专利汇可以提供Manufacture of voltage nonlinear resistor专利检索,专利查询,专利分析的服务。并且PURPOSE: To make viscosity of granulation slurry and grain diameter of a granulated powder uniform and to reduce generation rate of inner defects and loss rate of a raw material by adding mixing a granulated powder of a specified grain diameter or less which is classified by a cyclone classifier in a process of granulation to a new material.
CONSTITUTION: Granulation slurry is acquired by mixing a zinc oxide material which becomes a main element, a metallic oxide raw material such as Bi
2 O
3 , Sb
2 O
3 , etc., which develops voltage nonlinear properties and a binder are mixed in a mixing tank 2. The acquired slurry is supplied to a spray dryer 1 and granulated, a granulated powder of average grain diameter of about 149μm is supplied to a following process, and a granulated powder of grain diameter of 106μm or less, preferably 63μm or less, is classified by a cyclone classifier 3, which is not disposed of and added into a mixing tank 2 to be mixed with a new raw material. A desirable mixing amount of the classified granulated powder of a specified grain size or less, preferably 63μm or less, is about 3 to 20wt.% to the entire of the new raw material since it especially realizes stable viscosity.
COPYRIGHT: (C)1991,JPO&Japio,下面是Manufacture of voltage nonlinear resistor专利的具体信息内容。
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