| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 10/08/1997 | CN1161378A Process for producing dual phase ferritic stainless steel strip |
| 10/07/1997 | US5674309 Diameter of the gas injector and position relative to the container opening and an interior sidewall produces a gas jet with a reynold's number less than 14,000 |
| 10/02/1997 | WO1997036112A1 Laminated composite material and method of improving the surface hardness of laminated composite materials |
| 10/01/1997 | EP0798391A1 Method and device for heat treating metallic workpieces |
| 10/01/1997 | EP0798390A1 Method for cooling roll hot steel shapes |
| 10/01/1997 | CN1160770A Steel ball making process |
| 09/30/1997 | US5672218 Straightening bar between rollers, machining to remove hardened surface layer, rolling again at lower pressure |
| 09/30/1997 | US5672217 Method for producing machine elements of steel |
| 09/30/1997 | CA2200258A1 Method of cooling steel sections which are hot from rolling |
| 09/30/1997 | CA2103030C Apparatus for and method of induction-hardening machine components |
| 09/25/1997 | WO1997035039A1 A method for manufacturing of curved and quenched profiled elements and a die tool for carrying out the method |
| 09/25/1997 | DE19610722A1 Production of protective or reaction gases |
| 09/24/1997 | EP0796920A1 Quenching device for metal workpieces |
| 09/24/1997 | EP0796919A1 Process and plant for thermal treatment of metals in protecting atmosphere |
| 09/24/1997 | EP0796353A1 Method of heat-treating oxygen-sensitive products |
| 09/24/1997 | CN1160083A Method for automatic determination and control of heating time during heat treatment |
| 09/23/1997 | US5670081 Salt compositions and functional fluids using same |
| 09/23/1997 | US5670072 Method and apparatus for joining metal components with mitigation of residual stresses |
| 09/23/1997 | US5669992 Bumper beam making process |
| 09/18/1997 | WO1997034326A1 Amorphous-crystalline thermocouple and methods of its manufacture |
| 09/17/1997 | EP0795616A1 Process for continuously heat treating metal strip in different atmospheres |
| 09/17/1997 | EP0795615A1 Method and device for inductive surface hardening of workpieces |
| 09/17/1997 | EP0795038A1 Sprocket and manufacturing method thereof |
| 09/17/1997 | CN1035889C Electric thin steel sheet |
| 09/16/1997 | US5667605 Method of fabrication of a piece of structural steel, and the steel fabricated thereby |
| 09/16/1997 | US5667603 Hardening process and apparatus for holed flat parts |
| 09/12/1997 | WO1997033011A1 Method for making sputtering targets from an aluminium alloy |
| 09/12/1997 | CA2197146A1 Variable soft cooling header |
| 09/11/1997 | DE19633758C1 Railway rail processing |
| 09/10/1997 | EP0794263A1 Method for producing a protective atmosphere for heat treatment furnace and heat treatment apparatus |
| 09/10/1997 | EP0794262A1 A temperature-raising bainite forming process |
| 09/10/1997 | EP0794028A1 Structural girder made out of at least one web and one flange welded by energy radiation with bending stress compensation |
| 09/10/1997 | EP0794022A2 Method, device and cooling medium for the cooling of profiles |
| 09/09/1997 | US5666287 Quench-hardening testing method and apparatus |
| 09/09/1997 | US5665303 Arrangement for heat treatment of steel wire |
| 09/09/1997 | US5665182 High-carbon steel wire rod and wire excellent in drawability and methods of producing the same |
| 09/09/1997 | US5665181 Method and production plant for producing hot-rolled wide strip |
| 09/09/1997 | US5665179 Process for producing a coil spring |
| 09/03/1997 | EP0792940A1 Method and apparatus for heat treatment including H2/H2O furnace region control |
| 09/02/1997 | US5662747 Bainite wire rod and wire for drawing and methods of producing the same |
| 08/28/1997 | DE19606954A1 Conveying sinter material occurring during rolling |
| 08/27/1997 | EP0479798B1 A plant for conductive electrical heating of steel blanks |
| 08/26/1997 | US5660650 Method and apparatus for correcting the hardening deformation of annular elements |
| 08/26/1997 | US5660647 Rolling element is made of alloy steel containing carbon, vanadium, chromium, manganese, silicon, molybdenum and iron |
| 08/26/1997 | CA2021677C Multi-walled tubular member and method of forming |
| 08/21/1997 | WO1997029879A1 Cutting die and method of forming |
| 08/21/1997 | WO1997029878A1 Cutting die and method of making |
| 08/21/1997 | WO1997020955A3 Skid mounted precision heat treat system |
| 08/21/1997 | CA2245866A1 Cutting die and method of making |
| 08/20/1997 | EP0790320A1 Bell type furnace |
| 08/20/1997 | EP0790041A2 Implantable vascular and endoluminal stents |
