| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 05/10/1995 | EP0652300A1 Case nitriding for producing a high-strength austenitic skin in stainless steels |
| 05/09/1995 | US5414246 Apparatus for scaleless induction heating |
| 05/09/1995 | US5413314 Spray unit for cooling extruded sections |
| 05/04/1995 | WO1995011999A1 Process for annealing items and suitable annealing furnace |
| 05/03/1995 | EP0651060A1 Process for producing extra high tensile steel having excellent stress corrosion cracking resistance |
| 05/03/1995 | EP0651059A1 process for producing extra high tensile steel having excellent stress corrosion cracking resistance |
| 05/03/1995 | EP0650776A1 Device for cooling rolled strips |
| 05/02/1995 | US5411812 Steel substrate with metal coating formed by dipping in a zinc or zinc alloy melt |
| 05/02/1995 | US5411613 Method of making heat treated stainless steel needles |
| 05/02/1995 | US5411612 Method of scaleless induction heating |
| 05/02/1995 | US5411605 Aluminum and iron |
| 04/27/1995 | DE4335710A1 Apparatus for the differentiated cooling of wide flat products (universal-plate products) |
| 04/26/1995 | CN1028298C Heat treatment process for super-hard high-speed steel of vanadium trinitride |
| 04/25/1995 | US5409748 Aluminide layer and an aluminum diffusion sublayer; alloy coating layer and a ceramic protective coating; resistant to high temperature oxidation corrosion |
| 04/25/1995 | US5409554 Prevention of particle embrittlement in grain-refined, high-strength steels |
| 04/20/1995 | DE4423832A1 Process for the inductive surface hardening (skin hardening) of hollow shafts |
| 04/19/1995 | EP0648854A1 Martensitic hot work tool steel die block article and method of manufacture |
| 04/19/1995 | EP0648852A1 Hot-isostatically-compacted martensitic steel article for molds and die components and its method of manufacture |
| 04/18/1995 | US5407544 Method for removal of certain oxide films from metal surfaces |
| 04/18/1995 | US5407498 Diffusion of an active element into metal surface |
| 04/18/1995 | US5407497 Localized heating of weld to first critical temperature, cooling to below 100 degrees celcius, heating to second critical temperature lowr than first; annealing |
| 04/18/1995 | US5407180 Heat treat furnace system for performing different carburizing processes simultaneously |
| 04/18/1995 | US5406706 Forming iron alloy column, forming shaft hole, hardening, tempering |
| 04/13/1995 | WO1995009736A1 Device at railway wheels and method for obtaining said device |
| 04/12/1995 | EP0647726A1 Method for treatment of pieces |
| 04/12/1995 | EP0647724A1 Process for manufacturing flat products from zirconium alloy, including a reheating treatment by infrared radiation in the beta range |
| 04/12/1995 | EP0647720A1 Method and device for selectively and ecologically colouring metal surfaces |
| 04/12/1995 | EP0647498A2 Process for machining a workpiece, using laser beam with increase of the absorption grade of the workpiece surface |
| 04/11/1995 | US5405463 Continuous annealing process of producing cold rolled mild steel sheet excellent in deep drawability and aging resistibility |
| 04/11/1995 | US5405122 Apparatus for annealing/magnetic annealing amorphous metal in a fluidized bed |
| 04/05/1995 | EP0646656A1 Sheet steel excellent in flanging capability and process for producing the same |
| 04/05/1995 | EP0646653A1 Heat treated stainless steel needles and methods of making same |
| 04/04/1995 | US5402994 Device for heat-treating metal workpieces |
| 03/29/1995 | EP0645461A1 Heat treatment by plasma electron heating and solid/gas jet cooling |
| 03/28/1995 | US5401339 Atmospheres for decarburize annealing steels |
| 03/28/1995 | US5401006 Quench press |
| 03/23/1995 | WO1995007775A1 Method and device for manufacturing cold rolled metal sheets or strips, and metal sheets or strips obtained |
| 03/23/1995 | WO1995007774A1 Method and device for manufacturing cold rolled metal sheets or strips, and metal sheets or strips obtained |
| 03/23/1995 | CA2169632A1 Method and device for manufacturing gold rolled metal sheets or strips, and metal sheets or strips obtained |
| 03/22/1995 | CN1100474A Intermediate-frequency induction heating apparatus for switch tongue |
| 03/22/1995 | CN1100472A Pulse current treatment for producing iron-base nano-meter crystal material |
| 03/21/1995 | US5399207 Nitriding or oxidation of zirconium or titanium, heating in fluidized bed |
| 03/15/1995 | EP0643142A2 Prevention of particle embrittlement in grain-refined, high strength steels |
| 03/15/1995 | CN1027907C Process for hardening cutting edges of saws, blades and punching dies |
| 03/14/1995 | US5397871 Light beam heating system with inert gas shield |
| 03/08/1995 | CN1099808A Tech. for preparing alloy ultro-micro partical by heat treatment precipitation electrochemistry extraction |
