Welded wire fabric hot dip galvanizing

In construction, agriculture and security protection industries, the anti-corrosion performance of welded wire products directly determines their service life and application value, and hot dip galvanizing is the key technology to enhance this performance.Weld Mesh, Also Known As Welded Wire Mesh, Is A Type Of Metal Mesh Made By Welding Together Intersecting Wire Strands At Right Angles. The Wires Are Welded At Each Point Of Intersection, Creating A Strong, Uniform Grid Structure. Weld Mesh Is Commonly Used In A Variety Of Applications Due To Its Strength, Versatility, And Durability. Hebei Bangjun Metal Products Co., Ltd., established in 2010, is a professional wire mesh product manufacturer integrating R&D, production, sales and service. Its main products include Gabions Mesh, Welded Wire Mesh, Hexagonal Wire Mesh and other wire mesh products. By mastering the advanced hot dip galvanizing technology for welded wire fabric, the company has significantly improved the quality of weld mesh and welded wire products, becoming a trusted partner for domestic and foreign customers.

Welded Wire Fabric Hot Dip Galvanizing Core Processes

• Hebei Bangjun strictly controls the pre-treatment process of welded wire fabric. Before galvanizing, the fabric is degreased with alkaline solution and pickled with hydrochloric acid to completely remove oil stains and rust on the surface, ensuring the uniformity of the zinc coating.

• The hot dip galvanizing process uses a zinc pot with a temperature of 440-460℃. The welded wire fabric is immersed in molten zinc for 3-5 minutes, and the zinc liquid fully adheres to the wire surface and welding points, forming a dense zinc-iron alloy layer and pure zinc layer.

• Post-galvanizing treatment includes cooling and passivation. The welded wire fabric is cooled by air and then treated with chromate passivation, which enhances the adhesion of the zinc coating and prevents white rust during storage and transportation.

Weld Mesh Performance Advantages After Hot Dip Galvanizing

• Hot dip galvanizing significantly improves the corrosion resistance of weld mesh. The zinc coating thickness of the company’s products reaches 60-80μm, which can withstand 500 hours of salt spray test without rust, suitable for humid environments such as farmland and river banks.

• The welding points of galvanized weld mesh are more firm. The molten zinc penetrates into the welding gaps during galvanizing, reinforcing the joint strength, and the tensile strength of the mesh is increased by 25% compared with non-galvanized products.

• The galvanized weld mesh has a long service life. In ordinary outdoor environments, it can be used for 15-20 years; in industrial areas with mild corrosion, the service life is still more than 10 years, reducing the frequency of replacement and maintenance.

Welded Wire Hot Dip Galvanizing and Application Expansion

• Galvanized welded wire is widely used in construction concrete reinforcement. The company’s galvanized welded wire has strong adhesion to concrete, which can effectively prevent concrete cracking and is used in floor and wall reinforcement projects.

• In agricultural applications, galvanized welded wire is made into animal enclosures and crop fences. It can resist the erosion of fertilizer and pesticide, and the smooth surface of the zinc coating avoids scratching livestock, favored by large-scale farms.

• For security fences, the galvanized welded wire has both strength and anti-corrosion performance. The company’s 358 fence made of galvanized welded wire is used in airport and prison security, with excellent anti-climbing and anti-damage capabilities.

Welded Wire FAQS

How to detect the quality of the zinc coating on welded wire fabric?

We use two main detection methods: first, use a coating thickness gauge to measure the zinc layer thickness ofwelded wire fabric, ensuring it meets the standard of 60μm or more; second, conduct a bend test, bending the fabric 180 degrees 5 times, and the zinc coating should not peel off. Customers can also entrust third-party institutions to conduct salt spray tests to verify corrosion resistance.

Is the hot dip galvanizing process ofweld mesh environmentally friendly?

Yes, our hot dip galvanizing process complies with national environmental protection standards. We have installed waste gas treatment equipment to purify zinc fume; the waste acid and waste water generated in the pre-treatment process are recycled and treated by a professional sewage treatment system, and the discharge indicators all meet the GB 25469-2010 standard, realizing green production.

Can galvanized welded wire be used in high-temperature or low-temperature environments?

Galvanized welded wire has good temperature adaptability. It can work stably at -40℃ to 120℃. In high-temperature greenhouses, it will not soften or deform; in cold northern regions, it will not become brittle. For special high-temperature scenarios above 200℃, we can provide additional high-temperature resistant coating treatment.

What is the delivery cycle for customized galvanized weld mesh orders?

The delivery cycle depends on the specification and quantity. For standard-sized galvanized weld mesh, the delivery cycle is 3-5 days; for customized weld mesh (such as special mesh size or wire diameter), the production cycle is 7-10 days, and the overall delivery cycle is 10-15 days including transportation. For large orders over 10,000 square meters, we will arrange multiple production lines to ensure on-time delivery.

How does hot dip galvanizing affect the cost of welded wire fabric?

Although hot dip galvanizing increases the initial cost by about 15-20%, it greatly reduces the long-term cost. The service life of galvanized welded wire fabric is 3-5 times that of non-galvanized products, and the maintenance cost is almost zero. For large-scale projects, the total cost of using galvanized products is lower than that of non-galvanized ones.