大型瓷套无机粘接成型关键工艺的控制

Technologic Controlover Essential Glaze-joining Processes of Giant Porcelain Shell

大型瓷套是指220kV及以上电压等级的瓷套产品,总高在2郾5m以上,难一次成型制作,只能采用二次粘接的方法,最终制成符合要求的瓷套。笔者主要介绍大型瓷套在二次粘接成型过程中,坯件的制作、装烧及粘接口的研磨等关键工艺的控制要点和方法,以防止和减少在这些工艺过程中可能出现的产品缺陷,从而提高产品合格率。

Giant porcelain shell,i.e.porcelain shell insulator of 220kV and above having height above 2.5m, is difficult to be formed as monolithic piece. It shall be turned out as a monolithic unit meeting all requirements only with subsequent jointing.The author presents main aspects and methods of technological control over essential glaze-jointing processes such as body forming, loading for firing, and preventing and rteducing possible defects in their processes to increase acceptance rate of product.