冪函數(shù)減徑率的張力減徑機(jī)孔型設(shè)計(jì)

Roll Pass Design of Power Function Reduction Rate-based Stretch Reducing Mill

摘要: 介紹了三輥式張力減徑機(jī)的發(fā)展,以及張力減徑機(jī)孔型設(shè)計(jì)的常用方法。根據(jù)冪函數(shù)減徑率的張力減徑機(jī)孔型設(shè)計(jì)理論與Φ168 mm PQF三輥連軋管機(jī)組張力減徑機(jī)的特點(diǎn),設(shè)計(jì)了一套適合該張力減徑機(jī)使用的冪函數(shù)減徑率張力減徑機(jī)孔型。該孔型平衡了速度、溫度等對(duì)張力減徑機(jī)各組電機(jī)及減速箱的影響,特別是第2組電機(jī)的實(shí)際負(fù)載增加明顯。

Abstract: Elaborated in the paper are the development of the three-roll stretch reducing mill, and the commonly- used methods for roll pass design thereof. With the theory of pass design of power function reduction rate-based the stretch reducing mill, and the characteristics of the stretch reducing mill of the Φ168 mm PQF 3-roll mandrel mill plant, a package of roll passes of function reduction rate-based stretch reducing mill suitable for this stretch mill is designed. The pass package neutralizes the influence by the velocity and temperature on the groups of motors and gear boxes of the stretch reducing mill, and particularly, gets the actual loads of the No.2 group of motors and gear boxes remarkably increased.