Thermal ShockRefractories

Thermal Shock Resistance Tester for Refractory Products

The instrument tests thermal shock resistance of refractory products and other non-metallic materials by compressed-air flow or water quenching. It is manufactured with reference to YB/T 376.1 and YB/T 2206.1-1998 and includes a three-point-bending arrangement.

Model
RZL-14
Category
Thermal Shock

Product Description

The specimen holder rotates horizontally for loading and observing damage on the specimen end face. The tester supports selectable compressed-air-flow and water-quenching methods for refractory products, ceramics, glass, other nonmetallic materials, graphite, and silicate products.

The configuration includes furnace temperature, uniformity, control, temperature recovery after cold loading, nozzle and furnace dimensions, specimen capacity, three-point-bending stress, water temperature, electrical supply, and optional automatic thermal-shock-cycle recording.

Technical Specifications

ParameterSpecification
Referenced standardsYB/T 376.1; YB/T 2206.1-1998
Maximum furnace temperature1,400 °C
Isothermal-zone temperature difference±2 °C between any two points; size according to specimen
Temperature-control accuracy±2 °C
Temperature recovery time after cold loading5 minutes
Compressed-air pressure0.1 MPa
Gas-nozzle sizeØ8 × 5 mm
Furnace dimensions300 × 300 × 400 mm; adjustable according to specimen
Specimen capacity3 standard bricks
Maximum three-point-bending stress0.3 MPa
Water-quenching temperature20 °C ±0.5 °C
Upper knife-edge radiusR5
Lower knife-edge spacing100 mm
Power supply3 × 220 V; 50 Hz
Power6 kW
Specimen-holder movementHorizontal rotation
Control and recordingAutomatic program control, digital display, and optional automatic recording of thermal shock cycles

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