The production process of this factory is divided into three main sections: production of main pipes through Up Cast, reduction of pipe diameter to the desired level with drawing and forming machines and annealing of the final product with bright annealing furnaces.
– Melting and Foundry:
In this method, tube production is started by molding through Up Cast furnaces. First, the cathode class A, together with phosphorous bronze, is melted in a 9-ton inductive furnace and, after obtaining the desired alloy, is transferred to a molten, 7-ton holding furnace. Then, through up-casting molding, the main pipes of sizes 38/33 and 52/47 (OD / ID) are directly molded and transferred to special baskets.
– Secondary drawing:(Rotary Block)
The drawn tubes of the old section are transferred to two rotary block machines, the last dimension. The difference between this machine and the main drafting machine lies in the drawing times that allow us to produce 4-30 millimeters in diameter. These machines are also made of Austrian ASMAG.
– Level Winder
After dimensioning, the tubes to be sold are sent to the level windings. In this section, the tube passes through the Eddy Current apparatus and any defective points of the tube are marked with this apparatus or omitted if necessary. The number of faults is checked according to standards. The tubes are wound in the form of 100-150 kg coil. All machine equipment is Austrian ASMAG.
In the last section, tubes are cut straight or crepe according to customer order. This machine can withstand up to 6 meters and cut pancakes from 15 to 50 meters. This machine is Austrian ASMAG.
– Final annealing:
In this unit, the coil and pancake tubes are heated in the final annealing furnace to a suitable temperature to recover the physical properties such as processing ability, electrical properties, cold treatment and also a glossy surface. They are then maintained at the same temperature for some time and finally cooled at a rate appropriate to the ambient temperature. To prevent oxidation of the tubes, oxygen is vacuumed and nitrogen is pumped into the furnace instead.
– Finished product:
Finally, the tubes are produced and offered to the market in 3 different LWC (level wrapped rolls), Pancake and Straights according to customer order.