Technical Characteristics of Cold Rolled Ribbed Bar Production Line

The technical characteristics of the cold-rolled ribbed steel bar production line are that the whole line adopts PLC + frequency conversion control, which has a high degree of automation and can realize the tension control, automatic feeding, automatic shearing and other automatic control of the whole line, and some equipment has PLC automatic control. It can realize the functions of automatic paying-off, pre-straightening, automatic detection, automatic protection, automatic counting, automatic shearing, and automatic shutdown upon completion [17-18]. The heating system adopts IGBT intermediate frequency/ultra-audio frequency power supply, with temperature tracking control function, fast heating speed, accurate temperature control and low ton consumption. The inductor is optimized, with high heating efficiency and can be replaced quickly.

The rolling speed range is wide. The ordinary low-speed line produces Φ6 mm specification at a speed of about 220m/min, and the high-end high-speed line can reach 1700m/min. The diameter range of the finished product covers φ5-11 mm or Φ5.5mm ~ Φ16 mm [17-18]. The tensile strength of the product can reach 620 MPa, the yield strength 560 MPa, and the elongation ≥ 18% (A) [17].

The whole manufacturing process only needs electric heating, does not need to burn coal, does not produce waste water, waste gas and waste residue, does not need to add any alloy elements, and belongs to a low-carbon environment-friendly process.