FORD FLTM BJ 128-3-2001 RUST PREVENTIVE (WAX-TYPE) COMPOUNDS - CRACK RESISTANCE.pdf

上传人:progressking105 文档编号:747135 上传时间:2019-01-14 格式:PDF 页数:3 大小:46.47KB
下载 相关 举报
FORD FLTM BJ 128-3-2001 RUST PREVENTIVE (WAX-TYPE) COMPOUNDS - CRACK RESISTANCE.pdf_第1页
第1页 / 共3页
FORD FLTM BJ 128-3-2001 RUST PREVENTIVE (WAX-TYPE) COMPOUNDS - CRACK RESISTANCE.pdf_第2页
第2页 / 共3页
FORD FLTM BJ 128-3-2001 RUST PREVENTIVE (WAX-TYPE) COMPOUNDS - CRACK RESISTANCE.pdf_第3页
第3页 / 共3页
亲,该文档总共3页,全部预览完了,如果喜欢就下载吧!
资源描述

1、 FORD LABORATORY TEST METHOD BJ 128-03 Date Action Revisions 2001 07 25 Revised Editorial no technical change A. Cockman 1995 10 16 Printed copies are uncontrolled Page 1 of 3 Copyright 2001, Ford Global Technologies, Inc. RUST-PREVENTIVE (WAX-TYPE) COMPOUNDS - CRACK RESISTANCE Application This test

2、 method is used to determine the resistance of corrosion protective waxes to shrinkage and cracking in cavities. Scope The wax is applied to a suitable preformed test panel (e.g., a simulated door clinch flange inner) and conditioned at constant time and temperature before evaluation. Apparatus Requ

3、ired Forced Air Oven/Thermostatically-Controlled Chamber Must be capable of maintaining 23 +/- 2 C. Hypodermic Syringe 10 mL polypropylene syringe for wax application to test panels. Motorized Stirrer Capable of stirring a wax-type rust-preventive compound at 1 500 cycles per minute. Materials Requi

4、red Reference Wax To illustrate non-acceptable cracking/shrinking. Contact Responsible Materials Engineering activity for material/source. Test Panels Refer to Figure 1; preformed and welded test panels (at an angle or 45 with a minimum of 5 spot welds); electrocoat the assembly. FORD LABORATORY TES

5、T METHOD BJ 128-03 Page 2 of 3 Copyright 2001, Ford Global Technologies, Inc. Conditioning and Test Conditions 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 test

6、ed under the same conditions unless otherwise specified. Procedure 1. Stir the rust-preventive compound for 15 minutes at 1 500 cycles per minute at 23 +/- 2 C. 2. Immediately apply 2 - 4 mL of the test rust-preventive compound to the test panel assembly. The application should be at a nominal 70 mm

7、 height along the width of the front side of the test panel. The wax distribution on the front side panel and the drainage into the junction of the clinch flange should be uniform, free from air bubbles and discontinuities. 3. Repeat Steps 1 - 2 for the reference rust-preventive compound. 4. Allow 1

8、 minute conditioning after rust-preventive compound application and then place the assemblies into the oven or test chamber for 24 h at 23 +/-2 C. Evaluation Examine the test compound for coverage, shrinkage, cracks, and voids. Compare to the reference compound relative to the above issues. Chemical

9、s, 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. FORD LABORATORY TEST METHOD BJ 128-03 Page 3 of 3 Copyright 2001, Ford Global Technologies, Inc. RUST-PREVENTIVE (WAX-TYPE) COMPOUNDS - CRACK RESISTANCE Test Specimen Figure 1

展开阅读全文
相关资源
猜你喜欢
相关搜索

当前位置:首页 > 标准规范 > 国际标准 > 其他

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1