全钢载重子午线轮胎0°带束层压延长度和张力差异的原因分析及解决措施

Causes Analysis and Solutions for Difference in Calendering Length and Tension of 0°Belt of All-steel Truck and Bus Radial Tire

分析全钢载重子午线轮胎双条0°带束层压延导开后左右两侧长度和张力差异的产生原因,并采取相应解决措施。产生原因包括储步装置两侧质量差异、0°带束层厚度对称性差异、钢丝帘线排线板结构设计不合理、锭子架钢丝帘线放线张力差异和终炼胶门尼粘度过大等,通过采取确保储步装置两侧质量对称、优化0°带束层口型设计、优化钢丝帘线排线板结构设计、改进锭子架钢丝帘线放线张力控制系统和严格控制终炼胶门尼粘度等措施,有效解决了双条0°带束层压延导开后左右两侧长度和张力差异问题。

The causes for the differences in length and tension between the left and right sides of the double 0°belt of all-steel truck and bus radial tire after calendering and guiding were analyzed,and corresponding solutions were taken.The main causes were the weight difference on the two sides of the step storage device,the symmetry difference in the thickness of the 0°belt,the unreasonable structure design of the steel cord layout plate,the difference in the laying out tension of the steel cord on the spindle frame,and high Mooney viscosity of the final compound.By taking correction actions such as ensuring the equal weight on both sides of the step storage device,optimizing the design of the 0°belt die,optimizing the structure design of the steel cord layout plate,improving the laying out tension control system of the steel cord on the spindle frame and strictly controlling the Mooney viscosity of the final compound,the problem of the length and tension differences between the left and right sides of the 0°belt after calendering and guiding was effectively solved.