TPT September 2008

T echnology U pdate

per hour. The tubes come from production on a roller conveyor to the preservation line, where an oscillating lifting system (‘walking beam system’) transfers them to a measuring system where length and weight are recorded. These measurements and a serial number are stenciled into the tube. The next step is the transfer of the tubes to the pre-heater with a cross-chain-conveyor. In the pre-heater, the tubes are heated up to 40°C (104°F). The actual coating takes place with a water-based lacquer with 2 sets of spray guns that are arranged in a circle to reach the complete parts surface. The spray positions are automatically adjusted in line with the tube diameter. After painting, the parts pass through a drier. After stenciling, the parts are transferred to a packing station equipped with a vacuum lift system where they are collected in bundles. The number of vacuum suction units, which package the tubes into a hexagonal shape, depends on the length of the tubes. The strapping of the bundle is achieved with steel straps. At the preservation line for Perwouralskij the parts arrive not in single file, but are

placed in bundles by a crane on the Rösler preservation line. In the first step, the tubes are separated, and then weighed and length-measured. The tubes are then transported to a brush station. Parts not in line with proper specifications are moved to a ‘non-conforming’ parts station. In the brush station, after the parts are identified, loose dirt and rust is removed from the tubes. After pre-heating, the parts are transferred to the paint booth. A light curtain signals the system not only when a part passes through the paint booth but also the parts size. This ensures that the 21 airless high-pressure paint guns are only spraying material, when parts are passing through, and that the gun placement is adjusted in line with the parts diameter. After drying, the tubes are transferred from the slat conveyor to a cross-chain-conveyor, which transfers them past a marking station to the packing station. As an all-round supplier, Rösler GmbH is an international market leader in the production of surface finishing, shot blasting machines, painting systems and preservation lines. In addition, the company provides process technology for the rational surface finishing

(deburring, descaling, sand removal, polishing, grinding) of metals and other components. In addition to the German plants in Untermerzbach and Bad Staffelstein, the Rösler Group has branches in UK, France, Italy, The Netherlands, Belgium, Austria, Switzerland, Spain, Romania, China, India, Brazil, South Africa and USA. Rösler Oberflächentechnik GmbH – Germany  With the vacuum lift system the number of suction units is selected according to tube length

Fax : +49 9533 924 300 Email : info@rosler.com Website : www.rosler.com

Landis Threading Tools for All Your Tube & Pipe Threading Needs … From 1/8" to 6" OD (3 mm to 150 mm), most materials

and thread forms. World-Class Quality

Landis Threading is the gold standard for threading tools—die heads and chasers for the thread forms you need—from API to NPT, straight or tapered. We have the largest selection of threading tools available, including chasers, die heads, spare parts, plus reamers and roller cut-off blades. Service You get your threading tools fast—standard, stocked chasers are shipped within 48 hours. And most special orders within two weeks. Technical Support With Landis Threading, you get the most experienced threading tool specialists in the nation—just a phone call away. Thousands of successful applications are at hand.

FREE CD Ask for yours today!

Call today for more information or visit our website at www.atilandisthreading.com

Threadmaking Answers. ™

360 South Church St. • Waynesboro, PA 17268-2659 USA Phone: +1.717.762.3151 • Fax: +1.717.762.7126 E-Mail: sales@landisthreading.com

ATI Allegheny Ludlum • ATI Allvac • ATI Engineered Products • ATI Wah Chang © 2008 ATI Engineered Products

LANT-079TubePipeAdTPT.indd 1

7/7/08 2:16:32 PM

55

www.read-tpt.com

S eptember 2008

›