| 08/19/1997 | US5658527 Temperature detector gives signal in case of rapid temperature increase |
| 08/19/1997 | US5658402 High-carbon steel wire rod and wire excellent in drawability and methods of producing the same |
| 08/19/1997 | US5658399 Bainite wire rod and wire for drawing and methods of producing the same |
| 08/19/1997 | CA2072211C Heat treatment apparatus and methods of repair of turbine blades |
| 08/13/1997 | EP0789210A1 Continuous cooling and transport installation for annealed products |
| 08/13/1997 | EP0789093A1 Process for producing directional electrical sheet excellent in glass coating and magnetic properties |
| 08/13/1997 | EP0789084A1 Surface finishing method for a metal member and metal member gained by that method |
| 08/12/1997 | US5656787 Sintered powder metal containing manganese, molybdenum, phosphorous, boron, carbon, iron and other components |
| 08/12/1997 | US5656150 Introducing antifouling agent containing tin and silicon |
| 08/12/1997 | US5656106 Apparatus and method for net shape finishing of gears |
| 08/12/1997 | US5656099 Method of forming oxide passivation film having chromium oxide layer on the surface thereof, and stainless steel having excellent corrosion resistance |
| 08/09/1997 | CA2196029A1 Steel for manufacturing forged parts and manufacturing process for a forged part |
| 08/06/1997 | EP0787812A1 Steel for the manufacture of forgings and process for manufacturing said forgings |
| 08/06/1997 | CN1156186A Steel for manufacture of forging having bainitic structure and process for manufacturing forging |
| 08/05/1997 | US5653937 Method for heat treating an impact beam of automotive vehicle door and a system of the same |
| 08/05/1997 | US5653824 Magnetic strips and methods for making the same |
| 07/31/1997 | WO1997027340A1 Process for improving the tape tension on the surface of a chrome-steel tape drive spindle |
| 07/30/1997 | CN1035518C Water base protective agent for steel parts heating |
| 07/29/1997 | US5651938 High strength steel composition having enhanced low temperature toughness |
| 07/24/1997 | WO1997026388A2 Laser induced surfaces |
| 07/24/1997 | WO1997026385A1 Drawing stock for reinforcing plastic or rubber articles |
| 07/24/1997 | WO1997026379A1 Ready-to-use metal wire and method for producing same |
| 07/24/1997 | DE19634402C1 Producing cam |
| 07/24/1997 | DE19611929C1 Heavy duty steel-backed bearing |
| 07/24/1997 | DE19610322A1 Passivation treatment of piping system for high-purity gas |
| 07/24/1997 | CA2243324A1 Ready-to-use metal wire and method for producing same |
| 07/24/1997 | CA2241316A1 Laser induced improvement of surfaces |
| 07/23/1997 | EP0785402A1 Heat treatment installation for metallic article loads |
| 07/23/1997 | EP0785285A1 Method for producing high tensile strength stainless steel |
| 07/23/1997 | CN2258171Y Induction coil for cam (shaft) mid-frequency chilling |
| 07/22/1997 | US5650027 High-carbon steel wire rod and wire excellent in drawability and methods of producing the same |
| 07/22/1997 | US5650026 Heat treating apparatus and method |
| 07/22/1997 | US5649355 Welding electrode with flat blade and related method of manufacture |
| 07/17/1997 | DE19700862A1 Apparatus for continuous monitoring of quenching effectiveness |
| 07/17/1997 | CA2195163A1 Process for producing dual phase ferritic stainless steel strip |
| 07/16/1997 | EP0784098A1 Heat treatment apparatus for the solution annealing of aluminium alloy components for the aerospace industry |
| 07/16/1997 | CN1154413A Process for heat treatment of steel rail |
| 07/16/1997 | CN1154412A Argon employing heat treating process |
| 07/15/1997 | US5648043 Baffling system for uniformily cooling billet loads |
| 07/15/1997 | US5647920 Process for preparation of corrosion-resistant and wear-resistant alloy |
| 07/15/1997 | US5647918 Bainite wire rod and wire for drawing and methods of producing the same |
| 07/10/1997 | WO1997024571A1 Gas flow furnace |
| 07/10/1997 | WO1997024558A1 Method and apparatus for containing and suppressing explosive detonations |
| 07/10/1997 | WO1997024468A1 Primary cooling method in continuously annealing steel strip |
| 07/10/1997 | WO1997024467A1 Methods for annealing and pickling high manganic cold rolled steel sheet |
| 07/10/1997 | WO1997024465A1 Continuously annealed soft temper blackplates for drawn and ironed cans and deep drawn vessels, and manufacturing method therefor |
| 07/10/1997 | CA2241628A1 Gas flow furnace |
| 07/08/1997 | US5645655 Process to anneal steel strips in an annealing furnace without generating carbon black |
| 07/02/1997 | EP0781855A1 Heat treatment apparatus |