Resolution of the ribbed bar stacking in reducing sizing mill zone of high-speed wire rod rolling line;

Development of the ribbed bar according to ASTMA615M-96a;

This paper introduces the creating of high benefits from hot-rolled ribbed bar with less competition,relying on management and scientific and technical progress.

90 standard pull-out specimens were used to study the bond behavior of GFRP ribbed rebars to concrete.

A Study on Strengthening Mechanism of Vanadium Microalloyed Hot Rolled Rebar;

The longitudinal extension distributed in the rebar has been studied.

Introduction of production reinforced bar by high-speed wire mill;

With statistic method the quality feature values of chemical composition and mechanical properties of HRB400 reinforced bar are analyzed,its fatigue,welding,mechanical linking and sticking properties are checking analyzed.

The reason of occurrence of calabash like head on large size hot rolled reinforced bar and the method to resolve it are discussed.

Factors of influencing the pressed sleeve splicingquality of ribbed steel bars;

The main reason of the welding brittle fracture for 20MnSi ribbed steel bars is owing to high carbon equivalent and unusual metallurgical structure,the method of the control the carbon equivalent and finishing temperature is put forward through the simulation tests,examination and statistical analysis according to the brittle fracture phenomenon of the welded 20MnSi reinforced bar.