| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 02/20/2008 | CN201024190Y Cross piercing billet heating device |
| 02/20/2008 | CN201024189Y Internal-spraying vortex device for steel pipe |
| 02/20/2008 | CN101128611A Non-tempered steel soft nitrided component |
| 02/20/2008 | CN101128273A High-strength welded steel pipe excellent in hydrogen embrittlement cracking resistance of weld metal and process for producing the same |
| 02/20/2008 | CN101127267A Amorphous nano crystal soft magnet alloy strip with surface insulation coating and its preparation method |
| 02/20/2008 | CN101126440A Differential device supporting structure, differential device component, method for manufacturing the differential device supporting structure and method for manufacturing the differential device comp |
| 02/20/2008 | CN101126387A Production process of high-purity plunger piston |
| 02/20/2008 | CN101126120A Heat processing method for soft magnet core with lantern ring die |
| 02/20/2008 | CN101125402A Method for processing heat coiling spring whose spring wire diameter is 90 millimeter |
| 02/20/2008 | CN101125351A Method for preparing mirror deep punched molybdenum plate |
| 02/20/2008 | CN100370050C Guide and guard roller for guiding steel billet in high speed wire rolling machine and its making process |
| 02/20/2008 | CN100370049C Ferritic stainless steel having high temperature creep resistance |
| 02/20/2008 | CN100370038C Method and device for patenting steel wires |
| 02/20/2008 | CN100370037C Device for cooling and/or rinsing steel wires and/or tapes |
| 02/20/2008 | CN100369701C High temperature/pressure container |
| 02/20/2008 | CN100369681C Compound high speed steel roll and its making process |
| 02/19/2008 | CA2315169C A loader device for supporting parts for heat treatment in a furnace |
| 02/14/2008 | WO2008018624A1 Steel for automobile undercarriage component excelling in fatigue performance and process for manufacturing automobile undercarriage component using the steel |
| 02/14/2008 | WO2008018531A1 Dr steel sheet and process for manufacturing the same |
| 02/14/2008 | WO2008001410A3 Induction heating device of elements with complex shapes to provide a constant-depth surface hardening |
| 02/14/2008 | US20080036124 Furnace, and hot forming line including such a furnace |
| 02/14/2008 | US20080035251 Method of Manufacturing a Tubular Member |
| 02/14/2008 | US20080035247 High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and a method of producing the same |
| 02/14/2008 | DE102006037962A1 Wickelofen Coiler furnace |
| 02/13/2008 | CN201021456Y Clamp loop heat finalizing clamp |
| 02/13/2008 | CN201021455Y Novel residual heat utilization furnace |
| 02/13/2008 | CN101124344A High pressure heat treatment system |
| 02/13/2008 | CN101124063A Welded joints with new properties and provision of such properties by ultrasonic impact treatment |
| 02/13/2008 | CN101123127A A micro silver plating and copper-coated copper multi-strand line and its making method |
| 02/13/2008 | CN101121994A Cast steel for oil-well rig hoisting system and manufacturing method thereof |
| 02/13/2008 | CN101121958A Method of transporting and heat treating coils of hot rolled products in a rolling mill |
| 02/13/2008 | CN101121957A Link joint strengthening method for bicycle chain under weak carbon potential atmosphere |
| 02/13/2008 | CN101121956A Heat treatment method for using common carbon steel Q235 as link joint of bicycle chain |
| 02/13/2008 | CN101121184A Method for manufacturing titanium base composite pipe-rod materials |
| 02/13/2008 | CN101121179A Method for processing titanium pipe used for computer mobile hard disk main shaft sleeve |
| 02/13/2008 | CN101121178A Super plastic forming method for plate type heat converter special titanium plate |
| 02/13/2008 | CN100368596C Production technology of ceramic outer shell cover plate of crystal oscillator |
| 02/13/2008 | CN100368583C Thin gauge gas cylinder steel with good stamping performance and process for producing same |
| 02/13/2008 | CN100368580C High strength hot dip galvanized steel sheet, and its production method |
| 02/13/2008 | CN100368569C Strong malleableizing technique for tire mold and equipment |
| 02/13/2008 | CN100368327C Disc roller, its producing method and disc parts substrate material |
| 02/07/2008 | WO2008015964A1 Sealing apparatus and strip plate continuously annealing equipment |
| 02/07/2008 | WO2008015158A2 Method for producing a corrosion-resistant, workable sheet metal with full-surface coating of the joined, thermally treated steel sheets |
| 02/07/2008 | US20080029927 forming article to be heat treated, packing article to retain its shape, coating, encasing coated article in granular material and binding granular material together to form mold, heating encased article to first temperature to remove coating by melting, heating to second temperature to relieve stresses |
| 02/07/2008 | US20080029190 Method For Producing Snap Disks |
| 02/06/2008 | EP1884573A1 Steel manufacturing process and steel obtained using this process |
| 02/06/2008 | CN201016362Y Eccentric bearing of automobile diverter |
| 02/06/2008 | CN201016120Y Continuous three-chamber air cooling vacuum annealing oven |
| 02/06/2008 | CN201016119Y Burner for inner-hole quenching |
