Carbon nanotubes polymer material dryer repair bearing wear and tear of the case

Drying cylinder bearing wear of repairing the scene analysis and case pictures one paper company 8 workshop 2400 paper machine dryer in the process of applying for a long time, due to the damage of bearing, metal fatigue wear and operating elements, such as care from paper machine dryer local axis wear phenomenon. Enterprise at present there are a large number of drying cylinder axis wear problem, and many of the equipment to run in spite of serious affect the continuous consumption of the enterprise. Repair field enterprise personnel and sauvy technical collaboration with each other, by the enterprise personnel as bearing dismantling work and shaft appearance disposal work, including polishing, degreasing and appearance appearance sauvy technical personnel as the tooling repair process recovery bearing the size of the work, the scene to stop the match smoothly, only 6 hours is complete bearing level 2 of the repair work. Sauvy industrial carbon nano polymer material dryer repair of bearing wear case sauvy industry and some paper for active and full of effect of collaboration, the following is the collaboration of drying cylinder bearing a repair site. The coordination number of drying cylinder shaft repair to 2, 170 mm in diameter, uneven wear quantity is 2 mm, desizing and discharge fit between bearing and bearing a way. 1 cylinder bearing wear of repair operations. Drive shaft rotation speed in < 750 r/min, operating temperature - in 100 200 ℃, and failing to finish machining, tooling repair is online repair technology can guarantee to ensure the best technology of concentricity; 2. On the basis of the wear parts processing conditions of unilateral or bilateral ( Front axle shoulder/rear axle shoulder) Positioning folio fixtures, tooling made of thick wall steel tube or round steel wall thickness shall ensure there is enough strength and stiffness, make sure that there is no deformation; Fixed diameter size tolerance in wear parts of the original tolerance based on adding 0. 03 - 0. 5 mm, both sides have the connecting screw hole, positioning pin hole and slot, nesting nesting unilateral 1 - groove depth 1. 5mm。 3. The preparation work before construction, such as tools, materials and spare parts need to change. 4. Using acetylene grease gun baked into the wear parts appearance, carbide to grease. 5. With sand or open tool to repair parts with metal nature, wash clean thoroughly with anhydrous ethanol. To ensure the appearance clean, dry, rough and strong. 6. Empty test mould, check status. Tooling empty after test have no problem with anhydrous ethanol/acetone after tooling in appearance to wipe clean, besmear brushs SD7000 tuomoji, prevent not to bond. 7. Severe proportionally mixed sauvy SD7104 carbon nano polymer materials, repeat until the color differences on average, without off color. The temperature low, want to use iodine tungsten lamp heating material, in order to reconcile. Reconcile the data to the harmonic board she into slices, and immediately daub, case hardening. 8. Daub on the inner wall of the repair parts and mould appearance, material, paint first apply a layer of thin materials in repair parts appearance, and repeat operation pressure, compress the data into the appearance of every pore, to ensure that the adhesive; Information shall not exceed the depth of the wear size, thickness, prevent form the initial curing temperature and time affects the diameter size of the effect after repair. Achieve the best effect of filling out and make sure they have redundant data. Special emphasis, repair data cannot apply to locate areas and extrusion to locate parts. Ambient temperature below 15 ℃, the available iodine tungsten lamp heating tools such as the repair parts to stop heating, to ensure that data when daub, external temperature is not lower than 15 ℃, for the bonding. Harmonic data should be in tooling and fastening device in place after 20 minutes to complete, prevent data curing. 9. Curing; When the environment temperature 24 ℃; remove the mould time not less than 6 hours Data integrity to mechanical properties of not less than 24 hours, but every progress 11 ℃ temperature curing time in half. Pay attention to, not with open direct contact information, and the heating temperature beyond material shall be the highest temperature, don't let the data of temperature and substrate temperature difference is too large, rising and dropping drastically to prevent. 10. Remove the mould; In the process of disassembly don't hitting, stay out of damaged materials. From discharging hole extrusion of saw blade, polishing machine, or data file, sandpaper, such as tools to remove, not allowed to hit or break by hand. 11. Device should be clean before locating sleeve, bearings, and anhydrous ethanol cleaning repair of rear axle head remaining release agent. 12. Gear shaft parts, must according to the time and use hot assembly, the shaft parts can be easily device in place, to prevent the hammer.