干式潜水服的拉链是整套装备密封要求最高的单点，必须同时满足气密、耐压、耐盐雾、耐低温。主流方案是 TPU 一体成型气密拉链（#5/#8），配硅橡胶封套，达到 IPX8 与 60kPa 保压。

The drysuit zipper is the single most demanding sealing point on the entire suit. It must be airtight, pressure-resistant, salt-spray resistant, and cold-tolerant. The mainstream solution is a one-piece TPU airtight zipper (#5/#8) with a silicone rubber envelope, achieving IPX8 and 60kPa pressure retention.

干式潜水服对拉链的核心要求

Key requirements for drysuit zippers

• 气密保压：阻止空气与水进出，保压能力不低于 60kPa；
• Airtight: blocks air and water, holding at least 60kPa.
• 耐盐雾腐蚀：长期暴露在海水环境；
• Salt-spray resistance: withstands long-term seawater exposure.
• 低温性能：-30°C 不硬化、不脆裂；
• Cold performance: no hardening or cracking at -30°C.
• 开合寿命：3000+ 次循环仍保持密封；
• Cycle life: stays sealed through 3000+ open/close cycles.
• 柔韧贴合：不影响潜水员活动。
• Flexibility: does not restrict diver movement.

常用材质对比

Common materials compared

密封结构：一体成型 vs 传统胶条

Sealing: one-piece vs traditional tape

• 一体成型：齿链与胶带整体注塑为一个部件，无接缝，气密可靠性高；
• One-piece molding: teeth and tape are molded as a single component with no seams — highly reliable sealing.
• 传统胶条：缝制 + 压胶，接缝多，长期使用易在针眼处渗漏。
• Traditional tape: sewn + taped, more seams, prone to leakage at needle holes over time.

标准与测试

Standards & testing

• IPX8：连续浸水（水深与时长按厂商与客户约定）；
• IPX8: continuous immersion (depth and duration per agreement).
• 密封压力：60kPa 保压测试；
• Sealing pressure: 60kPa pressure-retention test.
• 盐雾测试（参考 ASTM B117）；
• Salt-spray test (per ASTM B117).
• 开合寿命：3000+ 次循环；
• Cycle life: 3000+ cycles.
• 温域测试：-30°C 至 70°C。
• Temperature range test: -30°C to 70°C.