Abstract:In order to satisfy the requirement of the heavy satellite launchꎬ it is necessary to develop high load
bearing steel band. Using Φ 937 clamp band device as an exampleꎬ we utilige ultra high strength steel of 18Ni marag ̄
ing steel to carry out band design and manufacturing.With process of heat treatmentꎬ the yield strength of the band
reaches 1 723 MPaꎬ making the bag belt device carrying capacity doubled.With process of surface polishingꎬ the sur ̄
face roughness can reach 0.4ꎬ18Ni maraging steel band is examined by the static test and separation test.