Refractory Systems for Extreme Thermal and Mechanical Loads
Metallurgical processes involve temperatures exceeding 1,600 °C, intensive abrasion, mechanical impact, and chemical corrosion caused by slag and molten metal. Key challenges include slag corrosion resistance, thermal shock resistance, hot strength stability, and prevention of metal penetration.
TOGO develops solutions for:
- electric arc and induction furnaces
- ladles and distribution systems
- tapping channels and furnace covers
- wear and impact zones
Based on temperature exposure, slag chemistry, and operating cycles, we define the optimal system (conventional, low-cement, ultra-low-cement, or cement-free). The objective is extended campaign life and reduced unplanned shutdowns.
Resistance to Metal Penetration and Chemical Corrosion
Melting of aluminum, copper, and other non-ferrous metals requires materials with high resistance to metal penetration, alkali attack, and chemical corrosion.
We provide:
- low-cement and cement-free systems
- low-permeability materials
- linings for melting chambers and transfer channels
The focus is long-term stability and reduced contamination of the melt.
Abrasion and Flue Gas Resistant Systems
In power plants, refractory materials are exposed to ash abrasion, flue gas corrosion, thermal cycling, and reducing atmospheres.
TOGO supplies:
- abrasion-resistant castables for boiler walls
- systems for cyclones and flue gas ducts
- linings for combustion chambers
Special attention is given to thermal shock resistance and controlled drying schedules to prevent start-up damage.
Alkali-Resistant and Abrasion-Resistant Kiln Linings
Cement production involves temperatures up to 1,450 °C, alkali attack, clinker abrasion, and mechanical vibrations in rotary kilns.
TOGO provides:
- low-cement and cement-free systems for calciners
- abrasion-resistant castables for transition zones
- materials with enhanced resistance to alkali corrosion
- systems for cyclones and hot gas ducts
Proper material selection directly impacts campaign stability and reduces unplanned downtime.
Long-Term High-Temperature Stability
Glass furnaces operate continuously at temperatures above 1,400 °C, requiring resistance to creep, dimensional stability, and long-term thermal durability.
We supply:
- refractory castables for melting zones
- materials for regenerative chambers
- systems with improved resistance to thermal fluctuations
Material selection is based on operating temperature and production type.
Resistance to Aggressive Gases and Thermal Cycling
Incineration plants combine aggressive gases, chlorides, sulfates, high temperatures, and mechanical wear.
TOGO provides:
- chemically resistant refractory systems
- linings for combustion chambers
- corrosion-resistant solutions for flue gas ducts
The focus is long-term stability under cyclic operation.
Stability in Chemically Aggressive Processes
Petrochemical processes require resistance to thermal cycling, chemical attack, reducing atmospheres, and process vibrations.
Solutions include:
- refractory castables for process units
- systems for thermal equipment
- materials tailored to specific reaction environments
The objective is reliable operation without material degradation under extreme conditions.