| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
|---|
| 06/01/1988 | EP0269465A1 Process for the continuous melting of scrap in a DC-arc furnace, and DC-arc furnace for performing said process |
| 06/01/1988 | EP0269273A1 Micro mill continuous steel process |
| 06/01/1988 | EP0268606A1 Method and device for pre-heating waste metal for furnaces. |
| 05/31/1988 | US4747985 Wear resistance |
| 05/31/1988 | US4747582 Manipulator at furnaces |
| 05/24/1988 | US4746361 Controlling dissolved oxygen content in molten steel |
| 05/24/1988 | US4746103 Lance for blow-refinement in converter |
| 05/24/1988 | CA1236979A1 Rapid decarburization steelmaking process |
| 05/19/1988 | WO1988003741A1 Induction plasma installation |
| 05/18/1988 | EP0267609A1 Production of steels containing low melting point metals |
| 05/17/1988 | US4744875 Steel refining with an electrochemical cell |
| 05/17/1988 | US4744822 Dephosphorization, desulfurization and desilation melts |
| 05/17/1988 | US4744546 Flushing arrangement for a metallurgical vessel |
| 05/17/1988 | US4744544 Refractory erosion visual indicator |
| 05/11/1988 | EP0266975A1 Smelting reduction |
| 05/11/1988 | CN87208616U Secondary burning oxygen gun |
| 05/11/1988 | CN87106488A Plant to convert a metallic charge into semifinished products and connected smelting and casting method |
| 05/10/1988 | US4742715 Apparatus for the manipulation of probes |
| 05/05/1988 | DE3637533A1 Blowing lance suitable for scavenging with solid material |
| 05/05/1988 | DE3637065A1 Ladle with heating device |
| 05/04/1988 | EP0266055A1 Improvements in or relating to closures for metallurgical vessel pouring apertures |
| 05/04/1988 | CN87201674U Oxygen gun without sticking steel slag |
| 05/03/1988 | US4741772 Si contained ferroalloy addition as a weak pre-deoxidation process in steelmaking |
| 05/03/1988 | US4741515 Apparatus for introducing gas into a metallurgical vessel |
| 05/03/1988 | CA1235905A1 Method for continuous steelmaking |
| 04/27/1988 | EP0265038A1 Method of making steel |
| 04/26/1988 | US4740989 Plant for producing steel from scrap |
| 04/26/1988 | US4740242 Method for transferring heat to molten metal, and apparatus therefor |
| 04/26/1988 | US4740241 For simultaneously introducing a refining agent and bubbling gas through molten metal |
| 04/26/1988 | CA1235771A1 Apparatus for determining the presence of a metallic melt in a passage channel of a metallurgical furnace or of a casting ladle |
| 04/26/1988 | CA1235570A1 Apparatus for automatically charging scrap into arc furnace |
| 04/21/1988 | WO1988002786A1 Tuyere for torch guniting of metallurgical plant |
| 04/20/1988 | EP0263979A1 Installation for lining the inner wall of a vessel |
| 04/20/1988 | CN86106699A Process for vanadium residue |
| 04/14/1988 | DE3711528A1 Refining and degassing molten steel |
| 04/12/1988 | CA1235148A1 Method for the manufacture of a magnesia-carbon brick, and a converter having a wear lining at least partly of such bricks |
| 04/12/1988 | CA1234989A1 Process for refining hot metal |
| 04/06/1988 | EP0262706A1 Plant to convert a metallic charge into semifinished products, and connected smelting and casting method |
| 04/06/1988 | CN86106459A Gas-cleaning device of melting metal container |
| 04/05/1988 | US4736383 Method for melting scrap or other materials and apparatus for implementing the method |
| 04/05/1988 | US4735400 Plug for a refining apparatus |
| 04/05/1988 | US4735398 Method of improving the service life of permeable refractory elements in bottoms of metallurgical vessels |
| 03/30/1988 | EP0261365A1 Immersion lance |
| 03/29/1988 | US4734551 Method and apparatus for heating molten steel utilizing a plasma arc torch |
| 03/29/1988 | US4733853 Molten metal taphole design to improve yield and cleanliness |
| 03/29/1988 | CA1234489A1 Liquid-cooled lance for blowing oxygen onto a steel bath and method of operating the lance |
| 03/29/1988 | CA1234488A1 Solide particle accelerator |
| 03/29/1988 | CA1234486A1 Metallurgical vessel, more particularly an interchangeable steel plant converter |
| 03/23/1988 | EP0260735A1 Stopper for a tap hole of a steel converter and method of operating a converter |
| 03/22/1988 | US4732607 Oxygen gas blowing |
