摘要：【中文】本发明公开了一种无缝钢管加工工艺，涉及钝化处理技术领域，其技术方案要点包括如下步骤：S1除油：将热镀锌无缝钢管浸泡在碱性脱脂溶液内，温度55‑60℃，持续30‑60s，取出后用水洗、烘干；S2酸洗：将除油后的钢管浸泡在酸性溶液中，温度50‑60℃，持续60‑100s，取出后水洗、烘干；S3钝化：将酸洗后的钢管浸泡在钝化液中，温度50‑60℃，持续2‑4min，取出后于150‑160℃下烘干40‑60s，最后水洗、干燥；所述钝化液包括如下含量的组分：20‑25g/L钼酸钠、5‑8g/L磷酸、30‑50g/L乙醇、3‑5g/L硫酸氧钛、25‑30g/L高分子树脂乳液。本发明具有钝化膜层耐高温性能和耐蚀性好的优点。 【EN】The invention discloses a seamless steel tube processing technology, which relates to the technical field of passivation treatment, and the technical scheme main points comprise the following steps: s1 oil removal: soaking the hot-dip galvanized seamless steel pipe in an alkaline degreasing solution at the temperature of 55-60 ℃ for 30-60s, taking out, washing with water and drying; s2 acid washing: soaking the deoiled steel pipe in an acid solution at 50-60 ℃ for 60-100s, taking out, washing with water, and drying; s3 passivation: soaking the acid-washed steel pipe in a passivation solution at 50-60 ℃ for 2-4min, taking out, drying at 160 ℃ for 40-60s, and finally washing and drying; the passivation solution comprises the following components in percentage by weight: 20-25g/L of sodium molybdate, 5-8g/L of phosphoric acid, 30-50g/L of ethanol, 3-5g/L of titanyl sulfate and 25-30g/L of high polymer resin emulsion. The invention has the advantages of good high temperature resistance and corrosion resistance of the passivation film layer.