Grinding imperfections from billets
The sound of grinding imperfections from a billet. Grinding to remove surface defects from billets after thermal treatment, which leaves microscopic cracks…
Technical Museum of Slovenia
Billet descaling
The sound of a billet being descaled. Shot blasting machines are used for descaling billets in readiness for the next operation, which…
Rolling stand arrangement
The sound of arranging the rolling stand. The rolling stand is arranged for the rolling of various profiles (round, flat or square…
Air hardening (fans)
The sound of steel hardening using a forced-air quench (fans). Certain alloys harden fully if cooled by air of a temperature above…
Air hardening (pilgrim rolling)
The sound of steel hardening after pilgrim rolling. After the termination of pilgrim rolling, certain alloys have to be air-cooled in steps…
Cutting steel
The sound of cutting steel. This machine for cutting steel bars of different profiles and dimensions is manufactured by the German company…
Crane
The sound of a bridge crane. A bridge (overhead) crane is used to handle heavy loads in the plant. The loads are…
Two-chain conveyor – in operation
The sound of a two-chain conveyor operating in the mine. It was used for the conveying of coal extracted from the coalface…
Water draining through the rock
The sound of water percolating through the bed rock into the mine galleries. A number of mine structures (such as pits, shafts…
Wardrobe chain – lowering and raising
The sound of a wardrobe chain lowering and raising in pithead baths in a coalmine. A peculiarity of this mine are the…
Pneumatic pick hammer
The sound of a pneumatic pick hammer hacking into the coalface. It was manufactured by Ravne Ironworks in 2005. It is used…
Pneumatic drill
The sound of a pneumatic drill in operation. It was manufactured by Ravne Ironworks in 2005. It is used to drill relatively…
Battery locomotive – moving
The sound of a battery locomotive in motion. The train is used in the transportation of miners in and out of the…
Telephone – ringing
The sound of a telephone located near the coalface. It was manufactured by Tevel, Teve Varnost, Zagorje, Slovenia, in 1990. The long…
Submersible pump
The sound of a submersible pump in operation in a coalmine. It is a Bibi 3 model pump manufactured by Flyft, USA,…
Ventilation fan
The sound of a rotating ventilation fan in operation. It was manufactured by Tevel, Teve Varnost Elektronika, Zagorje, Slovenia, in 1997. It…