| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 06/25/1997 | CN1152947A Process for producing steel pipe excellent in corrosion resistance and weldability |
| 06/25/1997 | CN1152625A Oil tempering steel wire and making method thereof |
| 06/25/1997 | CN1152483A Method of heating-furnace temp. having controlled soaking oxidation sorrounding and furnace embodied |
| 06/24/1997 | US5640872 Process and device for cooling heated metal plates and strips |
| 06/24/1997 | CA2088326C Method of producing low iron loss, low-noise grain-oriented silicon steel sheet, and low-noise stacked transformer |
| 06/19/1997 | DE19613919C1 Head screw for cylinder head and main bearing of IC engine |
| 06/19/1997 | CA2188632A1 Fabrication method of welded steel pipe using dual-phase stainless steel |
| 06/18/1997 | EP0779370A1 Method of continuous annealing of cold rolled steel plate and equipment therefor |
| 06/18/1997 | CN2256424Y Assembled steel wire heat treatment furnace |
| 06/18/1997 | CN1152031A Prodn process of biphase cast steel hook |
| 06/17/1997 | US5639418 Strip floater furnace with closed loop recirculation |
| 06/17/1997 | US5639012 Process and device for the posttreatment of welded compound panels |
| 06/12/1997 | WO1997020957A1 Edge hardening of chain saw guide bars |
| 06/12/1997 | WO1997020955A2 Skid mounted precision heat treat system |
| 06/12/1997 | DE19650710A1 Magnetic composite body with ferromagnetic section and weak or non-magnetic section e.g. for car fuel or oil control device |
| 06/12/1997 | CA2239214A1 Edge hardening of chain saw guide bars |
| 06/12/1997 | CA2237562A1 Skid mounted precision heat treat system |
| 06/11/1997 | EP0778353A1 Heat treating method |
| 06/11/1997 | EP0777752A1 Warm forming high-strength steel structural members |
| 06/11/1997 | EP0656071B1 Process and device for regulating the calorific output in a continuous annealing and processing line for continuously cast metal products |
| 06/11/1997 | CN2255984Y Automatic lid locator of heating furnace |
| 06/11/1997 | CN1151765A Method of increasing the yield strength of cold formed steel sections |
| 06/11/1997 | CN1151446A Pump head inner wall strengthening process for plunger pump |
| 06/11/1997 | CN1151441A Piston processing method |
| 06/10/1997 | US5637157 Method for making non-oriented magnetic steel sheet |
| 06/05/1997 | WO1997014525A3 Clamping shaft and method of producing the same |
| 06/05/1997 | DE19629332C1 Piston cylinder running surface |
| 06/05/1997 | DE19545101A1 Method and apparatus for cooling cast and rolled metal products |
| 06/04/1997 | EP0776984A1 Equipment for continuously manufacturing metal coils and metal coil manufacturing method |
| 06/04/1997 | EP0776381A1 Method for heat treating a metal component |
| 06/04/1997 | EP0776380A1 Surface treated iron bearing element |
| 06/04/1997 | CN1151189A Sealing device for zone outlet/inlet of atmosphere equipment |
| 05/28/1997 | EP0775757A1 Process and apparatus for hot dipping age resistant steel sheet |
| 05/28/1997 | EP0775752A1 Grain-oriented electrical steel sheet and method of manufacturing the same |
| 05/28/1997 | DE19619171C1 Method of heat treatment of welded connections of rail tracks |
| 05/28/1997 | CN1150827A Rail having high wear resistance and high internal damage resistance, and its production method |
| 05/28/1997 | CN1150825A Equipment for manufacturing stainless steel strip |
| 05/28/1997 | CN1150554A Hot strip production plant for rolling thin rolled strip |
| 05/21/1997 | EP0774520A1 Process for producing steel pipe excellent in corrosion resistance and weldability |
| 05/21/1997 | CN2254533Y Tap device for walking beam furnace |
| 05/20/1997 | US5630953 Method of fine-machining a workpiece surface to be supplied with a lubricant during operation of the workpiece |
| 05/20/1997 | CA2086283C Low-yield-ratio high-strength hot-rolled steel sheet and method of manufacturing the same |
| 05/15/1997 | WO1997017197A1 Stainless steel surface claddings of continuous caster rolls |
| 05/13/1997 | US5628837 Cutting tool |
| 05/13/1997 | CA2081496C Method of manufacturing a cold rolled steel sheet exhibiting an excellent resistance to cold-work embrittlement and a small planar anisotropy |
| 05/07/1997 | EP0771366A1 Martensitic stainless steel having excellent hot workability and sulfide stress cracking resistance |
| 05/07/1997 | EP0771226A1 Process for producing a ski edge |
| 05/07/1997 | EP0547097B1 Method of hardening corrugating rolls |
| 05/07/1997 | DE19644967A1 Method for manufacturing of drive roller for Torus-type stageless gear |
| 05/07/1997 | DE19622164C1 Cold rolled steel sheet with good drawing properties |
| 05/07/1997 | DE19541097A1 Hardening cutting tools with electron beams |
| 05/07/1997 | CN1149082A Online controlling method for continuously annealing furnace |
