施工中常用的藍色護欄，其生產過程需兼顧安全性、耐用性和實用性，多個環節的細節把控直接影響最終產品的質量。

　　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.

　　材料選擇是生產的基礎環節，需優先考慮強度與耐候性。護欄的主體框架通常選用鋼材，應確保鋼材的抗拉強度和屈服強度符合標準，避免因材質過軟導致護欄變形、斷裂。同時，鋼材需經過除銹處理，可采用酸洗、磷化等工藝去除表面銹跡，為后續防腐處理奠定基礎。藍色涂層材料的選擇同樣關鍵，應選用戶外專用的防腐涂料，具備良好的耐紫外線、耐酸堿性能，確保護欄在長期日曬雨淋的環境下不易褪色、剝落，維持藍色外觀的持久性和防護效果。

　　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.

　　結構設計需以安全防護為核心。護欄的高度應符合施工安全規范，通常不低于 1.2 米，防止人員或物體墜落。立桿與橫桿的間距要合理，間距過大會降低防護效果，過小則可能增加材料成本，一般以不超過 15 厘米為宜，既能有效阻擋小型物體穿過，又能保證視野通透。連接處的設計要牢固，立桿與橫桿的焊接點需飽滿、無虛焊，焊接后應進行打磨處理，避免尖銳凸起劃傷人員。對于需要組裝的護欄，連接配件（如螺栓、卡扣）需選用高強度金屬件，確保組裝后整體結構穩定，抗沖擊能力強，能承受一定外力碰撞而不松動。

　　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.

　　工藝處理直接影響護欄的耐用性和安全性。焊接工藝需嚴格把控，焊縫應均勻連續，無氣孔、夾渣等缺陷，焊接完成后需進行探傷檢測，確保焊接質量。涂層施工過程中，需保證涂料均勻覆蓋鋼材表面，厚度達到規定標準，可采用靜電噴涂、浸涂等工藝，使涂層與鋼材緊密結合，增強防腐性能。涂層干燥后，需檢查表面是否有流掛、漏涂等問題，確保藍色外觀均勻一致，無明顯色差。此外，護欄的邊角需進行圓角處理，去除毛刺和尖銳部分，防止施工人員意外碰撞時受傷。

　　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.

　　尺寸精度與一致性不容忽視。生產過程中需使用精密設備進行切割、成型，確保同一批次護欄的立桿、橫桿長度一致，孔徑位置準確，便于現場組裝。護欄的整體平整度要高，安裝后不應出現歪斜、彎曲等現象，影響防護效果和美觀度。對于有特殊尺寸要求的護欄（如弧形、異形護欄），需通過精準的模具設計和加工，保證尺寸符合施工場地的實際需求。

　　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.

　　環保與合規性也是生產中需注意的問題。所使用的涂料和鋼材應符合環保標準，避免含有害物質超標，減少對環境和施工人員健康的影響。生產過程中產生的廢水、廢氣、廢渣需經過處理后排放，符合環保法規要求。同時，護欄的各項性能指標需通過權威檢測機構的認證，確保產品符合國家相關標準和施工安全規范，為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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