Coil Thread Eye Bolts,Chrome Plated Washers,Large Bronze Washers

There is only one-word difference between electro galvanizing treatment and hot galvanizing treatment, but there is a big difference. Let's analyze the differences between bolt electro galvanizing and bolt hot galvanizing.

Electro-galvanized bolt

Electro galvanizing is an electrolytic process between the cathode and anode of the electronic solution. After the cathode electrons in the solution are free to the anode electrons, they are adsorbed on the bolt surface to form a layer of white protective electro galvanizing. Among them, nickel plating, nickel tin plating, and chromium plating all belong to this principle. The only difference is that the surface color and anti-corrosion performance are different.

The surface of our commonly used Special Carriage Bolts is black or natural color. Exposed in the air, it is easy to corrode and rot over a long time, including some other metal barriers. Due to corrosion, the waste generated every year reaches thousands of tons. To save materials and make these products more beautiful and durable, some surface treatment methods are adopted to cover the bolt surface with a protective film.

After the Coil Thread Eye Bolts is electro-galvanized, if wet air is encountered, the zinc layer film on the bolt surface can isolate the air from the bolt matrix and prevent the bolt from corrosion. The electro-galvanized is evenly distributed on the bolt surface and will not form missing parts. The zinc layer of the whole Special Carriage Bolt is crystallized and corrosion-resistant. Electro-galvanized bolts are very clean and beautiful. They can be safely used in some dust-free workshops without oil stains or other contamination. The color of electro galvanizing can be changed according to the requirements. There are zinc layers of different colors such as white zinc, blue-white zinc, color zinc, or military green, which can play a good decorative role in a special environment.

Electro-galvanized bolts are widely used, basically covering all industries, and play a very important role in the whole basic industrial economy.

Hot galvanized bolt

Hot galvanizing of bolts is also a process of protective coating. Its anti-corrosion performance is better than that of electro-galvanized bolts. Its principle is also simpler than that of electro-galvanized bolts. That is, immerse the bolts in a zinc pool, and then the surface will be covered with a protective film with a thickness of about 70 microns. Therefore, the anti-corrosion performance of hot-dip galvanized bolts is better than that of electro-galvanized bolts. Hot-dip galvanized bolts are not as widely used as electro galvanized bolts. They are mainly used in wind power facilities, photovoltaic base stations, and national home appliance network architecture.

The characteristics of hot-dip galvanized bolts are also very different from those of electro-galvanized bolts. Since the thickness of hot-dip galvanized bolts reaches 70 microns, it has a great impact on the threads. Generally, the specifications above M8 are suitable for hot-dip galvanized treatment, while electro-galvanized bolts do not have this range. No matter how large the bolts are, surface treatment can be carried out. After the bolt is hot-dip galvanized, there is only one gray color, and no other color system can be produced.

Therefore, after hot-dip galvanizing, the appearance of the bolt changes greatly. The bolt looks beautiful without electro galvanizing, and the smoothness of the bolt surface is also very poor. Compared with the electro galvanizing bolt, it is not at the same level at all. Therefore, after hot-dip galvanizing, the bolt needs to be equipped with professional hot-dip galvanizing nuts during installation. There are no concerns about electro-galvanized bolts.

If you want to Coil Thread Eye Bolts,Chrome Plated Washers,Large Bronze Washers, we hope to be your first choice and provide you with high-quality Special Carriage Bolt, plz feel free to contact us.