| 03/07/1995 | US5395463 Method and arrangement for reduction annealing of iron powder |
| 03/07/1995 | CA2046851C Apparatus and method of induction-hardening machine components with precise power output control |
| 03/03/1995 | CA2105423A1 Method and apparatus for carrying out surface processes |
| 03/01/1995 | EP0640693A1 Paper knife and method of manufacturing |
| 03/01/1995 | EP0640692A1 Magnetic strips and methods for making the same |
| 03/01/1995 | CA2130682A1 Magnetic strips and methods for making the same |
| 02/28/1995 | US5393953 Electron-beam heating apparatus and heating method thereof |
| 02/28/1995 | US5393575 Method for carrying out surface processes |
| 02/28/1995 | US5393358 Method for producing abrasion-resistant steel having excellent surface property |
| 02/28/1995 | CA2206714A1 Heat treatment by plasma electron heating and solid/gas jet cooling |
| 02/28/1995 | CA2130413A1 Heat treatment by plasma electron heating and solid/gas jet cooling |
| 02/23/1995 | WO1995005487A1 Process and device for exchanging the atmosphere in a hood type annealing furnace |
| 02/22/1995 | EP0639651A1 Intercritical heat treatment of cast iron workpieces |
| 02/22/1995 | CN1099070A Long service life cylinder sleeve reinforcement method |
| 02/21/1995 | US5391862 Induction heating system for a near net shaped gear blank |
| 02/21/1995 | US5390900 Metal strip cooling system |
| 02/21/1995 | US5390414 Gear making process |
| 02/16/1995 | WO1995004615A1 Zone heating apparatus |
| 02/16/1995 | DE4327440A1 Process for the thermochemical-thermal treatment of hardened steels, heat-treatable steels and bearing steels |
| 02/15/1995 | EP0638734A1 A flexible drive shaft and method of production thereof |
| 02/15/1995 | EP0638652A1 Process for hardening metal workpieces |
| 02/15/1995 | EP0638147A1 Process for producing a component with at least one divided bearing surface for rolling elements. |
| 02/15/1995 | CN2189610Y 喷雾嘴 Spray nozzle |
| 02/15/1995 | CN1027653C Heat treatment method of medium-carbon manganese steel and low-carbon manganese steel manufactures |
| 02/15/1995 | CN1027652C Thermal-interrupted chilling technology of Bei iron and steel work |
| 02/08/1995 | CN1098440A Production of grain-oriented magnetic steel plate with improved loss of remagnetization |
| 02/08/1995 | CN1027598C Molybdenum-contained bainite low alloy steel and it heat-treatment process |
| 02/07/1995 | CA1334247C Internal gas generator for heat treating furnace |
| 02/02/1995 | WO1995003439A1 A method for removal of certain oxide films from metal surfaces |
| 02/02/1995 | CA2145167A1 A method for removal of certain oxide films from metal surfaces |
| 02/01/1995 | EP0636189A1 Method of producing a protective or reactive gas for the heat treatment of metals |
| 02/01/1995 | CN2188590Y Plate spring vertical hardening apparatus controlled by computer |
| 01/31/1995 | US5385337 Control system for a soft vacuum furnace |
| 01/26/1995 | WO1995002705A1 Warm forming high strength steel parts |
| 01/26/1995 | WO1995002475A1 Bending method for metallic objects |
| 01/25/1995 | CN1097816A Surface intensifying treatment method for high corrosion-resistance wear-resistance oil pump |
| 01/25/1995 | CN1097662A Heat treatment of metal castings and in-furnace sand reclamation |
| 01/24/1995 | CA2128396A1 Method for the preparation of a hardening salt in lump form |
| 01/19/1995 | WO1994024840A3 Thin film heat treatment apparatus |
| 01/18/1995 | CN1097398A Method and apparatus for preparing nitrogen atmosphere by barrier separation for metallic heat treatment |
| 01/17/1995 | US5382307 Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatigue resistance |
| 01/17/1995 | US5382306 Adjustable nozzles, aluminum or alloys |
| 01/17/1995 | CA1333988C Ultra-rapid annealing of nonoriented electrical steel |
| 01/11/1995 | EP0633439A1 Cooled rolls for handling products, especially metallurgical and siderurchical products |
| 01/11/1995 | EP0633078A1 Method of fabricating a hollow steel body with an inner- and/or outer profiling |
| 01/11/1995 | EP0632842A1 Heat treatment process for metal articles. |
| 01/10/1995 | CA2127343A1 Cooled rollers used in metallurgical products handling |
| 01/05/1995 | DE4321094A1 Forge hardening |
| 01/04/1995 | EP0632137A1 Process for the thermal pretreatment of metallic articles |
| 01/04/1995 | CN1027293C Iron base shape memory alloy with good cold working quality |
| 01/03/1995 | US5378879 For use in an alternating magnetic field |
| 01/03/1995 | US5378295 Iron-type material of specified composition and carbon equivalent annealed, shaped and then quenched |
| 01/03/1995 | US5377959 Apparatus for improving service life of thermite rail welds |
| 12/28/1994 | EP0630978A1 Oxy-fuel flame impingement heating of metals |