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Is silicon steel brittle?

Sep 15, 2023

Silicon steel sheets can be divided into low silicon and high silicon according to their silicon content. Low silicon wafers contain less than 2.8% silicon. They have a certain mechanical strength and are mainly used to make motors, commonly known as motor silicon steel sheets. High silicon wafers contain 2.8%-4.8% silicon. They have good magnetism but are brittle and are mainly used for Used in manufacturing transformer cores, commonly known as transformer silicon steel sheets. There is no strict boundary between the two in actual use, and high-silicon wafers are commonly used to manufacture large motors.

 

Silicon steel, also known as electrical steel, is not inherently brittle in its standard state. It is typically produced in a form that allows for flexibility and deformation during manufacturing processes. However, the brittleness of silicon steel can be affected by various factors, including its composition, processing methods, and any heat treatments it undergoes.

In some cases, specific treatments or conditions can lead to changes in the material's mechanical properties. For example, certain heat treatments or cold working processes may increase the material's hardness, which could potentially make it more susceptible to brittleness.

 

Overall, while silicon steel is not considered inherently brittle, its mechanical properties can be influenced by various factors, and it's important to consider these factors when working with or designing components made from this material.

 

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What factors affect the performance of silicon steel sheets?

 

The production of silicon steel sheets is widely used in the cores of various transformers, motors and generators due to its complex process, narrow process window and difficulty in production. However, silicon steel sheets can also have good or poor performance, which affects the performance of silicon steel sheets. What are the factors? Today I would like to share with you the factors that influence the performance of silicon steel sheets.

 

One of the factors that affect the performance of silicon steel sheets: the silicon content of silicon steel sheets and the amount of silicon impurities have a great impact on the performance of silicon steel sheets. A relatively high silicon content will increase the resistance of silicon steel sheets, thereby reducing the impact on the silicon steel sheets during application. The loss of iron, but too much silicon, will also affect the texture of the silicon steel sheet, making the silicon steel sheet brittle and difficult to process.

 

The second factor affecting the performance of the silicon steel sheet: the thickness of the silicon steel sheet. The eddy current loss in the iron core of the silicon steel sheet is proportional to the square of the thickness of the steel sheet. The thinner the silicon steel sheet, the smaller the iron loss consumption of the silicon steel sheet, so we choose When choosing silicon steel sheets, you must choose silicon steel sheets of appropriate thickness.

 

The third factor that affects the performance of silicon steel sheets: the size of the grains. The larger the grain size of the silicon steel sheets, the larger the magnetic domain size, and the eddy current loss and abnormal loss will increase. Therefore, when selecting silicon steel sheets, pay attention to the size of the grains, which is one of the important factors affecting the properties of silicon steel sheets.

 

The fourth factor that affects the performance of silicon steel sheets: the actual material of silicon steel sheets. Different manufacturers use different materials to produce silicon steel sheets. In order to reduce costs, some manufacturers use inferior materials during the processing of silicon steel sheets, resulting in poor performance of silicon steel sheets. reduction, which is also one of the key influencing factors.