冷拔管坯表面化学处理工艺的改进

    IMPROVEMENT OF SURFACE CHEMICAL-TREATMENT PROCESS FOR COLD-DRAWN TUBE BLANK

    • 摘要: 简介了莫斯科钢管厂在管坯表面处理(镀铜、磷化、中和、皂化)方面的工艺改进,以及使用沥青皂润滑剂和采用芯棒喷嘴接头向拔制过程中的管内喷射新型矿物油的润滑工艺。上述工艺改进具有提高拔管质量、减少排污量等优点。

       

      Abstract: Briefed in the paper are the improvement conducted by Moskovsk Steel Tube Works on surface treatment process for tube blanks including such operation steps as copper-coating, phrosphurization, neutralization and soaping. Also described here is the lubrication process concerning the use of pitch-soap lubricant and spraying new type mineral oil into the tube being drawn through the mandrel nozzle. The above mentioned improved processes are advantageous in improving pipe quality and reducing waste discharge.

       

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