machinery component maintenance and repair volume 2

... 6-C—Balancing and Vibration Standards. Appendix 6- D—Critical Speeds of Solid and Hollow Shafts. Part III: Maintenance and Repair of Machinery Components . . . . . 367 7 Ball Bearing Maintenance and Replacement ... accuracy and integrity of this document Date: 2005.03.17 10:10:58 +08'00' Practical Machinery Management for Process Plants Volume 3, Third Edition Machinery Component Maintenance and Repair ... availability, and maintainability... justifying computerbased systems in the maintenance area, many such systems are justified 22 Machinery Component Maintenance and Repair by what

Ngày tải lên: 17/10/2013, 12:15

... Machinery Components 321 322 Machinery Component Maintenance and Repair Figure 6-34. Balance tolerance nomogram for G-2.5 and G-6.3, small rotors. Balancing of Machinery Components 323 Figure ... formerly USASI and ASA). The principal points of this standard are summarized below. Balance tolerance Balancing of Machinery Components 319 320 Machinery Component Maintenance and Repair Figure ... • • • • • • • • • • • • Machinery Component Maintenance and Repair More precise definition... of Machinery Components 329 The effects of errors 1, 3, 4, and 5 may be demonstrated

Ngày tải lên: 05/08/2014, 12:20

... Balancing—Vocabulary (1981). 2 ISO 1940: Balance Quality of Rigid Rotors (1973) and DIS 2953 1982 with revised test procedure 3 ISO 2953: Balancing Machines—Description and Evaluation (1973). 4 Society ... its component particles for all orientations ofthe body with respect to a uniform gravitational field Component Measuring Device (5.22): A device for measuring and dis-playing the amount and ... test stand in two planes. Figure 6-45 Sketch of a centrifuge The two bearing locations (1) and (2) are chosen as measuring points Unbalance correction is made in the end planes A1 and A2 by applying

Ngày tải lên: 05/08/2014, 12:20

... weight Trang 2classi-Appendix 6-D Critical Speeds of Solid andHollow Shafts 366 Trang 3Part III Maintenance and Repair of MachineryComponents Trang 5Chapter 7 Ball Bearing Maintenanceand Replacement ... Engineering and Interchangeability Data Rings and Balls—The standard material used in ball bearing rings and balls is a vacuum processed high chromium steel identified as SAE 52100 or AISI-52100 Material ... contamination and a pressur-ized and humidity-controlled area is advantageous to avoid moist and/orcorrosive atmospheres Work benches, tools, clothing, and hands should be free from dirt, lint, dust, and

Ngày tải lên: 05/08/2014, 12:20

... Shaft and Housing Shoulder Diameters Ball Bearing Maintenance and Replacement Table 7-4 Shaft and Housing Shoulder Diameters—cont’d 401 402 Machinery Component Maintenance and Repair Figure 7-28 ... matter and nicks will change the position of the shaft in the blocks and affect any measurements taken Figure 7-27 Shaft and housing shoulders 400 Machinery Component Maintenance and Repair ... transportation, or any other purpose, 392 Machinery Component Maintenance and Repair Figure 7-20 After cleaning, inspect spindle parts by visual means and under magnification It is important that

Ngày tải lên: 05/08/2014, 12:20

... Type R bearings with standard (AFBMA Class 0) and loose(AFBMA Class 3) internal fits and the 7000 Series angular-contact bear-ings (29° contact angle) Using the Type R standard fit curve as a ... uncovered on work benches(Figure 7-54) 2 Do not remove a bearing from its box and protective covering untilready for installation 3 When handling bearings, keep hands and tools clean 4 Do not wash out ... deflection curves presented on these charts represent calculationsdetermined from 207-R and 7207 bearings These specific axial and radialdeflection conditions occur only in these bearings However, in

