| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 06/15/1999 | US5911780 Gear shot peening method |
| 06/15/1999 | CA2154779C Rails of pearlitic steel with high wear resistance and toughness and their manufacturing methods |
| 06/09/1999 | EP0921710A2 Induction heating type galvanized steel sheet alloying system, high frequency heating apparatus, impedance matching apparatus and impedance transforming method |
| 06/09/1999 | EP0921709A2 Alloying system and heating control device for high grade galvanized steel sheet |
| 06/09/1999 | EP0921208A2 Method and system for cooling strip material |
| 06/09/1999 | EP0920929A2 Method and System for suppressing surface oxide film during hot finish rolling |
| 06/09/1999 | EP0920928A2 Method and system for suppressing formation of scale defects during hot finish rolling |
| 06/09/1999 | CN1219206A Steel band heat-treating apparatus by gas jet stream |
| 06/09/1999 | CN1218724A Method and apparatus for suppressing formation of skin oxide default at heat finishing rolling |
| 06/09/1999 | CN1218722A Method and apparatus for suppressing formation of surface film oxide at heat finishing rolling |
| 06/08/1999 | US5910343 Improving the adhesitivity of surface refined parts to body |
| 06/08/1999 | US5910185 Device for the guidance of hot-rolled strip through an inductor |
| 06/08/1999 | US5910184 Method of manufacturing hot-rolled flat products |
| 06/08/1999 | CA2244042A1 Wheel cooling tunnel |
| 06/08/1999 | CA2130092C A device for tempering steel tubes |
| 06/03/1999 | WO1999027143A1 Device for electro-inductive hardening of bearing surfaces and transition radii in crankshafts |
| 06/03/1999 | CA2310846A1 Device for electro-inductive hardening of bearing surfaces and transition radii in crankshafts |
| 06/02/1999 | EP0919296A1 Adaption of hot rolling lines for rolling thin strips |
| 06/02/1999 | EP0815405B1 Refractory moulding for revolving hearth furnaces |
| 06/02/1999 | EP0804622B1 Method for heat treatment of stainless steel |
| 06/02/1999 | EP0771366B1 Martensitic stainless steel having excellent hot workability and sulfide stress cracking resistance |
| 05/27/1999 | WO1999025883A1 Coil box oven |
| 05/27/1999 | WO1999025882A1 Improved process for the annealing of drawn carbon steel rolls and coils of carbon steel sheet |
| 05/27/1999 | WO1999025500A1 Method for producing a metal strip and device for reducing the risk of such a strip breaking |
| 05/27/1999 | WO1999007495A3 Method for producing steel rolling bearing rings |
| 05/27/1999 | DE19752237A1 Apparatus for electroinductive hardening of crankshaft bearing surfaces and transition radii |
| 05/27/1999 | CA2310411A1 Coil box oven |
| 05/26/1999 | EP0918098A1 Coated seizure-hardening type cold-rolled steel sheet having excellent aging resistance and method of production thereof |
| 05/26/1999 | EP0917593A1 Making metal powder articles by sintering, spheroidizing and warm forming |
| 05/26/1999 | CN1217409A Thickened and reinforced structure of hollow column section and heat-treatment method therefor |
| 05/26/1999 | CN1043477C Seal apparatus of heat-treatment furnace using furnace atmosphere gas containing hydrogen gas |
| 05/26/1999 | CN1043476C Method and apparatus for sealing outlet-inlet zone of heat-treatment furnace using atmosphere gas containing hydrogen gas |
| 05/25/1999 | US5906691 Induction hardened microalloy steel having enhanced fatigue strength properties |
| 05/25/1999 | US5906053 Rotary cutting blade having a laser hardened cutting edge and a method for making the same with a laser |
| 05/20/1999 | WO1999024728A1 Rolling bearing and method of producing the same |
| 05/20/1999 | WO1999024639A1 Method for covering electric steel strips with an annealing separator |
| 05/20/1999 | WO1999024630A1 High fatigue-strength steel wire and spring, and processes for producing these |
| 05/20/1999 | WO1999024186A1 Method to control the axial position of slabs emerging from continuous casting and relative device |
| 05/20/1999 | DE19750858A1 Pipe shaped mold |
| 05/20/1999 | CA2310045A1 Method to control the axial position of slabs emerging from continuous casting and relative device |
| 05/19/1999 | EP0916915A1 Combined convective-radiative system for heat treatment of a web |
| 05/19/1999 | EP0916741A1 Furnaces with a rapid cooling of metal strips |
| 05/19/1999 | EP0916420A2 Welded pipe |
| 05/19/1999 | EP0705155B1 Method of forming seamed metal tube |
| 05/19/1999 | CN2319417Y High speed annealing tin-plating machine |
| 05/19/1999 | CN2319416Y Continuous vertical gas protecting electrical furnace |
| 05/18/1999 | US5904787 Wire for springs of steel |
| 05/18/1999 | US5904204 Apparatus for producing strip of stainless steel |
| 05/18/1999 | US5904201 Solidification of an article extension from a melt using a ceramic mold |
