Patents
Sitemap › C21 - Metallurgy of iron › C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; Treatment in molten state of ferrous alloys › C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups
Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430)
04/2014
04/23/2014CN103740881A Desulfurization spray gun with multiple reinforcing tubes
04/23/2014CN103740869A Process for making high-phosphor slag steel
04/23/2014CN103088186B Slag-making method for rapid dephosphorization of semisteel
04/23/2014CN102864376B High-strength full-thread equal-strong resin bolting reinforcing bar and production method thereof
04/23/2014CN101857938B High-silicon and medium-chromium grinding ball and secondary metamorphic processing technique thereof
04/17/2014WO2014058157A1 Impellor and melt-pool processing method using same
04/16/2014CN203546073U Circulating tube for lower groove of vacuum finery furnace
04/16/2014CN203546072U Lower tank for vacuum refining furnace with long service life
04/16/2014CN203546071U Multi-functional nitrogen-oxygen-argon desulfurization gun
04/16/2014CN203546070U Desulfurization spray gun
04/16/2014CN103725956A High-strength light-weight steel for dumper compartment and production method of steel
04/16/2014CN103725827A Efficient degassing device and process for molded steel production
04/16/2014CN103725826A Steel ladle modifier
04/16/2014CN103725825A Aluminum industrial red mud-based dephosphorizing agent for converter steelmaking and preparation method thereof
04/16/2014CN103725824A Dephosphorization process
04/16/2014CN103725823A Wire feeding machine gear and manufacture method
04/16/2014CN102899455B Argon-oxygen furnace and operation method thereof
04/16/2014CN102816893B External desulfurization method of acid induction furnace
04/16/2014CN102703832B Forging process for thermal power rotor
04/16/2014CN102703817B Free-machining pinion steel and production technique thereof
04/16/2014CN102703816B High-carbon low-alloy wear-resistant ball steel and production process thereof
04/16/2014CN102453786B Method for smelting steel for drill rod joint by using rotating furnace, and steel for drill rod joint
04/16/2014CN102382946B Slag collecting agent and preparation method thereof
04/10/2014US20140096648 Method for controlling a-shaped segregation by purification of liquid steel
04/10/2014US20140096643 Molten steel desulfurization method, molten steel secondary refining method, and molten steel manufacturing method
04/09/2014EP2714943A1 Process for producing clean steels and clean steel produced thereby
04/09/2014CN203530361U Molten steel or molten iron argon blowing protection pouring device of induction furnace
04/09/2014CN103712450A Online thermal state repairing machine for RH vacuum tank
04/09/2014CN103710645A 3Cr17NiMo die steel easy to chip and preparation method of steel
04/09/2014CN103710611A Short process casting alterant
04/09/2014CN103710583A Magnesium-alumium-iron alloy for desulfurizing and deoxidizing agent and preparation method thereof
04/09/2014CN103710490A Method for adding refining denaturant in 3Cr2MnMoS die steel
04/09/2014CN103710489A Method for refining high-speed steel by adopting 6t vacuum refining furnace
04/09/2014CN103710488A Method for preparing Al-Si-Fe alloy by using high-ferrum and high-silicon bauxite
04/09/2014CN103710487A Method for cooling molten iron by using converter fly ash
04/09/2014CN103710484A Silicon recycling method for controlling casting residue to be recycled to low-silicon steel
04/09/2014CN102978344B RH vacuum chamber baking system
04/09/2014CN102808067B Refining method for producing low alloy steel by refining and slagging of bauxite in LF (Ladle Furnace)
04/09/2014CN102586544B High-calcium pre-molten slag modification aluminium slag ball and preparation method thereof
04/02/2014EP2712938A1 Lance for top injection in metallurgical vessels and method for the production of said lance
04/02/2014EP2712937A1 Cooled lance for injecting into a metallurgical vessel
04/02/2014CN203513763U Vanadium-nitrogen alloy balling device
04/02/2014CN203513725U Cooling device for downcomer of RH refining furnace in steel mill
04/02/2014CN203513724U Full-automatic molten steel oxygen determination system of steel mill argon blowing station
04/02/2014CN203513723U Magnesia-calcium brick for argon oxygen decarburization (AOD) furnace
04/02/2014CN103695884A Passivating metal magnesium particles and passivating method thereof
04/02/2014CN103695805A High strength and high wear-resistance stainless steel wire and preparation method thereof
04/02/2014CN103695793A Large-sized non-quenched and tempered steel and smelting method thereof
04/02/2014CN103695792A High carbon alloy steel wear-resistance valve material and preparation method thereof
04/02/2014CN103695785A Steel for low-temperature and high-pressure pipeline connector and manufacturing method of continuous casting round billet thereof
