Patents
Sitemap › C21 - Metallurgy of iron › C21D - Modifying the physical structure of ferrous metals; General devices for heat treatment of ferrous or non-ferrous metals or alloys; Making metal malleable by decarburisation, tempering, or other treatments › C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering
Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435)
08/1998
08/26/1998CN2288974Y Rotable quenching die
08/26/1998CN1191241A Bell tempering furnace
08/25/1998US5798007 Process and apparatus for the continuous heat treatment of a metal strip travelling in a different atmosphere
08/19/1998EP0859068A1 Method and apparatus for controlling the atmosphere in a heat treatment furnace
08/19/1998EP0859067A1 Method and apparatus for controlling the atmosphere in a heat treatment furnace
08/19/1998EP0858574A1 Device for heat treatment
08/19/1998CN2288184Y Medium-frequency induction heater for changed section steel rail
08/19/1998CN1190675A Air flow controller
08/18/1998US5796078 Method for the inductive surface hardening of workpieces
08/18/1998US5795538 Apparatus for steel hardening and process therefor
08/13/1998WO1998035066A1 Method for hardening camshafts and linear inductor for the implementation of said method
08/13/1998CA2280501A1 Method for hardening camshafts and linear inductor for the implementation of said method
08/12/1998CN1190157A Variable displacement compressor, swash plate, and method for hardening swash plate
08/11/1998US5791656 Seal assembly for heat treatment furnaces using an atmospheric gas containing hydrogen gas
08/06/1998WO1998033946A1 Top hat furnace
08/06/1998WO1998033945A1 Ferromagnetic amorphous metallic alloy and annealing method
08/06/1998DE19804172A1 Hot or warm working steel tool, especially punch
08/06/1998DE19803259A1 Bell furnace, especially for bright annealing steel strip coils
08/06/1998DE19729083C1 Production of several weld seams by means of a single electron beam
08/06/1998CA2279981A1 Ferromagnetic amorphous metallic alloy and annealing method
08/05/1998EP0856591A1 Steel for cold forming
08/05/1998EP0856588A2 Heat treating furnace for a continuously supplied metal strip
08/05/1998EP0856587A1 Process for the heat treatment of iron-based metal parts in an active atmosphere with a high potential of carbon
08/05/1998CN1189789A Method and plant for the manufacture of a strip of formable steel
08/05/1998CA2196843A1 Strip cooling, heating, wiping or drying apparatus and associated method
08/04/1998US5789721 For a combustion sample furnace
08/04/1998US5788784 Uniform spraying air-water mist; evaporation heat of water cools metal; water reused.
07/1998
07/30/1998DE19702966A1 Penetration of charge for metal workpiece(s) e.g. in washing installation(s)
07/29/1998CN2286755Y Roller-type after-heat steam-water cooling and quenching device
07/29/1998CN1188887A Non-ferrous metal bar tubing tempering furnace
07/29/1998CA2228074A1 Process for the heat treatment of iron-based metal parts in an active atmosphere with a high potential of carbon
07/28/1998US5785774 Exothermic generation og carbon monoxide and hygrogen for heat treatment
07/28/1998US5785773 Coating cold strip during holding time with thin surface film by oxidation by adding carbon dioxide to protective gas containing hydrogen and nitrogen
07/28/1998CA2081385C Continuous steel heating furnace featuring free setting of an in-furnacetemperature pattern
07/22/1998EP0853810A1 Heat-treatment of glassy metal alloy for article surveillance system markers
07/21/1998US5783001 Exposure to vacuum to remove volatile surface contaminants
07/21/1998US5783000 Method for heat treatment of steel, and products of steel
07/21/1998US5782998 Grain oriented electrical steel sheet having specular surface
07/21/1998US5782953 Surface hardened powdered metal stainless steel parts
07/14/1998US5779826 Method for forming heat treating atmospheres
07/08/1998CN1186865A Die and quenching method of the same
07/07/1998US5775122 Method of and apparatus for cooling hot-rolled structural shapes
07/02/1998WO1998028450A1 High strength deep drawing steel developed by reaction with ammonia
07/02/1998DE19757359A1 Carbon steel for hot forged connecting rod
07/02/1998CA2250742A1 High strength deep drawing steel developed by reaction with ammonia
07/01/1998CN2285298Y Cooling device used in metal heat treatment equipment
06/1998
06/30/1998US5772957 High strength steel composition having enhanced low temperature toughness
06/30/1998US5772795 Nitriding in annealing furnace; strengthening
06/30/1998US5772717 Tempering method using a two phase flow of cryogen
06/30/1998US5772428 Method and apparatus for heat treatment including H2 /H2 O furnace region control
