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

Recommendations

Info

Customer : ENV Type : A320 Rev. Date : Nov 01, 2016 51-21-11 Application of Protective Treatment to Metal Parts Manual : SRM Selected effectivity : phosphated in a bath and strongly oxidized, the corrosion must be removed by abrasive blasting (Refer to Chapter 51-74-00 ). 3 For the required paint coatings after this treatment refer to Chapter 51-23-11 . (b) Safety Precautions WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERI- AL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS. WARNING: OBEY THE MANUFACTURER’S INSTRUCTIONS WHEN YOU USE THE CLEANING AGENTS (MATERIAL NO. 11-003 AND 11-026). THESE CLEANING AGENTS ARE DANGEROUS. WARNING: OBEY THE MANUFACTURER INSTRUCTIONS WHEN YOU USE THE PHOSPHORIC SOLUTION (MATERIAL NO. 05-041 OR 05-042). THESE PHOSPHORIC SOLUTIONS ARE DANGEROUS. (c) Brush Phosphating of Steel Parts in Installed Position 1 Materials ITEM NOMENCLATURE QTY MATERIAL/REMARKS 1 Phosphoric solution - Material No. 05-042 (Refer to CML) 2 Cleaning agent - Material No. 11-003 or 11-026 (Refer to CML) 3 Cheese cloth - 4 Brush - 5 Masking tape - 6 Hot-air dryer - 2 Procedure a Clean and remove grease from the repair area with a clean cloth, soaked in cleaning agent (Material No. 11-003 or 11-026 ). b Mask all adjacent surfaces on which the phosphoric solution (Material-Number 05-042 ) can possibly cause damage. WARNING: PHOSPHORIC SOLUTION (MATERIAL NO. 05-042) IS DANGEROUS. c Apply a large quantity of phosphoric solution (Material No. 05-042 ) with a brush or a clean cloth. Permit the solution to penetrate for 10 minutes. d e NOTE: The surface must, when treated correctly, show a grey-white color. Do the phosphating procedure again if necessary. Clean the surface with a clean cloth, soaked in water. Dry the area with hot air. f Apply the required paint coatings (Refer to Chapter 51-23-11 ). (d) Phosphating of Steel Parts by Immersion in a Phosphoric Bath 1 For details of this treatment and the necessary equipment refer to PMS Chapter 01-01-10 . (3). Hard Chromium Plating (a) General Print Date: December 29, 2016 Page 20 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 : 1 Hard chromium plating is a procedure in which the surface of the material is given a chromium layer. 2 Hard chromium plating is required when: - the original chromium layer becomes thinner by friction than is permitted, - or the material under the chromium layer is corroded. (b) Safety Precautions WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERI- AL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS. WARNING: OBEY THE MANUFACTURER INSTRUCTIONS FOR THE MATERIALS WHICH YOU USE FOR CLEANING PROCEDURES BEFORE HARD CHROMIUM PLATING. WARNING: OBEY THE MANUFACTURER INSTRUCTIONS FOR EACH CHEMICAL WHICH YOU USE IN THIS PROCEDURE. (c) Procedure For details of hard chromium plating and the necessary equipment refer to PMS Chapter 01-02-11 . (4). Silver Plating (a) General 1 Silver Plating is a procedure in which the surface of the material is given a layer of silver. You do this with the silver electrolytic process. Silver plating is used for its electrical conductive properties and its resistance to fretting corrosion under hot conditions. (b) Safety Precautions WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERI- AL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS. WARNING: OBEY THE MANUFACTURER INSTRUCTIONS FOR THE MATERIALS WHICH YOU USE FOR CLEANING PROCEDURES BEFORE SILVER PLATING. THESE MATERI- ALS ARE DANGEROUS. WARNING: OBEY THE MANUFACTURER INSTRUCTIONS FOR EACH CHEMICAL WHICH YOU USE IN THIS PROCEDURE. SOME OF THESE MATERIALS CONTAIN IRRITANTS. (c) Procedure For details of silver plating and the necessary equipment refer to PMS Chapter 01-02-01 . (5). Zinc Spraying (a) General 1 Zinc spraying is a procedure in which the surface of the metal is given a zinc layer. This can be necessary when the steel repair parts touch aluminum components and galvanic corrosion can occur. 2 The zinc layer is a type of sacrificial protection. The corrosion effects initially damage the zinc layer and not the material below the protective layer. (b) Safety Precautions WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERI- AL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS. Print Date: December 29, 2016 Page 21 of 29 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Page 1 and 2: Customer : ENV Type : A320 Rev. Dat
Page 19: Customer : ENV Type : A320 Rev. Dat
Page 29: Customer : ENV Type : A320 Rev. Dat

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

Create successful ePaper yourself

Delete template?

Save as template?