1、I . MIL-A-47073 80 = 9999906 0108030 b m w-52- d. MIL-A-47073 (MI ) 10 May 1974 SUPERSEDING MIS 15296 18 February 1965 MILITARY SPECIFICATION ADHESIVE, PLASTIC RESIN This specification is approved for use by all departments and agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specific
2、ation cavers two types of - plastic resin adhesives. 1.2 Classification. The two adhesive systems shall be classified as follows: a. Type I, iron filled. b. Type II, aluminum filled. 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invitation for bids or request
3、 for proposal, form a part of the specification to the extent specified herein. STANDARDS Mi 1 i tary MIL-STD-129 Marking for Shipment and Storage (Copies of specifications, standards, publications, and drawings required by suppliers in connection with a specific procurement function should be obtai
4、ned from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. FSC-8040 THIS DOCUMENT CONTAINS PAGES . Licensed by Information Handling Services-7 MIL-A-47073 0 7977706 OL08
5、03L M I L -A- 47073 (111) Unless otherwise indicated the issue in effect on date of invitation for bids or request for proposal shall apply American Society for Testing and Materials ASTM D 638 Test for Tensile Properties of Plas tics ASTM D 695 Test for Compressive Pnoperties of Rigid Pldstics, Met
6、hod of ASTM D 790 Standard Method of Test for Flexural Properties of Plastics ASTM D 1002 Test for Strength Properties of Adhesives in Shear by Tension Loading (Metal-to-Metal) ASTM D 1084 Test for Consistency of Adhesives ASTM D 1875 Test for Density of Adhesives in Fluid Form . ASTM D 2240 Test fo
7、r Lndentation of Rubber by Means of a Durometer, Method of (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Phila- delphia, Pennsylvania 19103.) Uni form C1 as si fi cati on Commi ttee Uniform Frei gh t Classification Rules (Application
8、 for copies should be addressed to Uniform Classi- fication Committee, 202 Chicago Union Station, Chicago, I1 1 inois, 60606. ) Ameri can Truc ki ng Associ at i on Pub 1 i ca ti on National Motor Freight Classification Rules and Container Regulations (Application for copies should be addressed to th
9、e National Classification Board, 1424 Sixteenth, N.W., Washington, D.C. 20013.) Technical society and technical association specifications and standards are generally available for reference from libraries. They are also distributed among technical groups and using Federal agencies. 2 . f . _- . ,.s
10、 . . I Licensed by Information Handling Services3. REQUIREMENTS 3.1 Preproduction sample. Unless otherwise specified (see 6.1), a preproduction sample sha3.1 meet the requirements of this specification. 3.2 Material. Type I and Type II adhesives shall be a two-component system consisting of plastic
11、resins and rein- forci ng agents. . 3.3 Physical properties. The physical properties of the adhesive components shall be as specified in Table I. Table I Physical Properties Property Type I, Re- quirements & Values Type II, Re- qui reme n ts & Values Plastic Resin 13.2 pounds, mi n cps, min black 24
12、 to 26C(75.2 to 78.8OF Weight per gallon at Viscosity at 22 to 23OC(71.6 to 73.4OF) Color Hardener Weight per gallon at 24 to 26OC(75 to 79OF) Viscosity at 22 to 23OC(76 to 78F) Col or 8.0 pounds, min 4,003 cps Off-white 20,oo 2 12.5 pounds, mi n 2 y 003 y O00 cps, min metal 1 ic al irmi num 8.0 pou
13、nds mi n 4,000 cps Off-white 20,000 5 Test Method 4.6.2 4.6.3 4.6.1 4.6.2 4.6.3 4.6.1 3.3.1 Adhesive system properties. The adhesive system properties of Type I and Type II shall be as specified in Table II. 3 Licensed by Information Handling Servicest MIL-A-47073 BO 9997906 O108033 1 m M I L -A- 47
14、073( MI ) r Adhesive System Properti es Type I, Require- Type II, Require- Test Property mentS.- &_.ValuesL ments & Values Method Hardness 75 f 5 Barcol 70 2 10 Barcol 4.6.4 Tensile Shear Strength 2024 T3 Aluminum 3100 psi, min 2500 psi, min 4.6.5 adherend Tensile strength Flexural strength Compress
