The whole process of the relief of the welding residual stress through an explosive treatment is simulated by using the nonlinear dynamic finite element method.

The successful application of explosion treatment on relieving welding residual stress in S belt of hot-blast stove in WIS(G)CO is introduced.

Not only significant reduc- tion of the surface welding tensile residual stresses but also even distribution of stresses through the thickness are achieved due to the explosion treatment.

The results indicated that after the explosion treatment, the fatigue property of the plastic, clastic and elasto-plastic zones on the 16MnR steel weld, attected by the explosion shock wave, arc all improved but t.

Effect of steam explosion treatment on the structure and properties of hemp fibers;

The results showed that the per-centage of cellulose content of treated hemp fiber increased significantly while that of other non-cellulose reduced,especially lignin,which implied it was of nice degumming effect for hemp fiber by using the explosion treatment.