| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 12/09/2009 | CN100566926C I-type integral oil ring wire working method and equipment for piston ring industry |
| 12/09/2009 | CN100566922C Process for manufacturing corrosion resistant low-chromium tubing in CO2 and H2S coexisted environment |
| 12/08/2009 | USRE41033 Crystal structure of steels made of iron, carbon, silicon, and manganese; improves the wear resistance and breakage resistance that are required for rails at curved zones of heavy load railways, and drastically improves the service life of the rails |
| 12/08/2009 | CA2433626C High strength hot-dip galvanized or galvannealed steel sheet having improved plating adhesion and press formability and process for producing the same |
| 12/08/2009 | CA2349693C Tower furnace for heat treatment of metal strips |
| 12/03/2009 | WO2009145328A1 High-strength hot-rolled steel sheet for line pipe excellent in low-temperature toughness and ductile-fracture-stopping performance and process for producing the same |
| 12/03/2009 | WO2009145168A1 Manufacturing method for machine parts having superior rolling-contact fatigue life |
| 12/03/2009 | WO2009145135A1 Grease-sealed bearing |
| 12/03/2009 | US20090293998 Oil-Tempered Wire and Method of Producing the Same |
| 12/03/2009 | DE112008000426T5 Heisskanalsystem mit Verbunddüsenspitze Hot runner system with composite nozzle tip |
| 12/02/2009 | EP2128467A1 Component for constant velocity universal joint and method for manufacturing the component |
| 12/02/2009 | EP2128295A1 High-strength hot dip zinc plated steel sheet having excellent moldability, and method for production thereof |
| 12/02/2009 | EP2128293A1 Low specific gravity and high strength steel sheets with excellent ridging resistibility and manufacturing methods thereof |
| 12/02/2009 | EP2128289A1 Steel sheet for cans, hot-rolled steel sheet to be used as the base metal and processes for production of both |
| 12/02/2009 | EP2128278A1 Process for producing bend pipe for line pipe and bend pipe for line pipe |
| 12/02/2009 | EP2126144A1 Method of thermomechanical shaping a final product with very high strength and a product produced thereby |
| 12/02/2009 | EP2125263A1 Method and apparatus for the temperature-controlled shaping of hot-rolled steel material |
| 12/02/2009 | CN201354384Y Straight insertion type movable lug |
| 12/02/2009 | CN201354383Y Vertical Muffle-free stainless steel strip furnace for brightness |
| 12/02/2009 | CN201354382Y Center correction tool for back-up roll of circular furnace |
| 12/02/2009 | CN101595235A High tensile cold-rolled steel sheet and process for production thereor |
| 12/02/2009 | CN101595234A Steel sheet for cans, hot-rolled steel sheet to be used as the base metal and processes for production of both |
| 12/02/2009 | CN101592131A Ring forging of rotary support ring for wind power equipment and method for manufacturing same |
| 12/02/2009 | CN101592097A Processing method of anti-sandstorm cylinder sleeve |
| 12/02/2009 | CN101591730A Method and device for improving operating efficiency of material handling equipment of bell type furnace units of steel enterprises |
| 12/02/2009 | CN101591728A Roller-type blade thermal treatment furnace |
| 12/02/2009 | CN101591727A Heat treatment method for low-carbon alloy steel forging blank |
| 12/02/2009 | CN101590586A Method and mould for manufacturing valve retainer |
| 12/02/2009 | CN101590561A Steel ring spoke crack preventing process preset with internal stress of automotive steel ring spoke |
| 12/02/2009 | CN100564568C Rolling member and producing method thereof |
| 12/02/2009 | CN100564567C Expansive seamless steel pipe for use in oil well and method for production thereof |
| 12/02/2009 | CN100564550C Apparatus for producing high strength steel sheet or hot dip zinc plated high strength steel sheet excellent in elongation and bore expanding characteristics |
| 12/02/2009 | CN100564549C Method for the thermomechanical treatment of steel |
| 12/02/2009 | CN100563912C Big linear diameter spring cold coiling processing technics |
| 12/01/2009 | US7625455 Utilizing preheating stage to form thin surface oxide film; reducing pickling time; enhancing radiation heat transfer |
| 12/01/2009 | CA2420492C A method of producing steel strip |
| 12/01/2009 | CA2404363C Bearing material |
| 11/25/2009 | EP2123785A1 Steel plate having high gathering degree of {222} plane and process for production thereof |
| 11/25/2009 | EP2123780A1 Processes for production of steel sheets for cans |
| 11/25/2009 | EP2123779A1 Method for increasing the fatigue strength of a predominantly steel mechnical part of a wind turbine and/or for reducing the tendancy to form "White etching cracks" or "brittle flakes" in such steel mechanical parts |
| 11/25/2009 | EP2123447A1 Composite material with ballistic protective effect |
| 11/25/2009 | CN201351172Y Fully automatic control discharge device of roller-hearth steel pipe heat treating furnace |
| 11/25/2009 | CN101586509A Piston of diesel engine |
| 11/25/2009 | CN101586183A Heat treatment process of hydrogenation reaction kettle |
| 11/25/2009 | CN101585133A Process of manufacturing automotive upholstery punching mold notch |
| 11/25/2009 | CN100562678C Method of manufacturing metal gasket |
| 11/25/2009 | CN100562599C High-tensile steel sheet, steel sheet joining process and high-strength automotive part |
| 11/25/2009 | CN100562587C Process for heating titanium oblique perforating rod ingot |
| 11/20/2009 | CA2663736A1 Method for increasing the fatigue strength of a predominantly steel mechanical part of a wind turbine and/or for reducing the tendency to form what are called "white etching cracks" or "brittle flakes" in such steel mechanical parts |