| 05/14/1999 | CA2252702A1 Convection-radiation system for heat treatment of a continuous strip |
| 05/12/1999 | EP0914481A1 Vertical annealing furnace for a strip treatment device |
| 05/12/1999 | EP0914480A1 Process for producing an easily shaped cold-rolled sheet or strip |
| 05/12/1999 | EP0914479A1 Steel for enameling and method of making it |
| 05/12/1999 | CN1216348A Safety system for rapid-cooling ovens for metal strip |
| 05/12/1999 | CN1216323A Improvements made to rapid-cooling ovens for metal strip |
| 05/12/1999 | CA2253323A1 Seam free welded pipe |
| 05/11/1999 | US5902423 Heat treatment of grinding rod |
| 05/11/1999 | US5902422 Cooling of the rolling stock to 650 degrees c prior to coiling transforms the rolling stock isothermally from the austenite to ferrite, pearlite, or if needed, bainite phase immediately after cooling; then careful cooling unneccessary |
| 05/06/1999 | WO1999022038A2 Induction hardening apparatus for a crankshaft |
| 05/06/1999 | EP0913658A1 Safety system for furnaces for the rapid cooling of metallic strips |
| 05/06/1999 | EP0913488A2 Grain oriented electrical steel sheet and method |
| 05/06/1999 | EP0912769A1 Induction hardened microalloy steel having enhanced fatigue strength properties |
| 05/06/1999 | EP0912768A1 Method for making an electric sheet steel with oriented grains for the manufacture of transformer magnetic circuits in particular |
| 05/06/1999 | EP0912270A1 Method for producing axially symmetric parts and the article |
| 05/04/1999 | US5899516 Railway wheel and manufacturing method of the railway wheel |
| 05/04/1999 | US5899052 High hardness boron steel rotary blade |
| 04/29/1999 | DE19747018A1 Heat treatment unit for steel bow saw blades |
| 04/28/1999 | EP0911418A1 Steel band heat-treating apparatus by gas jet stream |
| 04/28/1999 | EP0910677A1 Method and device for temper-hardening flat metal products |
| 04/28/1999 | EP0910676A1 Process for producing a grain-orientated electrical steel sheet |
| 04/28/1999 | CN1215435A Vertical annealing furnace for a strip treatment device |
| 04/28/1999 | CN1043153C Alignment and tempering device for large saw-disc |
| 04/28/1999 | CA2249749A1 Grain oriented electrical steel sheet and method |
| 04/27/1999 | US5897717 Heating and rolling to form a steel with carbon, silicon, manganese, chromium, molybdenum, vanadium and niobium; high fracture toughness |
| 04/22/1999 | WO1999019522A1 Method for preventing quenching cracks from forming on the inner surface of a cylindrical hollow body |
| 04/22/1999 | WO1999019109A1 Continuous steel strip for twin presses and method for producing the same |
| 04/22/1999 | DE19808763C1 Apparatus for hardening cylindrical bearing surfaces of shaft |
| 04/21/1999 | EP0909339A2 Method for processing billets from multiphase alloys and the article |
| 04/21/1999 | EP0614992B1 Metal band cooling apparatus and cooling method therefor |
| 04/21/1999 | CN1214642A Method and arrangement for producing hot-rolled strip |
| 04/21/1999 | CN1214370A Heat treatment process of cutter for stone work |
| 04/21/1999 | CN1214369A Anticorrosive treatment technology for complex board container |
| 04/21/1999 | CN1043058C Process and device for exchanging atmosphere in hood-type annealing furnace |
| 04/20/1999 | US5895599 Induction heating device and continuous treatment installation including same |
| 04/20/1999 | US5895534 Method of increasing the yield strength of cold formed steel sections |
| 04/20/1999 | CA2071432C Vehicle suspension member and method for making |
| 04/15/1999 | WO1999018251A1 Oxidation-resistant metal foil, its use and method for its production |
| 04/15/1999 | WO1999018246A1 Method for determining and controlling material flux of continuous cast slabs |
| 04/15/1999 | DE19802914C1 Chain wheel for rock cutting machine |
| 04/15/1999 | CA2305401A1 Method for determining and controlling material flux of continuous cast slabs |
| 04/15/1999 | CA2273934A1 Oxidation-resistant metal foil, its use and method for its production |
| 04/14/1999 | EP0908264A1 Apparatus for hardening the internal contour of a gun barrel with laser beam |
| 04/14/1999 | EP0907431A1 Process for shaping a flat metal workpiece |
| 04/14/1999 | EP0804308A4 Heat treating and removing cores from castings |
| 04/14/1999 | CN1214085A Ready-to-use metal wire and method for producing same |
| 04/14/1999 | CN1213702A Method of reducing quenching transshape of semi-pherical thin shell metal workpiece |
| 04/14/1999 | CN1213701A Production method of heat-treated member |
| 04/08/1999 | DE19742739A1 Method and apparatus for treatment of workpiece surfaces |
| 04/07/1999 | EP0906453A1 Relaxation-resistant steel spring |
| 04/07/1999 | EP0906452A1 Permanent way component and process for its production |