1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 11 18 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.4, 3.20 & 4 2001 03 05 Revised Revised Para. 3.9 Note & updated B Hennessey 1988 04 11 Released WSD-M2D378-A1 & 382-A1 SM/ER 3655 TC Printed copies are uncontrolled Copyright 2004, Ford Glob
2、al Technologies, LLC Page 1 of 5 THERMOPLASTIC ELASTOMER (TEO) WSD-M2D378-A1 POLYOLEFIN, EPDM RUBBER MODIFIED ENGINE COOLANT AND MODERATE HEAT RESISTANT - 60 DUROMETER A HARDNESS THERMOPLASTIC ELASTOMER (TEO) WSD-M2D379-A1 POLYOLEFIN, EPDM RUBBER MODIFIED ENGINE COOLANT AND MODERATE HEAT RESISTANT -
3、 68 DUROMETER A HARDNESS THERMOPLASTIC ELASTOMER (TEO) WSD-M2D380-A1 POLYOLEFIN, EPDM RUBBER MODIFIED ENGINE COOLANT AND MODERATE HEAT RESISTANT - 76 DUROMETER A HARDNESS THERMOPLASTIC ELASTOMER (TEO) WSD-M2D381-A1 POLYOLEFIN, EPDM RUBBER MODIFIED ENGINE COOLANT AND MODERATE HEAT RESISTANT - 82 DURO
4、METER A HARDNESS THERMOPLASTIC ELASTOMER (TEO) WSD-M2D382-A1 POLYOLEFIN, EPDM RUBBER MODIFIED ENGINE COOLANT AND MODERATE HEAT RESISTANT - 89 DUROMETER A HARDNESS 1. SCOPE The materials defined by these specifications are thermoplastic elastomers of nominal instantaneous Durometer A hardnesses rangi
5、ng from 60 to 89 having good long term resistance to heat and engine coolant at temperatures up to 125 C. The harder materials also have moderate resistance to oil. Resistance to other fluids cannot be assumed without further testing. Being thermoplastic, the material will soften and creep at temper
6、atures exceeding 165 C. 2. APPLICATION These specifications were released originally for materials used for general engine compartment components such as grommets, gaiters, seals, sleeving and tubing. The materials can be processed by conventional thermoplastics molding techniques such as injection
7、molding, extrusion and blow-molding. 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). ENGINEERING MATERIAL SPECIFICATIONWSD-M2D378-A1 WSD-M2D379-A1 WS
8、D-M2D380-A1 WSD-M2D381-A1 WSD-M2D382-A1 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 5 3.3 DYNAMIC MECHANICAL ANALYSIS Ford Motor Company, at its option, may establish shear modulus/damping vs. temperature curves plotted for -50 to +150 C temperature range
9、for material/parts supplied to this specification. The shear modulus and damping curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce shear modulus and damping curves that correspond
10、 to the reference standard when tested under the same conditions. 3.5 PREPARATION OF TEST SPECIMENS Unless otherwise specified, all test shall be conducted on specimens die cut from injection molded plaques 150 x 100 x 2.0 +/- 0.2 mm. The plaques shall be molded according to ISO 294 and film gated a
11、long the upper 100 mm edge, and preceded by a 0.8 mm diameter pin gate. No annealing allowed, unless specified otherwise. 3.6 DENSITY, +/- 0.05 g/cm3(ISO 1183, Method A /ASTM D 792, Method A1) 378-A1 379-A1 380-A1 381-A1 382-A1 0.97 0.97 0.97 0.97 0.97 3.7 HARDNESS, INTERNATIONAL (ISO 48/ASTM D 1415
12、) 60 - 70 67 - 77 78 - 88 84 - 94 - 3.8 HARDNESS, DUROMETER A 54 - 65 63 - 72 71 - 81 76 - 88 82 - 94 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen) 3.9 TENSILE STRENGTH, MPa, min. 2.3 3.6 4.9 7.1 7.6 (ISO R 527, type 2/ASTM D 412, Die C, 500 mm/min test speed. Measured Parallel to Flow) 3.
