The roller ring is the key spare part of the roll. In the process of steel rolling, the roller body undertakes the rolling task of the billet. After repeated repair, the worn roller ring will be forced to scrap and need to be stripped from the shaft. Due to the structural design of the roller ring, it is not possible to use the pressing machine for dismantling, and can only implement scrapping cutting. In this regard, the comprehensive maintenance team in the cutting operation constantly explore both efficient and safe roller ring cutting methods. However, because of its added alloy material, the roller ring is not only wear-resistant to pressure, but also more resistant to high temperature. In gas cutting operation, the roller ring often breaks and splashes after expansion, and the operation efficiency is low and difficult, and there is a certain safety risk, which becomes the problem that the workers are worried about in the operation. In this regard, the staff pooled their wisdom and decided to use the discarded section steel packing belt to make a protective ring, which was connected and fixed by bolts. Each cutting operation would put the protective ring tightly on the roller ring and fix it, so that even if the roller ring expanded, it would not burst, effectively ensuring the operation safety.
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