The existence of steel products is a relatively common product on the market today, it is the focus of many companies' production and recognition, u shaped steel is a common typical steel product, it is a research project that our company has been engaged in all the year round, about the basic cracking cause of u shaped steel, we gave you a brief summary.

Usually, when component segregation, the presence of gases and inclusions, and forging temperatures and forging ratios are misunderstood, there are more problems. Because the raw materials of u shaped steel often has banded segregation, component segregation remains after hot press processing, this quenching can be seen from the annealed structure after quenching. And it is precisely because of segregation, the u-shaped steel is heated in an oxidizing atmosphere close to the solidus line, easy to produce precipitates or impurities, be the main cause of defects.

Studied have shown, u shaped steel due to forging process, heat treatment process, etc, mixed microstructure and complex stress distribution after quenching, will cause cracking. Fragile workpiece, it is best to use a controlled gas multi-purpose furnace for austempering, high temperature tempering, etc, this effect will be more stable.

Henan Zongxiang Heavy Industry Import&Export Co.,ltd manufactures steel rails and railway fasteners. As a leading railway fasteners manufacturers in China,with production license of Chinese railway Ministry, advanced technology, high precision inspection instruments and service, our products have been widely exported the USA, Germany, Spain, Japan, Australia, Italy, Netherlands, Belgium, Poland, the UK, India, and South Africa etc.

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