摘要
07MnCrMoVR是一种低合金高强度调质钢,作为国产低焊接裂纹敏感性钢,广泛应用于球罐和大型储罐等压力容器。通常钢制球罐体积较大,因此对其制造、组装和焊接的要求也更高。钢制球罐在使用过程中容易产生裂纹,因此在球罐定期检验时应注重对球罐对接焊缝内表面的检测,以及时发现裂纹,保证球罐的安全运行。
07MnCrMoVR is a kind of low alloy high strength quenched and tempered steel. It is widely used in the manufacture of pressure vessels, such as spherical tank and large tank, as a domestic low welding crack sensitive steel. Generally, the steel spherical tank is larger in volume, so the requirements for its manufacture, assembly and welding are higher. The steel spherical tank is prone to crack during use. Therefore, in the periodic inspection of spherical tanks, attention should be paid to the inner surface inspection of the spherical tanks butt welds, and cracks should be found in order to ensure the safe operation of the spherical tanks.
出处
《化工装备技术》
CAS
2017年第4期34-37,共4页
Chemical Equipment Technology
关键词
球罐
裂纹
低合金钢
焊缝
表面缺陷
无损检测
压力容器
Spherical tank
Crack
Low alloy steel
Weld joint
Surface defect
Nondestructive examination
Pressure vessel
