butt-welding

The purpose of the article is to study the influence of cracks on the stress concentration in butt-welding and corner-welding joints.

The measures were called for by the Defence Committee of the Steel Butt-Welding Fittings Industry of the European Union.

Introducing a butt-welding system with capability for vertical (i.e., right-angled or corner) welding of PE, PP, PVC, and other sheet products to make shaped products like tanks.

The centre-piece of the investment is a butt-welding machine capable of manufacturing HDPE and HPPE fittings from 355 - 630mm in diameter, complementing Plasflow's existing capabilities.

A fully automatic system for thermally butt-welding all four corners of a PVC window frame simultaneously was shown by Technoplast International, Corrales, N.M.