How To Distinguish The Quality Of Hot Galvanized Industrial Nut

Now many enterprises are thinking about how to prolong the service life of parts.  People are trying various methods to solve this problem, so how to judge the quality of nuts in hot galvanizing industry?
The quality of nuts in hot galvanizing industry can be judged from two aspects.  First of all, judging from the appearance, the first thing to look at is whether there is a complete galvanized layer on the appearance of hot galvanized industrial nut.  If there are black spots, bubbles and other problems, hot-dip galvanized industrial nut are missing plating phenomenon, indicating that the quality of hot-dip galvanized industrial nut is not good.
In addition to what I said just now, I would also like to see if the zinc layer of this hot galvanizing industrial nut is firmly bonded with the base body, and if there are any phenomena such as peeling and peeling.  If there is, it can also be said to be inferior products.  Another thing to observe is whether the appearance of hot-dip galvanized industrial nut is smooth, free of lumps and slippage.  In addition to observing the appearance of hot-dip galvanized industrial nut, the instrument can also be used for detection, because the thickness of the zinc layer can be detected by a thickness gauge, and the quality of hot-dip galvanized industrial nut can also be obtained by chemical analysis of antimony chloride.