TPT September 2009

A dvances in C utting , S awing & S awblades

New cutting machines boost capacity

The sawing machine KKS 1430L allows for cutting of tube diameters between 25 and 200mm and wall thickness from 2.5 to 25mm. The layer width is designed for 850mm and saw blades of up to 1,430mm are useable. Framag Industrieanlagenbau – Austria Fax : +43 76835 04086 Email : w.steiner@framag.com Website : www.framag.com

VOESTALPINE Tubulars is using Framag technology to produce seamless steel pipes with an outside diameter up to 177.8mm (7 inches) at its plant in Kindberg, Austria. The capacity of the hot pipe production, boiler tube finishing department and oil country tubular goods finishing department operations is around 350,000 tons per year. The products are of unalloyed or medium-alloyed steel, manufactured to international standards. In its stretch-reducing mill the mother tubes, which have been re-heated and descaled using a water blast, are deformed in a stretch-reducing mill with 28 stands until they have the final desired diameter and wall thickness. Following cooling on 90m rake- type cooling beds, the ends are cropped and the tubes are cut into processing lengths. The ends are cut using two Framag cold circular sawing machines – KKS 1430L. For the best possible cut the pipes are adjusted at the length measuring unit of

the sawing machine and the top ends of the tubes are cut. After a further adjustment at the length- measuring device, the pipes are cut into partial lengths between 2 and 18m. The tail ends can also be cut off and transported into a scrap container.

 The KKS 1430L in the finishing line

Circular saw aims to increase overall efficiency RSA, Germany, has developed a circular saw, RASACUT XXL, for cutting tubes and solid bars with diameters ranging from 20 to 170mm. Further modules for de-burring, checking, cleaning and stacking can be integrated or added, allowing the powerful saw to be expanded into an extensive sawing centre. Due to a gearing that can absorb extreme loads, a drive power of 20 to 40kW and its robust construction, the sawing centre can cope with large diameters and heavy work pieces. Compared to modern band saws, which are often used in this field, RSA says its circular saw can help reduce cutting time so that the customer can even use it to replace several band saws and still create additional capacity. The machine can also been used to cut short tubes with diameters of up to 30mm

 The RASACUT XXL in operation

and fixed lengths of up to 150mm, which are used as rubber-to-metal joints for chassis stabilisers. The de-burring module of the RSA sawing centre is equipped with high performance brushes and the combination of sawing and deburring at a sawing centre significantly reduces the cycle times, says RSA. RSA Entgrat u Trenn-Systeme GmbH & Co KG – Germany Fax : +49 2351 995300 Email : anke.nuesken@rsa.de Website : www.rsa.de

TUBETECH CORPORATION LIMITED TUBETECH WUHU MANUFACTURING CO.,LTD

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S eptember 2009

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