1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Release No. Release/Revision 2010 08 26 N-STATUS WSS-M11P28-A L. Soreide, NA 1990 06 20 NB00E10071023000 Released W. Curtiss/E. Rezendes/M. Perchard Page 1 of 6 SEALING REQUIREMENTS, ADHESIVE, SEALING ACRYLIC ESB-M11P52-A LE
2、NSES TO ABS LAMP BODIES, SERVICEABLE NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the adhesion and sealing requirements for a serviceable adhesive or serviceable adhesive system suitable for bonding/sealing acrylic to ABS rear lamp assemblies in conjunction with mechanical faste
3、ners. 2. APPLICATION This specification was released originally for materials used to seal/bond WSB-M4D687-A acrylic lens to ESF-M4D236-B ABS body in construction of rear lamp assemblies with mechanical fasteners. This material will provide a water tight seal and also be serviceable. 3. REQUIREMENTS
4、 3.1 STATISTICAL PROCESS Suppliers must conform to the requirements of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as described therein is required for material/source approval. Appropriate statistical tools must be used to analyze process/product data so that variation in
5、 the final product is continuously reduced. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to this specification. The IR spectra and thermograms established for initial approval shall c
6、onstitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herei
7、n are based on materials conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION ESB-M11P52-A Page 2 of 6 3.4 ADHESION STRENGTH -
8、TONGUE AND GROOVE 3.4.1 Normal (Condition for 30 minutes at specified temperature prior to test) . Test at 23 +/- 2 C 100 - 450 N . Test at - 29 +/- 2 C, min 300 N 3.4.2 Environmental Aging (Condition for 24 h at 23 +/- 2 C after exposure, then test at 23 +/- 2 C) . 14 days heat age at 88 +/- 2 C 10
9、0 - 450 N . 14 days humidity at 38 +/- 2 C 100 - 450 N and 95 - 100 % RH . 14 days water immersion at 100 - 450 N 32 +/- 2 C . 500 h salt spray described per 100 - 450 N (ASTM B 117) . 500 h ultraviolet light exposure 100 - 450 N . 8 thermal cycles: 100 - 450 N 4 h at 88 +/- 2 C, 4 h at - 29 +/- 2 C
10、, 16 h humidity (38 +/- 2 C and 95 - 100 % RH. Samples shall remain in humidity if delays in testing occur) Test Method: . The tongue and groove plaques shall consist of materials identified in para 5.1 and must be molded by an approved source as recommended by Body and Chassis Engineering. . Clean
11、the surfaces to be bonded with a hot, soapy water solution. The soap shall be free-rinsing, similar to that used for glassware. After cleaning, the plaques are blow dry and aged at 23 +/- 2 C for 24 h to insure dryness. . Dispense an adequate amount of adhesive into the groove plaque. After the appr
12、opriate open time for the adhesive being tested, the tongue is inserted into the adhesive filled groove. Remove any excess adhesive. Maintain proper alignment of the assemblies during cure. ENGINEERING MATERIAL SPECIFICATION ESB-M11P52-A Page 3 of 6 . Test the assemblies at a crosshead speed of 13 m
13、m/minute. Note: Proper alignment of the test assembly is critical. Every effort should be made to maintain uniform tension across the bond area. Cleavage and/or peel of the bond area could yield inaccurate results. . Evaluate a minimum of three assemblies per condition. Report failure mode and peak
14、load in newtons. 3.5 MIGRATION STAIN No staining or discoloration of (FLTM BO 15-1) lens material Test Method: A 4 - 6 mm bead, 100 mm in length, is applied to the face of a 125 x 125 mm piece of acrylic lens material. The assembly shall be exposed in a fluorescent sunlamp cabinet as described in FL
15、TM BO 15-1 for 200 h. A SIGMA dry UV cabinet may also be used. 3.6 SAG RESISTANCE No sagging or flowing Test Method: Apply an “L“ shaped bead 4 - 6 mm in diameter as shown in Figure 1 to two 125 x 125 mm ABS plaques. Immediately fixture the plaques in a vertical position and condition for 24 h at 23
16、 +/- 2 C. Expose one plaque in a vertical position and the other in an inverted position for 2 weeks at 88 +/- 2 C. Observe for any sagging or flowing. 3.7 WATER LEAK RESISTANCE Evidence of water leaks will be cause for rejection. Test Method: . Apply a “U“ shaped bead of test material, 5 mm in diam
17、eter and 300 mm in length to a 150 mm x 150 mm ABS plaque. See figure 2. . Immediately (within 30 s) place a 150 mm x 150 mm acrylic plaque on top of the prepared sample and compress the test material 10 % (use spacers as a guide). Clamp or bolt the assembly throughout the test to maintain compressi
18、on. . Stand the assembly on edge with the opening of the “U“ channel up and condition at 23 +/- 2 C for a minimum of 24 h then subject each assembly to the exposure conditions listed below. . Condition the exposed assemblies for 24 h at 23 +/- 2 C then fill the “U“ channel to a depth of 100 mm with
19、colored water. . Inspect the assembly after 24 h for evidence of water leaks. ENGINEERING MATERIAL SPECIFICATION ESB-M11P52-A Page 4 of 6 Test Conditions: . Normal after 24 h at 23 +/- 2 C . 14 days at 88 +/- 2 C . 8 thermal cycles per para 3.4.2 3.8 REAR LAMP PERFORMANCE REQUIREMENTS Parts assemble
20、d/sealed with adhesive shall meet all engineering requirements specified by design engineering and as indicated on the appropriate prints. 3.9 FUNCTIONAL APPROVAL Materials being evaluated for approval to this specification shall be subjected to a production trial. Functional trial results must be a
21、pproved by the affected assembly operation and Design Engineering. Results shall be made available to Materials Engineering prior to material approval and release. 3.10 ADDITIONAL REQUIREMENTS Specific requirements for material and/or manufactured parts shall be specified on the engineering drawing,
22、 engineering parts specification and/or performance specifications. All critical areas with respect to these properties shall be designated on the Engineering drawing. 3.11 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all characteristics to the material
23、 upon which approval was originally granted. Prior to making any change in the properties, composition, construction, color, processing or labeling of the material originally approved under this specification, whether or not such changes affect the materials ability to meet the specification require
24、ments, the Supplier shall notify Purchasing, Toxicology and the affected Materials Engineering activity of the proposed changes and obtain the written approval of the Materials Engineering activity. Test data, test samples and a new code identification are to be submitted with the request. Substance
25、 restrictions imposed by law, regulations or Ford apply to the materials addressed by this document. The restrictions are defined in Engineering Material Specification WSS-M99P9999-A1, unless a different suffix (e.g., A2 or A3) is specified on the engineering document for the application. ENGINEERIN
26、G MATERIAL SPECIFICATION ESB-M11P52-A Page 5 of 6 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers desiring approval of their materials shall first obtain an expression of interest from the affected
27、 Purchasing, Design and Materials Engineering activity. Upon request, the Supplier shall submit to the affected Materials Engineering activity its own laboratory report to the specification (test results, not nominal values), the material designation and code number and test specimens for Ford evalu
28、ation. Upon approval, the material will be added to the Engineering Material Approved Source List. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 SUBSTRATES 5.1.1 Acrylic meeting WSB-M4D687-A nominal 3.2 mm thickness 5.1.2 ABS meeting ESB-M4D236-B nominal 3.2 mm thickness ENGINEERING MATERIAL SPECIFICATION ESB-M11P52-A Page 6 of 6 Figure 1 Figure 2
