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伪劣镀锌圆钢的辨别方法

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【 发布于:2018-05-25 10:40:29 】


1、折叠是钢材表面形成的各种折线,这种缺陷往往贯穿整个产品的纵向。产生折叠的原因是由于伪劣厂家追求高效率,压下量偏大,产生耳子,下一道轧制时就产生折叠,折叠的产品折弯后就会开裂,钢材的强度大下降。

1, folding is a variety of broken lines formed on the surface of steel, which often runs through the longitudinal direction of the whole product. The reason for the folding is due to the high efficiency of the fake and inferior manufacturers, the big pressure, the ear, the folding when the next rolling is rolled, the folded product will crack after the bending, and the strength of the steel drops greatly.

2、伪劣钢材外表经常有麻面现象。麻面是由于轧槽磨损严重引起钢材表面不规则的凹凸不平的缺陷。由于伪劣钢材厂家要追求利润,经常出现轧槽轧制最超标。

2. The appearance of fake and inferior steel often has a facial appearance. Because of the serious wear of the groove, the surface of the steel is irregular and uneven. Because of the pursuit of profit by the inferior and inferior steel manufacturers, rolling groove rolling often exceeds the standard.

镀锌圆钢

3、伪劣钢材表面易产生结疤。原因有两点:1.伪劣钢材材质不均匀,杂质多。2。伪劣材厂家导卫设备简陋,容易粘钢,这些杂质咬人轧辊后易产生结疤。

3, the surface of fake and inferior steel is easy to produce scars. There are two reasons: 1. the material of the inferior steel is uneven and the impurities are numerous. 2. Counterfeit and inferior materials manufacturers are weak in guiding equipment and easy to stick to steel. These impurities tend to produce scars after biting the roller.

4、伪劣材表面易产生裂纹,原因是它的坯料是土坯,土坯气孔多,土坯在冷却的过程中由于受到热应力的作用,产生裂痕,经过轧制后就有裂纹。

4, the surface of the fake and inferior material is easy to crack. The reason is that the blank is the billet and the air hole is more. The crack is caused by the thermal stress in the process of cooling, and after rolling, there are cracks.

5、伪劣钢材容易刮伤,原因是伪劣材厂家设备简陋,易产生毛刺,刮伤钢材表面。深度刮伤降低钢材的强度。

5, shoddy steel easy to scratch, the reason is that fake and inferior materials manufacturers are simple equipment, easy burr, scratch the surface of steel. Deep scraping reduces the strength of the steel.

6、伪劣钢材无金属光泽,呈淡红色或类似生铁的颜色,原因在于它的坯料是土坯。

6, shoddy steel has no metallic luster, it is light red or similar to pig iron color, the reason is that its blank is adobe.

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