The product properties such as tensile strength and electric conductivity effected by cooling strength and deformation were studied.

Compounds in 7A52 alloy may not influence the processing property of product by means of three process parameters,such as,controlling the main element Mn in 7A52 alloy,and by aid of special moulding system and reasonably controlling cooling strength.

Because taking some measures,such as selecting hot air valve with reasonable structure,improving cooling system of hot air valve and increasing cooling strength of hot air valve,etc,the service life of hot air valve is increased greatly in the practical process of vapourizing cooling of hot air valve in NO.

After transformation, the circulating water of 2# 750m3 BF is increased to 1230 m3/h, the head of circulating pump is increased to 60m, and the intensity of cooling is improved, the life of cooling stave is extended to 2 years, the system's operating security is improved, and the annual benefit of power economy is 0.

Operation and analysis of turbine forced cooling for 300 MW units in Mawan Power Station;

Effect of forced cooling on life loss of HP rotors of 200 MW steam turbines;

Operation analysis of turbine forced cooling for 700 MW units in Zhuhai Power Station;

So the influence of normalizing treatment (with atomized moisture cooling or strong wind cooling) and tempering treatment on the structure and mechanical properties of the camshaft was investigated.

Influence of mould cooling intensity on the strand shell homogeneity in the initial solidification areas;

To ferrite/pearlite steel,the process consisting of low water cooling intensity,5～10 ℃/s cooling velocity,and high temperature controlled rolling can get better effect than single controlled rolling.

The paper contributes main reasons for damage of cooling staves at row 4, 5, and 6 at Tiantie Metallurgical Group BF 2 to inadequate experience to new equipment, low cooling intensity and the effect by the detrimental elements from the stave material.