1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 21 N-STATUS No Replacement Named C. Mracna, NA 2004 09 23 Revised Inserted 3.0; Deleted 3.13, 3.14 & 4 1979 06 01 Released CE3J-DR741361-E Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 5 HOSE,
2、REINFORCED RUBBER - FUEL LINE ESE-M2D286-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a reinforced rubber hose with improved heat, fuel and ozone resistance. 2. APPLICATION The specification was released originally for material used for the fuel line, fuel t
3、ank filter hoses and related evaporative systems. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 CONSTRUCTION The hose shall consist of a smooth
4、bore tube of butadiene/ acrylonitrile compound reinforced with one or more ply of a braided, knit, spiral or woven polyester fabric and covered with either a chlorosulfonated polyethylene or a chlorinated poly-ethylene compound. 3.2 BURST PRESSURE, min 250 psi (ASTM D 380) (1.8 MPa) 3.3 VACUUM COLL
5、APSE, max 10% Test Method: Subject the hose to a vacuum of 20 in Hg (68 kPa) while bent over a mandrel having a diameter 10 times the nominal O.D. of the hose. After and during the 24 h at 102 +/- 3 C, the outside diameter shall not be less than 92% of the original. 3.4 COLD FLEXIBILITY, Tube and Co
6、ver No cracks or breaks Test Method: An 18 in (450 mm) length of the hose filled with ASTM Fuel “C“ shall not crack or show other defects after being conditioned at -40 C for 70 h and bent 180 over a temperature conditioned mandrel 10 times the nominal O.D. of the hose. This flexing shall be accompl
7、ished with 4 s. 3.5 OZONE RATING, Cover 0 (FLTM BP 101-01) 3.6 HIGH TEMPERATURE RESISTANCE No cracks Test Method: A piece of hose bent into a free loop (approximately 10 in (250 mm) diameter) until ends meet shall be aged in an oven at 149 +/- 3 C for 70 h. At the end of the aging period the cover s
8、hall show no signs of cracking when examined under a 7 power glass. ENGINEERING MATERIAL SPECIFICATIONESE-M2D286-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 5 3.7 OVALITY, min 75% Ovality will be expressed as a ratio of the inside minor to major diameter
9、 times 100. 3.8 PHYSICAL CHARACTERISTICS (ASTM D 380, taken from hose when applicable) 3.8.1 Original Properties Tube Cover Tensile Strength, psi 1200(8.3) 1300(9.0) (MPa), min Ultimate Elongation, 200 200 % min Modulus at 100%, 425 (2.9)-850 (5.9) 350 (2.4)-750 (5.2) psi (MPa) Hardness, IRHD 60 - 7
10、5 58 - 70 3.8.2 Heat Aged (ASTM D 573) (Tube-70 h at 125 +/- 2 C, Cover-168 h at 135 +/- 2 C) Tensile Strength -10 to +20 -15 to +30 Change, % Elongation Change, % -55 to +10 -60 to 0 Hardness Change 0 to +25 0 to +25 (Note: Hardness is not to exceed 90 durometer) 3.8.3 Immersion in ASTM Fuel “C“ (7
11、2 h at 22 +/- 2 C, then place in oven for 48 h at 70 +/- 2C, properties after dry out, except when noted) Tensile strength -10 to +25 0 to +50 change, % Elongation Change, % -10 to +15 -35 to +15 Hardness change, 0 to +18 0 to +25 (Note: Hardness is not to exceed 90 durometer) Volume change, % -18 t
12、o 0 -30 to 0 after dry out Volume change after 0 to +44 - fuel “C“, % 3.8.4 Fill 18 in (460 mm) hoses with fuel “C“. Stopper both ends. Test for 72 h at room temperature changing the fuel “C“ every 24 h. Remove fuel “C“ and place hoses in air circulating oven at 125 C for 72 h. Let hoses cool to roo
