Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435)
02/1999
02/09/1999US5868456 Selectively heat treated side intrusion beams and method for making the same
02/04/1999WO1999005336A1 Ultra-high strength, weldable, boron-containing steels with superior toughness
02/04/1999WO1999005335A1 Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
02/04/1999WO1999005334A1 Ultra-high strength, weldable, essentially boron-free steels wit h superior toughness
02/04/1999WO1999005328A1 Method for producing ultra-high strength, weldable steels with superior toughness
02/04/1999WO1999005327A1 Laser hardening of screw forms
02/04/1999DE19733135A1 Producing an article of two constituent components
02/03/1999EP0894206A1 Laminated composite material and method of improving the surface hardness of laminated composite materials
02/03/1999EP0894150A1 Top hat furnace
02/03/1999EP0776381A4 Method for heat treating a metal component
02/02/1999US5866064 Sealing apparatus for compartment inlet/outlet of atmosphere facility
02/02/1999US5865385 Comminuting media comprising martensitic/austenitic steel containing retained work-transformable austenite
02/02/1999US5865021 Coated roller chain pin
01/1999
01/27/1999EP0893192A1 Process for imparting residual compressive stresses to steel machine components
01/27/1999CN1206453A Method and apparatus for containing and suppressing explosive
01/27/1999CN1205920A Model supported method for controlling cooling of rolled piece during rolling and cooling
01/27/1999CN1041844C Reproduction of diamond saw disc body
01/26/1999US5863356 Method for producing electric sheets with a glass coating
01/26/1999CA1340332C Process for producing optically active benzene-sulfonamide derivatives
01/21/1999WO1999002748A1 Amorphous magnetostrictive alloy with low cobalt content and method for annealing same
01/21/1999WO1999002744A1 Method for performing a heat treatment on metallic rings, and bearing ring thus obtained
01/21/1999WO1999002742A2 Method for manufacturing high magnetic flux density grain oriented electrical steel sheet based on low temperature slab heating method
01/21/1999WO1998047648A3 Low-alloy cast iron tappet, apparatus, and process for its manufacturing
01/21/1999DE19730383A1 Training of element comprising alloy with shape memory
01/20/1999EP0892079A1 Heat-resisting cast steel
01/20/1999EP0721400B1 Method for improving railway wheels
01/20/1999CN1041751C Cooled cylinders used mainly for handling siderurgical products
01/19/1999US5861067 Steel machine component having refined surface microstructure and process for forming the same
01/19/1999CA2065641C Method for producing by continuous heat treatments oil-tempered steel wires for springs having high strength and high toughness
01/19/1999CA2031361C Method and apparatus for surface austempering of cast iron parts
01/13/1999EP0890808A1 Insulating of furnace rolls
01/13/1999EP0890653A1 Process for manufacturing of articles from carburized or carbonitrided steel and steel for the manufacturing of said articles
01/13/1999EP0714452B1 Process and device for heat treatment in a hood type annealing furnace
01/13/1999EP0616646B1 Method for the thermal treatment of metal products
01/12/1999US5858128 High chromium martensitic steel pipe having excellent pitting resistance and method of manufacturing
01/07/1999EP0889139A1 Device for flushing cold drawn coiled pipes in a roller-hearth furnace
01/07/1999DE19815483A1 Apparatus and method for surface hardening of steel balls for a ball bearing
01/06/1999CN1203953A Heat treatment method of international combustion engine cylinder and its equipment
01/06/1999CN1203952A Method for heat treating rolled stock and device to achieve the method
01/05/1999US5855702 Method and apparatus for quenching workpieces
01/05/1999US5855690 Method of evaporation removal of oily substances from metallic articles
01/05/1999US5855531 Component parts of a toroidal-type continuously variable transmission having improved life
01/05/1999US5855477 Belt conveyance baking furnace
12/1998
12/30/1998WO1998059083A1 Method for manufacturing high carbon sintered powder metal steel parts of high density
12/30/1998EP0887551A2 Laser hardened reed valve
12/30/1998EP0763177B1 Holder for workpieces with a non-ideal rigidity
12/30/1998EP0720664B1 Method of treating at least one component made of weakly magnetic material
12/30/1998CN1203691A Heat-treatment of glassy metal alloy for article surveillance system markers
