English Product Name

Overview

The Yuelian TS-80 High-Low Temperature Environmental Test Chamber is an engineered solution for evaluating the thermo-mechanical stability and microstructural integrity of iron-based alloys—including austenitic stainless steels, ferritic-martensitic steels, and precipitation-hardened superalloys—under precisely controlled thermal cycling conditions. Designed in accordance with ISO 16750-4 (road vehicles), ASTM D3418 (thermal transitions of polymers), and IEC 60068-2-1/-2/-14 (environmental testing), this chamber enables accelerated aging, thermal shock simulation, and qualification-level environmental stress screening. Its dual-zone refrigeration architecture—employing a Tecumseh hermetic compressor with R404A/R507 refrigerant blend—ensures stable operation across the full −70 °C to +150 °C range, critical for assessing phase transformation kinetics (e.g., martensite reversion, carbide coarsening) and oxide scale adhesion in high-temperature structural alloys. The chamber’s stainless-steel construction, rock wool and rigid PU insulation, and leak-tight sealing meet GLP-compliant infrastructure requirements for metallurgical laboratories conducting ASTM E23, ISO 148, or EN 10045-1 impact testing under conditioned environments.

Key Features

• Intelligent PID + SSR/SCR bidirectional temperature/humidity control with adaptive slope logic for precise ramp-and-soak profiles.
• 150-program × 1500-segment programmable controller supporting nested loops, partial cycle segmentation (5 independent sub-cycles), and 9999 × 999-cycle endurance testing.
• Double-glazed, anti-fog observation window with embedded heating element and high-luminance fluorescent lighting for real-time sample monitoring during thermal transients.
• Surface-evaporation humidification system with integrated pure-water generator, automatic water recovery, and dry-run protection.
• 15-point real-time safety monitoring including refrigerant pressure anomalies, compressor overload, overtemperature cutoff, power failure detection, and fault-code logging with time-stamped diagnostics.
• SUS#304 stainless-steel chamber interior and exterior; rigid polyurethane + rock wool composite insulation (≥120 mm thickness) ensuring thermal uniformity ≤±0.5 °C and stability ≤±0.3 °C.

Sample Compatibility & Compliance

The TS-80 accommodates standardized tensile specimens (ASTM E8, ISO 6892-1), Charpy V-notch bars (ISO 148-1), and coupon arrays for oxidation studies (ASTM G1, ISO 8565-2). Its internal dimensions (40 × 50 × 40 cm) support mounting fixtures for strain gauges, thermocouples (Type K, T, or N), and in-situ dilatometry probes. All electrical interfaces comply with IEC 61000-4 EMC standards. The control system supports audit-trail generation per FDA 21 CFR Part 11 requirements when paired with validated data acquisition software. Calibration traceability follows ISO/IEC 17025 via third-party accredited providers; routine verification adheres to EURAMET cg-18 guidelines for environmental chambers.

Software & Data Management

The embedded controller provides RS-232/RS-485 serial interface for integration with LabVIEW, MATLAB, or custom SCADA systems. Optional Ethernet connectivity enables remote parameter upload/download, real-time data streaming (temperature, humidity, cycle status), and alarm notification via SMTP or Modbus TCP. All program logs, setpoint histories, and fault records are timestamped and exportable as CSV or PDF. For regulated environments, optional 21 CFR Part 11-compliant software modules provide electronic signatures, role-based access control, and immutable audit trails—fully compatible with LIMS platforms used in aerospace material certification (e.g., AMS 2750E, NADCAP AC7101/1).

Applications

• Thermal cycling validation of turbine blade alloys (e.g., Inconel 718 derivatives) per ASME BPVC Section II Part D Annex 3.
• Oxidation resistance testing of Fe–Cr–Al ODS alloys at 1000 °C under cyclic dew-point-controlled humidity (ASTM G174).
• Low-temperature embrittlement assessment of pipeline steels (API 5L X80) per ISO 15630-1.
• Qualification of additive-manufactured iron-based components (ASTM F3184) under thermal shock per MIL-STD-810H Method 503.7.
• Accelerated corrosion testing of coated fasteners (ASTM B117 modified with thermal pre-conditioning).

FAQ

Does the TS-80 support simultaneous temperature and humidity control for combined environmental stress screening?

Yes—the chamber integrates surface-evaporation humidification with independent PID control for concurrent regulation across 20–98% RH and −70 °C to +150 °C, meeting IEC 60068-2-30 test conditions.

Can the controller store user-defined test protocols compliant with ASTM E1525 or ISO 11357-3?

Absolutely—the 150-program memory retains multi-step thermal ramps, dwell periods, and humidity transitions with programmable slope rates and segment linking logic.

Is the refrigeration system suitable for continuous operation at −70 °C?

Yes—the dual-stage air-cooled system with R507 refrigerant and oil management circuitry ensures uninterrupted operation at −70 °C for ≥1000-hour qualification runs.

What calibration documentation is provided with delivery?

Each unit ships with a factory calibration certificate (traceable to NIM China), temperature/humidity uniformity report, and refrigerant charge verification log.

Are custom modifications available—for example, extended low-humidity capability or additional test ports?

Yes—Yuelian offers OEM engineering services including 5% RH dehumidification upgrades, up to six 50-mm diameter feedthrough ports, and DIN-rail-mounted signal conditioning modules.