What is the basic knowledge of a tensile testing machine?

 

1. Principle of operation: tensile testing machine works on the basis of Newton's third law, which measures the tensile properties of a material by applying a controlled tensile force. During the test, the tensile testing machine applies an external force to stretch the specimen, and records the relationship between the loading force and the displacement of the sample.

 

2. Test specimen: tensile testing machine is suitable for different types of specimens, such as metal, plastic, rubber, textile, paper and so on. The shape and size of the sample are determined according to the characteristics and standards to be tested.

 

3. Strength Parameters: The main strength parameters that can be measured by a tensile testing machine include yield strength, tensile strength, breaking strength, elongation and modulus. These parameters can be used to assess the mechanical properties and behaviour of materials.

 

4. Control mode: tensile testing machine usually has a variety of loading control mode, such as speed control, force control and displacement control. According to the specific test requirements, you can choose the appropriate control mode.

 

5. Extended functions: modern tensile testing machines may have many additional functions and testing options, such as temperature control, humidity control, environmental atmosphere simulation, high-speed stretching, cyclic loading and so on. These features extend the application areas and testing capabilities of the tensile testing machine.

 

6. Standards and specifications: The use of tensile testing machines is usually governed by relevant standards and specifications, such as ASTM, ISO, EN, etc. These standards define the test methods, specimens, and test procedures. These standards specify details of test methods, sample preparation, test conditions and data analysis to ensure comparable and accurate results.

 

7. Data recording and analysis: tensile testing machines usually have data acquisition and recording functions, which can display, record and save test data in real time. Analysing the test results can be done using professional software for data processing and report generation, thus helping users to understand the mechanical properties of materials.

 

8. Safety precautions: tensile testing machines involve high loads, high speeds and possible risk of fracture, and therefore need to be operated in accordance with safe operating procedures and the correct use of personal protective equipment. Staff should be trained and comply with relevant safety standards and regulations.

 

The tensile testing machine is an important piece of testing equipment widely used in the fields of material science, manufacturing, quality control and product development. The above is the basic knowledge of tensile testing machine, which can help users to understand and use this equipment. For specific testing needs and applications, it is recommended to refer to the relevant standards and operation manuals, or consult a professional for further guidance.