1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Rev 02010 02 12 Activated C.Ved, NA Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 2 ADDITIVE, AUTOMATIC TRANSMISSION, ANTI-SQUAWK FRICTION MODIFIER WSS-M99C132-A1 1. SCOPE The materials defined by this
2、 specification are the basic components for the automatic transmission friction modifier for anti squawk (NVH) phenomenon. 2. APPLICATION These specifications were originally released for shifting clutch NVH issue in automatic transmissions. This material needs to added to WSS-M2C938-A (Type A) ATF
3、in 0.95ml / 1.0 lit ratio for optimized performance. Adding this material will result in reduction of static coefficient of friction by approx. 5-10% (depending on friction material used). This material will not have impact on dynamic coefficient of friction. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENT
4、S FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 REQUIREMENTS 3.2.1 Viscosity, cSt at 100 C 3.90 min (ASTM D445) 3.2.2 Density, g/cc at 15 C 0.80 min (ASTM D 1475) 3.2.3 Flash Point 180
5、C min (Pensky-Martens Closed Cup Method) 3.2.4 Squawk Test (for product mixed with new WSS-M2C938-A ATF) (GK test rig, BW 6510, D530-31 friction materials) 0.6N/mm2, pressure GK Rig Machine Setup Parameters Apply Pressure: 4200 kPa/sec. Sampling Frequency: 500 Hz (1000 Hz with 500 Hz filter) Fill Vo
6、lume: 700 mL +/- 5 mL ENGINEERING MATERIAL SPECIFICATIONWSS-M99C132-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 TEST DESCRIPTION Sliding Speed (m/s) Speed (rpm) Pressures (kPa) Temp F0.005 10.011 20.027 50.055 100.110 200.165 300.220 400.275 500.412 7
7、50.549 1000.824 1501.098 2001.373 2501.647 300120Test Conditions - Discrete Data Points40241 90369974. QUALITY CONTROL/SUPPLIER TESTING Annual validation required on production sample. Validation is to be completed by the first week of the fifth month prior to a typical Job 1 date (Approximately 2 months prior to Job 1). Supplier in-house friction test results are acceptable after concurrence with the Product engineering design & release / materials section.
