提升斜辊矫直机矫直质量的工艺研究
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摘要
为了提升斜辊矫直机矫直质量,以生产线配备的6CR9型六辊斜辊矫直机应用为例,针对当前钢管矫直存在的直线度不佳、管头压扁、管端矫伤、椭圆度超标、辊痕较深等问题,分析了产生这些问题原因。分析认为,压弯挠度、压扁量、矫直辊斜角、矫直速度等工艺参数的配置不合理是影响矫直质量的主要原因。在钢管矫直过程中,需结合钢管材质、规格及原始弯曲度等参数,在理论计算的基础上,结合生产实践及测量数据,进一步优化和匹配各工艺参数,以达到提升矫直质量的目的。
In order to improve the straightening quality of the inclined roller straightening machine,the 6CR9 six-roller inclined roller straightening machine equipped with the production line is taken as an example,the straightness of the straightening of the steel pipe is not good,the pipe head is flattened,the pipe end is corrected,and the ellipticity is problems such as exceeding the standard and deeper roll marks were analyzed. According to the analysis,the unreasonable configuration of process parameters such as bending deflection,flattening amount,straightening angle and straightening speed is the main reason that affects the straightening quality. In the straightening process of steel pipe,it is necessary to combine the parameters of steel pipe material,specification and bending degree,and further match optimize each process parameter based on data measurement and theoretical calculation,in order to improve the straightening quality.
In order to improve the straightening quality of the inclined roller straightening machine,the 6CR9 six-roller inclined roller straightening machine equipped with the production line is taken as an example,the straightness of the straightening of the steel pipe is not good,the pipe head is flattened,the pipe end is corrected,and the ellipticity is problems such as exceeding the standard and deeper roll marks were analyzed. According to the analysis,the unreasonable configuration of process parameters such as bending deflection,flattening amount,straightening angle and straightening speed is the main reason that affects the straightening quality. In the straightening process of steel pipe,it is necessary to combine the parameters of steel pipe material,specification and bending degree,and further match optimize each process parameter based on data measurement and theoretical calculation,in order to improve the straightening quality.
引文
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[2]王秀军,李强,贾志刚.斜辊钢管矫直机矫直力计算分析[J].焊管,2002,25(2):26-28.
[3]陈凯凯,齐明侠,杨伟超,等.基于相对挠度的钢管矫直理论及其实验验证[J].锻压技术,2014,39(2):123-127.
[4]刘保平,刘才溢,刘志亮,等.管材十辊矫直机矫直过程与矫直精度分析[J].锻压技术,2014,39(7):73-79.
[5]左雁冰,张超,黄维勇,等.斜辊式矫直机矫直钢管的压扁量等参数的研究[J].重型机械,2013(5):35-37.
[6]李连进.薄壁无缝钢管的精密矫直方法研究[J].钢管,2011,40(6):30-33.
[7]杜友良.六斜辊矫直机的矫直辊辊形及其安装角的设计[J].天津冶金,2015(2):55-57.
[8]崔甫.矫直原理与矫直机械[M].第2版.北京:冶金工业出版社,2005.
[9]宋华,王德斌,杜春生.斜辊钢管矫正机主要设计参数的选择及其对矫正质量的影响[J].机械设计,1999(11):38-40.