轧辊的无损检测通常用超声波探伤仪进行。冷轧辊探伤标准中通常把辊身依受力情况分成表面区、中心区和中间区，然后依断裂力学原理分别规定各区允许存在的缺陷的临界尺寸。

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.

焊接时堆焊成败的关键环节，要获得理想的堆焊层必须综合考虑某些可变因素，如：焊接电压、焊接速度、轧辊转速、轧辊的保温、焊接电流、焊接材料等，对一些含碳及合金元素高的辊芯，为防止脆性区的裂纹，除一定的预热措施外，多采用低碳低合金过渡层进行预先堆焊过渡层。

In order to obtain an ideal surfacing layer， some variable factors must be cidered， such as welding voltage， welding speed， roll speed， roll insulation， welding current， welding material and so on. Some roll cores with high carbon and alloy elements，吊车轨， in order to prevent cracks in brittle zone， h***e to be cidered in order to obtain ideal surfacing layer. In addition， the low carbon low alloy transition layer is used to pre weld the transition layer.

初轧机、钢坯连轧机、大型型钢和轨梁轧机、热轧板带钢轧机破鳞和轧边机、型钢轧机的轧边机，吊车轨报价，还有小型型钢、线棒材轧机的粗轧机架等轧机使用的轧辊，大多采用整体铸造方法生产，这类轧辊使用层较厚，孔型较深。

The rolling mill of rolling mill，吊车轨厂家， billet rolling mill， large type steel and rail beam mill， hot rolled strip mill break scale，吊车轨哪家好， rolling edge mill， type steel universal mill， and rolling mill used in ***all steel and wire rod mill are mostly produced by the whole casting method， which is thicker and deeper.

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