山东三所新材料技术有限公司

　　充气拱门作为庆典、展会等活动中常见的装饰设施，其建造流程需兼顾结构稳定性、耐用性与视觉效果。从设计规划到成品测试，每个环节都需精准把控，以确保拱门在不同环境下能安全稳定使用。以下从多个维度详解充气拱门的建造全过程，揭示其从材料到成品的转化逻辑。

　　Inflatable arches, as common decorative facilities in celebrations, exhibitions, and other events, require a construction process that takes into account structural stability, durability, and visual effects. From design planning to finished product testing, precise control is required at every stage to ensure the safe and stable use of the arch in different environments. The following provides a detailed explanation of the entire process of constructing an inflatable arch from multiple dimensions, revealing its transformation logic from materials to finished products.

　　设计规划：功能与场景的精准匹配

　　Design planning: precise matching of functions and scenes

　　建造充气拱门的首要步骤是根据使用场景进行设计规划。需明确拱门的用途 —— 是用于商业宣传、节日庆典还是赛事活动，不同场景对尺寸、承重及装饰性要求差异显著。常规拱门高度多在 5-10 米，宽度 6-15 米，若用于户外大风环境（如开阔广场），需增加底部配重设计，整体高度可适当降低以减少风阻。

　　The first step in building an inflatable arch is to design and plan based on the usage scenario. It is necessary to clarify the purpose of the arch - whether it is used for commercial promotion, festival celebrations, or sports events. Different scenarios have significant differences in size, load-bearing capacity, and decorative requirements. Conventional arches typically have a height of 5-10 meters and a width of 6-15 meters. If used in outdoor windy environments (such as open squares), a bottom counterweight design needs to be added, and the overall height can be appropriately reduced to reduce wind resistance.

　　结构设计需兼顾美学与力学平衡。顶部弧形曲率需经过计算，确保充气后线条流畅且受力均匀，避免局部过度拉伸导致破损；两侧立柱与地面的夹角通常设计为 85°-90°，既保证站立稳定性，又能分散垂直方向的压力。若需印刷图案或文字，需在设计阶段确定图文位置，避免因结构褶皱影响展示效果，文字字号需根据拱门尺寸按比例放大，确保 10 米外清晰可见。

　　Structural design needs to balance aesthetics and mechanics. The curvature of the top arc needs to be calculated to ensure smooth lines and even force distribution after inflation, and to avoid damage caused by excessive local stretching; The angle between the columns on both sides and the ground is usually designed to be 85 ° -90 °, which ensures standing stability and can disperse vertical pressure. If patterns or text need to be printed, the position of the graphics and text should be determined during the design phase to avoid affecting the display effect due to structural wrinkles. The font size of the text should be proportionally enlarged according to the size of the arch to ensure that it is clearly visible from 10 meters away.

　　三维建模与图纸绘制是设计落地的关键。通过计算机建模模拟充气后的形态，检测各部位尺寸比例是否协调，重点校验弧形顶部与立柱衔接处的弧度平滑度。最终输出的施工图纸需标注各部件尺寸、接缝位置及配件安装点，为后续裁剪、缝制提供精确依据。

　　3D modeling and drawing are key to the implementation of design. Simulate the inflated shape through computer modeling, check whether the size ratios of each part are coordinated, and focus on verifying the smoothness of the curvature at the junction between the curved top and the column. The final construction drawings should indicate the dimensions of each component, joint positions, and installation points of accessories, providing accurate basis for subsequent cutting and sewing.

　　材料甄选：性能与场景的适配选择

　　Material Selection: Adaptation Selection between Performance and Scene

　　充气拱门的核心材料为 PVC 夹网布，其性能直接决定产品质量。选用的 PVC 夹网布需满足厚度 0.4-0.6mm，经纬向抗拉强度≥300N/5cm，撕裂强度≥50N，这种材料兼具柔韧性与抗风性，适合多数户外场景。针对沿海高湿环境或冬季低温地区，需选择添加抗老化剂的改性 PVC 材料，可提升 30% 以上的耐候性，避免长期使用后出现脆化开裂。

　　The core material of the inflatable arch is PVC mesh fabric, and its performance directly determines the product quality. The selected PVC mesh fabric should meet the requirements of a thickness of 0.4-0.6mm, a longitudinal and transverse tensile strength of ≥ 300N/5cm, and a tear strength of ≥ 50N. This material has both flexibility and wind resistance, and is suitable for most outdoor scenes. For the coastal high humidity environment or winter low temperature area, the modified PVC material with anti-aging agent should be selected, which can improve the weather resistance by more than 30% and avoid embrittlement and cracking after long-term use.

