ARMY MIL-F-63463-1979 FILM INHIBITING ETHYL CELLULOSE《乙基纤维素抑制膜》.pdf

1、MIL-F-63LI63 73 W 7779706 0322q03 1 I MIL-F-63463(AR) 10 Septemm 1979 MILITARY SPECIFICATION FILM, INHIBITING, ETHYL CELLULOSE This specification is approved for use by the Missile Command, Department of the Army, and is available for use by all Departments and Agencies of the Department of Defense.

2、 1. SCOPE 1.1 Scope. This specification covers inhibiting film manufactured for use as the peripheral inhibiting wrap for rocket propellant grains (Ballistite type). 2. APPLICABLE DOCLEENTS 2.1 Issues of documents. The following documents, of the issue in effect on date of invitation for bids or req

3、uest for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-P-63462 - Plastic Molding and Extrusion Material, Ethyl Cellulose, for Rocket Grain Inhibiting Materials STANDARDS MILITARY MIL-STD-105 MIL-STD-129 - Marking for Shipnent and Storage MIL-

4、STD-286 - Propellant, Solid, Sampling, Examination and MIL-STD-1168 - Lot Numbering of Ammunition - Sampling Procedures and Tables for Inspection by At tribut es. Testing Beneficial comments (recommendations, additions, deletions) and any per- tinent data which may be of use in improving this docume

5、nt should be addressed to: Commander, U.S. Army Armament Research and Development Command, ATTN: DRDAR-LCA-OK, Dover, NJ 07801 by using the self-addressed at the end of this document, or by letter. . Standardization Document Improvement Proposal (DD Form 1426) appearing FSC 9330 Provided by IHSNot f

6、or ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-63463 73- 7777906 0322409 3 W MIL-F-63463 (AR) DRAWINGS U.S. Army Missile Command 9240825 - Tape, Inhibiting (Ethyl Cellulose) (Copies of specifications, standards, drawings, and publications required by contractors

7、in connection with specific procurement functions should be obtained 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. Unless otherwise indicated, the issue in e

8、ffect on date of invitation for bids or request for proposal shall apply. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 569 D 570 D 648 D 792 D 882 - Measuring the. Flow Properties of Thermoplastic Molding - Water Absorption of Plastics - Deflection Temperatures of Plastics under Flexural Load

9、 - Specific Gravity and Density of Plastics by Displacement - Tensile Properties of Thin Plastic Sheeting Mat er ials (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 3. REQUIREMENTS 3.1 Material. The material s

10、hall consist of ethyl cellulose and plasticizer(s) meeting the requirements of Type 1, MIL-P-63462, dyes or other colorants may be added where required to obtain colors specified by the procuring agency (see 3.6.2). Suitable 3.1.1 Plasticizer. The contractor shall supply the chemical name of each pl

11、asticizer used in the film, and samples shall be submitted to the procuring agency when requested. 3.1.2 Cellulose modification. The manufacturer shall provide the average percent of ethylation and the average viscosity (of a 5 percent solution of the flake in 60:40 tqluene - Formula 2B Alcohol solv

12、ent mixture) of the ethyl cellulose used in making the determinations. determinations shall be run in triplicate on each lot of flake and the ranges reported. Both Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-b3ib3 73 W 777770b 032205 5 W MI

13、L-F-63463 (AR) 3.2 Method of manufacture. The film shall be made by the continuous extrusion method, or equivalent, as approved by the procuring agency. 3.3 Rework. Rework or scrap may be used if the resulting reworked film meets the test requirements listed herein. Film manufactured from scrap or r

14、ework shall be from the same source and of the same basic formulation as the virgin materials, but need not be from the same factory run or batch. 3.4 Dimensions. All dimensions and limits shall be as selected and requested by the procuring activity from the schedule of sizes shown on Drawing No. 92

15、40825. All dimensional requirements are based on film conditioned and measured at 25 2 l0C (77 5 2OF) and 45 - + 5% relative humid it y. 3.5 Roll characteristics. 3.5.1 Core. The film shall be tightly wound on a multilayer paper core with dimensions as shown on Drawing No. 9240825. The core shall no

16、t be collapsed during or after the winding operation. 3.5.2 Tightness of roll. Film rolls shall be tightly wound to prevent telescoping of the roll during handling and shipping operations (see 4.4.1.3.1). 3.5.3 Splices. Two splices shall be permitted on the 1372 meter (4500 foot) length rolls. No sp

