How to Distinguish the Quality of Hot Dip Zinc Steel Grating Plate?

The quality of hot-dip zinc steel grating has an important influence on the use of hot-dip zinc steel grating. Good hot-dip zinc steel grating is not easy to corrode and rust during use. There is also a big difference in terms of service life. In this article, we will understand the method to distinguish the quality of hot-dip zinc steel grating.

The quality of galvanized hot-dip galvanized steel grating mainly depends on the galvanizing on the surface of the hot-dip galvanized steel grating, which is a very important criterion for customers to judge the quality of galvanized steel grating.

Galvanizing or cold galvanizing: steel grating can be treated by cold galvanizing and hot galvanizing. The advantage of hot galvanizing steel grating is its strong anti-corrosion ability, while cold plating is electroplating, I .e. zinc salt solution is electrolyzed to coat the plated parts. Generally speaking, no heating is required, the amount of zinc is small, and it is easy to fall off in humid environment. For the environmental protection problem of steel grating, the pollutants of hot galvanizing are less, and the pollutants of hot galvanizing are mainly waste acid from pickling work pieces. The pollutants of cold galvanizing mainly include waste acid of pickling work piece, electroplating waste liquid, waste passivation liquid, etc. The types and quantities of pollutants emitted by cold galvanizing exceed those of hot galvanizing. Therefore, it is better to adopt hot galvanizing technology for galvanized steel grating.

The amount of galvanizing determines the quality of steel grating: the amount of galvanizing of steel grating is mainly the thickness of galvanizing determines the authenticity and quality of galvanizing. Generally, the thickness of hot-dip galvanized steel grating is required to reach more than 70 μm, while that of ordinary electroplated steel grating is basically good.

The quality of hot-dip zinc steel grating also depends on the quality of raw materials: some manufacturers will use flat steel made of scrap in order to reduce production costs and increase profit margins!

The flat steel correction level of hot-dip zinc steel grating and the welding level also have a great influence on the quality of steel grating.

The tolerance of hot-dip zinc steel grating, including whether the diagonal tolerance is controlled within the national standard or the scope of the contract.

The quotation of hot-dip zinc steel grating reflects the quality of galvanizing: as the saying goes, you get what you pay for, and the raw materials and labor of galvanized hot-dip zinc steel grating have a certain cost, so the price of good and qualified steel grating is basically not much different. The thickness of galvanized layer of galvanized hot-dip zinc steel grating is high, and the price can be correspondingly higher, but it is not much higher.

Post time: Apr-18-2022