1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 08 15 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.11 & 4 1991 09 30 Revised C01089489 Not To Be Used For New Design Was 9 pages 1985 12 18 Released SM/ER2847TC Printed copies are uncontrolled Copyright 2006, Ford Global Technologies,
2、LLC Page 1 of 6 DRIVE BELT, TOOTHED, DOUBLE FABRIC ESD-M96D5-A HEAVY DUTY NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the basic physical requirements for a toothed drive belt based on polychloroprene rubber with a double layer of polyamide facing fabric and glass fiber tension
3、cords. The belt is suitable for use where continuous service temperatures of up to 100 C are experienced but excessive oil contact should be avoided. 2. APPLICATION This timing belt is used to drive components such as camshaft, injector pump and/or auxiliary engine parts. 3. REQUIREMENTS 3.0 STANDAR
4、D REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 SHEAR MODULUS (ISO 4663 METHOD A) FORD MOTOR COMPANY, at its option, may determine the Shear Modulus of the material supplie
5、d to this specification over the temperature range -50 to +150 C. The resulting curve shall constitute the reference standard and shall be kept by the designated Materials Laboratory. All subsequent samples shall correspond to the reference sample when tested under the same conditions. 3.5 PERFORMAN
6、CE REQUIREMENTS The belt shall conform to the appropriate Engineering Specification as required by the relevant Engineering Drawing. 3.6 CONSTRUCTION Note that fabric constructions are for unproofed textile. Samples taken from actual belts will have changed properties due to stretch in manufacture.
7、3.7 POLYCHLOROPRENE RUBBER 3.7.2 TESTING OF STANDARD TEST SPECIMENS All tests are to be carried out on sheet samples (150 mm x 150 mm min. x 1.9 mm - 2.1 mm), molded from the same material and with an equivalent state of cure as that of the finished part. ENGINEERING MATERIAL SPECIFICATION ESD-M96D5
8、-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 6 3.7.2.1 ORIGINAL PHYSICAL PROPERTIES 3.7.2.1.1 Hardness IRHD 65 - 75 (ASTM D 1415 2 mm samples plied up) 3.7.2.1.2 Tensile Strength Min 14 N/mm2 (ASTM D 412 Die C) 3.7.2.1.3 Elongation at Break Min 300% (AST
9、M D 412 Die C) 3.7.2.2 CHANGE AFTER 70 HOURS AGEING IN AIR AT 100 C +/- 2 C (ASTM D 573) 3.7.2.2.1 Hardness IRHD 0 to +12 units 3.7.2.2.2 Tensile Strength -10% to +10% 3.7.2.2.3 Elongation at -40% to Break -10% 3.7.2.3 CHANGE AFTER 70 HOURS AGEING IN ASTM OIL NO.1 AT 100 C +/- 2 C ASTM D 471) 3.7.2.
10、3.1 Hardness IRHD -10 to + 5 units 3.7.2.3.2 Tensile Strength -10% to +10% 3.7.2.3.3 Elongation at Break -35% to 0 3.7.2.3.4 Volume +2% to +8% 3.7.2.4 COMPRESSION SET, MAX 60% (ASTM D 395, METHOD B, TEST SPECIMEN TYPE 1, 22 HOURS AT 100 C +/- 2 C 2 mm sheets plied up) 3.7.2.5 OZONE RESISTANCE RATING
11、 MAX O (FLTM BP 101-01) 3.7.2.6 LOW TEMPERATURE RESISTANCE (ASTM D 746, METHOD B) Must not be brittle after 3 minutes at -30 C ENGINEERING MATERIAL SPECIFICATION ESD-M96D5-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 6 3.7.2.7 DENSITY As initial (ASTM D 2
12、97) approval sample +/- 0.02 Mg/m3 3.7.2.8 ASH CONTENT As initial (ISO R 247 Method C) approval sample +/- (1.0%) 3.8 TENSION CORDS Glass fiber, multifilament spun with S twist and Z twist alternated. 3.9 FACING FABRIC (Unproofed) Two layers of woven polyamide material bonded together, the outer fab
13、ric being of heavier construction. 3.9.1 WEIGHT (FLTM BN 106-01) Face (outer) 230 g/m2 Inner 125 g/m2 3.9.2 COMPOSITION (WARP AND WEFT) 100% Polyamide (ASTM D 276-62 T) 6 or 6.6 3.9.3 CONSTRUCTION 3.9.3.1 FACING FABRIC Warp Ends/100mm 400 Nominal dTex 233 Weft Picks/100mm 280 min dTex 111 x 2 3.9.3.
