TPT March 2022

T E CHNOLOG Y

Prestar – merging finishing lines for small tube processing in Slovakia

Now, after verifying the reliability of the operation, Prestar has signed a second contract for the supply of another similar automatic finishing line for tubes of OD 12 to 35mm with delivery by the end of 2022. In addition, Prestar commissioned another finishing line for stainless steel tubes of OD 6-16mm for the company Sandvik in 2020. The finishing line has now been completed with a separate coil unwinding and tube cutting on a flying saw. The cutting of 6m lengths of tubes is carried out in a cycle time of less than 6 seconds. A distinctive feature of these finishing lines is the high productivity and ease of operation from the operational panel.

table. After testing, the tubes are cut using three saw units with an accuracy of ±1mm. The ends of the tubes are automatically chamfered, blown and stored in a pocket. The entire finishing line is controlled by one operator at a production cycle of 6 sec/1 pc of tube. Prestar has designed the tube finishing line so that the tubes are automatically separated and straightened

DUE to a wish for reduce manpower in tubes production, and to increase the overall productivity of tube production in 2021, customer Železiarne Podbrezová AS, based in Slovakia, requested the ability to merge several separate production sites into one finishing line for processing tubes of OD 6-16mm and in lengths up to 8m. The tubes, following cold drawing and after thermal annealing, are inserted into the inlet pocket and from that moment the tubes are processed in automatic mode. At the end of the production line, the tubes are aligned, cut to the exact length and with clean ends gather in the collection pocket. Prestar has designed the tube finishing line so that the tubes are automatically separated and straightened on the 10-rolls straightening machine. Any material defects are tested on the NDT

Prestar www.prestar.com

Saet Emmedi offers energy cost reduction with efficient MosWeld SiC technology

because of the robustness and reliability of the SiC technology; throughout the past year this trend has been confirmed by other customers who have remained loyal to the brand by investing again in the MosWeld SiC family. Another major challenge today is the local commissioning and maintenance of the equipment, as travel remain difficult to some regions. Emmedi has, therefore, developed new welding features to make it easier for customers to use SIC equipment without prior experience and to improve remote connectivity. During the next Tube Düsseldorf (stand 6C14) Emmedi will be sharing the results, benefits and features of the MosWeld SiC technology. The company will present case studies of customers who have benefited from energy savings and other strategic features by choosing the Emmedi MosWeld SiC units.

effectively measured on site by many customers who claimed energy savings of at least 30 per cent (in case of valve equipment replacement). The MosWeld SiC family offers benefits by using silicon carbide and an architecture designed to maximise energy efficiency and line availability. In 2021, tube producers Tata Steel entrusted its manufacturing to Emmedi

INDUCTION heating company Saet Emmedi has announced a solution to one of the biggest costs in the induction tube welding process – energy consumption. The company now uses SiC tech- nology, which increases the efficiency of the welding process, thus reducing electricity consumption. According to Emmedi, these parameters have been

Saet Emmedi www.saetemmedi.com

Saet Emmedi uses SiC technology to increase the efficiency of the welding process

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MARCH 2022