| 02/06/2008 | CN101120114A High-strength cold-rolled steel sheet excellent in coating adhesion, workability and hydrogen embrittlement resistance, and steel component for automobile |
| 02/06/2008 | CN101120113A High strength hot rolled steel sheet excellent in bore expanding workability and method for production thereof |
| 02/06/2008 | CN101117692A Non-magnetic high-strength stainless steel material and method for manufacturing the same |
| 02/06/2008 | CN101117691A Technique for processing heavy caliber pipes |
| 02/06/2008 | CN101117683A High-performance hydrogen sulfide corrosion resistant oil drill rocker and its heat treatment process |
| 02/06/2008 | CN101117659A Full-hydrogen hood-type annealing furnace control system |
| 02/06/2008 | CN101117658A Feeding-discharging mechanism of vacuum annealing furnace |
| 02/06/2008 | CN101117657A Bright annealing furnace |
| 02/06/2008 | CN101117656A Upright quenching furnace |
| 02/06/2008 | CN101116935A Valve collet producing technology |
| 02/06/2008 | CN100366996C Hardening fixture |
| 02/06/2008 | CN100366934C Rolling, sliding part and process for producing same |
| 02/06/2008 | CN100366779C Stone material cutting saw blade steel and its manufacturing method |
| 02/06/2008 | CN100366778C Steel in use for fire resistant, heat insulated oil line, and preparation method |
| 02/06/2008 | CN100366777C High temperature creep-resisting furnace shell material and its preparation method |
| 02/06/2008 | CN100366776C High-carbon steel wire rod with high strength and high toughness |
| 02/06/2008 | CN100366764C Roller-hearth continuous quenching device |
| 02/06/2008 | CN100366763C Roller heat-treatment processing device andmethod thereof |
| 02/06/2008 | CN100366762C Heat treatment furnace employing heat pipe to quickly lower temperature |
| 02/06/2008 | CN100366760C Method for making hardenable steel plates by firing, resulting steel plates |
| 02/06/2008 | CN100366758C New technology for nodular cast iron crankshaft isothermal hardening |
| 01/31/2008 | WO2008013305A1 Stainless steel sheet for parts and process for manufacturing the same |
| 01/31/2008 | WO2008013300A1 Process for producing pearlitic rail excellent in wearing resistance and ductility |
| 01/31/2008 | WO2008013233A1 Multilayer steel and method for producing multilayer steel |
| 01/31/2008 | WO2008013015A1 Non-oriented magnetic steel sheet with high strength |
| 01/31/2008 | US20080026241 Steel tubing with enhanced slot-ability characteristics for warm temperature service in casing liner applications and method of manufacturing the same |
| 01/31/2008 | DE102006042569B3 Procedure for continuous hardening of steel strips, comprises heating the strip material for hardening on hardening temperature, quenching the strips, and pressing the strips mechanically under heating to tempering temperature |
| 01/30/2008 | EP1361289B1 High strength spring made of heat-treated steel wire |
| 01/30/2008 | CN101115859A High-concentration carburized/low-strain quenched member and process for producing the same |
| 01/30/2008 | CN101115857A Hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet |
| 01/30/2008 | CN101115850A Novel fe-al alloy and method for producing same |
| 01/30/2008 | CN101113487A Annealing furnace roller surface peening coating and method for making same |
| 01/30/2008 | CN100365137C Centrifugal strengthening machine for strengthening steel ball by mutural collision |
| 01/30/2008 | CN100364682C Method for leveling hot profiles |
| 01/29/2008 | US7323071 Method for forming a hardened surface on a substrate |
| 01/25/2008 | CA2594631A1 Steel tubing with enhanced slot-ability characteristics for warm temperature service in casing liner application and method of manufacturing the same |
| 01/24/2008 | WO2007121074A3 Annealing of hot rolled steel coils with clam shell furnace |
| 01/24/2008 | US20080019805 Method of transporting and heat treating coils of hot rolled products in a rolling mill |
| 01/24/2008 | US20080018027 System for cooling shape-rolled rails |
| 01/24/2008 | US20080017284 Steel for oil well pipe excellent in sulfide stress cracking resistance and method for producing seamless steel pipe for oil well |
| 01/24/2008 | US20080017283 Steel For Machine Structural Use With Excellent Strength, Ductility, And Toughness And Method For Producing The Same |
| 01/23/2008 | EP1880777A1 Method of transporting and heat treating coils of hot rolled products in a rolling mill |
| 01/23/2008 | EP1011464B1 Systems for percutaneous bone and spinal stabilization, fixation and repair |
| 01/23/2008 | CN201010678Y Moulding-die used for Gleason pressing machine |
| 01/23/2008 | CN201010677Y Intermediate-frequency induction heat-treating device for lever parts with different wall thickness |
| 01/23/2008 | CN201010676Y Continuous annealing furnace for rolled steel samples |
| 01/23/2008 | CN201010675Y Continuous annealing oven heated air circulation mechanism |
| 01/23/2008 | CN201010674Y Sprocket-type stepping beam conveyer |
| 01/23/2008 | CN201010672Y Heating mechanism used for rail hardening of workpiece with rails |
| 01/23/2008 | CN201010391Y Thread drawing machine automatic adjusting vertical lifting tension |
| 01/23/2008 | CN101111620A Steel for machine structural use with excellent strength, ductility, and toughness and method for producing the same |