Galvanizing Pickling and Washing
Galvanizing Pickling and Washing 1, pickling steel pipe: 1) pickling workers must wear good labor protection before work, at work to seriously check the work site has no barriers, harness is intact, to confirm the good before the work. 2) pickling Mainly pickling hydrochloric acid, the use of water to the preparation of hydrochloric acid, hydrochloric acid content of 18 to 20% more appropriate. 3) pickling work before the first understanding of the concentration of acid, temperature and the tank pickling pipe tonnage. 4) hanging pipe when the two harnesses to leave the end of the first 1.3 meters to prevent hanging bending pipe, resulting in galvanized steel pipe leakage; in the acid tank to the next tube, the pipe to tilt 15 °, the first stand under their own end to prevent spray Acid wounding. 5) Each pickling of steel pipe , the weight of 2 to 5 tons is appropriate, time 5 to 15 minutes. 6) steel pipe in the pickling to frequent vibration in the process...