1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 08 29 Activated A. Reaume Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 1 of 2 SLEEVE, HIGH TEMPERATURE, ABRASION RESISTANT WSS-M12G91-A 1. SCOPE The material defined by this specification is a heat r
2、esistant sleeve consisting of polyetheretherketone (PEEK) guard filaments and polyphenylene sulfide (PPS) support filaments. The material is designed to provide abrasion protection to hoses and wires. The material can be used continuously in applications up to 200 C or intermittently to 230 C. 2. AP
3、PLICATION This specification was released originally for material used for fuel cross over lines. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2
4、 MONOFILIAMENTS 3.2.1 Melt Temperature, (ASTM D 3418) polyphenylene sulfide 275 - 290 C polyetheretherketone 330 - 340 C 3.2.2 Filament Tensile Strength at Break, min (ASTM D 2256, Condition 1) polyphenylene sulfide 10.2 n polyetheretherketone 22.2 n 3.2.3 Filament Elongation at break, % min (ASTM D
5、 2256, Condition 1) polyphenylene sulfide 15 polyetheretherketone 18 3.2.4 Low Temperature Brittleness Test, min Pass (ASTM D 746, age braided sleeve at 70 C for 4 h then wrap around a mandrel 4 times the sleeve diameter. No break or damage allowed) 3.2.5 Abrasion Resistance, min Pass (SAE ARP 1536A
6、, 2.5 lb. Weight, 15,500 cycles) ENGINEERING MATERIAL SPECIFICATIONWSS-M12G91-APrinted copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 2 of 2 3.2.6 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 200 +/- 2 C. Unaged property values shall be
7、 determined at the time of the aged properties determination) 3.2.6.1 Filament Tensile Strength change at break, max - 25% (Test Method per para 3.3.3) 3.2.6.2 Filament Elongation change at break, max - 25% (Test Method per para 3.3.4) 3.2.7 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air
8、 changes/h, 168 h at 230 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.2.7.1 Filament Tensile Strength change at break, max - 50% (Test Method per para 3.3.3) 3.2.7.2 Filament Elongation change at break, max - 50% (Test Method per para 3.3.4)
9、 3.2.8 Chemical Resistance, max - 30% Soak the filaments in the chemical at the temperature and time prescribed below. At the end of the exposure allow the samples to attain lab conditions then perform tensile testing on new and exposed samples. Report percent change in tensile strength at break, af
10、ter exposure. See ASTM D 471 for fluids and exposure techniques. Use ASTM D 2256 for testing. 3.2.8.1 ASTM Fuel C w/ 10% ethanol, 23 C +/- 2 C 168 hours 3.2.8.2 Brake fluid (Dot 4), 50 C +/- 2 C, 168 hours 3.2.8.3 ASTM Service Fluid 105, 150 C +/- 2 C, 168 hours 3.2.8.4 Engine coolant, 120 C +/- 2 C, 50/50, WSS-M97B51-A1 or equivalent, 168 hours 3.2.8.5 Windshield Washer Solvent, 23 C +/- 2 C, WSB-M8B16-A3 or equivalent, 168 hours 3.3 FLAMMABILITY (SAE J369) Burn Rate, max SE
