pretreatment

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

论述泳涂装工艺,包括前处理、泳液成分、质量控制等.

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

对烧成过程(预烧温度、烧结温度及温时间、降温方式)及预处理工艺进行了研究。

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

阐述了原料预处理、清花、梳棉、并条、粗、细产工艺和工艺原则。