| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 11/14/1984 | EP0124571A1 Method and apparatus for suppressing unstable internal residual strains by means of vibrations |
| 11/13/1984 | US4482793 Apparatus for simultaneously heating a plurality of elongated workpieces |
| 11/13/1984 | US4482401 Method for producing cube-on-edge oriented silicon steel |
| 11/13/1984 | US4482005 Process for treating materials to improve their structural characteristics |
| 11/13/1984 | CA1177903A1 Method and apparatus for inductively heating valve seat inserts |
| 11/07/1984 | EP0124501A1 Method of improving the quality of steel sections |
| 11/06/1984 | US4481398 Multi-directional oscillating breakoff mechanism for separating billets |
| 11/06/1984 | CA1177370A1 Manufacture of rolled steel easy to weld, highly stretch resistant and very bendable in the cold state |
| 11/06/1984 | CA1177369A1 Process for the improved heat treatment of steels using direct electrical resistance heating |
| 10/24/1984 | EP0122434A2 Furnace for the partial heat treatment of tools |
| 10/23/1984 | US4478573 Furnace for heating pipes with upset portions |
| 10/23/1984 | CA1176546A1 Inhibited annealing of ferrous metals containing chromium |
| 10/16/1984 | US4477708 Apparatus for preheating the ends of upset steel pipes |
| 10/16/1984 | US4476824 A ledeburitic-martensitic structure |
| 10/16/1984 | CA1176144A1 Method and apparatus for quenching heated workpieces |
| 10/16/1984 | CA1176009A1 High strength, low alloy steel with improved surface and mechanical properties |
| 10/09/1984 | US4475962 Annealing method for amorphous magnetic alloy |
| 10/09/1984 | CA1175915A1 Method and apparatus for induction heating a metallic elongated material having different thickness sections |
| 10/09/1984 | CA1175685A1 Method of manufacturing an amorphous magnetic alloy |
| 10/09/1984 | CA1175650A1 Multi-pipe type quenching apparatus |
| 10/03/1984 | EP0120233A2 Process for heat recovery during the heat treatment of metallic articles, and tunnel furnace therefor |
| 09/26/1984 | EP0119714A2 Cutting and piercing devices |
| 09/25/1984 | US4473412 Annealing steel strip using molten B2 O3, SiO2 Na2 O, NaF glass bath |
| 09/19/1984 | EP0119186A2 Method of manufacturing turbine blades |
| 09/19/1984 | EP0119182A1 Method of improving the surface properties of rolls |
| 09/19/1984 | EP0118836A2 A method of cooling a heated workpiece |
| 09/18/1984 | US4472208 Hot-rolled high tensile titanium steel plates and production thereof |
| 09/18/1984 | US4471628 Mixing silica gel particles with nitrogen |
| 09/18/1984 | CA1174532A1 Apparatus and method for supporting a metal strip under a static gas pressure |
| 09/18/1984 | CA1174461A1 Method for removing carbonaceous deposits from heat treating furnaces |
| 09/18/1984 | CA1174460A1 Continuous gold rolling and annealing apparatus for steel strip |
| 09/12/1984 | EP0118380A2 Microstructural refinement of cast metal |
| 09/11/1984 | US4470854 Surface hardening thermal treatment |
| 09/04/1984 | US4469314 Metal heating furnace |
| 08/28/1984 | US4468010 Method and apparatus for quench hardening thin-walled, elongated workpieces |
| 08/22/1984 | EP0116359A2 Rail wheel |
| 08/21/1984 | US4467169 Cylinder liner |
| 08/21/1984 | US4466574 Cooling apparatus |
| 08/14/1984 | US4465523 Immersion in oil containing additive |
| 08/08/1984 | EP0115092A2 Structural element with a high corrosion and oxidation resistance made from a dispersion-hardened superalloy, and process for its manufacture |
| 08/08/1984 | EP0044853B1 Device for sealing a fluidized bed |
| 08/07/1984 | US4463864 Basket for retaining parts during heat treatment |
| 07/31/1984 | US4462792 Reheating metal bodies with recovered blast-furnace energy |
| 07/31/1984 | US4462577 Apparatus for gas cooling work parts under high pressure in a continuous heat treating vacuum furnace |
| 07/31/1984 | US4462533 Method of reconditioning welded joints |
| 07/31/1984 | CA1171914A1 Method and apparatus for heat treating structural members |
| 07/24/1984 | US4461656 Nitrocarburizing |
| 07/24/1984 | US4461655 Fused salt bath composition |
| 07/24/1984 | US4461462 Apparatus for cooling steel pipe |
| 07/18/1984 | EP0113500A2 Process for manufacturing metal articles and for removing oxide scale therefrom |
