As part of the integration process with Taiyo Nippon Sanso Corporation, Nippon Gases has launched the Sanarc®, LaserSan® and SanCut®, a new product line for welding and thermal cutting.  

Launched today, Nippon Gases’ LaserSan® is designed for laser cutting and plasma cutting, whilst the SanCut® is designed for oxyfuel technologies.


Source: Nippon Gases

Although the primary purpose of gases is to prevent exposure of the metal joint to the atmosphere to avoid oxidation, actually the “shielding gas” can have a significant influence in different steps of the welding process.

In fact, a careful and well-balanced composition of the shielding gas, in addition to maintaining an aesthetically acceptable and non-oxidized weld bead, influences the electric arc as well both in stability and concentration as well as in intensity.

By varying the compositions of the mixtures in MAG process, spatters, which inevitably form, can be reduced in size, decreasing their energy content and thus avoiding the stick to the sheets being worked on. 

Furthermore, the shielding gas can influence the chemical composition of the welded joint which, given the high temperatures, can be modified during the process. The composition of the gas also affects the welding fumes and the brightness generated by the electric arc. 

All the effects listed above produce secondary effects which results in greater process speed and therefore greater productivity. 

This can be obtained through a long experience and a continuous study that, year after year, and thanks to important technological developments of the welding generators, allows the products meet the different production requirements.

Likewise, even the increasingly extreme thermal cutting processes require high purity gases to improve the process performance both in terms of quality and productivity.