Aisi 410 420 430 Ss Round Rod 15mm 16mm 17mm 18mm Stainless Steel Bar

flow of bar production line: billet acceptance → heating → rolling → double-length shearing → cooling → shearing → inspection → packaging → measurement → storage.

Small bars are produced by small rolling mills. The main types of small rolling mills are: continuous, semi-continuous and tandem. At present, most of the new and in-use small rolling mills in the world are fully continuous. Today's popular rebar mills include general-purpose high-speed rolling rebar mills and 4-slice high-production rebar mills. The billet used in the continuous small rolling mill is generally a continuous casting billet, its side length is generally 130~160mm, and there are also 180mm × 180mm, the length is generally about 6~12 meters, and the single billet weight is 1.5~3 tons. Most of the rolling lines are alternately arranged horizontally and vertically to achieve torsion-free rolling across the entire line. The number of stands is determined according to the principle of rolling one stand. Most of the rolling mills are even-numbered pass combinations. For different billet specifications and finished product sizes, there are 18, 20, 22 or even 24 small rolling mills, and 18 are the mainstream. Adjustable speed, micro-tension and tension-free rolling are the obvious features of modern fully continuous small rolling mills. Part of the racks of rough rolling and intermediate rolling are under micro tension control, and part of the racks and finishing mills of intermediate rolling are under tension-free control to ensure the dimensional accuracy of products. Continuous rolling mills are generally equipped with 6 to 10 loopers, and some even have as many as 12 loopers.