1.Process Description Rolling Process Description:Roll ￠ 280 × 600mm, the first rolling mill is a three high rolling mill with a roll surface width of 600mm. Three passes are opened on the three rolls for three rounds of rolling - automatically entering the second three high rolling mill with a roll surface width of 600mm and four passes on the roll surface for four rounds of rolling - automatically entering the third three high rolling mill with a roll surface width of 600mm and four passes on the roll surface for four rounds of rolling - automatically entering the fourth three high rolling mill with a roll surface width of 600mm, Open four passes on the roller surface for repeated rolling four times - automatically enter the fifth two high rolling mill, and open two passes on the roller surface for two rounds of rolling.

The rolling of steel bars is arranged according to the diameter of the production process. The initial rolling of the first, second, and third three roll rolling mills is basically continuous, and the fourth and fifth rolling mills are adjusted to produce steel bars with different diameters into different pass shapes.

The rolling of flat steel requires the replacement of rollers. The first and second three high rolling mills have basically the same initial rolling, while the third, fourth, and fifth rolling mills enter different passes to roll flat steel of different specifications.

The advantages of a 5-stand multi-purpose longitudinal rolling mill include: 1. Utilizing the characteristics of a three-roll rolling mill, multiple passes are opened on a set of rollers, allowing for the movement of steel billets up, down, left, right, and rolling. 2. Compact structure and small footprint. 3. Save equipment investment. 4. Save investment on rolling rolls. 5. Easy to operate, changing specifications only requires adjusting the position of the guide.

2. Equipment Composition：Billet heating furnace - Three roll blooming mill - Three roll rolling mill - Three roll rolling mill - Three roll rolling mill - Three roll rolling mill - Two roll finished rolling mill, can be designed with supporting equipment such as medium frequency induction furnace and continuous casting machine

3. Technical specifications: capable of producing 6-32 steel bars and flat bars