1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 09 29 N-STATUS No Replacement Named, No known use C. Mracna, NA 2004 10 15 Revised Inserted 3.0; Deleted 3.2.6, 3.3, 3.4 & 4 1976 04 05 Released SM/EQ8062TP Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Pag
2、e 1 of 3 CHLOROPRENE RUBBER SQ-M2D9507-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a chloroprene rubber. 2. APPLICATION This specification was released originally for material used for drive shaft dust boots. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PR
3、ODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 TESTING OF STANDARD SPECIMENS 3.1.1 Original Physical Properties 3.1.1.1 Hardness Durometer 56 - 64 (ASTM D 2240) 3.1.1.2 Tensile Strength, min 1
4、2 N/mm2(ASTM D 412, Die C) 3.1.1.3 Elongation at Break, min 300% (ASTM D 412, Die C) 3.1.1.4 Tensile Stress at 100% Elongation (ASTM D 412, Die C) N/mm22.4 - 3.8 3.1.2 Change after 70 hrs Ageing in Air at 100 +/- 2 C (ASTM D 573) 3.1.2.1 Hardness Durometer A, units 0 to +10 3.1.2.2 Tensile Strength
5、10 to +20% 3.1.2.3 Elongation at Break -30 to +10% 3.1.2.4 Tensile Stress at 100% Elongation -10 to +30% ENGINEERING MATERIAL SPECIFICATIONSQ-M2D9507-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 3.1.3 Change after 70 hrs Ageing in ASTM Oil No. 1 at 100
6、/- 2 C (ASTM D 471) 3.1.3.1 Hardness Durometer A, units 0 to +10 3.1.3.2 Tensile Strength -20 to +30% 3.1.3.3 Elongation at Break -30 to 0% 3.1.3.4 Volume -15 to -5% 3.1.3.5 Tensile Stress at 100% Elongation +20 to +50% 3.1.4 Compression Set after 22 hrs at 100 +/- 2 C (ASTM D 395, Method B), max 3
7、0% 3.1.5 Density Mg/m31.30 - 1.40 (ASTM D 297) The tolerance of density for any supplier shall be +/- 0,02 Mg/m3based on the recorded density of its original approved sample. 3.1.6 Ash Content (FLTM EU-BO 006-02, test temperature 800 +/- 25 C) The ash content shall be in accordance with the initial
8、sample report The tolerance of ash content for any supplier shall be +/- 1% based on the recorded ash content of its original approved sample, e.g. calculated value is 5% allowed tolerance of ash content is 4 - 6%. 3.1.7 Low Temperature Resistance (ASTM D 746, Method B) Must not be brittle after 3 m
9、inutes at -40 C. 3.1.8 Ozone Resistance Rating 0 (FLTM BP 101-01) 3.2 TESTING FINISHED PARTS 3.2.1 Original Physical Properties 3.2.1.1 Hardness I.R.H.D. 55 - 65 (ASTM D 1415, micro tester) 3.2.2 Change after 70 hrs Ageing in Air at 100 +/- 2 C (ASTM D 573) 3.2.2.1 Hardness, units 0 to +10 ENGINEERI
10、NG MATERIAL SPECIFICATIONSQ-M2D9507-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.2.3 Change after 70 hrs Ageing in ASTM Oil No. 1 at 100 +/- 2 C (ASTM D 471) 3.2.3.1 Hardness, units 0 to +10 3.2.3.2 Volume -15 to -5% The weight of specimen for volume c
11、hange determination shall be 3 grams minimum. 3.2.4 Density, Mg/m31.30 - 1.40 (ASTM D 297) The tolerance of density for any supplier shall be +/- 0.02 Mg/m3based on the recorded density of its original approved sample. 3.2.5 Ash Content (FLTM EU-BO 006-02, test temperature 800 +/- 25 C) The ash content shall be in accordance with the initial sample report The tolerance of ash content for any supplier shall be +/- 1% based on the recorded ash content of its original approved sample, e.g calculated value is 5% allowed tolerance of ash content is 4 - 6%.
