复合环氧树脂电缆桥架，在行业里被称作“非金属桥架的终出彩形态”。它比普通钢制桥架贵不少，但在重腐蚀、大跨距、长寿命要求下，综合成本反而更低。这个“贵有贵的道理”，藏在一套硬核的复合工艺里。

Composite epoxy resin cable tray is known as the "ultimate form of non-metallic cable tray" in the industry. It is much more expensive than ordinary steel cable trays, but under the requirements of heavy corrosion, large span, and long service life, the overall cost is actually lower. This' expensive reason 'is hidden in a set of hardcore composite processes.

三层结构：金属骨架+结合层+复合环氧防腐层

Three layer structure: metal skeleton+bonding layer+composite epoxy anti-corrosion layer

复合环氧树脂桥架不是“纯塑料”，而是金属骨架+多层复合材料的复合结构。针对金属与非金属因膨胀系数不同易脱层的问题，设计上在金属与非金属之间加入了结合层；为解决易粉化、易老化的问题，在桥架表面模压了具有抗光照等特殊作用的保护层。结构层由外至内依次为：保护层→防火层→防腐层→保护层，各层通过模压紧密结合成一体。

Composite epoxy resin bridge is not a "pure plastic", but a composite structure of metal skeleton and multi-layer composite materials. In response to the problem of delamination between metals and non metals due to their different coefficients of expansion, a bonding layer has been added between the metals and non metals in the design; To solve the problems of powdering and aging, a protective layer with special functions such as light resistance has been molded on the surface of the bridge. The structural layers are arranged from the outside to the inside as follows: protective layer → fireproof layer → anti-corrosion layer → protective layer, and each layer is tightly bonded together by molding.

制备工艺：钢塑共挤+超声波焊接，工业化流水线生产

Preparation process: Steel plastic co extrusion+ultrasonic welding, industrial assembly line production

该产品采用钢塑共挤工艺将防腐层、防火层与保护层复合于镀锌钢衬表面。金属骨架先由冷弯成型机组轧制成型，复合环氧树脂防腐材料层通过钢塑共挤完成，在共挤前需对钢衬涂刷结合层。组装工序采用超声波焊接工艺，桥架侧帮与小横担组装部位采用燕尾式结构——所有工艺均在自动化流水线上完成，保证品质一致性。

This product adopts the steel plastic co extrusion process to composite the anti-corrosion layer, fireproof layer, and protective layer on the surface of the galvanized steel lining. The metal skeleton is first rolled and formed by a cold bending forming unit, and the composite epoxy resin anti-corrosion material layer is completed through steel plastic co extrusion. Before co extrusion, a bonding layer needs to be applied to the steel lining. The assembly process adopts ultrasonic welding technology, and the assembly parts of the bridge frame side and small cross arm adopt a dovetail structure - all processes are completed on an automated assembly line to ensure consistent quality.

性能硬指标：寿命30年、跨度15米、荷载250kg/m

Performance hard indicators: lifespan of 30 years, span of 15 meters, load capacity of 250kg/m

根据相关机构鉴定，该产品使用寿命超过30年——有案例显示使用15年后未观察到褪色和老化现象。结构上采用中空断面设计，自重较轻但承载能力和抗扭曲变形能力较强。跨度可达12-15米，荷载设计系数不低于1.5，当桥架宽度≤800mm时，额定均布荷载为200kg/m；当宽度>800mm时，达250kg/m。

According to relevant institutions' appraisal, the product has a service life of over 30 years - there are cases showing that no fading or aging phenomenon has been observed after 15 years of use. Structurally, it adopts a hollow section design, which has a light weight but strong bearing capacity and resistance to torsional deformation. The span can reach 12-15 meters, and the load design factor is not less than 1.5. When the bridge width is ≤ 800mm, the rated uniformly distributed load is 200kg/m; When the width is greater than 800mm, it reaches 250kg/m.

防火阻燃：氧指数≥36%，遇火可“自熄”

Fireproof and flame retardant: Oxygen index ≥ 36%, can "self extinguish" in case of fire

产品在防火层中添加了氢氧化铝、阻燃剂等成分，氧指数≥36%，属于难燃级别。在遇到外部火灾或电缆火灾时，可挥发出水蒸气，以熄灭火源、阻止火焰蔓延并降低电缆环境温度，保证电缆在一定时间内的畅通。

The product has added components such as aluminum hydroxide and flame retardants in the fireproof layer, with an oxygen index of ≥ 36%, which belongs to the flame retardant level. In the event of an external fire or cable fire, water vapor can be released to extinguish the source of the fire, prevent the spread of flames, and lower the ambient temperature of the cable, ensuring that the cable remains unobstructed for a certain period of time.

一句话总结： 复合环氧树脂桥架贵在“钢塑复合”这套工艺——钢骨架承重、环氧防腐层抗蚀、保护层抗老化、防火层阻燃，四层一体、30年免维护。不适合所有项目，但适合那些“修一次比买一次还贵”的场景。

One sentence summary: composite epoxy resin bridge is based on the process of "steel plastic composite" - steel skeleton bearing, epoxy anti-corrosion coating corrosion resistance, protective layer aging resistance, fireproof layer flame retardant, four layers in one, 30 years maintenance free. Not suitable for all projects, but suitable for scenarios where 'repairing once is more expensive than buying once'.

本文由济南电缆桥架友情奉献.更多有关的知识请点击:http://www.sdhangfeng.com真诚的态度.为您提供为多维度的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

This article is a friendly contribution from Jinan Cable Bridge For more information, please click: http://www.sdhangfeng.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.