15、ive strength . Il 2300 psi, min I I Half-hard cold-rolled 2800 psi, min s tee1 adherend 6500 psi, min 5000 psi, min 4.6.6 15,000 psi, min 12,000 psi, min 4.6.7 18,000 psi, min 14,000 psi, min 4.6.8 3.4 Workmanship. The material furnished shall be uniform in quality and shall be free from impurities
16、and other defects that could adversely affect its use. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibi1it.y for Inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as other
17、wise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the speci
18、ficaion where such inspections are deemed necessary to assure supplies and services conform-to PreSCribed requirements. herein shall be classified as follows: 4.2 Classification of inspections. Inspections specified a. Preproduction inspections (see 4.4). b. Quality conformance inspections (see 4.5)
19、. Licensed by Information Handling Services. MIL-A-47073 80 m 7777906 0308034 3 MIL-A- 47073(Flf) 4.3 1nspec.tion lot. An inspection lot shall consist of one batch of adhesive manufactured under essentially uniform conditions and are offered for inspection at any one time. 4.4 Preproduction inspecti
20、on. 4.4.1 Preproduction sample inspections. Unless other- wise specified in the contract or purchase order, a sample of resin and hardener from the first lot manufactured under each contract or order shall be subjected to preproduction inspection. 4.4.2 Preproduction sam.plin.q and te,sting. One pin
21、t of resin and one pint of hardener shall be selected and subjected to the tests specified in Table III. Table III Preproduction Inspecticn I Exami nati on Requirement I or Test I Paragraph Weight per gallon Viscosity Color Hardness Tensile shear strength Tensile strength Flexural strength Compressi
22、ve strength Workmanshi p 3.3 3.3 3.3 3.3 3.3 3.3 33 3.3 3.4 Inspection Method Paragraph 4.6.2 4.6.3 4.6.1 4.6.4 4.6.5 4.6.6 4.6.7 4.6.8 4.6.1 4.4.3 Action in case of failure. No failures shall be allowed during the preproduction inspection. In case of failure, written approval from the procuring act
23、ivity shall be obtained prior to submittal of subsequent lots for testing. 4.5 Quality conformance inspection. All production lots of adhesive offered for acceptance hereunder shall be sub- jected to quality conformance inspections. 5 Licensed by Information Handling ServicesM I L - A - 4707 3 ( 1.1
24、 I ) 4.5.1 Qua.1 i t.y co.nformance sa-mpl i nq. Sampl i ng for vi sua1 examination shall be 100 percent of the lot. Failure of any sample to meet the requirements of 3.4 and Section 5 shall cause rejection of the sample. Sampling for all other examinations and tests shall be a representative sample
25、 of material selected at random. Failure of the sample to meet any other requirement of this specification shall cause rejection of the lot. 4.5.2 Procedure. Samples taken in accordance with 4.5.1 shall be subjected to the examinations and tests as specified in Table IV. Table IV r Quality Conforman
26、ce Inspection I Exami na ti on Requirement Inspection Method or Test Paragraph Paragraph . Visual examination 3.2, 3.4 and Section 5 4.6.1 Weight per gallon 3.3 4.6.2 4.6.3 4.6.1 Viscosity 3.3 Col or 3.3 Hardnes s 3.3 4.6.4 Tensile shear strength 3.3 4.6.5 2024 T3 Aluminum adherend 4.6 Inspection me
27、thods. 4.6.1 Visual examination. Visually examine samples specified in 4.5.1 to determine compliance with color requirement (see 3.3). Visually examine all containers in the lot to determine compliance with 3.2, 3.4, and Section 5. 4.6.2 Weight per gallon. Weight per gallon shall be determined in ac