| 05/07/1997 | CN1149081A High strength steel strand for prestressed concrete and method for manufacturing the same |
| 05/07/1997 | CN1034817C Method for treating roller surface by laser |
| 05/06/1997 | US5626974 High carbon steel, surface carbonitride |
| 05/06/1997 | US5626693 Applying a constraining force on tubes while quenching to prevent warping |
| 05/02/1997 | EP0770707A1 Process for producing cold-rolled strip continuously |
| 05/02/1997 | EP0770695A1 Rail having high wear resistance and high internal damage resistance, and its production method |
| 05/02/1997 | EP0770692A1 Sealing device for zone outlet/inlet of continuous heat treatment furnace, continuous vacuum evaporation equipment and the like |
| 05/02/1997 | EP0770691A1 Apparatus for thermal treatment of metallic workpieces |
| 05/02/1997 | EP0770433A1 Method to roll strip and plate and rolling line which performs such method |
| 04/30/1997 | DE19539790A1 Attaching structures to duplex stainless steel plates by stud welding |
| 04/30/1997 | CN1034745C Method for nitriding austenitic stainless steel products |
| 04/29/1997 | US5624255 Multipurpose controlled atmosphere heat treatment system |
| 04/29/1997 | US5624235 Steam turbine, rotor shaft thereof, and heat resisting steel |
| 04/24/1997 | WO1997014525A2 Clamping shaft and method of producing the same |
| 04/24/1997 | DE19628136C1 Production of grain-orientated electrical sheets |
| 04/24/1997 | DE19538970A1 Spannwelle und Verfahren zu deren Herstellung Clamping shaft and methods for their preparation |
| 04/23/1997 | EP0769333A1 Method for continuously producing, in a line, rolled sheet metal strip of stainless steel with improved surface condition |
| 04/23/1997 | EP0769073A1 Cold formed high-strength steel structural members |
| 04/23/1997 | EP0699243B1 Thermal treatment device for metallic workpieces |
| 04/23/1997 | CN1148091A Method for medium frequency quenching cam |
| 04/23/1997 | CN1147988A Two-in-one working art for medium frequency welding and quenching coal cutter teeth |
| 04/22/1997 | CA2041403C Method of producing high-strength cold-rolled steel sheet suitable for working |
| 04/17/1997 | WO1997013613A1 Heat treating, annealing and tunnel furnace rolls |
| 04/17/1997 | DE19538364A1 Device for rapidly heating metal bolts during extrusion |
| 04/16/1997 | EP0767867A1 Turbine vane flow area restoration method |
| 04/16/1997 | EP0767718A1 Method and apparatus for joining metal components |
| 04/16/1997 | EP0625215B1 A device for tempering steel tubes |
| 04/16/1997 | CN1147608A Structure of oscillating snifting regulating valve |
| 04/15/1997 | US5620536 Forging, rolling, extruding, heat treating zirconium or alloy to form inner and outer billets to form tube blank, causing beta phase transformation within first component |
| 04/10/1997 | WO1997012676A1 Method and device for producing a honeycombed body of heat-treated two or multilayered metal foils |
| 04/09/1997 | EP0767353A1 Method to equalise the temperature in a heating furnace with a controlled-oxidisation ambient and heating furnace carrying out the method |
| 04/09/1997 | EP0621904B1 Device for heat-treating metal workpieces |
| 04/09/1997 | CN1147278A Sealing device for zone outlet/inlet of continuous heat treatment furnace, continuous vacuum evaporation equipment and the like |
| 04/09/1997 | CN1147020A Heat treatment for eliminating soft zone in supporting roll |
| 04/09/1997 | CN1147019A Bluing and low-carbon martensite heat treatment of high strength building steel bar |
| 04/08/1997 | US5618401 Inner-shield material to be attached inside a color cathode ray tube and manufacturing method thereof |
| 04/08/1997 | US5617735 To be installed downstream of a finishing stand for cooling a rolled product |
| 04/03/1997 | DE19536752A1 Verfahren und Vorrichtung zum Herstellen eines Wabenkörpers aus wärmebehandelten zwei- oder mehrschichtigen Metallfolien Method and apparatus for producing a honeycomb body made of heat-treated in two or multi-layer metal foils |
| 04/02/1997 | EP0765942A1 Process for heat treating steel rails |
| 04/02/1997 | EP0765698A1 Method of producing metal constructional elements with differential wall thickness |
| 04/02/1997 | EP0581806B1 Knife blades |
| 04/01/1997 | US5616297 Annealing base for hood-type annealing furnaces |
| 04/01/1997 | US5616295 Floating furnace |
| 04/01/1997 | US5616187 Alloy subjected to austenization and tempering |
| 04/01/1997 | US5615482 Method for making composite centrifugally cast furnace roll rings for furnace rolls |
| 04/01/1997 | US5615465 Process for manufacturing metal parts by free forging and drop forging in a press |
| 04/01/1997 | CA2047793C Apparatus for continuously cooling metal strip |
| 03/27/1997 | WO1997011201A1 Method for making arcuate coil springs, resulting springs and devices for carrying out the method |