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What is the welding inspection method for shipping containers?

9/30/2022

 
Visual inspection and non-destructive testing are commonly used to inspect container welds. Magnetic particle inspection is one of the types of non-destructive testing. Magnetic particle inspection is a method of observing defects using magnetic powders as a display medium. After the ferromagnetic material workpiece is magnetized, as the existence of discontinuity, the magnetic field lines on the surface and near the surface of the workpiece are locally distorted to generate a leakage magnetic field, which adsorbs the magnetic powder applied on the surface of the workpiece and forms a visible magnetic field under suitable illumination,and the location, size, shape, and severity of the discontinuities are shown.

TLS normally uses black magnetic paste for flaw detection. This method has high sensitivity to detect small defects on the surface of the workpiece. The steps are:
  1. Pour and spray the magnetic levitation over the workpiece to be examined, and the flow rate of the levitation should be slow to prevent the magnetic imprints from being washed away.
  2. Use a fixed device. It is easy to operate and has high efficiency.
  3. Demagnetization. Reduce residual magnetism in the inspected workpiece so that it can be processed or used normally.
  4. After magnetic particle inspection, residual magnetic levitation on the surface is removed and dried.Our QAs are all certified through strict examinations.
TLS attaches great importance to the quality of products and will only deliver products to customers after confirming that the products meet the quality inspection standards.
​Any requirements about specialized shipping containers, please feel free to contact us.
WELDING INSPECTION METHOD FOR SHIPPING CONTAINERS


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  • Home
    • About us
    • Quality, Health, Safety and Environment
    • Manufacturing standards
    • Container certificates
  • Containerised solutions
    • Intelligent pressurised container | MUD logging cabin
    • Battery energy storage system (BESS) container
    • Laboratory container | workshop container | Equipment containers
    • Temporary refuge shelter | Toxic gas refuge | Safe haven
    • Offshore accommodation cabin | office container
    • Reefer container | Refrigerated container
    • Intelligent waste water treatment container
    • Fresh water generator container
  • Cargo Containers
    • Offshore closed containers
    • Half height container
    • Cargo basket
    • Cutting skip, waste skip
    • Drum basket
    • Offshore Tank
    • Mini container
    • Open top container
  • Product photos & videos
  • News & Blogs
  • Contact us