| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 01/18/1989 | EP0298999A1 Process and device for the partial heat treatment and drawing of steel wire rod products and application of said process |
| 01/18/1989 | CN2031008U Surface local hardening device for crushing roll teeth of cane crusher |
| 01/18/1989 | CN1030465A Fabrication of low-carbon alloy martensite steel leaf spring |
| 01/17/1989 | US4798772 Steel sheets for painting and a method of producing the same |
| 01/17/1989 | US4798633 Nickel-base alloy heat treatment |
| 01/17/1989 | US4798368 Apparatus for controlled slow cooling of steel tubulars |
| 01/17/1989 | US4798367 Apparatus of cooling steel strip in continuous heat treating line |
| 01/17/1989 | CA1248783A1 Apparatus and method for air cooling hot rolled steel rod |
| 01/11/1989 | EP0298186A1 Process for operating a convection bell type annealing furnace, especially for coils of steel wire or strip |
| 01/11/1989 | EP0198871B1 Method and installation for heat treatment, especially case-hardening |
| 01/10/1989 | US4797329 Aluminum coating on ferrous metals for catalytic exhaust systems |
| 01/10/1989 | US4796653 Method of enhancing residual compressive stress in double metallic tubes |
| 01/04/1989 | CN1030132A Process for preheating blanks casted in continous casting machine or worked in metal working apparatus in order to send them into metal working and/or reworking machine |
| 01/03/1989 | US4795885 Flexible radiant tube heater |
| 01/03/1989 | US4795872 Electromagnetic induction heating apparatus including a magnetic flux diverting assembly |
| 01/03/1989 | US4795503 Nickel electroplating, oxidation, acid dipping and chemical plating |
| 12/29/1988 | WO1988010319A1 High-strength, cold-rolled steel sheet having high gamma value and process for its production |
| 12/29/1988 | DE3719695A1 Gas-tight furnace, in particular vacuum furnace |
| 12/28/1988 | EP0297024A1 Method for hardening a hollow article |
| 12/27/1988 | US4793873 Coating with magnesium oxide, high temperature annealing, removal of boron using group six compounds |
| 12/27/1988 | US4793870 Continuous treatment of cold-rolled carbon high manganese steel |
| 12/27/1988 | US4793869 Continuous treatment of cold-rolled carbon manganese steel |
| 12/27/1988 | US4793801 Method for retaining the configuration of an aperture formed through a coil |
| 12/22/1988 | DE3740619C1 Heating furnace for a roughed-strip casting installation |
| 12/22/1988 | DE3738317C1 Supporting-roller arrangement for reheating furnaces for steel strips produced in the CSP process |
| 12/22/1988 | DE3718429A1 Process and equipment for annealing strand-shaped material |
| 12/21/1988 | EP0296102A1 Device with several components for heat treatment |
| 12/20/1988 | US4792301 Method and furnace apparatus for continuously heating steel blanks |
| 12/20/1988 | US4791798 Apparatus for producing base material for aluminum foil |
| 12/20/1988 | CA1246971A1 Aqueous solution for cooling cold-rolled steel strip in a continuous annealing process |
| 12/20/1988 | CA1246968A1 Grain-oriented electrical steel sheet having stable magnetic properties resistant to stress-relief annealing, and method and apparatus for producing the same |
| 12/20/1988 | CA1246902A1 High-strength alloy for industrial vessels |
| 12/14/1988 | EP0295207A1 Arrangement of bell-type furnace and quenching tank |
| 12/14/1988 | EP0294628A2 Process for heat treating a heat exchanger tube surrounded by a support plate |
| 12/13/1988 | US4791260 Induction type electrical wire preheater |
| 12/13/1988 | US4790889 Low manganese content steel rapidly cooled to coiling temperature |
| 12/13/1988 | US4790165 Feed-through element for a vacuum apparatus |
| 12/13/1988 | CA1246404A1 Iron piston having selectively hardened ring groove |
| 12/13/1988 | CA1246339A1 Apparatus for cooling a moving metal product |
| 12/13/1988 | CA1246338A1 Method and apparatus for heating a strip of metallic material in a continuous annealing furnace |
| 12/07/1988 | EP0294134A2 Manufacture of ductile high-permeability grain-oriented silicon steel |
| 12/06/1988 | US4789333 Convective heat transfer within an industrial heat treating furnace |
| 12/01/1988 | DE3800209C1 Box for annealing materials |
| 11/30/1988 | EP0293286A1 Method and device for manufacturing articles for magnetic use |
| 11/30/1988 | EP0293002A1 Method for heat-treating steel rail head |
| 11/29/1988 | US4788394 Multi-wire induction heating |
| 11/29/1988 | US4787944 Using high density radiation and self-cooling |
| 11/29/1988 | US4787844 Seal arrangement for high temperature furnace applications |
| 11/29/1988 | US4787227 Feed-through element for a vacuum apparatus |
| 11/29/1988 | CA1245545A1 Method and apparatus for applying heat to articles and materials |
