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HaiGang Yunyi
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Tianjin Haigang Steel Coil
Service first, quality assured. More dedicated and focused on crafting even better boards.
17
2021
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11
Comparison between Continuous Annealing Furnaces for Cold-Rolled Sheets and Continuous Annealing Furnaces for Hot-Dip Galvanizing
|
Serial number |
composition |
Continuous Annealing Furnace for Cold-Rolled Sheets |
Serial number |
composition |
Hot-dip galvanized continuous annealing furnace |
|
1 |
Preheating section |
Preheat with exhaust gas from the heating section. Strip steel, bringing the strip temperature to 180 Celsius Left and right |
1 |
Preheating section |
Use the exhaust gas from the heating section to preheat the steel strip, bringing its temperature up to... 250 Celsius |
|
2 |
Heating section |
The steel strip is heated using a radiant tube equipped with an air preheater. The furnace is filled with a protective gas and reaches a temperature of... 730 Celsius , approximately time 1min |
2 |
Heating section |
Heating is performed using radiant tubes equipped with an air preheater. The furnace is filled with a protective gas and reaches a temperature of... 730 ℃, approximately 1 minute |
|
3 |
Equalizing section |
The strip steel is held at the annealing temperature for approximately: 1min The heating system has the same structure as the furnace’s heating section. |
3 |
Equalizing section |
Steel strip insulation approximately 20s It uses resistive heating elements for heating, and requires low power during large-scale production. |
|
4 |
Jet cooling, High-hydrogen quenching with rapid cooling |
Cooling by jetting protective gas to rapidly cool the strip steel. Cool to 560 Celsius , Cooling rate of high-strength steel 180 Celsius /s |
4 |
Cooling section |
The strip steel is cooled by adopting a protective gas-circulating jet cooling method. 460 ~ 520 Celsius |
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5 |
Reheating section |
Use Natural gas radiant tube heating heats the strip steel to... 450 Celsius |
5 |
None |
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Galvanized strip steel
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We primarily produce various products including galvanized strip steel, pickled strip steel, and cold-rolled strip steel. These products are widely used in industries such as construction, mechanical manufacturing, automotive, and household appliances.
Contact usContact Information
Company address:
Shuangtang High-end Hardware Products Industrial Park, Jinghai District, Tianjin City
Contact phone number:
Corporate email:
tjhaigang@tjhaigang.com
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