| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 07/30/1985 | CA1191077A1 Interrupted quench process |
| 07/23/1985 | US4531036 Apparatus and method for inductively hardening small bores |
| 07/23/1985 | CA1190836A1 Fused salt bath composition |
| 07/18/1985 | WO1985003087A1 Coffin delivery system for metallurgical furnace |
| 07/16/1985 | US4529177 Transformer core mandrel |
| 07/16/1985 | CA1190457A2 Method of heat treating metal |
| 07/16/1985 | CA1190395A1 Industrial oven with air recirculation of heat treatment processes |
| 07/10/1985 | EP0147845A2 Method af gas carburizing and herdening and continuous furnace therefor |
| 07/10/1985 | EP0147659A2 Method for manufacturing grain-oriented silicon steel sheet |
| 07/10/1985 | EP0147422A1 Tough, wear- and abrasion-resistant, high chromium hypereutectic white iron |
| 07/09/1985 | US4528481 Treatment of amorphous magnetic alloys to produce a wide range of magnetic properties |
| 07/09/1985 | US4528436 High reliability double-chambered shielding system for welding |
| 07/09/1985 | US4528208 Method and apparatus for controlling article temperature during treatment in vacuum |
| 07/09/1985 | US4528044 Aqueous quenchants containing polyoxazolines and n-vinyl heterocyclic polymers and their use in quenching steel |
| 07/09/1985 | CA1190127A1 Quenching method and apparatus for steel pipes |
| 07/03/1985 | EP0147190A1 Method and apparatus for laser gear hardening |
| 07/02/1985 | US4526628 Method of manufacturing a car stabilizer |
| 07/02/1985 | US4526627 Passing spiral coil of hot rolled steel through vessel containing coolant of gas bubble-water fluid |
| 07/02/1985 | CA1189771A1 Carburizing process utilizing atmosphere generated from nitrogen ethanol based mixtures |
| 06/25/1985 | US4524957 Apparatus for metal treatment |
| 06/19/1985 | EP0144907A2 Method of producing austempered spheroidal graphite cast iron body |
| 06/19/1985 | EP0144817A2 Process for manufacturing wear-resistant running faces of combustion-engine cylinders |
| 06/18/1985 | US4523965 Austenitizing, quenching to produce a mixture of tempered and untempered martensite |
| 06/18/1985 | US4523748 Very high pressure apparatus for quenching |
| 06/18/1985 | CA1188963A1 Method for producing steels having improved resistance to sulfide stress corrosion cracking |
| 06/11/1985 | CA1188605A1 Continuous annealing process of producing cold rolled mild steel sheet excellent in deep drawability and aging resistibility |
| 06/05/1985 | EP0143133A1 Cooling heated metal surfaces |
| 06/04/1985 | US4520789 Supports for heating bodies intended for annealing furnaces |
| 05/28/1985 | US4519854 Heating, brazing, cooling |
| 05/28/1985 | US4519852 Annealing of high speed steel powder |
| 05/28/1985 | CA1187694A1 Lift-off means and method for use with a horizontal continuous hearth roll furnace for the treatment of metallic strip |
| 05/22/1985 | EP0141885A1 Skid rail |
| 05/21/1985 | US4518352 Industrial oven with air recirculation for heat treating processes |
| 05/15/1985 | EP0141761A2 Differential quenching process for reducing the deformation of flat metal products |
| 05/15/1985 | EP0141036A2 Device for the production of a laminar water curtain |
| 05/14/1985 | CA1187142A1 Method for inductively heating valve seat inserts |
| 05/08/1985 | EP0140027A1 Aqueous solution for cooling cold-rolled steel strip in a continuous annealing process |
| 05/08/1985 | EP0140026A2 Device for cooling rolled metallic products |
| 05/07/1985 | US4515645 Spraying exit end with liquid nitrogen |
| 05/07/1985 | CA1186609A1 Insulation for a furnace member |
| 04/30/1985 | US4513977 Steel floating seal with remelted deposit-alloyed wear surfaces |
| 04/25/1985 | WO1985001677A1 Method and apparatus for controlling the temperature of an article during treatment in vacuum |
| 04/23/1985 | US4512823 Barium or chromium additives to magnesium oxide coating slurry |
| 04/23/1985 | US4512821 Method for metal treatment using a fluidized bed |
| 04/23/1985 | US4512558 Coffin delivery system for metallurgical furnace |
| 04/23/1985 | CA1186021A1 Method and apparatus for surface hardening cams |
| 04/17/1985 | EP0137747A2 Improvements in or relating to the production of grain oriented steel |
| 04/16/1985 | US4511089 Nozzle header for cooling plates |
| 04/09/1985 | US4509995 Method and apparatus for quenching |
| 04/02/1985 | US4508960 Light-radiant furnace |
| 03/26/1985 | US4507538 Laser hardening with selective shielding |
| 03/19/1985 | US4505764 Temporary alloying with hydrogen |
