| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 02/16/1988 | US4725321 Method for cooling a steel strip in a continuous annealing furnace |
| 02/11/1988 | DE3627102A1 Protective casing for devices for the heat treatment of workpieces |
| 02/09/1988 | US4724014 Method for cooling a steel strip in a continuous annealing furnace |
| 02/09/1988 | US4724012 Iron, nickel, chromium and cobalt alloy |
| 02/09/1988 | US4723562 Apparatus for cooling a moving metal product |
| 02/03/1988 | CN86104349A Technology of surface hardening treatment by laser and the equipment |
| 02/02/1988 | US4722286 Oven with means to establish a uniform temperature profile |
| 01/28/1988 | WO1988000619A1 Line treatment unit for metal products |
| 01/28/1988 | DE3623623A1 Process for the reworking of tools |
| 01/27/1988 | EP0254633A1 Installation for the single pass treatment of metal products |
| 01/27/1988 | EP0254020A1 Inductive heater for heating the edges of elongated moving workpieces |
| 01/27/1988 | CN87204850U Position fixing device for gear induction quench |
| 01/26/1988 | US4721536 Method for making steel tubes or pipes of increased acidic gas resistance |
| 01/26/1988 | US4721153 High-chromium compound roll |
| 01/26/1988 | CA1231834A1 Car stabilizer and a manufacturing method therefor |
| 01/21/1988 | DE3713335A1 Cutting knife for harvesting machines |
| 01/20/1988 | EP0253061A2 Method of producing piston rings |
| 01/19/1988 | US4720312 Process for producing surface remelted chilled layer camshaft |
| 01/19/1988 | US4720311 Camshaft lobe hardening method and apparatus |
| 01/19/1988 | CA1231600A1 Process for alloying for galvanization and alloying furnace therefor |
| 01/13/1988 | EP0252895A2 Method and apparatus for producing high resistant rails |
| 01/12/1988 | US4718952 Process for producing a remelted and chilled camshaft |
| 01/12/1988 | CA1231292A1 Local heat treatment of electrical steel |
| 01/12/1988 | CA1231272A1 Insulation anchor |
| 01/07/1988 | DE3622302A1 Working method for heating semifinished products cast in continuous casting installations or formed in forming installations, for introduction into forming and/or further-processing installations |
| 01/06/1988 | CN86108728A Fluorescent lamp continous electric roaster |
| 12/30/1987 | CN86104210A Multi-chamber heat exchanging annealing energy-saving furnace |
| 12/30/1987 | CN86103917A A controlled heat treatment to increase the fatigue strength fo low-carbon multielement alloy steel crankshaft |
| 12/29/1987 | US4715907 Method for heat treating ferrous parts |
| 12/29/1987 | US4715904 Method for producing a magnet with radial magnetic anisotropy |
| 12/29/1987 | CA1230933A1 Method and apparatus for laser gear hardening |
| 12/23/1987 | EP0249888A2 Aluminothermic preformed body for heating rails and process of its manufacturing |
| 12/22/1987 | US4714809 Method and apparatus for shaping the surfaces of cams on a camshaft |
| 12/22/1987 | US4714500 Heating-cooling cycles |
| 12/22/1987 | CA1230542A1 Insulative coating composition for electrical steels |
| 12/22/1987 | CA1230478A1 Apparatus for in situ annealing of a pressure vessel |
| 12/15/1987 | US4713154 Continuous annealing and pickling method and apparatus for steel strips |
| 12/15/1987 | US4713125 Method of cooling steel strip in continuous heat treating line |
| 12/15/1987 | US4713122 Production of thin flat articles with hardened surfaces |
| 12/08/1987 | US4711431 Spray-cooling apparatus |
| 12/08/1987 | US4711114 Method of and apparatus for the production of wide strip |
| 12/03/1987 | DE3717537A1 Slow cooling zone for continuous steel annealing furnace |
| 12/01/1987 | US4710245 Method of making tubular units for the oil and gas industry |
| 12/01/1987 | US4710240 Annealing steel strip |
| 12/01/1987 | US4709570 Method for setting steel stock discharge temperature of heating furnace in hot rolling line |
| 12/01/1987 | CA1229750A1 Cold rolled dual-phase structure steel sheet having an excellent deep drawability and a method of manufacturing the same |
| 11/26/1987 | DE3711451A1 Partially surface-hardened grooved roller, and surface-hardening process |
| 11/26/1987 | DE3711450A1 Partially surface-hardened grooved roller, and surface-hardening process |
| 11/25/1987 | EP0247021A2 Apparatus for the controlled thermal treatment of railroad-switch components |
| 11/25/1987 | EP0246660A2 Induction heating apparatus |
| 11/24/1987 | US4708752 Process for laser hardening drilling bit cones having hard cutter inserts placed therein |
