Analysis and solution of error factors in X-ray thickness measurement of cold rolled strip
GUO Zijian
XUAN Lijian
ZHAO Jingbo
LAN Xiaodong
Abstract：The thickness gauge is the core equipment that determines the thickness control accuracy of cold-rolled strip steel.However,due to the comprehensive influence of temperature,water vapor,oil pollution,etc.,X-ray thickness gauges often have measurement deviations,which affect the longitudinal thickness difference accuracy of cold-rolled strip steel to varying degrees.Based on the above issues,the system summarizes the impact characteristics of industrial sites on the thickness measurement accuracy of X-ray thickness gauges,including the detection principle,hardware structure,process characteristics,and deviation factors.Specific maintenance measures and solutions are provided for factors such as the stability of X-ray sources and ionization chambers,electromagnetic interference,compensation of material alloys,thermal effects of X-ray tubes,strip steel detection positions,and dirt on detection windows.Based on on-site cases,the feasibility and effectiveness of the technical renovation plan have been verified,ensuring that the X-ray thickness gauge meets the requirements of high precision,high response,high sensitivity,non-contact,and no damage,and operates with high precision and no deviation for a long time,providing maximum guarantee for the accuracy and stability of rolling mill thickness control.
Keywords：X-ray thickness gaugealloy compensationrolling mill thickness controlerror factorscold rolled strip steel
Publication Date：2024-11-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 86-92 )