| 03/19/1985 | US4505763 Heat-treating method of weld portion of piping system and heating coil for the heat treatment |
| 03/19/1985 | CA1184099A1 Method of heat treating metal |
| 03/13/1985 | EP0133877A2 Charging and discharging device for furnaces, particularly for tunnel furnaces with trucks and rotary furnaces |
| 03/12/1985 | US4504527 Method for the insulation of heated metalic materials |
| 03/12/1985 | US4504042 Apparatus for heat treating steel |
| 03/05/1985 | US4502897 Method for producing hot-rolled steel sheets having a low yield ratio and a high tensile strength due to dual phase structure |
| 03/05/1985 | US4502671 Batch annealing apparatus |
| 03/05/1985 | US4502669 Inside-outside tube quenching apparatus |
| 03/05/1985 | CA1183431A1 High strength hot rolled steel sheet having excellent flash butt weldability, fatigue characteristic and formability |
| 03/05/1985 | CA1183348A1 Apparatus for preheating the ends of upset steel pipes |
| 02/27/1985 | EP0133613A1 Method of cooling charges in industrial discontinuously working furnaces, especially steel wire or strip coils in bell-type furnaces |
| 02/26/1985 | US4501942 Method and apparatus for uniform induction heating of an elongated workpiece |
| 02/26/1985 | CA1182999A1 Power feeding process of furnaces intended for heating metallurgical products |
| 02/19/1985 | US4500366 High speed multistage recrystallization annealing |
| 02/14/1985 | WO1985000622A1 Improvement in method and apparatus for heat treating |
| 02/13/1985 | EP0132980A2 Induction hardening of gear teeth |
| 02/12/1985 | CA1182387A1 Method for producing high-strength deep drawable dual phase steel sheets |
| 01/29/1985 | US4496401 Nitriding non alloy steels forming oxide cayer, qufnching, and waxing |
| 01/29/1985 | US4496399 Comprising organic resin and aluminum oxide, magnesium oxide, and phosphoric acid |
| 01/29/1985 | US4496312 Heat-treatment system and process |
| 01/22/1985 | US4495009 Method of cooling cold steel strip with cooling rolls |
| 01/22/1985 | US4495004 Preheating the charge and transferring to an in situ-combustion chamber |
| 01/16/1985 | EP0131507A2 Method of manufacturing a prestressing anchoring by pulling a steel sleeve over a metal body |
| 01/15/1985 | US4493977 Method for heating semiconductor wafers by a light-radiant heating furnace |
| 01/09/1985 | EP0130749A1 Method and apparatus for laser hardening of workpieces |
| 01/09/1985 | EP0130695A2 Method for annealing a core blank used in electric machinery and devices |
| 01/09/1985 | EP0130674A2 Process for producing cube-on-edge oriented electromagnetic silicon steel |
| 01/09/1985 | EP0130320A1 Method and apparatus for measuring the quenching intensity of liquid quenching baths |
| 01/08/1985 | CA1180769A1 Method of uniform induction heating of an elongated workpiece |
| 01/08/1985 | CA1180551A1 Apparatus for cooling the moving surface of a solid |
| 01/02/1985 | EP0129701A1 Oven device for cooling a workload, especially of metallic workpieces |
| 12/25/1984 | US4490187 Vaporization of cooling medium |
| 12/25/1984 | US4490108 Process for reducing the oxygen content of the atmosphere in a heat treatment furnace and heat treatment furnace for carrying out this process |
| 12/18/1984 | US4488710 Apparatus for optimizing the cooling of a generally circular cross-sectional longitudinal shaped workpiece |
| 12/11/1984 | US4487398 Salt bath quenching apparatus |
| 12/06/1984 | WO1984004760A1 Tough, wear- and abrasion-resistant, high chromium hypereutectic white iron |
| 12/05/1984 | EP0127333A1 Method for reducing the volume of atmosphere needed to inhibit ingress of ambient oxygen into the furnace chamber of a continuous heat treatment furnace |
| 12/04/1984 | US4486249 Method of making class D sucker rods |
| 12/04/1984 | US4486248 Pearlite microstructure |
| 12/04/1984 | US4486246 Polyoxazolines in aqueous quenchants |
| 12/04/1984 | US4486243 Multistage, controlled cooling after hot rolling |
| 12/04/1984 | US4486240 Of metals with concedntrated electron beam |
| 12/04/1984 | US4486009 Apparatus for cooling sheet metal panels |
| 11/28/1984 | EP0126689A1 Charging device for iron and steel industry articles in a reheating or heat treatment furnace |
| 11/28/1984 | EP0126481A2 Method and apparatus for direct heat treatment of medium- to high-carbon steel rods |
| 11/27/1984 | CA1178517A1 Ferrous materials |
| 11/22/1984 | WO1984004545A1 Polyoxazolines in aqueous quenchants |
| 11/14/1984 | EP0124574A1 Method and apparatus for the manufacture of non-allergy creating precious metal objects. |