TPT March 2014

7-11 April 2014

Yoder – USA Email: yoder@formtekgroup.com Website: www.yodermfg.com

assembly consisting of two top edge rolls that control the edge presentation prior to welding. The head roll assembly has vertical adjustment as a group and individual adjustments to compensate for improper strip edge alignment. The main squeeze pressure is provided by the bottom squeeze unit, which will utilise two side rolls only for rounds that range from 38.1 to 82.6mm (1.5" to 3.25") OD, or two side rolls and one bottom roll for rounds that range from 82.6 to 127mm (3.25" to 5") OD. The ability to switch from four-roll to five-roll configuration allows the operator flexibility to provide the proper material presentation for the welder. The bottom squeeze roll assemblies are unique, in that there is fast sides close adjustment as well as a fine tuned (and geared) close adjustment, eliminating the need for operators to use cheater bar tools, which can cause injury if they slip. All roll spindles are ‘dead-shaft’ design, so the bearings are housed within the rolls to yield the best possible bearing life for the weld box. The weld box assembly has the ability to move up and downstream with respect to the tube mill flow. This

Galdabini SpA

9A52

Italy IN the production field of shafts, tubes, profiles and rods the market requires processes that result in a high quality finish and the straightening operation is now a key element in achieving close machining tolerances. Good examples of this are the oil and gas and nuclear fields where the increasingly stringent international API guidelines and recent events have made quality standards of pipes for these applications the most rigorous in the world. In order to meet the high performance requirements of finished tubes from leading international companies Galdabini has manufactured three automatic straightening machines. These are heavy duty machines with forces of 300, 500 and 1000 tons respectively, capable of processing steel seamless pipe with diameter 60 to 450mm and lengths up to 15m.

allows the operator to fine tune the weld vee angle with respect to the last fin- pass. Depending on the tooling design, the weld vee angle can be changed to gain the best operating parameters for the particular product. The weld squeeze box assembly can handle wall thicknesses up to 6.4mm (0.25").

Formtek, Inc – USA Fax: +1 216 292 2898 Website: www.formtekgroup.com

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M ARCH 2014