Rotomolding Case Sharing - Hydrogen Storage Tanks
In recent years, with the strong support of China for the environmental protection and new energy field, the hydrogen energy development industry has entered a new stage of development! As a key link in the hydrogen energy industry chain, hydrogen storage tanks, relying on their good design adaptability and mobility, have successfully met the core requirements of daily transportation and assembly. At present, the development of domestic hydrogen storage tanks is still in the initial exploration stage, and there are still many technical problems to be solved. Relevant industry standards also need to be further formulated and improved, which is undoubtedly an emerging field with great development potential!
General Composition Structure of Hydrogen Storage Tanks:
Rotomolding process is one of the core processes for manufacturing the inner liner (plastic inner liner) of hydrogen storage tanks. For the inner liner, there are usually the following key requirements: excellent hydrogen permeability resistance, good temperature resistance, lightweight characteristics, stable process adaptability, and material modification potential. At present, we mainly use XLPE (Cross-Linked Polyethylene), PA (Polyamide) and other modified materials to manufacture the inner liner, and such materials have high requirements for the precision of production equipment and molds.
As early as 2018, a number of domestic new energy enterprises and relevant universities have carried out multi-dimensional cooperation with Rising Sun Rotomolding around the R&D of hydrogen storage tank inner liners. Rising Sun Rotomolding mainly provides customers with the required customized molds and production equipment, and relies on the rich experience and professional technology accumulated in the rotomolding field to provide all-round support for customers' R&D work!
By in-depth analyzing key links such as product molding principle, mold splitting method, demolding difficulty, product shrinkage rate, rotating arm placement scheme and equipment selection points, we have helped customers successfully mold the target products, and currently the products have entered the multi-dimensional performance testing stage. In addition, we have also received commissions from European countries for the development of hydrogen tank inner liner molds and equipment, further expanding the international cooperation landscape!
Advantages of Rotomolded Hydrogen Tank Inner Liners:
01、 Integral Molding, No Welding Process: The integral molding requires no additional welding, reducing the leakage risk of welded parts from the source and adapting to the high sealing requirements of hydrogen storage.
02、 Low Mold Development Cost, Suitable for Early R&D: The investment in mold development is relatively low, which effectively reduces the early R&D trial-and-error cost and helps to quickly promote technical verification and product iteration.
03、 Uniform and Controllable Wall Thickness: The uniform distribution of wall thickness can be achieved by accurately adjusting process parameters, avoiding the problem of local structural weakness and ensuring the service stability of the inner liner.
04、 Strong Flexibility in Process Design: It is compatible with the design needs of inner liners of different sizes and shapes, and can efficiently realize production whether it is a conventional structure or a special customization.
05、 Multi-Material Adaptability, Facilitating Performance Testing: It supports the use of different materials for production, and can conduct targeted tests on temperature resistance, permeability resistance, deformation resistance and other properties, helping to screen the optimal materials.
06、 Support for Insert Installation: Metal or other material inserts can be directly embedded during the production process without secondary processing, meeting the needs of external connection and function upgrading.
07、……