| 11/19/2009 | WO2009139355A1 Ferritic stainless steel |
| 11/19/2009 | WO2009138602A1 Device for blowing a gas on the surface of a material in the form of a running strip |
| 11/19/2009 | WO2009116933A9 Steel, process for the manufacture of a steel blank and process for the manufacture of a component of the steel |
| 11/19/2009 | US20090283181 hard-drawn spring which exhibits fatigue strength and sag resistance equal or superior to springs produced using an oil-tempered wire. The hard-drawn spring is produced using a steel wire containing 0.5 to 0.7 mass % of C, 1.0 to 1.95 mass % of Si, 0.5 to 1.5 mass % of Mn and 0.5 to 1.5 mass % of Cr |
| 11/18/2009 | EP2119800A1 Method of manufacturing laminated ring and heat treatment apparatus for use in such method |
| 11/18/2009 | EP2119799A1 Residual stress improving method of pipeline |
| 11/18/2009 | EP2118326A2 Gear material for an enhanced rotorcraft drive system |
| 11/18/2009 | EP2117743A1 Method for shaping a blank, and cooling device for a blank |
| 11/18/2009 | CN201347449Y In-out major shaft for furnace |
| 11/18/2009 | CN201347448Y Heat resisting cushion block for tapping machine |
| 11/18/2009 | CN201347447Y Lifting mechanism of tapping machine |
| 11/18/2009 | CN201347446Y Tapping machine |
| 11/18/2009 | CN201347445Y Preheating tank |
| 11/18/2009 | CN201347444Y Flue gas protecting furnace |
| 11/18/2009 | CN201347443Y Mold for annular gear |
| 11/18/2009 | CN101583740A Process for producing high-strength cold rolled steel sheet excelling in chemical treatability and relevant production equipment |
| 11/18/2009 | CN101583727A Method for manufacturing an austenitic steel object |
| 11/18/2009 | CN101583486A Coated steel strips, methods of making the same, methods of using the same, stamping blanks prepared from the same, stamped products prepared from the same, and articles of manufacture which contain s |
| 11/18/2009 | CN101581200A 120 steel grade drill pipe and manufacturing process method thereof |
| 11/18/2009 | CN101581048A Stainless steel wire for spaceflight |
| 11/18/2009 | CN101580919A Medium-carbon cast steel shot or medium-carbon cast steel grit and preparation method thereof |
| 11/18/2009 | CN101580897A Method for improving Bi-system high temperature superconducting wire internal interface conditions |
| 11/18/2009 | CN101580896A Roller-to-roller thermal treatment device and method for NiW alloy base belt for coated conductor |
| 11/18/2009 | CN101580895A Processing method of balance shaft housing |
| 11/18/2009 | CN101580894A Water spraying system of high-temperature fast seamless steel pipe quenching device |
| 11/18/2009 | CN101580893A Method for high-temperature fast quenching of seamless steel pipes |
| 11/18/2009 | CN101580890A Trolley assembly annealing furnace |
| 11/18/2009 | CN101579804A Integral forming method of large size thin-walled titanium alloy cylindrical part without welding line |
| 11/18/2009 | CN101579701A Preparation process of copper pipe material for electronic thermotubes |
| 11/18/2009 | CN100562105C Electronic interference resisting device for image enhancement processing in steel pipe temper furnace |
| 11/18/2009 | CN100560768C Martensitic stainless steel pipe and method for production thereof |
| 11/18/2009 | CN100560752C Double metal saw belt single furnace multiple cycle tempering heat treatment method |
| 11/18/2009 | CN100560751C Hardening technology for surface alloy of gas valve of high power diesel engine |
| 11/18/2009 | CN100560749C Heating method for preventing high carbon belt billet decarburization |
| 11/18/2009 | CN100560354C Composite nickel steel band production technique |
| 11/18/2009 | CN100560283C Processing method of end face asymmetric width positioning slot extra thin wall bearing ring chamfer |
| 11/17/2009 | US7618503 Method for improving the performance of seam-welded joints using post-weld heat treatment |
| 11/17/2009 | US7618501 Treating rods, pipes, work pieces while the products are in motion; direct flame impingement; reduced formation of oxide scale and decarburisation |
| 11/17/2009 | US7617583 Method for producing hot-dip coated metal belt |
| 11/12/2009 | WO2009135801A1 Multi-part support element |
| 11/12/2009 | WO2009135776A1 Method for producing a formed steel part having a predominantly ferritic-bainitic structure |
| 11/12/2009 | WO2009103891A3 Device for blowing a gas on a surface of a running strip material |
| 11/12/2009 | US20090277558 Lightweight and excellent ductile bead wire, method for producing the same and lightweight tire |
| 11/12/2009 | US20090277545 High-Strength Wire Rod Excellent in Drawing Characteristics and Method of Manufacturing the Same |
| 11/12/2009 | US20090277544 High-tensile strength welded steel tube for structural parts of automobiles and method of producing the same |
| 11/12/2009 | US20090277543 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom |
| 11/12/2009 | DE10020118B4 Method for verifying sealability of selected exhaust valve of selected cylinder in internal combustion engine in motor vehicle, involves concluding sealability of valve based on measured values of lambda sensor in one of exhaust gas strands |
| 11/12/2009 | CA2725210A1 Method for producing a formed steel part having a predominantly ferritic-bainitic structure |
| 11/11/2009 | EP2116619A2 An apparatus and method of heat treatment |
| 11/11/2009 | EP2116311A1 High tensile cold rolled steel plate and method for manufacturing the cold rolled steel plate |
| 11/11/2009 | EP2115175A1 Cutlery and/or serving cutlery made of ferritic stainless steel with a martensitic case |