Ceramic Welding Process

Why are ceramic ferrules essential for stud welding.

Ceramic welding process.

Special glazes are available to join some of the ceramic and metal combinations. The technology works in ambient conditions and uses. They ensure the drawn arc stud welding process works effectively. Usually this method is employed for joining ceramics to metals.

These figures relate to silica type s ceramic welding powder mechanism of ceramic welding magma layer 3180 3540of reaction zone 3540 3720of welding nozzle projected powder reacted material in the. Damaged wall prior to repair welding in progress finished repair. This ceramic welding process is applied for more than 20 years in coke plants all over the world in the most important steelmaking group such as arcelormittal jfe china steel etc. A team of engineers at the university of california san diego ucsd.

The fosbel ceramic welding process for glass furnace hot repair was invented and first applied in the late 1960 s. The process works in ambient conditions and uses less than 50 watts of laser power making it more practical than current ceramic welding methods that require heating the parts in a furnace. It is necessary to reduce the temperature gradient in and around the fusion zone as much as possible and to carefully control the heating and cooling speed during the joining process. 50 w of laser power making it more practical than current ceramic welding methods that.

Nano tec ceramic weld powders. The ceramic weld process reconstructs the refractory back to its original state. Fosbel initiated a research project to address ceramic welding repairs on older ovens that do not heat as well as designed. Non oxide ceramics are more difficult to join by this process as they tend to react with the glazes releasing gas bubbles which weaken the bond.

Without ceramic ferrules the drawn arc process wouldn t be effective and welds wouldn t be as strong. Ceramic ferrules also known as ceramic arc shields are small rings made from ceramic material. Using the fusion welding method to join ceramics by concentration heating or with a high energy density heat source cracking in the ceramic easily occurs. Gas tight welding repairs reduce energy loss and solve environmental issues.

Fosbel has pioneered and perfected this innovative hot repair process that is used to repair the inside hot face of any furnace refractory at operating temperature in most cases with minimal disruption to production. Ceramic welding coke ovens ceramic welding the process from left to right.