| 11/24/1988 | DE3806355C1 Stackable charging plate for material to be annealed |
| 11/24/1988 | DE3714885A1 Anlage zum plasmaumschmelzen der oberflaechenschicht von metallbloecken Annex to the plasmaumschmelzen oberflaechenschicht of metallbloecken |
| 11/23/1988 | EP0292150A2 Method of producing grain oriented silicon steel sheets having excellent magnetic properties |
| 11/23/1988 | EP0291952A2 Differential pressure sealing apparatus and method |
| 11/23/1988 | CN88101245A Furnace used for forming a black oxidized film on the surface of a sheet metal and method for forming black oxidized film on surface of shadow mask material using furnace |
| 11/22/1988 | US4786772 Induction heating coil for heat-treating metallic tubes |
| 11/22/1988 | US4786338 Method for cooling rolled steels |
| 11/22/1988 | US4786249 Spring heat treating furnace |
| 11/22/1988 | US4785985 Apparatus for contactless guiding of webs of material, in particular, metal strips, by means of a gas medium |
| 11/22/1988 | US4785654 Handling strip or slab material |
| 11/22/1988 | US4785646 Method of cooling hot-rolled steel plate |
| 11/22/1988 | CA1245136A1 Continuous annealing method and apparatus for cold rolled steel strips |
| 11/22/1988 | CA1245135A1 Method of making tubular units for the oil and gas industry |
| 11/17/1988 | EP0291383A1 Method and apparatus for heat-treating camshafts |
| 11/17/1988 | EP0197079B1 Method for the continuous tempering of sheet metal such as steel and plant for implementing it |
| 11/15/1988 | US4785154 Method and apparatus for joining together the ends of a metallic band by resistance inert gas welding |
| 11/15/1988 | US4785147 System for hardening gears by induction heating |
| 11/10/1988 | DE3714259A1 Device for the continuous annealing of pipes |
| 11/09/1988 | EP0290245A2 Baking of lithographic plates |
| 11/09/1988 | EP0290196A2 Method for improving magnesium oxide steel coatings using non-aqueous solvents |
| 11/09/1988 | EP0290116A2 High temperature plug assembly |
| 11/08/1988 | US4782994 Method and apparatus for continuous in-line annealing of amorphous strip |
| 11/08/1988 | CA1244326A1 Accelerated carburizing method with discrete atmospheres |
| 11/08/1988 | CA1244325A1 Method and apparatus for laser hardening of steel |
| 11/01/1988 | US4781770 Process for laser hardfacing drill bit cones having hard cutter inserts |
| 11/01/1988 | US4781769 Separating-agent composition and method using same |
| 11/01/1988 | US4781054 Apparatus for bending and forming heated tubular workpieces |
| 10/27/1988 | DE3811270A1 Verfahren zur kontinuierlichen behandlung von kaltgewalztem mangan-kohlenstoffstahl Process for the continuous treatment of cold rolled manganese carbon steel |
| 10/26/1988 | EP0288054A2 Method of producing steel plate with good low-temperature toughness |
| 10/26/1988 | EP0287790A2 Device for maintaining a uniform temperature across the width of a hot-rolled strip |
| 10/26/1988 | EP0287710A2 Method of heat treating a martensitic chromium-molybdenum steel |
| 10/25/1988 | US4779848 Cooling muff used in thermal processing method |
| 10/25/1988 | CA1243513A1 Method of making a multigrip fastener and fastener made thereby |
| 10/25/1988 | CA1243509A1 Method and apparatus for cooling and handling hot rolled steel rod in direct sequence with a high speed rolling mill |
| 10/19/1988 | EP0287503A2 Method of and pressure cooling apparatus for cooling a continuous product |
| 10/19/1988 | EP0287357A2 Method of reducing iron loss of grain oriented silicon steel sheet |
| 10/19/1988 | EP0286984A1 Reheating furnace with rotating flame burners for slabs and billets |
| 10/19/1988 | CN88101735A Rotary hearth multi-chamber, multi-purpose furnace system |
| 10/19/1988 | CN87101136A Heat treatment method for perforating head |
| 10/18/1988 | US4778971 Induction heating apparatus |
| 10/18/1988 | US4778652 Tensile strength, fatigue and fracture resistant steel, compact automobile part |
| 10/18/1988 | US4778345 Ceramic blade heat connected to hardened steel shaft |
| 10/18/1988 | CA1243201A1 Apparatus for cooling steel belt |
| 10/18/1988 | CA1243200A1 Process and apparatus for direct softening heat treatment of rolled wire rods |
| 10/13/1988 | DE3737694C1 Verfahren zum Betrieb einer Induktions-Haertevorrichtung fuer Kurbelwellen und eine solche Vorrichtung Method for operating an induction Haertevorrichtung for crankshafts and apparatus |
| 10/12/1988 | EP0285810A1 Process for thermally stressrelieving a tube based on nickel alloy |
| 10/12/1988 | EP0024437B2 Process for producing non-aging cold-rolled steel sheets |
| 10/06/1988 | WO1988007804A1 Electric induction heat treating furnace |
| 10/06/1988 | WO1988007590A1 Method and cover furnace for heat treatment of metal sheet in rolls |
| 10/06/1988 | WO1988007589A1 Rotary hearth multi-chamber multi-purpose furnace system |