“Can the broken bearing be repaired?” Before 2006, it was something Wu Jianhua, the chief of the cold rolling mill workshop of Baosteel Branch, never thought about. However, in the exchanges between Baosteel and the world-renowned bearing supplier Timken, this “never” has begun to make new changes.
The cold rolling mill workshop of Baosteel Branch, where Wu Jianhua is located, provides the roll assembly for Baosteel's cold rolling production line. Now the roll assembly on the cold rolling mill of Baosteel Branch is provided here. This workshop is directly related to the normal production of each cold rolling line. Since the rotating rolls are to be matched with the bearings, the quality of the bearings directly determines the stability of the rolls and rolling, which determines the quality of the cold rolled steel products. Therefore, Baosteel never dared to be sloppy in the choice of bearings. Always use the most quality guaranteed bearings. However, the new problem is now in front of him, that is, "there is money and can not buy bearings."
Baosteel's roll bearings are made of four-row tapered roller bearings with a hole diameter of more than 350 mm, which belongs to the category of large-aperture bearings. Since the service life of the bearing is affected by the working conditions, the working condition of the rolling mill can be called “extremely bad” when rolling, so Baosteel's rolling bearing has a certain amount of replacement after inspection and maintenance every year. According to Wu Jianhua, “From the overall market in the world, there are so many new cold rolling projects, so the demand for bearings is growing exponentially. In addition, the prices of metal raw materials have risen in the past two years, and there is some disconnection in the bearing supply of the entire market. The actual situation is that you have money but can't buy bearings! Especially in 2006 and 2007, the large-aperture bearing supply and demand market has the biggest contrast, and it is out of stock. The company is quite nervous in purchasing large-aperture bearings. Timken started Baosteel in 2006. Providing bearing repair services is still very timely."
Indeed, if the equipment is not working properly due to the shortage of bearings, the cold rolling mill and the subsequent production line are likely to stop. This responsibility and difficulty will definitely put a lot of pressure on the production line. The problem can be solved smoothly, of course, it makes people feel a bit angry. However, the benefits of bearing repair services for Baosteel are by no means just a matter of urgency. Recently, steel companies have been increasingly affected by the rapid rise in the price of iron ore raw materials, and the cost pressure is high. Therefore, how to save costs has become an important issue that all steel companies must consider. Baosteel is no exception. “Baosteel has been vigorously promoting cost reduction, which is also in line with national resource conservation requirements.”
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