Introduction
Cold rolled ribbed steel bars are popularly used in reinforced concrete construction. Compared with cold-formed steel, it has its own characteristics, dedicated production technology and superior performance, which makes it popular in the construction industry. This article will introduce the characteristics and manufacturing technology of cold-rolled ribbed steel bars.
Features of Cold-Formed Steel
Cold-formed steel is made of cold-formed reinforcing steel. The main feature of this steel is that it has a certain rib shape on the surface which can greatly improve the bond strength of planar concrete and reinforcing steel bars and make it more anchored with the concrete. This steel has good integrality, high tensile strength, good waveform and high bearing capacity, which is suitable for reinforced concrete buildings with a height of more than 10 storeys. The high yield strength of cold-formed steel makes it easy to process and transport. Because of these features, currently cold-formed steel has become a prevailing reinforcing material in many construction projects.
Manufacturing Technology of Cold-Formed Steel
Cold-formed steel is mainly produced by cold rolling process. This process mainly uses rollers to roll ribbed steel bars and deforms the surface of steel bars to form longitudinal and circular ribbons. During the production process, under the pressure of therollers, the surface of the steel bars is unevenly elongated and is equipped with helical edges, which form the rib shape on the surface.
The dross generated in the rolling process is then filtered out through a screening process. Afterwords, the semi-finished products are sent to the straightening and cutting machine for cutting and straightening, then the reinforcing rods with required length and section size, equal strength and tensile strength will enter the market. As the automatic production process, the quality of steel bars is strictly controlled.
Conclusion
Cold-formed steel has certain features due to its production technology. Its superior performance and unique characteristics, coupled with its cost-effectiveness, make it the preferred choice of reinforced concrete buildings. This article has specifically discussed the characteristics and manufacturing technology of cold-rolled ribbed steelbars.