| 07/18/1984 | EP0020357B1 Lower bainite alloy steel article |
| 07/11/1984 | EP0113157A1 Quench oils, concentrates for making quench oils and methods of treating metals |
| 07/10/1984 | US4459458 Machine tool with laser heat treating |
| 07/10/1984 | US4459451 Induction hardening apparatus and process for the use thereof |
| 07/10/1984 | US4458885 Quenching apparatus for steel pipes |
| 07/10/1984 | CA1170767A1 Method of controlling a reheat furnace to control skid mark effects |
| 07/10/1984 | CA1170448A1 Pusher-type furnace |
| 07/03/1984 | US4458127 Inductor for annealing work hardened portions of structural beams |
| 07/03/1984 | US4457789 Process for annealing steels |
| 07/03/1984 | US4457788 Particulate medium for fluidized bed operations |
| 07/03/1984 | US4457493 Gas atmosphere heating furnace |
| 06/27/1984 | EP0111985A2 Process for cooling thin metal strips |
| 06/19/1984 | US4455352 Materials system for high strength corrosion resistant bimetallic products |
| 06/19/1984 | US4455177 Method and apparatus for chemical heat treatment of steel parts utilizing a continuous electric furnace |
| 06/19/1984 | CA1169338A1 Method of cooling steel pipes |
| 06/12/1984 | US4453986 Tubular high strength low alloy steel for oil and gas wells |
| 06/12/1984 | CA1168860A1 Insulative coatings for electrical steels |
| 05/30/1984 | EP0109843A1 Resistance heater probe |
| 05/29/1984 | US4450608 Apparatus for producing tempered plate parts |
| 05/24/1984 | WO1984001962A1 Method and apparatus for suppressing unstable internal residual strains by means of vibrations |
| 05/22/1984 | US4450017 Treatment of thin sheet steel used for electrical motors and transformers |
| 05/22/1984 | CA1167614A1 Homogeneous, ductile cobalt based hardfacing foils |
| 05/22/1984 | CA1167613A1 Homogeneous, ductile nickel based hardfacing foils |
| 05/16/1984 | EP0108436A1 Rail making process and rails so produced |
| 05/16/1984 | EP0108357A1 Batch annealing apparatus |
| 05/15/1984 | US4448616 Use of gas jet to control gas flow |
| 05/15/1984 | US4448613 Heating, cooling, deforming and soaking |
| 05/15/1984 | CA1167209A1 Homogeneous, ductile iron based hardfacing foils |
| 05/10/1984 | WO1984001788A1 Method and apparatus for the manufacture of non-allergy creating precious metal objects |
| 05/09/1984 | EP0108047A1 Pusher-type oven |
| 05/09/1984 | EP0107991A1 Apparatus and method for the adjustment of the heating capacity of a heating plant for continuously moving metallic strip |
| 05/08/1984 | US4447690 Inductive preheating of upset tubing |
| 05/08/1984 | US4447275 Cylinder liner |
| 05/08/1984 | CA1166804A1 Stable slurry of inactive magnesia and method therefor |
| 05/02/1984 | EP0107237A1 Method for the automatic control of the structure of rolled steel products |
| 05/02/1984 | EP0106989A1 Basket for holding parts on a base during their heat treatment |
| 05/02/1984 | EP0106961A1 Method of producing a gas atmosphere for annealing metallic work pieces |
| 05/01/1984 | US4445945 Carbon monoxide, hydrogen, nitrogen from methanol |
| 04/26/1984 | WO1984001586A1 Process and installation for the treatment of cylindrical products, particularly armouring bars by hardening and drawing temper |
| 04/25/1984 | EP0106421A1 Method and apparatus for uniform induction heating of an elongated workpiece |
| 04/25/1984 | EP0106166A1 Method and apparatus for the continuous annealing of steel strips |
| 04/25/1984 | EP0106113A1 Process and apparatus for the bright annealing of metallic parts using nitrogen as the protective atmosphere |
| 04/25/1984 | EP0106077A1 Process and apparatus for quenching iron and steel articles in a liquid |
| 04/24/1984 | US4444556 Cooling apparatus |
| 04/24/1984 | US4444554 Heating method and apparatus |
| 04/24/1984 | US4444376 Multi-pipe type quenching apparatus |
| 04/24/1984 | CA1165971A1 Device for spraying cooling agent on steel blooms |
| 04/18/1984 | EP0105302A1 Improved supports of heating bodies intended to annealing furnaces. |
| 04/10/1984 | US4442331 Method and apparatus of induction heating a metallic elongated material having different thickness sections |
| 04/10/1984 | US4441937 Quenching bath and quenching method for metals |