Iron and steel production processes.

Production of iron and steel includes the following steps.

1. To get minerals and squandering.

2. Annealing and cooking ingredients.

3. Foundry.

4. The process such as forming iron shots.

Products through Step 4 and then go through a progression that can be. Industry continued. To produce a variety of types of usage such as construction materials, container, tank pressure pipes, automotive parts. Electrical machinery and so on.

In Thailand, iron and steel production will start from the intermediate annealing and casting.

1. To get minerals and squandering.

Author of mineral ore is to be converted into the right size and features to squander such as grinding iron ore to extract the information from the stigma then. May be separated based on different specific gravity (Float) or by magnetic separation (Magnetic separation), the minerals that are too detailed. To bale. (Agglomeration) before entering into oven squander.

Squandering iron ore is converted into steel to increase purity. (% Increase of iron) by removing various contaminants. From iron ore.

2. Annealing and cooking ingredients.

Annealing steel is to heat the steel squandering (Pig iron) or steel, perforated steel scrap to make steel melt temperatures (approximately 1600 ° C).

For steel production. In this annealing process. Will improve the mix of steel by a chemical oxidation as to reduce the amount of carbon and phosphorus. The compounds are added. To reduce the amount of additives and chemicals making steel features desired. . In this process. Contaminants, mainly oxide compounds. Sponsors of the elements that need musical folk drama. To separate the metals from water. We run a separate contaminants that Slag.

3. Foundry.

Cast iron is bringing the steel to melt, then garnish

ingredients in a Hotel for the coagulation of the desired shape.

The cast can be divided into 2 a share.

1. Ingot casting is a casting of water into a steel foundry Tech is not moving (Stationary mold) to cast the ingot (Ingot).

2. Continuous casting (Continuous casting) is the melt water to flow through a steel foundry (Mold) and continued to freeze. "Semi-product success" is Billet, Bloom or Slab, which can be cut and processed through the following processes.

Continuous casting currently popular. Since led to the increase in productivity was (Yield), improve quality, increase productivity and efficiency of investment.

4. The process.

The process is fabricated steel to melt to get the shape and size desired. In addition to improving commercial properties of steel products also. The process includes the processing of hot and cold processing.

For plates over the hot iron can then be used to direct certain. But for some plates will be reduced in size by cold rolled. To get the desired thickness and other reasons as follows.

1. To improve the quality of the skin.

2. To provide desired mechanical properties.

3. To have a thickness less than hot rolled.

4. To control the thickness of the low discrepancy.

Because the iron is hot rolled low over the evening. Therefore, in certain plates are produced from the iron was hot to size up one before. Then cold rolled to make.

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