| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 05/12/1998 | US5751759 Pre-heating furnace for baked amorphous carbon bodies |
| 05/12/1998 | US5750205 Surface treatment of metals by shock-compressed plasma |
| 05/06/1998 | EP0839918A1 Method and apparatus for cooling an object |
| 05/06/1998 | EP0839599A1 Method and apparatus for controlling the constitution of the atmosphere of an enclosure |
| 05/06/1998 | CN1181114A Sprocket and manufacturing method thereof |
| 05/06/1998 | CN1180753A Tempering method |
| 05/05/1998 | US5746845 Method for manufacturing high-strength member of precipitation hardening martensitic stainless steel |
| 05/05/1998 | US5746841 Process for passivating treatment of piping system for high-purity gas |
| 04/30/1998 | DE19716554C1 Method for producing an assembled camshaft |
| 04/28/1998 | US5744773 Resistance heating process and apparatus |
| 04/28/1998 | CA2110965C Method of and apparatus for high-frequency heating |
| 04/28/1998 | CA2067043C High strength cold rolled steel sheet having excellent non-aging property at room temperature and suitable for drawing and method of producing the same |
| 04/22/1998 | EP0837146A2 Steel member surface heat treatment method |
| 04/22/1998 | EP0836905A1 Method and arrangement for surface treatment with temperature control, particularly for superficial hardening with laser radiation |
| 04/22/1998 | CN2279364Y Metal surface heat-treating facility |
| 04/21/1998 | US5741377 Preparing biaxially textured metal alloy article; superconductors |
| 04/21/1998 | CA2093812C Fluidized bed apparatus and method using same |
| 04/16/1998 | DE19746733A1 Regulation of inert gas supplied to an annealing furnace |
| 04/15/1998 | EP0835329A1 Hi-density sintered alloy and spheroidization method for pre-alloyed powders |
| 04/15/1998 | EP0739426B1 Workpiece quenching process and device |
| 04/15/1998 | EP0612276B1 Heat treatment of metal castings and in-furnace sand reclamation |
| 04/15/1998 | CN2278695Y Flexible connection on-and-off devcie in metal heat treatment equipment |
| 04/14/1998 | US5739086 Structures having enhanced biaxial texture and method of fabricating same |
| 04/14/1998 | US5738162 Terraced fluidized bed |
| 04/14/1998 | US5737975 Built-up camshaft having induction-hardened cams and method of inductively hardening the cams |
| 04/09/1998 | WO1998014710A1 Bearing having micropores, and design method thereof |
| 04/09/1998 | WO1998014291A1 Sand core removal and casting heat treatment |
| 04/09/1998 | CA2266102A1 Bearing having micropores, and design method thereof |
| 04/08/1998 | EP0833951A1 Method of making a heat treated steel casting and a heat treated steel casting |
| 04/08/1998 | CN1178249A Heat treating method for ensembled large size spherical tank |
| 04/07/1998 | US5735970 Apparatus and process for the production of a neutral atmosphere |
| 04/07/1998 | US5735163 Press working method including step of strengthening local portion of blank |
| 04/02/1998 | DE19711232C1 Treatment of bore surfaces in workpieces |
| 04/01/1998 | CN1177648A PC concrete iron and method for producing same |
| 03/31/1998 | US5733391 Quenching method |
| 03/31/1998 | US5733116 Heat treatment apparatus |
| 03/26/1998 | WO1998012900A1 Device for rotating and simultaneous hardening by electric induction |
| 03/26/1998 | DE19652836C1 Producing workpiece with rotationally symmetric hardened surface region |
| 03/26/1998 | DE19638596A1 Protecting grey cast iron cylinder liner surface from cavitation |
| 03/25/1998 | EP0830939A1 Tempering method |
| 03/25/1998 | EP0830218A1 Structures having enhanced biaxial texture and method of fabricating same |
| 03/25/1998 | EP0771226B1 Process for producing a ski edge |
| 03/24/1998 | US5731567 Thermal working method of metal material containing helium and thermal working apparatus therefor |
| 03/24/1998 | US5731046 Fabrication of diamond and diamond-like carbon coatings |
| 03/24/1998 | US5730930 Method and device for exchanging the atmosphere in a hood-shaped annealing furnace |
| 03/24/1998 | US5730813 Process for annealing an annealing charge and suitable annealing furnace |
| 03/24/1998 | US5730810 Alloy containing rare earth elements |
| 03/19/1998 | WO1998011761A1 Induction heaters to improve transitions in continuous heating systems, and method |
| 03/19/1998 | WO1998011262A1 Wear-resistant camshaft and method of producing the same |
| 03/19/1998 | WO1998011261A1 Method and apparatus for heat treating and straightening structural members |
| 03/19/1998 | WO1998011183A1 Process for removing fine iron containing particles from liquids containing the same |
| 03/19/1998 | DE19637916A1 Process and equipment for cooling a hot rolled strand |
| 03/19/1998 | CA2265562A1 Induction heaters to improve transitions in continuous heating systems, and method |
