液袋产品简介
Liquid bag product introduction
产品概述 | Product Overview
液袋是液压胀管机的核心压力传递组件，采用多层复合弹性材料（如芳纶纤维增强橡胶、聚氨酯-尼龙复合层）制成，能够在
超高压（≤600 MPa）下均匀膨胀，实现管材的全周向塑性变形。其柔性设计尤其适用于复杂管型（如U型管、螺旋管）
和薄壁管（≥0.3mm）的高精度胀接。
Liquid bag is the core pressure transfer component of Hydraulic Tube Expander System, which is made of multi-layer
composite elastic materials (e.g. aramid fiber reinforced rubber, polyurethane-nylon composite layer), and is capable
of expanding uniformly under ultra-high pressure (≤600 MPa) to achieve full circumferential plastic deformation of tubes.
The flexible design is especially suitable for high-precision expansion of complex pipe types (e.g. U-shaped pipes, spiral pipes)
and thin-walled pipes (≥0.3 mm).
核心功能 | Core functions
1.均匀压力分布：通过液袋的柔性形变，消除传统机械胀接的应力集中，过盈量偏差≤±2%。
2.无损伤胀接：避免管材内壁划痕，适配抛光管（Ra≤0.1μm）与涂层管（PTFE/陶瓷涂层）。
3.快速更换：模块化设计支持5分钟内完成液袋更换，适配多管径场景。
1. Uniform pressure distribution: Eliminate the stress concentration of traditional mechanical expansion joints through
the flexible deformation of Liquid bag, with the interference deviation ≤±2%.
2. Non-destructive expansion: avoiding scratches on the inner wall of the tube, suitable for polished tubes (Ra≤0.1μm) and
coated tubes (PTFE/ceramic coating).
3. Quick replacement: modular design supports the replacement of Liquid bag within 5 minutes, suitable for multi-tube diameter scenarios.
定制化服务 | Customization service
液袋支持按需全方位性能定制
管径范围：φ1mm – φ300mm
长度定制：50mm – 2,000mm（分段式液袋支持超长管胀接）
快速交付：标准规格24小时发货，非标件7-10天
Liquid bag supports on-demand full range of performance customization
Pipe diameter range: φ1mm - φ300mm
Length customization: 50mm - 2,000mm (Segmented Liquid bag supports extra-long tube expansion)
Fast delivery: 24 hours for standard specifications, 7-10 days for non-standard parts.