(1)軟輥；肖氏硬度約為30一40，用于開坯機、大型型鋼軋機的租軋機等。

(2)半硬輥：肖氏硬度約為40一60，用于大型、中型、小型型鋼軋機和鋼板輪機的租軋機。

(3)硬面輥：肖氏硬度約為60一85，用于薄板、中板、中型型鋼和小型型鋼軋機的稿軋機及四輥軋機的支撐輥。

(4)特硬輥le氏硬度約為85—100，用于冷軋機。

(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, small 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 small steel mill and four roller mill.

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

弄清軋輥的使用條件以及在同類型軋機中所用軋輥的失效方式，了解當(dāng)前各種軋輥材質(zhì)的性能和制造工藝，才能較正確地制定該軋機用輥的技術(shù)條件和選用合適而經(jīng)濟的軋輥材質(zhì)。

We must know clearly the condition of the roller and the failure way of the roll used in the same type of rolling mill, and understand the performance and manufacturing technology of all kinds of roller material at present, so that we can correctly formulate the technical conditi of the roller and choose the right and economical roller material.

軋機布置和道次設(shè)計  

機架在生產(chǎn)線的位置以及道次設(shè)計對軋輥的選擇有很大影響。根據(jù)機架位置，軋輥的受力方式和性能可以有很大變化。這是因為應(yīng)用于粗軋機架和精軋機架的軋輥有非常不同的受力方式，從而導(dǎo)致軋輥性能有預(yù)期的改變.

Rolling mill layout and pass design

The of the rack in the production line and the design of the pass have great influence on the choice of the roll. According to the  of the frame, the force and performance of the roller can be greatly changed. This ibecause the rolls used in roughing mill stand and finishing mill stand have very different forces, resulting in expected changes in roll performance.