管厂出货变现为主预计未来贵阳脚手架市场价格持…贵阳市场主流脚手架价格持稳运行，日盘期螺呈宽幅震荡趋势运行，临近尾盘多空双方进行较量，最终期螺空头占据优势，收盘时大幅下调。唐山方坯今早张 10元，现普碳方坯含税出厂3610。今日起落一直徘徊在3900点位，…

让现已加工成制品脚手架具有较小曲折度还得依靠机械东西校直机来完结。所以为了消除脚手架曲折，一切脚手架都需求经过冷校直。脚手架曲折是因为轧机调整不妥，轧制时残留的剩余应力以及因为沿管子截面和长度上冷却不平等缘由形成的。因而，不行能从轧机直接得到很直的管子，只要通过冷校直管子的曲折度才干满意技能条件的规则。

To make the square tubes of the products processed now have a small degree of flexibility, we have to rely on the mechanical straightening machine to complete the straightening machine from east to west. Therefore, in order to eliminate the twists and turns of square tubes, all square tubes need to undergo cold straightening. The bending of square pipe is caused by improper adjustment of rolling mill, residual stress during rolling and unequal cooling along the section and length of pipe. Therefore, it is impossible to get very straight pipes directly from the rolling mill. Only by cold straightening the pipe's flexibility can the rules of skill conditions be satisfied.

校直的根本道理即是使脚手架进行弹塑性曲折，由大的曲折度成为小的曲折度，因而钢管在校直机内有必要遭到重复曲折。而钢管重复曲折的程度主要由校直机的调整所决议。

The basic principle of straightening is to make square pipe elastic-plastic twist, from large twist to small twist, so it is necessary for steel pipe to be repeated twist in straightening machine. The degree of repeated twists and turns of steel pipe is mainly determined by the adjustment of straightening machine.

影响校直质量的要素许多，如原管的曲折度，钢管尺度和材料校直机型式，调整参数等。

There are many factors affecting the quality of straightening, such as the bending degree of the original pipe, the size of the steel pipe and the type of straightening machine for materials, and the adjustment of parameters.

　　上海脚手架或将小幅上涨趋势厂家出货有一定压力…上海脚手架市场价格涨跌不一。今日早盘期货市场下降，现货市场商家报价以下降为主，其中小部分规然也有零星上涨，然而大部分规格下调后出货依然不佳。现主流价格在3660元/ 吨。今日上海脚手架市场整体成交情况一般，大…