The industry knowledge involved in digital electronic universal testing machines is mainly concentrated in the following areas: mechanical properties testing, material science, industry standards, quality control, and product research and development. The following is an overview of some related industry knowledge:
1. Mechanical properties testing
Tensile test: mainly measures the breaking point, yield point, elongation, elastic modulus and other characteristics of the material under tensile force. Widely used in quality inspection of metals, plastics, rubber and other materials.
Compression test: Test the compressive strength, deformation and other characteristics of the material under compression force. Commonly used to test building materials, rubber, etc.
Bending test: Test the bending strength, elasticity and other characteristics of the material under bending force. Commonly used in the research and development and quality control of products such as plastics and composite materials.
Shear test: Mainly used to test the shear strength of the material under shear force, and is often used for the detection of film materials and composite materials.
2. Material science
Material classification: According to mechanical properties, materials are roughly divided into metals, non-metals (such as plastics, ceramics, rubber), composite materials, etc. The mechanical properties of different materials vary greatly, so different test standards and methods are selected.
Elasticity and plasticity: The ability of a material to rebound after being subjected to force (elasticity) and the ability to permanently deform (plasticity) are important parameters for measuring the quality of a material.
Stress and strain: Under the action of force, stress (force/area) is generated inside the material, and as the deformation increases, the material exhibits different strains (degree of deformation). The stress-strain curve can reflect the mechanical properties of the material.
3. Industry standards
Different industries have different requirements for the mechanical properties of materials, so each industry has corresponding testing standards. The following are some common industry standards:
ISO standards: The International Organization for Standardization (ISO) has developed a series of standards for material testing. For example, ISO 527 is for tensile testing of plastics, and ISO 2049 is for compression testing of rubber.
ASTM standards: The American Society for Testing and Materials (ASTM) has issued many standards for mechanical property testing of materials, such as ASTM E8 standard (tensile test method for metals).
GB standards: China's national standards (GB) also cover the testing requirements for various materials, such as GB/T 1040 (plastic tensile property test).
4. Quality control and management
Quality management: Digital electronic universal testing machines are an indispensable tool in modern quality management systems, especially for real-time testing during the production process to ensure that products meet quality standards before leaving the factory.
Statistical quality control: Analyze test data through statistical methods to determine the pass rate, stability and reliability of product batches. Common methods include control charts, sampling inspections, etc.
Production process optimization: Optimize production processes through analysis of mechanical properties test results, reduce material waste, and improve production efficiency and product quality.
5. Product research and development
New material research and development: Digital electronic universal testing machines play an important role in the research and development of new materials. Researchers can understand the characteristics and application scope of new materials through mechanical properties testing, and provide data support for product development.
Functional materials: With the advancement of science and technology, many new functional materials (such as smart materials, composite materials, nanomaterials, etc.) have been developed. Their mechanical properties are often very complex and require the use of advanced testing equipment for comprehensive evaluation.
6. Industry Application
Automotive industry: Electronic universal testing machines are used for performance testing of automotive parts, such as body materials, seat materials, rubber seals, tires, etc. Ensure the safety and comfort of the car.
Aerospace: Aerospace materials such as light alloys and composite materials have extremely high requirements for mechanical properties. Electronic universal testing machines are used for tensile, compression and fatigue testing of these materials to ensure that they meet demanding conditions of use.
Construction and civil engineering: Mechanical performance testing of building materials such as steel bars, concrete, bricks, etc. is an important guarantee for building safety.
Electronics and electrical industry: used to test the tensile, compression and tensile strength of electronic products such as wires and cables, connectors, and plastic casings.
Plastics and rubber industry: Electronic universal testing machines are used for mechanical performance testing of products such as plastic films, rubber seals, and automobile tires.
7. Development trend of automation and intelligence
In recent years, with the development of automation and intelligent technology, digital electronic universal testing machines have gradually developed towards intelligence and automation. Modern testing machines can not only perform automated operations, but also perform remote control, data storage and analysis through network connections. The application of these technologies makes material testing more efficient, accurate and traceable.