Ngày tải lên: 05/08/2014, 12:20

... Bearing Maintenance and Replacement 445Table 7-6 Bearing Maintenance Checklist—cont’d (Table continued on next page) Trang 7Table 7-6 Bearing Maintenance Checklist—cont’dTrang 8Chapter 8Repair and Maintenance ... gaskets,can damage these fits and make concentricity of shaft and housing Figure 8-4 Checking for run-out. Trang 12Repair and Maintenance of Rotating Equipment Components 451Figure 8-5 Checking ... Volume 2 of this series) Anoptical flat is a transparent quartz or pyrex disc having at least one surfaceflat within 0.00001 in to 0.00005 in (0.025 to 0.125 microns) (see Figure Repair and Maintenance

Ngày tải lên: 05/08/2014, 12:20

... (using a 3/32in EWTh-2 tip) and a filler rod size of 3/32or 1/8in (2.5 or 3.2 mm) diameter should be used Trang 2after completion The rotational speed should be set for the welding speed(2–3 in per ... areas are overlaid with Inconel 182 (AWSA5.11 ENiCrFe-3) After rough machining, the cases are stressrelieved and then machined to final dimensions (Figures 8-20 and 8-21) The erosion/corrosion problem ... equipment, andmost in-house process plant maintenance shops have their preferred makesand techniques We would now like to deal with the question of how torepair damaged journals, seal areas, and general

Ngày tải lên: 05/08/2014, 12:20

... part to make his own tests and reach the same results as those of therepairer (Figures 8-29 and 8-30) proce-Ascertaining Integrity of the Repair Process A reputable repairer will take every precaution ... the weld repair of highly loadedrotors Insurance companies are promoting the repair of components, provided(and it’s a very important proviso) that the risks of repair can be assessedand controlled ... the component is being temporarilyexported for repair and will be returned to the country of origin The pro-cedure is simpler than for exporting new machinery Transporting Damaged or Repaired Components

Ngày tải lên: 05/08/2014, 12:20

... T-1, second wheel T-2, and so on If workingfrom coupling end, stencil first wheel C-1, second wheel C-2, and im-so on 7 The rotor should be suspended vertically above a sand box to softenthe ... applied to the surface and allowed to seep intocracks for 15 to 20 minutes The surface is then cleaned and adeveloper applied The developer acts as a capillary agent (orblotter) and draws the dyed ... areas should be tightly wrapped and sealed with protectivecloth pol-4 The rotor should be sandblasted using No 5 grade, 80/120 mesh,polishing compound, silica sand, or aluminum oxide 5 When the

Ngày tải lên: 05/08/2014, 12:20

... Ring, and Gland Dimensions. O-ring sizes have been dardized and range in size from an inside diameter of 0.029 in and a cross stan-Table 10-18 Gland Design Guide O-Ring Section 070 103 139 210 275 ... piston and rod sealing duty.To calculate your own gland design, refer to Table 10-18, “Gland Design Guide.” Figure 10-17 A sampling of O-ring and gland dimensions. Trang 121 Bloch, H P and Geitner, ... 1944, Pages 205–214. 7 Tichvinsky, L M and Fischer, E G., “Boundary Friction in Bearings at Low Loads,” Transactions of the ASME, Vol 61, 1939. 8 Reference 6, Page 206. 9 Reference 6, Page 210. 10

Ngày tải lên: 05/08/2014, 12:20

... 212–213, 213f, 253, 254f OPTALIGN system, for use in, 212–213, 213f reverse-indicator method of, 205, 208–210, 209f, 228, 229f, 230f, 231f reverse-indicator with clamp-on jigs method of, 205, 207f ... 28 0, 28 3 quasi-static condition of, 26 6, 26 6f, 26 7f resonance in, 26 8 26 9 static or force, 26 2 26 3, 26 3f, 26 4f, 27 3f types of, 26 2 26 7 unbalance mass as cause in, 28 ... correction of, 217–218 face and rim indicators used in reduction of, 217–220 jig posts used in, 220 machinery alignment influenced by, 217–218 surface curvatures in, 216f, 218–220, 219f Face-to-face

