| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 05/03/2007 | WO2007048664A1 Method and installation for the dry transformation of a material structure of semifinished products |
| 05/03/2007 | WO2007048497A1 Method for producing hot strip with a multiphase structure |
| 05/03/2007 | WO2007015859A3 Process for laser rounding and flattening of cylindrical parts |
| 05/03/2007 | DE102005051420A1 Verfahren und Anlage zur trockenen Umwandlung eines Material-Gefüges von Halbzeugen Method and installation for the dry transformation of a material structure of semifinished products |
| 05/03/2007 | CA2625564A1 Method for producing hot strip with a multiphase structure |
| 05/02/2007 | EP1780293A2 Procedure for manufacturing of steel starting material by warm deforming |
| 05/02/2007 | CN2895433Y Tendon running water quenching system apparatus |
| 05/02/2007 | CN2895432Y Furnace hearth of annealing section for zinc-plating production line |
| 05/02/2007 | CN1957096A Method for producing a shaft pertaining to a starter |
| 05/02/2007 | CN1955327A Martensitic stainless steel with excellent machinability |
| 05/02/2007 | CN1955324A Process for removing mixed crystal defect of large rotor forging |
| 05/02/2007 | CN1955322A Homogenization treatment process of SAE8620 carburizing steel |
| 05/02/2007 | CN1313633C Hard hollow alloy ball iron mould material for vehicle mould and its making method |
| 05/02/2007 | CN1313629C Preprocessing technology for processing integral key shaft |
| 05/02/2007 | CN1313628C Method for elimilating shell processing stress |
| 04/26/2007 | US20070089813 Seamless steel tube which is intended to be used as a guide pipe and production method thereof |
| 04/26/2007 | DE102005050371A1 Anlage und Verfahren zum Strahlungshärten einer Beschichtung eines Werkstückes unter Schutzgas System and method for radiation curing a coating of a workpiece under protective gas |
| 04/25/2007 | CN2892880Y Continuous amorphous alloy transformer iron core magnetic field annealing furnace |
| 04/25/2007 | CN1954089A High strength machine parts and shaft excellent in fatigue characteristics, and method for improving fatigue characteristics thereof |
| 04/25/2007 | CN1952344A Method for making super-high-strength anti-corrosion pumping polished rod |
| 04/25/2007 | CN1952216A Drip-feed type gas boriding process |
| 04/25/2007 | CN1952202A Method for quenching high voltage electronic aluminum foil finished products |
| 04/25/2007 | CN1952184A Rotating unit for horizontal quenching machine tool |
| 04/25/2007 | CN1312298C Push rod type resistor furnace for heat treatment |
| 04/25/2007 | CN1311945C High frequency pulse laser induced electrode directional discharging apparatus for roughing roller surface |
| 04/24/2007 | US7208052 Method for carburizing steel components |
| 04/24/2007 | US7207933 Carburized roller member made of high carbon chromium steel |
| 04/24/2007 | US7207102 Method for forming permanent magnets with different polarities for use in microelectromechanical devices |
| 04/19/2007 | WO2007043317A1 Steel material |
| 04/19/2007 | WO2007043316A1 Steel material and process for producing the same |
| 04/19/2007 | WO2007043315A1 Steel material and process for producing the same |
| 04/19/2007 | WO2007043273A1 Method of continuous annealing/hot-dipping of steel sheet containing silicon and apparatus for continuous annealing/hot-dipping |
| 04/19/2007 | US20070084529 High strength and high ductility steel sheet having ultrafine crystalline grain structure obtained by low strain processing and annealing of ordinary low carbon steel, and a method for producing thereof |
| 04/19/2007 | DE10207132B4 Verfahren zum bereichsweisen Verstärken eines Werkstückes mit einem Loch A method for amplifying a region-wise workpiece with a hole |
| 04/18/2007 | CN2890075Y Quenching gear shaft positioning device |
| 04/18/2007 | CN1950532A Seamless steel pipe and method for production thereof |
| 04/18/2007 | CN1948541A Corrosion resistant mould steel |
| 04/18/2007 | CN1948538A Petroleum steel tube capable of anti hydrogen sulfide stress corrosion and its manufacturing method |
| 04/18/2007 | CN1948518A Heat treatment device of scissors products and its method |
| 04/18/2007 | CN1948515A Dual-phase cast steel production technology of hydraulic turbine blade |
| 04/18/2007 | CN1947928A Manufacturing method of block with perfect cold-forging property |
| 04/18/2007 | CN1947927A Method for producing non-hardened and tempered steel-late used for hydraulic support |
| 04/18/2007 | CN1947913A Narrow-gap all position pusle automatic argon arc welding technique for dissimillar nicklel-based alloys |
| 04/18/2007 | CN1311088C Pneumatic steet shot heat treating method and fluidized bed unit |
| 04/18/2007 | CN1311087C Heat treatment method for solving banded structure defect of medium carbon alloy steel |
| 04/18/2007 | CN1310714C Production method of warm- or hot-formed product |
| 04/17/2007 | US7204952 Vacuum furnace for carburizing with hydrocarbons |
| 04/17/2007 | US7204894 Prior to the annealing step, the hot rolled steel coils are placed within the housing of the furnace, hot rolled steel coils are supported on a retaining element secured to a base portion located within the housing of the furnace |
| 04/12/2007 | WO2007040464A1 High silicon niobium casting alloy and process for producing the same |
