銅基納米復合減摩涂料在抗腐蝕油套管螺紋接頭上的應用

Application of Nano-copper-based Composite Anti-friction Coating for Thread Connection of Anti-corrosion Tubing/Casing

摘要: 將高度濃縮納米銅懸浮液與聚四氟乙烯顆粒按適當比例混合，并以特種聚丙烯酸樹脂為主要黏結劑，制備出銅基納米復合減摩涂料。將該復合減摩涂料用于N80S、P110S、TP95TS三種材質(zhì)的抗腐蝕油套管接頭，并在工廠進行標準全尺寸上卸扣試驗。試驗結果表明：卸扣后螺紋表面未出現(xiàn)任何明顯的螺紋黏結劃傷；接箍表面經(jīng)該減摩涂料處理可有效提高其螺紋接頭的抗黏結性能，使其達到與鍍銅相當?shù)牧己眯Ч?

Abstract: A nano-copper-based composite anti-friction coating is prepared by means of mixing the highlyconcentrated nano-copper suspension liquid with the PTFE particles at an appropriate proportion,and using a special acrylic resin as the binder.The composite anti-friction coating is applied to the N80S,P110S and TP95TS thread connections for the anti-corrosion tubing and casing,and subjected to the mill full-scale makeup/breakout test.The test result shows that after breakout,no remarkable sign of galling or scratch of the thread surface is found,and that due to treatment with the said coating,the anti-galling performance of the thread connection can be significantly improved,and effect is as good as that by the copper-plating process..