1. Open tensile method
The open tensile method is one of the commonly used methods for welding strength detection. Its principle is to open an opening on the weld and measure the fracture load of the weld under the tensile test of the testing machine. This method can be used to detect the tensile strength and shear strength of the weld. It can also be used to detect the influence of surface quality such as weld side squeeze and burr on weld strength.
2. Clamp shear method
The clamp shear method is a method for measuring the shear strength of the weld. Its principle is to clamp the weld with pliers and test it under the shear action of the testing machine. This method can well detect the shear load in the weld.
3. Hardness test method
The hardness test method is a test method for detecting the internal strength of the weld. Its principle is to judge the weld strength by detecting the hardness of the weld area. The test methods include Vickers hardness tester, Rockwell hardness tester, etc., and its test results can reflect the strength and toughness of the weld.
4. Ultrasonic detection method
The ultrasonic detection method is a non-destructive detection method for weld detection. Its principle is to measure the quality of the weld by detecting the reflection and propagation speed of ultrasonic waves when propagating inside the weld. This method can detect defects inside the weld, including pores, inclusions, etc.
5. X-ray detection method
X-ray detection method is another non-destructive detection method for weld detection. Its principle is to use X-rays to penetrate the weld and measure the degree of reflection of X-rays in different materials to judge the quality of the weld. This method is suitable for detecting defects and quality problems in welds.
6. Magnetic particle detection method
Magnetic particle detection method is a method for weld surface detection. Its principle is to apply magnetic material on the weld surface and use its adsorption effect in the magnetic field to detect surface defects of the weld. This method is suitable for detecting surface cracks, inclusions and other problems.
