中空玻璃的密封性能是其隔热、隔音及耐久性的核心保障，而加工设备的精度与工艺控制直接决定这一关键指标。现代中空玻璃生产线通过精密设计与智能控制，构建起多层次密封保障体系。

　　The sealing performance of insulating glass is the core guarantee for its thermal insulation, sound insulation, and durability, and the precision and process control of processing equipment directly determine this key indicator. Modern insulated glass production lines have established a multi-level sealing guarantee system through precision design and intelligent control.

　　在玻璃基片预处理阶段，设备需完成清洗与干燥两大核心任务。立式清洗机采用多组毛刷与去离子水循环系统，彻底清除玻璃表面尘埃、油污及指纹残留，确保洁净度达到ISO 12级标准。干燥段则通过精准控温的热风循环，将玻璃表面水分蒸发，避免残留水渍影响后续密封工艺。这一环节的设备稳定性至关重要，任何清洗不彻底或干燥不足，都可能导致密封胶与玻璃粘接失效。

　　In the pre-treatment stage of glass substrates, the equipment needs to complete two core tasks: cleaning and drying. The vertical cleaning machine adopts multiple sets of brushes and a deionized water circulation system to thoroughly remove dust, oil stains, and fingerprint residues on the glass surface, ensuring that the cleanliness meets ISO 12 standards. The drying section uses precise temperature controlled hot air circulation to evaporate the moisture on the glass surface, avoiding residual water stains from affecting the subsequent sealing process. The stability of the equipment in this stage is crucial, as any incomplete cleaning or insufficient drying may result in the failure of the sealant and glass adhesion.

　　间隔条组装是密封性能的关键节点。铝间隔条需经数控折弯机精确成型，角度误差需控制在±0.5°以内，以确保与玻璃边缘完全贴合。分子筛灌装设备通过振动盘与计量装置协同工作，实现每米间隔条填充量稳定在35±2g。分子筛的填充密度直接影响中空层气体吸附能力，若填充不足，中空层可能因水汽渗透而结露，导致密封失效。

　　The assembly of spacer strips is a critical node in sealing performance. The aluminum spacer strip needs to be precisely formed by a CNC bending machine, with an angle error controlled within ± 0.5 ° to ensure complete adhesion with the glass edge. The molecular sieve filling equipment works in conjunction with the measuring device through a vibrating plate to achieve a stable filling amount of 35 ± 2g per meter of spacing. The filling density of the molecular sieve directly affects the gas adsorption capacity of the hollow layer. If the filling is insufficient, the hollow layer may condense due to water vapor penetration, resulting in sealing failure.

　　合片与封胶工艺是密封性能的最终保障。全自动合片机采用视觉定位系统，确保两片玻璃与间隔条精准对齐，合片精度达±0.2mm。这一精度可避免因错位引发的边部应力集中，从而降低密封胶开裂风险。封胶设备则通过高压撞胶枪混合双组份聚硫胶或硅酮胶，混合均匀度需达98%以上，封胶厚度控制在8-12mm。胶缝的连续性与均匀性直接决定气密性，任何断胶或厚度不足都会形成泄漏通道。

　　The lamination and sealing process is the ultimate guarantee of sealing performance. The fully automatic laminating machine adopts a visual positioning system to ensure precise alignment between the two pieces of glass and the spacer strip, with a laminating accuracy of ± 0.2mm. This accuracy can avoid edge stress concentration caused by misalignment, thereby reducing the risk of sealant cracking. The sealing equipment uses a high-pressure impact glue gun to mix two-component polysulfide glue or silicone glue, with a mixing uniformity of over 98% and a sealing glue thickness controlled between 8-12mm. The continuity and uniformity of the glue seam directly determine the airtightness, and any broken glue or insufficient thickness will form a leakage channel.

　　检测环节是密封性能的终极验证。中空玻璃需通过-40℃低温露点测试，持续4小时中空层无结露现象。氦气质谱检漏仪则检测漏气率，合格标准为≤5×10⁻⁹Pa·m³/s，确保50年漏气量不超过1g。此外，设备还需模拟极端环境，如高温高湿、紫外线辐射等，验证密封胶的耐候性。

　　The testing process is the ultimate validation of sealing performance. Hollow glass needs to pass a -40 ℃ low-temperature dew point test, with no condensation on the hollow layer for 4 hours. The helium mass spectrometer leak detector detects the leakage rate, and the qualified standard is≤5×10⁻⁹Pa·m³/s， Ensure that the air leakage does not exceed 1g within 50 years. In addition, the equipment needs to simulate extreme environments such as high temperature and humidity, ultraviolet radiation, etc., to verify the weather resistance of the sealant.

　　影响密封性的因素涵盖设备、材料与环境三大维度。设备精度方面，合片机平行度误差超过0.1mm/m将导致玻璃局部应力集中，加速密封胶老化。材料匹配性方面，丁基胶与间隔条的剥离强度需≥8N/cm，低温环境下（-30℃）仍需保持≥5N/cm。环境控制方面，生产车间温湿度需控制在20±2℃、RH≤40%，避免封胶过程中混入水汽。

　　The factors that affect sealing include three dimensions: equipment, materials, and environment. In terms of equipment accuracy, if the parallelism error of the laminating machine exceeds 0.1mm/m, it will cause local stress concentration in the glass and accelerate the aging of the sealant. In terms of material compatibility, the peel strength between butyl rubber and spacer strip needs to be ≥ 8N/cm, and it still needs to maintain ≥ 5N/cm in low temperature environment (-30 ℃). In terms of environmental control, the temperature and humidity in the production workshop need to be controlled at 20 ± 2 ℃ RH≤40%， Avoid mixing water vapor during the sealing process.

　　为进一步提升密封性能，智能合片系统通过激光位移传感器实时监测玻璃平整度，自动补偿合片间隙，使边部接触率提升至99%。柔性封胶技术则采用变截面喷嘴，使胶缝宽度从12mm渐变至8mm，角部堆胶量减少30%，应力集中风险降低50%。全生命周期追溯系统通过RFID芯片记录生产数据，建立密封性能衰减预测模型，提前6个月预警失效风险。

　　To further improve the sealing performance, the intelligent laminating system monitors the glass flatness in real time through laser displacement sensors, automatically compensates for laminating gaps, and increases the edge contact rate to 99%. The flexible sealing technology adopts a variable cross-section nozzle, which gradually changes the width of the adhesive seam from 12mm to 8mm, reduces the amount of adhesive stacking at the corners by 30%, and reduces the risk of stress concentration by 50%. The full lifecycle traceability system records production data through RFID chips, establishes a sealing performance degradation prediction model, and provides a warning of failure risk 6 months in advance.

　　中空玻璃的密封性能保障是设备精度、材料科学与智能控制的深度融合。通过工艺优化与技术创新，现代中空玻璃加工设备已实现漏气率低于≤5×10⁻⁹Pa·m³/s的极致密封性能，为绿色建筑提供可靠的技术支撑。

　　The sealing performance guarantee of insulating glass is the deep integration of equipment accuracy, material science, and intelligent control. Through process optimization and technological innovation, modern insulated glass processing equipment has achieved a leakage rate of less than ≤5×10⁻⁹Pa·m³/sThe ultimate sealing performance of S provides reliable technical support for green buildings.

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