| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 08/06/1980 | EP0014158A1 Method for stress-relieving welded joints by explosive treatment |
| 08/06/1980 | EP0014140A1 Device for cooling a longitudinally moving elongated product |
| 08/05/1980 | CA1082955A1 Method and apparatus for improving the mechanical properties of butt welded tubular products |
| 08/05/1980 | CA1082950A1 Dual-phase hot-rolled steel strip |
| 07/29/1980 | US4214923 Method for treating metal |
| 07/29/1980 | US4214868 Method of and an apparatus for soaking steel pieces |
| 07/29/1980 | US4214866 Burner for high temperature combustion air |
| 07/29/1980 | US4214470 Method and apparatus for cooling drawn wire |
| 07/23/1980 | EP0013331A1 Method for making profiles and the use of a fine grained steel for profiles |
| 07/15/1980 | US4212690 Heat treat fixture and method of heat treating |
| 07/15/1980 | CA1081594A1 Steel member for reinforcing rubber composites and method of making same |
| 07/15/1980 | CA1081587A1 Method for producing an adhesive-coated high-strength steel reinforcing member |
| 07/09/1980 | EP0013230A1 Device for removing a fluid from the surface of a long and continuously moving product |
| 07/09/1980 | EP0012853A1 Device having the form of a basket for conveying bulk material through heat-treatment furnaces |
| 07/08/1980 | US4211088 Internal cooling of heat exchanger tubes |
| 07/08/1980 | CA1081328A1 Process for heating metal strips |
| 07/08/1980 | CA1081097A1 Method and apparatus for forming high tensile steel from low and medium carbon steel |
| 07/01/1980 | US4210469 Use of lathe turnings of cast iron or steel scraps to produce reducing furnace atmosphere |
| 07/01/1980 | US4210468 Carbon-containing steel bar stock, austenitic microstructure, martensite, temperature gradient |
| 07/01/1980 | US4210288 Cooling apparatus |
| 07/01/1980 | US4210097 Means for maintaining a non-oxidizing atmosphere at positive pressure within the metallic strip preparation furnace of a metallic coating line during line stops |
| 07/01/1980 | US4210086 Cover for soaking pits and the like |
| 07/01/1980 | CA1080591A1 Production of galvanised steel strip |
| 06/24/1980 | US4209366 Depositing a porous silicate, rinsing, annealing; formation of volatile carbon compound |
| 06/24/1980 | US4209345 Machine for treating metal sheets |
| 06/11/1980 | EP0012130A1 Apparatus for manufacturing of work pieces of fully hardenable material with areas of differing hardness, in particular flanged piston sleeves for fuel injection pumps |
| 06/10/1980 | US4207066 Retractable gantry heat treat furnace |
| 06/10/1980 | CA1079066A1 Apparatus for cooling metal sections |
| 06/10/1980 | CA1079064A1 Production of metal strip |
| 06/03/1980 | US4205829 Steel wire patenting equipment |
| 06/03/1980 | CA1078710A1 Method and apparatus for cooling hot rolled rod |
| 05/29/1980 | WO1980001083A1 Lower bainite alloy steel article and method of making same |
| 05/28/1980 | EP0011152A1 Thermal homogenization of steam generating tubing |
| 05/27/1980 | US4204892 Heat-treating tubular steel sections |
| 05/27/1980 | US4204885 Method for providing strong wire |
| 05/20/1980 | US4203579 Installation for tempering long cylindrical pieces in form and in thin layer |
| 05/13/1980 | US4202918 Method for obtaining bright finish galvanizing coating on wire |
| 05/13/1980 | US4202661 Jet implement radiation furnace, method and apparatus |
| 05/13/1980 | US4202537 Apparatus for annealing strip coils |
| 05/13/1980 | CA1077265A1 Hover furnaces |
| 05/06/1980 | US4201602 Heat treating |
| 05/06/1980 | CA1076848A1 As-rolled steel plate having improved low temperature toughness and production thereof |
| 04/30/1980 | EP0010334A2 Apparatus for the induction heating of bars |
| 04/29/1980 | US4200477 Processing for electromagnetic silicon steel |
| 04/29/1980 | US4200446 Gas hearth electrical heating supplement and method of operation |
| 04/29/1980 | CA1076463A1 Producing rolled steel products |
| 04/22/1980 | US4198994 Device for mounting rollers in a machine for treating metal sheets or the like |
| 04/16/1980 | EP0009563A1 Method for remelt hardening the surface of a workpiece rotating about its revolving axis, the surface being at a variable distance from the revolving axis |
| 04/02/1980 | EP0009050A1 High strength steel and process of making. |
| 04/01/1980 | US4195820 Precise thermal processing apparatus |
