Research of Solid Lubricant Coating on the Surface of Grouting Tube

The composition of solid lubricant coating is researched on the surface of grouting tube in the purdah grouting.The study analyzes its surface adhesive power,wear-resisting property,shock resistance and drawing sticking friction resistance with a adhesion-testing instrument,a wear-resistant instrument,a impact testing machine and a electron universal testing machine.Chemical change of wear fore and after was studied by a Fourier transform infrared(FTIR)spectrometer for the solid lubricant coating.The results show solid lubricant coating containing ethoxyline resin is superior to containing unsaturated resin at the wear-resisting property and surface adhesive power,while the solid lubricant coating containing ethoxyline resin is inferior to the unsaturated resin at the shock resistance.Solid lubricant coating containing unsaturated resin is less than the containing ethoxyline resin,25% lower than unsolid lubricant coating on the surface of grouting tube at the drawing sticking friction resistance.The wear-resisting property and the drawing sticking friction resistance are declined with the coating thickness of the solid lubricant coating.The results also show the part functional group changes after wear in FTIR and the surface wear and lubricant mechanism is layer flake off.