In order to make the blast furnace iron melt with fluctuating S content suitable to production of large centrifugally cast ductile iron pipes, a sort of desulphurizing agent which has multiple functions, relatively low cost and can be easily used was developed.

Analysis of factors influencing slag defects in ductile iron castings;

Studies on the TIG arc reflow strengthening on the surface of ductile iron;

The model of the ductile iron solidification is set up according to the solidification property and influence factor.

These figures play an important role in eliminating this defect and improving casting quality of ductile cast iron.

Using nodular cast iron as matrix material, in the case of no preheating and thickening transition alloybead welded layer as well as choosing special welding wire the laser bead welding was investigated.

The wedge specimens of nodular cast iron containing 0.

An investigation on cavitation erosion of nodular cast iron is presented in this paper.

Analysi on causes of defects of blackheart existing in single piston ring casting of nodular iron;

Producing Motor Rear Axle Housing with as cast Ferrite Nodular Iron Which is Melted in Cupola Furnace;

The laser surface hardening technology of large-scale diesel locomotive camshaft using cast austenite-bainite nodular-iron instead of 20Cr alloy steel was studied.

Firstly,the paper reviewed the development course and the practical values of austenite-bainite nodular-iron,analyzed the effect of some alloying elements on the mechanical properties of austenite-bainite nodular-iron,discussed the isothermal quenching process of austenite-bainite nodular-iron.