| 11/24/1987 | US4708748 Method of making cold rolled dual-phase structure steel sheet having an excellent deep drawability |
| 11/24/1987 | US4708324 Apparatus for in situ annealing of a pressure vessel |
| 11/19/1987 | EP0245776A1 Flexible radiant tube-heater |
| 11/19/1987 | DE3631551C1 Process for avoiding black annealing edges in the annealing of steel strip |
| 11/18/1987 | CN86205750U Well type annealing furnace of wire stock |
| 11/11/1987 | EP0245194A2 A method and apparatus for the induction heat treatment of irregularly shaped workpieces |
| 11/11/1987 | EP0244580A1 Apparatus for inductive heating |
| 11/10/1987 | US4705579 Method for cooling a metal strip in a continuous annealing furnace |
| 11/10/1987 | US4705578 Method of constructing a magnetic core |
| 11/10/1987 | CA1229145A1 Method of controlling cooling of hot-rolled steel sheet and system therefor |
| 11/04/1987 | EP0243578A1 Method of manufacturing a rolling bearing ring with a continuous split gap at at least one point of its periphery |
| 11/04/1987 | EP0243533A1 Method for maufacturing welded pipes |
| 11/03/1987 | US4704167 Low speed and high speed |
| 11/03/1987 | US4704166 Continuous cooling line |
| 11/03/1987 | US4703640 Coiler-furnace unit |
| 11/03/1987 | CA1228788A1 Method of manufacturing grain-oriented silicon steel sheets |
| 11/03/1987 | CA1228704A1 Muffle-furnance for continuous heat treatment of travelling objects |
| 10/28/1987 | EP0243340A1 Device for compensating skid marks on heated slabs |
| 10/28/1987 | EP0242376A1 Process for continuous patenting of wire and device for carrying out the process |
| 10/27/1987 | CA1228626A1 Methods of repair |
| 10/22/1987 | DE3623791C1 Method and apparatus for the heat treatment of hot-formed upper and lower straps |
| 10/21/1987 | EP0241582A2 Method for the manufacture of non-allergy creating precious metal objects. |
| 10/20/1987 | US4701589 Method and apparatus for heat treating coiled springs |
| 10/20/1987 | US4701584 Method and apparatus for the induction heat treatment of irregularly shaped workpieces |
| 10/14/1987 | EP0240755A1 Heat treating method for obtaining a flat magnetization curve in amorphous cores |
| 10/13/1987 | US4700053 Radiant brazing temperature sensing apparatus and process |
| 10/13/1987 | US4700040 Radiant brazing temperature sensing apparatus and process |
| 10/13/1987 | US4698897 Making hot roller steel strip from continuously cast ingots |
| 10/07/1987 | EP0240052A1 Method to preheat billets with a saving of energy |
| 10/07/1987 | EP0239792A2 Rotary hearth furnace |
| 10/07/1987 | EP0239688A1 Annealing separator used in the finishing annealing step for producing a grain-oriented electrical steel sheet |
| 10/06/1987 | USH340 Low mass diffusion bonding tools |
| 10/06/1987 | US4698103 Continuous annealing with rapid cooling; reduced fractures; flatness |
| 10/06/1987 | US4698102 Process for producing, by continuous annealing, soft blackplate for surface treatment |
| 10/06/1987 | CA1227728A1 Method for improving the annealing separator coating on silicon steel and coating therefor |
| 10/06/1987 | CA1227727A1 Method for finishing steel shapes with magnetite and product obtained therefrom |
| 09/30/1987 | EP0239295A2 Process for forming hard cutter insert bearing cones for rock bits |
| 09/29/1987 | US4696083 Method for making machine parts and machine parts produced thereby |
| 09/29/1987 | US4696080 Metallic wire for spinning machinery and the method of manufacturing the same |
| 09/24/1987 | DE3609329A1 Apparatus for pushing on the last ingots through an ingot-heating plant |
| 09/23/1987 | CN86103933A Cool-controlling treatment and cooling device of hot-rolled steel tube |
| 09/22/1987 | CA1227110A1 Pipe quenching apparatus and method |
| 09/22/1987 | CA1227109A1 Method for producing a weldable austenitic stainless steel in heavy sections |
| 09/16/1987 | EP0236666A2 Process for reheating semiproducts from continuous-casting installations or from shaping installations for their introduction into shaping and/or finishing installations |
| 09/16/1987 | EP0120976B1 Process for manufacturing cold-rolled steel for deep drawing |
| 09/15/1987 | US4694131 Induction heating method and apparatus for relieving residual stress in welded joint between main and branch pipes |
| 09/15/1987 | CA1226770A1 Apparatus for cooling a strip prior to a minispangle operation |
| 09/08/1987 | US4691898 Continuous annealing furnace for metallic strip |
| 09/03/1987 | DE3624960C1 Deflection roller in continuous furnaces, in particular for the treatment of strips |