Ngày tải lên: 05/08/2014, 12:20

... static.For example, assume an armature and fan assembly weighing 2,000 lbsand having a bearing load distribution of 70 percent at the armature (left)end and 30 percent at the fan end (see Figure ... indicating circuit andinstrument must be employed The output from the phase reference sensor Trang 12(scanning head) and the pickups at the rotor-bearing supports are cessed and result in an indication ... plane to rightsupport (c); and r1 and r2, which are the radii of the correction masses inthe left and right planes The instrumentation then indicates the magni-tude and angular position of the required

Ngày tải lên: 11/08/2014, 10:23

... the Unbalance 310 Machinery Component Maintenance and Repair Figure 6-28 Residual unbalance due to angle error. Table 6-3 Interdependence of Angle and Amount Indication Trang 2Reduction Test, ... Machinery Component Maintenance and Repair Table 6-4 Standards for Testing Balancing Machines General industrial Balancing Machines— International DIS 2953 balancing machines Description and Standards ... the 318 Machinery Component Maintenance and Repair Trang 10machine pass the test A similar procedure has been used by the SAE for more than ten years and has proven itself to be practical and foolproof.The

Ngày tải lên: 11/08/2014, 10:23

... seats and shoulders Figure 7-25 Burrs and nicks may interfere with proper seating of the inner ring face against the shaft shoulder. Figure 7-26 A file or stone may be used to remove nicks and ... 10Shaft and Housing Shoulder DiametersRecommended shaft and housing shoulders (Figure 7-27) for varioussizes of bearings are shown in Table 7-4 Checking Shaft and Housing Measurements After all repair ... Foreign matter and nicks will change the position of the shaft in the blocks and affect any measurements taken Figure 7-27 Shaft and housing shoulders. Trang 11Table 7-4 Shaft and Housing Shoulder

Ngày tải lên: 11/08/2014, 10:23

... equipment may 482 Machinery Component Maintenance and Repair (Text continued on page 487) Trang 14Repair and Maintenance of Rotating Equipment ComponentsTable 8-4 Typical Field and Shop Repair Services ... Repair Shops 6,7 Trang 16Repair and Maintenance of Rotating Equipment ComponentsTrang 17486 Machinery Component Maintenance and RepairFigure 8-24 Metalstitch® process of casting repair (courtesy In-Place ... case 470 Machinery Component Maintenance and Repair Figure 8-19 Impeller with direct Stellite overlay in final machined condition. Trang 2Repair and Maintenance of Rotating Equipment Components

Ngày tải lên: 11/08/2014, 10:23

... exceedinglydifficult, and the methods and accuracies required border on (and oftenexceed) the limits of available technology of manufacturing and measur-ing These limits dictate how fast a rotor may run and how ... T-1, second wheel T-2, and so on If workingfrom coupling end, stencil first wheel C-1, second wheel C-2, and im-so on 7 The rotor should be suspended vertically above a sand box to softenthe ... applicable 2 Use of applicable non-destructive test procedures Use NDT proce-dures to determine existence and location of any cracks on shaft and component parts Maximum allowable residual magnetism 2.0gauss

Ngày tải lên: 11/08/2014, 10:23

... pack 2 A lathe 3 Plating tools * Dalic Plating Process 572 4 5 6 7 8 Machinery Component Maintenance and Repair Masking equipment and plating solutions... Oilfield machinery and ... (>HRC 60) 552 Machinery Component Maintenance and Repair The Detonation Gun Process* If we look at the repair of rotating machinery shaft bearings, journals, seal surfaces, and other critical ... Maintain lapping pressures of 20–25 psi when possible. 7. Maintain low lapping speeds of 100–300 SFPM. 558 Machinery Component Maintenance and Repair Protecting Machinery Parts Against Loss of

Ngày tải lên: 11/08/2014, 10:23