AIR FORCE MIL-PRF-87978 A-1996 REMOVER PAINT EPOXY AND POLYURETHANE SYSTEMS TANK TYPE AMBIENT TEMPERATURE FOR AIRCRAFT WHEELS AND LANDING GEAR COMPONENTS《飞机机轮和起落架零件用环氧树脂与聚氨酯系列缸型常温涂.pdf

1、MIL-PRF-87978A 3 1 December 1996 SUPERSEDING 1 August 1987 MIL-R-8 7978 PERFORMANCE SPECIFICATION REMOVER, PAINT, EPOXY AND POLYURETHANE SYSTEMS, TAM( TYPE, AMBIENT TEMPERATURE, FOR AIRCRAFT WHEELS AND LANDING GEAR COMPONENTS This specification is approved for use by all Departments and Agencies of

2、the Department of Defense. 1. SCOPE 1.1 Scope. This specification establishes the requirements for two types of tank type paint removers for use on aircraft wheels and landing gear components at ambient temperature. 1.2 Classification. Paint remover covered by this specification shall be of the foll

3、owing types, as specified (see 6.2): Type I - One Step , Type11 - Two Step (Paint Remover A and Paint Remover B) 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are cited in sections 3 and 4 of this specification. These lists do not include documents cited in other sections

4、 of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of these lists, document users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether

5、or not they are listed. Beneficial comments (recommendations, additions, deletions) and any pertinent data that may be of use in improving this document should be addressed to: WR-ALCLKJE, 460 2nd St., STE 221, Robins AFB, Georgia 3 1098-1640, by using the Standardization Document Improvement Propos

6、al (DD Form 1426) appearing at the end of this document or by letter. AMSC NfA FSC 8010 DISTRIBUT ION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2 Government Documents. 2.2.1

7、 Specifications and standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the applicable issues of these documents are those listed in the specific issue of the Department of Defense Index of Specifications and

8、Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS DEPARTMENT OF DEFENSE MIL-M-3 17 1 - Magnesium Alloy, Processes for Corrosion MIL-A-8625 - Anodic Coatings, for Aluminum and Aluminum MIL-P-23377 - Primer Coating, Epoxy Polyamide, Chemical and MIL-C-85285

9、 - Coating: Polyurethane, High-Solids Protection of Alloys Solvent Resistant STANDARDS FEDERAL FED-STD-3 13 - Material Safety Data, Transportation Data and Disposal Data for Hazardous Materials Furnished to Government Activities FED-STD-595 - Colors Used in Government Procurement DEPARTMENT OF DEFEN

10、SE MIL-STD-870 - Cadmium Plating, Low Embrittlement, Electrodeposition (Uniess otherwise indicated, copies of the above specifications and standards are available Fom the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, Pennsylvania 191 11-5094.) 2.3 Non-Government

11、 publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the applicable issues of the documents which have been adopted by the DoD are those listed in the specific issue of the DoDISS cited in 2 Provided by IHSNot for ResaleNo re

12、production or networking permitted without license from IHS-,-,-MIL-PRF-87978A the solicitation. Unless otherwise specified, the documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). ANSUASQC Z1.4-1993 - Sampling Procedures and Tables For Inspection

13、By Attributes (Application for copies should be addressed to American Society for Quality Control, 61 1 East Wisconsin Avenue, P.O. Box 3005, Milwaukee, Wisconsin 53201-3005.) American Society for Testing and Materials (ASTM) Standards ASTM B209 ASTM F519 - Standard Specification for Aluminum and Al

14、uminum Alloy Sheet and Plate - Standard Test Method for Mechanical Hydrogen Embrittlement Testing of Plating Processes and Aircraft Maintenance Chemicals ASTM D2196 - Standard Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational (Brookfield) Viscometer (R 1991) (Applicati

15、on for copies should be addressed to the American Society for Testing and Materials, 1916 Race St., Philadelphia, PA 39103.) Society of Automotive Engineers (SAE) SAE AMs 4377 - Sheet and Plate, Magnesium Alloy 3 .OAl -1 .OZn - 0.20Mn (AZ3 1B-H24) Cold Rolled, Partially Annealed SAE AMs 5046 - Sheet

16、, Strip, and Plate, Carbon Steel (SAE 1020 and 1025) Annealed (Application for copies should be addressed to Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited

17、herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-8797AA 999Ob 2

18、02b900 712 MIL-PRF-87978A 3. REQUIREMENTS 3.1 Oualification. Removers furnished under this specification shall be products which are authorized by the qualiwng activity for listing on the applicable qualified products list before contract award (see 4.3 and 6.3). 3.1.1 Type I - one step A paint remo

