How to make steel plate
Steel plates are an indispensable material in industrial production and are widely used in construction, automobiles, ships, machinery manufacturing and other fields. So, how are steel plates made? This article will introduce the production process of steel plates in detail, and attach relevant data to help readers better understand this process.
1. Steel plate production process
The production of steel plates is mainly divided into the following steps: steelmaking, continuous casting, hot rolling, cold rolling, surface treatment, etc. The following is a specific process description:
| steps | Description | key equipment |
|---|---|---|
| steelmaking | Smelting iron ore and other raw materials into molten steel | Blast furnace, converter, electric furnace |
| Continuous casting | Cast molten steel into billet | Continuous casting machine |
| hot rolled | The billet is heated and rolled into steel plates | hot rolling mill |
| cold rolled | Cold processing of hot-rolled steel plates to improve accuracy and surface quality | cold rolling mill |
| surface treatment | Galvanize and paint steel plates to enhance corrosion resistance | Galvanizing line, coating equipment |
2. Detailed explanation of steelmaking process
Steelmaking is the first step in making steel plates and is usually carried out in a blast furnace, converter or electric furnace. The following are common raw materials and output data in the steelmaking process:
| raw materials | Proportion (%) | function |
|---|---|---|
| iron ore | 60-70 | Provide iron |
| coke | 15-20 | Provide heat and reducing agent |
| Limestone | 5-10 | Remove impurities |
| scrap steel | 10-20 | recycling |
3. The difference between hot rolling and cold rolling
Hot rolling and cold rolling are two key links in steel plate production. The main differences between the two are as follows:
| Project | hot rolled | cold rolled |
|---|---|---|
| temperature | High temperature (about 1200°C) | room temperature |
| Thickness | Thicker (1.2-25mm) | Thin (0.2-3mm) |
| surface quality | Rough | smooth |
| Purpose | buildings, bridges | Automobiles, home appliances |
4. Surface treatment of steel plates
In order to improve the corrosion resistance and aesthetics of steel plates, steel plates are usually surface treated. The following are common surface treatments and their characteristics:
| Processing method | Features | Application areas |
|---|---|---|
| galvanized | Strong corrosion resistance and low cost | construction, cars |
| Paint | Rich colors and beautiful | Home appliances, decoration |
| chrome plated | High gloss, wear-resistant | Hardware, bathroom |
5. Future development trends of steel plate production
With the advancement of science and technology, the steel plate manufacturing process is also constantly optimized. In the future, steel plate production will pay more attention to environmental protection, energy saving and intelligence. For example, the use of hydrogen energy steelmaking technology can reduce carbon emissions, while smart manufacturing technology can improve production efficiency and product quality.
In summary, the production of steel plates is a complex and precise process involving multiple links and technologies. Through the introduction of this article, I believe readers will have a deeper understanding of the production of steel plates.
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