一种储气瓶用水解内胆
By using water-soluble materials and a pre-embedded winding mandrel design, combined with pits on the outer surface of the inner liner and a microcapillary network, the problem of non-destructive demolding of the complex V-shaped bottle cavity was solved, improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU SHENYING CARBON FIBER COMPOSITES CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack an efficient, reliable, and non-destructive demolding method that can achieve perfect molding of the inner cavity of complex V-shaped bottles and complete removal of the core mold while ensuring structural strength and molding accuracy.
The inner liner is made of water-soluble material, and a pre-embedded winding mandrel with a channel is set in the center of the inner liner. Hot water is injected through the mandrel channel to dissolve the inner liner. Combined with the pit design on the outer surface of the inner liner and the Murray law distribution of the microcapillary network, non-destructive demolding is achieved.
It achieves non-destructive demolding, avoids damage to the internal carbon fiber structure, improves production efficiency and product yield, and enhances the bonding strength and dissolution efficiency of the inner liner.
Smart Images
Figure CN224516504U_ABST
Abstract
Claims
1. A hydrolytic liner for a gas cylinder, characterized by, The inner liner (1) is made of water-soluble material. The inner liner (1) has a cavity (1-1) for weight reduction in the center. A winding core rod (2) is embedded in the inner liner (1). One end of the embedded winding core rod (2) extends out of one side of the inner liner (1), and the other end of the embedded winding core rod (2) can contact or be inserted into the cavity (1-1). The embedded winding core rod (2) has a channel connecting the cavity (1-1).
2. The hydrolytic liner for gas cylinders according to claim 1, characterized by The winding mandrel (2) is provided with at least one inlet channel (2-1) and at least one outlet channel (2-2). The inlet channel (2-1) and the outlet channel (2-2) are respectively connected to the cavity (1-1). The inlet channel is connected to the pressure end of the hot water delivery system, and the outlet channel (2-2) is connected to the wastewater collection end.
3. The hydrolytic liner for gas cylinders according to claim 1, characterized by, The outer surface of the inner liner (1) is provided with a number of pits (1-4), which are hemispherical and are used to increase the bonding area of the inner liner (1).
4. The hydrolytic liner for gas cylinders according to claim 1, characterized by, The diameter of the pits (1-4) is 1~3mm, the depth of the pits (1-4) is 0.5~1mm, and the distribution density of the pits (1-4) is 4~8 per cm².
5. The hydrolytic liner for gas cylinders according to claim 1, wherein One end of the inner liner (1) is a sealed head shape, and the cross-section of the other end of the inner liner (1) includes a semi-sealed head section (1-2) and a curved surface section (1-3). The semi-sealed head section (1-2) is a partially sealed head shape. The outer cylindrical surface of the inner liner (1) is smoothly connected to the semi-sealed head section (1-2), and the semi-sealed head section (1-2) is connected to the curved surface section (1-3). The curved surface section (1-3) is used to directly or indirectly connect to the metal valve seat on the gas storage cylinder.
6. The hydrolytic liner for gas cylinders according to claim 5, characterized by The distribution density of pits (1-4) on the curved surface segment (1-3) is greater than the distribution density of pits (1-4) on the semi-sealed head segment (1-2) and greater than the distribution density of pits (1-4) on the outer cylindrical surface of the inner liner (1).
7. The hydrolytic liner for gas cylinders according to claim 1, wherein The water-soluble material is a mixture of water-soluble sand and soluble adhesive; the particle size of the water-soluble sand ranges from 50 mesh to 200 mesh.
8. The hydrolytic liner for gas cylinders according to claim 7, characterized by The weight mixing ratio of the water-soluble sand to the soluble adhesive is from 6.5:3.5 to 7.5:2.
5.
9. The hydrolytic liner for gas cylinders according to claim 1, characterized by, The inner liner (1) is provided with a microcapillary network distributed in accordance with Murray's law. The inlet of the microcapillary network is connected to the cavity (1-1). The end of the microcapillary network extends to the vicinity of the outer surface of the inner liner (1) but is not connected to the outer surface of the inner liner (1).
10. The hydrolytic liner for gas cylinders according to claim 9, characterized by The diameter of the microcapillary network does not exceed 2 mm; the distance between the end of the microcapillary network and the outer surface of the inner liner (1) is 0.1~1 mm.