Galvanized wire is a metal wire treated with a special process and has a variety of excellent properties:

1. Definition and classification

Definition: Galvanized wire is a metal product made of high-quality low-carbon steel wire rods. It is processed by processes such as drawing, pickling and rust removal, high-temperature annealing, hot-dip galvanizing or cold-dip galvanizing (electro-galvanizing). .

Classification: Galvanized wire is mainly divided into two types: hot-dip galvanized wire and cold-dip galvanized wire (electro-galvanized wire).

2. Production process

Hot-dip galvanized wire: Dip-plated in heated and melted zinc liquid, the production speed is fast, the coating is thick but uneven, dark in color, and has good corrosion resistance. Hot-dip galvanizing can last for decades in outdoor environments.

Cold galvanized wire (electroplated galvanized wire): The zinc is gradually plated on the metal surface through the unidirectional current in the electroplating tank. The production speed is slow, the coating is uniform, the thickness is thin (usually only 3-15 microns), and the appearance is bright, but The corrosion resistance is relatively poor and will usually rust within a few months. Compared with hot-dip galvanizing, the production cost of electro-galvanizing is lower.

3. Characteristics

Toughness and elasticity: Galvanized iron wire has good toughness and elasticity, which allows it to maintain stable performance in various applications.

Corrosion resistance: The galvanized layer can effectively improve the corrosion resistance of metal wires and extend their service life. Especially hot-dip galvanized wire, its corrosion resistance is more significant.

4. Purpose

Due to its excellent characteristics, galvanized wire is widely used in construction, handicrafts, weaving wire mesh (such as the production of twisted wire mesh, mining chain link fence and protective chain link fence, etc.), highway guardrails, product packaging and daily life Civil and other fields. It has a wide range of applications, high quality and low price, and is very popular in the market.

5. Inspection standards

For inspection of galvanized wire, it usually includes the following aspects:

Diameter uniformity: Use a micrometer and other tools to measure the diameter of the galvanized wire to ensure that its uniformity meets the standard.

Appearance quality: Check whether the appearance of the galvanized wire is neat, with no missing plating, no messy wires, etc.

Amount of zinc applied: Test whether the amount of zinc applied to the galvanized wire meets the standard requirements through acid mist experiments and other methods.

Packaging: The galvanized wire should be packaged intact, with the ends of the binding wire facing inward to prevent scratches on personnel during transportation.