pretreatment

The process conditions,including presintering temperature,sintering temperature and time,cooling mode and pretreatment were studied.

对烧成(烧温度、烧结温度及保温时间、降温方式)及处理工艺进行了研究。

Application of anodic electrocoating including pretreatment, bath composition and quality control is decribed.

论述阳极电泳涂工艺,包括前处理、电泳液成分、质量控制等.

The thesis explain the production process and process specification of the raw material pretreatment, scutching. dressing. drawing. roving. spun yarn.

阐述了原料处理、清花、梳棉、并条、粗、生产工艺和工艺原则。