13、m temperature then bend over a mandrel 10 times O.D. of hose. No cracks. Condition above hose for 5 h at -40 C with mandrel. Bend hose over mandrel at -40 C. No cracks. Condition the above hose in an ozone box per FLTM BP 101-01. No cracks. 3.8.5 Compression Set, % max (22 h at 121 C, Method 50 75 “
14、B“, plied samples) ENGINEERING MATERIAL SPECIFICATIONESE-M2D286-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 5 3.8.6 Adhesion, lb/in (kN/m), min 10 (1.75) (Tube to Cover) 3.9 FLAMMABILITY, cover Self-extinguishing Test Method: Cut 1/4 in (6.4 mm) wide str
15、ips longitudinally from the cover, which have been removed from the hose. A Bunsen burner shall be used to start burning of the strips until approximately 1/2 in (13 mm) of the strip is burning vigorously. Remove the burning strip from the flame and hold it horizontally with the outside facing upwar
16、d. The flame shall be self-extinguishing within 1 min. The average time of at least 6 determinations shall be used. The test shall be conducted in a draft free atmosphere. 3.10 RESISTANCE TO KINKING Test Method: Insert required length of hose on test fixture securing each end with metal clamps. When
17、 installing hose, it shall be bent in the same plane and direction as its free state curvature. Place fixture in an oven at 121 +/- 3 C for 1 h. Remove fixture from oven and within 5 min pass a steel ball of specified diameter through hose installed on fixture. Ball must pass freely. Nominal I.D. Li
18、mits Test Sample Length Ball Diameter (Reference) in (mm) in (mm), min in (mm) 3/16 0.141 (3.58) 9 (225) 0.066 +/- 0.002 0.171 (4.34) (1.68 +/- 0.05) 1/4 0.192 (4.88) 10 (250) 0.094 +/- 0.002 0.266 (6.76) (2.39 +/- 0.05) 5/16 0.272 (6.91) 12 (300) 0.126 +/- 0.002 0.328 (8.33) (3.20 +/- 0.05) 3/8 0.3
19、35 (8.51) 16 (400) 0.156 +/- 0.002 0.390 (9.91) (3.96 +/- 0.05) 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 measu
20、red while sample is on the test fixture. ENGINEERING MATERIAL SPECIFICATIONESE-M2D286-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 4 of 5 3.11 INSTALLATION EFFORT, max 20 lb (89 N) Test must be completed satisfactorily with initial production parts for ISIR ap
21、proval. Parts must be retested whenever any change is made which may affect part installation effort. Test Method: Cut hose to 1.60 +/- 0.10 in (40.6 +/- 2.5 mm) length and immerse one end into 20W oil (ESE-M2C101-C) to approximately 1/4 in (6.4 mm) depth. Immediately install hose on test fixture wi
22、th lubricated end inserted over SAE J962a Style A (tolerance on outside diameter “A“ +/- 0.002) formed tube to an engagement of 3/4 in (19 mm). Test load application shall not exceed 1 minute. Diameter “B“ Diameter “C“ Nominal Hose in +/- 0.003 in +/- 0.003 (Reference) (mm +/- 0.08) (mm +/- 0.08) 3/
23、16 0.141 (3.58) 0.376 (9.55) 1/4 0.210 (5.33) 0.465 (11.81) 5/16 0.272 (6.91) 0.578 (14.68) 3/8 0.335 (8.51) 0.617 (15.67) 3.12 HOSE IDENTIFICATION A colored tracer cord in the reinforcement of the hose may be used for source identification. The color shall be determined between purchasing and the s
24、upplier. The word “gas“ and the coding described below shall appear on the outer cover of the hose in contrasting color and repeated at intervals of 2.25 in (57 mm) or less. Mandrel cured hose may be coded once per part. ENGINEERING MATERIAL SPECIFICATIONESE-M2D286-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 5 of 5 The following format is recommended: Example Date: January 8, 1972
