| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 12/09/2009 | CN201358281Y Wire drawing and annealing integrative machine |
| 12/09/2009 | CN201358280Y Workbench used for local tempering of shaft components |
| 12/09/2009 | CN201358279Y Non-crystallization processing device on the surface of rotary part |
| 12/09/2009 | CN201358278Y Oblique principal angle type ring induction quenching machine |
| 12/09/2009 | CN201358277Y Horizontal plasma device for processing inner surface of large-scale cylindrical metal |
| 12/09/2009 | CN201358276Y Dry quenching steel device for steel cooling and waste heat recovery in steel making and rolling processes |
| 12/09/2009 | CN201358275Y High-temperature phase change heat storage dry quenching steel device applied to iron and steel production cooling process |
| 12/09/2009 | CN101600814A Processing method for cracking desensitisation using a nickel based alloy environment, mainly for a nuclear reactor fuel assembly and for a nuclear reactor, and part made of the alloy thus processed |
| 12/09/2009 | CN101597724A Alloy structural steel and production method thereof |
| 12/09/2009 | CN101597722A Multielement ferroboron resisting zinc liquid corrosion and preparation method thereof |
| 12/09/2009 | CN101597720A High temperature resistance and high strength alloy steel and heat treatment process thereof |
| 12/09/2009 | CN101597715A Iron-based high-temperature alloy material for guide roller and preparation method thereof |
| 12/09/2009 | CN101597711A Rare earth-magnesium-transition metal base hydrogen storage metal and preparation method thereof |
| 12/09/2009 | CN101597710A 2xxx aluminium alloy for aviation and processing method thereof |
| 12/09/2009 | CN101597685A Energy-saving type continuous annealing furnace |
| 12/09/2009 | CN101597684A Heat treatment method of guide plate |
| 12/09/2009 | CN101597683A Method for processing wear resistance steel medium alloy lining board |
| 12/09/2009 | CN101597682A Process for ultrafining heat-treatment on crystal grains of axle steel |
| 12/09/2009 | CN101597681A Process for heat-treatment on spring steel product for high-speed heavy-load trains |
| 12/09/2009 | CN101597680A Process for quenching-distribution heat treatment on 60Si2CrVA steel spring for trains |
| 12/09/2009 | CN101597679A Process for quenching-isothermal heat treatment on 50CrVA steel spring for high-speed heavy loading locomotive |
| 12/09/2009 | CN101597678A Method for processing wear resistance steel medium alloy lining board |
| 12/09/2009 | CN101597677A Softening method for reducing hardness of seamless steel tube |
| 12/09/2009 | CN101597675A Heat treatment method of integral guide plate |
| 12/09/2009 | CN101597674A Continuous annealing method of DC01 steel plate with low yield and high tensile strength for automobiles |
| 12/09/2009 | CN101597672A Compression mold hardening machine |
| 12/09/2009 | CN101597671A Full digital control one-drive-two roll automatic double frequency quenching method and system |
| 12/09/2009 | CN101597670A Hole insulating layer bracket device |
| 12/09/2009 | CN101596573A Method for manufacturing transition section of conical head of coke tower |
| 12/09/2009 | CN101596558A Blank cold extruding technology |
| 12/09/2009 | CN101596553A High speed steel roll collar applied to high speed wire rolling mill and manufacture method thereof |
| 12/09/2009 | CN101595822A Manufacturing method of replaceable guide plate head |
| 12/09/2009 | CN100567548C Method for manufacturing high-vanadium, high-cobalt high speed steel |
| 12/09/2009 | CN100567545C High grade non-oriented silicon steel and method for manufacturing same |
| 12/09/2009 | CN100567520C Alloy spring steel ultra-fine martensite heat treatment quenching strengthening process |
| 12/09/2009 | CN100567519C Technique for producing deep-drawing cold-rolled plate based on CSP technique |
| 12/09/2009 | CN100567517C Surface metallurgy technique for forming cobalt-containing super-hard high-speed steel on substrate surface |
| 12/09/2009 | CN100567516C Rapid cooling method of components by convection and radiation heat transfer |
| 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 |
| 12/03/2009 | WO2009145717A1 Method & work piece |
| 12/03/2009 | WO2009145168A1 Manufacturing method for machine parts having superior rolling-contact fatigue life |
| 12/03/2009 | US20090295518 Soft Magnetic Powders and Compacts |
| 12/02/2009 | EP2128467A1 Component for constant velocity universal joint and method for manufacturing the component |
| 12/02/2009 | EP2128301A1 Carburizing apparatus and carburizing method |
| 12/02/2009 | EP2128276A1 Method and system for producing a cast component |
| 12/02/2009 | EP2126152A2 Processing method for cracking desensitisation using a nickel based alloy environment, mainly for a nuclear reactor fuel assembly and for a nuclear reactor, and part made of the alloy thus processed |
| 12/02/2009 | EP2126144A1 Method of thermomechanical shaping a final product with very high strength and a product produced thereby |
