rolling mill rolls material | LMM GROUP
LMM GROUP main products focus on the cold and hot plate & wide strip mill rolls and heavy section mill rolls and big casting & forging pieces. We can provide characteristic service and differentiated products according to the different conditions of rolling mill.
Sheet hot rolling mills begin with a continuously cast steel slab. Slabs must be free of surface defects. Slabs must be properly scarfed (removal of casting defects). Slabs must be manufactured from liquid steel to the proper chemistry. Once solidified, the chemistry cannot change.
Rolling (metalworking) - Wikipedia
Hot rolling is a metalworking process that occurs above the recrystallization temperature of the material. After the grains deform during processing, they recrystallize, which maintains an equiaxed microstructure and prevents the metal from work hardening.
High Speed Steel (HSS) cast rolls are used in front finishing stands of hot strip mills. Good wear resistance and hardness at high temperatures, are defining features of HSS.
Metallurgy of Rolling mill Rolls - IspatGuru
2019年11月13日 · Rolls are implements or tools used in rolling mills to reduce the cross section of the material being rolled. They are highly stressed tools and are subject to wear. They are needed both for the rolling of sectional as well as flat products.
Classification and material selection of rolls - rolling mill rolls ...
2023年7月31日 · Medium and small section steel rolls are generally divided into rough rolling, medium rolling and finishing rolling, and the material selection should be determined according to specific conditions such as the type of rolling mill, product …
Rolling mill Rolls and Roll Shop - IspatGuru
The types of rolls used in blooming and slabbing mill, billet and merchant bar mill, section mills, plate mill, and hot strip mill are given in Tab 2, Tab 3, Tab 4, tab 5 and tab 6 respectively.
Roll material and heat treatment process - HSS rolls manufacturer
2023年9月14日 · Hot rolling rollers often work in a high-temperature environment of 700°C to 800°C. They are in contact with the hot steel billet and need to withstand strong rolling force. At the same time, the surface has to withstand the strong wear of the rolled material and is repeatedly heated by the hot-rolled material and cooled by cooling water.
Cold and hot rolling mill roll materials and heat treatment process
2023年2月7日 · Selection of Traditional Hot Rolling Mill Roll Material and Heat Treatment Process. Hot rolling rolls often work in a high-temperature environment of 700°C to 800°C. They are in contact with hot steel billets and need to withstand strong rolling force. Subject to thermal fatigue with large temperature changes.
Design and Optimization of W-Mo-V High-Speed Steel Roll Material …
4 天之前 · When the chromium content is too high, on the contrary, it will be detrimental to the tempering stability of martensite and red hardness. In this paper, we study the mill roll-cover material for high strength and toughness of high-speed steel, with a chromium content of 4% to 5%. To summarize, the chromium content is determined as 4.5%.
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