| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 08/13/1986 | EP0190312A1 Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes |
| 08/06/1986 | EP0189855A2 Apparatus for evenly directing a gas towards a flat surface |
| 08/06/1986 | EP0189759A1 Method and apparatus for heat treating work pieces |
| 08/06/1986 | CN85102315A Electromotive heating car for heat-treatment |
| 08/06/1986 | CN85100190A Heat treatment process and equipment for forming spring steel wire |
| 08/05/1986 | US4604056 Vacuum furnace system hearth |
| 08/05/1986 | US4604055 Lip-hung retort furnace |
| 07/30/1986 | EP0105302B1 Improved supports of heating bodies intended to annealing furnaces |
| 07/29/1986 | US4602969 Method for annealing a core blank used in electric machinery and devices |
| 07/29/1986 | US4602769 Apparatus for the cooling of articles which have been subjected to an isostatic pressing process |
| 07/29/1986 | US4602767 Thermocouple apparatus for in situ annealing of a pressure vessel |
| 07/22/1986 | US4601659 Skid rail |
| 07/22/1986 | CA1208108A1 Metal quenching process |
| 07/22/1986 | CA1208107A1 Method and apparatus for metal treatment |
| 07/15/1986 | US4600378 Steel strip heating furnace and method |
| 07/15/1986 | CA1207641A1 Recovery and recycle of nitrate and nitrite salts from chloride containing quench bath solids |
| 07/09/1986 | CN85107934A Process for heat treatment of metallic pieces by continuous furnace and apparatus thereof |
| 07/08/1986 | US4599502 Induction hardening of steel |
| 07/08/1986 | EP0151165A4 Improvement in method and apparatus for heat treating. |
| 07/03/1986 | WO1986003859A1 Method for the compensation of the initial adjustment of members subjected to mechanical wear |
| 07/02/1986 | EP0186512A2 Method for controlling solidification segregation of steel |
| 07/02/1986 | CA1206853A Method and apparatus for treating metals |
| 06/24/1986 | US4596615 Method of cooling hot steel plates |
| 06/24/1986 | US4596612 Immersing in bath of aqueous metal quenching fluid comprising a glycol and an inhibitor |
| 06/24/1986 | US4596611 Heat treatment in nitriding gaseous atmosphere, cooling, surface finishing, oxidizing |
| 06/24/1986 | US4596610 Multistage heat treatment in heat treatment box by diffusion in gaseous atmosphere |
| 06/24/1986 | US4596526 Batch coil annealing furnace and method |
| 06/19/1986 | WO1986003646A1 Inductor for heating railroad railheads |
| 06/19/1986 | WO1986003435A1 Method of correcting warping of two-layer clad metal plate |
| 06/18/1986 | CN85203768U Salf-bath furnace with double electrodes and its self-excited starting, continuously temperature-adjusting unit |
| 06/17/1986 | US4595425 Corrosion inhibiting quenchant compositions |
| 06/17/1986 | CA1206075A1 Inductor and method for annealing work hardened portions of structural beams |
| 06/10/1986 | CA1205730A1 Method and apparatus for sequentially quenching steel pipes |
| 06/10/1986 | CA1205729A1 Process for heat-treating rails |
| 06/03/1986 | US4592788 Method for pressurized water quenching of rolled steel products |
| 06/03/1986 | US4592537 Apparatus for heat treating and sizing thin walled articles |
| 05/27/1986 | US4591132 Apparatus for controlling the gas carburization of steel |
| 05/27/1986 | US4591044 Apparatus for feeding wafers and the like |
| 05/27/1986 | CA1204952A1 Treatment of amorphous magnetic alloys |
| 05/21/1986 | EP0181740A2 Heat retaining means |
| 05/21/1986 | EP0181653A1 Improvement relating to fluidized bed apparatus |
| 05/20/1986 | US4590346 Method of heating piping arrangement and heating coil |
| 05/20/1986 | US4589935 Uniform heating, quick cooling |
| 05/20/1986 | US4589934 Quench hardening |
| 05/20/1986 | US4589933 With continous curtain of recycled water |
| 05/14/1986 | EP0180953A2 Method and device for producing a protective atmosphere |
| 05/13/1986 | US4588869 Method for relieving residual stresses by controlling weld heat input |
| 05/13/1986 | US4588453 Method of manufacturing grain-oriented silicon steel sheets |
| 05/13/1986 | CA1204305A1 Titanium and vanadium-phase steel and method of manufacture |
| 04/30/1986 | EP0179545A1 Aqueous quenchants containing polyoxazolines and N-vinyl heterocyclic polymers |
| 04/29/1986 | US4585917 Method for relieving residual stresses by build-up welding over outer surface of pipe |
| 04/24/1986 | WO1986002384A1 Method for the continuous tempering of sheet metal such as steel and plant for implementing it |
