FORD WSS-M98D33-A10-2002 TUBING POLYAMIDE COVER PTFE INNER TUBE CONDUCTIVE LOW PERMEATING FUEL LINE TO BE USED WITH FORD WSS-M99P1111-A 《低渗透燃料管路不导电带聚四氟乙烯(PTFE)内管和合金聚酰胺盖的管件 与标准FO.pdf

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1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 12 05 Activated G. Gullen Printed copies are uncontrolled Page 1 of 5 Copyright 2002, Ford Global Technologies, Inc. TUBING, POLYAMIDE COVER, PTFE INNER WSS-M98D33-A9 TUBE, NON-CONDUCTIVE, LOW PERMEATIN

2、G FUEL VAPOR LINE TUBING, POLYAMIDE COVER, PTFE INNER WSS-M98D33-A10 TUBE, CONDUCTIVE, LOW PERMEATING FUEL LINE 1. SCOPE These specifications define multilayered fuel and vapor lines comprised of a heat, hydrocarbon, water, and chloride resistant outer cover of polyamide or alloyed polyamide or equi

3、valent material. The cover is well adhered to a low fuel permeability and fuel/alcohol blend resistant inner tube such as conductive or non-conductive polytetrafluoroethylene (PTFE) or equivalent material. This construction is sufficiently flexible for ease of forming, assembly, and routing, and is

4、resistant to kinking. 2. APPLICATIONS These specifications were released originally for electrically non-conductive fuel vapor and electrically conductive supply and return liquid carrying fuel lines utilized in engine jumpers, crossover lines, and tank jumper fuel and vapor lines for passenger car

5、and light truck applications where low permeation is required. This tubing is designed to be used through a temperature range of - 40 to + 140 degrees with a sustained half-life operation defined as loss of 50% physical properties of 120 C for 1500 hours and intermittent temperature excursions up to

6、 140 C for 150 hours. This fuel line will meet the requirements for both reformulated and flexible fuels. Note: The construction and performance properties of the WSS-M98D33-A9 and A10 are essentially the same except for inner tube electrical conductivity in the A10. Liquid fuel carrying application

7、s must use the A10. Certain applications may have elevated temperature excursions if the functionality of the part is not compromised by operation in an environment where there is a loss of more than 50 % of the physical properties. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS

8、Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A9/A10 Page 2 of 5 Copyright 2002, Ford Global Technologies, Inc. 3.2 INITIAL QUALIFICATION Prior to seeking approval to t

9、his specification, initial qualification processes include evaluating materials and constructions according to the applicable Fuel System Design Specification (SDS) and individual Design Verification Methods (DVM). 3.3 FUEL AND VAPOR LINE PERFORMANCE REQUIREMENTS This specification is a performance-

10、oriented document that may be used as a materials and construction selection guideline, depending upon particular system performance requirements. The minimum requirements listed in this specification represent values based upon historical data from similar products and/or minimum system requirement

11、s. Actual values listed under each individual construction are to meet or exceed those minimum requirements using data from at least 6 sample lots from actual production articles. Plus or minus 3-sigma data except where noted will be required prior to approval of the product to this specification. H

12、istoric Product Minimum Actual 3.3.1 Peel Strength, kg/mm, min 0.05 0.15 (ASTM D 903, Peel Strength of Adhesive Bond between barrier and adjacent layers) Specimens shall be longitudinally cut approximately 3 mm in width and 300 mm in length from tube by means of suitable clamping jig and sliding cut

13、ting fixture holding parallel scalpel blades. Mechanically initiate separation of the layers in the resultant strip by using a scalpel or other suitable hand-held instrument. Install separated layers in opposing grips of a tensile machine and pull at a cross-head speed of 50 mm/minute. Alternate Met

14、hod: Initiate separation of the two layers of the helical specimen obtained per SAE J2260 adhesion test. Affix in a tensile machine as described above. Calculation: Determine the actual Peel Strength per millimeter width. Peel Strength (kN/m) = Load (kN) / specimen width (m) (Measured to the nearest

