Factory-Manufactured Container House
Factory-manufactured container houses typically employ modular design and standardized production processes, integrating industrial manufacturing logic to achieve efficient and controllable production modes. Here are the specific details:
Modular Design and Standardized Production
Container houses are composed of modular units as their basic components, dividing the entire building into independent elements such as floors, roofs, and sides. Standardized design enables coordinated progress across multiple stages. For example, a smart factory in Guangdong utilizes a 400-meter fully automated production line, allocating welding, assembly, and polishing processes to different workstations, with AGV (Automated Guided Vehicle) systems handling material transportation, ultimately assembling complete container units at the end of the line. This approach achieves a daily module production capacity of 50 units, with manufacturing precision maintained at 1-2 millimeters, significantly surpassing traditional on-site construction efficiency.
Industrial Manufacturing Process
The production process covers steel processing, structural assembly, enclosure system installation, and integration of internal functional modules. Taking a产业园 (industrial park) in Shenzhen as an example, its concrete MiC (Modular Integrated Construction) production line covers the entire process from material input to finished product output through 190 workstations and over 80 specialized pieces of equipment. Each module is equipped with a unique QR code identity tag, allowing production records to be retrieved by scanning, ensuring traceable quality. This model enables over 70% of the processes to be completed in the factory, reducing the overall construction period by more than 60% compared to traditional construction methods.
Core Processes and Quality Control
- Steel Structure Processing: Utilizing hot-dip galvanized cold-formed steel frames, fully automated welding processes ensure weld strength complies with the GB/T 19001-2016 standard. For instance, Suzhou Zhongnan Steel Structure Co., Ltd. achieves a frame deformation rate of only 0.18%, well below the industry's acceptable threshold of 0.3%.
- Enclosure System Integration: Walls, roofs, and floors are prefabricated into rigid units in the factory, filled with rock wool or polyurethane sandwich panels for thermal insulation. A company in Baotou reduces heat transfer efficiency by 40% through a thermal-break lining structure, keeping indoor temperatures 8-10 degrees Celsius higher than the outside in winter.
- Functional Module Pre-installation: Electrical and water pipelines, bathroom fixtures, cabinets, etc., are pre-installed on the assembly line, requiring only on-site hoisting and joint treatment. Zhongnan's packing containers in Suzhou are ready for use upon on-site hoisting, supporting the completion of 10 standard dormitory setups within one day.
Environmental Protection and Recycling Advantages
Container houses consume approximately 1.2 tons of steel per standard unit, with a lifecycle carbon footprint 56.5% lower than that of concrete temporary buildings. For example, a company in Baotou optimizes the load-bearing structure by adding C-shaped steel purlins, enabling stable stacking of container units up to three layers high. Additionally, adopting a zinc-rich primer and polyurethane topcoat protective system extends the steel's service life to over 15 years.
