TPT July 2016

T UBE M I L L S & R OL L FORM I NG L I NE S

Nakata 30" ODF Mill line NAKATA Mfg Co, Japan, is preparing to deliver its first orbital die forming mill for large welded pipes to a Chinese pipe manufacturer following the recent installation of a small pipe mill of the same type equipped with a laser welder at a Japanese customer.

However, in this 30" ODF mill, these problems can be solved by adopting ODF technology to both the breakdown and finpass section, resulting in a very stable and productive hybrid forming process. This innovative technology also has other advantages in the production of ultra-thin wall pipes and pipes made of hard-to-work material, as well as excellent performance in high-speed laser welding.

and production of oil and gas wells. Danobat machines finish off the pipes with patented premium threads that are claimed to provide superior performance. “They are perfectly suited for work on sites at 4,000 or 5,000 metres depth,” explained Carlos San Martín, director of technology and development of Tubos Reunidos Industrial. Among other facilities, the line will have several horizontal Danobat TTB lathes for the machining of pipes. One of the most important features of this machine is the rigidity, high production and chip removal capacities during such as UO and JCO have to be used. Theoretically, it is possible to produce pipes larger than 26" OD using the roll- forming process if plates can be used as raw material instead of coil. In practice, however, it is difficult for roll-forming to process the plate stably because of its limited length. In addition, irregularly deformed pipes, at both the nose and tail ends, are caused by strong contact between the plate and rolls during threading, resulting in very low material yield compared to the continuous process, which is a big obstacle to the application of roll-forming in the plate-by-plate process.

The pipe size is up to OD 30" (762mm) and WT 25.4mm, and most of the products are API line pipes up to X80 grade. The metal strip used in roll- forming is typically coiled with a width of less than 2m. This means the roll- forming process is only applied to the production of pipes below 26" OD and beyond that press forming processes

Nakata Ltd – Japan Email: sales@nakata-mfg.co.jp Website: www.nakata-mfg.co.jp

Pipes and couplings manufacturing line DANOBAT has opened a new pipes and couplings manufacturing line for the company Tubos Reunidos.

turning and threading operations. In addition, it is provided with load-unload systems, positioning channels and solutions with specific tools for turning pipes. The line will be equipped with Danobat band saws to cut the pipes, offering a high value-added comprehensive solution to Tubos Reunidos. In the new factory, Danobat machinery will also produce the necessary special couplings to join the pipes in the well.

The new facility is equipped with Danobat machines for the manufacture of threaded pipes and hoses. The project is the result of a joint venture between Tubos Reunidos and Marubeni. The premises total around 31,500m 2 , and include a workshop where the Danobat machines manufacture the threaded pipes. The new production line will manufacture highly technological pipes, specifically threaded for drilling

Danobat – Spain Website: www.danobatgroup.com

Stainless steel tube making technology KUSAKABE Electric and Machinery Co is celebrating its 100 th anniversary this year. Its first complete stainless steel tube mill installed in China was in Suzhou City, in 2010. This is a high frequency induction welding stainless steel tube mill. per cent since production commenced and the customer is delighted with this result and the continuing level of technical support, according to Kusakabe.

bead height adjustment while running, quick change tooling for rapid OD changes, data logging system of all the variable inputs for engineering and quality checking, tracking and auto rejection of all defect tubing. A new tube mill is to be delivered and installed in the USA. The size range of this tube mill is Ø45 to Ø54mm, thickness 1 to 1.5mm, line speed 15m/min and cut length 700 to 2,200mm. After cutting, the products do not need to be re-cut and they go straight to the next process. Kusakabe Electric and Machinery Co, Ltd – Japan

Kusakabe equipment is built for durability, repeatability and reliability. Output from the Suzhou City tube mill is 1,500 to 1,800 tons per month. Kusakabe designed and manufactured the tube mill using its experience to take full advantage of automation tomaximise operator and machine productivity while producing a consistent, high quality product with minimum variation of all the inputs. The tube mill contains many of Kusakabe’s technologies, such as strip forming for SUS, weld temperature monitoring and control, internal weld

Many HF SUS tube mills have been supplied around the world over the past 20 years. The product range of the Suzhou City tube mill is Ø32 to 65mm, thickness 0.8 to 2.5mm, maximum line speed 60m/min, and cutting length 4,000 to 6,000mm. The largest consumer of HF welded SUS tubing is the automotive exhaust industry. The major advantages of this tube mill are production yield and output. The yield of prime products has been more than 97

Email: sales@kusakabe.com Website: www.kusakabe.com

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J ULY 2016