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宽松衬里
Edlon - Fluoropolymers
Technologies
Edlon's exclusive Loose Lining Technology has proven to be reliable in extremely aggressive services.
Because it is not bond to the metal structure of the vessel, it is inherently stable in highly permeable service.
随着时间的推移，所有的聚合物（包括含氟聚合物）都会有一定量的化学物质渗透过其横截面厚度，这是由化学物质的浓度梯度所致。对于给定的含氟聚合物衬里厚度，渗透速率将取决于一系列因素，包括：渗透分子的性质、以及温度、压力和持续时间的组合。速率还将取决于衬里的设计和制造质量。
尽管含氟聚合物屏障在保护金属基体免受腐蚀方面非常有效，但随着时间的推移，少量渗透物将穿透保护屏障。这些渗透物将是衬里系统过早失效的根源。
When permeants pass through a lining and a metal substrate, they are channeled safely out so they do not change the system.
氢氟酸化学专用溶液
Hydrofluoric acid (HF) can be especially challenging to handle with most materials of construction. Fluoropolymers have prove to be up to the challenge.
确保衬里寿命延长的关键解决方案多种多样：
- 在高温下使用无机酸/流体时，如果衬里宽松而不粘接，则最好。
- 消除/减少衬里接头的应力（此处指与其他类型法兰相连的焊缝和接头）。清除所有的气焊和衬里的任何机械固定，尤其是在喷嘴、检修孔和阀体法兰附近。这些将作为应力梯级。
- Edlon 推荐使用在给定的操作条件下达到最佳性能的 LowStressTM 和 Pure-FusionTM 宽松衬里
Fusion-machine welded construction provides smooth, indiscernible seams with tensile and elongation properties equal to those of the unseamed film itself.
Edlon's proprietary thermoforming techniques are used to make dished heads and other complex shapes. These processes limit the amount of hand welding, thereby increasing product reliability.
