This news article was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to provide an accurate translation, however, no automated translation is perfect nor is it intended to replace a human translator. The original article in Spanish can be viewed at Nuevo concepto para la producción en una sola fase de tubos de PE reticulado por peróxido

Developed jointly by Crosslink Finland, Hans Weber, Inoex and Borealis

New lattice concept for production in a single phase of PE pipes for peroxide

Drafting PU16/12/2008

A group of important designers of equipment and technology producers of European materials, along with Borealis, innovative plastics solutions provider, have joined forces to design a production process in a single phase for tubes of lattice polyethylene (PE-Xa) peroxide of high performance.

December 16, 2008

The cooperation project involves Crosslink Finland Oy's Finland, which produces reticulate units infrared; Hans Weber maschinenfabrik of Germany, which has developed some of the best extrusion double spindle machines that exist for this technology; the German company Inoex, which provides innovative dynamic units of mixing, dosing and control; Borealis, which has developed two new qualities of its BorPex range of lattices polyethylene of high molecular weight and high density, specially designed for this process of production; AkzoNobel, which provides the kind of appropriate peroxide; and Ciba provided by the additives.

PE-Xa pipes are used in the systems of distribution of domestic water, district heating, gas and other industrial applications.

The new concept offers a combination of all the necessary components for a production process of high speed and high quality, easy to use PE-Xa. "So far, the processors had to select on their own, without the specific knowledge, the different components needed for the production," says Norbert Jansen, director of marketing for applications water hot and cold of Borealis.

PE-Xa pipes are used in the systems of distribution of domestic water and gas, district heating and other industrial applications that benefit from the resistance to high temperatures and chemicals, as well as its flexibilityhis enormous resistance to impact at low temperatures and its high resistance to the fluence.

Extruder Weber C7.

Direct injection of peroxide ion

Generally, PE-Xa pipe manufacturers buy the polyethylene, peroxide and associated functional additives (antioxidants, stabilizers of UV, etc.) separately and mix them dry in process batch. The team of dosing and monitoring from Inoex, this can be done is now continuously, in line with the phases of extrusion and lattice.

The combination of static and dynamic mixing procedures in multicomponent Inoex Saveomat dosing station guarantees that the liquid and solid materials mix evenly. Part of this process is the system of integrated nozzles which inject peroxide during the mixing process to ensure that the granulate wet evenly.

Weber of double screw, high-performance extrusion machines

The extrusion of double screw machines have become the method of processing preferred for the production of PE-Xa pipes due to their ability to provide a higher mix and a certain homogeneity without overheating.