Home > News > Industry News > The hot-dip galvanizing process typically involves the following steps
Browse Categories
Industry News
Company News
Certifications
Contact Us
Harbin Rainbow Technology Co., Ltd.Address:C2-02 Handi Building,Songbei Distr.,Harbin,ChinaPostal Code:150028Web site address:http://www.fastenerequip... Contact Now
News

Difference between hot dip zinc and hot dip galvanising

Hot-dip zincing and hot-dip galvanising are two different processes for corrosion protection of metals, with hot-dip zincing usually providing better ...

China factory price and Advanced Automatic Screw Maker Thread Rolling Machine

Product Descriptionview more >>Frequently bought togetherHigh Speed Thread Rolling Machine Factory Price Thread Roller Hot Sale Thread Machine$4,800.0...

hot forging furnace induction heating machine ipsen furnace mesh belt

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(...

Max diameter one key molding nut drilling machine 2 spindle nut tapping machine

Nut tapping machine is a kind of mechanical processing equipment that processes internal threads, screws or teeth in the inner side of the holes of th...

What's self-tapping screw?

Self-tapping screws: similar to machine screws, but the threads on the screw for special self-tapping screws with threads. Used to fasten the connecti...

High speed installation cold forging machine bolts and nuts making machine for screw

International Fastener Exhibition in New Delhi, India

It is a professional fastener exhibition in Southeast Asia FASTNER FAIR INDIA is a professional fastener exhibition in Southeast Asia, and also mainta...

Analysis of the principle and function of spring washers

In all kinds of mechanical connections, the anti-loosening of bolts is a very important link, and there are many ways to prevent loosening of bolts in...

Hot popular Cold Forging machine bolt forming machine with inveter for good design

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(...

RBF 64S cold heading machine Latest production bolt former machine for anchor

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(...

Browse Categories

The hot-dip galvanizing process typically involves the following steps

Vangel 2023-11-16 13:56:48
The hot-dip galvanizing process typically involves the following steps:

1. Surface Preparation: The steel component is cleaned to remove any dirt, grease, or oxides using processes such as degreasing and acid pickling.

2. Fluxing: The clean steel is dipped into a flux solution, usually containing zinc ammonium chloride, to remove any remaining oxides and provide a protective layer on the surface.

3. Galvanizing Bath: The steel is then immersed into a molten zinc bath, typically maintained at a temperature of around 450-460°C. The steel reacts with the liquid zinc, forming a metallurgical bond with the zinc coating.

4. Withdrawal: After a specified period of time, the steel is lifted out of the bath. As it is removed, excess zinc is allowed to drain off the surface.

5. Quenching: The coated steel is then typically quenched in a water or air stream to solidify and cool the zinc coating.

6. Inspection: The galvanized steel is inspected for uniformity, adherence, and appearance. Any defects or imperfections are documented and may require corrective measures.

7. Finishing: The galvanized steel may undergo additional finishing processes such as passivation or chromate conversion coating to further enhance the corrosion resistance and aesthetic appearance.

8. Packaging: After finishing, the galvanized steel is usually packaged and shipped to the desired location.

9. Maintenance: Over time, the zinc coating on the galvanized steel may corrode due to exposure to environmental factors such as moisture and chemicals. Regular inspection and maintenance may be required to assess the condition of the coating and address any corrosion issues.

10. Recycling: At the end of its useful life, the galvanized steel may be recycled by melting it down and reusing the zinc in new galvanizing processes or other applications.