差動調速φ250小型半連軋機組產品精度的研究——小型軋機技術改造研究之二

A study of product quality of semi-continuous Bar Mill By Differential Dual Drive

摘要: 本工作根據φ250mm×5+φ300mm×1半連續小型軋機力能參數、動態速降與成品尺寸分布的測試資料,著重對產品精度進行了統計分析,明確了“大頭—大尾”以及成品尺寸沿長度上高頻率波動的形成機理,應用電流記憶法估算了K₂—K₁機架間的張力水平;指出欲進一步提高產品精度、穩定連軋過程,必須開發型鋼連軋的微張力控制技術。

Abstract: Baysed on the investigation of experimental data in the D. D. D semi-continuous bar mill φ250mm×6, the following works have been studied:
1.The accuracy of product has been analyzed statistically.The mechanism of forming a bigger head and tail, and the fluctuation with high frequency in dimension along the product length has been made clear by the method of simulation.
2.The actual tension level between stands is estimated by the current data of D. C motor.
Thus, it is denoted that in order to further improve the product accuracy and rolling process stableness, the free tension control technique should be developed.