Wordt het Arcelor nieuws nog op prijs gesteld? Ik zoek mij gek! :-)
Schmid screws made of ArcelorMittal steel
Steel News - Published on Thu, 01 Mar 2018
Every day, around 20 km southeast of St. Pölten and some 60 km southwest of Vienna, about 4,000,000 screws are produced; that's about 40 tons a day. In his own drawing shop, Schmid converts wires into exactly the diameter required by the desired screw. Thereafter, the wire is annealed. The controlled heating ensures that the wire is deformable. The high-end presses make it possible to produce a wide range of screws not only in precise quality, but also - thanks to the high level of vertical integration - at economic costs. In the modern rolling mill, the thread is then rolled onto the screw.
The majority of screws are six to eight millimeters in diameter and is 20 to 30 inches long. But there is another way: with a diameter of three to 24 mm, lengths of up to 1.5 meters are possible. There are also special parts for building construction, fitting technology and ski binding technology. Before the screws are packed and shipped, they are hardened in the heat treatment plant in a special gas atmosphere. Then, as needed, they are provided with coatings that protect the screws from corrosion. As a finish, a lubricious coating ensures maximum efficiency in the application.
Mr Andreas Gebert MD of Schmid said that "Our screws are mainly used in structural timber construction.”
Source : Strategic Research Institute