06/30/1998CA2116504C Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatigue resistance
06/25/1998WO1998027243A1 Method of annealing nonferrous metal parts without stickers
06/25/1998DE19704438C1 Induction hardening of camshaft
06/25/1998DE19652607A1 Verfahren zum kleberfreien Glühen von Buntmetallteilen A method for adhesive-free annealing of ferrous metal parts
06/24/1998EP0849555A1 Furnace for firing a glasslined product
06/24/1998EP0849368A1 Shaped rolled product and method of making the same
06/24/1998EP0849367A1 Installation for hardening metallic articles
06/24/1998CN1185488A Sintering furnace for enamel product
06/24/1998CN1185359A Formed rolled piece and mfg. method thereof
06/23/1998US5770838 Induction heaters to improve transitions in continuous heating system, and method
06/23/1998US5770146 System for the heat treatment of metallic annealing material
06/23/1998US5769965 Annealing, then forming nitride layer on electromagnetic fuel injection valves, chromium steels
06/23/1998US5769906 Process for recovering the salt constituents from hardening-shop salt baths
06/23/1998US5769629 Sealing apparatus for inlet/outlet of atmosphere heat treatment furnace
06/23/1998CA2117481C Process and apparatus for applying and removing liquid coolant to control temperature of continuously moving metal strip
06/18/1998WO1998026107A1 Diffusion bonded sputtering target assembly with precipitation hardened backing plate and method of making same
06/18/1998DE19651878A1 Production of protective or reaction gas for heat treatment of metals
06/17/1998EP0848397A1 Manufacturing process of a soft magnetic iron based alloy component with nanocristalline structure
06/17/1998EP0848073A1 Stress relieving of an age hardenable aluminium alloy product
06/17/1998CN1185182A Martensitic stainless steel having high mechanical strength and corrosion resistance and relative mfd. articles
06/17/1998CN1185012A Process for mfg. magnetic component made of iron-based soft magnetic alloy having nanocrys talline structure
06/16/1998US5767479 Laser beam machining apparatus and corresponding method which employs a laser beam to pretreat and machine a workpiece
06/16/1998US5766505 Mixture of polyalkylene glycol and a glycol ether
06/16/1998US5766378 Stainless steel surface claddings of continuous caster rolls
06/10/1998EP0846780A2 A method of making a self-sharpening metallic cutting blade or a cultivator swep and a cutting blade or a cultivator sweep
06/10/1998CN1038667C Method and apparatus for preparing nitrogen atmosphere by film separation for metallic heat treatment
06/09/1998US5762730 Rapid heating by plasma jet followed by rapid cooling
06/09/1998US5762723 Crystal structure of steels made of iron, carbon, silicon and manganese
06/09/1998CA2220608A1 Method of surface hardening a cutting blade and self-sharpening blade
06/04/1998WO1998023535A1 Method and device for producing a gas mixture containing n2, co and h¿2?
06/04/1998WO1998023397A2 Device for cooling extruded profiles
06/04/1998DE19649356A1 Verfahren und Vorrichtung zum Herstellen eines N¶2¶, CO und H¶2¶ enthaltenden Gasgemischs Method and apparatus for producing a N¶2¶, CO and H¶2¶ containing gas mixture
06/04/1998DE19649073A1 Vorrichtung zur Abkühlung von Strangpreßprofilen Device for cooling extruded
06/03/1998EP0845544A1 Steel product made from bainitic steel and process for making the steel product
06/03/1998CN2282950Y Vacuum quick hardening furnace
06/02/1998US5759309 Thermal process for selectively hardening track chain links
06/02/1998US5759299 Steels with bainite structure
06/02/1998US5759294 Process for the production of grain oriented magnetic steel sheets having improved remagnetization losses
05/1998
05/28/1998DE19751736A1 Variable displacement compressor for vehicle air conditioning unit
05/28/1998DE19716294C1 Apparatus and method for inductive hardening of profiled camshafts
05/27/1998CN2282553Y Wire induction heater
05/27/1998CN1182800A Method of quick scan fusing hardening for surface of cast iron
05/20/1998EP0841993A1 Method and plant for the manufacture of a strip of formable steel
05/20/1998EP0743888B1 Device and process for shaping a laser beam, espacially in laser-beam surface machining
05/20/1998EP0725839B1 Process for annealing items and suitable annealing furnace
05/20/1998DE19750606A1 Heat treatment and tempering of surgical needles
05/20/1998DE19647248A1 Workpiece carrier, unit for removal of workpieces from a roller hearth furnace, and heat treatment installation
05/20/1998CN2281987Y High sealed heating room for vacuum quenching furnace
05/19/1998US5753055 Process for austempering ductile iron
05/13/1998CN1181600A Anisotropic magnet powders and their production method
1 ... 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 ... 275