Hydraulic cylinder bore surface scratch repair method

Hydraulic cylinder bore surface scratch repair method

Engineering hydraulic cylinder traditional repair method is to disassemble the damaged parts after outsourcing repair, or brush plating or the surface of the overall scraping and research, the repair cycle of the hydraulic cylinder block scratched repair long, high cost.

　　Repair process:　 　　

　　1, with oxygen - acetylene flame baking scratched parts (master the temperature, so as not to surface annealing), the perennial penetration of metal surface oil baked out, baked to no sparks splash.　 　　

　　2, the scratched parts with angle grinder surface treatment, grinding depth of 1 mm or more, and along the guide rail grinding out grooves, is a dovetail groove. Scratch the ends of the drill hole deepening, change the force situation.　 　　

　　3, with degreasing cotton dipped in acetone or anhydrous ethanol to clean the surface.　 　　

　　4, will reconcile the uniform Megawatt - Fushi blue 2211F metal repair material coated to the scratched surface; the initial layer should be thin, to be uniform and cover the scratched surface to protect the material and the metal surface bonding, and then the material will be coated to the entire repair site after repeated pressure, so that the material to fill and reach the required thickness, so that it is slightly higher than the surface of the guide rail.　 　　

　　5, the material at 24 ℃ to achieve the various properties need 24 hours, in order to save time, you can increase the temperature by tungsten halogen lamps, the temperature rises 11 ℃ each, the curing time will be shortened by half, the curing temperature of 70 ℃.

　　6, the material curing, with a fine grinding stone or scraper, will be higher than the surface of the guide rail material repair leveling, construction is complete.