Tensile strength tester

Tensile strength tester

Tensile strength testerIt is a precision equipment used to measure the performance of materials or components under tensile force, widely used in material research and development, quality control, and product testing.

core components

1. Loading FrameworkIt is usually composed of high-strength metals, providing stable structural support, and can be designed as a single column or double column to accommodate different specimen sizes.

2. power systemElectric motors or hydraulic devices are responsible for driving the movement of the crossbeam and accurately controlling the loading speed (such as 0.001-500mm/min).

3. Force sensorHigh precision strain gauges or piezoelectric sensors (with an accuracy of up to ± 0.5%) can monitor the applied force value in real time, with a range ranging from a few newtons to several meganewtons.

4. Fixture systemConfigure pneumatic flat mouth fixtures, V-shaped clamps, or high-temperature environment specific fixtures according to the material type to ensure that the sample does not slip.

5. Deformation measurementContact extensometer (resolution 0.1 μ m) or non-contact video extensometer tracks the true strain of the specimen gauge section.

6. control systemClosed loop servo control ensures the implementation of complex testing modes such as constant stress and constant strain, equipped with emergency stop buttons and overload protection mechanisms.

7. data acquisition systemA 16 bit or higher AD conversion module captures data at a kHz sampling rate and, in conjunction with professional software such as Bluehill, displays stress-strain curves in real-time and calculates parameters such as elastic modulus and yield strength.

working principle

The equipment synchronously collects force displacement data through axial tensile specimens, and generates engineering stress-strain curves and true stress-strain curves through software processing. Standard testing (such as ASTM E8 metal stretching) or custom multi-stage cyclic loading can be performed, and some models are equipped with environmental chambers to achieve temperature control testing from -70 ℃ to+300 ℃.

Key technical parameters

• Maximum load: 50N to 2000kN (desktop to floor standing)

• Accuracy level: 0.5 level (ISO 7500-1 standard)

• Speed control: 0.001% to 100% continuously variable speed throughout the entire process

• Test space: Standard stroke 1000mm, customizable 2000mm ultra long stroke

• Data interface: Ethernet USB3.0， Support LIMS system integration

Application scenarios

• metal materialDetermination of tensile strength and elongation at break (e.g. automotive steel plates must meet TS16949 standards)

• polymer materialsEvaluate the brittle ductile transition temperature of plastics (as tested in GB/T 1040)

• textileTesting the bursting strength of fabrics (ASTM D3787)

• electronic componentVerify the insertion and extraction force of the connector (such as conducting 5000 insertion and extraction tests on the USB interface)

• medical deviceVerification of tensile strength of stapler (compliant with YY/T 0245)

Key selection points

• Rubber materials require the use of a large deformation extensometer (elongation>500%)

• The testing of biomaterials requires a compact design compatible with biosafety cabinets

• Composite testing requires configuration of ± 2kN bidirectional loading capacity