| 03/18/1998 | EP0829554A1 Low pressure cementation apparatus with compartments disposed one behind the other |
| 03/18/1998 | EP0829548A2 Model supported process for controlled cooling of hot rolled strip or thick plate in a computer controlled rolling and cooling process |
| 03/18/1998 | EP0829315A1 Device for water cooling rolled sections |
| 03/18/1998 | EP0828862A1 Martensitic stainless steel having high mechanical strength and corrosion resistance and relative manufactured articles |
| 03/18/1998 | CN2276505Y Calorization annealing pot |
| 03/18/1998 | CN1176668A Primary cooling method in continuously annealing steel strip |
| 03/18/1998 | CN1176667A Continuously annealed soft temper blackplates for drawn and ironed cans and deep drawn vessels, and manufacturing method therefor |
| 03/17/1998 | US5728354 Process and plant for generating nitrogen for heat treatment |
| 03/12/1998 | WO1998010111A1 Casting material for thixocasting, method for preparing partially solidified casting material for thixocasting, thixo-casting method, iron-base cast, and method for heat-treating iron-base cast |
| 03/12/1998 | DE19636216A1 Induction heating especially hardening or soldering device |
| 03/12/1998 | DE19636049A1 Annealed workpiece quenching |
| 03/11/1998 | CN1175980A Improvements in and relating to cartide-free bainitic steels and method of producing such steels |
| 03/10/1998 | US5725682 Brazing method |
| 03/05/1998 | WO1998008988A1 Revolving furnace for the treatment of work pieces |
| 03/05/1998 | DE19632195C1 Verfahren zur Herstellung von Gußstücken Process for the preparation of castings |
| 03/04/1998 | EP0826783A2 Curved disc and method for manufacturing thereof |
| 03/04/1998 | EP0625586B1 Structural member and process for producing the same |
| 03/04/1998 | EP0542951B1 Process for tempering a rail vehicle wheel |
| 03/03/1998 | US5722825 Device for heat-treating metallic work pieces in a vacuum |
| 03/03/1998 | US5722772 Quench cooling effectiveness apparatus for continous monitoring |
| 02/25/1998 | EP0825266A1 Process for reducing the opening value obtained in the web saw cut test of steel rails |
| 02/25/1998 | CN1174241A Method and apparatus for heat treatment including H2/H2O furnace region control |
| 02/24/1998 | US5720300 High performance wires for use in medical devices and alloys therefor |
| 02/22/1998 | CA2213888A1 Method of reducing the gaping values in the web saw cut test on steel railway tracks |
| 02/19/1998 | WO1998006770A1 A water miscible thermal quenching agent |
| 02/19/1998 | WO1998006524A1 Method of producing castings |
| 02/19/1998 | DE19734901A1 Konstruktionsstahl und unter hohem Oberflächendruck verwendete Stahlbauteile Structural steel and steel components used under high surface pressure |
| 02/18/1998 | CN1173549A Parts of loom and loom using the same |
| 02/18/1998 | CN1173544A Press-formed article and method for strengthening the same |
| 02/17/1998 | US5719369 Stress corrosion crack repair by plasma arc welding underwater welding |
| 02/17/1998 | US5718774 Method of producing bevel gear |
| 02/11/1998 | CN1172858A Method of cooling steel sections which are hot from rolling |
| 02/10/1998 | US5717186 Method and device for controlling the electric current density across a workpiece during heat treatment in a plasma |
| 02/10/1998 | US5716468 Process for producing high-and low-pressure integral-type turbine rotor |
| 02/10/1998 | US5716465 For gas wells; hot rolling, hardening, tempering, cold rolling |
| 02/05/1998 | DE19724661A1 Fabrication method for toothed transmission parts |
| 02/04/1998 | EP0822027A1 Method of hardening the surface of a workpiece using a beam, particularly a laser beam and device for executing this method |
| 02/04/1998 | EP0616647B1 Heavy-duty solid wheels and tyres for rail locomotives and trucks |
| 02/03/1998 | US5714020 Successively or simultaneously preheating each cross-section of rail, overheating part corresponding to head, cooling |
| 02/03/1998 | CA2111497C Integrated process for producing atmospheres suitable for heat treating from non-cryogenically generated nitrogen |
| 01/29/1998 | WO1998004101A1 System, apparatus and method for heating metal products in an oscillating induction furnace |
| 01/29/1998 | DE19617593A1 Hollow camshaft produced out of a length of pipe |
| 01/29/1998 | CA2260783A1 System, apparatus and method for heating metal products in an oscillating induction furnace |
| 01/28/1998 | CN1171823A Process for producing directional electrical sheet excellent in glass coating and magnetic properties |
| 01/28/1998 | CN1171538A Annealing base for hood-type annealing furnaces |
| 01/28/1998 | CN1171448A Constant current needle annealing |
| 01/28/1998 | CN1171447A Method for heating cold steel ingot with gland |