FORD FLTM BL 103-02-2001 CAVITATION EROSION - CORROSION CHARACTERISTICS OF ENGINE COOLANTS ON ALUMINUM COOLANT PUMPS (Replaces FLTM BL 003-02)《发动机冷却液对铝制冷却液泵的空蚀和腐蚀作用 替代FLTM BL 003-0.pdf

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1、FORD LABORATORY TEST METHOD BL 103-02 2001 0822 CAVITATION EROSION - CORROSION CHARACTERISTICS OF ENGINE COOLANTS ON ALUMINUM COOLANT PUMPS Revised Editorial - no technical change A. Cockman Application This is a bench test procedure used to determine the effect of engine coolants on cavitation eros

2、ion- corrosion of aluminum coolant pumps. Apparatus Required Aluminum Coolant Pump Cavitation-Erosion Test Stand (See Illustration and Parts List, Figure 1 .) Aluminum Coolant Pump Capable of 4800 +/- 100 rpm at 40 +/- 2 OC and generating an inlet vacuum of 40 +/- 5 kPa and an outlet pressure of 103

3、 +/- 3 kPa Motor 5 horsepower minimum. Inlet Restriction Plate 20 mm inside diameter sharp edge orifice in 6 mm thick steel plate x 45 mm outside diameter. (Refer to View A, Figure 1 .) Conditioning and Test Conditions All test values indicated herein are bsed on material conditioned in a controlled

4、 atmosphere of 23 +/- 2 OC and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Clean stand thoroughly before ech test. Steam cleaning of the stand has been found to be satisfactory. Other cleaning proc

5、edures that do not leave residue in the system may be used. Reassemble the stand using new rubber hoses. I Date I Action I Revisions I Copynght02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD BL 103-02 2. Install pump on test stand. Use new gaskets each time the pump is installed. Do

6、 not use a gasket sealer. 3. The coolant under test shall be 15 % by volume of the coolant concentrate and 85 % corrosive test water per ASTM D 2809, Section 5. Analyze mixture for inhibitor concentration and specific gravity. 4. Fill the test stand with the test coolant. 5. Start the test run and a

7、djust to the following conditions: (a) (b) (c) (d) Pump speed 4800 +/- 100 rpm. Coolant temperature 40 +/- 2 OC; (#I9 in Figure 1). System outlet pressure 103 +/- 3 kPa; (#32 in Figure 1). Pump inlet pressure 34 - 51 kPa vacuum; (#31 in Figure 1). 6. After the above conditions are obtained, increase

8、 the coolant temperature to 1 18 +/- 2 O C. 7. The pump is operated for a total of 1000 hours. The test is interrupted at 100, 300, and 600 hours. The stand is allowed to cool. The coolant then is drained and saved for reinstallation. The pump is removed and the interior is visually inspected and ra

9、ted from 1 to 10 (see Attachment A for rating system). A 60 mL coolant sample is taken and analyzed for inhibitor concentration and specific gravity. The test is restarted and run to the next inspection. 8. The report shall include the following information: The Test Method Number (FLTM BL 103-02) P

10、ump Type (Part Number) Coolant Identification Percent depletion of inhibitors and initial and final specific gravity Rating of pump condition at 100 h, 300 h, 600 h, and 1000 h Denote the number of hours to test termination (.e., until pump leaks or (Photograph pump at each inspection) 1 O00 h, whic

11、hever occurs first) Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities. Page 2 of 4 Copyright 02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD BL

12、 103-02 Ratinq 10 9 8 7 6 5 4 3 2 1 CAVITATION EROSION - CORROSION CHARACTERISTICS OF ENGINE COOLANTS ON ALUMINUM COOLANT PUMPS ATTACHMENT A - RATING SYSTEM No erosion present; no metal loss. No change from original casting configuration. Staining permitted. Minimal erosion. Some round of sharp corn

13、ers or light smoothing or both, or polishing of working surfaces. Light erosion may be generalized on working surfaces. Dimensional change not to exceed 0.4 mm. Erosion with dimensional change not to exceed 0.8 mm. permitted. Random pitting to 0.8 mm Erosion with dimensional change not to exceed 0.8

14、 mm. Depressions, grooves, clusters of pits, or scalloping, or both, within 0.8 mm dimensional change limit permitted. Erosion with dimensional change not to exceed 1.6 mm. Small localized seas of metal emoval in high impingement regions or random pits to 1.6 mm permitted. Erosion with dimensional c

15、hange not to exceed 1.6 mm. Small localized areas of metal removal in high impingement regions, clusters of pits within 1.6 mm dimensional change. Random pits to 2.4 mm permitted. Erosion with dimensional change not to exceed 2.4 mm. Depressions, grooves, clusters of pits or scalloping, or both, per

16、mitted. Erosion with any dimensional change over 2.4 mm, and short of pump case failure. Pump case leaking due to erosion. If placement in a rating group is uncertain or borderline, elevate the rating to the higher of the two groups in question. Ratings 1 to 3 are dependent on pump-wall thickness an

17、d are intended to be used as relative ratings for tests using a given pump. Page 3 of 4 Copyright 02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD BL 103-02 CAVITATION EROSION - CORROSION CHARACTERISTICS OF ENGINE COOLANTS ON ALUMINUM COOLANT PUMPS ALUMINUM WATER PUMP EROSION TEST ST

18、AND 1. 3“x32“CuTUBE 2. Yx2“ REDUCTER BUSHING 3 2“ x 2“ Cu TUBE 4 2“TO“NPT 5. 2 NPTTO li4 NPT 6. 1i4“ NPT - TEE AND NIPPLES 7 3“ 2“ REDUCER BUSHING 8 2“ Cu TUBE - 1-112“ 9 ZxZxZCuTEE IO. 2“xYCuTUBE EACH END OF TEE 11 2“ x 3.112“ Cu TUBE EACH END OF ELL 12 2“ELL 13. 2“TO 1-1i2“TO 1-1/2Y 14. I-l/TO 1 R

19、EDUCER 15. 1“ Cu TUBE -8-112 1“ Cu TUBE -5-1/2“ 16 I“45“ELBOW 17 1-112x 1-112x 1-112 Cu TEE WITH 1-112 Cu TUBE -2 LONG EACH END OF TEE 18 1-112x112 REDUCER 19 TEMP BAYONET GAUGE - 112 NPT 20 2x2x2CuTEE WITH I-IE, 1-1/2AND 11“ LONG 2“ Cu TUBES 21. 2 TO 1 REDUCER 22. 1 TO 1“ NPT 23. DRAIN VALVE 24 3 T

20、O 2 REDUCER 25. 3“ TO 7, Cu TUBE 26. 3x3x2TEE 27. 3 TO 2 REDUCER 28. 2“ TO 2“ NPT 29 3000 CHROMALOX 30. 2“ x 2 Cu TUBE ITR 31. - 20 IN Hg VACUUM TO 20 32. - 20 IN. Hg VACUUM PSI PRESSURE GAUGE TO 20 PSI PRESSURE GAUGE 33. VARIABLE TRANSFORMER PUMP INLET RESTRICTOR HOSE VIEW “A Figure 1 Page 4 of 4 Copyright 02001, Ford Global Technologies, Inc

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