Author: Jennifer

For electric furnace steelmaking process,  there are  20 kinds of scrap able to be used. Carbon scrap: All kinds of carbon scrap shall not be mixed with alloy scrap, plate thickness above 2mm, wire diameter above 4mm, single weight above 0.25kg including edge scrap, cast steel parts, scrap machine parts,…

Clean steel is a steel with very strict requirements for the content of impurity elements in steel, generally requiring S,P mass fraction of less than 0.01%, and the content of hydrogen, oxygen and low melting point metals also have strict requirements. China’s current production of clean steel mainly uses the…

Longitudinal cracks on the surface of continuous casting billets leave delamination defects on the rolled sheet, which can cause breakout and waste billets.The research points out that the longitudinal cracks originate from the unevenness of the thickness of the primary billet shell on the bending moon surface of mould. The tensile…

Carbon steel ice skates are generally used by beginners at the entry level, the ice knife of different quality mainly depends on the carbon content, such as spring steel. Although the hardness of ice knives used in the same project reaches the same standard, due to different grades of steel,…

Ferroalloy is a must auxiliary materials for modern steelmaking production and   each tonne steel production will consume about 2%~4% ferroalloy. According to different requirements of steel-smelting, there are about hundreds of varieties of ferroalloy and can be as deoxidizer, alloy agent, casting crystal core inoculation agent and reducing agent. Manganese…

Supercritical carbon dioxide power generation system uses carbon dioxide in supercritical state as the work material to convert heat from heat source to mechanical energy, and its heat source can come from solar energy, industrial waste heat, geothermal energy, fossil fuel combustion and many other fields. The supercritical carbon dioxide…

In steelmaking process, common deoxidizers include ferro silicon, silion metal, ferromanganese,  Silicon-barium multi-alloy and sillica slag. Ferro Silicon: Ferro Silicon is a common deoxidizer for steel making. The chemical affinity between silicon and oxygen is very high, and it can effectively convert oxygen into silicon dioxide, and adding a certain…

During CCM process, Electromagnetic stirrer (EMS) is used to eliminish some flaws of the billet and improve quality of steel product. Common Types of EMS At present there are following types according to CCM type, section of billet and erection position of EMS. By power supply, there is divided DC…

The surface of the wire along the rolling direction is straight or jagged unwelded gap, in the cross-section presents folding defects called folding, generally along the rolling direction is continuous or intermittent distribution. Folded sides are often accompanied by decarburisation layer or part of the decarburisation layer, folding seam in…

On the surface of the wire and the body of the adhesion of a head or completely non-adhesive metal layer called scarring. Generally it is tongue-shaped, uneven thickness and size. Some scars are rooted, some not rooted, in the full length of the wire, regular or irregular distribution. Scars will impact on the wire surface…