河北地区镀锌方管出厂报价上调60-100元不等镀锌方管价格继续追涨。周末唐山突发的限产通知又让钢市炸开了锅，与以往不同的是此次限产力度较大且要求24日环保组进驻钢铁企业督促企业6月27日之前停限产到位，目前方管厂家基本接到相关通知。受其消息带动加之…

方管广泛用于建筑，机械制造，钢铁建设等项目，在造船，太阳能发电支架，钢结构工程，电力工程，电厂，农业和化学机械，玻璃幕墙，汽车底盘，机场,锅炉建造，高速路栏杆，房屋建筑，压力容器，石油储罐，桥梁，电站设备，起重运输机械及其他较高载荷的焊接结构件也有大量使用。

Square pipes are widely used in construction, machinery manufacturing, steel construction and other projects, such as shipbuilding, solar power generation bracket, steel structure engineering, power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, high-speed rail, building, pressure vessel, oil storage tank, bridge, power plant equipment, lifting and transportation machinery and other high-load projects. Welded structural parts are also widely used.

　　方管和矩形管冷弯成型时不同的特点冷弯方管、冷弯矩形管是通过外辊与管坯外壁的单向接触形成弯矩使带料弯折,冷弯会使弯折线产生压缩,压缩效应使弯折线纵向伸长,弯折处金属出现堆积变厚,这就是冷弯的压缩/增厚效应。Cold-formed square pipe and cold-f…