1、FORD LABORATORY TEST METHOD BN 102-06 2001 O9 17 WEBBING FRICTION ASSESSMENT Revised Editorial - no technical change A. Cockman Application This procedure is used to measure the friction force exerted between the seat belt webbing and the pillar loop. Apparatus Acetal Bar Source: Autoliv Kolb Limite
2、d Chandler Road Chichester West Sussex, England The Acetal Bar should be mounted with its longitudinal center line rotated by 22.5 from the vertical (see Figure 1). Tensile Machine with Graphic Recorder Weight - 1 .O kg Conditioning and Test Conditions All test values indicated herein are based on m
3、aterial conditioned in a controlled atmosphere of 23 +/- 2 OC and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Cut a webbing sample of 1200 +/- 5 mm length. 2. Attach a 1 .O +/- 0.01 Kg weight to on
4、e end of the webbing. I Date I Action I Revisions I Copynght02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD BN 102-06 3. Attach the other end of the webbing to the load cell making an angle of 45 +/- 1“ with the vertical (see Figure 1). 4. Starting from rest, the weight is to be lif
5、ted 545 +/- 5 mm, stopped and then lowered the same distance at a speed of 200 mm/minute. 5. Repeat this cycle ten times and on the eleventh cycle the force in the load cell is to be graphically recorded. 6. A new bar is to be used for each test. Repeat steps 1 - 5 twice using new sample of webbing
6、and new Acetal Bar. Evaluation Record the average of the maximum and the average of the minimum force at 50 mm, 250 mm and 450 mm for the three tests. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining p
7、roper use and handling in its facilities. Page 2 of 3 Copynght02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD BN 102-06 WEBBING FRICTION ASSESSMENT i , f 7 , Acetal Bar i Load Cell / Directi on of Pull ,.-Webbing cI*,.-.I.-. ;- I Figure 1 Page 3 of 3 Copynght02001, Ford Global Technologies, Inc
