METHOD FOR TREATING AND SOLIDIFYING QUARTZ SAND BY ACTIVATION, SOLIDIFIED QUARTZ SAND BODY AND OVERCURRENT PROTECTIVE DEVICES

摘要

The invention relates to a method for treating and solidifying quartz sand, which is characterized by the following steps: a) Treating the surface of the quartz sand by adding at least one substance, for example an acid or an alkali; b) Removing the at least one substance, for example an acid or an alkali, from the quartz sand by washing the quartz sand using an aqueous solution or by baking out; c) Solidifying the cleaned quartz sand by adding a bonding agent. The invention further relates to a solidified quartz sand for an overcurrent protective device as well as an overcurrent protective device.