The present invention relates to a composition for external desulphurization of hot metal for producing low sulphur steel. More particularly, the present invention relates to the desulphurizing composition which comprises CaC2, CaF2,SiO2, Al2O3, CaO, Fe2O3, Fixed carbon, volatile matter etc in particular ratio. Mor...

The present invention relates to an improved compound for desulphurization of hot metal. More particularly, the present invention relates to the improved method of desulphurization of hot metal by using carbide based compound (composition) and magnesium in optimum -ratio to avoid the demerits of using magnesium a...

The present invention relates to a slag fluidizer composition. More particularly, the present invention relates to the slag fluidizer composition which comprises SiO2, Al2O3, CaO, Fe2O3 etc in particular ratio. Moreover this invention relates to the slag fluidizer composition which improves slag raking efficiency...

The invention relates to an improved system for external desulphurization of hot metal for < 60 tons capacity ladle, comprising a correspondingly modified storage silo for receiving DS-compound conveyed from a cargo-carrying truck; an injection dispenser vessel (ID vessel) modified in registration of the modificatio...

According to this invention, a process has been developed for producing low phosphorus steel comprising: (a)adding scrap and other material to the induction furnace, (b)heating the charge and adding dephosphorising compound (c)adding dephosphorising compound and fluidizer to the total charger once it melts, (d...

A process for producing low sulphur Fe base metal and steel comprising: Preparing Fe base charge melting 60 %- 75 % of Fe base charge subjecting the melt to a temperature range to more than 1380 ° C adding desulphurising compound. (JCADF3) batch wise & melt down balance 25 % - 40 % charge raking out slag as mu...

The present invention relates to a composition used for de oxidation of steel. More particularly, the present invention relates to the deoxidizing composition which comprises SiO2, A12O3, CaO, Fe2O3 etc in particular ratio. Moreover this invention relates to the deoxidizing deoxidizer composition which removes oxyge...

Abstract According to the invention, primary object is achieved when such a compound is prepared with calcium carbide having below mentioned composition: CaC2: 10-30 %; Slag Conditioner: 2-8% ; Volatile Matter: 2-6% ; CaO: 56-86%, and delivers the performance with respect to success rate, metal loss, cycle time co...

ABSTRACT An efficient reagent for reducing phosphorus in molten steel during induction furnace steelmaking According to this invention a reagent has been developed for producing low phosphorous steel comprising: a) Adding scrap and other material to the induction furnace b) Heating the charge and adding dephosph...

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The present invention relates to a development of novel compound “CAD9FC” used in external desulphurization of hot metal for producing low sulphur steel. More particularly, the present invention relates to the method of desulphurization of hot metal for reducing sulphur of hot metal in Ladle before steel making proc...

The present invention relates to a cored wire injection process in steel bath with an improvement in the yield / recovery of calcium. In particular, it relates to the dimension of the cored Wire and its injection speed in liquid steel bath to inject additives like fluxes, mainly calcium bearing material and alloyi...

The present invention relates to Desulphurization of hot metal (HMDS). In particular, it relates to the development of an alternate material, other than Magnesium (Mg), to carry out deoxidation function in hot metal during HMDS process. ? The alternate material developed in this invention is Calcium Silicide (CaSi)...

Abstract This invention relates to the desulphurization of hot metal and in particular, this invention relates to the desulphurization of hot metal wherein Aluminum Powder is used as agent. More particularly, this present invention relates to the desulphurization of hot metal wherein the hot metal should contain ve...

The present invention relates to Desulphurization (DS) of hot metal through KR-process In particular, it relates to the development of a reagent which will generate a fluid slag during desulphurization process in KR by breaking network of silicate layer usually forms with lime This invention also relates to the imp...

The present invention relates to increasing efficiency of pure calcium cored wire by delaying its melting The cored wire consists of an extruded calcium bar/rod and an intermediate layer between extruded bar and the outer sheath which comprises of a material which will act as an thermal insulator ...

The present invention relates to killing of oxygen in steel during tapping from primary steelmaking furnace In particular, it relates to the development of a reagent which will partially or fully replace aluminium, which is added in the form of ingot, notch bar etc. during tapping and during subsequent processing ...

A Cored Wire is a continuous steel tube filled with a calcium bearing material and is used in secondary treatment of steels. The major functions of cored wire are modification of inclusion morphology, deoxidation & desulphurization. Cored wire is injected into the ladle through wire feeder and it is capable of fee...

Dephosphorisation compound for producing Mild Steel in Induction Furnace with Basic Refractory Lining According to this invention a reagent has been developed for producing low phosphorous steel comprising: a) Adding scrap and other material to the induction furnace b) Heating the charge and adding dephosphorisi...

"Innovative use of two or more steel strips of same or different thickness in cored wire manufacturing" Steel making is essentially an oxidation process where the impurities of molten metal are preferentially oxidized to join the slag along with fluxes. The major challenge to steel makers is to reduce oxygen and ...

