| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 12/17/1997 | EP0812366A1 Variable-width induction heater |
| 12/17/1997 | EP0812365A1 Methods for annealing and pickling high manganic cold rolled steel sheet |
| 12/17/1997 | EP0812247A1 Determining, controlling electrical resistance |
| 12/17/1997 | CN2270734Y Redox fire head of stem machine |
| 12/17/1997 | CN1036726C Device for monitoring breakage of steel strip |
| 12/16/1997 | US5697778 Daisywheel convector plate for batch coil annealing furnace |
| 12/11/1997 | WO1997046720A1 Process for producing an easily shaped cold-rolled sheet or strip |
| 12/11/1997 | DE19638008C1 Apparatus for simultaneous circumferential inductive hardening |
| 12/11/1997 | CA2251354A1 Process for producing an easily shaped cold-rolled sheet or strip |
| 12/10/1997 | EP0811699A1 Constant current needle annealing |
| 12/10/1997 | EP0811698A1 Method of cooling a steel pipe |
| 12/10/1997 | EP0811697A2 Method and apparatus for carburizing, quenching and tempering |
| 12/10/1997 | EP0811081A1 Method for producing a steel sheet or strip for making a can, and resulting steel sheet or strip |
| 12/10/1997 | EP0715550B1 Rolling of metal strip |
| 12/10/1997 | CN2270055Y Ring heating furnace for continuous casting and rolling |
| 12/10/1997 | CN2270054Y IF induction annealing device for galvanized wire |
| 12/10/1997 | CN1167158A Quenching agent for steel wire |
| 12/10/1997 | CN1167157A Method for making ultralow carbon cold-rolled steel plate |
| 12/09/1997 | US5695666 Method of welding neutron irradiated metallic material |
| 12/04/1997 | WO1997045565A1 Relaxation-resistant steel spring |
| 12/04/1997 | WO1997045563A1 Permanent way component and process for its production |
| 12/04/1997 | WO1997045562A1 Process for producing a permanent way component and such a component |
| 12/04/1997 | WO1997045228A1 Track section and method of joining part tracks |
| 12/04/1997 | CA2256384A1 Relaxation-resistant steel spring |
| 12/03/1997 | EP0810294A1 Heat treatable stainless steel for combustion engine valves |
| 12/02/1997 | US5693288 Used for heat treating a metallic stri with no formation of oxide film on the surface; improved sealability |
| 11/27/1997 | WO1997044498A1 Widthwise uniform cooling system for steel strip in continuous steel strip heat treatment step |
| 11/27/1997 | WO1997044147A1 Process for shaping a flat metal workpiece |
| 11/27/1997 | DE19620196A1 Verfahren zum Umformen eines flächigen Metallwerkstückes Method for forming a planar metal workpiece |
| 11/26/1997 | EP0808672A1 Method and installation for manufacturing stainless steel or carbon steel plates from casted thin slabs |
| 11/26/1997 | CN1165865A Heat treatment process of medium-high carbon low alloyed steel forged ball and overhead rollaway type quenching appts. |
| 11/25/1997 | US5690757 Cold rolling, annealing; drawing; pulling tension |
| 11/25/1997 | US5690756 Method for producing cast iron gear |
| 11/25/1997 | US5690485 Combustion system for a steckel mill |
| 11/20/1997 | WO1997043591A1 Dry roll furnace arrangement |
| 11/20/1997 | DE19613719C1 Stress-free rail production method |
| 11/19/1997 | EP0807692A1 Method of cooling structural steel beams |
| 11/19/1997 | EP0807591A1 Air cushion nozzle and heat treatment apparatus for a running web with air cushion nozzles |
| 11/18/1997 | US5688419 Method for mitigating residual stresses in welded metal components using high torch travel speeds |
| 11/18/1997 | US5688339 Oxy-fuel flame impingement heating of metals |
| 11/15/1997 | CA2205647A1 Air-cushion nozzle for drying apparatus |
| 11/13/1997 | WO1997042351A1 Making metal powder articles by sintering, spheroidizing and warm forming |
| 11/13/1997 | CA2252745A1 Making metal powder articles by sintering, spheroidizing and warm forming |
| 11/12/1997 | EP0806490A1 Heat resisting steel and steam turbine rotor shaft |
| 11/12/1997 | EP0806485A1 Heat treatment installation |
| 11/12/1997 | EP0671982B1 Zone heating apparatus |
| 11/12/1997 | CN1164836A Steel pipe manufacturing method and apparatus and steel pipe |
| 11/11/1997 | US5685088 Sealing apparatus for inlet/outlet of atmosphere facility |
| 11/11/1997 | CA2204928A1 Method for heat treatment of a rail joint which is produced by fusion welding, and a burner arrangement which is intended for use in such a method |
| 11/06/1997 | WO1997041265A1 Method for the manufacturing of cutting tools |
| 11/06/1997 | DE19619049A1 Continuous heat treatment furnace for strip-like material |
| 11/05/1997 | EP0805218A1 Draining station and heat treatment installation comprising such a drain station |
