钢材的性能主要取决与钢材***结构及化学成分。通过生产实践表明，钢的***是影响钢材性能的决定性因素，而钢的***由主要取决于化学成分和轧制生产过程，因此通过控制生产工艺过程，和工艺制度来控制钢材***结构状态，是轧钢工作者的重要任务。

The properties of steel are mainly dependent on the structure and chemical composition of the steel. The production practice shows that the microstructure of the steel is a decisive factor affecting the performance of steel, and the microstructure of the steel is mainly depends on the chemical composition and rolling process, so by the production process and process system of steel structure, steel rolling is an important task of the work.

轧钢生产对原料有一定的技术要求比如钢种，断面形状和尺寸，重量表面质量等。这些技术要求的考虑是保证钢材质量所必须的。也是确定和选择坯料时应具体要考虑的内容。

Steel rolling production has some technical requirements for raw materials such as steel, section shape and size, weight surface quality and so on. These technical requirements are cidered to be necessary to ensure the quality of the steel. It is also the content that should be cidered when determining and selecting the blank.

因为四列的短圆柱轴承在外圈上是可以脱落的，所以，也可以将内圈之间安装于轧辊在辊颈上，并将外圈安装在轴承座的内部。 我们从轧钢机整个装配的过程来看，轧钢机中轴承以及轴承座在受力的情况上都是比较良好的.

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.