19、ver qualified as Type I shall meet all the requirements of this section. 3.1.2 Type II - two step. Each of the two paint removers qualified as Type II shall meet all the requirements of this section, with the exception of 3.6 and 3.7. The two materials when evaluated for compliance with the requirem

20、ents of 3.6 will have their weight change taken in aggregate to determine compliance. The two materials, when evaluated for compliance with the requirements of 3.7, shall meet the requirements within a combined total of two hours. 3.2 w. The material covered by this specification shall be tank type

21、paint removers consisting of organic solvents, wetting agents and other ingredients to produce a stable, homogeneous, satisfactory product. 3.2.1 Recycled. recovered. or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum e

22、xtent possible provided that the materials meet or exceed the operational and maintenance requirements, and promote economically advantageous life cycle costs. 3.2.2 Biodegradab ility. All surfactants incorporated in the paint remover formulation shall be at least 90 percent biodegradable. The suppl

23、ier shall furnish certification (f-om the manufacturer of the surfactants) regarding biodegradability characteristics. 3.3 Toxicity. The material shall have no adverse effect on the health of personnel when used for its intended purpose. The material shall not contain any hazardous compound as defin

24、ed in FED- STD-3 13, nor shall it contain any chemical listed in the current report of known carcinogens of the National Toxicology Program. 3.4 Viscosity. The viscosity shall be 15 centipoises or less at 77 k2 OF (25 +1 OC). 3.5 Flammability. When exposed to an external flame source, the remover sh

25、all not continue to burn longer than 3 seconds &er removal of the flame. 3.6 Corrosion. The remover shall not cause pitting or etching of the base metal, nor cause weight changes in the base metal that exceed the limits of Table I. 4 Provided by IHSNot for ResaleNo reproduction or networking permitt

26、ed without license from IHS-,-,-MIL-PRF-07970A m 9999906 2026903 659 m METAL MIL-PRF-87978A SPECIFICATION TABLE I Aluminum (2024-T3) Aluminum (2024-T3) Magnesium ASTM B209 ASTM B209 SAE AMs 4377 Steel I Steel I SAE AMs 5046 SAE AMs 5046 SURFACE TREATMENT (2 by 4-inch Test Sample) WEIGHT C As Receive

27、d MIL,-A-8625, Type II Class 1, Dichromate Seal Type III MIL-M-3 17 1 As Received Cadmium Plated Type II, Class 1 MIL-STD-870, h3.0 mg -4.0 mg h2.0 mg h4.0 mg h5.0 mg/inL NOTE: All panels shall be cleaned and degreased with a suitable solvent, oven dried at 350F for 1 hour, and desiccated for 112 ho

28、ur prior to surface treatment and testing. Panels shall be sheared or cut prior to surface treatment. 3.7 Paint strippin- efficiency. The remover shall remove at least 95 percent of the paint fi-om the painted surface of a 2 inch by 4 inch panel within two hours at 55 +_5 OF (13 I3 OC). 3.8 Hydrogen

29、 Embnttlement. The remover shall not induce tensile failure as defned in ASTM F519. 3.9 Storage stability. After being stored unopened at a temperature of 75 I5 OF (24 I3 OC) for six months, the paint remover shall then conform to all the requirements of this specification. 3.1 O Appearance. The rem

30、over shall be a liquid having a uniform and homogeneous appearance. The component ingredients shall be intimately blended and processed as required in accordance with commonly accepted industrial workmanship standards. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements sp

31、ecified herein are classified as follows: a. Qualification Inspection (see 4.2) b. Conformance Inspection (see 4.3) 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2 Qualification inspection. Qualification tests shall consist of all of the tests

32、specified in 4.5. 4.2.1 qualification procedures. Upon successful completion of all testing requirements as specified herein, the contractor shall provide a certified qualification test report showing that the material conforms to all requirements of this document. The report shall be forwarded to W

33、R- ALCLKJE, 460 2ND ST, STE 221, ROBINS AFB, GA 31098-1640. Upon review and acceptance of the test report, the governent will add the product to the Qualified Products List. 4.2.2 qualification test report. The qualification test report shall include complete data, in the contractors format, describ

34、ing the method of performance of each test and definitive results to verify that the material conforms to all requirements of this specification. The report shall also include complete formulation data identifying each ingredient of the remover by chemical or proprietary name. 4.3 Conformance i nspe

