Rapid analysis of silicon,phosphorus and manganese contents in silicon-manganese alloy;

Dissolving sample with nitric acid and hydrofluoric acid,the silicon content of silicon-manganese alloy was made a measurement with ICP-AES method in the hydrofluoric acid-resistant spray devices.

Experimental research on cold bonding briquette of MnSi alloy powder with adding manganese ore fines;

An experimental research on the cold bonding briquette of MnSi alloy powder materials by using different kinds of adhesives is carried out.

It introduces the ideas of determining the craft restriction parameters firstly,and then calculating the burdening proportion,in order to optimize manganese ore mixture during the process of ferromanganese-silicon production.

The paper introduces the state of sulphur content changing in accordance with raw material's when production furnace ferromanganese-silicon.

It analyses the behavior of remained ferroalloy in smelting process, proves that taking use of remained ferroalloy process notonly can greatly improve technological economic indexes in smelting high carbon ferromanganese and ferromanganese-silicon, but also can raise the productivity of furnace.

It introduces the production control of low phosphorus and low carbon high silicon silicomanganese and the measures and crafts requirement of decreasing phosphorus and carbon.

Silicochrome furnace can be transferred to produce silicomanganese.

Due to the technical reformation and enlarging the smelting intensity, the set of 30MVA silicon-manganese submerged arc furnace and the dry gas cleaning system has increased the output of silicomanganese, thus, the gas maximum temperature has risen from 650℃to 950℃, and the gas volume has increased by 80%.