Preparation method of blue fluorescent powder as well as product and application of blue fluorescent powder

The invention discloses a preparation method of blue fluorescent powder as well as a product and application thereof, and the preparation method comprises the following steps: S1, calcining by adopting a solid phase method to obtain a blue fluorescent powder block to be ground; and S2, softening the to-be-ground blue fluorescent powder block obtained in the step S1 by using hot steam, carrying out ball milling, washing, and drying to obtain the blue fluorescent powder. Compared with the prior art, according to the preparation method provided by the invention, in the solid-phase preparation method, the to-be-milled blue fluorescent powder block is steamed by hot steam before ball milling, so that the damage to a crystal structure caused by direct crushing can be avoided, the stability of the prepared blue fluorescent powder is ensured, and the blue fluorescent powder can show higher color rendering property. 本发明公开了一种蓝色荧光粉的制备方法及其制品和应用，包括以下步骤：S1、采用固相法煅烧制备，得待磨的蓝色荧光粉块；S2、接着采用热蒸汽蒸软步骤S1得到的待磨的蓝色荧光粉块，再进行球磨，而后洗涤，烘干，制得蓝