| 03/22/1988 | US4732478 Process for determining, by optical emission spectrometry, the content in a steel of an element such as aluminum, in the dissolved state and in the precipitated state |
| 03/22/1988 | US4732370 Steelmaking lance assembly |
| 03/17/1988 | DE3629997A1 Method of operating a metallurgical vessel |
| 03/15/1988 | US4730814 Blast pipe for refining nozzle |
| 03/15/1988 | US4730813 Oxygen nozzle for metal refining |
| 03/15/1988 | US4730784 For refining metals/ferroalloys by oxygen blasting from above the melt |
| 03/10/1988 | WO1988001721A1 A blast pipe, preferably for use in metallurgical processes |
| 03/09/1988 | EP0258929A1 Oxygen steelmaking plant having a sublance installation |
| 03/08/1988 | US4730338 Coupling construction for an electric furnace |
| 03/08/1988 | US4730337 Method and apparatus for operating a direct-current arc furnace |
| 03/08/1988 | US4730336 Oxy-fuel burner system |
| 03/08/1988 | US4729548 Refractory coating for metal |
| 03/08/1988 | CA1233646A1 Metal purification process by insufflation |
| 03/03/1988 | DE3725843A1 Tiltable converter |
| 03/02/1988 | EP0258208A1 Iron and steel plant and process for its operation |
| 03/02/1988 | EP0258101A1 Process for melting scrap, and electric furnace for performing the process |
| 03/02/1988 | EP0257450A2 Process for the increased input of energy to electric-arc furnaces |
| 03/02/1988 | EP0257173A1 Metallurgical plant and method of operating the same |
| 03/02/1988 | EP0257172A1 Metallurgical plant and method of operating the same |
| 02/25/1988 | DE3628185A1 Immersion lance |
| 02/24/1988 | EP0256138A1 System for scrubbing gas used for preheating of scrap for steelmaking |
| 02/23/1988 | US4726839 Process and an arrangement for the production of steel from sponge iron |
| 02/23/1988 | CA1233021A1 Mounting for heated vessels, more particularly for tiltable, steel-plant converters |
| 02/17/1988 | CN87104689A Improvements in nozzles for injecting substances into liquids |
| 02/16/1988 | US4726033 Process to improve electric arc furnace steelmaking by bottom gas injection |
| 02/16/1988 | US4725047 Device for introducing gas into molten metal |
| 02/16/1988 | US4725045 Slag-retaining plug for metal pouring operations |
| 02/16/1988 | CA1232933A1 Conductive bottom for direct current electric arc furnaces |
| 02/16/1988 | CA1232754A1 Method of removal of impure gasses from scrap preheating and equipment for use of same |
| 02/11/1988 | DE3640983C1 Lance device for metallurgical vessels, in particular converters |
| 02/10/1988 | EP0255793A1 Electrical direct current furnace for the fusion of iron scrap |
| 02/10/1988 | CN86207587U Multi-jet gun with three channels for steel-smelting device |
| 02/09/1988 | US4723762 Apparatus for sealing the skirt of a converter waste gas recovery system |
| 02/09/1988 | CA1232458A1 Multistage process for preparing ferroboron |
| 02/03/1988 | EP0255106A2 Process for the production of corrosion-resistant steels and castings |
| 01/27/1988 | EP0254669A1 Metallurgical vessel with tilting trunnion especially steel converter |
| 01/19/1988 | US4720837 Ladle furnace |
| 01/19/1988 | US4720226 Automated apparatus for lining the inner wall of a vessel with bricks |
| 01/19/1988 | CA1231533A1 Method of producing steels of great purity and low gas content in steel mills and steel foundries, and apparatus therefor |
| 01/14/1988 | WO1988000247A1 Improvements in nozzles for injecting substances into liquids |
| 01/14/1988 | WO1988000246A1 Improvements in apparatus for injecting substances into liquids |
| 01/14/1988 | WO1988000245A1 Tuyere for torch guniting of metallurgical plant |
| 01/13/1988 | EP0252684A1 Improvements in nozzles for injecting substances into liquids |
| 01/13/1988 | EP0252621A2 Protection of graphite electrodes |
| 01/13/1988 | EP0252308A1 Process for treating metal melts and installation for performing the method |
| 01/13/1988 | CN87104829A Improvements in apparatus for injecting substances into liquids |
| 01/12/1988 | US4718645 Ladle stand arrangement for treating molten metal |
| 01/12/1988 | US4718644 Slag sensor taphole assembly |
| 01/07/1988 | EP0251604A1 Improvements in apparatus for injecting substances into liquids |
| 01/07/1988 | EP0250696A1 Apparatus for feeding and/or carrying-off fluids to respectively from a converter |