Knowledge

11Nov, 2024

Why do some galvanized steel pipes bend more severely after water cooling?
When galvanized steel pipes with a temperature of around 300～350°C are conveyed into the water by a chain, the speed cannot be very fast. Due to the inherent longitudinal curva
11Nov, 2024

How to Prevent Galvanized Steel Pipes from Bending Due to Water Cooling?
To prevent galvanized steel pipes from bending during water cooling, the following measures should be taken: (1) The temperature of the hot galvanized steel pipes should not be too
11Nov, 2024

Why is strict control necessary for the temperature of the cooling water used...
In the process of water cooling galvanized steel pipes, it is stipulated that the temperature of the cooling water should be strictly controlled within the range of 50～80°C. Th
11Nov, 2024

Why are there specific requirements for the water quality when cooling galvan...
The cooling water used for galvanized steel pipes should preferably be clear river water or groundwater. Water with high turbidity, chroma, suspended solids, and oil slicks should
09Nov, 2024

How to Cool Galvanized Steel Pipes?
The cooling process for hot-dip galvanized steel pipes consists of two parts: air cooling and water cooling. Here is a detailed description of each: Air Cooling Process: Air Coolin
09Nov, 2024

Why is water cooling necessary for galvanized steel pipes?
After a certain process time of air cooling, hot-dip galvanized steel pipes must immediately undergo water cooling. During air cooling, the temperature of hot-dip galvanized steel
09Nov, 2024

Why is it preferable to use lightweight aluminum alloy idler rolls to transpo...
After galvanized steel pipes undergo the external blasting and wiping of zinc surface treatment, the final finishing process for the galvanized layer is completed. However, since t
09Nov, 2024

What parameters determine the air-cooling duration for galvanized steel pipes?
The air-cooling duration is actually a crucial factor. Neglecting this factor can affect the production output and quality of hot-dip galvanized steel pipes. Therefore, it must be
09Nov, 2024

Why is air cooling necessary after the internal and external blasting treatme...
After galvanized steel pipes are removed from the molten zinc, there is always an air-cooling period, whose duration depends on the production process. From practical production, i
08Nov, 2024

Why is it necessary to significantly increase the gas flow at the beginning o...
At the start of external blasting and wiping of zinc, it is required to double the gas flow to ensure that the galvanized steel pipe enters the gas field. There are two reasons for
08Nov, 2024

Why is it preferable to use superheated steam for internal blasting and wipin...
The gases used for blasting and wiping the unsolidified zinc liquid on the inner wall of galvanized steel pipes mainly include superheated steam, compressed air, pressurized hot ai
08Nov, 2024

Why is it necessary to perform internal and external blasting and wiping trea...
After emerging from the molten zinc bath, steel pipes must undergo internal and external blasting and wiping treatment due to the following reasons: (1) To remove zinc nodules, zin

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