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src=\"https:\u002F\u002Fimg.shenzhenjianzhong.com\u002Fpublished\u002Fmedia\u002Fagent-articles\u002F565\u002F20261023\u002F179274448856837039\u002Farticle-565-e53b5f6e77a1fd8e.webp\" alt=\"膨胀密封材料未受热与受热填缝状态对比示意\" loading=\"lazy\" \u002F>\u003C\u002Fp>\u003Cp>图1：膨胀材料受热后帮助填充接缝；图中结构和尺寸仅作机制示意。\u003C\u002Fp>\u003Ch2>常温防烟靠的是关闭后的接触配合\u003C\u002Fh2>\u003Cp>常温防烟密封采用柔性翼片、刷状部位或其他适配结构，在门关闭后与对应表面接触。它不需要等待膨胀芯材受热，便能在其设计条件下限制烟气通过接缝。\u003C\u002Fp>\u003Cp>组合密封条把这两种功能放在一起：一部分负责日常关闭状态下的柔性密封，另一部分负责受热后的膨胀填缝。看起来是一条产品，内部却有不同的工作部位。也有单独的膨胀条与独立防烟密封配合使用的方案，具体布置应以整门设计和适用证明资料为准。\u003C\u002Fp>\u003Cp>这种区别也解释了一个维护问题：柔性部位被油漆粘硬、局部缺失或失去接触后，即使膨胀芯材仍在，原有的常温密封作用也可能受影响。Lorient现行技术说明明确提醒，不应给其防烟密封或防火防烟组合密封涂漆，尤其不能覆盖柔性翼片或刷状部位。其他产品同样应查阅本型号的维护要求，不能把个别防火专用条的涂饰许可照搬过来。\u003C\u002Fp>\u003Cp>\u003Cimg src=\"https:\u002F\u002Fimg.shenzhenjianzhong.com\u002Fpublished\u002Fmedia\u002Fagent-articles\u002F565\u002F20261023\u002F179274451229298376\u002Farticle-565-281400d2d4d814d3.webp\" alt=\"组合密封条的膨胀芯材与柔性密封部位分工示意\" loading=\"lazy\" \u002F>\u003C\u002Fp>\u003Cp>图2：组合密封的柔性部位与膨胀芯材分别承担接触密封和受热填缝作用，示意不代表具体安装尺寸。\u003C\u002Fp>\u003Ch2>更换时要核对整门，而不只是量密封条宽度\u003C\u002Fh2>\u003Cp>需要更换时，应先确认原门的产品资料、密封条型号、设置位置及对应功能，再由负责人员按照制造商要求处理。外形相近、宽度相同，不能证明芯材、柔性部位和适用条件相同。\u003C\u002Fp>\u003Cp>门上边、侧边、双扇门中缝和门底也不是可以相互替代的位置。上边和侧边有密封，不代表门底接缝已经得到相同处理。具体需要什么结构，仍取决于整门方案，不能任意加厚材料、贴普通防风条，或削改门扇来消除关闭阻力。\u003C\u002Fp>\u003Cp>日常发现脱落、缺段、被涂漆覆盖或关门不到位时，可记录位置并报修；不应自行用火加热、释放烟雾或拆除密封来验证性能。门扇能否按设计关闭、各接缝如何处理，以及相应试验资料，需作为一个整体核对。\u003C\u002Fp>\u003Cp>判断重点不是“有没有一条胶条”，而是这条材料在什么条件下工作、承担哪项功能，以及它是否属于这樘门经确认的配置。部件的膨胀能力与整门的耐火、防烟表现，应分别确认。\u003C\u002Fp>\u003Ch2>资料来源\u003C\u002Fh2>\u003Cp>1. Lorient：《Steel Door Sealing Solutions》，膨胀密封及周边密封章节；官方技术手册，查阅日期2026年10月23日。\u003C\u002Fp>\u003Cp>2. Lorient：《Fire, Smoke + Acoustic Door Seals》，官方产品分类说明；查阅日期2026年10月23日。\u003C\u002Fp>\u003Cp>3. Lorient：《Can you overpaint fire seals?》，页面更新日期2026年9月23日；查阅日期2026年10月23日。本文仅引用其产品机制与维护说明，不将国外产品适用资料作为国内项目的通用验收结论。\u003C\u002Fp>",[],"建中说门道","Lorient《Steel Door Sealing Solutions》及门用密封技术资料，查阅日期2026-10-23","防火门膨胀密封条与常温防烟密封有什么区别？","防火门,膨胀密封条,防烟密封,组合密封条,门缝","解释防火门膨胀密封材料与常温防烟密封的作用条件、组合结构及更换维护边界，区分部件功能和整门性能。",{"id":36,"name":46,"slug":348},{"title":361,"slug":362},"金陵石化采购防火门与电动伸缩门，资格响应截止10月25日","jinling-fire-door-retractable-gate-procurement",{"title":364,"slug":365},"宜春学院二附院拟更换病理科自动玻璃门，采购涵盖整门调试","yichun-hospital-pathology-automatic-glass-door-replacement",[367],{"id":207,"title":37,"subtitle":368,"image":369,"mobileImage":16,"link":16},"行业动态 · 技术问答 · 产品FAQ","https:\u002F\u002Fwww.shenzhenjianzhong.com\u002Fsecurity-assets\u002F5085ba7fa31941f0ae59e7a8db089907e86b3d1e921787ea3e7e8ff1a14d84e7.jpg"]