High and low temperature electronic universal testing machine

High and low temperature electronic universal testing machine

Adopting innovative design concept and manufacturing technology, integrating precision high and low temperature box and tensile testing machine, is an improved model specially designed to simulate the physical performance test of various materials under different environmental conditions. For example, this machine is equipped with high and low temperature test box, which can test the physical properties of materials such as tensile force, pressure, shear force, etc. in different temperature environments. When using the normal temperature test, the high and low temperature boxes can be removed to increase the use space and convenience. It is mainly used to test and analyze the mechanical properties of metal and non-metallic materials such as tension, compression and bending. It has three closed-loop control modes of stress, strain and displacement, and can calculate the maximum force, tensile strength, bending strength, compression strength, elastic modulus, fracture elongation, yield strength and other parameters.

The main machine adopts a gantry single-space structure, and the test space is in the lower space, which is mainly composed of the base and the frame。

Host frame

The upper crossbeam and worktable are fixed with high-strength light bars to form a high rigidity frame structure; The high-precision ball screw without clearance is adopted to improve the transmission efficiency and displacement accuracy; The coaxiality of the testing machine is good (<8%). The upper, middle and lower beams are made of QT600-3 ductile iron with tensile strength of 60k (600MPa) and yield strength of 40k (400Mpa). The corrosion resistance and oxidation resistance of ductile iron are better than that of cast steel. Due to the microstructure of nodular graphite of ductile iron, it is better than cast steel in reducing vibration energy, so it is more conducive to reducing stress.

Control transmission system

The internationally leading full-digital imported AC servo motor with high control accuracy and high response frequency is adopted to ensure high efficiency, low noise and balanced transmission of the transmission system, and the allowable speed error is not more than ± 0.2%. The maximum test speed range is 0.001~1000mm/min. The circular arc tooth synchronous belt transmission has the advantages of high transmission accuracy, transmission efficiency of 98%, more accurate, stable and low noise.

Force measuring sensor

Adopt imported strain gauge load sensor with high stability and precision; The high-precision measurement system with high stability ensures that the resolution of the whole process remains unchanged, and the maximum error of the test force indication is not more than ± 0.5%. Multiple load sensors can be used according to different ways to realize the multi-range test force range measurement; Good temperature compensation, high sensitivity, high rigidity and good long-term stability.

Fixture

Standard special clamps for various materials are easy to operate and reliable to hold. They can be configured with pneumatic and hydraulic wedge clamps and horizontal push hydraulic clamps to greatly improve the working efficiency. The clamping force can be adjusted to meet the user's test requirements for different materials. They can also be customized according to customer needs；

Deformation measurement system

A variety of electronic extensometers can be equipped according to different materials and specifications, and digital large deformation measuring system (measuring system with wide deformation measuring range, high accuracy and fast response) can also be equipped to realize high accuracy measurement of large deformation materials such as rubber and plastic.

Control parameters：

Force control rate range: 0.005~5% FS/s

Force control rate accuracy：

When the rate is less than 0.05% FS/s, it is within ± 1% of the set value,

When the rate is ≥ 0.05% FS/s, it is within ± 0.5% of the set value.

Deformation control rate range：0.005～5%FS/s.

Accuracy of deformation control rate：

When the rate is less than 0.05% FS/s, it is within ± 2% of the set value,

When the rate is ≥ 0.05% FS/s, it is within ± 0.5% of the set value.

Displacement control rate range：0.001～500mm/min.

Displacement control rate accuracy.

When the rate is less than 0.01 mm/min, it is within ± 1% of the set value,

Rate ≥ 0.01mm/min, within ± 0.2% of the set value.

Host parameters：