1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 21 N-STATUS No Replacement Named C. Mracna, NA 2004 07 15 Revised Para 3.0 inserted; para 3.10, 3.13 & 4 deleted 1981 11 06 Released CE3LRD863100-E SUPP #37 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC
2、Page 1 of 3 TUBING, CHLORINATED POLYETHYLENE ESE-M2D289-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a nonreinforced chlorinated polyethylene rubber with high ozone, heat, tear and medium gasoline resistance. 2. APPLICATION This specification was released or
3、iginally for material used in the engine vacuum and emission tubing. 3. REQUIREMENTS All tests shall be conducted on the part when applicable. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Ma
4、terials (WSS-M99P1111-A). 3.1 ORIGINAL PROPERTIES Hardness, Durometer “A“ 65 - 78 (ASTM D 2240) Tensile Strength, min 1,500 psi (ASTM D 412) (10.3 MPa) Modulus at 100% Elongation, min 500 psi (3.4 MPa) Elongation, min 225% 3.2 PROPERTIES AFTER HEAT AGING (ASTM D 865, 70 h at 149 +/- 1 C) Hardness, D
5、urometer “A“ Change 0 to +10 (Note: Hardness is not to exceed 85 durometer) Tensile Strength Change, max -25% Elongation Change, max -50% 3.3 PROPERTIES AFTER IMMERSION IN ASTM FUEL “B“ (ASTM D 471, 70 h at 23 +/- 2 C) Tensile Strength Change, max -50% ENGINEERING MATERIAL SPECIFICATIONESE-M2D289-A
6、Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 Elongation Change, max -30% Hardness, Durometer “A“ Change -25 to 0 Volume Change, max +60% 3.4 OZONE RATING Must meet (FLTM BP 101-01) ESB-M9P1-A Test on Part When Applicable The “as received“ part having a 1
7、in. (25 mm) minimum length, shall have one nipple expanded to a minimum internal diameter of twice the nominal inside diameter for a length of 3/4 +/- 1/8 in (19 +/- 3 mm) by forcing the end of one fitting over the appropriate size metal mandrel lubricated with talc. The expanded outside surface of
8、the fitting shall be wiped with a cotton gauze wetted with naphtha (M14J148) to remove any wax or other foreign material which may affect the ozone test. The clean expanded tubing shall then be tested per FLTM BP 101-01. *For parts less than 1 in (25 mm) long, expand for 1/2 of part length. 3.5 COMP
9、RESSION SET, max 40% (ASTM D 395, Method “B“, 22 h at 150 C) 3.6 VACUUM COLLAPSE, max 3% Test on Part When Applicable Plug all openings except one which is to be attached to a vacuum system capable of maintaining 24 in Hg (81 kPa) for 5 min. The collapse of any unsupported outside diameter of the fi
10、tting under an internal vacuum is measured. 3.7 COLD FLEXIBILITY As Received No cracks or breaks After Heat Aging per para 3.2 No cracks or breaks Test Method: The tubing shall be subjected to a temperature of -40 C for a period of 24 h. The tubing shall then be flexed 180 over a temperature conditi
11、oned mandrel having a diameter equal to eight times the outside diameter of the tubing under test. The test shall be conducted in the cold chamber as rapidly as possible and the operator shall wear temperature conditioned gloves. 3.8 BURST PRESSURE, min 200 psi (ASTM D 380, all diameters) (1.4 MPa)
12、3.9 EXTRACTABLES (ASTM D 297) Toluene Extract, max 15% Waxy Hydrocarbons, max 0.75% ENGINEERING MATERIAL SPECIFICATIONESE-M2D289-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.11 QUALITY CONFORMANCE Initial Qualifications Tests Each supplier to this spe
13、cification must have its initial shipment completely tested to all the above requirements by a Ford Motor Company laboratory in accordance with Q101, and the results of such tests concurred by the affected product engineering office prior to shipment. Production Shipments Tubing from each lot (a lot
14、 is 50,000 ft (15,000 m) of tubing maximum, or the tubing produced in an 8 h shift) shall be tested and certified by the supplier to the requirements of para 3.1, 3.6 and 3.9 (toluene extract only). In addition, the supplier must maintain records of all in-plant control parameters necessary to insure quality and uniformity from batch to batch. 3.12 SOURCE IDENTIFICATION Each tubing shall have the suppliers identification marks permanently affixed. The markings shall be identical to those shown in the Rubber Manufacturers Association Source Identification Book.
