Arc Stud Welding  Shields /Protection  (Ceramic Ferrules) 

Our arc shields/ceramic ferrules ,  are made from a cordierite composition. (Cordierite possesses properties that make it ideal for stud welding.  Cordierite holds a low thermal expansion as well as low thermal shock. ) Our ferrules can go from ambient temperature to weld temperature in a split second and resist cracking or exploding.  Ceramic ferrule is using in  stud welding in order to concentrate the heat and retain the molten metal at the base of the stud until it has cooled.  After cooling, the ferrule is broken off to reveal the weld. This is for stud welding protection ,or we could said it's good function in welding arc stud or shear connecotor .  Steel and bridge construction , boiler factory  , road repair ,  skyscrapers building all need ceramic ferrule .
We control the quality seriously ,as we are also produce welding stud ,stud welder ,we ofen need to test our welding stud and stud welder ,so we will use ceramic ferrule for testing that .We also conclude below special reason which certify it's a good choice for you to choose to cooperate with us :1.  Ceramic ferrule high strength, consistency shape, clean surface.

2. Ceramic ferrule combine  high density, smooth surface, no deed to drying before welding in the normal storage and construction environment.

3. High-Precision  molding technology, ensure high precision and  consistency of finished ceramic ferrule products .
Our  ceramic ferrules  are made by Standard GBT10433-2002 or ISO 13918: 2008 Type UF, for shear connector .