NAVISTAR CEMS DT-10-2001 Rubbing Wear Test for Interior Components.pdf

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1、 This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. Ga42001 by International Truck and Engine Corporation. OCTOBER 2001 Page 1 o

2、f 2 INTERNATIONAL TRUCK AND ENGINE CORPORATION CEMS (CORPORATE ENGINEERING MATERIAL SPECIFICATION)NUMBER: CEMS-DT-10 TITLE: Rubbing Wear Test For Interior Components CURRENT ISSUE DATE: October 2001 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE OF: Ju

3、ly 1999 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate

4、 safety and health practices and to determine the applicability of regulatory limits prior to use. Change Notice: Reformatted and Editorial Changes 1.0 SCOPE This is a method to determine the wear characteristics of interior components of various compositions. 2.0 APPARATUS A mechanical device capab

5、le of imparting a rubbing action with reciprocating stroke of 95 mm (3.75 in.) applied at a rate of 95 to 105 strokes per minute. 3.0 MATERIAL 3.1 A 44 mm (1.75) wide strip of # 10 white undyed cotton duck cloth approximately 305 mm (12 in.) in length 3.2 Roll of clear packaging tape approximately 4

6、7 mm (1.875 in.) wide 3.3 Cutting tool to cut tape and/or trim test material if necessary i.e. knife or razor blade 3.4 A 0.68 kg (1.5 lb.) weight that can be attached to the cotton cloth for foam or rubber steering wheels or a 1.36 kg (3.0 lb.) weight for hard plastic wheels 4.0 PROCEDURE 4.1 Inspe

7、ct the interior component to determine type (i.e. Foam/rubber, or hard plastic). 4.2 Mount the component in approximately “Truck Position” on the testing device. 4.3 Attach one end of the cotton cloth to the reciprocating arm of the test devise. 4.4 Attach the appropriate weight to the other end of

8、the cotton cloth. 4.5 For foam or rubber “soft feel” components go to (4.6) and for hard plastic components go to (4.7). 4.6 Apply clear tape to the component outlining an exposure zone approximately 12.7 mm (.5 in.) x 51 mm (2.0 in.) on the top surface. 4.7 Place the cotton cloth and weight over th

9、e top of the component so that the weight hangs over the side of the component opposite the test device. 4.8 Reset the cycle counter to 0. 4.9 Set the rate of the test device to 95 to 105 strokes per minute. 4.10 Depress the start switch to begin the test. NUMBER: CEMS-DT-2 TITLE Flame Resistance Te

10、st CURRENT ISSUE DATE: October 2001 This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. Ga42001 by International Truck and Engine

11、 Corporation. OCTOBER 2001 Page 2 of 2 4.11 Monitor the test periodically to evaluate wear on the component and condition of the clear tape outlining the exposure zone of a “soft feel” wheel. 4.12 Replace the clear plastic when it no longer outlines the intended exposure zone. 4.13 Continue monitori

12、ng and repeat (4.12) if necessary for a “soft feel” component. 4.14 End the test when the specified number of cycles has been reached or when the component exhibits excess wear. 4.15 Remove the part and the cotton cloth from the apparatus and evaluate each for wear and/or color transfer per the AATCC Chromatic Transference Scale 5.0 REPORT Report the color transference by AATCC Number and describe the extent of the wear pattern.