35、ction. Conformance inspection for acceptance of individual lots shall consist of sampling and inspection in accordance with 4.3.1 and tests in accordance with 4.5.1 and 4.5.4. 4.3.1 Sampling and Inspection. 4.3.1.1 S &. A random sample of filled containers shall be selected from each lot in accordan

36、ce with ANSVASQC Z 1.4- 1993. 4.3.1.2 Inspection of filled containers. Each filled container selected in accordance with 4.3.1.1 shall be examined for defects of the container and the seal for evidence of leakage, and for unsatisfactory marking. Each sample filled container shall also be weighed to

37、determine the amount of contents. Any container in the sample, having one or more defects, or under required fill, shall be rejected and if the number of defective containers in any sample exceeds the acceptance number for the applicable sample plan of ANSUASQC 21.4-1993, the lot represented by the

38、sample shall be rejected. 4.3.1.3 Sampling: for tests. Two containers of Type I paint remover shall be selected at random fiom each inspection lot. Four containers of Type II paint remover (two paint remover A and two paint remover B) shall be selected at random fiom each inspection lot. If more tha

39、n one lot is represented in the shipment, each lot represented shall be treated as a separate shipment for sampling purposes. The contents of each container having been selected at random for sampling shall be thoroughly mixed immediately prior to testing. Each sample shall be tested to determine co

40、mpliance with this specification. 4.4 Requirements cross-reference matrix. Table II provides a cross-reference matrix of the Section 3 requirements tested or verified in the paragraphs below. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-

41、87978A 9999906 2026903 421 3.8 3.9 MIL-PRF-87978A 4.5.5 4.5.6 Table II: Requirements Cross-Reference Matrix I REQUIREMENT I VERIFICATION 1 I 3.4 I 4.5.1 I I 3.5 I 4.5.2 I I 3.6 I 4.5.3 I I 3.7 I 4.5.4 I 4.5 Test Procedures. 4.5.1 Viscosity. Viscosity of the paint remover shall be 15 centipoises or l

42、ess at 77 S0F (25 +lC), and shall be determined using a Model LVF Brookfield Viscometer, or its equivalent in accordance with ASTM D2196. Readings shall be taken after the spindle has been operating for a minimum of three minutes. 4.5.2 Flammability. A 1 inch by 6 inch (2.54 cm by 15.24 cm) panel sh

43、all be prepared fi-om any aluminum alloy conforming to Standard ASTM B209. A hole shall be drilled near one end of the panel to facilitate hanging. The panel shall be dipped into a container of the paint remover and immediately suspended on a ring stand. A microburner flame, not exceeding 3/16 inch

44、(5 xnm) in length shall be passed back and forth along the lower edge of the panel within a 2 second period. This operation shall be repeated three times at 3 second intervals. If the paint remover ignites, the burner shall be removed and observation made to determine whether the paint remover conti

45、nues to burn. Burning duration in excess of 3 seconds after removal of the flame shall be cause for rejection. 4.5.3 Corrosion. Two specimens, 2 inches by 4 inches (5.08 cm by 10.16 cm) of each of the metals and treatment specified in Table I shall be prepared. Each specimen shall be weighed to the

46、nearest O. 1 mg, placed singly in suitable glass jars at approximately a 45“ angle, and completely covered with the paint remover. The jars shall be placed in a chamber at 100F (38C) for a total exposure period of 24 hours. At the end of the period, the specimen shall be thoroughly rinsed with a sui

47、table solvent, oven dried at 375 OF for one hour, desiccated for one- half hour and reweighed to the nearest O. 1 mg. Pitting, etching of the base metal, or weight changes exceeding the limits of Table I shall be cause for rejection. 4.5.4 Paint Stipp in2 Efficiency. 4.5.4.1 Preparation of test pane

48、ls. After the test panels have been prepared as specified in Table III, four panels of each metal shall be painted with the coating system as specified. All paint topcoats shall be color number 17875 in accordance with Federal Standard 595. The coating system shall consist of the following: 7 Provid

49、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-87978A 999990b 2026904 368 METAL MIL-PRF-8 79 7 8A SPECIFICATION SURFACE TREATMENT Coatine System Dry Film Thickness Dryinn Time Aluminum (2024-T3) Magnesium Steel Epoxy Primer, one coat (MIL-P-23 3 77) ASTM B209 MIL-A-8625, Type II, Class 1, Dichromate Seal SAE AMs 4377(AZ31B-H24) MIL-M-3171, Type III SAE AMs 5046 MIL-STD-870, Type II,