| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 10/08/2008 | CN101280386A Zinc-platable phosphorus-containing low-carbon low-silicon cold rolled TRIP steel and heat treatment process thereof |
| 10/08/2008 | CN101280353A Hardness heat treatment quenching process for center of steel ball specifically for wind generating equipment |
| 10/08/2008 | CN101279335A Ultra-large tube sheet heat flattening method |
| 10/08/2008 | CN100425106C Plasma-assisted decrystallization |
| 10/08/2008 | CN100424379C Metal push belt, transverse element and manufacturing method |
| 10/08/2008 | CN100424214C High-chromium cast steel milling ball, and its preparing method |
| 10/08/2008 | CN100424195C Heat treatment process of sulfur resistant drill pipe joint |
| 10/07/2008 | US7432471 Laser beam hardening tool |
| 10/07/2008 | US7431780 Using determined distortions in accordance with predetermined information that relates heat treatments of the workpiece to resultant distortions, to obtain or generate heat control data defining heat treatments to be applied to corresponding regions of workpiece, which will cause determined distortion |
| 10/07/2008 | US7431779 Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces |
| 10/07/2008 | US7431193 Vibration stress relief of weldments |
| 10/02/2008 | WO2008116459A1 Inductor for inductor hardening of metal, rod-shaped toothed racks |
| 10/02/2008 | US20080237946 Continuous carburizing furnace |
| 10/02/2008 | US20080236710 Method for reducing formation of electrically resistive layer on ferritic stainless steels |
| 10/02/2008 | US20080236709 Cold-worked steels with packet-lath martensite/austenite microstructure |
| 10/02/2008 | US20080236341 Powdered metal multi-lobular tooling and method of fabrication |
| 10/02/2008 | US20080236237 Method of making a metallic thin wire for a medical tool |
| 10/02/2008 | US20080236235 Heat-Treatment Apparatus for Steel Plate and Manufacturing Line of Steel Plate Having the Heat-Treatment Apparatus |
| 10/02/2008 | DE102004005011B4 Regelverfahren und Regler für ein Walzgerüst Control method and controller for a rolling mill |
| 10/01/2008 | EP1975266A1 Ultrahigh-strength steel sheet |
| 10/01/2008 | EP1974064A1 Method and device adjusting targeted combinations of properties of polyphase steel |
| 10/01/2008 | EP1973679A2 Method for delaying of cooling and hardening of desired zones of a sheet during a hot metal stamping process |
| 10/01/2008 | CN201125260Y Rotating lifting mechanism in steel tube quenching device |
| 10/01/2008 | CN201125259Y Roller underlying type cylinder continuous heat treating production line |
| 10/01/2008 | CN201125258Y Gas protecting heat processing furnace |
| 10/01/2008 | CN201125257Y Quenching machine tool |
| 10/01/2008 | CN201125256Y Local induced surface hardening coil detecting device of rocker shaft series parts |
| 10/01/2008 | CN101275210A Online quenching device for solid solution heat treatment |
| 10/01/2008 | CN101275208A Austenitic free-cutting stainless steel |
| 10/01/2008 | CN101275207A H2S-corrosion-resistant tool joint for petroleum drill pipe and hot treatment method thereof |
| 10/01/2008 | CN101275180A Method for eliminating defective structure in structural alloy steel and tool steel substrate by using impulse current |
| 10/01/2008 | CN101275179A Heat treatment process for automobile drive axle housing |
| 10/01/2008 | CN101275178A Gear quenching shielding liquid-blocking device |
| 10/01/2008 | CN101275177A Anti-fatigue controlled laser shot peening method and device therefor |
| 10/01/2008 | CN100422576C High-strength connecting rod and method of producing same |
| 10/01/2008 | CN100422375C Chromium steel series die steel and heat treatment technique thereof |
| 10/01/2008 | CN100422374C Anti-sulfur drill rod and method for manufacturing the same |
| 10/01/2008 | CN100422371C Chromic-nickel-free high-strength high ductility structural steel and manufacturing method thereof |
| 10/01/2008 | CN100422356C Method for controlling furnace temperature of heating furnace for continuous annealing |
| 10/01/2008 | CN100422354C Spraying and quenching device for steel pipe, petroleum well pipe and drill pipe medium frequency heat treatment system |
| 10/01/2008 | CN100422353C Medium frequency induction heating treatment method for steel pipe, petroleum well pipe and drill pipe |
| 10/01/2008 | CN100422351C Stepped quenching process and its apparatus suitable for bainite and martensite quenching |
| 10/01/2008 | CN100422350C Monitored laser shock peening |
| 10/01/2008 | CN100421828C Method and device for cooling or quenching slabs and sheets with water in a cooling pond |
| 09/30/2008 | US7429174 Clean atmosphere heat treat for coated turbine components |
| 09/25/2008 | WO2008113422A1 Production of a partial fiber composite structure in a component using a laser remelting treatment |
| 09/25/2008 | US20080230154 Absorber layer for dsa processing |
| 09/24/2008 | EP1972694A2 Crankshaft, internal combustion engine, transportation apparatus, and production method for crankshaft |
