| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
|---|
| 09/09/1987 | CN86101198A Aq. solution quenching medium for high-speed steel |
| 09/08/1987 | US4692583 Surface heat treating apparatus |
| 09/02/1987 | EP0234669A2 Mixture of magnesium oxide and a zirconium compound as a separating coating for annealing silicon steel |
| 09/02/1987 | CN86100540A Method for preparing nitrogen group protecting atmosphere by direct reaction |
| 08/27/1987 | WO1987005054A1 Apparatus for thermal treatments of thin parts such as silicon wafers |
| 08/26/1987 | EP0233854A1 Device for cooling a moved strip |
| 08/25/1987 | US4688724 Low pressure misting jet |
| 08/19/1987 | EP0232537A2 Process for producing grain-oriented electrical steel sheet having improved magnetic properties |
| 08/19/1987 | EP0232477A1 Process for zone-annealing of metal workpieces |
| 08/19/1987 | EP0232346A1 Oven with movable beams. |
| 08/18/1987 | US4687894 Induction heating method and apparatus for relieving residual stress in welded joints in pipe line |
| 08/13/1987 | WO1987004730A1 Method of heat treatment |
| 08/11/1987 | US4686349 Apparatus for improving surface quality of rotary machine parts |
| 08/11/1987 | US4685980 Quick melting and rapid cooling; transformers |
| 08/06/1987 | DE3602911A1 Apparatus for the rapid cooling of heat-treated tubes |
| 08/05/1987 | CN86100766A Method for producing nontoxic quenching agent |
| 08/04/1987 | US4684402 Method of waste disposal, and apparatus for the same |
| 08/04/1987 | CA1225009A1 Polyoxazolines in aqueous quenchants |
| 07/30/1987 | DE3602558A1 Method for setting fastening elements |
| 07/29/1987 | CN86100252A Semi-ring shape inductor used in large shaft neck surface quenching |
| 07/28/1987 | US4682855 Laser-light absorber and method for absorbing laser light |
| 07/23/1987 | DE3601084A1 Process for reheating semifinished products cast in a continuous casting installation and apparatus for carrying it out |
| 07/21/1987 | US4682011 Furnace for the partial heat treatment of work tools |
| 07/15/1987 | CN86108867A Full-sealing device for feed end of atmospheric control bottom-vibrating furnace |
| 07/15/1987 | CN86100097A Laser heat treatment process for high-speed diesel engine cylinder hole |
| 07/14/1987 | CA1224029A1 Apparatus for continuously cooling heated metal plate |
| 07/08/1987 | EP0228284A2 Method of cooling hot-rolled steel plate |
| 07/07/1987 | CA1223724A1 Apparatus for immersion hardening metallic pipe |
| 07/01/1987 | CN85109465A Energy-saving annealing technology and an energy-saving annealing furnace |
| 06/24/1987 | CN85109155A Multiple strengthening technique for bearing steel workpiece |
| 06/23/1987 | US4675057 Method of heat treating using eddy current temperature determination |
| 06/19/1987 | DE3621789C1 Installation for tempering metal parts in a continuous operation |
| 06/16/1987 | US4673785 Automatic apparatus for induction hardening |
| 06/16/1987 | US4673447 Prevention of vibration over heating and overcooling in annealing steel |
| 06/16/1987 | EP0225432A2 Heat treatment method and heat treatment apparatus |
| 06/11/1987 | DE3543423A1 Fluidised bed furnace |
| 06/10/1987 | EP0224768A1 Quench bath with a sluice attached thereto |
| 06/10/1987 | EP0224587A1 Method of correcting warping of two-layer clad metal plate |
| 06/09/1987 | US4671496 Fluidized bed apparatus for treating metals |
| 06/09/1987 | CA1222636A1 Method and apparatus for the manufacture of non- allergy creating metal objects |
| 06/09/1987 | CA1222623A1 Apparatus for quenching butt-welded portion of rail |
| 06/04/1987 | DE3542257A1 Device for tempering in a magnetic field |
| 06/03/1987 | CN85204461U Continuous furnace for heat-treatment of metal parts |
| 06/02/1987 | US4669939 Workpiece charger for heating furnace |
| 05/27/1987 | DE3623119C1 Process for the inductive hardening of cylindrical bearing points with transition radii relieved with respect to the adjoining shaft parts and apparatus for carrying out the process |
| 05/27/1987 | CN86202942U Steel pipe continuous controlled cooling equipment |
| 05/26/1987 | US4668309 Rapid magnetic annealing of amorphous metal in molten tin |
| 05/26/1987 | US4668308 Method and apparatus for manufacturing rails |
| 05/21/1987 | WO1987003159A1 Method and apparatus for cooling induction heated material |
| 05/20/1987 | EP0222002A1 Alloy toughening method. |
| 05/20/1987 | CN86104946A Protective heating method used for circulating purification outside industrial electric furnace |
| 05/19/1987 | CA1221895A1 Method of manufacturing high tensile strength steel plates |