13、9.1 Elongation at Break, % min 100 100 110 250 250 (Test per para 3.9) 3.10 MODULUS AT 100% ELONGATION, min (Test per para 3.9) 2.2 2.9 3.5 5.5 5.6 ENGINEERING MATERIAL SPECIFICATIONWSD-M2D378-A1 WSD-M2D379-A1 WSD-M2D380-A1 WSD-M2D381-A1 WSD-M2D382-A1 Printed copies are uncontrolled Copyright 2004,
14、Ford Global Technologies, LLC Page 3 of 5 378-A1 379-A1 380-A1 381-A1 382-A1 3.11 TEAR STRENGTH, kN/m, min (ISO 34, Method B, procedure A/ ASTM D 624, Die C) 3.11.1 Parallel to Flow 6 15 18 20 45 3.11.2 Perpendicular to Flow 15 25 25 35 45 3.12 COMPRESSION SET, % max (ISO 815, Large Type plied speci
15、men/ASTM D 395, Method B, Type 1 plied specimen) 3.12.1 22 h at 70 +/- 1 C 35 40 45 45 55 3.12.2 70 h at 125 +/- 2 C 55 60 70 70 80 3.13 BRITTLENESS POINT, C max -60 -60 -55 -50 -50 (ISO 812, Type B specimen/ ASTM D 2137, Method A) 3.14 OZONE RESISTANCE, Rating, max (FLTM BP 101-01, at 20% 0 0 0 0 0
16、 elongation) 3.15 HEAT AGING (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 125 +/- 2 C Unaged property values shall be determined at the time of the aged properties determination.) Hardness Change , max +5 +5 +5 +5 +5 Tensile Strength Change, % max +/- 30 +/- 30 +/- 25 +/- 25 +/- 20 Elong
17、ation Change, % max +/- 35 +/- 35 +/- 40 +/- 40 +/- 40 3.16 IMMERSION IN OIL NO. 1 (ISO 1817/ASTM D 471, 168 h at 125 +/- 2 C) Hardness Change, max -25 -25 -25 -30 -30 Tensile Strength Change, % max -40 -35 -35 -30 -25 Elongation Change, % max -70 -65 -60 -55 -50 Volume Change, % max +65 +55 +45 +35
18、 30 ENGINEERING MATERIAL SPECIFICATIONWSD-M2D378-A1 WSD-M2D379-A1 WSD-M2D380-A1 WSD-M2D381-A1 WSD-M2D382-A1 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 5 378-A1 379-A1 380-A1 381-A1 382-A1 3.17 IMMERSION IN OIL NO. 3 (ISO 1817/ASTM D 471, 168 h at 125 +/-
19、2 C) Hardness Change, max -30 -30 -30 -25 -25 Tensile Strength Change, % max -50 -50 -50 -50 -45 Elongation Change, % max -70 -70 -70 -70 -65 Volume Change, % max +120 +105 +90 +85 +80 3.18 IMMERSION IN CURRENTLY RELEASED PRODUCTION ENGINE COOLANT 50/50% V/V/ MIXTURE WITH WATER (FLTM BO 130-01, 1000
20、 h at 125 +/- 2 C, see Para 5.1) Hardness Change, max +/- 10 +/- 10 +/- 10 +/- 10 +/- 10 Tensile Strength Change, % max +/- 20 +/- 20 +/- 20 +/- 15 +/- 15 Elongation Change, % max -50 -50 -55 -60 -75 Volume Change, % max 0/+15 0/+15 0/+10 0/+10 0/+10 3.19 FLAMMABILITY (ISO 3795) Burn Rate, max 100 m
21、m/minute The specimen size required for material approval is 355 x 100 x 1.5 +/- 0.1 mm with a smooth surface 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 For information on currently approved e
22、ngine coolants for use in this specification contact: Materials Technology Centre, GB 15/GM Fluids Materials Section Product Development Europe Coolants/Greases Dunton Technical Centre Engine Engineering Laindon, Basildon PO BOX 2053 Essex SS15 6EE, England 21500 Oakwood Boulevard Dearborn, MI 48121
23、 USA ENGINEERING MATERIAL SPECIFICATIONWSD-M2D378-A1 WSD-M2D379-A1 WSD-M2D380-A1 WSD-M2D381-A1 WSD-M2D382-A1 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 5 of 5 Materials Engineering Product Engineering Office Ford Motor Co. of Australia Ltd Princes Highway, No
24、rlane Victoria 3214, Australia 378-A1 379-A1 380-A1 381-A1 382-A1 5.2 COEFFICIENT OF LINEAR THERMAL EXPANSION, -6/C 8.2 8.2 8.2 8.2 8.2 5.3 MOLD SHRINKAGE (ISO 2577, 150 x 100 x 2.0 +/- 0.2 mm injection molded specimen) 5.3.1 Molding Shrinkage After 48 h at 23 +/- 2 C, mm/mm . Length 0.032 0.027 0.0
25、24 0.024 0.023 . Width 0.025 0.023 0.022 0.022 0.022 5.3.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 110 +/- 2 C . Length 0.008 0.008 0.008 0.008 0.008 . Width 0.009 0.008 0.007 0.007 0.007 5.4 HARDNESS, DUROMETER A 51 - 62 61 - 70 69 - 79 74 - 86 81 - 93 (ISO 868/ASTM D 2240, 5 second delay, plied-up specimen) 5.4 RECYCLING CODE TEO
