1、 FORD LABORATORY TEST METHOD BI 103-04 Date Action Revisions 2001 03 13 Revised Editorial no technical change A. Cockman 1989 05 19 Printed copies are uncontrolled Page 1 of 2 Copyright 2001, Ford Global Technologies, Inc. PREPARATION OF ZINC PRIMED WELD STEEL TEST PANELS Application This procedure
2、describes the method of preparation for zinc primed steel weld test panels. Apparatus Required Spray Gun DeVilbiss Type J.G.A., with No. 30 air cap, Fluid Tip FF, Needle FF. Source: Aerograph De Vilbiss Co. Ltd. Ringwood Road West Howe Bournemouth, Hants or, Simco-Bendix, Mistless type gun, Suction
3、feed spray or airless spray can be used. Source: Simco-Bendix Miracle Sprayers 3 Rue dIndustre 268 Brompton Road Monaco (P.T.E.) London, England Laboratory Oven Capable of maintaining temperatures up to 200 +/- 1 C, preferably with horizontal air flow. The oven must be capable of the following heati
4、ng rates: Oven Temperature before Maximum heating up time for metal insertion of panels temperature of panels to attain (+/1 C) oven air temperature (minutes) 100 8 110 8 120 9 130 9 140 10 150 10 160 11 170 12 180 13 190 14 200 15 FORD LABORATORY TEST METHOD BI 103-04 Page 2 of 2 Copyright 2001, Fo
5、rd Global Technologies, Inc. Thickness Gauge Permascope with a constant pressure probe. Source: Fischer Instrumentation Ltd. Fischer Messtechnik Arnhem Industrial Estate 7034 Maichingen Arnhem Road, Newbury Berks Industriestrasse 21, Germany Test Panels Steel body skin panels ground to a surface fin
6、ish of 0.9 - 1.8 microns CLA, or as specified in the relevant Engineering Materials Specification, prepared in accordance with FLTM BV 150-11 as described below: Sizes: 100 x 300 mm or, 150 x 300 mm or, 75 x 230 mm or, 100 x 200 mm Paint Mixer or Pallet Knife Preparation of Test Panels 1. Bake the t
7、est panels for 5 minutes at 140 +/- 2 C metal temperature to remove any surface moisture. Cool to room temperature. 2. The weld primer is applied to two (2) types of panels as follows: Clean panels - clean, dry steel surface, prepared in accordance with FLTM BV 150-11. Oiled panels - prepared in acc
8、ordance with FLTM BV 150-11 oiling grade Heavy. 3. Adjust the spray gun to ensure that a coating thickness of 40 - 60 microns is obtained in two (2) passes maximum. If the DeVilbiss suction gun is used, apply the zinc welding primer in the following manner: use 0.41 MN/m2 line pressure use 2.5 - 3.0
9、 m hose from the line to the gun 4. Dry and age the panels as required by the relevant Engineering Materials Specification. 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.