17、lices are permitted on the 457.2 meter (1500 foot) rolls (see 4.4.1.3.4). 3.5.4 Telescoped or crimped edges. The rolls of film shall be smoothly wound so that no film edges project or become crimped during winding or subsequent handling and packaging (see 4.4.1.3.6). 3.5.5 Time limits and storage co

18、nditions. Because of the nature of this material and the tendency for dimensions to change upon storage, the manufacturer shall only be held accountable for dimensions of his product for a period of 120 days after final slitting and winding of film rolls. Any other properties directly affected by di

19、mensional changes are also subject to this time limitation. In order to minimize dimensional changes of the sample chosen for testing, the samples shall be stored and shipped under conditions within the following limits: Temperature, 10 to 37.8OC (50 to 100F); Relative Humidity, 30 to 80%. The manuf

20、acturer will not be held accountable for the dimensions of his product under the 120 days limit imposed above after receipt of the product by the procuring agency unless the procuring agency stores the product under the temperature and humidity conditions listed above. Provided by IHSNot for ResaleN

21、o reproduction or networking permitted without license from IHS-,-,-flIL-F-63qb3 93 m 999990b OLKOb 7 - - - MIL-F-63463(AR) 3.6 Visual appearance. 3.6.1 Extrusion defects. 3.6.1.1 Fisheyes and gels. The film shall be relatively free from . fisheyes or gels when inspected as indicated in 4.4.1.4.1.1.

22、 3.6.1.2 Bubbles. No bubble or void in the body of the plastic into which a 1.59 millimeter (1/16 inch) diameter circle can be fitted is permissible. No elongated bubble or void with a length of 25.4 millimeters (1 inch) or more and a width of 0.25 millimeter (0.010 inch) or more is permissible. No

23、group or cluster of pinpoint bubbles or bubble streaks with a cluster grouping into which a circle of 6.35 millimeters (1/4 inch) diameter can be fitted is permissible (see 4.4.1.4.1.2). 3.6.1.3 Striations. No striations are permissible that permit the film thickness to vary more than 0.013 millimet

24、ers (0.0005 inch) from the thickness of the film surrounding the striation, as determined by gage measurements at the point of striation and on the surrounding film (see 4.4.1.4.1.3). 3.6.1.4 Laminations. The film shall not contain laminations that can be detected by the inspection method described

25、in 4.4.1.4.1.4. 3.6.2 Color. Unless otherwise specified by the procuring agency, the film shall be furnished uncolored. (See 3.6.2.1). When colored films are specified, the color shall match the sample furnished by the procuring agency. 3.6.2.1 Uncolored film. The natural color of the film shall be

26、a light clear yellow or amber. of excessive degradation of the plastic resin during processing. color of a single layer of film viewed against a white background under a daylight lighting shall be no darker than the color supplied by a combination of Kodak Color Compensating Filters CCO5Y and CClOY

27、when viewed under the same conditions as the film. (See 4.4.1.4.2). A dark.yellow or brown color is indicative The 3.6.3 Clarity. The film shall have sufficient clarity to permit the nspection of inhibited grains for inhibiting defects (see 4.4.1.4.3). 3.7 Physical properties. The film shall conform

28、 to the requirements listed in Table I. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Physical requirements. Property Requirement Tensile strength, minimum, MPa (psi) Elongation, minimum, % 34 (4,950) 28 Specific gravity 23OC/23OC 1.06 t

29、o 1.17 Water absorption, maximum, % 3.0 Soluble matter loss, maximum, % o. 2 O. 6 54 (130) 145-155 (293-311) 2 Weight loss on heating, mg/cm Deflection temperature, minimum, OC (OF) Flow Temperature, OC (OF) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH

30、S-,-,-used to inhibit propellant grain (Ballistite type) as described in 4.4.1.7. roll is likely to cause the film to wrap unsatisfactorily. The presence 0f“stretched or warped film sections within a 3.10 Adhesion, Inhibiting film shall adhere to the propellant grain with a bond strength of 5.85 MFa

31、 (850 psi) or greater, when tested as specified in 4.4.1.8. Army Ammunition Plant. This requirement is not applicable to Radford 3.11 Modified Taliani stability. When tested according to the procedure in Section 4.4.1.9, samples of the ethyl cellulose film and M-5 propellant shall not exhibit a rise

32、 in pressure greater than 200 mm corrected with EC blank value, and the ratio of the system used should be corrected to the volume basis (12 mi). 4. QUALITY ASSURANCE PROVISIONS 4.1 Lots. 4.1.1 First article inspection. Inhibiting film shall be manufactured from the same lot or batch of plastic gran

33、ules that was qualified for production. shall be conducted until requirements of the specification are met. The production shall be .on a continuous basis and testing 4.1.2 Production lot. Unless otherwise specified, a production lot shall consist of inhibiting film produced in a single continuous r