| 05/13/1987 | EP0221874A2 A method of hardening steel |
| 05/13/1987 | EP0221329A1 Process and device for quenching annealed stock |
| 05/12/1987 | US4664722 Method for protecting from hardening a selected region of a steel structure |
| 05/06/1987 | EP0220940A2 Process and apparatus for improvement of iron loss of electromagnetic steel sheet or amorphous material |
| 05/06/1987 | CN85107682A Long metallic articles quenching process |
| 05/05/1987 | CA1221297A1 Method and apparatus for direct heat treatment of medium- to high-carbon steel rods |
| 04/28/1987 | US4661676 Process for producing camshaft with cams subjected to remelting chilling treatment |
| 04/28/1987 | EP0205464A4 Inductor for heating railroad railheads. |
| 04/23/1987 | DE3537513A1 Fully automatically operating induction hardening machine |
| 04/22/1987 | CN85109476A Technology for forging and rolling steel ball of high wear resistence and low manganese content |
| 04/21/1987 | US4659375 Method of heating, melting and coal conversion |
| 04/21/1987 | CA1220699A1 Modular cooling process to minimize distortions in metal flats |
| 04/21/1987 | CA1220698A1 Microstructural refinement of cast metal |
| 04/21/1987 | CA1220620A1 Apparatus for optimizing cooling of a generally circular cross-sectional, longitudinal shaped workpiece |
| 04/16/1987 | DE3536684A1 Process for hardening matrix printer needles |
| 04/16/1987 | DE3536609A1 Device for heat-treating steel pipes |
| 04/15/1987 | EP0217991A1 Ceramic material coatings |
| 04/14/1987 | US4658111 Method for hardening a surface of a cam provided on a camshaft |
| 04/14/1987 | CA1220381A1 Feeder for pulverized coal |
| 04/08/1987 | EP0216985A2 Thermal insulation of an induction heat tunnel |
| 04/07/1987 | US4655851 Simultaneous carburizing and boronizing of earth boring drill bits |
| 04/02/1987 | DE3626849C1 Salt baths for the heat treatment of steels |
| 04/02/1987 | DE3535230A1 Apparatus for the production of metal glass |
| 04/02/1987 | DE3534796A1 Method and apparatus for shaping metal sheets and plates |
| 04/01/1987 | EP0216561A2 Preheating method of steel strips |
| 04/01/1987 | EP0216457A1 Method of producing two-phase separation type Fe-Cr-Co series permanent magnets |
| 04/01/1987 | EP0216434A1 Method and apparatus for the treatment of steel wires |
| 04/01/1987 | EP0216132A1 Method and apparatus for heating and cooling a work piece |
| 04/01/1987 | EP0216067A1 Process and apparatus for removing alkali nitrite from salt baths containing nitrate |
| 04/01/1987 | EP0215830A1 Plant for cooling by spraying means. |
| 03/31/1987 | US4653732 Multi-chamber vacuum furnace for heat-treating metal articles |
| 03/26/1987 | DE3631389A1 Process for enriching the atmosphere of furnaces for the thermochemical treatment of metal components |
| 03/26/1987 | DE3533493A1 Process for producing components from steel of high strength and at the same time high toughness, having these properties even after hot deformation |
| 03/25/1987 | EP0215032A1 Process and installation to permit the assembly line thermo-mechanical working, with little deformation of workpieces; also application of the process. |
| 03/25/1987 | CN86201704U Energy-saving glow ion furnace in which the polarity is changeable |
| 03/25/1987 | CN85106726A Magnetic field heat treatment of steel with medium magnetic field strength |
| 03/24/1987 | US4652723 Method for heat treating with a microwave plasma torch |
| 03/24/1987 | US4652423 Positioning electromagnet in vertical nuclear reactor vessel, uniform heat |
| 03/24/1987 | US4652316 Production of grain oriented steel |
| 03/24/1987 | CA1219514A1 Process for cooling batches in discontinuously operating industrial furnaces, in particular of steel wire or steel band bundles in hood type annealing furnaces |
| 03/18/1987 | EP0214542A2 Thickener systems for functional fluids containing a large amount of water, and such functional fluids containing these thickener systems |
| 03/11/1987 | EP0213471A2 Surface heat treating apparatus |
| 03/11/1987 | EP0213333A2 Method and device for hardening steel plates |
| 03/10/1987 | US4649248 Annealing furnace for annealing magnetic cores in a magnetic field |
| 03/10/1987 | US4648916 Method of controlling cooling of hot-rolled steel sheet and system therefor |
| 03/03/1987 | US4647017 Vacuum heat treating furnace and quench system with drop transfer |
| 02/25/1987 | EP0211310A2 Method for forming surface layer by electric discharge process |
| 02/24/1987 | US4645547 Loss ferromagnetic materials and methods of improvement |