| 09/24/2008 | EP1972395A2 Apparatus and method for reducing a hollow rack end diameter and hollow rack thus obtained |
| 09/24/2008 | EP1971693A2 Deoxygenation of furnaces with hydrogen-containing atmospheres |
| 09/24/2008 | CN201121201Y Hot galvanizing wire annealing oven |
| 09/24/2008 | CN201121199Y Tool blade angle quenching apparatus |
| 09/24/2008 | CN101270458A Metastable austenite abrasion-proof cast steel containing manganese-tungsten-aluminum |
| 09/24/2008 | CN101270452A Connection material for flashing light jointing of hadfield steel cross frog and carbon steel rails, and production method thereof |
| 09/24/2008 | CN101270448A Abrasion-proof steel alloy for manufacturing crusher hammer and hammer manufacturing method |
| 09/24/2008 | CN101270447A Steel alloy for manufacturing crusher hammer and hammer manufacturing method |
| 09/24/2008 | CN101270438A Normalized steel for resistance welding petroleum case pipe with low yield ratio, resistance welding casing tube and its manufacturing method |
| 09/24/2008 | CN101270437A High-tension steel with excellent weldability and plastic deformation ability |
| 09/24/2008 | CN101270409A Anneal technique for producing SPCC steel grade with zincing wire annealing oven |
| 09/24/2008 | CN101270408A Thermal treatment method for high-carbon steel train wheel circular rim surface and heat treatment apparatus |
| 09/24/2008 | CN101270405A Inducer for piston ring groove quenching |
| 09/24/2008 | CN101270404A Method for producing special fastener |
| 09/24/2008 | CN101269742A High-strength high abrasion-proof transportation chain and manufacturing process |
| 09/24/2008 | CN101269432A Dissimilar metal welding method for WCB steel valve and WB36 steel pipeline |
| 09/24/2008 | CN101269387A Hot extrusion production technique for improving plastisity of magnesium alloy sectional material |
| 09/24/2008 | CN101269384A Production method for cold rolling non-orientation silicon steel thin belt |
| 09/23/2008 | US7427375 Diffuser for an annealing furnace |
| 09/23/2008 | CA2507084C Gas jet cooling device |
| 09/18/2008 | WO2008110670A1 Steel for hot working or quenching with a tool having an improved ductility |
| 09/18/2008 | WO2008110193A1 Heat treatment furnace with negative pressure compensation |
| 09/18/2008 | DE102007012688A1 Verfahren zur Behandlung von Blechen A method for the treatment of metal sheets |
| 09/17/2008 | EP1970456A1 Heat treatment furnace |
| 09/17/2008 | EP1970136A1 Plate-shaped workpiece positioning structure for hot press forming |
| 09/17/2008 | EP1969161A2 High speed tin plating process |
| 09/17/2008 | CN201116305Y Ring shaped pipeline structure for steel plate cold-controlling equipment |
| 09/17/2008 | CN101268203A Process for manufacturing cold-formed precision steel pipes |
| 09/17/2008 | CN101266855A Rare earth permanent magnetism material and its making method |
| 09/17/2008 | CN101265854A Laser welding forged steel integral piston with closed inner-cooling oil recess and its fabrication process |
| 09/17/2008 | CN101265582A 20CrMnMo energy-saving carburizing composite heat treating process |
| 09/17/2008 | CN101265557A Rotary compressor roller material and method for producing roller |
| 09/17/2008 | CN101265551A Steel for preparing chain railway node and producing method thereof |
| 09/17/2008 | CN101265516A Steel band quenching technique and cooling medium used for the same |
| 09/17/2008 | CN101265514A Composite heat treatment method for 30CrMnSiA steel thin wall spinning cylinder-shape element |
| 09/17/2008 | CN101264507A Steel-forged ball processing technique |
| 09/17/2008 | CN100419113C High-strength deformed steel bar and method of manufacturing same |
| 09/17/2008 | CN100419111C Sulfur-preventing oil well pipe and its production process |
| 09/17/2008 | CN100419110C Weld metal of low temperature toughness and SR cracking resistance used for high-strength Cr-Mo steel |
| 09/17/2008 | CN100419097C Catenary type furnace |
| 09/17/2008 | CN100419096C Netted belt furnace for heating roller with both oil and electricity |
| 09/17/2008 | CN100419095C U-shaped afterheat utilizing annealing furnace below roller |
| 09/17/2008 | CN100419094C Process for removing mixed crystal defect of large rotor forging |
| 09/17/2008 | CN100418755C Stable process treatment method for artificial plate, plastic plate, rubber plate continuous press roll shaft |
| 09/17/2008 | CN100418697C High magentic induction oriented electrical steel sheet and its manufacturing method |
| 09/17/2008 | CN100418696C Shunting forging process for automobile reverse gear |
| 09/12/2008 | WO2008108248A1 Thrust bearing |
| 09/12/2008 | CA2677807A1 Method for reducing formation of electrically resistive layer on ferritic stainless steels |
| 09/11/2008 | US20080217315 Electrically Heatable Honeycomb Body and Method for Operating It |
| 09/11/2008 | US20080216928 High strength, toughness, corrosion resistance; noncracking |
| 09/11/2008 | US20080216927 Ferrite steel containing chromium; tempering; heat treatment; stress resistance |
| 09/11/2008 | US20080216926 Short laser pulses; coloring metal |