摘要
应用B-H（J-H）测定仪分别对拉伸、压缩变形后的310S不锈钢和310S不锈钢焊接件导磁性能进行测试,结果表明,3%~15%变形率的310S磁导率μ=1.0,没有形成典型的磁滞回线;线性回归后,剩磁Br=0.0055~0.117GS,属弱磁性材料,但比空气导磁性要强.承受90~120t压力压缩变形后的310S不锈钢板,其导磁性能与拉伸变形后的310S相似,属弱磁性材料.310S不锈钢焊接件磁导率μ=1.0~1.2,有典型的磁滞回线,最大磁导率平均值为1.044,圆柱永磁体能被吸引而发生滚动,导磁性能明显增强.应用XYZ三维磁场扫描仪对不锈钢有缝管内腔磁感应强度进行测试,结果表明,310S不锈钢有缝管（φ273×4×200）对磁感应强度分布的影响属千分之一级的.
The magnetic conduction properties of 310S stainless steel and stainless weldings after tensile or compresion deformation were studied with the B-H （J-H） detector. The result showed that the magneto conductivity（μ） of 310S stainless steel with 3%-15% cold deformation was 1.0, which could not form the magnetic-flux rope. The residual magnetic intensity B, of them was （0. 055-0. 117）GS, in the range of weak magnetic material, but was stronger than that of air. The magneto conductivity（μ） of 310S stainless steel welding samples was 1.0-1.2, with a mean of 1. 044, which could form the typical magnetic-flux rope. The cylinder permanent magnet could be attracted and roiled by with the magnetic conduction properties increased sharply. The magnetic flux density of 310S stainless steel pipes with welding joints were measured by the XYZ 3-dimension magnetic field detector. The result shows that the influence of 310S stainless steel pipes（φ273 × 4 × 200） on the working magnetic intensity is in the category of 1/1 000 order.
出处
《中国计量学院学报》
2015年第3期291-294,315,共5页
Journal of China Jiliang University
