| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 08/21/2003 | WO2003068998A1 Gas quenching installation and the corresponding quenching method |
| 08/21/2003 | WO2003068997A1 Heat treatment furnace |
| 08/21/2003 | US20030156361 Narrow track width; high density magnetic recording media |
| 08/21/2003 | US20030155052 High strength steel pipe for an air bag and a process for its manufacture |
| 08/21/2003 | US20030155048 Electroplating annealed thin sheets and method for producing the same |
| 08/21/2003 | US20030155041 Method of production of surface densified powder metal components |
| 08/21/2003 | US20030155039 Inducing phase transformation, from ferromagnetic to paramagnetic phase at low temperature; high strength steel construction materials for drilling |
| 08/20/2003 | EP0954398A4 Sand core removal and casting heat treatment |
| 08/20/2003 | CN1437658A Low-carbon steel sheet for mask of tension type cathode ray tube with bridge and mask and cathode ray tube |
| 08/14/2003 | WO2003066924A1 Martensitic stainless steel and method for manufacturing the same |
| 08/14/2003 | WO2003066923A1 Steel wire excellent in descalability in mecanical descaling and method for production thereof |
| 08/14/2003 | WO2003066921A1 High strength steel plate and method for production thereof |
| 08/14/2003 | US20030150529 High-strength bolt excellent in delayed fracture resistance characteristic and its steel product |
| 08/13/2003 | EP1335034A1 Low-carbon steel sheet for mask of tension type cathode ray tube with bridge and mask and cathode ray tube |
| 08/13/2003 | EP1196643B1 Method and device for hardening bearing surfaces of crankshafts |
| 08/13/2003 | CN2565556Y Multi roller rolling mill |
| 08/13/2003 | CN1436252A Zinc coat annealed thin sheets and method for producing same |
| 08/13/2003 | CN1436251A Steel alloy, plastic moulding tool and tough-hardened blank for plastic moulding tools |
| 08/13/2003 | CN1117696C Process for generation of low dew-point, oxygen-free protective atmosphere for thermal treatments |
| 08/13/2003 | CN1117649C Cutting mold mfg. method |
| 08/12/2003 | US6605250 Arrangement in connecting with cooling equipment for cooling billets |
| 08/12/2003 | US6605166 Noncracking; stress resistance; drawing steel sheet forming wire |
| 08/12/2003 | US6605163 Process for manufacturing a strip made of an Fe-Ni alloy |
| 08/07/2003 | US20030145916 12Cr Alloy steel for a turbine rotor |
| 08/07/2003 | US20030145679 Rapid infrared heating of a surface |
| 08/07/2003 | DE10221547C1 Surface treatment of metallic materials comprises using an atmosphere having a predetermined oxygen concentration, in which the material is oxidized in the layers close to the surface by introducing an oxygen-containing gas stream |
| 08/06/2003 | EP1332650A1 Atmospheric plasma method for treating sheet electricity conducting materials and device therefor |
| 08/06/2003 | EP1332233A1 Proceeding when producing pieces of metal materials capable of being hardened, a production process and a production line |
| 08/06/2003 | CN1434766A Use of dimensionally stable iron-chrome-aluminum film |
| 08/06/2003 | CN1434137A 淬火方法 Quenching method |
| 08/06/2003 | CN1434136A Straitheming annealing method for flat and square steel material |
| 08/06/2003 | CN1433942A Cylinder shape pipe piece with inner harden layer and production method and equipment |
| 08/06/2003 | CN1433900A Technological method for raising toughness and hardening layer depth of heavy truck axle shaft |
| 08/06/2003 | CN1117172C Stainless steel |
| 08/06/2003 | CN1117170C Cold workable steel bar or wire and process |
| 08/05/2003 | US6602359 Steel bar or wire rod for cold forging excellent in ductility after spheroidizing annealing, having specific chemical composition, which has been hardened only in surface layer, and is capable of preventing cracking during cold forging |
| 08/05/2003 | US6602358 Outer race for constant velocity joint, having improved anti-flaking properties and shaft strength, and process for producing the same |
| 08/05/2003 | CA2080788C Heat treating oil composition |
| 07/31/2003 | US20030144157 Oil composition for heat treatment of a gear and gear treated by using the oil composition |
| 07/30/2003 | EP1200636B1 Process for the improvement of the magnetic characteristics in grain oriented electrical silicon steel sheets by laser treatment |
| 07/30/2003 | EP1194251B1 Method and apparatus for in-line heat treatment of hot rolled stock |
| 07/30/2003 | CN2563162Y Inductor for ball head pin induction quenching |
| 07/24/2003 | WO2003060170A1 Process for hardening a circumferential surface on a steel article |
| 07/24/2003 | US20030136484 Quenching method |
| 07/24/2003 | US20030136483 Durability, chemical and corrosion resistance |
| 07/24/2003 | US20030136224 Corrosion resistance; tempering, heat treatment, reduction |
| 07/23/2003 | EP1329532A2 Ferritic heat-resistant steel and method for producing it |
| 07/23/2003 | EP1329531A2 Ferritic heat-resistant steel and method for producing it |
