Main functions and purposes of the universal testing machine

push time:2023-06-26 Popularity: source:1

What are the functions of a universal testing machine? In fact, universal testing machines are increasingly widely used in our daily lives. What are their functions and effects? BelowGuangzhou Zhongxin Automation Technology Co., LtdMay I provide you with a specific introduction.

≪ Main functions of the universal testing machine

（1） Ordinary test items: (Ordinary display values and calculated values)

1. Tensile stress, tensile strength, tensile strength, tensile elongation at break, constant elongation at break, constant elongation at constant stress, constant stress value, tear strength, force value at any point, elongation at any point, extraction force, adhesive force and peak value calculation, pressure test, shear peeling force test, bending test, and extraction force puncture force test.

（2） Special testing items:

1. Coefficient of elasticity, i.e. Young's modulus of elasticity

Definition: The ratio of normal stress components in the same phase to normal strain. To determine the coefficient of material rigidity, the higher the value, the stronger and more ductile the material. 2. Proportional limit: The load can maintain a proportional relationship with elongation within a certain range, and its maximum stress is the proportional limit.

3. Elastic limit: The maximum stress that a material can withstand without permanent deformation.

4. Elastic deformation: After removing the load, the deformation of the material completely disappears.

5. Permanent deformation: After removing the load, the material still undergoes residual deformation.

6. Yield point: When the material is stretched, the deformation increases rapidly while the stress remains constant, which is the yield point. The yield point is divided into upper and lower yield points, and generally the yield point above is used as the yield point. Yield: When the load exceeds the proportional limit and is no longer proportional to elongation, the load will suddenly decrease, and then fluctuate up and down over a period of time, causing a significant change in elongation. This phenomenon is called yield.

7. Yield strength: The load at which the permanent elongation reaches a specified value during stretching, divided by the original cross-sectional area of the parallel part, yields the quotient.

8. Spring K value: The ratio of the force component in phase with the deformation to the deformation.

≪ 2. Main technical parameters of universal testing machine

Capacity: 50, 100, 200, 500kg, 1T, 2T (optional)

Selection of capacity: Generally, the maximum force value of specimen failure is about 3-10 times

Unit selection: g, kg, N, KN, LB (international standard system, metric system, and English system available for self switching)

Display device: fully computer-controlled (capable of producing any report data required by customers)

Load decomposition degree: 1/100000 (capacity≤ 1T: 1/250000)

Load accuracy:& Le; 0.5% (at 1T capacity: 0.25%)

Maximum stroke: 1000mm (excluding fixtures)

Test speed: 5-300mm/min (computer adjustable)

External dimensions: (L& times; W& times; H) 985& Times; 510& Times; 1600mm

Power system: ordinary motor+drive