冷轧扭钢筋是在改革的大潮中，由我国自行研制的新型钢筋应用技术。据不完全统计，目前全国冷轧扭钢筋已建有生产线约５００条，大多都在正常运转，其发展迅速的原因如下。１节材、节能、高效，是冷轧扭钢筋应用技术发展的根本原因冷轧扭钢筋可节约钢材４０％左右，同时还带来 Cold-rolled and twisted steel bar is a new type of reinforcing bar application technology developed by China in the tide of reform. According to incomplete statistics, at present, there are about 500 production lines for cold-rolled and twisted steel bars in the country. Most of them are in normal operation. The reasons for their rapid development are as follows. 1 Materials, energy saving, and high efficiency are the basic reasons for the development of cold rolling and twisted steel reinforcement technology. Cold rolled and twisted steel bars can save about 40% of steel, and at the same time bring about