1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 08 31 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.26 cap ends; expose for 168 h at 23 C drain fuel and test) Tensile Change, %, max -10 Elongation Change, %, max -15 Modulus at 100% Elongation Change, %, max -25 3.11 BURST PRESSURE, m
2、in (ASTM D 380) Hose Size, mm Burst Pressure (Approximate I.D.) MPa 9.53 - 15.87 1.2 15.87 and larger 0.34 3.12 STATIC ELECTRICAL RESISTANCE, max 5 megaohms (Test method tbd, measured over the length of the part) 3.13 VACUUM COLLAPSE, max 20% Test Method: The hose shall be subjected to a vacuum of 6
3、8 kPa while bent over a mandrel having a diameter of 10 times the nominal O.D. of the hose for a duration of 24 h at 100 +/- 2 C. The outside diameter shall not be less than 90% of the original. This requirement shall not apply to sizes larger than 15.87 nominal I.D. 3.14 COLD FLEXIBILITY, Hose No c
4、racks or breaks Test Method: A 450 mm length of hose filled with Fuel C shall be aged for 70 h at 23 C. After aging, the hose shall be drained. Then, hose together with a mandrel having a diameter 10 times the nominal O.D. will be conditioned for 70 h at -40 C. The conditioned hose shall show no sig
5、ns of cracking or disintegration when bent 180 deg over the mandrel. This flexing shall be accomplished within four seconds. For straight hose over 17.28 mm I.D. and all preformed hoses, prepare strips from the Fuel C aged hose 13 mm wide with length to be equal to the developed length of the part.
6、Condition the strips and a 130 +/- 3 mm mandrel for 70 h at -40 C. Bend the strips over the mandrel and examine for cracking. 3.15 HIGH TEMPERATURE RESISTANCE No cracks Test Method: Prepare for oven aging a piece of hose bent into a free loop (approx 250 mm diameter) until the ends meet. For straigh
7、t hose over 19.05 mm I.D. and all preformed hoses prepare strips of hose 13 mm wide with length to be equal to the developed length of the part. Age hose or test specimens in an air circulating oven for 70 h at 124 +/- 2 C. At the end of the aging period examine for cracks, restraighten and/or re-lo
8、op and examine again noting all conditions. No signs of cracking are permitted when examined with a 7X power glass. ENGINEERING MATERIAL SPECIFICATION WSL-M96D33-A5 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 6 3.16 OZONE RESISTANCE, Cover Rating 0 Test Me
9、thod: FLTM BP 101-01, Procedure B, after the following sequence: . Immerse in Fuel C for 48 h at 23 +/- 2 C . Air dry for 70 h at 23 +/- 2 C . Elongate 20% 3.17 OVALITY, min 75% (Not applicable to hoses with I.D. greater than 16.28 mm, unless otherwise specified on engineering drawing) I.D. minimum
10、Ovality = _ x 100 I.D. maximum 3.18 FLAMMABILITY, Cover Self extinguishing (ISO 3795) in 1 minute 3.19 FUEL PERMEABILITY RESISTANCE, 40 C, 13.8 kPa 10 g/m2/24 h 75% FUEL C/25% METHANOL 60 C, 13.8 kPa 40 g/m2/24 h (FLTM BP 114-02, fuel permeation by recirculation, 40 C) 3.20 COMPRESSION SET, max 75%
11、(FLTM BP 108-06) 3.21 ADHESION, min (ASTM D 413, Strip Method, Type A) Adhesion greater than the Barrier to Cover strength of the material 3.22 RESISTANCE TO KINKING (Not applicable to hoses with I.D. greater than 16.28 mm, unless specified on engineering drawing) Test Method: Insert required length
12、 of hose on test fixture securing each end with metal clamps. When installing hose, it shall be bent within 5 s in the same plane and direction as its free state curvature. Place fixture in an oven at 120 +/- 2 C for 1 h. Remove fixture from oven and within 5 minutes pass a steel ball of specified d
13、iameter through hose installed on fixture. Ball must pass freely. Nominal I.D., I.D. Limits Test Sample Ball Diameter mm mm Length, mm, min mm 10.67 10.41 - 10.92 510 4.75 +/- 0.05 12.20 11.94 - 12.45 660 5.08 +/- 0.05 ENGINEERING MATERIAL SPECIFICATION WSL-M96D33-A5 Printed copies are uncontrolled
14、Copyright 2006, Ford Global Technologies, LLC Page 5 of 6 Sample Selection: Production hose selected for the kink test should represent, as nearly as possible, minimum wall thickness. When recording results include wall thickness, ovality, and dimension “A“ (see above). This dimension is measured wh
15、ile sample is on the test fixture. 3.23 INSTALLATION EFFORT, max 89 N Test must be completed satisfactorily with initial production parts for ISIR approval. Parts must be retested whenever any change is made which may affect part installation effort. Test Method: Cut hose to 41 +/- 2.5 mm length and
16、 immerse one end in 20W oil to approximately 6.4 mm depth. Immediately install hose on the test fixture with lubricated end inserted over SAE J962 Style A formed tube to an engagement of 19 mm. Test load application shall not exceed 1 minute. Nominal Diameter A Diameter B Diameter C (Reference) mm +
17、/- 0.05 mm +/- 0.08 mm +/- 0.08 4.8 Ref SAE 3.58 9.55 6.4 Ref SAE 5.33 11.81 7.9 Ref SAE 6.91 14.68 9.5 Ref SAE 8.51 15.67 19.1 22.5 18.30 26.20 31.8 35.5 32.00 40.90 38.1 42.2 38.00 47.10 44.5 48.9 44.00 53.30 ENGINEERING MATERIAL SPECIFICATION WSL-M96D33-A5 Printed copies are uncontrolled Copyrigh
18、t 2006, Ford Global Technologies, LLC Page 6 of 6 3.24 HOSE ELONGATION, min 135% Test Method: Elongate a minimum 150 mm length of hose marked with 25 mm gage length to 135% (59 mm between gage marks) at a rate of 500 mm/minute. Remove from fixture and examine for cracks or breaks. None are allowed.
19、Proof pressure test at 35 kPa of water or air under water may alternatively be used after 135% elongation to indicate pass or fail. Use production hose clamps and mandrels simulating production tube end form. 3.25 HOSE IDENTIFICATION The colored tracer cord in the reinforcement of the hose may be us
20、ed for source identification. The color shall be determined between Purchasing and the supplier. The word gas/fuel and the coding described below shall appear on the outer cover of the hose in contrasting color and repeated at intervals of 60 mm or less. Mandrel cured hose may be coded once per part
21、. The following format is recommended: a) Supplier identification code. b) Date of manufacture (week, year) and plant designation if supplier has more then one plant producing hoses to this specification. No space between letters. Mandatory on hoses longer then 80 mm only. c) Ford trademark on hoses
22、 longer then 150 mm. d) All of the above printing shall be clearly and legibly printed letters of 4.5 - 6 mm in height and width. When hose is less then 80 mm long, width of letters may be reduced to 3 mm. The following code format is recommended, but not mandatory: G 2 01 Where: G = Plant Designation 2 = Year (single digit) 01 = Week (2-digit number)
