pretreatment

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

论述阳极电泳涂装的工,包括前处理、电泳液成分、质量控制.

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

成过程(预温度、结温度及温时间、降温方式)及预处理工了研究。

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、粗纱、细纱的生产工和工原则。