Hot-dip galvanized wire is characterized by smooth and bright surface, but moisture will affect the brightness of galvanized wire, so be sure to pay attention to avoid moisture when storing, the method is to set up a shelf on the ground, so that the galvanized wire and the ground are isolated, so that they will not be affected by the surface moisture, and pay attention to weather changes to avoid the galvanized wire being rained on.
Large roll galvanized wire has good toughness and elasticity, and the zinc content can reach 300 grams/square meter. It has the characteristics of thick galvanized layer and strong corrosion resistance. Products are widely used in construction, handicrafts, wire mesh, highway guardrail, product packaging and daily civilian and other fields. Galvanized wire is divided into hot galvanizing, cold galvanizing, that is, electric galvanizing, the price of hot galvanizing is high, and the price of electric galvanizing is low. Hot dip galvanizing is not easy to rust, electric galvanizing is easy to rust, this is a simple identification.
Hot dip galvanizing is dipped in the zinc liquid melted by heating, the production speed is fast, the coating is thick but not uniform, the thickness allowed by the market is 45 microns, and the height can reach more than 300 microns. Cold galvanizing is in the plating tank through the current unidirectional zinc gradually plated on the metal surface, the production speed is slow, the coating is uniform, the thickness is thin, usually only 3-15 microns, the appearance is bright, poor corrosion resistance, generally a few months will rust.
Hardness is a commonly used index of mechanical properties of metal materials. Hardness testing is a quick and economical test method. However, for the hardness of metal materials, there is no unified and clear definition including all test methods at home and abroad. Generally speaking, the hardness of a metal is often considered to be the resistance of a material to plastic deformation, scratches, wear or cutting.
In the debugging of zinc immersion distance, keep the original speed unchanged, determine the zinc immersion time (1) according to t=kd, where: t is the zinc immersion time is a constant, take 4-7d is the wire diameter mm, and then estimate the zinc immersion distance. By adjusting the zinc dip distance, the zinc dip time of various specifications steel wire is shortened by 5s on average compared with that before commissioning. This reduces the zinc consumption, and the zinc consumption per ton of steel wire is reduced from the original 61kg to 59.4kg.
Hot dip galvanizing is dipped in the zinc liquid melted by heating, the production speed is fast, the coating is thick but not uniform, the thickness allowed by the market is 45 microns, and the height can reach more than 300 microns. The color is dark, the consumption of zinc metal is more, the infiltration layer is formed with the base metal, the corrosion resistance is good, and the hot dip galvanizing can be maintained for decades in the outdoor environment.
Post time: 20-07-23