A cored wire is a continuous steel tube filled with either a calcium bearing material or a ferroalloy material. The development of calcium bearing material like calcium-silicide, calcium-iron, pure calcium cored wire etc. have enabled steel plant operators to introduce calcium efficiently in steel bath. CaSi powder...

Steel making is essentially an oxidation process where the impurities of molten metal are preferentially oxidized to join the slag along with fluxes. However, some oxide inclusions eventually remain in the liquid steel and generate defects in the final products. The use of calcium is beneficial to avoid such problem...

ABSTRACT A holder assembly (100) for supporting a flange (200) of a winding machine is disclosed. The holder assembly (100) includes a base frame (1). The base frame (1) includes a plurality of load bearing beams (2) for evenly distributing the entire load of the flange of the winding machine. Further, a beam (3...

TITLE: “A COLLAPSIBLE PACKAGING ASSEMBLY FOR SECURING A METALLURGICAL CORED WIRE COIL” ABSTRACT A collapsible packaging assembly for securing a metallurgical cored wire coil is disclosed. The collapsible packaging assembly includes of a base pallet comprising a plurality of load bearing beams, a frame which i...

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“INNOVATIVE REAGENT FOR DEEP INJECTION HOT METAL DESULPHURISATION PROCESS USING SODA GLASS AS SLAG FLUIDIZER” ABSTRACT The present disclosure provides a desulphurization reagent comprising desulphurizing compound and soda glass, optionally along with a slag fluidizer and/or bath agitator. Corresponding method ...

The present disclosure relates to an apparatus for carrying out simultaneous scrapping and straightening of calcium wire to obtain scrapped and straightened calcium wire having uniform diameter throughout the length of the calcium wire. The disclosure also relates to a method for simultaneously scrapping and straigh...

ABSTRACT The present disclosure provides a desulphurization reagent comprising desulphurizing compound(s) and Gilsonite, optionally along with a slag conditioner and/or coal. Corresponding method of preparation, and process or use of said reagent in desulphurization of hot metal (HMDS) during steel production are a...

“AN INNOVATIVE REAGENT FOR DE-OXIDATION OF STEEL DURING TAPPING AND PROCESSING IN TRANSFER LADLE” ABSTRACT The present disclosure provides a deoxidizing reagent for killing/removing oxygen in steel during tapping from primary steelmaking furnace, said reagent comprising calcium carbide, aluminium, aluminium ba...

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The present disclosure provides a desulphurization reagent comprising about 12-18% w/w of CaSi, about 4-8% w/w of slag conditioner and about 1-5% w/w of melt agitator or gassifying agent optionally along with further components such as but 10 not limited to calcium bearing compound(s), flow aid(s) and deoxidizer(s)....

The present invention relates to an improved compound for desulphurization of hot metal. More particularly, the present invention relates to the improved method of desulphurization of hot metal by using carbide based compound(composition) and Silicon Oil in optimum ratio to avoid the demerits of using Lime alone as ...

“DESULPHURIZATION REAGENT AND PROCESSES THEREOF” The present disclosure provides a desulphurization reagent comprising calcium carbide, aluminium and alumina. Said reagent of the present disclosure facilitates removal/5 reduction of sulphur from liquid steel, particularly, aluminium killed steel. Corresponding pr...

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“A CORED WIRE FOR A METALLURGICAL TREATMENT OF MOLTEN METAL AND A MANUFACURING METHOD THEREOF” ABSTRACT Present disclosure discloses a cored wire (100) for metallurgical treatment of a molten metal is disclosed. The cored wire comprises an outer sheath (1), powder of iron or any other suitable additives and a ca...

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ABSTRACT A REAGENT FOR HOT METAL DESULPHURIZATION, PROCESS OF PREPARING THE REAGENT AND APPLICATIONS THEREOF The present disclosure generally relates to the field of metallurgy and is particularly relevant to the 5 process of steel making. Particularly, the present disclosure relates to a hot metal desulphurizatio...

Hot metal desulphurization reagent, process of preparation and applications thereof The present disclosure provides a composition comprising a desulfurization reagent comprising CaSi, which reduces or partially replaces the amount of conventionally used calcium carbide. The present disclosure also provides a safe...

ABSTRACT ALUMINIUM BASED DESULPHURIZATION REAGENT, PROCESS OF PREPARATION AND APPLICATIONS THEREOF The present disclosure generally relates to the field of metallurgy and is particularly 5 relevant to the process of steel making. Particularly, the present disclosure relates to partially or fully replacing the deox...

ABSTRACT “Synthetic Slag Compositions for Steel Making and Methods thereof” The present disclosure provides a synthetic slag composition for steel making. The synthetic slag composition of the present disclosure comprises about 40-80 wt% silica (SiO2) and about 3-20 wt% alkali metal ions. In some embodiments, the ...