1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 04 N-STATUS Replaced by WSS-M99P32-B A. Reaume 2006 02 28 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.13, 3.14 and 4 1993 09 28 Released NB00I10043054290 BCF, D. Henrickson, KM Printed copies are uncontrolled Copyright 2006, Ford Gl
2、obal Technologies, LLC Page 1 of 3 FIBERGLASS, MOLDED, HIGH DENSITY, LOW ODOR WSB-M12G62-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is made of glass fibers, bonded with an inert, low odor thermosetting resin and compressed into a semi-rigid mat. 2. APPLICATI
3、ON This specification was released originally for material used as a molded, sound absorbing headliner substrate. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part
4、producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 WEIGHT, +/- 10% As specified on the Engineering drawing 3.5 CONSTRUCTION 3.5.1 Glass Fiber Diameter 5.0 - 10.5 micrometer Test Method: Measure the diameter of 10 fibers using a calibrated micr
5、oscope or other suitable means and report the average value. 3.5.2 Binder Content 12 - 26% Test Method: . Cut up a 300 x 300 mm sample into a nichrome or stainless steel wire basket (50 mesh). . Condition in a mechanical convection oven at 100 +/- 3 C to a constant weight and record. . Heat in a muf
6、fle furnace at 540 +/- 10 C until binder is burned off. . Cool, weigh, and calculate % binder on basis of above conditioned weight. ENGINEERING MATERIAL SPECIFICATIONWSB-M12G62-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 3.6 MOISTURE RESISTANCE The ma
7、terial shall not disintegrate, delaminate, sustain mold growth, develop an objectionable odor, or lose rigidity to an extent that it will not support its own weight. Test Method: Suspend a 300 x 300 mm sample in a humidity cabinet maintained at 38 +/- 2 C and 95 - 100% relative humidity for 5 days.
8、Remove and examine. 3.7 TRIMETHYLAMINE LEVEL, max 1 ppm (FLTM AO 107-01) 3.8 FOGGING (FLTM BO 116-03) Fog Number, min 60 The formation of droplets or coalescence into a clear film is cause for rejection. 3.9 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max SE 3.10 ODOR, max (SAE J1351) Wet and Dry Ra
9、ting 2 3.11 RESISTANCE TO ADHESIVE SEEPAGE (Initial Approval Only) Shall resist penetration or seepage of adhesive approved for production through more than 25% of the original material thickness. In addition, there shall be no through “spot“ bleeding, in any area of the material. Test Method: . Pre
10、pare a 300 x 300 mm x thickness of sample. Apply 15 - 20 g of production approved adhesive uniformly on the middle 300 x 300 mm of a 300 x 380 mm phosphate coated and primed steel panel. Place the sample on the treated surface of the panel, and roll with a 300 mm wide roller weighing 2.3 kg, without
11、 applying additional pressure. . Turn the panel upside down and rest the pad on 3 equally spaced rods. Each rod will have a 13 mm diameter and be securely fastened to a 300 x 300 mm masonite board. Place the assembly in a mechanical convection oven, maintained at 100 +/- 2 C. Load the test panel wit
12、h sufficient weight to compress the pad 50% over each of the three rods. The weight must be evenly distributed to give uniform compression. Examine the assembly for seepage after a 24 h period in the oven. ENGINEERING MATERIAL SPECIFICATIONWSB-M12G62-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.12 SOUND ABSORPTION, min (ASTM C 384 or ASTM E 1050) Required for initial source approval only. 250 Hz 1 500 Hz 10 1000 Hz 25 2000 Hz 50 The above sound absorption requirements are based on a sample 20 +/- 2 mm thick having a density of 40 +/- 4 kg/m3.
