The main raw materials for the production of cold rammed paste are: calcined anthracite, metallurgical coke, graphite powder, coal tar and coal tar as binders. The furnace can be directly rammed and built at room temperature without heating. It is used to fill the gap between carbon blocks. After ramming, an integral carbon lining is formed without gap, which can effectively reduce furnace penetration accidents
Cold ramming paste is mainly used in aluminum reduction cell, iron making blast furnace, coreless induction furnace and submerged arc furnace
The cold ramming paste can be divided into joint paste and fine joint paste according to the particle group and filling size. The fine joint paste is used to fill the carbon joint less than 2mm, the aggregate is mainly metallurgical coke powder less than 100 mesh, and the coarse joint paste is used to fill the large gap and tamp into a carbon pad
The main characteristics of Cold ramming paste are: small coefficient of thermal expansion and compact structure after masonry. The smaller porosity can make the electrode oxidize slowly in the heating state. The softening point is low and can be well combined with the carbon block. Small resistance coefficient can reduce power loss.
