This article introduced the metallurgical principle of secondary combustion technology, and raised the problems met in production and the countermeasures related, as well as compared the energy saving effects with some other energy saving technology.

Study of the post-combustion flow field at the initial stage in BOF;

Influence Factors and Application of Post-Combustion in Arc Furnace Steelmaking;

According to present development of 100 t FSF of Angang,the rational burden mix is analyzed and the technological measures of energy and material saving for FSF steelmaking are presented,including bunden ratio,foaming slag operation,electrode cooling with spray water,power supply system,oxy-fuel burner and post-combustion and so on.

Experimental investigation on secondary combustion in solid rocket ramjet;

Influence of afterburning chamber length on secondary combustion for solid ducted rocket motor;

Study on secondary combustion chamber air-inlet scheme of unchoked solid rocket ramjet;

Effects of the angles of binary air-inlets on after-burning of ducted rocket motors;

The furnace temperature control and the after-burning control widely-used for continuous annealer in late years are mainly described.

Study of suppression after-burning with some additive on rocket motor exhaust is introduced.

As a result, it is important to know about molten steel temperature effect factor of second combustion in RH refining.