A method of essay of Sabic reduces the time of commercialisation of pipes to pressesure
7 May 2012
In Sabic are convinced that the acceptance generalised of his method Strain Hardening (endurecimiento by deformation) will accelerate the adoption of his last degrees of Pead bimodal Sabic Vestolen To Rely for the manufacture of pipes of high pressesure.
The method of endurecimiento by deformation is faster and more profitable that the traditional methods of collected of data on the behaviour of the pipes on a long-term basis. Besides, it is not necessary neither a probeta with notch special neither detergents. “It is easy to put it in practice in the laboratories, is adapted for the development of new degrees by part of the researchers, and is also very valuable like essay of release of batches for the suppliers of resins. It is a method that saves time, money and power”, affirms Lada Kurelec, technical director of Marketing for Pead of Sabic.
The traditional methods of evaluation of the behaviour on a long-term basis of pipes to pressesure, like the essay FNCT (Full Notch Creep Test) and the essays of tubes with notch, lengthen during months, some times years. These essays of notch traditional no only are costly and of uncertain reliability, but they would take months in testing that a new material fulfils, for example, the strict requirements of the norm PAS 1075”, explains the company. The method Strain Hardening, sustains Sabic, allows to shorten drastically the time to some hours and only requires a simple essay of traction to 80 °C. Other advantages of this method of essay are the very reduced variation of the measurements, the possibility of prescindir of agents tensioactivos and muescas and the small quantities of material necessary for the essay (<50 grams).