15、 +/- 0.01 mm using optical comparator or equivalent instrument.) Report lowest value. 3.3.2 Room Temperature Burst, MPa, min 3.5 6.0 (SAE J2260) ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A9/A10 Page 3 of 5 Copyright 2002, Ford Global Technologies, Inc. Historic Product Minimum Actual 3.3.3 High

16、Temperature Burst, MPa, min 1.0 2.5 (SAE J2260 except temperature 90 C) 3.3.4 Heat Aged (ISO 188/ASTM D 573, 168 h 115 +/- 2 C) After heat aging determine burst 624 (A9 spec) 6000 strength, kPa, min 4140 (A10 spec) 7000 (SAE J 2260) Check for delamination (A9 spec) No adhesion loss (SAE J 2260) (A10

17、 spec) No adhesion loss 3.3.5 Heat Aged (ISO 188/ASTM D 573, 1008 h 90 +/- 2 C) After heat aging determine burst 624 (A9 spec) 5000 strength, kPa, min 4140 (A10 spec) 7000 (SAE J 2260) Check for delamination (A9 spec) No adhesion loss (SAE J 2260) (A10 spec) No adhesion loss 3.3.6 Resistance to Zinc

18、 Chloride No cracks No cracks (SAE J2260. The zinc chloride must or fractures or fractures be in contact with the ends of the tubing but should not be able to enter inside the connectors) 3.3.7 Resistance to Kinking Ball must Ball must (SAE J 2260) pass freely pass freely 3.3.8 Burst Test Kinked Tub

19、ing, MPa, min 2.6 4.5 (SAE J2260) 3.3.9 Cold Impact Resistance at - 40 C (SAE J 2260) Minimum burst after impact, MPa 2.6 4.5 ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A9/A10 Page 4 of 5 Copyright 2002, Ford Global Technologies, Inc. Historic Product Minimum Actual 3.3.10 Dimensional Stability T

20、est Method: Expose 300 mm of tubing in an air circulating oven (ASTM D 573/ISO 188) for 168 h at 120 +/- 2C. Longitudinal shrinkage of original 3 % length (max) 2.0 3.3.11 Resistance to 65 % Fuel C + 20 % Methanol + 15 % MTBE Fuel expose ID of tubing at 40 +/- 2C for 1000 hr Burst Test, MPa, min 2.6

21、 5.0 Check for Delamination (A9 spec) No Delamination (SAE J 2260) (A10 spec) No Delamination 3.3.12 Resistance to 85 % Fuel C +15 % Methanol Fuel expose I.D. of tubing at 40+/-2 C for 1000 hrs Burst Test, MPa, min 2.6 5.5 Check for Delamination (A9 spec) No Delamination (SAE J 2260) (A10 spec) No D

22、elamination 3.3.13 Resistance to Oxidized Fuel (Sour Gas) (SAE J 2260, 336 h at 60 +/- 2 C, except prepare fuel according to SAE J1681, 90mMol/L) Burst Test, MPa, min 2.6 5.0 Check for Delamination (A9 spec) No Delamination (SAE J 2260) (A10 spec) No Delamination ENGINEERING MATERIAL SPECIFICATION W

23、SS-M98D33-A9/A10 Page 5 of 5 Copyright 2002, Ford Global Technologies, Inc. Historic Product Minimum Actual 3.3.14 Permeation Resistance, g/m2/24 hr, max. As specified in 10 (SAE J 2260, using 75% Fuel C Engineering 25 % methanol, 60oC, 200 kPa) Drawing (SAE J 2260, using 90% Fuel C and 6 10% methan

24、ol, 60oC, 200 kPa)A10 Only 3.3.15 Electrical Resistance, Ohms/square Surface resistivity 5.5 X 10e5 (SAE J 2260) less than or equal to 10e6 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1. RECYCLING CODE A9 A10

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