1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 18 Revised Inserted 3.0; Deleted 3.10 specimens of 50 x 50 mm to be cut from plane areas of finished part) 3.2 THICKNESS 6.0 +/- 1.5 mm or as specified (Slide gauge) on Engineering drawing 3.3 WATER ABSORPTION, max 60% Test Method: 1)
2、 Cut 50 x 50 mm specimens from plane areas of finished part. 2) Seal edges of test specimens against test fluid penetration (e.g use wax). 3) Weigh specimens nearest to 0.1 g. 4) Immerse at room temperature in distilled water for 24 hours. 5) Slightly blot specimens with filter paper to remove exces
3、sive test fluid from the surfaces of specimens. 6) Weigh specimens again nearest to 0.1 g and calculate the increase of weight in % based on original value. ENGINEERING MATERIAL SPECIFICATION SS-M99G9514-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 3.4
4、COLD IMPACT RESISTANCE No cracking Test Method: 1) Place a steel ball of 30 mm diameter, mass 225 g, and a 50 x 50 mm specimen, cut from plane areas of finished part for 4 hours at -40 +/- 2 C in a cold box. 2) Place the specimen horizontally on a base plate and normal to the direction of impact. 3)
5、 While still in the cold box drop the steel ball to the middle of the specimen from a height of 1000 mm. 3.5 TENSILE STRENGTH (ASTM D 412, Die C; specimens to be cut from plane areas of finished part) 3.5.1 Original, min 175 N/cm2 3.5.2 After Humidity Ageing, max -15% (48 h at 38 +/- 2 C and 98 +/-
6、2% relative humidity) 3.5.3 After Heat Ageing No loss (14 d at 90 +/- 2 C, 1 h at room temperature) 3.5.4 After Immersion in Engine Oil, max -15% (48 h in Oil No. 1 of ASTM D 471 at room temperature) 3.5.5 After Immersion in Water, max -15% (48 h in distilled water at room temperature) 3.6 TEAR STRE
7、NGTH, min 220 N/cm (ASTM D 624, Die C; specimens to be cut from plane areas of finished part) 3.7 FINISHED PART REQUIREMENTS 3.7.1 Dimensions As specified on Engineering drawing 3.7.2 Mass The tolerance in mass of finished part for any one supplier shall be maximum +/- 10%, based on the recorded mas
8、s of his originally approved sample. ENGINEERING MATERIAL SPECIFICATION SS-M99G9514-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 5 3.7.3 Heat Stability The finished part shall show no evidence of delamination, no visible shrinkage or distortion, respectiv
9、ely it shall not warp to an extent that would affect its use in ultimate assembly. Furthermore, it shall show no change in appearance when compared with the original unaged part. Test Method: The finished part shall be subjected to a temperature of 90 +/- 2 C in a mechanically convection air dry ove
10、n for 24 hours. Examine after cooling to room temperature. 3.7.4 Environmental Cycling The finished part shall show no evidence of delamination, no visible shrinkage or distortion respectively, it shall not warp to an extent that would affect its use in ultimate assembly. Furthermore, it shall show
11、no change in appearance when compared with the original un-aged part. Test Method: T he finished part shall be subjected 3 times to the following cycle in the sequence indicated below: 16 h at 38 +/- 2 C and 98 +/- 2% relative humidity 8 h at 80 +/- 2 C 3 h at -40 +/- 2 C Examine after cooling to ro
12、om temperature. 3.7.5 Cold Resistance after Ageing No cracking. Test Method: 1) Expose the finished part to 90 +/- 2 C for 120 hour. 2) After cooling to room temperature store the part and a steel ball of 30 mm in dia and 225 g for 4 hours at -40 +/- 2 C in a cold box. 3) Place the test specimen par
13、t horizontally on a base plate and normal to the direction of impact. 4) While still in the cold box drop the steel ball to the middle of the test part from a height of 1000 mm. 3.7.6 Moisture Absorption, max 20% Test Method: 1) Weigh finished part nearest to 5 g. 2) Condition the part in suspended
14、position at 98 +/- 2% relative humidity and 38 +/- 2 C for 24 hours. ENGINEERING MATERIAL SPECIFICATION SS-M99G9514-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 5 3) After 1 hour at room temperature weigh the part nearest to 5 g and determine increase of
15、weight in percentage based on original weight. 3.7.7 Mildew Resistance The material shall be free from mildew and malodor. There shall be no visible changes evident after drying. Test Method: 1) Cut from finished part a piece of 50 x 50 mm and soak with distilled water. 2) Place test piece in a beak
16、er glass of one liter capacity, and cover tightly with a lid. Store at 35 +/- 2 C for 14 days. 3.7.8 Resistance of Coating to Various Test Reagents The finished part shall not dissolve, exhibit tackiness or delaminate when rubbed lightly for 15 seconds with a cotton cloth soaked with each of the fol
17、lowing test reagents. Use a separate specimen for each test reagent. Test Reagents: 1) Oil No.1 of ASTM D 471 2) Brake fluid, SA-M1C9101-A 3) Sulphuric acid (10% by weight in distilled water) 4) Longlife coolant SS-M97B9101-A (50% by weight in distilled water) 5) Rust preventive compound SK-M7C9552-
18、A 3.8 INSULATING PROPERTIES (See Figure 1) Test Method: 1) FLTM EU-BV 60-4, except use metal panel of 1 kg/m2. 2) For measuring, un-molded plane samples of 300 x 300 mm shall be used. For thickness see Figure 1. Note: If the finished part does not allow the preparation of plane specimens as required
19、 above, the supplier is required to provide, together with the Initial Sample Report, specimens of same material and equivalent manufacture used for the finished part. Samples for control and routine checks shall be submitted as required by Quality Control. ENGINEERING MATERIAL SPECIFICATION SS-M99G
20、9514-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5 3.9 HEALTH HAZARDS AND ODOR The material must not contain any ingredients (matter), which, under normal production conditions, could lead to health hazards such as skin rash or irritation (dermatitis), irritation of the mucous membranes, difficulties in breathing, etc. The material shall be free from objectionable odors both as received and after storage.
