| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 05/08/2013 | CN103084575A Powder metallurgy manufacturing process for valve body of anti-explosion valve |
| 05/08/2013 | CN103084567A Method for preparing valve plate of diaphragm valve through powder metallurgy |
| 05/08/2013 | CN102703674B Pressure-free assembly device for heat treatment of gears |
| 05/08/2013 | CN102605157B Heat treatment method of automotive body stamping die |
| 05/08/2013 | CN102560069B Process for hardening steel wires |
| 05/08/2013 | CN102417965B Post-forging heat treatment process for 45Cr4NiMoV alloy steel large back-up rolls of rolling mills |
| 05/08/2013 | CN102392109B Heating unit for bottom surface and conical surface of engine valve cap part and application method |
| 05/08/2013 | CN102363835B Intermediate frequency induction heat treatment device for steel tubes, and heat treatment method of the same |
| 05/08/2013 | CN102321793B Vibratory stress relief apparatus for medium frequency and low frequency shaft type parts, and use method thereof |
| 05/08/2013 | CN102268532B Method for realizing low-temperature heating process by using conventional walking beam type heating furnace |
| 05/08/2013 | CN102206828B Treatment process for improving comprehensive properties by alloying surface of sucker rod |
| 05/08/2013 | CN102203305B 连续退火炉 Continuous annealing furnace |
| 05/08/2013 | CN102203302B Method for manufacturing steel plate and steel pipe for ultrahigh-strength line pipe |
| 05/08/2013 | CN102105614B Cold-rolled steel sheet, process for production of same, and backlight chassis |
| 05/08/2013 | CN102010981B Continuous annealing furnace of high-efficiency energy-saving metal strip |
| 05/08/2013 | CN101941021B Method for producing extra-deep drawing cold-rolled steel plate based on ASP process |
| 05/07/2013 | CA2633153C Steel for springs, process of manufacture for spring using this steel, and spring made from such steel |
| 05/02/2013 | WO2013061822A1 Ring-shaped member heat treatment method and ring-shaped member manufacturing method |
| 05/02/2013 | WO2013061652A1 Steel sheet |
| 05/02/2013 | WO2013061629A1 Wire softening device and wire softening method |
| 05/02/2013 | WO2013061545A1 Method for producing high-strength steel sheet having superior workability |
| 05/02/2013 | WO2013061543A1 High-tension hot-rolled steel plate and method for manufacturing same |
| 05/02/2013 | WO2013060878A1 A bearing component |
| 05/02/2013 | WO2013060783A1 Method for producing a track element of a bearing assembly, and track element |
| 05/02/2013 | WO2013036166A3 Method and apparatus for heat treating rails |
| 05/02/2013 | WO2012048844A8 A steel strip composite and a method for making the same |
| 05/02/2013 | CA2851081A1 Steel sheet |
| 05/01/2013 | EP2586886A1 High-tension/hot-rolled steel sheet having excellent workability, and method for producing same |
| 05/01/2013 | EP2586885A1 High-strength hot-rolled steel sheet having excellent stretch flangeability and method for producing same |
| 05/01/2013 | EP2586880A1 Verfahren zur thermischen Behandlung von mikromechanischen Bauteilen von Uhren |
| 05/01/2013 | EP2586879A1 Method for thermal treatment of micromechanical clock parts |
| 05/01/2013 | EP2585619A1 Chromium-nickel steel, martensitic wire and method for producing same |
| 05/01/2013 | CN202913034U Continuous annealing device for copper strip resistance heating |
| 05/01/2013 | CN202913033U Stranded wire cooling device |
| 05/01/2013 | CN202913032U Heat insulating structure of bearing heat treatment furnace body |
| 05/01/2013 | CN202913031U Bearing heat treatment furnace body structure |
| 05/01/2013 | CN202913030U Roller-hearth furnace quenching production line for quenching of large saw blades |
| 05/01/2013 | CN202913029U Boiler barrel annealing furnace |
| 05/01/2013 | CN202913028U Water quenching control device for steel pipe |
| 05/01/2013 | CN202913027U Two-speed furnace roller and continuous rolling rod heat-treatment furnace |
| 05/01/2013 | CN202913026U Step furnace production line for quenching and tempering of automobile front axle |
| 05/01/2013 | CN202913025U Novel sizing block device of trolley type gas forging heat treatment furnace |
| 05/01/2013 | CN103080359A High-strength hot-rolled steel sheet having excellent workability, and a method for producing same |
| 05/01/2013 | CN103080357A High-strength cold-rolled steel sheet having excellent stretch flange properties, and process for production thereof |
| 05/01/2013 | CN103080356A Steel for induction hardening and crankshaft manufactured using same |
| 05/01/2013 | CN103080354A Dual-phase structure oil well pipe and method for producing same |
| 05/01/2013 | CN103080353A Special steel steel-wire and special steel wire material |
| 05/01/2013 | CN103080345A Steel pipe quenching method and steel pipe manufacturing method using same |
