施工中常用的蓝色护栏，其生产过程需兼顾安全性、耐用性和实用性，多个环节的细节把控直接影响最终产品的质量。

　　The commonly used blue guardrails in construction require consideration of safety, durability, and practicality in the production process, and the control of details in multiple stages directly affects the quality of the final product.

　　材料选择是生产的基础环节，需优先考虑强度与耐候性。护栏的主体框架通常选用钢材，应确保钢材的抗拉强度和屈服强度符合标准，避免因材质过软导致护栏变形、断裂。同时，钢材需经过除锈处理，可采用酸洗、磷化等工艺去除表面锈迹，为后续防腐处理奠定基础。蓝色涂层材料的选择同样关键，应选用户外专用的防腐涂料，具备良好的耐紫外线、耐酸碱性能，确保护栏在长期日晒雨淋的环境下不易褪色、剥落，维持蓝色外观的持久性和防护效果。

　　Material selection is a fundamental step in production, and priority should be given to strength and weather resistance. The main frame of the guardrail is usually made of steel, and the tensile strength and yield strength of the steel should meet the standards to avoid deformation and fracture of the guardrail due to the material being too soft. At the same time, steel needs to undergo rust removal treatment, and surface rust can be removed using processes such as acid washing and phosphating, laying the foundation for subsequent anti-corrosion treatment. The selection of blue coating materials is equally crucial. Outdoor specific anti-corrosion coatings should be chosen, which have good UV resistance and acid and alkali resistance to ensure that the guardrail is not easily faded or peeled off in long-term sun and rain environments, maintaining the durability and protective effect of the blue appearance.

　　结构设计需以安全防护为核心。护栏的高度应符合施工安全规范，通常不低于 1.2 米，防止人员或物体坠落。立杆与横杆的间距要合理，间距过大会降低防护效果，过小则可能增加材料成本，一般以不超过 15 厘米为宜，既能有效阻挡小型物体穿过，又能保证视野通透。连接处的设计要牢固，立杆与横杆的焊接点需饱满、无虚焊，焊接后应进行打磨处理，避免尖锐凸起划伤人员。对于需要组装的护栏，连接配件（如螺栓、卡扣）需选用高强度金属件，确保组装后整体结构稳定，抗冲击能力强，能承受一定外力碰撞而不松动。

　　The structural design should be centered around safety protection. The height of the guardrail should comply with construction safety regulations, usually not less than 1.2 meters, to prevent personnel or objects from falling. The distance between the upright pole and the horizontal pole should be reasonable. If the distance is too large, it will reduce the protective effect, and if it is too small, it may increase the material cost. Generally, it is recommended not to exceed 15 centimeters, which can effectively block small objects from passing through and ensure clear visibility. The design of the connection should be firm, and the welding points between the upright and horizontal bars should be full and free of virtual welding. After welding, they should be polished to avoid sharp protrusions that may scratch personnel. For guardrails that need to be assembled, high-strength metal parts (such as bolts and buckles) should be selected to ensure the overall structural stability, strong impact resistance, and the ability to withstand certain external force collisions without loosening after assembly.

　　工艺处理直接影响护栏的耐用性和安全性。焊接工艺需严格把控，焊缝应均匀连续，无气孔、夹渣等缺陷，焊接完成后需进行探伤检测，确保焊接质量。涂层施工过程中，需保证涂料均匀覆盖钢材表面，厚度达到规定标准，可采用静电喷涂、浸涂等工艺，使涂层与钢材紧密结合，增强防腐性能。涂层干燥后，需检查表面是否有流挂、漏涂等问题，确保蓝色外观均匀一致，无明显色差。此外，护栏的边角需进行圆角处理，去除毛刺和尖锐部分，防止施工人员意外碰撞时受伤。

　　The process directly affects the durability and safety of the guardrail. The welding process needs to be strictly controlled, and the weld seam should be uniform and continuous, without defects such as porosity and slag inclusion. After welding is completed, non-destructive testing should be carried out to ensure welding quality. During the coating construction process, it is necessary to ensure that the coating evenly covers the surface of the steel and the thickness meets the specified standards. Electrostatic spraying, immersion coating and other processes can be used to tightly bond the coating with the steel and enhance its anti-corrosion performance. After the coating is dried, it is necessary to check whether there are any issues such as sagging or missed coating on the surface, to ensure that the blue appearance is uniform and consistent, without obvious color difference. In addition, the corners of the guardrail need to be rounded to remove burrs and sharp parts, in order to prevent construction personnel from being injured in accidental collisions.

　　尺寸精度与一致性不容忽视。生产过程中需使用精密设备进行切割、成型，确保同一批次护栏的立杆、横杆长度一致，孔径位置准确，便于现场组装。护栏的整体平整度要高，安装后不应出现歪斜、弯曲等现象，影响防护效果和美观度。对于有特殊尺寸要求的护栏（如弧形、异形护栏），需通过精准的模具设计和加工，保证尺寸符合施工场地的实际需求。

　　Dimensional accuracy and consistency cannot be ignored. Precision equipment is required for cutting and forming during the production process to ensure that the length of the vertical and horizontal bars of the same batch of guardrails is consistent, the hole position is accurate, and it is easy to assemble on site. The overall flatness of the guardrail should be high, and there should be no tilting, bending or other phenomena after installation, which will affect the protective effect and aesthetics. For guardrails with special size requirements (such as curved or irregular guardrails), precise mold design and processing are required to ensure that the size meets the actual needs of the construction site.

　　环保与合规性也是生产中需注意的问题。所使用的涂料和钢材应符合环保标准，避免含有害物质超标，减少对环境和施工人员健康的影响。生产过程中产生的废水、废气、废渣需经过处理后排放，符合环保法规要求。同时，护栏的各项性能指标需通过权威检测机构的认证，确保产品符合国家相关标准和施工安全规范，为施工安全提供可靠保障。

　　Environmental protection and compliance are also issues that need to be taken into account in production. The coatings and steel used should comply with environmental standards, avoid exceeding harmful substances, and reduce the impact on the environment and the health of construction personnel. The wastewater, exhaust gas, and waste residue generated during the production process need to be treated and discharged in accordance with environmental regulations. At the same time, the performance indicators of the guardrail need to be certified by authoritative testing institutions to ensure that the product complies with relevant national standards and construction safety regulations, providing reliable guarantees for construction safety.

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