Quenching process in heavy rail production is 'essential'

Edit:Zongxiang Heavy Industry--Ethan Date:2018-10-12 15:27:07

The existence of rail products is a typical presence in the market today, the production and sales of various rail products are also gradually becoming popular, among them, heavy rail is one of the common rail products, and the specific quenching process of heavy rail has meaning, I has briefly summarized for you.

1, Heating parameter selection: thermal simulation test method was used to study the relationship between heating temperature and austenite grain size, and impact toughness. Select 4 impact samples in each group to simulate the actual medium frequency induction heating. After heating to the set temperature for 3 to 5 minutes, the insulation is not kept. After cooling at a certain speed, the austensite grain size and impact toughness are measured.

2, Impact of heavy rail surface state: In the railway sector, the rails are fully quenched and their heavy rails are transported. During the transportation of the rails, the grease is applied to the support parts the multi-layer stack to reduce friction. During the heavy rail storage process, the surface of the rail head of the oil-free part will rust, while the oil part will be difficult to form the rust layer.

3, Cooling parameter selection: The transformation process of fast austenite to pearlite, improving the austenite transformation supercooling, and making the pearlite transformation proceed at a lower temperature to obtain fine flaky pearlite structure with both toughness and toughness.

The company has more than 20 years of experience in the steel industry, the company operates and sells a variety of types of rail and rail accessories, such as fish plate, tie plate, and rail turnout. The company has formed a strong sales system during its operation. We can provide customers with secondary processing of steel rails such as steel rail punching and cutting, and more importantly, we can provide customers with high-quality products and competitive prices.

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