從金屬學(xué)角度來看，熱軋與冷軋的界限應(yīng)該以金屬再結(jié)晶的溫度來區(qū)分，即低于再結(jié)晶溫度的軋制為冷軋；高于再結(jié)晶溫度的軋制為熱軋。而鋼的再結(jié)晶溫度一般在450℃～600℃范圍之內(nèi)。

From the point of view of metallization, the boundary between hot rolling and cold rolling should be distinguished from the temperature of recrystallization of metal, that is, the rolling that is lower than the recrystallization temperature is cold rolling, and the rolling that is higher than the recrystallization temperature is hot rolling. The recrystallization temperature of steel is generally within the range of 450 ~ 600.

切分刀粘鋼是如何引起的？（1）切分孔型老化，切分孔出來的料在切分契尖處較厚，增加了切分刀的切分負(fù)荷；Theappearanceoftherollingmillsupportrollisabout1HS45,whichisnormallyobservedontheother1sides,andtheenvironmentwilloccur。（2）切分道和孔型不對中，使切分刀不能順利切開料型，引起粘鋼；（3）切分處冷卻水冷卻效果不好，導(dǎo)致粘鋼；（4）料型控制不好，或有條頭和開花頭現(xiàn)象，使切分刀不能順利切開料型。

How does the slitting tool stick to the steel?

(1) the slitting hole is aging. The cutting hole is thicker at the cut point and the cutting load is thicker. (2) the cutting section and the pass are not in the middle, so that the cutting tool can not cut the material well and cause the sticky steel. (3) the cooling effect of the cooling water is not good, and (4) the  of the material type is not good, or there is a strip head and the flower head phenomenon, so that the cutting knife can't go smoothly. Cut the material type.

因?yàn)樗牧械亩虉A柱軸承在外圈上是可以脫落的，所以，也可以將內(nèi)圈之間安裝于軋輥在輥頸上，并將外圈安裝在軸承座的內(nèi)部。 我們從軋鋼機(jī)整個(gè)裝配的過程來看，軋鋼機(jī)中軸承以及軸承座在受力的情況上都是比較良好的.

Because the four columns of short cylindrical bearings can be shedding in the outer ring, the inner ring can also be installed between the roller and the roll neck, and the outer ring is installed inside the bearing seat. In terms of the whole assembly process of rolling mills, the bearings and bearing housings in rolling mills are relatively good in force.