C21C 5/28

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9499755 Composite briquette for steelmaking or ironmaking furnace chargeAug 29, 14Nov 22, 16Not available
9187793 Process for making low and specified hardenability structural steelDec 31, 10Nov 17, 15Not available
9156090 Method of manufacturing iron-based powderSep 15, 11Oct 13, 15POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY,
8771400 Method for manufacturing molten ironMay 14, 10Jul 08, 14ISTC CO., LTD.
8747518 Method for foamed slag generation of a non-corrosive melt in a converterJan 05, 11Jun 10, 14SMS SIEMAG AKTIENGESELLSCHAFT
8262767 Method of producing steel for steel pipe excellent in sour-resistance performanceMay 09, 11Sep 11, 12SUMITOMO METAL INDUSTRIES, LTD.
8021599 Method and installation for producing steel products with optimum surface qualityFeb 13, 09Sep 20, 11SMS SIEMAG AKTIENGESELLSCHAFT
7998237 Method and installation for the production of steel products having an optimum surface qualityMay 25, 04Aug 16, 11SMS SIEMAG AKTIENGESELLSCHAFT
7959709 Method of producing steel for steel pipe excellent in sour-resistance performanceDec 02, 09Jun 14, 11SUMITOMO METAL INDUSTRIES, LTD.
7641713 Method for reducing Cr in metallurgical slags containing CrMay 18, 05Jan 05, 10HOLCIM TECHNOLOGY LTD
6197086 System and method for minimizing slag carryover during the production of steelOct 08, 99Mar 06, 01ISG TECHNOLOGIES, INC.
6129888 System and method for minimizing slag carryover during the taping of a BOF converter in the production of steelAug 20, 99Oct 10, 00ISG TECHNOLOGIES, INC.
5968227 System and method for minimizing slag carryover during the tapping of a BOF converter in the production of steelNov 13, 97Oct 19, 99ISG TECHNOLOGIES, INC.
5916512 Method and apparatus for after-burning the combustible components of the atmosphere in metallurgical smelting vesselsMar 27, 98Jun 29, 99AIR PRODUCTS AND CHEMICALS, INC.
5853453 Method of processing iron-containing mettalurgical residual substances as well as arrangement for carrying out said methodDec 30, 96Dec 29, 98VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH & CO.
5817164 Method and apparatus for making feedstock for steel makingMar 12, 96Oct 06, 98Aktsionernoe Obschestvo Zakrytogo TIPA "Intermet-Service & Co."
5514331 Method and device for producing stainless steelOct 24, 94May 07, 96Outokumpu Steel Oy
5411570 Steelmaking processJun 13, 94May 02, 95ALLOYSTREAM HOLDINGS (PROPRIETARY) LIMITED
5378261 Method for producing steelMay 26, 93Jan 03, 95ZapTech Corporation
4880212 Device for detecting the level of the slag in a metal poolJul 26, 88Nov 14, 89Geotronics Metaltech AB

Showing 1 to 20 of 25 results