Optimized Processes for Flame Guncreting and Effective Guncrete Mortars for Hot Repairs to Non-Ferrous Metallurgy Equipment

Abstract

We have studied flame guncreting and the guncrete mortars used in ferrous metallurgy, as well as the use of flame guncreting to make repairs to linings without shutting down equipment, thereby improving the lining resistance of equipment used in non-ferrous metallurgy. A special guncreting mortar targeted to the specific operating conditions for these equipment linings was developed. It was found that a low-melting-point component or thermite mixture used for self-propagating high-temperature synthesis (SHS) can be added to the guncrete mortar to reduce the temperature. A guncrete machine was designed to handle this guncrete mortar. Testing of the new guncrete machines and guncrete mortars at non-ferrous metallurgy facilities showed a factor of 1.8 – 2.5 increase in the wear resistance of the linings.