Hydraulic hose emergency repair of several methods
During the construction process, construction machinery hydraulic system hose rupture, you can take the following emergency repair methods.
Stick reinforcing method
When the hydraulic system pressure at 25-8.0MPa rupture between the rubber hose can take when sticky patch method: Wipe clean around the hose rupture; painted in the hose rupture "anaerobic" glue, "Ring epoxy resin "glue," 801 "glue or" 502 "in one glue (glue a length of approximately 2-3 times the length of the rupture site); canvas with tape or glue strip overlying wound at 4 - 5 layers (each layer should be coated with glue); would draw canvas strip wound tape the ends tightly knotted; wait until solidification 15-20min after use.
Bundled France
Bundled law applies pressure 16MPa rubber hose rupture following emergency repair. The specific method is: the hose rupture coated gum foregoing construction machinery used in one; rupture site with a width of 2-3 times the length of the oil and rubber adhesive wound at 2-3 layers (each layer should be coated with glue ); No. 12 wire will be wrapped with good oil resistance rubber bundled good; let it solidify.
Bone France
As external forces reusable fitting (shrapnel puncture, crush fracture) or system overload causes large rubber hose rupture site or about to break, you can take the bone France: Wipe clean the hose rupture and cut rupture site; would homemade steel "bone" Insert the hose is cut off ("bone" parts as shown in the drawings, the situation is particularly urgent, they used the same outer diameter of the bone with the hose pipe when the "bone"); plates with homemade clamp the hose and the "bone" chuck (special emergency situations, the available alternative homemade No. 8 wire steel clamp); would take a good hose to clean after use.
Transposition
In the hydraulic system, the same oil rubber hose whose specifications the same, but different oil pressure to bear. Ruptured hydraulic hose mostly bear a larger hose. If W4-60 type excavator, ZL series loader boom cylinder on the two specifications of the same tubing is always connected to the boom cylinder large cavity hydraulic tubing to withstand greater. Accordingly, the method can be used to take transposition: A simple hose rupture sticky patch or bundled; big will the boom cylinder chamber and small chamber tubing can be used interchangeably (ie with unruptured tubing withstand high pressure, with the But after a simple supplement damaged or bundled tubing sticking to withstand low pressure).
Restructuring Act
As the hydraulic system of the rubber hose fittings vary, while high pressure or high pressure hose rupture should not be used "stick and fill method", "bundle Act" or "bone Law", which can be taken to reform law: Saw fitting the hose rupture; find a burst pressure capability, and the length of the hose the hose replacement approximate and saws its fittings; the fracture angle hose fittings welded to the replacement hose; the welding good hose cleaned immediately after use.
Opening Act
In the hydraulic system, valve block some of the oil plays a protective role in system security. Such as: W4-60 type excavator, ZL series loader steering system from the main oil passage through the relief valve to the tank; TY120 bulldozer working device in the hydraulic system relief valve, overload valves, relief valves, etc. oil. When these oil hose rupture in the circuit method can be taken; abandoned in the circuit protection device (such as a "safety valve", etc.); blocked oil hose leading to rupture, so that the oil circuit. In taking break law, should the system load control at rated load between 85% -95%.
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