| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
|---|
| 10/10/1990 | CN2063522U Machine controlled by microcomputer for crankshaft middle frequency quenching |
| 10/09/1990 | US4961793 Comprising specific amounts of carbon, manganese, silicon, sulfur, phosphorus, nitrogen, aluminum, copper and iron |
| 10/03/1990 | CN1045813A Steel sheets for porcelain enameling and method of producing same |
| 10/02/1990 | CA1274799A1 Feed-through element for vacuum apparatus and apparatus provided with such feed-through elements |
| 09/26/1990 | EP0388607A1 Clamping device for crankshafts during hardening of the latter |
| 09/26/1990 | EP0388437A1 Long life cover for heat chamber. |
| 09/25/1990 | US4959107 Heat treatment of aluminum alloy |
| 09/25/1990 | US4958972 Breakable composite drill screw |
| 09/20/1990 | DE3908625A1 Annealing-material carrier for wire or profile coils |
| 09/20/1990 | DE3908457A1 Method and installation for manufacturing rolled material from slabs |
| 09/19/1990 | EP0387786A2 Process for producing cold-rolled strip or sheet of austenitic stainless steel |
| 09/19/1990 | EP0387361A1 Production method of stainless thin steel sheet having excellent surface luster and high corrosion resistance |
| 09/19/1990 | CN1045422A Technology for making spring with ordinary carbon steel |
| 09/18/1990 | US4957431 Heating mantle with a porous radiation wall |
| 09/18/1990 | US4957154 Process for the in-line homogenization and recrystallization of metallic products obtained by continuous casting |
| 09/18/1990 | CA1274157A1 Continuous annealing method and apparatus for deep drawable extra-low carbon steel |
| 09/18/1990 | CA1274155A1 Hard steel sheet manufactured from al-killed continuous-cast carbon-manganese steel, and a method for the manufacture of such sheet |
| 09/12/1990 | EP0386758A1 Steel sheets for porcelain enameling and method of producing the same |
| 09/11/1990 | US4956242 Steel foil for drawing container with organic film coat |
| 09/11/1990 | US4956025 Coiling, crystallization |
| 09/11/1990 | CA1273786A1 Method and device for leveling metal strip to be fed into continuous annealing furnace |
| 09/07/1990 | WO1990007984A3 Apparatus for treating a pipe |
| 09/05/1990 | EP0385403A1 Television picture tube inner shielding material having a blackened layer of superior adhesion and method of manufacturing the same |
| 09/05/1990 | EP0385284A1 Process and apparatus for heat treating with low distortion of hardenable materials and where in at least a partial recycling of the cooling and the washing fluid is effected |
| 09/05/1990 | EP0384964A1 Process and apparatus for induction hardening of the corrugated surfaces of a workpiece |
| 09/05/1990 | CN2061678U Novel box-type electric resistance furnace with sealing furnace door |
| 09/04/1990 | US4954684 Vertical type heat-treating apparatus and heat-treating method |
| 09/04/1990 | US4954183 Lead heat treatment of wire with prevention of lead entrainment |
| 09/04/1990 | US4953832 Apparatus for the controlled cooling of hot rolled steel samples |
| 08/30/1990 | DE3905551A1 Method and apparatus for treating surfaces by means of laser beam |
| 08/29/1990 | EP0384181A2 Steam turbine rotor shaft and heat-resisting steel therefor |
| 08/29/1990 | EP0384010A1 Method for transporting hot-rolled wire rod and apparatus therefor |
| 08/29/1990 | EP0383786A1 Device for producing a water curtain. |
| 08/28/1990 | US4952250 Method for manufacturing steel article having high toughness and high strength |
| 08/28/1990 | US4951686 Color marks on catheter guide wire |
| 08/23/1990 | WO1990009459A1 Method for thermal treatment of high-speed steel |
| 08/23/1990 | WO1990009458A1 Improvements in scanning induction hardening |
| 08/23/1990 | DE3905347A1 Method for providing erosion protection for turbine blades |
| 08/22/1990 | CN1009281B Apparatus for soaking steel materials |
| 08/21/1990 | US4950338 Prevention of dimensional distortiion |
| 08/21/1990 | US4950335 Process for producing articles for magnetic use |
| 08/16/1990 | EP0382125A1 Method and apparatus for thermal suface-hardening of metallic workpieces |
| 08/15/1990 | CN1044678A Liquid core furnace charging process of killed steel ingots |
| 08/14/1990 | US4948435 Method for inhibiting stress corrosion cracking |
| 08/14/1990 | US4948432 Method for manufacturing a rotor for use in a progressive cavity pump |
| 08/14/1990 | CA1272583A1 Method of constructing a magnetic core |
| 08/09/1990 | DE3903727A1 Method and apparatus for the thermal treatment of metal coils |
