What is an elongation testing machine?
In industrial production, the elongation of a material is one of the important indicators to measure its ductility and toughness. The elongation testing machine is a device specially used to test the elongation of materials during the stretching process. It is widely used in quality control in metal, plastic, rubber, textile and other industries. This article will introduce in detail the definition, working principle, application fields and comparison of popular models in the market of elongation testing machines.
1. Definition of elongation testing machine
An elongation testing machine, also known as a tensile testing machine or tensile testing machine, is a device that measures the elongation of a material before it breaks by applying tensile force. It can accurately record the deformation of the material during the stress process and calculate the elongation (unit: percentage). The formula for calculating elongation is:
Elongation (%) = (length at break - original length) / original length × 100%
The equipment usually consists of a loading system, sensors, data acquisition system and control system, which can realize automated testing and high-precision data output.
2. Working principle of elongation testing machine
The working principle of the elongation testing machine mainly includes the following steps:
1.Hold sample: Fix the material to be tested in the upper and lower clamps of the machine to ensure firm clamping.
2.Apply tension: Applying gradually increasing tensile force to the sample through a motor or hydraulic system.
3.Measure deformation: The sensor records the deformation and stress of the material in real time.
4.data output: The system automatically calculates the elongation and generates a test report.
The following are examples of the main technical parameters of the elongation testing machine:
| parameters | Description |
|---|---|
| maximum load | Usually 1kN-100kN, selected according to material type |
| Test speed | 1-500mm/min, adjustable |
| Accuracy level | Level 0.5 or Level 1 |
| data output | Support Excel, PDF and other formats |
3. Application fields of elongation testing machine
Elongation testing machines are widely used in the following industries:
1.metal material: Test the ductility of metal plates and wires.
2.Plastics and Rubber: Evaluate the tensile properties of plastic films and rubber products.
3.Textiles: Detect the elongation at break of fibers and fabrics.
4.building materials: Such as mechanical property testing of steel bars and waterproof materials.
The following is a comparison of the demand for elongation testing machines in different industries:
| Industry | Test standards | Common equipment models |
|---|---|---|
| metal material | ASTM E8, ISO 6892 | UTM-5000 |
| Plastics and Rubber | ASTM D638, ISO 527 | Instron 3365 |
| Textiles | ASTM D5035 | Zwick Roell ProLine |
4. Recommended popular models in the market
According to recent market research, the following are several elongation testing machine models with excellent performance:
| Model | brand | Features | price range |
|---|---|---|---|
| Instron 5965 | Instron | High precision and multi-function | 100,000-150,000 yuan |
| Zwick Roell Z050 | Zwick Roell | Modular design | 80,000-120,000 yuan |
| MTS Criterion | MTS | Suitable for high strength materials | 150,000-200,000 yuan |
5. Summary
The elongation testing machine is an indispensable equipment in material testing. Its high precision and automation features provide reliable guarantee for product quality control. With the advancement of industrial technology, future elongation inspection machines will be more intelligent and integrate more data analysis functions to provide more comprehensive support for R&D and production.
If you need to purchase an elongation testing machine, it is recommended to choose a suitable model based on actual needs, and pay attention to the accuracy of the equipment, brand after-sales service, and compatibility with testing standards.
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