12/30/1998CA2294066A1 Method for manufacturing high carbon sintered powder metal steel parts of high density
12/29/1998US5853660 Rolling bearing made of improved bearing steel
12/29/1998US5853507 Method for manufacturing heat exchangers to allow uniform expansion of tubing
12/29/1998US5853199 For use in a well bore
12/29/1998CA2146107C Aluminized steel alloys containing chromium and method for producing same
12/23/1998EP0885676A1 Method for influencing the chip flow behaviour on tool surfaces
12/23/1998CN2301451Y Improved quenching cooling device
12/23/1998CN1202527A Medium frequency quenching heat treatment technology for edge plate of shovel loader and output device of medium frequency quenching
12/22/1998US5850866 Heat treatment of metal castings and in-furnace sand reclamation
12/16/1998EP0884396A1 Method for manufacturing a railway wheel and railway wheel so obtained
12/16/1998EP0883779A1 Method and apparatus for containing and suppressing explosive detonations
12/16/1998CN1201991A Process for heat treatment, in magnetic field, of component made of soft magnetic material
12/16/1998CN1041219C Surface hardening treatment method for inner wall of long cylinder
12/15/1998US5849114 Method of forming plate-type track shoe
12/09/1998EP0883141A1 Heating process with magnetic field of a soft magnetic component
12/09/1998EP0882809A2 Composition and process for preventing blistering during heat treating of aluminum alloys
12/09/1998EP0882807A1 Heat resistant, nickel free constructional steel and process for making plate from it
12/09/1998EP0882804A1 Method for heat treating rolled stock and device to achieve the method
12/09/1998CN2299873Y Large internally heated vacuum annealing furnace
12/09/1998CN1201419A Stainless steel surface claddings of continuous caster rolls
12/08/1998US5846501 Process for the selective recovery of the salt constituents from used hardening shop salts which contain nitrite-nitrate
12/08/1998US5846340 Process for preparing a heat treatment atmosphere and method for regulating said process
12/03/1998WO1998054370A1 Method for manufacturing quenched thin-walled metal hollow casing by blow-moulding
12/02/1998EP0881430A1 Radiant tube supporting apparatus
12/02/1998EP0881305A1 Process for manufacturing ferritic stainless steel thin strips and thin strips obtained
12/02/1998EP0880423A1 Cutting die and method of forming
12/02/1998EP0880422A1 Cutting die and method of making
12/02/1998EP0627965B1 Process for applying and removing liquid coolant to control temperature of continuously moving metal strip
12/02/1998CN2299067Y I. C. Engine piston pin rare-earth gasification direct quenching appts.
12/02/1998CN1200477A Means for supparting radiation tubes
12/02/1998CN1200411A Steel for cold forming
12/02/1998CN1040998C Method for prodn. of grain-oriented magnetic steel plate with improved loss of remagnetization
12/01/1998US5843246 Process for producing dual phase ferritic stainless steel strip
12/01/1998US5843117 Implantable vascular and endoluminal stents and process of fabricating the same
12/01/1998US5842855 Sealing apparatus for inlet/outlet of compartment of continuous heat treatment furnace, continuous vacuum evaporation facility or the like
12/01/1998CA2147979C Cold formed high-strength steel parts
11/1998
11/26/1998WO1998053642A1 Induction oven for melting metals
11/26/1998CA2206108A1 Method of straightening annular metallic sheets
11/25/1998EP0879897A1 Process for continuous annealing of metal substrates
11/25/1998CN2298260Y Heat treatment furnace for industry
11/24/1998US5840136 Temperature-raising bainite forming process
11/24/1998US5840131 Process for producing grain-oriented electrical steel sheet having excellent glass film and magnetic properties
11/19/1998WO1998052104A1 Method for stamping watch cases and resulting products
11/19/1998WO1998051834A1 High-toughness spring steel
11/19/1998WO1998051286A1 Use of an odorant for treating headaches
11/19/1998DE19738976A1 Apparatus for thermal straightening of a metal component
11/19/1998CA2290457A1 Use of an odorant for treating headaches
11/18/1998EP0878555A1 Workpiece guiding device
11/18/1998EP0877826A2 Skid mounted precision heat treat system
11/18/1998EP0877824A1 Ready-to-use metal wire and method for producing same
11/18/1998CN2297452Y Non-ferrous metal bar tube tempering furnace
11/17/1998US5837189 Quench management system