Back to blog
Article

Container House Welding Image

Admin September 15, 2026

Currently, it is not possible to directly provide images of container house welding, but its welding structure, process key points, and typical application scenarios can be described in text to help understand its structural form.

I. Core Welding Structures of Container Houses
Container houses are transformed from standard shipping containers through processes such as cutting, reinforcement, and welding. Their welding structures mainly include:

  1. Frame Welding: Channel steel (e.g., 5×10 channel steel) is used to weld the main crossbeams around the top and bottom, forming a supporting structure similar to a house's ring beam. The thickness of the columns is usually not less than 1mm, and they need to be shaped by professional equipment or purchased as finished products. Together with the channel steel, they form the house's frame, determining its overall load-bearing capacity.

  2. Box Body Connection: The top and bottom frames are cut using CNC plasma and fully automatically welded, with a flatness error controlled within ±2mm to avoid misalignment or water leakage during lifting and assembly. Key welds (such as corner welds) need to meet the grade specified in the "Modular Building Technical Standard" to ensure stability during stacking and lifting.

  3. Corrosion Protection: After welding, the box body needs to be sandblasted to remove rust and sprayed with epoxy zinc-rich primer, or an overall hot-dip galvanizing process can be used to prevent weld corrosion in maritime or humid environments.

    II. Key Points of Welding Process

  4. Material Selection: Steel containers are mainstream due to their high strength and good weldability, but a balance between weight and corrosion resistance needs to be struck. Aluminum alloy containers have poor weldability and are generally not used for house renovations.

  5. Precision Control: High-end manufacturers use automatic welding production lines certified by the International Institute of Welding (IIW) to ensure that the weld penetration and leg height meet standards. The diagonal error of the box body needs to be strictly controlled to avoid spatial deformation.

  6. Functional Expansion Welding: In non-standard customization scenarios (such as embedding large-span glass curtain walls or extending folding balconies), welding is required to achieve structural reinforcement to adapt to complex terrains such as mountains and beaches.

    III. Welding Differences in Typical Application Scenarios

  7. Construction Site Temporary Buildings: Welded boxes (large corrugated residential containers) use full welding, resulting in a sturdy structure and low cost, suitable for worker dormitories and temporary warehouses. Packing boxes (quick-assembly boxes) use modular assembly structures for repeated disassembly and assembly, with a neat appearance, and are mostly used for project office buildings.

  8. Cultural Tourism Homestay Renovations: Precision welding processes are required to transform corrugated steel plates into spaces that combine aesthetics and functionality. At the same time, basalt wool color-steel composite panels (with a thermal conductivity coefficient < 0.040W/(m·K)) are used to achieve Class A fire resistance and thermal insulation and sound insulation.