1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Ver. 3 2008 10 16 N-STATUS Replaced by WSS-M13P12-A L. Schmalz, FNA 2004 04 30 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.6 & 4 deleted 1995 04 18 Activated J. Showalter Printed copies are uncontrolled Copyright 2008, Ford Global Technol
2、ogies, LLC Page 1 of 5 GREASE, POLYUREA, PTFE, LOW TEMPERATURE, NLGI 2 WSS-M1C252-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a grease consisting of white mineral oil with polyurea thickener, and PTFE. Temperature range is -50 to + 350 F. 2. APPLICATION Thi
3、s specification was released originally for grease used to lubricate power seat mechanisms and recliners, gear boxes, seat tracks and rails and flex cables. The following note will be inserted when applicable: Note: This grease shall be formulated so that it will not stain or soften painted exterior
4、 or interior automotive finishes, when evaluated according to FLTM BJ 126-01. 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). 3.1.1 Initial Qualifica
5、tions The supplier must furnish to the affected Materials Engineering activity a completed and certified copy of the attached Supplement A and test reports demonstrating the capability of the process for the listed critical properties. 3.1.2 Ongoing Verification Plan In addition to the control plan,
6、 the supplier and affected Materials Engineering activity shall establish a mutually agreed upon ongoing product verification plan which will be listed on Supplement B. 3.4 CONSISTENCY Material shall be a smooth homogenous product free from abrasive particles, it shall be consistent in color and tex
7、ture, and free from objectionable odors during normal storage. It shall be suitable for the intended application. 3.5 FUNCTIONAL APPROVAL Materials being evaluated for initial approval may be subjected to a functional trial. Functional trial results shall be evaluated by the responsible Systems Engi
8、neering and Materials Engineering activities prior to material approval and release. ENGINEERING MATERIAL SPECIFICATIONWSS-M1C252-APrinted copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 5 5. GENERAL INFORMATION The information given below is provided for clarificatio
9、n and assistance in meeting the requirements of this specification. 5.1 TYPICAL PROPERTIES The information shown is to provide data on products which have been qualified to this specification. The values shown do not constitute part of the requirements for initial qualification. 5.1.1 Penetration (A
10、STM D 217) After 60 strokes 284 After 100,000 strokes, max, % change 15 5.1.2 Water washout, max 5 (ASTM D 1264) 5.1.3 Dropping point, min 260 C (ASTM D 2265) 5.1.4 Oxidation stability, max 35 kPa (ASTM D 942, 100 h) 5.1.5 Oil separation 2% loss (ASTM D 1742) 5.1.6 Timken, OK load, min 20.4 kg (ASTM
11、 D 2509) 5.1.7 Four ball wear, max 0.6 (ASTM D 2266) 5.2 SUPPLEMENT C This is to be used for additional information required for initial qualification. ENGINEERING MATERIAL SPECIFICATIONWSS-M1C252-APrinted copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 5 Supplement A
12、 INITIAL QUALIFICATION Supplier_ Date_ Product Name_ NLGI Grade_ Product Code_ Batch No._ Manufacturing Plant Location(s)_ Physical/Chemical/Performance Properties Test Results Mfg. Limits (Mean, Std.Dev., (of 99.994% Base Oil Sample Size) of Production) Viscosity at 100 C mm2/s ASTM D 445 _ _ Visco
13、sity at 40 C mm2/s ASTM D 445 _ _ Viscosity at -40 C mm2/s ASTM D 2983 _ _ Viscosity Index ASTM D 2270 _ _ Flash Point, C ASTM D 92 _ _ Pour Point, C ASTM D 97 _ _ Specific Gravity ASTM D 1298 _ _ ASTM D 4052 _ _ Grease Penetration mm/10 ASTM D 217 _ _ Worked after 60 strokes _ _ Worked after 100,00
14、0 strokes _ _ Moisture Content % ASTM D 95 _ _ Soap Content % ASTM D 128 _ _ Water Washout at 80 C ASTM D 1264 _ _ Dropping Point, C ASTM D 2265 _ _ Oxidation Stability ASTM D 942 _ _ Pressure Drop after 50 hours Oil Separation ASTM D 1742 _ _ Copper Strip Corrosion ASTM D 130 _ _ Specific Gravity A
15、STM D 4052 _ _ Four Ball 0K Load ASTM D 2266 _ _ Corrosion IP 220 (DIN 51802) _ _ Refractive Index ASTM D 1218 _ _ Evaporation, 22 h, 100 C ASTM D 972 _ _ Others (Elementals, etc.) _ _ Signature_ Title_ ENGINEERING MATERIAL SPECIFICATIONWSS-M1C252-APrinted copies are uncontrolled Copyright 2008, For
16、d Global Technologies, LLC Page 4 of 5 Supplement B ONGOING PRODUCT VERIFICATION PLAN Supplier_ Date_ Product Name_ NLGI Grade_ Product Code_ Batch No._ Manufacturing Plant Location(s)_ Approved Physical/Chemical/Performance Properties Manufacturing Sample Size/ Limits Frequency Penetration after AS
17、TM D 217 _ _ 60 strokes _ _ 100,000 strokes _ _ Four Ball 0K load ASTM D 2266 _ _ Timken, 0K load ASTM D 2509 _ _ Wheel Bearing Leakage ASTM D 4290 _ _ Oil Separation % ASTM D 1742 _ _ Dropping Point ASTM D 566 _ _ Oxidation Stability ASTM D 942 _ _ Pressure Drop after 1,000 h Water Washout at 38 C
18、ASTM D 1264 At 38 C _ _ At 80 C _ _ Corrosion IP 220 (DIN 51802) _ _ Low Temperature Properties Low Temperature Torque ASTM D 4693 (IP 186) At -40 C Start _ _ or Run _ _ Flow Pressure at -20 C DIN 51805 _ _ Remarks_ Signature_ Title_ Material Engineering Concurrence_ ENGINEERING MATERIAL SPECIFICATI
19、ONWSS-M1C252-APrinted copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 5 of 5 Supplement C Supplier_ Date_ Product Name_ NLGI Grade_ Product Code_ Manufacturing Plant Location(s)_ BASE OIL Manufacturing Limits Nominal Viscosity Range, mm2/s Type Vol. % 100 C 40 C A _ _ _ _
20、B _ _ _ _ C _ _ _ _ D _ _ _ _ Thickener Filler/Structure Modifier/Solid Lubricant Type/Function Supplier Name Code Description A _ _ _ _ B _ _ _ _ C _ _ _ _ D _ _ _ _ Additives Carrier Additive Type/ Supplier /Type in Final Function Name Code Description % Product % A _ _ _ B _ _ _ C _ _ _ D _ _ _ Signature_ Title_
