[目的]高碳钢丝高温磷化存在温度较高、能耗高、沉渣量大等问题，亟待解决。[方法]将磷化温度由85°C降低至60°C，并向高温磷化液中分别添加亚硝酸钠、酒石酸、柠檬酸和乙二胺四乙酸二钠(EDTA-2Na)作为促进剂，在高碳钢丝表面制备磷化膜，采用扫描电镜(SEM)、X射线衍射(XRD)、硫酸铜点滴腐蚀试验等方法研究了4种促进剂对高碳钢丝中温磷化膜外观、表面形貌、相结构和耐蚀性的影响。[结果]添加不同促进剂的高碳钢丝中温磷化膜表面均呈灰色或深灰色，促进剂仅改变磷化膜形貌特征，对相结构无显著影响，磷化膜均由Zn_2Fe(PO₄)₂.4H_2O和Zn₃(PO₄)₂.4H_2O两相组成。亚硝酸钠使磷化膜表面由弥散分布的放射状层片结晶形貌变成山脊状和水波状形貌；柠檬酸和EDTA-2Na使磷化膜表面弥散分布的放射状层片结晶组织占比先增大后减小，结晶特征逐渐模糊；酒石酸使磷化膜表面层片结晶组织由放射状变成球状，且球状组织数量和尺寸逐渐增加，占比增大。亚硝酸钠、酒石酸、柠檬酸和EDTA-2Na的质量浓度分别为0.2、2.0、1.0和0.5 g/L时，磷化膜具有较好的耐蚀性，耐硫酸铜点滴腐蚀时间分别为193、121、140和135 s。适当的促进剂可使放射状磷化结晶组织占比下降，以及微裂纹和孔隙缺陷的减少，这是耐蚀性提高的主要原因。[结论]4种促进剂均能有效提升高碳钢丝中温磷化膜的耐蚀性，它们对磷化膜耐蚀性提升的强弱顺序为：亚硝酸钠>柠檬酸> EDTA-2Na >酒石酸。

[Objective] The problems of high-temperature phosphating of high-carbon steel wires, such as high phosphating temperature, high energy consumption, and large amount of sludge, urgently need to be solved. [Method] The phosphating films were prepared on the surfaces of high-carbon steel wires by adding various accelerators such as sodium nitrite, tartaric acid, citric acid, and disodium ethylenediaminetetraacetate(EDTA-2 Na) to a high-temperature phosphating bath and reducing the phosphating temperature from 85 °C to 60 °C. The effects of the four accelerators on the appearance, surface morphology, phase structure, and corrosion resistance of the medium-temperature phosphating films on high-carbon steel wires were studied by scanning electron microscopy(SEM), X-ray diffraction(XRD), and copper sulfate dropping corrosion testing. [Result] The medium-temperature phosphating films on high-carbon steel wires prepared with different accelerators all exhibited gray or dark gray surface. The accelerators only changed the morphological characteristics of the phosphating films, and had no significant effect on the phase structure, which consisted of Zn_2Fe(PO₄)₂.4H_2O and Zn₃(PO₄)₂.4H_2O phases. Sodium nitrite changed the surface morphology of the phosphating film from a dispersed radial flake-like crystals to ridge-like and water-wave-like morphologies. Citric acid and EDTA-2 Na caused the proportion of dispersed radial flake-like crystal structure to first increase and then decrease, with the crystalline characteristics gradually becoming blurred. Tartaric acid changed the flake-like crystalline structure from radial to spherical, and the number and size of the spherical structures gradually increased, along with their proportion in the phosphating film. When the mass concentrations of sodium nitrite, tartaric acid, citric acid, and EDTA-2 Na were 0.2, 2.0, 1.0, and 0.5 g/L, respectively, the phosphating films exhibited good corrosion resistance, with the corresponding copper sulfate dropping corrosion resistance times of 193, 121, 140, and 135 s. The improvement of corrosion resistance was primarily attributed to the decrease in the proportion of the radial flake-like crystal structure, along with a reduction in microcracks and pore defects, facilitated by appropriate accelerator addition. [Conclusion] All four accelerators effectively enhanced the corrosion resistance of the medium-temperature phosphating films on high-carbon steel wires. The order of their effectiveness in improving the corrosion resistance of the phosphating films was as follows: sodium nitrite > citric acid > EDTA-2 Na > tartaric acid.