U型管推彎彎管反彈動態(tài)補償?shù)难芯? />
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U型管推彎彎管反彈動態(tài)補償?shù)难芯?/h2>

王志健,

王奎

摘要: 為了避免U型管在推彎過程中因外徑、壁厚及熱處理性能的微小差異導致推彎時反彈的不同，從而影響彎曲半徑的尺寸偏差，通過采用彎管反彈動態(tài)補償?shù)姆椒?，計算在U型管推彎時控制或補償彎曲的反彈量，保證U型管彎曲半徑的精度。實際測量結果表明：通過實時的動態(tài)補償，對U型管彎曲半徑的修正可以達到25%以上。

Abstract: During the pushing-bending operation of the U-shaped tube，it is possible that the bending radius dimensional deviation is affected by the difference of rebounding that is caused by slight differences of the tube’s O.D.，W.T.and heat treatment properties.To avoid this undesirable condition，the method of bending-rebound dynamic compensation is used to find out the rebound amount that is needed for controlling or compensating the bending during the U-shaped tube pushing-bending operation so as to guarantee the accuracy of the tube’s bending radium.The actual measurement result shows that thanks to the real time dynamic compensation，correction value of the said U-shaped tube’s radium can be more than 25%.