| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 05/20/2009 | CN100489118C Press moulding product and its high frequency quenching method and its high frequency quenching device |
| 05/20/2009 | CN100489117C Laser quenching device |
| 05/19/2009 | US7534314 High carbon steel with superplasticity |
| 05/19/2009 | US7534313 Systems and methods for controlling heat treating atmospheres and processes based upon measurement of ammonia concentration |
| 05/14/2009 | WO2008071157A3 Method for the heat treatment of antifriction bearing components of fully hardened, austempered antifriction bearing steel |
| 05/14/2009 | US20090121396 Method of Cooling Steel Plate |
| 05/14/2009 | DE102004040390B4 Verfahren zur Induktionswärmebehandlung Method for Induction Heat Treatment |
| 05/13/2009 | EP2058560A1 Pulley for continuously variable transmission |
| 05/13/2009 | EP2058409A1 Method for heat treatment |
| 05/13/2009 | EP2057295A2 Rod or wire heat treatment system, related methods, and related products |
| 05/13/2009 | CN201236202Y Cover type furnace cooling cover |
| 05/13/2009 | CN201236201Y Cover type furnace heating cover |
| 05/13/2009 | CN201236198Y Quenching apparatus without hydraulic plate for continuously quenching steel belt |
| 05/13/2009 | CN201236195Y Fine adjustment mechanism for support base |
| 05/13/2009 | CN101432539A Method of producing bearing unit-use outer race |
| 05/13/2009 | CN101432449A Metal heat treating methods and devices |
| 05/13/2009 | CN101429630A Novel austenite cold-heading stainless steel and its steel wire production method |
| 05/13/2009 | CN101429619A High-strength steel tension rod and thermal treatment method thereof |
| 05/13/2009 | CN101429613A Hard alloy steel production method |
| 05/13/2009 | CN101429591A Thermal treatment process for spring steel PAG water-soluble quenching medium for band spring of automotive vehicle |
| 05/13/2009 | CN101429587A Treatment process for isothermal normalizing with exhaust heat of forgeable piece smithing |
| 05/13/2009 | CN101428387A Helix bevel gear active tooth threading machining process |
| 05/13/2009 | CN101428305A Process for manufacturing copper iron alloy plate (row, stick, tube) |
| 05/13/2009 | CN101428304A Process for manufacturing silver copper plate (row, stick, tube) |
| 05/13/2009 | CN100487139C Method for the production of a bearing ring for large-size rolling bearings |
| 05/13/2009 | CN100486759C Machining process and equipment for low-plasticity nonferrous metal round wire formation |
| 05/12/2009 | US7531769 Carbon fiber composite muffle |
| 05/12/2009 | US7531052 Continuous processed groove, formed by thermal energy in a longitudinal direction on one side of the strip at a position at a predetermined distance from one edge; and a continuous changed structure area formed by thermal energy in a longitudinal direction on the opposite side of the strip |
| 05/07/2009 | WO2007132436A3 Process for the production of fine-grained carbon steel strips and strips thus obtainable |
| 05/06/2009 | CN101426944A High-speed steel for saw blades |
| 05/06/2009 | CN101426939A Method and device for cooling and stabilizing strip in a continuous line |
| 05/06/2009 | CN101424296A Method for processing crank connecting rod |
| 05/06/2009 | CN101423916A Low-alloy abrasion-proof and corrosion resistant steel and method for producing the same |
| 05/06/2009 | CN101423915A Reinforcement steel bar for medium-high strength hoop for rods for reinforcing concrete and method for producing the same |
| 05/06/2009 | CN101423891A Heat treating process for higher chromium abrading-ball and abrading-segment by temperature zone timing oil quenching |
| 05/06/2009 | CN101423890A Heat treating process for medium chromium abrading-ball and abrading-segment by temperature zone timing oil quenching |
| 05/06/2009 | CN101423889A Inside spline wheel gear quenching method and device |
| 05/06/2009 | CN101423888A Whole heat treatment process of integral car axle |
| 05/06/2009 | CN101423887A Method for cooling steel pipe |
| 05/06/2009 | CN101423886A Heat treating method of coupler terminal pin hole, coupler and flame heating gun head |
| 05/06/2009 | CN101423885A Corrugated roller soft belt-free induction hardening method |
| 05/06/2009 | CN101423883A Die quenching machine tool for numerical control force measurement |
| 05/06/2009 | CN101422861A Accurate forming method of special-shape deep-hole type parts |
| 05/06/2009 | CN100485158C Expansion pipe device for oilfield well completion |
| 05/06/2009 | CN100485075C High-carbon high-vanadium high-speed steel composite roller and heat treatment method thereof |
| 05/06/2009 | CN100485063C High temperature treating device under strong magnetic field |
| 05/06/2009 | CN100485052C Inward spraying nozzle with shifting and rotating function |
| 05/06/2009 | CN100485050C Cooling method for steel structured assembly heated by flame |
| 05/05/2009 | US7527701 Method and plant for cooling a moving metal strip |
| 04/30/2009 | WO2009054530A1 Carbonitrided induction-hardened steel part with excellent rolling contact fatigue strength at high temperature and process for producing the same |
| 04/30/2009 | WO2009054394A1 Steel for cvj ball cages |