04/02/2014CN103695779A Steel plate made of high-rise building steel Q345EZ25 and production method thereof
04/02/2014CN103695775A 345MPa-level steel plate for high-rise building structure and production method thereof
04/02/2014CN103695724A Preparation process of aluminum iron alloy wire
04/02/2014CN103695604A Method of degassing molten metal
04/02/2014CN103695603A Oxygen blowing chronograph
04/02/2014CN103695602A Furnace cover of refining furnace
04/02/2014CN103695601A Processing method of molten steel used for checkered plate smelted in converter
04/02/2014CN103695600A Low-cost production method of boracic low-alloy-structured steel sheet billet
04/02/2014CN103695599A Low-alloy steel CBM20 microalloying method
04/02/2014CN103695598A Automatic wire feeding control device
04/02/2014CN103695597A Molten steel calcium treatment process adopting pure calcium line
04/02/2014CN103695596A Recycling method for producing silicomanganese alloy and medium and low carbon ferromanganese
04/02/2014CN103695589A Method for removing titanium in molten iron
04/02/2014CN103691928A Telescopic adjustable slag raking plate
04/02/2014CN103691925A Integral slight-decarbonizing ladle for production of low-carbon manganese-silicon alloy
04/02/2014CN103691913A Manufacture method of 1Mn18Cr18N hollow ingots
04/02/2014CN103691880A Casting method for planet carrier of wind power steel casting
04/02/2014CN103691879A Casting process of steel casting of petroleum machinery blowout preventer
04/02/2014CN103060512B Dephosphorizing and steelmaking method of medium-high-phosphorous semisteel by top-blown converter
04/02/2014CN103031410B Method for treating desulfuration residue by preparing efficient blocker with waste materials of steelmaking
04/02/2014CN103014242B Smelting slagging agent and smelting slagging method adopting AOD (Argon Oxygen Decarburization) double slag process
04/02/2014CN102965466B Technology for improving slag pouring quantity of converter in stage of dephosphorization
04/02/2014CN102954693B Method for constructing bottom groove circulating pipe of vacuum-circulating degassing furnace
04/02/2014CN102796938B Method for increasing vanadium content of molten steel
04/02/2014CN102766730B Method for on-line prediction of total decarbonization amount of molten steel in circulating vacuum degassing method
04/02/2014CN102758144B Production method for steel ingot of large-sized high-nitrogen retaining ring steel
04/02/2014CN102719728B Technique for producing anti-acid pipeline steel by RH-LF-VD refining
04/02/2014CN102719593B Method for smelting ultra-low carbon steel
04/02/2014CN102564156B Production method capable of prolonging service life of KR (Krypton) stirrer
04/02/2014CN102417950B Seamless calcium line and preparation method thereof
04/02/2014CN102409228B High-strength high-carbon steel wire rod and production method thereof
04/02/2014CN102399941B Calcium aluminate for desulfurization of ultralow titanium and carbon steel and preparation method thereof
04/02/2014CN102312049B Desulfurizing agent suitable for high-aluminum silicon steel and preparation method thereof
03/2014
03/27/2014WO2014045829A1 Thick steel sheet having excellent welding heat-affected part toughness
03/26/2014CN203501825U Finery slag removal machine
03/26/2014CN203498412U Silicon manganese nitride cored wire for nitrogen addition of vanadium microalloyed steel
03/26/2014CN203495209U On-line tank tilting system based on molten iron desulfuration line
03/26/2014CN203495158U Outlet hopper filtering molten steel flowing out of tanks
03/26/2014CN103667999A Wear-resisting alloy steel for mine breaking hammer and preparation method of wear-resisting alloy steel
03/26/2014CN103667997A Refractory steel material for pump valves and preparation method thereof
03/26/2014CN103667986A Anti-aging alloy steel material for valves and preparation method thereof
03/26/2014CN103667984A Chromium-nickel biphase stainless steel material for pump valves and preparation method thereof
03/26/2014CN103667981A Alloy steel material for ball mill lining boards and preparation method thereof
03/26/2014CN103667980A Alloy steel material for high-speed bearings and preparation method thereof
03/26/2014CN103667972A Special abrasion-resistant alloy material and preparation method thereof
03/26/2014CN103667971A Seawater-corrosion-resistant alloy steel material for pump valves and preparation method thereof
03/26/2014CN103667970A High-heat-strength high-carbon steel material and preparation method thereof
03/26/2014CN103667962A Wear-resistant alloy steel material for centrifugal pump blades and preparation method thereof
03/26/2014CN103667961A Corrosion-resistant wear-resistant alloy steel material for pump valves and preparation method thereof
03/26/2014CN103667952A Production process of weather-resistant steel
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