34、un or extrusion of film which the film rolls are cut or slit according to Drawing No. 924085 and prepared as an individual shipment. Maximum size of a production lot shall be limited to 27,216 kilograms (60,000 pounds) ,of material. When material lots or major operating conditions are changed, a new

35、 production lot shall be designated in accordance with the practice outlined in MIL-STD-105. 4.2 Inspection unit. For purpose of acceptance or rejection in accordance with this specification and MIL-STD-105, an inspection unit shall be a finished roll of film. 4.3 Sampling. 4.3.1 Sampling first arti

36、cle and periodic production acceptance tests. Fifty rolls shall be submitted as a preproduction lot and fifty rolls shall be selected at random during production of each 50,000-roll increment of a manufacturers contract production to be sent to a testing activity designated by the procuring agency f

37、or tests in accordance with Table II. in accordance with the rejection requirements of this table. Acceptance or rejection criteria of the lot tested shall be This Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-b3463 73 m 7779706 0322407 2 m M

38、IL-F-63463 (AR) paragraph is not applicable to production of inhibiting film at the Radford Army Ammunition Plant, for which the following will apply: two rolls of inhibiting film meet the requirements of Table III, they are released for production. The following shall be certified by the manufactur

39、er as meeting the requirements of this specification: When Material (3.1) Method of manufacture (3.2) Color (3.6.2) Splices within roll (3.5.3) Packaging (5.1) Marking of container (5.2.1) Length of film on roll (4.4.1.3.2) Copies of this certification shall be furnished to the Government Inspector

40、concerned and the procuring agency. Sample rolls may be tested for more than one requirement. Failure of the test roll to conform with any requirement previously evaluated does not present the testing of that roll for additional defects, 4.3.2 Sampling for production lot acceptance tests. The Govern

41、ment Inspector shall select film rolls for testing in accordance with MIL- STD-105, unless otherwise specified in the appropriate detail description of the tests involved. accepted as a production lot until the pilot lot has been tested and found to conform to this specification. Unless otherwise ap

42、proved, no film shall be 4.3.3 Inspection for production lots. Inspection for production lots may be made at the manufacturers plant by the Government Inspector, or at such other place as the procuring agency may specify. 4.4 Tests. 4.4.1 First article lot and periodic production lot tests. 4.4.1.1

43、Thickness. Unroll a section of film 7.62 meters (25 feet) or more,-measure and record the thickness of the unrolled section at twenty points selected at random along the film strip. of the twenty measurements. Select five places along the film strip and measure the thickness of the center and both e

44、dges at these five points across the face of the film. Grade any roll defective that does not meet the requirements of Drawing 9240825. Determine the average Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- VIL-F-63Yb3 73 m 777770b 0122G10 7 m 9 2 rl

45、 P .rl rl k m d O .rl ci U 1 a O k P U *rl a O ?i k al P a 9 ci O rl al rl U *rl ci 2 ci m k .rl Fr H H w E-c mcd ala I3 LI irid LI alalalalalaJalM *rl .rl .rl 9-l .r( .rl *rl cici cicici cicia UUUOUUUd I alalalalalalalal I q-Iwwwwwwa I alalalalalalalal I aaaaaaaa 3 3 3 3 3 3 3.2 al P 9rl ci U al w

46、al a alalalalalalal- al kkkkMkk0 0000000 g aaaaaaaci a kkkMkkkk k 00000000 o al al al al.3 Q) 0.3 a a a a-: a a-: kkMkcikkci oooocdoocd kkMkalkkal o o o oa o oa I Irlrlrlrlrlrlrlrl rlll-lrlrl I I 100000000 0100om4vivim rl vi m rlrlrlhlm 4- rlnim . . 04 m m m m m cs) m m m m m m m m m m m m m 44-G4vi

47、.vivivivi v;u)u)u)u)hcocnrlrl . 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.4.1.3.4 Splices. Hold the film roll with the flat side facing a ligh

48、t source and visually inspect by transmitted light. Any splice present will usually show up as a break or discontinuity in the film layers on the roll, and by a spot where the light enters between the edges of the splice. Any splices encountered during the use of the inhibiting film shall be reporte

49、d to the procuring agency and the inspector concerned. Any rolls found to contain splices in excess of the requirements of Drawing 9240825 shall be graded defective. 4.4.1.3.5 Width of roll. Place the film roll between two parallel plates and adjust the plates to fit against both faces of the roll. Measure the distance between the parallel plates, and grade as defective any roll that does