What is the high strength ring chain made of?

RELEASE TIME :

2020-04-30

The quality and performance of the high strength ring chain used in mine as the traction component of the scraper conveyor will directly affect the working efficiency of the equipment and the coal output. High strength ring chain used in mining is a kind of consumable, which is easy to wear and damage in the process of use. Once fracture and damage occur, work efficiency will be affected.

Therefore, in addition to choosing products with excellent quality and technology, we should also master the correct use and daily maintenance of high strength ring chain for mining. In the daily use of high-strength chain should pay attention to the following matters:

1, and scraper conveyor sprocket and other accessories to the same size, accurate matching.
2, select the corresponding chain quality level.
3, according to the working conditions can choose anticorrosive ring chain. According to the situation of corrosive water in some coal mines, the anticorrosive ring chain which is basically not corroded by the external environment is selected.
4, as far as possible to avoid trauma, the weakest link of the chain determines the quality of all chains, in the process of consignment movement, according to the requirements of packaging, after arriving at the scene should also pay attention not to make the chain surface scratches.

So, what is the high strength ring chain for mining made of?
In view of the current production situation of high content noble metal alloy element 23MnCrNiMo54 ring chain for large mines, a new low cost Mn-Mo low carbon martensitic steel with no annealing after rolling was developed. The steel is primarily an alloy of manganese and molybdenum with small amounts of chromium, microalloyed niobium, and no valuable nickel. The CCT curve and hardenability of steel were determined, the microstructure and mechanical properties of steel under different heat treatment conditions were analyzed, and two kinds of c grade ring chains (26 mm92 mm, 30 mm 108 mm) for mining were manufactured under industrial conditions. The results show that the performance of large-scale chain products manufactured with new steel conforms to the national standard. Compared with the widely used 23MnNiCrMo54 steel, the production cost is significantly reduced, and it is a competitive material for large-scale chain manufacturing.

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