1: By using this agent, a great volume of heat will be  generated, and so the liquid steel at the riser head will maintain in the liquid  state for much long. Then the contraction of the castings can be continuously supplemented  during the solidification processing. When the riser head contracts, the upper  end will form into a crust with the shape of Ħ°UĦħ or Ħ°DiskĦħ. The good supplement  property at the riser can reduce the required volume of riser head during  casting, and so save liquid steel. It also guarantees that the castings have the  compact structure with no shrinkage cavity or porosity. Overall it can increase  the pass rate of finished products siginificantly. 
                      2. Good spreadability. It can uniformly spread on the  surface of the liquid steel, and glue the slag and impurities on the surface of  the liquid steel together, it makes the collection  of the slag much easily. 
                      3: Form stable and reasonable heating layer,  liquid-slag layer and insulating layer, which can effectively block the heat radiation,  heat conduction and heat convection on the surface of the liquid steel, and has  good insulation effect. 
                      4: Contain no carbon and can completely avoid carbon  pickup of the castings. 
                      Use method: 
                      I. Put  the sufficient amount of agent in once, and make the cover thickness over 5cm.  |