ABOUT

Bought scrap: The raw material of the electric steel-workers consists of bought scrap of various origins:
•    - Falls of the processing industries (in particular auto industry)
•    - Chips of milling
•    - Worn Consumer goods (apparatuses electric household appliances, cars put at breakage)
•    - Structural Steel coming from the demolition of buildings
•    - Metal Ashes of power stations of incineration, sorted with magnet etc
The quality of scrap used is determining for the grade of the steel manufactured. Indeed, the various impurities which they contain are likely to modify the characteristics of the finished products. One particularly supervises the content of copper, nickel, chromium and out of vanadium, insofar as these elements oxidize less easily than iron and cannot thus be flaring in the furnace by the lances with oxygen. It is supplied by the local market and international.

Arc furnace: A light-arc furnace is a type of electric furnace used out of metallurgy. It uses the thermal energy of the electric arc established between one (or several) electrode (S) of carbon and metal to obtain a temperature sufficient with its fusion. Of small or great capacity, it is mainly used for the production of molten steel (approximately 35% of the worldwide production) and also for the recycling of metals (for example to recover the zinc of dust and waste metallurgical).

In-ladle treatment: The refining of steel is done in an installation of vacuum out of tank, via intensive exchanges with the slag, a mixing homogenizing using an inert gas and a setting with fine nuance of steel. On the metallurgical level, this treatment makes it possible to obtain the lowest sulfur contents, to eliminate hydrogen, to reduce and/or combine nitrogen, to reduce the percentages of carbon to the minimum, to obtain an excellent degree of purity in nonmetal elements as well as a precise adjustment of the temperature of the bath to optimize the process of cast which follows.

Continuous casting: Our rolling mill supply is ensured by vertical installations of continuous casting. The passage to horizontal is done only after complete solidification. Blooms are then cut to the definite lengths. Continuous casting: Our rolling mill supply is ensured by vertical installations of continuous casting. The passage to horizontal is done only after complete solidification. Blooms are then cut to the definite lengths.

Billet: A bloom or billet is an iron and steel semi-finished product. It is a steel bar of square or rectangular section higher than a square of 120 mm (160 mm in certain steelmakers), variable length intended to be committed in roll trains called finishing trains.

Rolling mill: Industrial tools intended to roll a metallurgical product by passage between two cylinders of axes parallel and turning in opposite directions. Rolling thus consists in subjecting to a metallurgical product (billet) a permanent deformation by passage in a rolling mill.

Steel-works: Product the billet, raw material of the rolling mills. It is equipped with an electric furnace of 120 tons for fusion, with a refining furnace for the setting with metallurgical nuance and with a continuous casting of solidification of steel with five lines.

Station of water treatment: Supplied with an opposite unit of osmosis, it makes it possible to improve quality and to reduce the water supplements intended for the coolant circuits of the steel-works.

Lags: Solid rejections of the electric furnace. The latter are stored in a discharge controlled in the environmental rules. Studies are led to develop the whole of this waste by developing new niches, in fact the use of slag’s in the construction of the roads, the recovery of the zinc contained in dust or the valorization of the iron contained in calamine.

Refractories: The refractory products are placed in the furnace for their quality in coating of protection. Very much used out of steel-works and in the fields where the reduction of the losses of heat is priority. 

Oxygen station: The steel-works have a unit of supply oxygen, connected to the building of fusion. Oxygen has for principal function to homogenize molten steel and to help with its combustion in the furnace.