Classification of rolls

Roll is an important part of the mill, roll by the mirror body, lifting the neck and the head of the three parts of the composition of the roll, it is to determine the efficiency of the mill and the quality of the rolled material is important to consume parts. The following small editor for you to introduce the classification of the roll series, as follows.


First, according to the type of mill
1, flat rolls: that is, strip mill rolls, its silver body is cylindrical.
2, with groove rolls: it is used for rolling large, medium, small and various types of steel, wire rod and the initial rolling of the bad.
3, special rolls: it is used for steel pipe mill, wheel mill, steel ball mill and piercing machine and other specialized mills.
Second, according to the roll surface hardness can be divided into: 1, soft roll: used for steel tube mill, wheel mill, steel ball mill and piercing machine and other specialized mills.
1, soft roll: used to open the bad machine, large steel mill roughing mill, etc., Shaw’s hardness of about 30 ~ 40HS.
2, semi-hard rolls: for large, medium, small steel mill and plate mill roughing mill, Shore hardness of about 40 ~ 60HS.
3、Hard facing rolls: used in finishing mills of thin, medium, medium and small section steel mills, with Shore hardness of 60~85HS.
4、Exceptionally hard rolls: Shore hardness of about 85~100HS, used in cold rolling mills.

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