welded joints

Magnetic flaw detection is one of the best methods of testing with ferromagnetic properties. It combines high sensitivity and probability of detection of internal and subsurface defects with low cost and ease of implementation. However, there are cases where traditional methods of non-destructive magnetic control is ineffective. Connections of steel structural elements welding method associated with the change of geometric dimensions and shape of the product, and therefore needed to control their use of other methods.

Аre analyzed casing columns production peculiarities using welding techniques. Specifically planning of experiments was executed to ensure optimal implementation of the process. The feature of feedback was taken as contents of hardening structures in the thermal compound influence area. The results enabled to set mode options that makes it possible to create high-quality weld in the implementation of the two clad layers. Model sample joints in pipe casing were welded.