| 08/09/1990 | DE3903726A1 Method and apparatus for the thermal treatment of metal coils |
| 08/08/1990 | CN1009062B Apparatus and method for air cooling hot rolled steel rod |
| 08/07/1990 | US4947023 Method and apparatus for roll dulling by pulse laser beam |
| 08/07/1990 | US4946515 Noncracking |
| 08/07/1990 | CA1272431A1 Method and apparatus of cooling steel strip |
| 07/31/1990 | US4944495 Method and apparatus for leveling a refractory bed surface |
| 07/30/1990 | CA2005724A1 Method and apparatus for leveling a refractory bed surface |
| 07/26/1990 | WO1990008202A1 Production of seizing-hardenable steel sheet |
| 07/26/1990 | WO1990007984A2 Apparatus for treating a pipe |
| 07/26/1990 | DE4001524A1 Mfr. of grain-oriented silicon steel - including blowing slab steel with oxygen-enriched gas prior to de-scaling and hot rolling |
| 07/25/1990 | EP0379104A1 Process for annealing metal work pieces in a hydrogen-enriched protective atmosphere in a continuous furnace |
| 07/24/1990 | US4943036 Method and apparatus for isothermal holding of wire when a wire is heat-treated in-line |
| 07/24/1990 | US4942656 Plant and method for the temperature-equalization of slabs downstream of a continuous casting plant |
| 07/19/1990 | CA2005027A1 Hot working method for producing grain oriented silicon steel with improved glass film formation |
| 07/18/1990 | CN1043958A Improvement in automatic apparatus of heat treatment |
| 07/17/1990 | CA1271692A1 Method of manufacturing a cold-rolled steel sheet having a good deep drawability |
| 07/12/1990 | WO1990007584A1 Device for hardening the surfaces of workpieces of different lengths |
| 07/12/1990 | WO1990007583A1 Automated thermal processing installation |
| 07/11/1990 | CN1043751A New micro-energy soaking technology for steel ingot |
| 07/10/1990 | CA1271395A1 Annealing of thermally insulated core |
| 07/04/1990 | EP0376832A1 Automatic thermal treatment installations |
| 07/04/1990 | EP0376368A2 Process for the production of bearings |
| 07/04/1990 | CN1043528A Production technology for cold-rolled biphase steel |
| 07/03/1990 | US4938811 Sag resistance |
| 07/03/1990 | US4938460 Apparatus for air quenching railway heads |
| 07/03/1990 | US4938458 Continuous ion-carburizing and quenching system |
| 06/27/1990 | EP0375392A2 Production method for a caterpillar band bushing |
| 06/27/1990 | EP0374389A2 Process for the pretreatment of parts for a composite camshaft |
| 06/27/1990 | EP0374373A1 Process and device for the low distortion hardening of crankshafts |
| 06/27/1990 | CN2058680U Laser processor |
| 06/27/1990 | CN1043385A Stove for heating, insulating and store of metallurgical products |
| 06/27/1990 | CA2004761A1 Automatic thermal processing facilities |
| 06/26/1990 | US4936926 Hot working, controlled cooling |
| 06/26/1990 | US4936771 Skid mark erasure system |
| 06/21/1990 | DE3941338A1 Improving wear and pin-hole corrosion properties of cast iron - by remelting surface of casting and quenching to reduce size of modular graphite |
| 06/21/1990 | DE3842372A1 Device for the heating of metallic workpieces |
| 06/20/1990 | EP0374116A1 Roll ring, comprising cemented carbide and cast iron, and method for manufacture of the same |
| 06/19/1990 | US4935112 Inducing current through strand without direct contact; surface treatment; demetallization; cleaning |
| 06/19/1990 | US4935071 Baking of lithographic plates |
| 06/19/1990 | CA1270427A1 Heat treatment of steel elements in fluidized beds |
| 06/19/1990 | CA1270426A1 Method for the production of high strength electric seam welded oil-well pipe |
| 06/14/1990 | WO1990006379A1 Furnace for reheating, holding and storing steelworks products |
| 06/13/1990 | EP0372850A1 Improvements in or relating to the heating of substances |
| 06/13/1990 | DE3841128A1 Drilling tool |
| 06/12/1990 | US4933024 Hot rolling, cooling, heating to austenite temperature, cooling |
| 06/12/1990 | US4933023 Method for manufacture of non-allergy creating precious metal objects |
| 06/06/1990 | EP0371946A2 Method for manufacturing a rolling mill roll |
| 06/06/1990 | EP0371340A1 High strength gear |
| 06/06/1990 | EP0371281A1 Apparatus for producing hot-rolled steel strip |
| 06/05/1990 | US4931108 Method of heat treatment of rolled steel material using foams impregnated with water soluble polymers |
| 06/05/1990 | US4931107 Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing |
| 06/05/1990 | US4930909 Rolling bearing |
| 06/05/1990 | EP0328603A4 Control of straightness in scanning induction hardening of steel. |