QUESTIONS, ANSWERS, MORE QUESTIONS Twenty - five Years of Experience in Discussing Rolls and Rolling Technology

摘要

1. Roll makers and roll users frequently have to discuss experiences, performance results, special requirements of the mill. Roll failure problems can be solved by good co-operation. 2. To avoid misunderstandings and misinterpretations everybody should distinguish very carefully whether roll properties or the properties of the roll materials are concerned. 3. Statistical findings are useful for roll making to improve the process of roll production - statistical process control (SPC) is only applicable for (automated) mass production. 4. Theories are sometimes useful for (commercial) discussions and may help to create new ideas. However facts about roll performance (without and with loss of useful stock due to mill accidents) are most important for roll development. 5. The best way for roll makers to achieve better rolls is to ensure that better materials and improved manufacturing processes are used and that roll users take account of rolling conditions and improved rolling processes. Good and close co-operation between both sides is essential.