　　材料的气密性是关键指标。优质 PVC 夹网布的漏气率需控制在 24 小时内≤5%，检测时将 1㎡材料密封后充气，24 小时内气压下降不应超过初始值的 5%。对于拱门顶部等易受力部位，可采用双层夹网布叠加，增强抗撕裂能力，而底部与地面接触部分则需额外复合耐磨涂层，厚度增加至 0.8mm，抵御地面摩擦损伤。

　　The airtightness of materials is a key indicator. The air leakage rate of high-quality PVC mesh fabric should be controlled within 24 hours ≤ 5%. During testing, 1 ㎡ of material should be sealed and inflated, and the pressure drop within 24 hours should not exceed 5% of the initial value. For stress prone areas such as the top of arches, double-layer mesh fabric can be stacked to enhance tear resistance, while the bottom in contact with the ground requires an additional composite wear-resistant coating with a thickness increased to 0.8mm to resist ground friction damage.

　　辅料选择同样重要。接缝处需使用耐候性聚氨酯线，线径≥0.5mm，断裂强度≥15N，确保缝纫后不易老化断裂；充气阀门选用铜芯单向阀，阀体密封圈为丁腈橡胶材质，耐温范围 - 30℃至 80℃，保证反复充气后仍能保持良好密封性。

　　The selection of auxiliary materials is equally important. Weather resistant polyurethane thread with a diameter of ≥ 0.5mm and a breaking strength of ≥ 15N should be used at the seams to ensure that it is not easily aged or broken after sewing; The inflation valve adopts a copper core one-way valve, and the valve body sealing ring is made of nitrile rubber material, with a temperature resistance range of -30 ℃ to 80 ℃, ensuring good sealing even after repeated inflation.

　　裁剪缝制：精度与牢固性的双重把控

　　Cutting and sewing: dual control of precision and firmness

　　裁剪环节需严格遵循设计图纸。将 PVC 夹网布平铺固定在裁剪台上，通过激光定位仪标记切割线，确保误差≤1cm。弧形顶部的裁剪需采用弧形切割刀，保证曲线平滑无锯齿，避免充气后出现褶皱；立柱部分为矩形结构，裁剪时需预留 5-10cm 的接缝余量，便于后续缝制调整。

　　The cutting process must strictly follow the design drawings. Lay the PVC mesh cloth flat and fix it on the cutting table, mark the cutting line with a laser positioning device to ensure an error of ≤ 1cm. The cutting of the curved top should use a curved cutting knife to ensure a smooth curve without serrations and avoid wrinkles after inflation; The column part is a rectangular structure, and a 5-10cm seam allowance should be reserved during cutting to facilitate subsequent sewing adjustments.

　　缝制工艺直接影响结构强度。采用双线双针平缝机，针距控制在 3-5mm，行距保持均匀，接缝处需重叠 1.5-2cm，确保气密性的同时增强拉力。顶部弧形与立柱的衔接处为受力关键点，需采用 “Z” 字形走针方式加固，针脚密度比普通部位增加 20%，并在接缝内侧粘贴宽 5cm 的 PVC 胶带，通过热压工艺使胶带与布料融合，进一步防止漏气。

　　The sewing process directly affects the structural strength. Adopting a double line double needle flat sewing machine, the needle spacing is controlled at 3-5mm, the line spacing is kept uniform, and the seams need to overlap by 1.5-2cm to ensure airtightness while enhancing tensile strength. The connection between the top arc and the column is the key point of stress, which needs to be reinforced by a "Z" - shaped needle running method. The needle density is increased by 20% compared to ordinary parts, and a 5cm wide PVC tape is pasted on the inside of the seam. The tape is fused with the fabric through hot pressing technology to further prevent air leakage.

　　特殊部位需采用热合工艺处理。拱门的边角转折处，缝纫难以保证密封性，此时需使用高频热合机，通过 150-180℃高温将两层布料热熔粘合，热合宽度≥1cm，冷却后形成无接缝的密封结构。热合后需检查边缘是否平整，若出现气泡或虚接，需重新热合处理。

　　Special parts require heat sealing treatment. At the corner turning point of the arch, it is difficult to ensure sealing during sewing. In this case, a high-frequency heat sealing machine is needed to heat melt and bond the two layers of fabric at a high temperature of 150-180 ℃, with a heat sealing width of ≥ 1cm. After cooling, a seamless sealing structure is formed. After heat sealing, it is necessary to check whether the edges are flat. If bubbles or virtual joints appear, re heat sealing treatment is required.

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