 Method and apparatus for heating a strip of metallic material in a continuous annealing furnace |
| 05/21/1986 | EP0181740A2 Heat retaining means |
| 05/21/1986 | EP0181653A1 Improvement relating to fluidized bed apparatus |
| 05/21/1986 | EP0181583A2 Method of making a dual-phase hot-rolled steel strip |
| 05/20/1986 | US4590346 Method of heating piping arrangement and heating coil |
| 05/20/1986 | US4589935 Uniform heating, quick cooling |
| 05/20/1986 | US4589934 Quench hardening |
| 05/20/1986 | US4589933 With continous curtain of recycled water |
| 05/20/1986 | US4589931 Method of producing a thin steel sheet having baking hardenability and adapted for drawing |
| 05/20/1986 | CA1204653A1 Olivine bedding material for soaking pits |
| 05/14/1986 | EP0181101A2 Apparatus and method for air cooling hot rolled steel rod |
| 05/14/1986 | EP0180805A1 Steel helmet or the like |
| 05/13/1986 | US4588869 Method for relieving residual stresses by controlling weld heat input |
| 05/13/1986 | US4588453 Method of manufacturing grain-oriented silicon steel sheets |
| 05/13/1986 | US4588378 Continuous heat treating furnace for metallic strip |
| 05/10/1986 | CN85107452A Method of manufacturing the pipe and drilling rod unit for petroleum and natural gas industry |
| 05/07/1986 | EP0180254A1 Plant to form and cool coils |
| 05/07/1986 | EP0180010A2 Processing materials in furnaces |
| 05/06/1986 | US4586966 Method of producing cold-rolled steel sheet exhibiting improved press-formability |
| 05/06/1986 | US4586965 Production of a base steel sheet to be surface-treated which is to produce no stretcher strain |
| 05/06/1986 | US4586897 Installation including a heating furnace for continuous castings, which are cut to length, from a continuous casting installation |
| 04/30/1986 | EP0179506A1 Method of drape drawing a shadow mask for a colour display tube and device for such a method |
| 04/29/1986 | US4585917 Method for relieving residual stresses by build-up welding over outer surface of pipe |
| 04/29/1986 | US4585916 Transverse flux induction heating of metal strip |
| 04/29/1986 | US4585412 Ingot pusher furnace |
| 04/29/1986 | US4585411 Method and walking beam furnace for the intermediate heating of pipes in hot rolling mills |
| 04/24/1986 | WO1986002384A1 Method for the continuous tempering of sheet metal such as steel and plant for implementing it |
| 04/23/1986 | EP0179050A2 Furnace for heat-treating light metal bars |
| 04/23/1986 | EP0178799A2 Apparatus for cooling hot rolled steel rod |
| 04/23/1986 | EP0178378A2 Method of controlling cooling of hot-rolled steel sheet and system therefor |
| 04/22/1986 | US4584035 Steel sheet, and a production process therefor, for use in the manufacture of an end for an easy-to-open can: and an end for an easy-to-open can |
| 04/22/1986 | US4583720 Apparatus for the zone-annealing of a workpiece consisting of a high-temperature material |
| 04/22/1986 | US4583387 Apparatus for thermomechanically rolling hot strip product to a controlled microstructure |
| 04/22/1986 | CA1203459A1 Method and apparatus for heat treating steel |
| 04/22/1986 | CA1203458A1 Method of heat treating steel wire |
| 04/22/1986 | CA1203456A1 Process for preparing strips or sheets of high strength austenitic steel having improved fatigue strength |
| 04/16/1986 | EP0178281A2 Cooling apparatus for moving metallic products |
| 04/16/1986 | EP0178059A1 The production of metal strip |
| 04/15/1986 | US4582547 Adding an inert, high temperature separator agent |
| 04/15/1986 | US4582546 Method of pretreating cold rolled sheet to minimize annealing stickers |
| 04/10/1986 | WO1986002104A1 Method and installation for heat treatment, especially case-hardening |
| 04/10/1986 | WO1986002103A1 A process for heat treatment of workpieces and a heat treatment installation suitable for such a process |
| 04/09/1986 | EP0177187A1 Method and apparatus for casting slabs |
| 04/08/1986 | US4581512 Method and apparatus for cooling induction heated material |
| 04/08/1986 | US4581079 Hardenability and rolling resistance |
| 04/08/1986 | US4581078 Stiffening; sizing; increased resistance to surface scratching |
| 04/08/1986 | US4580353 Apparatus and method for air cooling hot rolled steel rod |
| 04/08/1986 | CA1202865A1 Process for producing cold rolled steel sheets having excellent press formability and ageing property |
| 04/01/1986 | US4579319 Combined sintering-annealing furnace |
| 04/01/1986 | US4578918 Insulation anchor |
| 04/01/1986 | CA1202551A1 Method of manufacturing cold rolled steel sheets for extra deep drawing with an excellent press formability |
| 04/01/1986 | CA1202550A1 Laser treatment of electrical steel |
| 04/01/1986 | CA1202495A1 Rotor shaft and manufacturing method thereof |
| 03/26/1986 | EP0175640A2 Method and apparatus for vacuum deposition plating |
| 03/26/1986 | EP0175430A2 Apparatus for soaking steel pieces |
| 03/25/1986 | US4578030 Method of and a plant for preheating and, possibly, heat-treating and subsequently dividing rod-shaped material into slugs |
| 03/25/1986 | US4578011 Device for charging steel products in a reheating or treatment furnace |
| 03/25/1986 | CA1202174A1 Heating furnace for elongate material |
| 03/18/1986 | US4576657 Process of manufacturing a cold rolled steel sheet having excellent press formability |
| 03/18/1986 | US4576656 Method of producing cold rolled steel sheets for deep drawing |
| 03/18/1986 | CA1201961A1 Grinding rod and method for production thereof |
| 03/18/1986 | CA1201960A1 Method of manufacturing steel reinforcements for concrete, having improved properties |
| 03/11/1986 | US4575397 Rail having high resistance to wear in its head and high resistance to rupture in its foot |
| 03/11/1986 | US4575054 Apparatus for quenching steel pipes |
| 03/11/1986 | US4575053 Continuous annealing apparatus |
| 03/05/1986 | EP0173218A2 Extraction roller table of a bloom heating installation |
| 03/05/1986 | EP0172944A1 Method and apparatus for heat-treating abrasives or the like |
| 03/04/1986 | US4573667 Apparatus for quenching substantially flat workpieces |
| 03/04/1986 | US4573666 Apparatus for quenching butt-welded portion of rail |
| 03/04/1986 | US4573520 Apparatus for rapid tempering a metal or alloy on a moving belt |