| 11/05/1997 | EP0804623A1 Improvements in and relating to carbide-free bainitic steels and methods of producing such steels |
| 11/05/1997 | EP0804622A1 Method for heat treatment of steel, and products of steel |
| 11/05/1997 | EP0804308A1 Heat treating and removing cores from castings |
| 11/04/1997 | US5683651 Method and assembly for sealing up the entrance and exit of a heat-treating furnace operated in a gas atmosphere containing hydrogen gas |
| 11/04/1997 | US5683521 Reducing thickness of oxide film by electropolishing; low temperature annealing |
| 10/30/1997 | WO1997039889A1 Ferritic nitrocarburization process for steel balls |
| 10/30/1997 | WO1997039843A1 Seamless steel pipe manufacturing method and equipment |
| 10/30/1997 | DE19713701A1 Development of compressive residual stresses in corrosion resistant steels and superalloys |
| 10/29/1997 | EP0803583A2 Primary cooling method in continuously annealing steel strips |
| 10/28/1997 | US5681525 Cast refractory base segments and modular fiber seal system for single-stack annealing furnace |
| 10/28/1997 | CA2037316C Cold-rolled steel sheets or hot-dip galvanized cold-rolled steel sheets for deep drawing |
| 10/23/1997 | WO1997039154A1 Vertical annealing furnace for a strip treatment device |
| 10/23/1997 | DE19624598C1 Press seating joint face production on steel shaft |
| 10/23/1997 | DE19613718C1 Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband Method and apparatus for producing hot-rolled steel strip |
| 10/22/1997 | CN1162982A Bake hardenable vanadium containing steel |
| 10/22/1997 | CN1162653A Process for producing ferritic stainless steel having improved corrosion resistance, especially resistance to intergranular and pitting corrosion |
| 10/21/1997 | US5679307 Facility for in-line heat treatment of hot-rolled products |
| 10/21/1997 | US5678831 Sealing device of compartment gateways of continuous annealing furnaces and continuous painting equipments |
| 10/16/1997 | WO1997037788A1 Method of manufacturing a component |
| 10/16/1997 | DE19621018C1 Rail track component e.g. frog with layered structure |
| 10/16/1997 | DE19614586A1 Annealing of continuous metal products |
| 10/15/1997 | EP0801214A1 Poppet valve and method of manufacturing it |
| 10/15/1997 | EP0801041A2 Coating system for glass adhesion retention |
| 10/15/1997 | CN2264747Y Iron casing for protecting upper and lower sliding block |
| 10/14/1997 | US5676769 Treating material is pretreated to a preferential temperature in carburization atomosphere supplied with hydrocarbon and oxidizing gas then reheating to a specific temperature, laminar flow oil quenching and hardening |
| 10/14/1997 | US5676767 Continuous process and reel-to-reel transport apparatus for transverse magnetic field annealing of amorphous material used in an EAS marker |
| 10/12/1997 | CA2201996A1 Device and method for continuously annealing continuously formed metallic goods |
| 10/09/1997 | WO1997036699A1 Method and arrangement for producing hot-rolled steel strip |
| 10/09/1997 | DE19637464C1 Wear resistant camshaft |
| 10/09/1997 | DE19621019C1 Railway track section |
| 10/08/1997 | EP0728052A4 Continuously cast steel strip |
| 10/08/1997 | EP0675782B1 Tool |
| 10/08/1997 | CN1161378A Process for producing dual phase ferritic stainless steel strip |
| 10/02/1997 | WO1997036112A1 Laminated composite material and method of improving the surface hardness of laminated composite materials |
| 10/02/1997 | WO1997036016A1 Low-alloy heat-treated pearlitic steel rails with excellent wear resistance and welding characteristics and process for production thereof |
| 10/02/1997 | DE19612969A1 Fixing of bearing bolt in valve rocker levers |
| 10/01/1997 | EP0798489A2 Helical compression spring and method for producing same |
| 10/01/1997 | EP0798390A1 Method for cooling roll hot steel shapes |
| 10/01/1997 | EP0798059A1 Method of production of a blank for a forged connecting rod |
| 10/01/1997 | CN1160770A Steel ball making process |
| 09/30/1997 | US5672217 Method for producing machine elements of steel |
| 09/30/1997 | US5671628 Laser shock peened dies |
| 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 |
| 09/29/1997 | CA2201252A1 Procedure for the manufacture of a forged blank connecting rod |
| 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 | DE19651392A1 Case-chilled cast iron camshaft containing lanthanum |
| 09/23/1997 | US5670072 Method and apparatus for joining metal components with mitigation of residual stresses |