| 04/30/2009 | WO2009054266A1 Fixed constant velocity universal joint |
| 04/30/2009 | WO2009054214A1 Constant speed universal joint |
| 04/30/2009 | US20090108509 Cooling Apparatus of Thick-Gauge Steel Plate |
| 04/30/2009 | US20090108508 Device and Method for Cooling Hot Strip |
| 04/30/2009 | US20090107968 Method For Heating Components |
| 04/30/2009 | US20090107590 Soft magnetic alloy for microwire casting |
| 04/30/2009 | DE19936010B4 Verfahren und Vorrichtung zum Unterdrücken von Zunderbildung insbesondere Sekundärzunder beim Warmwalzen von Brammen Method and apparatus for suppressing the formation of scale, in particular secondary scale during hot-rolling of slabs |
| 04/30/2009 | DE102007050907A1 Verfahren zur Herstellung eines gehärteten Blechprofils A method of producing a hardened sheet metal profile |
| 04/30/2009 | DE10041179B4 Vorrichtung und Verfahren zum Bearbeiten einer Innenfläche einer zylinderförmigen Bohrung Apparatus and method for processing an inner surface of a cylindrical bore |
| 04/30/2009 | CA2642322A1 Method for hardening the surfaces of work pieces made of stainless steel, and a molten salt bath for realizing the method |
| 04/29/2009 | EP2053144A1 Method for quenching of steel member, quenched steel member, and agent for protecting quenched surface |
| 04/29/2009 | CN201228275Y Truck stringer induction heat-treatment equipment |
| 04/29/2009 | CN201228273Y Nozzle cooling vacuum gas quenching furnace capable of convection heating |
| 04/29/2009 | CN201228272Y Bell-type annealing furnace coil base diffuser |
| 04/29/2009 | CN101421424A Process for producing steel material |
| 04/29/2009 | CN101418632A High strength high plasticity hot-rolled screw thread steel product for prestressed concrete and technique for processing thereof |
| 04/29/2009 | CN101418451A Carbonitriding-deep Re-B-C-N penetration composite heat treating process |
| 04/29/2009 | CN101418369A Heat treating method of special-shaped plate spring and mould |
| 04/29/2009 | CN101418368A Heat treating process for eliminating mixed crystal of low-alloy quick-cutting steel |
| 04/29/2009 | CN101417382A Milling-rod production method |
| 04/29/2009 | CN101417294A Low-alloy high speed steel hot-pull technique |
| 04/29/2009 | CN100483813C Metal bipolar plate of containing carbon element surface of fuel cell, and fabricating method |
| 04/29/2009 | CN100482844C Precipitation hardening type stainless steel with high density |
| 04/29/2009 | CN100482840C Nickel-base high-temperature alloy material for guide roller and heat treatment process thereof |
| 04/29/2009 | CN100482823C Method for preparing micro-grain tin bronze alloy |
| 04/29/2009 | CN100482813C Annealing furnace roller surface peening coating and method for making same |
| 04/29/2009 | CN100482811C Thermal treatment technique of die steel XW42 |
| 04/29/2009 | CN100482406C Method of producing cutting tool steel board with three layer complex blades |
| 04/28/2009 | US7523631 Cooling device, manufacturing method, and manufacturing line for hot rolled steel band |
| 04/23/2009 | US20090100968 Continuously alloying magnesium and nickel by heating raw magnesium in an inert gas to melt, adding nickelpowder, controlled heating, precipitation; recovering residual liquid containing magnesium for circulation; simplification; industrial scale |
| 04/22/2009 | EP2050526A1 Atmosphere for sintering, annealing or hardening comprising silane or borane |
| 04/22/2009 | EP2002903A9 Method for production of seamless pipe, and oxidizing gas supply apparatus |
| 04/22/2009 | EP1965957B1 Automated control of razor blade colorization |
| 04/22/2009 | CN201224753Y Full-sized ring sleeve part quenching equipment |
| 04/22/2009 | CN201224749Y Die-press quenching machine |
| 04/22/2009 | CN101415851A Very thin hard steel sheet and method for producing the same |
| 04/22/2009 | CN101415846A Method and device adjusting targeted combinations of properties of polyphase steel |
| 04/22/2009 | CN101415549A Soft magnetic metal strip laminate and process for production thereof |
| 04/22/2009 | CN101413049A Preparation of normalizing weldable fine grain steel plate with a yield strength of 420MPa |
| 04/22/2009 | CN101412144A Welding procedure of 0Cr11Ni2MoNbV thick plate material buried arc welding automatic arc welding |
| 04/22/2009 | CN101412142A Welding procedure of 0Cr11Ni2MoNbV light sheet material handwork tungsten electrode argon arc |
| 04/22/2009 | CN101412137A Welding procedure of 0Cr11Ni2MoNbV medium plate material handwork arc welding |
| 04/22/2009 | CN100480412C Quick setting belt of single-texture magnetic RE-Fe-B compound and preparation process thereof |
| 04/22/2009 | CN100480399C Production method and device of removing internal stress of steel wire for cold upsetting |
| 04/22/2009 | CN100479974C Preparing of leadless RE powder brazing alloy |
| 04/16/2009 | WO2009048811A2 Apparatus for removing dent in sheet metal and method thereof |
| 04/16/2009 | WO2008045631A3 Low yield ratio dual phase steel linepipe with superior strain aging resistance |
| 04/16/2009 | WO2007069270A3 Post forging process for enhancing fatigue strength of steel components |
| 04/16/2009 | US20090095384 Aqueous quenching media and use thereof in quenching metal substrates |