| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 04/07/1999 | CN1213005A Process for manufacturing strip made of alloy of iron-nickel type from continuously cast thin strip |
| 04/06/1999 | US5891275 Model-assisted process for the controlled cooling of hot strip and plate in a computer-guided rolling and cooling process |
| 04/06/1999 | US5891212 The invention relates to making uniformly sized metallic spheres for use in solder compositions. |
| 04/06/1999 | CA2099761C Vehicle suspension member and method for making |
| 04/01/1999 | WO1999015305A1 A roll assembly for use at high temperature and method of making same |
| 04/01/1999 | WO1999002742A3 Method for manufacturing high magnetic flux density grain oriented electrical steel sheet based on low temperature slab heating method |
| 04/01/1999 | DE19844156A1 Low cost, long life steel roller bearing |
| 04/01/1999 | CA2297917A1 A roll assembly for use at high temperature and method of making same |
| 03/31/1999 | EP0905263A1 Process for manufacturing iron-nickel alloy strip from a continuously cast thin strip |
| 03/31/1999 | EP0905262A1 Heating method and heating apparatus |
| 03/31/1999 | EP0904860A2 Method and installation for manufacturing biconical wire |
| 03/31/1999 | EP0904859A1 Method for the development of beneficial residual stresses in rails or beams |
| 03/31/1999 | EP0904417A1 Method for the manufacturing of cutting tools |
| 03/31/1999 | EP0733027B1 Coating systems for glass with improved wet adhesion retention |
| 03/31/1999 | CN1212358A Composite heel block for billet heating furnace and its manufacturing technology |
| 03/31/1999 | CN1212357A Composite heel block for billet heating furnace and its manufacturing technology |
| 03/31/1999 | CN1212189A Process for manufacturing thin strip of ferritic stainless steel, and thin strip thus obtained |
| 03/31/1999 | CN1042749C Producing process for biphase cast steel hook for locomotive |
| 03/30/1999 | CA2036647C Method of producing grain oriented silicon steel sheets having improved magnetic properties and bending properties |
| 03/26/1999 | CA2248429A1 Sectional elements |
| 03/25/1999 | WO1999014383A1 Hot rolling high-strength steel structural members |
| 03/25/1999 | WO1999013999A1 Method and device for cooling metals in a metal works |
| 03/24/1999 | EP0903414A1 Device for the continuous heat treatment of steel strip or the like |
| 03/24/1999 | EP0685696B1 Sealing device for doorways of partitions of continuous annealing furnace, continuous coating equipment, and the like |
| 03/24/1999 | CN1211633A Bainitic steel rail with high-quantity binding character in its welding area |
| 03/24/1999 | CN1211626A Quench hardening technique and device for cold-rolling roll |
| 03/23/1999 | US5885523 Device for continuously annealing continuously formed metallic goods |
| 03/23/1999 | US5885522 Method and apparatus for heat treating and straightening structural members |
| 03/23/1999 | US5885382 Primary cooling method in continuously annealing steel strip |
| 03/23/1999 | US5885379 Tempered powdered metallurgical construct and method |
| 03/23/1999 | US5885374 Process for producing grain oriented silicon steel sheet and decarburized sheet |
| 03/23/1999 | US5884527 Gear wheels rolled from powder metal blanks |
| 03/23/1999 | CA2125540C Stainless steel wire product |
| 03/18/1999 | DE19740691A1 Method and apparatus for metal cooling in steelworks |
| 03/17/1999 | EP0902094A1 Process for manufacturing a mechanical workpiece with at least one part surface hardened by induction and workpiece obtained |
| 03/17/1999 | CN2310769Y Heat treatment apparatus for whole length of super-strength anchor rod body |
| 03/17/1999 | CN1211285A Drawing stock for reinforcing plastic a rubber articles |
| 03/17/1999 | CN1210898A Process for producing cement nail by using low carbon steel and cementation furnace |
| 03/11/1999 | DE19744815C1 Method for determining and controlling material flow during continuous casting of slabs |
| 03/11/1999 | DE19743802A1 Press forming of a low alloy steel part with an increased ductility region |
| 03/10/1999 | EP0900852A2 Process for manufacturing gear wheels |
| 03/10/1999 | EP0900851A1 Production method of a heat-teated steel member |
| 03/10/1999 | EP0900622A1 Method of bonding two-phase stainless steel |
| 03/10/1999 | CN1210052A Method of manufacturing gear wheel |
| 03/09/1999 | US5881354 Sintered hi-density process with forming |
| 03/09/1999 | US5879480 Melting a high speed steel along the surface of the machine component |
| 03/09/1999 | US5879479 Method of making ultra low-carbon steel |
| 03/09/1999 | US5879474 Producing wear and rolling contact fatigue resistant rail by hot rolling steel of specified composition, cooling naturally in air or by accelerated cooling |
| 03/09/1999 | US5878496 Method of manufacturing a component |
| 03/09/1999 | US5878491 Process for the manufacture of a forged connecting rod |
