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Working conditions of the rolls

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The working conditions of the rolls are the most complex in the roll section. Residual stress and thermal stress are generated during the preparation process of rolls before manufacture and use. When used, it is further subjected to various cyclic stresses, including bending, torsion, shear, contact stress and thermal stress. The distribution of these forces along the roll body is non-uniform and constantly changing, due not only to design factors, but also to the constant changes in roll wear, temperature and roll shape in use.

 

In addition, the conditions of the rolls are often abnormal. Improper cooling of rolls after use can also be damaged by thermal stress. Therefore, in addition to wear and tear of the roll, various local and surface damages such as cracks, fractures, peeling, and indentations often occur. A good roll should have a good match between its strength, wear resistance and various other performance indicators.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_btn title=”About LMM GROUP” link=”url:https%3A%2F%2Fwww.lmmgroupcn.com%2Fabout-lmm%2F|target:_blank”][vc_column_text css=”.vc_custom_1649296177864{margin-top: 50px !important;}”]friendship Link:

LMM Totai Refractory, LMM Mill ROLLS, LMM CCM, LMM Mechanical Equipment, Intelligent industry, STEEL Metallurgy Industry[/vc_column_text][/vc_column][/vc_row]

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As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product  have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time.

LMM Main product series

Core technology products:

  • magnesia carbon brick
  • slide gate plate
  • graphite electrode

Core technology products:

  • Hss roller
  • cast steel rolls
  • tungten carbide ring roller

Core technology products:

  • copper mould tube
  • copper mould plate
  • assembly & cooling jackts

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As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product  have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time.

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