14、2 INNER FABRIC (ASTM D 1910 Method 27-39) Warp Ends/100mm 500 Nominal dTex 50 Weft Picks/100mm 270 min dTex 67 x 2 3.9.4 TYPE OF WEAVE 3.9.4.1 FACING FABRIC Warp Armature “BATAVIA“ x 4 3.9.4.2 INNER FABRIC Warp Armature “RASOTURCO“ x 4 (Filaments of warp x 2) 3.9.5 TENSILE STRENGTH 3.9.5.1 OUTER War
15、p min 1800N Weft min 800N 3.9.5.2 INNER Warp min 800N Weft min 500N (ASTM D 1682 GT, Test Speed 300 mm/min) ENGINEERING MATERIAL SPECIFICATION ESD-M96D5-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 6 3.10 REQUIREMENTS ON ACTUAL PARTS 3.10.1 HARDNESS IRHD
16、Tooth 65 - 75 Back 65 - 75 3.10.2 BREAKING LOADS FOR BELTS 19,75MM IN WIDTH (TOLERANCES AS STATED ON ENGINEERING DRAWING) TEST METHOD Tests to be conducted on a complete belt by pulling at 25mm/min between two 114 mm diameter cylinders mounted with teeth facing outwards. One of the cylinders shall t
17、urn freely to equalise stress in the belt. 3.10.2.1 Original, min 19.0 KN 3.10.2.2 After 70 hours Ageing in Air at 100 +/- 2 C, min 19.0 KN 3.10.2.3 After 70 hours Ageing in ASTM Oil NO.1 at 100 +/- 2 C, min 17.5 KN 3.10.2.4 After 70 hours Ageing in 5% Sodium Chloride Solution at 60 +/- 2 C, min 16.
18、0 KN 3.10.3 FABRIC ADHESION TEST METHOD The cover fabrics shall be separated together from the belt at 50 mm/min on a tensile machine giving a continuous autographic load record. 3.10.3.1 ORIGINAL SAMPLE A) All peak loads shall not be less than 65 N/cm width. B) All lowest valley loads shall not be
19、less than 26 N/cm width. 3.10.3.2 AFTER HEAT AGEING (70 hours at 100 +/- 2 C) A) All peak loads shall not be less than 65 N/cm width. B) All lowest valley loads shall not be less than 26 N/cm width. ENGINEERING MATERIAL SPECIFICATION ESD-M96D5-A Printed copies are uncontrolled Copyright 2006, Ford G
20、lobal Technologies, LLC Page 5 of 6 3.10.3.3 AFTER AGEING IN ASTM NO.1 OIL (24 hours at 100 +/- 2 C) A) All peak loads shall not be less than 65 N/cm width. B) All lowest valley loads shall not be less than 26 N/cm width. 3.10.3.4 SEPARATING ONE LAYER FROM ANOTHER (ORIGINAL) A) All peak loads shall
21、not be less than 45 N/cm width. B) All lowest valley loads shall not be less than 15 N/cm width. 3.10.3.5 SEPARATING LAYERS AFTER HEAT AGEING (70 HOURS AT 100 +/- 2 C) A) All peak loads shall not be less than 45 N/cm width. B) All lowest valley loads shall not be less than 15 N/cm width. 3.10.3.6 SE
22、PARATING LAYERS AFTER OIL AGEING ASTM NO.1 -(24 HOURS AT 70 C) A) All peak loads shall not be less than 45 N/cm width. B) All lowest valley loads shall not be less than 15 N/cm width. 3.10.4 HEAT AGEING TEST No cracks (ASTM D 573 70 h at 100 +/- 2 C) TEST METHOD After ageing the belt shall not show
23、any visible cracks when bent around a 25 mm mandrel, the teeth facing inwards and outwards respectively. (Separate samples). 3.10.5 OZONE RESISTANCE Rating 0 max (FLTM BP 101-01) TEST METHOD Test specimen to comprise a section of belt (flat surface outward) bent around a 50 mm mandrel. 3.10.6 LOW TE
24、MPERATURE FLEXIBILITY 5 h at -40 C - no cracks. ENGINEERING MATERIAL SPECIFICATION ESD-M96D5-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 6 of 6 TEST METHOD After conditioning, the belt shall not show any cracks when bent around a temperature conditioned 25 mm
25、 mandrel. The teeth facing inwards and outwards respectively. (Separate samples). 3.10.7 OIL RESISTANCE 70 h at 100 +/- 2 C in ASTM No.1 Oil) There shall be no splitting, delamination or other visible deterioration after this test or after bending subsequently around a 25 mm mandrel, the teeth facin
26、g inwards and outwards respectively (Separate samples). 3.10.8 TOOTH SHEAR RESISTANCE TEST METHOD FLTM EU BP 11-1 (Use HTD Pulley with 19 teeth and OD 56 mm.) SHEAR LOADS 3.10.8.1 ORIGINAL SAMPLE 0.9 kN/cm width min 3.10.8.2 AFTER HEAT AGEING 0.9 kN/cm width min (70 h at 100 +/- 2 C) 3.10.8.3 AFTER AGEING IN ASTM NO.1 OIL 0,8 kN/cm width min (24 h at 100 +/- 2 C) Belt to be wiped dry with cloth before fixing to rig.
