The two 1080-m3 blast furnaces in the Ironworks successively went into operation at the end of 2005,the frontside main runner being of semi-pouring,semi-ramming mix.

HSLH serial pouring cooling feeding system can regulate mould cooling period and flexiblly choose shakeout range.

Meanwhile,this paper described many technical innovation applied to quantitative pouring unit,disk mould (assembling) machine,kick-off plate flat unit and chain plate unit design.

Thermal and mechanical properties of casting polyurethane resin with heat resistance;

The Study of Epoxy Resin Casting Technique for Dry-Type Transformer;

To achieve the low superheat casting,a kind of cooling nozzle is developed.

Application of New Binding Structure of Core Limb to Cast Dry-Type Transformer;

Analysis of Environmental Protection Characteristics of Epoxy Resin Casting Dry-Type Transformer;

Cast Process of Winding in Epoxy Resin Cast Dry-Type Transformer;

It is further proposed to pour glass glue for the sealing during the process .

The measures of controlling aim carbon content and pre-deoxidation,consolidating refining deoxida- tion and light blow after steel tapping,protective casting,etc.

The Special Steel Plant successfully developed 37Mn steel for Class J55 oil well pipes on its first test,by adopting the measures such as the use of EAR-LF-CC process flow to set down reasonable technical measures,strictly controlling aim carbon content,preliminary elimination of oxygen,adjustment of refining slag and protective casting.

The high quality 37Mn5 tubular billet for oil well pipe has been developed and produced in Laigang by the following short flow process: UHP EAF smelting-LF refining-continuous casting – hot charging – rolling,in which some process measures such as prepared burden,strengthening deoxidation,protective casting and so on have been adopted.