1. Furnace lining

Made of modern high-quality lining materials: high-temperature-resistant concrete, lightweight brick and fibrous materials of SIBRAL (Germany) for minimal electricity consumption and high temperature uniformity in the furnace chamber.

2. The heating elements of the furnace

Made of KANTHAL A1 (Sweden) resistance wire and placed on ceramic tubes for uniform heating of the furnace chamber.

3. Temperature control regulator for heating of the furnace

The temperature and the process of thermochemical and thermal treatment are controlled by E5CС-HT programmable device from (“Omron”, Japan).

4. Furnace vessel

4.1. Retort material.

Heat-resistant steel of the grade 1.4845: EN 10095-1999. The retort has a hemispherical bottom.

4.2. Ventilator of the furnace atmosphere

– The electric motor power of the fan: 2 kW, 1,500 rpm.
– The diameter of the fan is 350 mm.
– Material of the fan and the lower plate: heat-resistant steel of the grade 1.4845: EN 10095-1999.
– Cooling of the seal of the fan shaft in the lid – with water.

4.3. Retort lid

• The retort flange is water-cooled. The set includes a circulation pump, a tank (1,000-liter capacity) and a set of hose pipes creating a closed cooling circuit.
• The sealing of the retort lid is silicone rod.
• The retort is fixed mechanically by turning wedges.
• The retort lid is lifted by a pneumatic cylinder.
• Nozzles are installed in the lid to supply nitrogen and ammonia to the furnace retort.