The foundation of creep theory lies in the movement of crystal defects, where the motion of various forms of crystal defects is associated with thermal activation control. Creep is an inherent property of materials. Through corresponding creep characteristic testing, the material is subjected to axial tension under specified temperature conditions, maintaining a certain axial tensile stress for a defined period. The specific elongation of the material is measured, and the time until creep fracture occurs provides typical creep characteristics.

Xi'an LETRY Company specializes in manufacturing high-temperature creep and stress rupture testing machines, used to determine the creep and stress rupture mechanical properties of metals and their alloy materials under specific temperatures and sustained constant tensile loads. This testing machine employs a master-slave control system via an upper computer to manage each testing machine in a cluster, enabling real-time monitoring of each machine's working status and temperature rise through a front-end monitoring center.

Main Technical Parameters:

1 Testing Machine Section:

1.1 Maximum Test Force: 50kN

1.2 Load Range: 0.5～50kN

1.3 Utilizes a first-class lever for loading.

1.4 Force Error (within load range): Not exceeding ±1%

1.5 Variation (within load range): ≤1%

1.6 Upper and Lower Grip Concentricity: ≤12.5%

1.7 Fully adopts blade and knife-edge bearing structure.

1.8 Minimum Weight Gradation: 10N. Weights are automatically loaded.

1.9 Capable of performing cyclic stress rupture tests with repeated loading and unloading at set time intervals.

1.10 Furnace Type: Split-type, with stainless steel外殼.

1.11 Furnace Temperature Range: 200～1200℃

1.12 Furnace Uniform Heating Zone Length: ≥200mm

1.13 One set of plate tension rods, one set of bar tension rods, one extensometer.

1.14 Maximum Operating Temperature for Stress Rupture Rods: 1100℃

1.15 Maximum Operating Temperature for Creep Rods: 1000℃

2、Temperature Control Section:

2.1 Temperature Control Deviation: Not exceeding ±1℃

2.2 Measurement Accuracy (separate measurement system outside control device): ≤±0.1%

2.3 Furnace Temperature Gradient: ≤2℃

2.4 Uniform Heating Zone Control Length: ≥200mm

2.5 Temperature Control Range: 200～1400℃

2.6 Temperature Drift: ≤0.01℃/h

2.7 Stability: Continuous operation for 1000h

2.8 Overshoot: ≤2℃

2.9 Compatible with various thermocouple types.

2.10 Excellent anti-interference capability.

3、Operating Conditions: The equipment must meet the user's operating conditions.

4、Equipment Operating Time: Not less than 1500 hours of continuous operation.

5、Safety Protection: Complies with industry standards (bidding manufacturers must provide specific details).