卫生瓷质量缺陷,既有单一工序造成的,也有与两道工序有关的。因此,进行缺陷分析,准确判断缺陷的责任,是保证产品质量的重要前提。首先,按工序分。在原料工序出现的铜脏、铁脏、棕眼,导致泥浆性能不稳,由此在成型制坯工序造成的开裂、瘫活等是大批量的;就单一件产品而言,不分部位。这方面的缺陷比较容易鉴别。在成型工序的缺陷以开裂、变形为主,但总的来讲是局部的,微细的,而且随操作者水平而异,不是全部的。烧成工序造成的缺陷一般比较明显,又多为破损性质的,如装裂、烧裂、烧变形、烧泡等。这 Sanitary porcelain quality defects are caused by a single process and are related to two processes. Therefore, carrying out defect analysis and accurately determining the responsibility of defects are important prerequisites for ensuring product quality. First of all, according to the process points. The copper dirty, iron dirty, and brown eyes appearing in the raw material process lead to instability of the mud properties, and thus the cracking and defying caused in the forming and blanking process are large-volume; in terms of a single piece of product, the parts are not divided. This defect is easier to identify. The defects in the molding process are mainly cracking and deformation, but they are generally local, fine, and vary depending on the level of the operator, not all of them. The defects caused by the firing process are generally obvious, and are mostly of broken nature, such as cracking, burning, deformation, and foaming. This