| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 11/14/2012 | CN102776317A Bridge device connected between tap hole of converter and platform |
| 11/14/2012 | CN102776316A Sliding plate brick of slag blocking and steel tapping device for converter steel tapping hole |
| 11/14/2012 | CN102776315A Evaporative cooling tower and process for dry dedusting of converter gas |
| 11/14/2012 | CN102776314A Smelting method of ultra-low phosphorus steel |
| 11/14/2012 | CN102776313A Method for smelting high-phosphorus steel by low-temperature low-silicon molten iron in converter |
| 11/14/2012 | CN102776312A Converter protecting method |
| 11/14/2012 | CN102776311A Dephosphorization process for high phosphorous molten iron |
| 11/14/2012 | CN102134627B Double-channel oxygen lance |
| 11/14/2012 | CN102051531B High boron content austenite stainless steel and preparation method thereof |
| 11/14/2012 | CN102021494B Weather resistant thick steel plate and manufacturing method thereof |
| 11/14/2012 | CN101845532B Connecting mechanism adaptive to free movement of self-deformation member space |
| 11/08/2012 | WO2012149993A1 Reaction crucible for aluminothermic welding operations, having a refractory shutoff element |
| 11/08/2012 | WO2012114294A3 Tiltable oxygen converter |
| 11/07/2012 | CN202519290U Closed electric furnace capable of continuously charging on top of eccentric tapping side |
| 11/07/2012 | CN202519289U Pulse-enhanced metallic molten pool pulse gas agitator |
| 11/07/2012 | CN202519288U Automatic feeding shield of electric furnace |
| 11/07/2012 | CN202519287U Furnace door oxygen lance of low-power electric arc furnace |
| 11/07/2012 | CN202519286U Hoisting safety device for converter oxygen replacing gun electric hoist |
| 11/07/2012 | CN202519269U Device for producing metal member by electric steelmaking slag |
| 11/07/2012 | CN102766729A Low phosphor control method for high-speed axle steel |
| 11/07/2012 | CN102766726A Method for smelting stainless steel by high-chrome melt and dephosphorized pre-melt |
| 11/07/2012 | CN102766725A Thermal state utilization method of stainless steel continuous casting residue |
| 11/07/2012 | CN102766724A Method adopting oxygen lance to jet granulated powder limestone to make slag and steel in combined blown converter |
| 11/07/2012 | CN102766723A Limestone slagging steelmaking lance position control method for basic oxygen furnaces |
| 11/07/2012 | CN102766722A Method for smelting high-carbon steel from semi-steel |
| 11/07/2012 | CN102766721A Steelmaking furnace |
| 11/07/2012 | CN102268507B Method for smelting steel by using low-carbon or carbon-free molten iron |
| 11/07/2012 | CN102251070B Method for implementing efficient extraction of vanadium from converter through CO2 |
| 11/07/2012 | CN101760701B Alloy-plastic steel plate for die and production method thereof |
| 11/01/2012 | WO2012146466A1 Electric melting furnace |
| 11/01/2012 | WO2012145967A1 Rapid feeding device and method for feeding scrap steel into electrical furnace |
| 11/01/2012 | WO2012089188A3 Multiply secured coupling device for oxygen lances |
| 10/31/2012 | EP2516685A2 Control of the converter process by means of exhaust gas signals |
| 10/31/2012 | CN202509104U Electric arc furnace for metallurgy |
| 10/31/2012 | CN202509103U Furnace lining leakage detector for medium-frequency induction heating furnace |
| 10/31/2012 | CN202509102U Safety protection device for operations in flues of converters |
| 10/31/2012 | CN102758135A High-strength structural steel suitable for alpine regions and production method of high-strength structural steel |
| 10/31/2012 | CN102758051A Method for producing special steel through high-cleanness low-oxygen content process of rotating furnace |
| 10/31/2012 | CN102758050A Smelting process of automatic steelmaking system of medium and small-sized converter |
| 10/31/2012 | CN102758049A Construction method of oversize converter large span |
| 10/31/2012 | CN102286706B Martensitic stainless steel capable of resisting occlusal wear |
| 10/31/2012 | CN102220452B Method for duplex dephosphorization of intermediate frequency furnace and vacuum induction furnace |
| 10/31/2012 | CN102181601B Differential motion airtight feeding electric furnace smelting device and feeding method thereof |
| 10/31/2012 | CN102181588B Method for recycling refined casting residues during steelmaking in steel plant |
| 10/31/2012 | CN101613780B Converter body cooling method for disassembling converter by dry method |
| 10/30/2012 | US8298477 Lance holder |
| 10/30/2012 | US8298317 Ironmaking and steelmaking |
| 10/26/2012 | WO2012143774A1 Device to inject solid material into a bath of liquid metal, and corresponding method |
| 10/24/2012 | EP2513581A1 Electrode for direct current continuous arc furnace |
| 10/24/2012 | CN202499881U Changeable air brick |
| 10/24/2012 | CN202499880U Furnace opening of converter |
| 10/24/2012 | CN202499879U Auxiliary tool for masonry of converter |
