Sewing Machines Repair

The impression is that sewing machines gradually cease to be an attribute of our daily lives. Only a half-century ago things were different. (Source: Steven Davis). Today, many of us do not even know how to do a simple stitch, not to mention already on how to fill the sewing machine. For the reason that […]

Advantages

When welding solid wire of small diameter. With increasing welding speed, however, is an increase in the hardness of weld metal and heat affected zone metal. Tony Ford insists that this is the case. The heat generated by the arc solid wire of small diameter, relatively small, which leads to rapid cooling and, consequently, the […]

Various Elements

Fire-fighting equipment is a combination of prevention, containment and extinguishing fires. Each element of fire safety is a functional load and has importance as an independent unit. However, the effective result in the case of an emergency is only achieved when the smooth operation of all interconnected components. That is why it is important that […]

Methods To Avoid The Appearance Of Cold Cracks During Welding Metal

The method of IMET-4 to evaluate resistance against the formation of cold cracks alloys after treatment at various temperatures and strain, for example, after quenching, the thermal cycle of welding (for HAZ) thermomechanical processing, etc. Processing is performed in a special car IMET-4: flat samples of the base metal was adjusted to the desired temperature […]