A ceramic thermal spray applied directly to a part surface or device to be heated, such as a hot runner nozzle, has the potential to help plastics processors solve challenging heating applications. The technology is still in the R&D stage for the plastics industry, but is said to have significantly fewer limitations than traditional heaters in terms of sizes, shapes, and substrates. Once the ceramic material is sprayed onto the device to be heated, a pattern is etched in the ceramic to conduct heat. Watlow?a custom designer and manufacturer of industrial heaters, sensors, controls, and software?is developing the technology for use on an OEM- or processor-supplied part or nozzle.
Watlow Electric Mfg.
Â Co., St. Louis, MO