28、cordance with ASTM D 1875. 4.6.3 Viscosity. Viscosity shall be determined in accordance with ASTM D 1084 with the following exception: A RVF Brookfield Vis.cosimeter operating at 22 to 24 degrees Celsius (C) (71.6 to 75.2 degrees Fahrenheit (F) shall be utilized as follows: 6 Licensed by Information
29、 Handling Services. MIL-A-47073 0 7997906 OLO03b 7 m M I L -A- 47073 (MI ) . Spindle Number Speed Plastic Resin 7 2 rpm Hardener 6 20 rpm 4.6.4 Hardness. Hardness shall be determined in accordance with ASTM D 2240 with the following exceptions: a. The mixture ratio shall be two parts by volume of pl
30、astic resin and one part by volume of hardener or three portions of plastic resin to one portion of hardener by weight. b. The cure schedule for this test shall be 66 degrees C (150 degrees F) for 4 hours. 4.6.5 Tensile shear strenqth. Tensile shear strength shall be determined in accordance with AS
31、TM D 1002. The pre- paration of test specimens shall be as follows: a. Degrease surface to the bonded with methyl ethyl ketone or equivalent. b. Clean surface with chroric acid solution at 66 to 77 degrees C (l3C to 170 degrees F) for 5 to 10 minutes. The clearing solution is prepared as follows: 10
32、 parts by weight sodium dichromate 50 parts by weight 96 percent sulfuric acid 340 parts by weight distilled water c. Rinse thoroughly with water and air dry. d. The metal shall be 1/16 x 1 x 4 inches. e. Overlap 1/2 inch and bond and cure as specified in 4.6.4. f. Determine shear strength using cro
33、ss head 4.6.6 Tensile strength. Tensile strength shall be speed of 9.950 inches per minute. determined in accordance with ASTM D 638 with exceptions as noted in 4.6.4. 4.6.7 Flexural strength. Flexural strength shall be determined in accordance with ASTM D 790 with exceptions as noted in 4.6.4. . Li
34、censed by Information Handling Services. MIL-A-47073 80 7777706 0308037 7 = MIL-A - 47073(MI) 4.6.8 Compressive strength. Compressive strength shall be determined in accordance with ASTM D 695 with exceptions as noted in 4.6.4. 5. PREPARATION FOR DELIVERY 5.1 Packaging and packing. Unless otherwise
35、specified, packaging and packing shall be Level C. 5-1.1 Level C Packaging. Material shall be packaged to afford adequate protection against deterioration and damage during shipment from the supply source to the first receiving acti vi ty . 5.1.2 Level C Packing. Packages shall be secured and packed
36、 in shipping containers in a manner to insure carrier acceptance and safe delivery at destination at the lowest transportation rating. Containers shall comply with Uniform Freight Classification Rules or National Motor Freight Rules as applicable. 5.2 Markin Each container shall be marked in accorda
37、nce = with MIL- 4 D- 2 . Marking shall inclu.de, but not be limited to, the following information: a. Manufactureps name and location. b Material grade name. c. Net weight or volume. d. Lot number, batch number, and date of manufacture. e. Shelf life or storage limitations. f. Number, title, and rev
38、ision letter of this specifi- g. Toxicity/Fire prevention cautions, if needed. h. Flash point. cation. 6. NOTES 6.1 Intended Use. This specification covers two types of plastic resin adhesives. 6.2 Ordering data. Procurement documents should specify, but not be limited to, the following information:
39、 a. Title, number and date of this specification. b. Whether a preproduction sample is required (see 3.1). 8 - Y 1 /c. - - i f . Licensed by Information Handling ServicesMIL-A-47073 80 7977706 O308038 O W - MIL-A- 47073(MI) c. Minimum lot size, if applicable. d. Place of delivery. e. Size of contain
40、er. f. Disposition of test data. 6.3 Supersession data. This specification includes the reauirements of Missile Interim Specification MIS-15296, dated 18 February 1965. Cus todi an : ARMY-MI . . Preparing Activity: Project No. 8040-AO64 ARMY - MI U. S GOVERNMENT PRINTING OfFICE: 1974-713- 154/5619 9 Licensed by Information Handling Services