| 03/04/1999 | DE19737111A1 Gearwheel for heavy machine gears |
| 03/03/1999 | EP0899355A1 Method of case hardening a roller chain pin |
| 03/03/1999 | EP0899346A2 Workpiece carrier for heat treatment of workpieces |
| 03/03/1999 | EP0899052A1 Method of manufacturing filled wire with recrystallization anneal |
| 03/03/1999 | EP0899035A2 Method and apparatus for tempering knotted coil springs |
| 03/03/1999 | CN1209513A Roller-chain pin after being coated |
| 03/03/1999 | CN1209464A High-toughness thermo-resisting steel, turbine rotor and mfg. method therefor |
| 03/03/1999 | CN1209461A Heat-treatment technology for Chinese ancient double-edged sword |
| 03/03/1999 | CN1042348C Method for mfg. of water-hardened steel conveyer belt by using non-hardened and tempered belt steel |
| 03/02/1999 | US5876522 Process and device for inline pickling of hot strips downstream of thin-slab production installations |
| 03/02/1999 | US5875831 Process for producing continuously metallic coil |
| 03/02/1999 | CA2040786C Method for descaling hot-rolled stainless steel strip |
| 02/28/1999 | CA2245454A1 Method and apparatus for tempering knotted coil springs |
| 02/25/1999 | WO1999009232A1 Metallurgical vessel |
| 02/25/1999 | WO1999009222A1 Method for producing a high-strength track element and track element thus obtained |
| 02/25/1999 | DE19732809A1 Schienenrad mit verschleißoptimierter Lauffläche Rail wheel with wear-optimized tread |
| 02/24/1999 | CN1209174A Bake hardenable vanadium contg. steel |
| 02/24/1999 | CN1208969A Case of battery formation material mfg. method, and material for forming battery case |
| 02/24/1999 | CN1042241C Equipment and method for quenching railway switch sharp rail head from the section 5 mm apart from the pointed end |
| 02/23/1999 | US5873961 Quickly heating steel wire to austenize, then continuously cooling in air to transform austenite into pearlite with momentary heating from recalescence, final cooling, brass plating, cold drawing wire; high tensile strength |
| 02/23/1999 | US5873958 High strength and high toughness steel wires and method for making the same |
| 02/23/1999 | US5873957 Hot-rolled sheet steel for deep drawing |
| 02/23/1999 | US5873956 Case hardened stainless steels; corrosion resistance, rolling fatigue strength, wear resistance |
| 02/23/1999 | CA2128019C High-strength steel parts and method of making |
| 02/18/1999 | WO1999007907A1 Thick cold rolled steel sheet excellent in deep drawability and method of manufacturing the same |
| 02/18/1999 | WO1999007904A1 Face-gear forging method |
| 02/18/1999 | WO1999007903A1 Improvements in and relating to handling materials |
| 02/18/1999 | WO1999007495A2 Method for producing steel rolling bearing rings |
| 02/18/1999 | DE19735285A1 High strength steel rail part especially switch-point component |
| 02/18/1999 | CA2299499A1 Method for producing steel rolling bearing rings |
| 02/17/1999 | EP0897017A1 Tower furnace for heat treatment of metal strips |
| 02/17/1999 | EP0896554A1 Ferritic nitrocarburization process for steel balls |
| 02/17/1999 | CN2307795Y Compound block for steel billet heating furnace |
| 02/16/1999 | US5871806 Carburizing the object under a carburizing atmosphere in a carburizing zone, cooling with gas, and nitriding with nitriding gas in nitriding zone |
| 02/16/1999 | US5871689 Inductive heating of billets of metal alloys having thixotropic properties, and for holding and transporting |
| 02/16/1999 | US5871688 Multi-stack annealer |
| 02/16/1999 | US5871686 Device for cooling a rolled product |
| 02/16/1999 | US5871596 By forming rods into series of rings |
| 02/16/1999 | CA2070180C Gear wheels rolled from powder metal blanks |
| 02/12/1999 | CA2245046A1 Process for manufacturing a flux-cored wire with recrystallization annealing |
| 02/11/1999 | WO1999006735A1 One-piece flywheel having outer ring gear portion, and process of manufacturing the same |
| 02/11/1999 | WO1999006226A1 Rail wheel with bearing surface with optimised resistance to wear |
| 02/10/1999 | EP0828862B1 Martensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles |
| 02/10/1999 | CN2307007Y Steel pipe rotary device |
| 02/10/1999 | CN2307004Y Water spray device in steel pipe |
| 02/09/1999 | US5869811 Method and equipment for bringing metal alloy ingots, billets and the like to the semisolid or semiliquid state in readiness for thixotropic forming |
| 02/09/1999 | US5868996 Device for manufacturing curved helical springs |
| 02/09/1999 | US5868994 Constant current needle annealing |
| 02/09/1999 | US5868878 Forming an ionized gas plasma around the workpiece |
| 02/09/1999 | US5868871 A preheating chamber, six carburizing chambers, a cooling chamber, a reheating chamber, a quenching chamber are placed around an intermediate chamber having a transport device; high-frequency induction heating technique |