Remove the inner pores and defects to greatly improve the density of material
Closing function of HIP on the micro porous
As a kind of method to eliminate the internal defects of castings and improve the material properties , HIP densification, can improve the weldability, enhance mechanical properties and greatly reduce the degree of dispersion properties of material. When applied to different materials, because different HIP processes are needed, the control of temperature and pressure as well as the impurities and the chemical reaction becomes very difficult. Hence enough technology experiences are necessary.
Schematic diagram of HIP densification treatment
Real effect of HIP densification treatment
l Many performances of casting may be improved to the level even higher than that of the forging through HIP (especially fatigue resistance);
l Under the isostatic effect, at the same time of eliminating the inner pores of the material, the original shape can be maintained;
l Able to effectively improve the ductility and weldability by HIP treatment.