A METHOD FOR CHARGING PARTICLES IN A MATERIAL MANUFACTURING PROCESS

摘要

Method for charging particles (M1), which particles are used for processing of a material, in which method at least a gaseous reactant (M2) is supplied and oxidizing gas (M3) is supplied to the reactant (M2). The oxidizing gas (M3) is charged electrically before it is supplied to the reactant (M2) whereafter the reactant (M2) and the oxidizing gas (M3) form charged particles (M1). The material to be processed is advantageously a multi-component oxide construction, such as an optical fiber preform. The invention also related to a charging device implementing the method.