During the use of toothed steel grating, we can't help but have questions. How should its quality be identified? Let's take a look at how to identify the quality of toothed steel grating!
1. The quality of toothed steel grating mainly depends on the galvanizing on its surface. This is the main criterion for customers to judge the quality of toothed steel grating.
1. The amount of galvanizing of toothed steel grating determines its quality: The amount of galvanizing of toothed steel grating mainly depends on the thickness of the galvanized film, which determines the authenticity and quality of the galvanizing. Generally, the thickness of hot-dip galvanized steel grating is required to be above 70μm, while the thickness of ordinary electroplated steel grating is basically good if it can reach 10μm. This is why we always recommend hot-dip galvanized steel grating to our customers. The reason is that the thickness of the galvanized layer determines the level of anti-corrosion ability.
2. Should the toothed steel grating be hot-dip galvanized or cold-dip galvanized? It can be treated with cold galvanizing or hot-dip galvanizing. The advantage of hot-dip galvanized steel grating is its strong anti-corrosion ability. Cold plating is electroplating, that is, zinc salt solution is electrolyzed to coat the plated parts. Generally speaking, no heating is required, and the amount of zinc applied is very small. It is easy to fall off when encountering a humid environment. For the environmental protection issues of steel gratings, hot plating Zinc pollutants are emitted less. The pollutants of hot-dip galvanizing are mainly waste acid from pickling workpieces, while the pollutants of cold-dip galvanizing mainly include waste acid from pickling workpieces, waste electroplating liquid, waste passivation liquid, etc. The type and quantity of pollutants emitted by cold galvanizing are greater than those of hot dip galvanizing, so it is better to use hot dip galvanizing technology for galvanized steel grating.
2. The quality of toothed steel grating also depends on the quality of raw materials: in order to reduce production costs and increase profit margins, some manufacturers even use flat steel made of scrap steel!
3. The flat steel correction level and welding level also have a great impact on the quality of the steel grating.
4. Whether the tolerances of the toothed steel grating, including the diagonal tolerance, are controlled within the national standard or the scope of the contract.
5. The quotation of toothed steel grating reflects the quality of galvanizing: As the saying goes, you get what you pay for. The raw materials, labor, etc. of galvanized steel grating all have a certain cost. Therefore, the prices of good and qualified steel gratings are basically the same as those on the market. The thickness of the galvanized layer of galvanized steel gratings is higher, and the price can be higher accordingly, but in reality it is not much higher.
The above is all the content introduced to you. I hope it will be helpful to you. If you want to know more knowledge, you can contact us directly and we will provide you with more professional information.