1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 02 24 N-STATUS No replacement named L. Sinclair, NA 2006 11 17 Revised Inserted 3.0; Deleted 3.4 & 4 1975 06 20 Released SM/ET0933-TP Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 4 PVC HOSE, REIN
2、FORCED SK-M98D9502-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a dual extruded PVC-hose with an inner polyamide or polyester yarn reinforcement in cross winding. 2. APPLICATION This hose was originally released for use in the head lamp washer unit assembly.
3、 3. REQUIREMENTS Note: The material shall be conditioned for a minimum of 24 h at 23 +/- 2 C and 50 +/- 5% relative humidity prior to test and tested under the same conditions. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Stand
4、ard Requirements For Production Materials (WSS-M99P1111-A). 3.1 FINISHED PART REQUIREMENTS 3.1.1 Color As specified on Engineering drawing 3.1.2 Dimensions As specified on Engineering drawing 3.1.3 Surface Free of blisters and voids. 3.1.4 Water Absorption, max 0.3% (ASTM D 570, 24 h immersion perio
5、d at 23 +/- 2 C) 3.1.5 Heat Resistance After test, the finished part shall not show any evidence of distortion, cracks or other surface failures. Test Method: Place a section of hose approx. 400 mm in length on a glass plate and expose in a mechanical convection oven for 7 days at 90 +/- 2 C. Examin
6、e after cooling down to room temperature. Use this hose for burst pressure (clause 3.1.16). ENGINEERING MATERIAL SPECIFICATIONSK-M98D9502-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.1.6 Cold Flexibility No breaks, no cracks (FLTM BN 102-01, at -40 +/-
7、 1 C) Test Method: Cut specimen size 10 x 250 mm, diameter of mandrel shall be 10 times of material thickness. Specimen shall be bent with inside facing mandrel. Examination shall be done from a distance of 300 mm. 3.1.7 Environmental Cycling After test, the finished part shall not show any cracks o
8、r other surface failures. Test Method: A section of hose approx. 500 mm in length shall be filled with Ford Motor Company windshield washer solution diluted to a concentration of 50% and closed on both ends. The prepared tube shall be subjected 3 times to the following environmental cycle. After cyc
9、ling, tube shall be cooled down to room temperature and then bent (still filled with test solution) around a mandrel 5 times of outer diameter of tube. Cycle: 3 h at 100 +/- 2 C 5 h at 23 +/- 2 C 16 h at -40 +/- 1 C 3.1.8 Resistance to Isopropyl Alcohol After test, the finished part shall not show a
10、ny cracks or other surface failures. Test Method: A section of hose approx. 500 mm in length prepared as described below shall be stored at 80 +/- 1 C for 70 hours and subsequently bent around a mandrel 5 times of the outer diameter of hose. The hose shall be bent and examined only on the area which
11、 was in contact with the test solution during the whole test. Preparation of Test Specimen: The hose shall be filled with a 50:50 solution of isopropyl alcohol and water. One end of the hose shall be closed and the other connected with an open expansion container. Take care that during the test the
12、closed end of the hose is at a deeper level than the bottom of the expansion container. The expansion container shall be located outside of test chamber during the heat aging period. 3.1.9 Resistance to Petrol After test, the finished parts shall not show any cracks or other surface failures. Test M
13、ethod: Place a separate section of hose for 3 hours in fuel A and B according to ASTM D 471 at 23 +/- 2 C. 30 minutes after removal from test solution, bend specimen 180 upon itself and examine in bend condition. ENGINEERING MATERIAL SPECIFICATIONSK-M98D9502-APrinted copies are uncontrolled Copyrigh
14、t 2010, Ford Global Technologies, LLC Page 3 of 4 3.1.10 Resistance to Oil After test, the finished part shall not show any cracks or other surface failures. Test Method: Place a separate section of hose for 24 hours in ASTM D Oil No. 1 and ASTM D Oil No. 3 according to ASTM D 471 at 23 +/- 2 C. Rem
15、ove sections of hose from the solution and rinse with warm water. Bend specimen 180 upon itself and examine in bend condition. 3.1.11 Resistance to Engine Cleaner After test, the finished part shall not show any cracks or other surface failures. Test Method: Place a section of hose for 30 minutes in
16、 the engine cleaner according to Ford Code 1442008 at 23 +/- 2 C. Remove section of hose from test solution and rinse with warm water. Bend specimen 180 upon itself and examine in bend condition. 3.1.12 Resistance to Brake Fluid After test, the finished part shall not show any cracks or other surfac
17、e failures. Test Method: Place a section of hose for 2 hours in a solution of brake fluid according to Ford Specification ESEA-M6C1001 at 23 +/- 2 C. Remove section of hose from the test solution and rinse with warm water. Bend specimen 180 upon itself and examine in bend condition. Note: This test
18、is only applicable if required on Engineering drawing. 3.1.13 Resistance to Waxing and Dewaxing Compounds (FLTM BO 155-01) After test, the finished part shall not show any cracks or other surface failures. Bend specimen 180 upon itself and examine in bend condition. Note: This test is only applicabl
19、e if required on Engineering drawing. 3.1.14 Resistance to Battery Acid After test, the finished part shall not show any cracks or other surface failures. Test Method: Place a section of hose for 24 h in sulphuric acid solution with a density of 1.28 Mg/m3at 23 +/- 2 C. Remove section of hose from t
20、he test solution and rinse with water. Bend specimen 180 upon itself and examine in bend condition. Note: This test is only applicable if required on Engineering drawing. ENGINEERING MATERIAL SPECIFICATIONSK-M98D9502-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page
21、 4 of 4 3.1.15 Ozon Resistance Rating “0“ (FLTM BP 101-01, 72 h at 20% elongation. Take samples cut out of the longitudinal direction with a max width of 13 mm) Note: This test is only applicable if required on Engineering drawing. 3.1.16 Burst Pressure (ASTM D 1599) a) Original, min1.0 N/mm2or as s
22、pecified on Engineering drawing b) After Heat Ageing, max -10% change of original value Heat Ageing according to clause 3.1.5. 3.2 SPECIFIC REQUIREMENTS Specific requirements for the finished part, if required, shall be as specified on Engineering Drawing. 3.3 REQUIREMENTS OF BASE MATERIAL 3.3.1 Int
23、erior Tube Material according to specification S-M4D4601-A, shore hardness A: 80 +/- 5. 3.3.2 Exterior Tube Material according to specification S-M4D4601-A, shore hardness A: 80 +/- 5. 3.3.3 Textile Reinforcement Polyamide or polyester thread armouring. Construction of the thread armouring according to Master Sample.
