NAVY MIL-A-8625 F (1)-2003 ANODIC COATINGS FOR ALUMINUM AND ALUMINUM ALLOYS《铝及铝合金阳极涂层》.pdf

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1、 MILITARY SPECIFICATION ANODIC COATINGS FOR ALUMINUM AND ALUMINUM ALLOYS This amendment forms a part of MIL-A-8625F, dated 10 September 1993, and is approved for use by all Departments and Agencies of the Department of Defense. PAGE 2 2.1.1, under SPECIFICATIONS, MILITARY: Delete “MIL-C-81706 Chemic

2、al Conversion Materials for Coating Aluminum and Aluminum Alloys.” PAGE 3 3.3.1.2, line 7: Delete “IA” and substitute “IB.” PAGE 4 3.3.1.2: Change paragraph number to “3.3.1.3.” In line 4, delete “IA” and substitute “IB.” PAGE 5 Add: “3.4.2.2 Photosensitized (identification) nameplates. When type II

3、 anodic coatings are specified for use in photosensitized nameplates, oxalic acid anodizing may be used in lieu of sulfuric acid anodizing. If oxalic acid anodizing is used, the resultant coating shall meet the requirements of this specification for type II anodic coatings. If copy and background co

4、lor are added to photosensitive nameplates, silver compounds or dyes shall be used. Unprocessed photosensitive aluminum shall be classified as class 1. Nameplates made from photosensitive aluminum shall be classified as class 2.” AMSC N/A 1 of 3 AREA MFFP DISTRIBUTION STATEMENT A. Approved for publi

5、c release; distribution is unlimited. NOT MEASUREMENT SENSITIVE MIL-A-8625F AMENDMENT 1 15 September 2003 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-8625F AMENDMENT 1 2 PAGE 6 3.7.1.2c: Delete and substitute: “c. In addition to the require

6、ments in a and b above, types I and IB test specimens that exhibit large areas of gross discoloration (dark grey areas) shall meet the following additional requirement. The total number and per panel number of pits used to verify that the requirements of a and b above are met shall be determined by

7、adding the number of pits found with the unaided eye to the number of pits found in the areas of gross discoloration determined when examined at a magnification of 10X. This requirement does not apply to areas of slight discoloration or fading such as those areas that may result from chromate leachi

8、ng during salt spray exposure.” PAGE 9 TABLE II: Add “2/ III” to column 2, row 3, Applicable type I, IB, IC, II, IIB. Add the following footnote below the table “2/ Type III coatings shall be tested for corrosion resistance only when it is specified that the coating is sealed.” PAGE 10 4.3.3.2.3: De

9、lete and substitute: “4.3.3.2.3 Test specimens for corrosion and light fastness resistance. Corrosion resistance shall be determined on undyed and sealed production parts or specimen panels (see 4.3.3.2). When light fastness testing is specified (see 6.2), it shall be performed on dyed and sealed (c

10、lass 2) production parts or specimen panels (see 4.3.3.2). When specimen panels are used, they shall have a width of not less than 3 inches, a length of not less than 10 inches, and a nominal thickness of not less than 0.032 inch. PAGE 13 6.1, line 2: Delete “yipvide” and substitute “provide.” 6.1.1

11、, line 7: Change “MIL-C-81706” to “MIL-DTL-81706.” PAGE 18 6.16, lines 2 and 4: Change “silicone” to “silicon.” Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-8625F AMENDMENT 1 3 PAGE 19 Delete 6.23 and substitute: “6.23 Subject term (key word

12、) listing. Anodizing Chromates Chromic acid Phosphoric acid Potassium dichromate Sodium dichromate Sulfuric acid Custodians: Preparing activity: Army MR Navy - AS Navy AS (Project MFFP-0698) Air Force 11 Review activities: Army AR, AV, AT, CR, CR4, MI Navy OS, SH Air Force 70, 71, 99 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-