Hardness standard for galvanized wire

Hardness standard for galvanized wire

Galvanized iron wire hardness is one of the most commonly used performance indicators for the mechanical properties of metallic materials. Galvanized wire hardness testing is the fastest and most economical test method. However, for the hardness of galvanized wire, there is no uniform and clear definition including all test methods at home and abroad.

In general, the hardness of a galvanized wire is often considered to be: the resistance of the material to plastic deformation, scratches, wear or cutting.

In the debugging of galvanized wire immersion zinc distance, it remains unchanged, and the zinc immersion time is determined according to t=kd.

Among them: tgalvanized wire is a constant zinc immersion time, take 4-7d is galvanized wire diameter mm, and then estimate the galvanized wire immersion zinc distance. By adjusting the galvanized wire immersion zinc distance, the zinc immersion time of various specifications of galvanized wire is shortened by 5s on average before uncommissioning, thus reducing the zinc consumption, and the zinc consumption per ton of galvanized wire is reduced from the original 61kg to 59.4kg.

The hot galvanized wire is immersed in a heated molten zinc bath. The production speed is fast and the coating is thick but uneven. The market allows a minimum thickness of 45 microns and a maximum of 300 microns or more. The color is darker and consumes more zinc metal. The galvanized wire forms an infiltrated layer with the base metal, which has good corrosion resistance. The galvanized wire can remain for several decades in an outdoor environment.