1. Edge scraping of inlet logger: improper operation by personnel, such as excessive deviation correction amplitude, excessive logger punching amount and small tension, or manual deviation correction is not timely; CPC deviation correction system fault scraping edge; Poor shape of incoming plate.
2. Scraping edge of the cleaning tank: The inlet looper is not rectifying properly, and the steel belt runs off-scraping edge in the cleaning tank; Electrolytic copper strip or guard plate break or fall off, leading to squeegee edge of extrusion steel strip or even break of steel strip; The brush roller or the squeeze roller does not turn, which causes the steel strip to break.
3, annealing furnace scraping edge: rectification operation is not timely or no. 3 rectifying machine fault makes rectification effect poor, scraping edge on furnace wall or furnace roll.
4, zinc pot section scraping edge: mainly refers to the furnace at the nose scraping, and this is directly related to the rectification effect of the previous process
Relationship.
5. Scraping edge of cooling tower: plate shape is poor, there are big edge waves, etc., the steel belt runs irregularly, resulting in scraping edge due to rubbing; Tower top deviation correction not in place or CPC deviation correction system failure; Edge scraping for water quenching tank.
6. Scraping edge of export looper: the same as scraping edge of import looper, the main reason is: improper operation of personnel, such as excessive deviation correction range, excessive deviation of logger, or manual deviation correction is not timely; CPC deviation correction system fault scraping edge; Steel strip plate shape has not been well improved, such as edge wave.
On 2018-08-08 11:45:46
