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Eddy-current testing of conductive metal pipes, parts, welded joints and near-surface defects for in-process and in-service pressure equipment based on NB/T47013.6 and NB/T47013.13 and other eddy-current standards.

1, placed coil parts eddy current test standard test block

The depth of the three slots of ABC is 0.2, 0.5 and 1.0, with an error of 0.05. It is made of 2024 aluminum alloy in T3 state or alloy material with similar conductive properties.

2, placed coil weld eddy current test block

The calibration test block shall be made of the same or similar material as the workpiece to be checked, the slot width is less than 0.2mm, the slot depth is 0.5mm, 1.0mm, 2.0mm, and the error is 0.1mm. A non-conductor elastic gasket of known thickness can be used to simulate the coating, or the actual coating can be sprayed on the calibration test block, and the push gasket thickness is an integral multiple of 0.5 mm. 山東瑞祥模具有限公司|試塊

3, ferromagnetic pipe line eddy current test block

The eddy current testing of ferromagnetic pipes is applicable to the eddy current testing of ferromagnetic seamless pipes, nickel and nickel alloy pipes and welded steel pipes with an outer diameter of not less than 4mm. 山東瑞祥模具有限公司|試塊

4, non-ferromagnetic metal pipe eddy current test block

Non-ferromagnetic metal pipe eddy current testing, suitable for through coil testing system, for copper and copper alloy seamless pipe, can detect the outer diameter of φ3mm~φ160mm, wall thickness of 0.2mm~6mm; For aluminum and aluminum seamless pipes, the pipe can be detected, the outer diameter is less than or equal to φ38mm wall thickness is less than or equal to 2mm; For titanium and titanium alloy seamless pipes, the outer diameter of the pipes that can be detected is φ4mm~φ65mm, and the wall thickness is 0.5mm~4.5mm. For the aperture of the test sample, refer to the requirements in NB47013.6-2015. 山東瑞祥模具有限公司|試塊

5, in the use of ferromagnetic heat exchange tube far-field eddy current test block and far-normal eddy current thickness test block

The far field eddy current test of the ferromagnetic heat exchange tube is suitable for the far field eddy current test and the far field eddy current thickness measurement of the ferromagnetic steel pipe with the outer diameter of 12.5mm~60mm and the wall thickness of 0.7~4mm, and the detection sensitivity of the instrument. 山東瑞祥模具有限公司|試塊

山東瑞祥模具有限公司|試塊

6, placed coil weld eddy current test block

Eddy current testing of non-ferromagnetic heat exchange tubes in use is suitable for eddy current testing and eddy current thickness measurement of non-ferromagnetic tubes with outer diameter of 10~200mm and wall thickness of 0.75~8.0mm.

山東瑞祥模具有限公司|試塊

7. Pulse eddy current test block

Pulsed eddy current testing is used to detect the thickness reduction of base metal wall of pressure equipment body with covering layer. Pipe specimen and plate specimen 1 are used to check the instrument sensitivity, and plate specimen 2 is used to test the performance parameters of the system within its range. 山東瑞祥模具有限公司|試塊

山東瑞祥模具有限公司|試塊

8. Aviation eddy current test block

山東瑞祥模具有限公司|試塊

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Test block for eddy current testing

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