A 320 SRM 51-21-11 APLICATION OF PROTECTIVE TREATMENT TO METAL PARTS

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Customer : ENV Type : A320 Rev. Date : Nov 01, 2016 51-21-11 Application of Protective Treatment to Metal Parts Manual : SRM Selected effectivity : Electrodes: Use DALIC or DALIC UK or SIFCO tampons which have to be prepared in accordance with the material manufacturer's instructions, for optimum deposit speed area and shape of the anode must be determined by the area and the shape of the part to be plated the size should be s/6 < S < s/3 where "s" is the area to be treated and "S" the area of the anode. Hot air dryer (oil free) 2 Materials ITEM NOMENCLATURE QTY MATERIAL/REMARKS 1 Cleaning Agent AR Material No. 11-003 or 11-026 (Refer to CML) 2 Lint free cloth, cotton wool AR Local Purchase 3 Abrasive Paper - Aluminum Oxide AR Local Purchase (grade 320 - water resistant) or finer 4 Masking tape AR PVC insulating tape or 3M No. 470 or aluminum tape Material No. 08-052 (Refer to CML) 5 Brush or Swab AR Local Purchase 6 De-mineralized Water AR 7 SCOTCH-BRITE pads - red AR Local Purchase 8 Aluminium Oxide Powder (80 microns) AR DALIC Reference CC115 9 Brush Plating Tools (use graphite anode) and Bonnets AR 10 DALIC Cadmium plating Solution AR 2023 11 Chromic finish solution AR 12 Cleaning de-oxidizing solution 13 ATTAQUE No. 2 14 SIFCO Cadmium LHE 15 SIFCO Passivating Solution 16 SIFCO Electrolytic Degreasing Solution 17 Etching dismutting solution AR AR Separate anodes, bonnets and solution must be used at each stage of the process .Do not use steel tools containing more than 5% of chromium Code 11028 from DALIC Code DPS6123 from DALIC UK Passivateur No. 2 Code 10033 from DAL- IC Cadmium/Zinc Passivating Code DFS 8010 from DALIC UK DECA Z from DALIC Code 10007 Code 10004 from DALIC or ACTIVAT- OR/ETCH No. 3 Code DPR5003 from DALIC UK Code SPS 5070 from SIFCO Code SSS 3002 from SIFCO Code SCM 4100 from SIFCO SCM 4350 from SIFCO Storage conditions: Keep away from humidity and light at a temperature between 5° C to 30° C. Recommended shelf life is three years in original container. DALIC 41, Rue des Eaux, B.P. 90139 35501 VITRE - France Tel: (33) 2.99.75.53.80 Fax: (33) 2.99.74.49.31 service@dalicworld.com Print Date: December 29, 2016 Page 24 of 29 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Customer : ENV Type : A320 Rev. Date : Nov 01, 2016 51-21-11 Application of Protective Treatment to Metal Parts Manual : SRM Selected effectivity : DALIC UK Ltd South Lodge House, 68-70 Frogge Street Ickleton (South Cambridge Shire) CB 10-1 SH - UK Tel: 0 1799 532 002 Fax: 0 1799 532 003 info.dalicuk@tiscali.co.uk Storage conditions: 21° C to 43° C RH 30 to 90, keep away from humidity and light at a temperature between 5° C to 30° C. Recommended shelf life is three years in original container. SIFCO applied surface concepts 16, rue de la Noue Guimante Lots 22/23 PA de la Courtilliere 77400 Saint-Thibault des Vignes http:// www.electrolyseautampon.com 3 How to obtain the correct thickness The thickness of the deposited metal is controlled by the ampere-hour meter. It further depends upon the area to be plated and the specific plating factor. The specific plating factor gives the number of ampere-hours required to produce a deposit in mm or inches onto a surface area of square centimeters or square inches. SOLUTION FACTOR FOR MEASUREMENT IN (mm) FACTOR FOR MEASUREMENT IN (in) DALIC Code 2023 0.4 70 SIFCO SPS 5070 0.4 70 Table 007 - Specific Plating Factor Example 1: You have to plate an area of 25 cm² (3.875 in²) with SPS 5070 cadmium LHE plating solution. The required thickness is 0.015 mm, the correct ampere hours setting is: 0.4 x 0.015 x 25 = 0.15 ampere-hours. Example 2: You have to plate the same area with the same thickness, but you measure in inches. The thickness is 0.0006 in and the area has the size of 3.87 sq.inch. Determine the correct number of ampere hours as follows: 70 x 0.0006 x 3.87 = 0.162 ampere-hours. 4 Inspection The cadmium deposit must be fine grain, smooth and free from blisters, pitting, burns and other defects. Ensure that the cadmium deposit has good adherence to the metal surface. Check this with an adhesive tape. Put a strip of adhesive tape onto the treated surface and draw it quickly away. The adhesive tape must be free from cadmium particles. Refer to PMS Chapter 01-02-21 for more information. 5 Procedure a b c Remove all grease from the repair area (minimum one inch outside the repair area) with a clean cloth soaked in cleaning agent (Material No. 11-003 or 11-026 ) and wipe dry with a clean cloth or absorbent paper. Mask as necessary to define the area to be plated. If the area was already plated with cadmium, the brush plating must overlap the existing cadmium by about 4 mm (0.157 in), refer to Figure 001 . Brush Plating Procedure Use one of the alternative procedures given in Paragraph 2.D.(1).(d).5.d and 2.D.(1). (d).5.e . d SIFCO Solution SPS 5070 NOTE: Prepare the work place with all the tools and solutions. Use a different and identified tool for each solution. Print Date: December 29, 2016 Page 25 of 29 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A 320 SRM 51-21-11 APLICATION OF PROTECTIVE TREATMENT TO METAL PARTS

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