新闻动态
新闻动态 当前位置:首页>新闻动态>新闻动态

无缝钢管在冷拔后,均需要进行去应力退火

网址:www.buxiugangw.cn  2019-11-13  作者:admin    阅读:

国外高精度冷拔无缝钢管一般是通过在金属中增加合金的办法来提高材料的性能,无缝钢管在冷拔后,均需要进行去应力退火,消除材料的残余应力,改善材料的组织,提高材料的塑性,从而达到防止无缝钢管断裂失效发生的目的。
The high precision cold drawn seamless steel pipe in foreign countries generally improves the material performance by adding alloy in the metal. After cold drawing, the seamless steel pipe needs stress relief annealing to eliminate the residual stress of the material, improve the structure of the material and improve the plasticity of the material, so as to prevent the fracture and failure of the seamless steel pipe.
目前,我国冷拔无缝钢管的材质均为普通45#或20#钢27SiMn钢,通过冷拔变形使金属强度提高;可是,它是以牺牲金属的塑性、韧性为代价的。高精度冷拔无缝钢管是以它的高尺寸精度和高强度性能而立足于市场的,它必须要保证变形量在一定的范围之内,才能最大限度地发挥材料的性能,减少对材料的不利影响。
At present, the material of cold drawn seamless steel tubes in China is ordinary 45 × or 20 × 27SiMn Steel, which improves the metal strength through cold drawing deformation, but it is at the expense of metal plasticity and toughness. High precision cold drawn seamless steel tube is based on the market because of its high dimensional accuracy and high strength performance. It must ensure the deformation within a certain range to maximize the performance of materials and reduce the adverse impact on materials.

转让电话
13313028229