| 05/01/2013 | CN103080344A Bearing component and method for surface hardening |
| 05/01/2013 | CN103080343A Mechanical component and method for surface hardening |
| 05/01/2013 | CN103074555A Aging furnace for section bar |
| 05/01/2013 | CN103074546A Cold-rolled strip steel for condenser tube of refrigerator and manufacturing method thereof |
| 05/01/2013 | CN103074541A Member excellent in damping capacity, method for producing the same, and steel sheet employed as member excellent in damping capacity |
| 05/01/2013 | CN103074482A Regeneration method of scrapped Cr5 forged-steel working roller |
| 05/01/2013 | CN103074480A Controllable internal circulation cooling system used in heat treatment furnace |
| 05/01/2013 | CN103074479A Correction processing method for heat treatment workpiece |
| 05/01/2013 | CN103074478A 'Two-time temperature control and one-time time control quenching' heat treatment process for cast alloy valve seat rings |
| 05/01/2013 | CN103074477A Heat treatment method for steel plate used for extremely thick non-quenched and tempered ocean engineering |
| 05/01/2013 | CN103074470A Surface quenching sensor of small-diameter internal spline |
| 05/01/2013 | CN103071749A Method for machining forklift pallet fork |
| 05/01/2013 | CN103071746A Machining method for rear cylinder trunnion |
| 05/01/2013 | CN103071745A Machining method for automotive rocker arm |
| 05/01/2013 | CN102296231B Method for producing 0.25-0.35mm superfinishing cold-rolled sheet by continuous annealing line |
| 05/01/2013 | CN102268516B Decarburization and annealing process of high-carbon middle-and-low-grade cold rolling orientation-free silicon steel |
| 05/01/2013 | CN102234712B Thin wire inductive heating heat treatment system |
| 05/01/2013 | CN101730752B Method for hot dip galvanising of AHSS or UHSS strip material, and such material |
| 05/01/2013 | CN101558173B Annealing and pickling process |
| 04/30/2013 | US8430980 Steel member and a method of hard-facing thereof |
| 04/30/2013 | CA2642935C Wire rods having excelling in wire drawability |
| 04/25/2013 | WO2013058131A1 Bearing steel and method for producing same |
| 04/25/2013 | WO2013023635A3 Method and device for producing an elongate mechanical component |
| 04/25/2013 | WO2012056785A9 Steel for surface hardening for machine structural use, and steel component for machine structural use and process for producing same |
| 04/25/2013 | WO2012048841A8 Method of hot forming a steel blank and the hot formed part |
| 04/24/2013 | EP2584053A2 Method for reducing tension in tube walls of a steam generator |
| 04/24/2013 | EP2583792A1 Saw wire |
| 04/24/2013 | EP2583781A1 Combined welding-soldering process for joining two workpieces |
| 04/24/2013 | CN202902855U Steel bar heating furnace |
| 04/24/2013 | CN202901190U Tensioning device for driving chain of steel pipe groove type water quenching apparatus |
| 04/24/2013 | CN202898550U Carburizing and quenching tool for clutch shaft |
| 04/24/2013 | CN202898482U Galvanized production line annealing furnace combustion system |
| 04/24/2013 | CN202898481U Driving device of solder strip annealing wheel set |
| 04/24/2013 | CN202898480U Solder strip annealing wheel |
| 04/24/2013 | CN202898479U Heat treatment MCF (metal casting furnace) with auxiliary device capable of discharging waste gas rapidly |
| 04/24/2013 | CN202898478U Gas-type aluminum soldering aging oven |
| 04/24/2013 | CN202898477U 齿轮套夹具 Jig gear sets |
| 04/24/2013 | CN202898476U Small thin gear carburizing and quenching tooling |
| 04/24/2013 | CN202898475U Large-diameter gear carburizing and quenching tool |
| 04/24/2013 | CN202898474U Carburizing and quenching tool for hollow gear shaft |
| 04/24/2013 | CN202898473U Vertical-type lifting high-frequency quenching machine |
| 04/24/2013 | CN202898472U Thermal treatment device for ends of mining scrapping plates |
| 04/24/2013 | CN202898471U Induction electric furnace door lifting and dropping mechanism in oil drill rod joint production line |
| 04/24/2013 | CN202898470U Feeding device of electric induction furnace for production line of oil drill rod joints |
| 04/24/2013 | CN202898469U Intelligent-control induction heating furnace of automobile stabilizer bar |
| 04/24/2013 | CN202898462U Elbow pipe cooling water tank |
| 04/24/2013 | CN103069040A High-strength cold rolled steel sheet having excellent formability and crashworthiness and method for manufacturing the same |
| 04/24/2013 | CN103069035A Grain-oriented electrical steel sheet, and method for producing same |
| 04/24/2013 | CN103069034A Grain-oriented electrical steel sheet, and method for producing same |
| 04/24/2013 | CN103069021A Method for heat-treating structural material and heat-treated structural material |
| 04/24/2013 | CN103069018A Mechanical component and method of surface hardening |
| 04/24/2013 | CN103060821A Gear carburization thermal treatment tool |