(1)软辊；肖氏硬度约为30一40，用于开坯机、大型型钢轧机的租轧机等。

(2)半硬辊：肖氏硬度约为40一60，用于大型、中型、小型型钢轧机和钢板轮机的租轧机。

(3)硬面辊：肖氏硬度约为60一85，用于薄板、中板、中型型钢和小型型钢轧机的稿轧机及四辊轧机的支撑辊。

(4)特硬辊le氏硬度约为85—100，用于冷轧机。

(1) soft roll; the hardness of Shaw is about 30 40. It is used for the renting rolling mill of the billet machine and the large steel mill.

(2) semi hard roll: the hardness of the Shaw is about 40 to 60. It is used for the renting rolling mill of large, medium, ***all type steel mill and steel plate turbine.

(3) hard roll: Shore hardness of about 60 to 85, for supporting roller mill release sheet, plate, medium and ***all steel mill and four roller mill.

(4) the hardness of the hard roll Le is about 85 - 100 for cold rolling mill.

轧辊中大量使用合金元素是在第二次以后，这是轧钢设备朝着大型化、连续化、高速化、自动化发展以及轧材强度提高、变形抗力加大后对轧辊性能提出更高要求的结果。

A large number of alloying elements in the rolls are produced after the Second World War.the result of rolling mill's large performance, continuous, high-speed and automatic development, as well as the increase of rolling strength and resistance to deformation.

按轧辊材质分有钢轧辊、铸铁轧辊、硬质合金轧辊、陶瓷轧辊等；按制造方法分有铸造轧辊、锻造轧辊、堆焊轧辊、镶套轧辊等；按所轧钢材状态分有热轧辊、冷轧辊。各种分类可以相应组合而使轧辊有更明确的含义，如热轧带钢用离心铸造高铬铸铁工作辊。

According to the roller material, there are steel rolls, cast iron rolls, hard alloy rolls, ceramic rollers, etc. according to the manufacturing method, there are casting rolls, forging rolls, hardfacing rolls, inlaid rolls and so on. According to the rolled steel status, there are hot rollers and cold rollers. Various classificati can be combined to make the roll more explicit, such as the casting of high chromium cast iron working roll for hot rolled strip.

轧辊具有粘着力，优异的抗压强度、耐磨性和抗腐蚀性等归纳功用，选用高分子复合材料在传动部位磨损规范相对较小的状况下可以现场免拆开修正。

The roller has super strong adhesive force, excellent compressive strength, wear resistance and corrosion resistance, and so on. The polymer material can be free from di***antling in the condition that the wear standard of the tran***ission part is relatively ***all.