| 03/25/1980 | US4194728 Apparatus for the inductive hardening by quenching of bearing surfaces of a crankshaft |
| 03/25/1980 | CA1074216A1 Heat treating process for rod in fluidized bed |
| 03/20/1980 | WO1980000456A1 Process for producing high-strength cold-rolled steel plate for press working |
| 03/18/1980 | US4193824 Method for manufacturing steel spring leaves |
| 03/18/1980 | US4193823 Rolls for hot-rolling non-ferrous metals and method of making |
| 03/18/1980 | CA1073787A1 Method and apparatus for heating a workpiece |
| 03/11/1980 | US4192646 Heat conservation in workpieces |
| 03/05/1980 | EP0008423A1 Apparatus for the thermal treatment of an elongated metal sheet |
| 03/05/1980 | EP0008385A1 Grain-oriented electromagnetic steel sheet and method for its production |
| 03/04/1980 | US4191601 Heat treatment, aging |
| 03/04/1980 | US4191600 Immersing in an aqueous bath |
| 03/04/1980 | CA1072865A1 Cold rolled, ductile, high strength steel strip and method therefor |
| 03/04/1980 | CA1072864A1 Combined mechanical and thermal processing method for production of seamless steel pipe |
| 03/04/1980 | CA1072823A1 Jet impingement radiation furnace, method and apparatus |
| 02/26/1980 | US4190469 Applying water slurry containing calcium oxide and magnesium oxide, adjusting water content relative to calcium oxide content, drying, coiling, annealing |
| 02/26/1980 | US4190468 Process for coating an electrical steel sheet with an anti-sticking layer |
| 02/26/1980 | CA1072424A1 Continuous heat treatment of steel strip |
| 02/20/1980 | EP0007988A1 An apparatus for dumping heat treatment material contained in a batch container |
| 02/20/1980 | EP0007925A1 Plant for the thermal treatment at elevated temperature of objects to be treated as they pass |
| 02/19/1980 | US4189333 Welded alloy casing |
| 02/19/1980 | CA1071901A1 Aluminum iron cobalt silicon alloy and method of preparation thereof |
| 02/12/1980 | US4188419 Method for preventing cracks below seams during plating and welding |
| 02/12/1980 | US4188243 Conveying at a steady speed |
| 02/12/1980 | US4188241 Method for producing high tensile strength, high ductility, low yield ratio hot rolled steel sheet |
| 02/12/1980 | CA1071716A1 Welding of glassy metallic materials |
| 02/05/1980 | CA1071071A1 Method and apparatus for the production of wire springs |
| 01/29/1980 | US4186039 Method of stabilizing springs |
| 01/29/1980 | US4186037 Thermal treatment of intermediate quenching and quick tempering through eddy currents and a device for applying said treatment to high productivity rolling plants for flat products |
| 01/29/1980 | US4185810 Device for cooling long items of material which have been heated |
| 01/29/1980 | US4185649 Arrangement of the input and output ends of a metal sheet cooling machine |
| 01/29/1980 | US4185648 Machine for treating sheets of variable width |
| 01/24/1980 | WO1980000086A1 Process and device for manufacturing hardened surfaces by second fusion of a part comprising variable radius of curvature,in particular of cames of a came shaft in internal combustion machines |
| 01/22/1980 | US4185183 Induction heating apparatus with adjustable flux concentrators |
| 01/22/1980 | US4185160 Electric slot furnace |
| 01/22/1980 | US4184839 Roller track for pipes |
| 01/22/1980 | US4184798 Workpiece rotating and feeding apparatus |
| 01/22/1980 | CA1070224A1 Method and apparatus for induction hardening gear teeth |
| 01/15/1980 | US4183983 Method for reducing metal oxide formation on a continuous metal sheet in the hot dip coating thereof |
| 01/15/1980 | US4183773 Continuous annealing process for strip coils |
| 01/15/1980 | US4183305 Furnace seal |
| 01/09/1980 | EP0006841A2 Apparatus for the continuous heat treatment of metal products |
| 01/08/1980 | US4182635 Method of heat treatment of ductile metal strip |
| 01/08/1980 | US4182146 Hot rolling mill |
| 01/08/1980 | CA1069418A1 Method and apparatus for flame hardening the inner wall surface of tube bends |
| 01/08/1980 | CA1069417A1 Process for the continuous hardening of tubes |
| 01/08/1980 | CA1069416A1 Method and equipment for heat treatment of large tubes |
| 01/08/1980 | CA1069415A1 Processing for aluminum nitride inhibited oriented silicon steel |
| 01/08/1980 | CA1069296A1 Apparatus for gas treatment of articles traversing an enclosure |
| 01/01/1980 | US4181845 Apparatus for tempering the weld between a tool joint connector and a drill pipe tube |
| 12/25/1979 | US4180421 Torsion bar and method of forming the same |