| 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 | CN201354381Y Annealing furnace for forming oxide on punching sheet surface |
| 12/02/2009 | CN201354380Y Ceramic pulley block applied in induction annealing apparatus for replacing graphite guide mouth |
| 12/02/2009 | CN101592131A Ring forging of rotary support ring for wind power equipment and method for manufacturing same |
| 12/02/2009 | CN101591784A Mechanical infiltration method for surface alloying of pure iron-based plate |
| 12/02/2009 | CN101591783A Technique of producing alloy coating hot spray oil pumping polish rod |
| 12/02/2009 | CN101591754A High-obdurability low-alloy cold stamping die steel and hot chemical treatment process |
| 12/02/2009 | CN101591753A Heat-resistant and wear-resistant vulcanized rare earth alloy steel as well as preparation method and application thereof |
| 12/02/2009 | CN101591744A Super-plastic Ti-Al-Nb-Er alloy material and preparation method thereof |
| 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 | CN101591726A Cold drawing method for medium-carbon steel bar |
| 12/02/2009 | CN101591725A Production technology for strip steel |
| 12/02/2009 | CN101591724A Laser heat treatment technique application in drum type compression cylinder |
| 12/02/2009 | CN101591723A Residual forging heat quenching process |
| 12/02/2009 | CN101590589A Method for producing transmission part |
| 12/02/2009 | CN101590586A Method and mould for manufacturing valve retainer |
| 12/02/2009 | CN101589661A Carbide-containing austempered ductile iron plowshare and production method thereof |
| 12/02/2009 | CN100564569C Cold working die steel |
| 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 | CN100564549C Method for the thermomechanical treatment of steel |
| 12/02/2009 | CN100563917C Process and equipment for formation of low-plasticity nonferrous metal shaped wire |
| 12/01/2009 | US7625455 Utilizing preheating stage to form thin surface oxide film; reducing pickling time; enhancing radiation heat transfer |
| 12/01/2009 | US7624909 Welded component |
| 12/01/2009 | CA2420492C A method of producing steel strip |
| 11/26/2009 | WO2009142205A1 Iron and steel material having quenched surface layer part, process for producing the iron and steel material, and quenched component |
| 11/26/2009 | US20090288742 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 |
| 11/26/2009 | DE102008024930A1 Method for machining a brake disk for a vehicle comprises partly locally heating a friction ring of a brake disk in the region of a two-dimensional structure forming after cooling a material change in the friction ring along the structure |
| 11/25/2009 | EP2121993A1 Device and method for loading and unloading a heat treatment furnace |
| 11/25/2009 | EP2121992A1 Method for imprinting and erasing amorphous metal alloys |
| 11/25/2009 | CN201351173Y Pulsed plasma nitrocarburizing quenching device |
| 11/25/2009 | CN201351171Y Quenching oil cooling device |
| 11/25/2009 | CN101586539A Method for increasing the fatigue strength of a predominantly steel mechnical part of a wind turbine |
| 11/25/2009 | CN101586537A Frame of wind-driven generator group and method for preparing the same |
| 11/25/2009 | CN101586509A Piston of diesel engine |
| 11/25/2009 | CN101586450A Petroleum casing pipe with high strength and high toughness and preparing method thereof |
| 11/25/2009 | CN101586448A Production technique and devices for hot spraying alloy coating on polished pumping rod |
| 11/25/2009 | CN101586447A Production device for hot spraying alloy coating on surface of polished pumping rod |
| 11/25/2009 | CN101586225A Vacuum hardening method and a vacuum hardening apparatus used |
| 11/25/2009 | CN101586224A Titanium alloy surface nanostructure preparing method |
| 11/25/2009 | CN101586218A Copper-containing bainite steel with high hardenability and manufacturing method thereof |
| 11/25/2009 | CN101586217A Low-cost and ultra-high strength and toughness martensite steel and manufacturing method thereof |
| 11/25/2009 | CN101586198A A process for preparing aluminum oxide dispersion strengthened copper with high strength and high conductivity |
| 11/25/2009 | CN101586180A Method for improving property of non-oriented electric steel |
| 11/25/2009 | CN101586179A Narrow slit effect quenching clamper |
| 11/25/2009 | CN101586178A Process and apparatus for heat treatment |
| 11/25/2009 | CN101585141A Composite stock compression molding process |
| 11/25/2009 | CN101585133A Process of manufacturing automotive upholstery punching mold notch |
| 11/25/2009 | CN101585046A SUS304 stainless steel cold-rolled plate producing method omitting annealing before cold rolling |
| 11/25/2009 | CN100562587C Process for heating titanium oblique perforating rod ingot |
| 11/24/2009 | US7622009 Containing 7-30 ppm by weight boron and 10-70 ppm by weight nitrogen, contained as a Fe(B,N) solid solution that may contain C |