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MELTING

Installed in 1990 ELG Carrs Stainless Steels melting facilities include the latest 2.5MW 5 Tonne Variable Induction Power High Frequency melting furnace coupled with a Vacuum Oxygen Blowing Secondary Steel-making facility.

Carrs operate a modern 2.5 Megawatt 5 Tonne Variable Induction Power, High Frequency Melting Furnace with the ability to produce 11 Tonne melts when required.

Carrs melting is coupled with a secondary treatment operation consisting of a Vacuum Oxygen Decarburisation and Vacuum Degassing facility. High Quality Ladle Metallurgy including Argon purging means that Carbon levels down to 0.020% can be achieved. This technology along with the very latest ‘Clean Steel´ practices achieves a high level of material cleanliness. Hydrogen is controlled to a very low level typically 2ppm

Melting is carried out in a 5 tonne high frequency furnace rated at 2.5 megawatt, followed by processing at the ladle station equipped with vacuum degassing, argon purging and oxygen lancing under vacuum facilities.

For each cast a furnace “cast sheet” is raised, giving required details for the material, which is completed with the melt and analysis details as production proceeds.

Primary melting is carried out using blended charges from our parent company ELG Haniel Metals Ltd. After melting the material is analysed and alloy additions made to adjust the composition to that required for secondary processing. A computer linked to the optical emission spectrometer carries out all alloy addition calculations automatically. After alloy addition, the temperature is adjusted, and the steel is poured into a pre-heated ladle for further processing

Following the vacuum degassing treatment, the material is poured from the ladle and teemed into one of the 47 different combinations of ingot mould set up. The ingot mould set up is determined by customer requirements or size of bar that is required.