Ceramic Ferrules For Stud Welding

The use of a ferrule is required for stud welding in order to concentrate the heat and retain the molten metal at the base of the stud until it has cooled.

Ceramic ferrules for stud welding. Why are ceramic ferrules essential for stud welding. They are taken out of the mold and are dried. Ceramic ferrules are essential part of the standard shear connectors shear studs drawn arc stud welding process. The stud will be inserted into the chuck of the stud welding gun and positioned onto the workpiece possibly by adding a ceramic ferrule.

Firstly the drawn arc machine is set up for the appropriate stud diameter. First the ferrule helps to shield the arc from the operator. Finally the fillet vents allow weld gases to escape. Ferrules are cast in a mold out of a low grade moldable ceramic.

By means of a lifting mechanism the stud will be lifted and at first an auxiliary arc pilot arc of a low current will be drawn. Ferrules are disposable items. Second it minimizes the atmosphere that the flux must purge. To understand why it s important to know how drawn arc stud welding works.

Without ceramic ferrules the drawn arc process wouldn t be effective and welds wouldn t be as strong. Initiating the welding process. Third the ferrule forms the molten metal into the fillet. Our ceramic ferrules can go from ambient temperature to weld temperature in a split second and resist cracking or exploding.

Ceramic ferrules for arc stud welding are disposable items. After cooling the ferrule is broken off to reveal the weld. In the process the shear connector will insert into the center hole of the ceramic ferrule the ceramic ferrule will be pressed on the welding surface by ceramic ferrule holder by the force of spring device inside the welding gun.