| 04/12/2007 | WO2007039468A2 A process for raising the tempering resistance of a steel work piece |
| 04/12/2007 | US20070082223 Stainless steel wire, spring and method of manufacturing the spring |
| 04/12/2007 | US20070079912 Weldable component of structural steel and method of manufacture |
| 04/11/2007 | EP1772558A1 Apparatus for selective heat treatment of railway wheels |
| 04/11/2007 | EP1772526A1 Device for improving residual stress of piping |
| 04/11/2007 | EP1771587A2 Method for producing a shaft pertaining to a starter |
| 04/11/2007 | CN2887886Y Vacuum thermal-treatment furnace |
| 04/11/2007 | CN1946511A Powdered metal multi-lobular tooling and method of fabrication |
| 04/11/2007 | CN1946493A Bandes en acier inoxydable austenitique d'aspect de surface mat |
| 04/11/2007 | CN1945084A Process for producing double layer concrete transport pipe |
| 04/11/2007 | CN1944715A Process for producing gear with hard bainite structure on surface |
| 04/11/2007 | CN1944700A Bainite ductile iron grinding ball and its producing process |
| 04/11/2007 | CN1944692A High frequency electric pulse continous heat processing method for cold drawing medium and high carbon steel wire |
| 04/11/2007 | CN1944691A Controlled cooling heat treating process and its device for bainite ductile iron |
| 04/11/2007 | CN1944690A Heat processing method for obtaining fine grain ferrite in medium carbon steel |
| 04/11/2007 | CN1944689A On-line processing method for magnesium alloy wire and strip using high energy electric pulse |
| 04/11/2007 | CN1944688A Heat insulation type multifunction ionic thermal processing device |
| 04/11/2007 | CN1944687A Strong laser induced periodical micro nano method and its device for material surface |
| 04/10/2007 | US7203039 Side reading reduced GMR for high track density |
| 04/05/2007 | WO2007037244A1 Hearth roll |
| 04/05/2007 | US20070074793 stainless steel seamless linepipe has excellent corrosion resistance and resistance to sulfide stress cracking, suitable for linepipes transporting crude oil or natural gas produced from oil wells or gas wells under extremely corrosive environments containing carbon dioxide gas, chlorine ion; mixed phase |
| 04/05/2007 | US20070074792 Method for producing helical springs or stabilizers |
| 04/05/2007 | US20070074789 Method for preparation of steel material |
| 04/05/2007 | DE19955385B4 Äußere Wellenhälfte für Doppelgelenke mit verbesserter Abriebsfestigkeit und verbesserter Haltbarkeit für die Welle sowie Verfahren zu deren Herstellung Outer half wave for constant velocity joints with improved abrasion resistance and improved durability for the shaft as well as processes for their preparation |
| 04/05/2007 | DE19809367B4 Verfahren und Vorrichtung zur Feinbearbeitung von Kolbenlaufbahnen Method and apparatus for finishing piston careers |
| 04/05/2007 | DE102005023952B4 Sicherheitspanzerung zum Schutz gegen Beschuss sowie Verfahren zu ihrer Herstellung Safety armor for protection against fire and processes for their preparation |
| 04/04/2007 | EP1770183A1 Weldable steel of high strenght and high toughness, and method of producing members using the same |
| 04/04/2007 | EP1770181A1 Component for machine structure, method for producing same, and material for high-frequency hardening |
| 04/04/2007 | CN2885882Y Induction heating supporting and clamping device for oil pumping polished rod |
| 04/04/2007 | CN2885881Y Full-electric roller hearth-type continuous annealing furnace |
| 04/04/2007 | CN2885880Y Lubricating oil atomization and injection device for lubricating and cooling system for bearing in annealing furnace bottle-transferring machine |
| 04/04/2007 | CN1942692A Pinion shaft |
| 04/04/2007 | CN1940114A High-hardenability die steel |
| 04/04/2007 | CN1940113A Die steel |
| 04/04/2007 | CN1940111A Nano-crystal soft magnetic alloy material and its production |
| 04/04/2007 | CN1940095A Heat treatment of cam shaft for diesel engine |
| 04/04/2007 | CN1309096C Device and method for tempering several process goods |
| 04/04/2007 | CN1308604C Method for increasing internal surface wearability of engine cylinder body and cylinder sleeve |
| 04/03/2007 | US7198684 reduces costs by achieving a better flow of the workpieces through the manufacturing operation |
| 03/29/2007 | WO2007034911A1 Steel members, method for heat treatment of the same, and process for production thereof |
| 03/29/2007 | WO2007034249A1 Equipment and method for hardening in the rare gas atmosphere |
| 03/29/2007 | WO2007034063A1 Method for making a steel part of multiphase microstructure |
| 03/29/2007 | WO2007033635A1 Process for manufacturing cold-formed precision steel pipes |
| 03/29/2007 | US20070069433 Versatile high velocity integral vacuum furnace |
| 03/29/2007 | US20070068606 Single-chamber vacuum furnace with hydrogen quenching |
| 03/29/2007 | US20070068601 Process for treating steel alloys |
| 03/29/2007 | DE102005045783A1 Einkammer-Vakuumofen mit Wasserstoffabschreckung Single-chamber vacuum furnace with hydrogen quench |
| 03/29/2007 | CA2622410A1 Process for manufacturing cold-formed precision steel pipes |
| 03/28/2007 | EP1767660A1 Single chamber vacuum furnace for hydrogen quenching |
| 03/28/2007 | EP1767659A1 Method of manufacturing multi phase microstructured steel piece |
| 03/28/2007 | EP1766100A2 Integrated metal processing facility |