1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 25 N-STATUS No Replacement Named C. Mracna, NA 2004 09 10 Revised 3.0 Inserted; 3.13, 3.14, 4 Deleted 1984 11 09 Released CE3PRD863100E130 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 3 HOSE,
2、REINFORCED RUBBER - AIR LINE ESE-M2D343-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is reinforced synthetic rubber hose with improved oil and gasoline resistance. 2. APPLICATION This specification was released originally for material used where good ozone alon
3、g with moderate heat, oil, and gasoline resistance are required, such as in the engine air intake lines. 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-
4、A). 3.1 CONSTRUCTION The hose shall consist of a tube and cover of a chlorinated polyethylene or chlorosulfonated polyethylene rubber, reinforced with one or more plies of braided, knitted, spiral or woven rayon fabric. All tests shall be conducted on the part when applicable. 3.2 ORIGINAL PROPERTIE
5、S Tube Cover Hardness, Durometer A 62 - 72 62 - 72 (ASTM D 2240) Tensile Strength, MPa, min 13.8 10.3 (ASTM D 412) Elongation, % min 200 190 3.3 PROPERTIES AFTER HEAT AGING (ASTM D 865, 168 h at 135 +/- 2 C) Hardness, Durometer A Change +20 +25 (Note: Hardness is not to exceed 85 durometer) Tensile
6、Strength Change, % max -10 to +10 -10 to +12 Elongation Change, % max -60 -68 ENGINEERING MATERIAL SPECIFICATIONESE-M2D343-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 Tube Cover 3.4 PROPERTIES AFTER IMMERSION IN ASTM FUEL B (ASTM D 471, 48 h at 23 +/- 2
7、 C) Hardness, Durometer A Change -15 -20 Tensile Strength Change, % max -60 -60 Elongation Change, % max -50 -50 Volume Change, % max +60 +60 3.5 PROPERTIES AFTER IMMERSION IN ASTM OIL #3 (ASTM D 471, 168 h at 135 +/- 2 C) Hardness, Durometer A Change -18 -25 Tensile Strength Change, % max -55 -55 E
8、longation Change, % max -50 -25 Volume Change, % max -52 -52 3.6 COMPRESSION SET, % max 60% 88% (ASTM 395, Method “B“, 22 h at 121 +/- 2 C) 3.7 ADHESION, Original Properties, min (FLTM BP 008-03) Tube to Ply 53.00 N Cover to Ply 62.30 N 3.8 COLD FLEXIBILITY, Tube and Cover No cracks, checks or break
9、s (SAE J 20e, 5 h at -40 +/- 2 C) 3.9 OZONE RATING, Tube and Cover Must meet ESB-M9P1-A (FLTM BP 101-01, 96 h, 20% elongation) Ozone resistance and compression set readings must be taken from the same hose. 3.10 BURST STRENGTH, min (FLTM BP 008-04, room temperature) 5/8 in I.D. and smaller 1.38 MPa
10、41/64 to 3/4 in I.D. 1.03 MPa 49/64 to 1 in I.D. 0.69 MPa 1-1/64 to 1-15/64 in I.D. 0.52 MPa 1-1/4 in I.D. and larger 0.35 MPa Unless otherwise specified on engineering drawing. ENGINEERING MATERIAL SPECIFICATIONESE-M2D343-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LL
11、C Page 3 of 3 3.11 KINK RESISTANCE (For 1 in I.D. and smaller) Applies to formed and straight hoses containing straight lengths equal to or greater than the test lengths shown below. The hose sample shall be stabilized at room temperature (23 +/- 2 C) before start of test. The test fixture shall con
12、sist of 25 mm flat plate with two holes for each size hose. Diameters and center distances between holes are tabulated below. With hose bent through 180 and inserted in the fixture, with each end of the test length flush with the opposite side, the sample shall show no visible evidence of buckling a
13、nd shall pass a steel ball freely through the sample hose. Hose Size Test Length Center Distance Hole Diameter Ball Diameter 1 in I.D. 450 mm 8 x I.D. O.D. + 1.5 mm 0.5 x I.D. 1 in I.D. 300 mm 8 x I.D. O.D. + 1.5 mm 0.5 x I.D. 3.12 VACUUM COLLAPSE, max 35% (Applicable for 1 in I.D. and smaller, for I.D. 1 in, see part print.) Test Method: Subject the hose to a vacuum of 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.
