What are the needs of the ship for non-destructive testing

Today's welding technology is one of the key process technologies in the modern shipbuilding industry. The welding time of the hull structure accounts for more than 30% of the hull construction time, so the welding quality is qualified, which directly affects the navigation safety and service life of the ship. Welding inspections generally fall into two categories: destructive inspections and non-destructive inspections. Non-destructive testing technology is the most important and most commonly used detection technology in non-destructive testing. It is also the most important testing technique in ship welding quality inspection. Since the welding quality of the ship is an extremely important factor in determining the quality of the ship, the non-destructive testing of the weld is an important part of the ship inspection, whether in shipbuilding inspection or ship acceptance assessment.

 

Non-destructive testing of ships mainly includes visual inspection method, leakage detection method, radiation detection method, ultrasonic detection method, magnetic powder detection method, penetration detection method, eddy current detection method, acoustic emission method, x-ray detection method and the like. Therefore, there are many methods for non-destructive testing of ships, and the main items of detection are more complicated. Therefore, setting up a testing plan in advance can help us many unnecessary steps and costs. Today we will analyze some of the precautions for non-destructive testing of ships.

1, testing company qualifications and equipment issues

2,Detector qualification

3,Detection scheme design problem

4,Detection method and standard selection problem

5,Problem with the inspection process

Non-destructive testing technology has a wide range of applications in the design, production, use and repair of ships. Special non-destructive testing technology is an important guarantee for the quality of shipbuilding. It reflects the establishment of a complete non-destructive testing program during the shipbuilding process. It is very necessary. With the continuous development of China's shipbuilding industry, the application of non-destructive testing technology in shipbuilding will become more and more extensive. The effective non-destructive testing steps, cycle and cost of ships can help ship ships to achieve better economic benefits.

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