Thick steel plates are very common in construction sites. This is a commonly used steel material. How to distinguish whether the thick steel plates are qualified? The following is an analysis of the quality defects and the causes of thick steel plates.
The first shortcoming of the thick steel plate: the surface layer has a lot of impurities that are not metallic materials, scattered all over the chaotic, arc-shaped, the hue is usually brown-red, light yellow, gray-black and its milky white; such shortcomings are produced in Some residues are stored on the surface of the thick steel plate when processing the thick steel plate, or other materials are accidentally left on the surface of the thick steel plate for production and processing, and are pressed into the thick steel plate during cold rolling.
The second shortcoming of the thick steel plate: the surface of the thick steel plate has an iron scale adhered to the surface layer, the thick iron plate is spread all over the surface of the thick steel plate or all areas, and some parts of the thick steel plate fall off quickly during application. The part is not easy to fall off; the reason for this kind of difficulty is that the slab heating standard is different when the thick steel plate is processed. The longer the heating time, the greater the probability that the oxide scale on the surface of the thick steel plate is converted into High, and it is also more difficult to fall.
The third shortcoming of the thick steel plate: the color tone of the surface layer of the thick steel plate is not the same, and the color tone of the whole thick steel plate is uneven; this is caused by the different temperatures of each part during production and processing.
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