軋輥產(chǎn)生彈性壓扁時可能軋制的板厚。運(yùn)用時又進(jìn)一步遭到了各種周期應(yīng)力的效果,包含有曲折、改變、剪力、接觸應(yīng)力和熱應(yīng)力等。在一定軋機(jī)上軋制一定的產(chǎn)品時，隨著板帶的逐漸變薄，壓下越來越困難。當(dāng)板帶薄至某一限度后，不管如何旋緊壓下螺絲或加大液壓壓下的壓力，不管反復(fù)軋制多少道，由于軋輥產(chǎn)生彈性壓扁而不可能再使產(chǎn)品變薄。這一極限厚度稱為可軋厚度。

The smallest plate thickness may be rolled when the roll produces elastic squash. When a certain product is rolled on a certain rolling mill, with the gradual thinning of the strip, it is becoming more and more difficult to press down. When the strip is thin to a certain limit, no matter how to tighten down the screw or increase the pressure of hydraulic pressure, no matter how many rolls are repeatedly rolled, it is  for the product to become thin due to the elastic flattening of the roll. This limit thickness is called the minimum rolling thickness.

軋輥的無損檢測通常用超聲波探傷儀進(jìn)行。冷軋輥探傷標(biāo)準(zhǔn)中通常把輥身依受力情況分成表面區(qū)、中心區(qū)和中間區(qū)，然后依斷裂力學(xué)原理分別規(guī)定各區(qū)允許存在的缺陷的臨界尺寸。

Nondestructive testing of rolls is usually carried out by ultrasonic flaw detectors. In the testing standard of cold roll, the roll body is usually divided into the surface area, the center area and the middle area according to the force condition, and then the critical dimensi of the defects are allowed in each area according to the principle of fracture mechanics.

軋輥是軋機(jī)的核心部件，軋輥的使用涉及軋機(jī)使用時的類型選擇、軋輥的準(zhǔn)備、在軋制過程中的維修和周期性修整，而這些都全是影響軋機(jī)生產(chǎn)率、產(chǎn)品質(zhì)量和生產(chǎn)經(jīng)濟(jì)性的因素。

Roll is the core part of the rolling mill. The use of the roll involves the type selection of the rolling mill, the preparation of the roll, the maintenance and the periodic dressing during the rolling process, all of which are all factors that affect the productivity of the rolling mill, the quality of the product and the production economy.

初軋機(jī)、鋼坯連軋機(jī)、大型型鋼和軌梁軋機(jī)、熱軋板帶鋼軋機(jī)破鱗和軋邊機(jī)、型鋼軋機(jī)的軋邊機(jī)，還有小型型鋼、線棒材軋機(jī)的粗軋機(jī)架等軋機(jī)使用的軋輥，大多采用整體鑄造方法生產(chǎn)，這類軋輥使用層較厚，孔型較深。

The rolling mill of rolling mill, billet rolling mill, large type steel and rail beam mill, hot rolled strip mill break scale, rolling edge mill, type steel universal mill, and rolling mill used in small steel and wire rod mill are mostly produced by the whole casting method, which is thicker and deeper.