| 04/23/1986 | EP0178378A2 Method of controlling cooling of hot-rolled steel sheet and system therefor |
| 04/23/1986 | EP0178354A1 Quench oils, quench oil concentrates, method of heat treating a ferro-metal and articles made therefrom |
| 04/22/1986 | US4584033 Immersion in modified polyether |
| 04/22/1986 | US4583720 Apparatus for the zone-annealing of a workpiece consisting of a high-temperature material |
| 04/22/1986 | CA1203459A1 Method and apparatus for heat treating steel |
| 04/16/1986 | EP0178281A2 Cooling apparatus for moving metallic products |
| 04/15/1986 | US4582547 Adding an inert, high temperature separator agent |
| 04/15/1986 | US4582546 Method of pretreating cold rolled sheet to minimize annealing stickers |
| 04/15/1986 | US4582301 Pass-through furnace for heat recovery in the heat treatment of aggregates of metallic articles or parts |
| 04/08/1986 | US4581512 Method and apparatus for cooling induction heated material |
| 04/08/1986 | US4581079 Hardenability and rolling resistance |
| 04/02/1986 | EP0176494A1 Method for cooling a moving metallic product |
| 04/01/1986 | US4579523 Method of operating a controlled atmosphere furnace |
| 04/01/1986 | US4579319 Combined sintering-annealing furnace |
| 04/01/1986 | CA1202578A1 Method of prestressing a tubular apparatus |
| 03/26/1986 | EP0175430A2 Apparatus for soaking steel pieces |
| 03/25/1986 | US4578124 High strength low carbon steels, steel articles thereof and method for manufacturing the steels |
| 03/25/1986 | US4578011 Device for charging steel products in a reheating or treatment furnace |
| 03/25/1986 | CA1202373A1 Machine tool with laser heat treating |
| 03/19/1986 | EP0174589A1 Apparatus for heating or cooling metal products |
| 03/18/1986 | US4577081 Heating nonmagnetic metal workpieces |
| 03/18/1986 | US4576658 Hor eollinf, awrrinf, xols eollinf, annealingf, decarbonization, crystallization |
| 03/18/1986 | CA1201961A1 Grinding rod and method for production thereof |
| 03/18/1986 | CA1201960A1 Method of manufacturing steel reinforcements for concrete, having improved properties |
| 03/13/1986 | WO1986001541A1 Shallow case hardening process |
| 03/11/1986 | US4575054 Apparatus for quenching steel pipes |
| 03/11/1986 | US4575052 Apparatus for continuously quenching a steel plate |
| 03/10/1986 | CN85103296A Catalized methyl alcohol cracking process and device for heat treatment |
| 03/10/1986 | CN85100648A Technology and equipment for heat treatment of high strength and toughness structural steel. |
| 03/05/1986 | EP0172944A1 Method and apparatus for heat-treating abrasives or the like |
| 03/04/1986 | US4573909 Billet heating furnace with adjustable pressurized entrance seal |
| 03/04/1986 | US4573667 Apparatus for quenching substantially flat workpieces |
| 03/04/1986 | US4573666 Apparatus for quenching butt-welded portion of rail |
| 03/04/1986 | US4573520 Apparatus for rapid tempering a metal or alloy on a moving belt |
| 03/04/1986 | CA1201488A1 Method and apparatus for uniform induction heating of an elongated workpiece |
| 03/04/1986 | CA1201289A1 Basket for retaining parts during heat treatment |
| 02/27/1986 | WO1986001231A1 Controlled rolling process for dual phase steels and application to rod, wire, sheet and other shapes |
| 02/26/1986 | EP0172544A2 Process for heat treating hot rolled steel rod or wire for prestressing concrete |
| 02/26/1986 | EP0172533A2 Method and apparatus for heating ingots suitable for rolling |
| 02/26/1986 | EP0172250A1 Apparatus for dip-hardening metal pipe |
| 02/25/1986 | US4572749 Method and an apparatus for heat treatment of a workpiece |
| 02/25/1986 | US4572748 Uniform mechanical properities by direct quenching |
| 02/25/1986 | CA1201045A1 Method of providing an anti-stick coating on non- oriented, semi-processed electrical steels to be subjected to a quality anneal |
| 02/18/1986 | US4571273 Process of heating and cooling charges in batch-process industrial furnaces |
| 02/18/1986 | US4570453 Apparatus for continuously cooling heated metal plate |
| 02/18/1986 | CA1200741A1 Method and apparatus for sectionwise heat treatment of component parts of ferrous materials |
| 02/12/1986 | EP0170728A2 Apparatus for gas pressure bonding, hot isostatic pressing or the like |
| 02/11/1986 | CA1200473A1 Method of manufacturing a low yield ratio high- strength steel sheet having good ductility and resistance to secondary cold-work embrittlement |