| 07/22/2003 | US6596098 Wire rod for high-fatigue-strength steel wire, steel wire and method of producing the same |
| 07/22/2003 | CA2268623C High ductility very clean non-micro banded die casting steel and method of manufacture thereof |
| 07/17/2003 | WO2003057929A1 Method for producing grain-oriented silicon steel plate with mirror surface |
| 07/17/2003 | US20030131914 Steel plate to be precipitating tinfor weleded structures, method for manufacturing the same, welding fabric using the same |
| 07/17/2003 | US20030131912 The concentration of CO2 and/or CO in the furnace is monitored by an analyzer; injecting inert gas into the furnace at least twice per hour in response to elevated carbon oxide concentration |
| 07/17/2003 | US20030131911 Tool steel for plastic molds |
| 07/16/2003 | EP1327695A1 Steel plate excellent in shape freezing property and method for production thereof |
| 07/16/2003 | EP1327692A2 Process for manufacturing of a steel product and product obtained |
| 07/16/2003 | EP1327125A1 Surface-hardened precision weight and process of making same |
| 07/16/2003 | EP1326725A1 Production of thin steel strip |
| 07/16/2003 | EP1326723A1 A method of producing steel |
| 07/16/2003 | CN2560644Y Quenching inductor with combined structure |
| 07/16/2003 | CN1115080C Pre-heating furnace for baked amorphous carbon bodies |
| 07/15/2003 | US6592690 Method for hardening ring-shaped grooves by means of laser beams |
| 07/15/2003 | US6592685 15-18% chromium, </=.5% manganese, silicon and carbon 4-10% nickel, >/=15% cobalt, </=4% tungsten, </=4% molybdenum and copper, .5-1% vanadium, niobium, tanalum, hafnium and zirconium totalling .001-.1%, 001-.05% titanum, .13-.25% |
| 07/15/2003 | US6592684 Rolling bearing |
| 07/10/2003 | WO2003056041A1 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor |
| 07/10/2003 | US20030127446 Means and method for heating |
| 07/10/2003 | US20030127163 Controlling temperature; heating, forging, rolling, working, finishing |
| 07/10/2003 | US20030127161 Controlled heating; surface treatment |
| 07/09/2003 | EP1325966A1 Super high tensile cold-rolled steel plate and method for production thereof |
| 07/09/2003 | EP1325174A2 Process of treating stainless steel |
| 07/09/2003 | EP1325166A2 Stainless steel and stainless steel surface |
| 07/09/2003 | EP1325162A1 Device for inductively heating workpieces |
| 07/09/2003 | EP0956369B1 A method for manufacturing of curved and quenched profiled elements and a die tool for carrying out the method |
| 07/08/2003 | US6591215 Systems and methods for controlling the activity of carbon in heat treating atmospheres |
| 07/08/2003 | US6589369 High fatigue strength steel sheet excellent in burring workability and method for producing the same |
| 07/08/2003 | US6589363 Method for making heat treated stainless hydraulic components |
| 07/08/2003 | US6588491 Apparatus for the direct production of scale-free thin metal strip |
| 07/03/2003 | WO2003054236A1 Method and device for controlled straightening and cooling of a wide metal strip, especially a steel strip or sheet metal, running out of a hot rolled strip rolling mill |
| 07/03/2003 | US20030123770 Rolling bearing |
| 07/03/2003 | US20030123769 Bearing part, heat treatment method thereof, and rolling bearing |
| 07/03/2003 | US20030121576 Steel sheet and method for manufacturing the same |
| 07/03/2003 | US20030121574 Process for producing wear-resistant surface layers |
| 07/02/2003 | EP1324047A2 Rolling bearing unit with rotation speed detection instrument for use in cars and method for working outer race for use in this bearing unit |
| 07/02/2003 | EP1322900A1 Method for heating metallurgical products |
| 07/02/2003 | EP1322800A2 Surface on a stainless steel |
| 07/02/2003 | CN1427897A Heating furnace with regenerative burners and method of operating heating furnace |
| 07/01/2003 | US6585834 Method for performing a heat treatment of metallic rings, and bearing ring thus obtained |
| 07/01/2003 | US6585030 Method of producing steel strip |
| 06/26/2003 | WO2003052156A1 Grain refinement of alloys using magnetic field processing |
| 06/26/2003 | WO2003052153A1 Triple-phase nano-composite steels |
| 06/26/2003 | WO2003052152A1 Nano-compsite martensitic steels |
| 06/26/2003 | WO2003052148A1 Method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips |
| 06/26/2003 | WO2003052147A1 Method for preventing adhesive substances and scratches from occurring during recrystallization annealing of cold strips |
| 06/26/2003 | WO2003052146A1 Quenching oil compositions |
| 06/26/2003 | WO2003052145A1 Quenching oil compositions |
| 06/26/2003 | US20030116554 Moveable heat exchanger |
| 06/26/2003 | US20030116239 Method of manufacturing a ferritic-martensitic, oxide dispersion strengthened alloy |
| 06/26/2003 | CA2470953A1 Quenching oil compositions |
| 06/26/2003 | CA2470384A1 Nano-composite martensitic steels |
| 06/26/2003 | CA2470323A1 Quenching oil compositions |