Shenzhen fan road exhibition factory teaches you how to distinguish fake and inferior steel: to guarantee the quality of the display!
1.The appearance of fake and inferior steel is often surface.The surface is caused by the uneven surface of the steel surface due to the wear of the groove.Because the fake steel manufacturer wants to pursue profit, often appears the groove rolling is the highest standard.
2.The surface of fake steel easily produces scar.There are two reasons: fake and inferior steel material is not uniform, impurity is much.Fake and inferior material manufacturer guide sanitation equipment is simple, easy to stick steel, these impurities bite a person roll after easy to produce scar.
3.And inferior material surface cracks easily, because its billet is adobe, adobe air, adobe in the process of cooling due to the effect of thermal stress, cracks, after rolling there is crack.
4.Fake and inferior steel is easy to scratch, because of shoddy equipment, easy to produce burr, scratch steel surface.Deep scratches reduce the strength of steel.
5.Fake and inferior steel has no metallic luster, it is reddish or similar to the color of pig iron, for two reasons.The temperature of the fake and inferior materials is not standard, their steel temperature is through visual inspection, so that it cannot be rolled in the regulated austenite region, and the performance of the steel cannot meet the standard.
6.And inferior steel transverse reinforcement and low, often appear as disgruntled phenomenon, the reason is that some manufacturer to achieve big minus tolerance, finished product quantity of the previous way slants big, small iron type, groove filling.
7.And inferior steel oval cross section, the reason is some manufacturer for managing material, finished product roll before the quantity of the two way slants big, the strength of rebar is greatly decreased, but also do not conform to the standard of rebar shape size.
The above article is provided by shenzhen fan road display cabinet manufacturer, 20 years display cabinet design experience, 2018 will help you to rapidly improve the brand value.