| 10/24/2012 | CN202499878U Coal gas dehydrator capable of being quickly cleaned and overhauled |
| 10/24/2012 | CN202499877U Connection structure between evaporative cooling flue and rapid overflow cooling tower |
| 10/24/2012 | CN202499876U Primary dust removal system of converter |
| 10/24/2012 | CN102747187A Special smelting process of core rod steel |
| 10/24/2012 | CN102747186A Water cooling converter blanking drum |
| 10/24/2012 | CN102747185A Slag stopper for converter tapping |
| 10/24/2012 | CN102747184A Converter and water cooling converter mouth thereof |
| 10/24/2012 | CN102747183A Converter hood |
| 10/24/2012 | CN102747182A Method for producing high-carbon steel by applying high-carbon-catch single-slag method through 50t top blast converter |
| 10/24/2012 | CN102747181A Smelting method of 9Ni steel |
| 10/24/2012 | CN102747180A Method for controlling Ti inclusion in hypereutectoid steel |
| 10/24/2012 | CN102086481B Coal gas waste heat boiler |
| 10/24/2012 | CN102071277B Converter dephosphorizing and steelmaking method |
| 10/24/2012 | CN101864508B Steel making method of convertor with small slag quantity |
| 10/23/2012 | US8293038 Deep drawability, punch stretchability and ridging resistance; reduced amounts of C, N, Si, Mn, P and Ti for high workability; no defects such as ridging and roping |
| 10/23/2012 | US8291727 Apparatus for manufacturing ceramic microspheres for cementing applications |
| 10/18/2012 | WO2012141360A1 Apparatus for injecting hot air into an electric furnace |
| 10/18/2012 | WO2012139859A1 Method for operating an alternating-current electric arc furnace, device for performing the method, and alternating-current electric arc furnace having such a device |
| 10/18/2012 | WO2012139708A1 Method for operating an electric arc furnace |
| 10/18/2012 | WO2012089754A3 Method for the pyrometallurigical treatment of metals, molten metals, and/or slags |
| 10/17/2012 | EP2511638A1 Method for operating an electric arc oven, device for performing the method and an electric arc oven with such a device |
| 10/17/2012 | EP2510299A1 Molten metal-containing vessel and methods of producing same |
| 10/17/2012 | EP2510296A1 Device and method for feeding metal material into a melting plant |
| 10/17/2012 | CN202492539U Slag-stopping plug for converter tapping |
| 10/17/2012 | CN202492538U Elastically suspended and tensioned furnace body supporting structure |
| 10/17/2012 | CN202492537U Converter oxygen lance lifting device |
| 10/17/2012 | CN202492536U Built-in lance lifting fixed pulley device for oxygen lance of converter |
| 10/17/2012 | CN202492535U Elastic element |
| 10/17/2012 | CN202492534U Flexible sealing device for converter mouth and gas hood |
| 10/17/2012 | CN102741431A Tiltable converter having a pendulum bar suspension |
| 10/17/2012 | CN102732802A Boiler-steam-drum-use steel with thickness no lower than 80mm, and production method thereof |
| 10/17/2012 | CN102732683A Production method of ultra low-carbon low-oxygen steel |
| 10/17/2012 | CN102732676A Shortened-smelting-charging-sequence refining crystal material production process |
| 10/17/2012 | CN102732675A Furnace baking method for new intermediate frequency furnace |
| 10/17/2012 | CN102732674A Production method of heavy-gauge large-single-weight low-alloy high-strength structural steel plates |
| 10/17/2012 | CN102732673A Fast converter slide plate-locating slag-stopping and tapping device and its control method |
| 10/17/2012 | CN102732672A Sliding brick for converter sliding plate quick change slag-stopping tapping device |
| 10/17/2012 | CN102732671A Converter horizontal sliding plate method slag-stopping tapping device and control method thereof |
| 10/17/2012 | CN102732670A Recycling method for treating iron-bearing dust by utilizing carbonation process |
| 10/17/2012 | CN102732669A Auxiliary device for removal of dephosphorization residues in converter, and method for auxiliary removal of dephosphorization residues through air blowing |
| 10/17/2012 | CN102732668A Oxygen furnace steel method capable of improving jet velocity through preheated oxygen |
| 10/17/2012 | CN102732667A Method for controlling MnS inclusions in high-speed heavy rail steel |
| 10/17/2012 | CN102732666A Method for controlling non-metallic slag inclusion in medium and heavy plate of hydrogen-induced cracking resistance pipe line steel |
| 10/17/2012 | CN102732665A Method for adding nitrogen in molten steel in last phase of steel making |
| 10/17/2012 | CN101899627B Abrasion-resistant alloy cast steel and smelting and heat treatment processes |
| 10/17/2012 | CN101899607B Smelting technology of wear-resistant alloy cast steel and equipment system thereof |
| 10/16/2012 | CA2528055C Direct current arc furnace |
| 10/11/2012 | WO2012136698A1 Method for operating at least one supersonic nozzle in a metallurgical vessel, method for determining a pressure loss and system for determining operating parameters of at least one supersonic nozzle |