Sodium Expansion Rate Tester for Cathode Carbon Blocks
Published: 7/4/2015
Automated instrument for measuring linear sodium-induced expansion of aluminum cell cathode carbon blocks in accordance with ISO 15379-1:2004 and YS/T 63.5-2006. Integrates displacement and temperature measurement with closed-loop control for reliable, repeatable testing up to 1200°C.
Product Description
The DIL09BPD Sodium Expansion Rate Tester determines the linear expansion of cathode carbon blocks caused by sodium penetration, a critical parameter for aluminum electrolysis applications. It adopts an integrated design that combines sensing, control, and data acquisition to streamline setup and improve repeatability.
The system applies precise temperature profiles and constant-current electrolysis while monitoring displacement and temperature in real time. A smart controller with PID control and a supervisory interface enables on-instrument configuration and online adjustments, supporting efficient test execution and data integrity.
Technical Specifications
| Parameter | Specification |
|---|---|
| Standards | ISO 15379-1:2004; YS/T 63.5-2006 |
| Working Temperature | 980°C |
| Maximum Temperature | 1200°C |
| Power Supply | 220 V ±10%, 50 Hz |
| Furnace Power Consumption (Max) | ≤2.5 kW |
| Temperature Control | PID closed-loop; parameters adjustable via AI518P controller and host PC (online) |
| Temperature Control Accuracy | ±1°C |
| Temperature Recording Error | ≤±0.5% |
| Displacement (Expansion) Range | 0–10 mm |
| Displacement Measurement Error | ±0.1% |
| Displacement Resolution | 1 μm |
| Specimen Size/Quantity | Φ30 × 60 mm; one specimen per test |
| Shielding Gas Flowmeter Range | 250 L/h |
| Shielding Gas Flow Control Accuracy | 2% |
| Electrolysis Constant Current | 39.6 A |
| Hydraulic Pressure During Electrolysis | 5 MPa ±0.1 MPa |
| Thermocouple | Type S, 0–1200°C |
| System Design | Integrated test host, control system, embedded touch-screen HMI, test software, and one measuring thermocouple; supports connection to a desktop computer |
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B6-101, Zhongnan High-Tech Intelligent Manufacturing Industrial Park, No. 10 Shuangma Street, Yuetang District, Xiangtan City, Hunan Province, China
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