1、 FORD LABORATORY TEST METHODBN 155-01 Date Action Revisions Ver. 3 2008 10 07 Revised Changed the red and green text to black J. Crist, FNA 2006 09 29 Revised Equip Set Up #3, Test Proc 1 Added 4 & 5 in Equip Set Up (changes in red) J. Crist2006 03 14 Activated A. Wedepohl, C. Leslie Printed copies
2、are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 2 RESISTANCE TO SIMULATED FINGER TIP ABRASION Application This procedure is used to determine the resistance to simulated finger tip abrasion of coated surfaces. Apparatus/Material Required Equipment Abrex Testing Equipment or
3、equivalent Available from: INNOWEP GmbH D97070 Wurzburg Phone: 49.931.32.2980 AATCC Gray Scale according to AATCC Evaluation Procedure 1/ISO 105-A02 for evaluation of color change. Available from: AATCC P.O. Box 12215 Research Triangle Park, North Carolina 27709 U.S.A. and British Standards Institut
4、ion 3 York Street Manchester M2 2AT United Kingdom Material Abrex Abrasion Cloth ABR2050-1 Available from: Metron Instruments - U.S.A. Representative P.O. Box 39325 Solon, Ohio 44139 U.S.A. Phone: 216.33.20592 Equipment Calibration Calibration is performed as recommended by the equipment manufacture
5、r. FORD LABORATORY TEST METHODBN 155-01 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 2 Sample Preparation and Conditioning Sample Preparation Evaluate the sample for dirt or defects on the surface. If either is visible circle the area and test in a clean ar
6、ea. Sample Conditioning All test values indicated herein are based on material 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. Note: Production parts shall be
7、 tested unless otherwise mutually agreed upon by Materials Engineering and the design activity. Equipment Set Up 1. Use a 5 N load or as specified in the SDS requirement or Material Specification. 2. Set machine to stop after the strokes specified in the Material Specification. 3. Advance abrasion c
8、loth 0.2 seconds every 5,000 strokes. 4. Test Piston with a 44 Shore A hardness. 5. Abrasion path of 25-30 mm length and 8-10 mm width. Test Procedure 1. Place sample in the sample stage of the Abrex machine and secure. Pull out the piston completely and move the stage in the direction of the test p
9、iston until the test sample and the piston face each other. Align the sample so that the tested surface is approximately 3-5 mm beneath the piston. 2. Place the abrasion cloth in front of the piston to ensure cloth is aligned with test piston. 3. Adjust the stage to correctly position the sample and
10、 set the abrasion path. 4. Set the machine to stop after the cycles specified in the specification requirement. 5. Start the machine. Note: Periodic inspection of the sample is recommended to detect failures before all the required cycles have completed. Recommended interval is every 10,000 cycles.
11、Evaluation and Reporting Report original film thickness using ASTM B 487 or other mutually agreed upon method. Evaluate the abraded area for wear through to substrate and report if present. For metallic paint, rate and report the initial and final color (AATCC gray scale, ISO 105-A02 procedure 1) in
12、itial gloss and paint film thickness. Paint film thickness must meet specification requirements. For pad printed parts graphics must be readable after testing. The number of hits must be reported and represent production process Chemicals, materials, parts and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities.
