ARMY MIL-M-14545 D-1975 MAINTENANCE KIT COLD WEATHER INSULATED BOOT-PNEUMATIC MATTRESS《汽坐垫绝缘靴极冷天气修理包》.pdf

《ARMY MIL-M-14545 D-1975 MAINTENANCE KIT COLD WEATHER INSULATED BOOT-PNEUMATIC MATTRESS《汽坐垫绝缘靴极冷天气修理包》.pdf》由会员分享，可在线阅读，更多相关《ARMY MIL-M-14545 D-1975 MAINTENANCE KIT COLD WEATHER INSULATED BOOT-PNEUMATIC MATTRESS《汽坐垫绝缘靴极冷天气修理包》.pdf（16页珍藏版）》请在麦多课文档分享上搜索。

1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-7 MIL-M-L4595D 84 II 977970b 0378795 Ei NIL-STD-129 - Parking for Shipment and Storage. MIL-STD-417 - Rubber Compositions, Vulcanized General Purpose, Solid (Symbols and Tests). . DRAWING US ARBE NATICK

2、 DEVELOPMENT CENTER 5-7-87 - Maintenance Kit, Cold Weather Boot-Pneumatic (Figure 1 is a miniature reproduction of referenced drawing and is attached (Copies of specifications, standards, drawings, and publications required Mat tress for information only.) by suppliers in connection with specific pr

3、ocurement 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 a specific issue is identified, the issue in effect on date of invit

4、ation for bids or request for proposal shall apply: American Society for Testing Materials Standards D 1053 - Measuring Low-Temperature Stiffening of Rubber and Rubber-Like Materials by Means of a Torsional Wire Apparatus (Application fqr copies should be addressed to the American Society for Testin

5、g and Materials, 1916 Race Street, Philadelphia, PA 19103.) National Motor Freight Traffic Association, Inc., Agent National Motor Freight Classification (Application for copies should be addressed to the American Trucking Associations, Inc., Tariff Order Section, 1616 P Street, N.W., Washington, DC

6、 20036.) Uniform Classification Committee, Agent Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606,) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted withou

7、t license from IHS-,-,-MIL-M-14545D 4 777770b 0378746 b m PIIL-M- 145 45D (Technical society and technical association specifications and standards are generally available for reference from libraries. distributed among technical groups and using Federal agencies.) They are also 3, REQUIREMENTS * 3.

8、1 First article. When specified (see 6.2)., the supplier shall furnish a sample for first article inspection and approval (see 4.3 and 6.4). 3.2 Components. The maintenance kit shall consist of the following components assembled into a kit as specified in 3.4. (a) Rubber patch. (b) Tube of adhesive.

9、 (c) Strip of abrasive. (d) Instruction sheet. (e) Plastic film envelope. 3.3 Materials . 3.3.1 Patch. The patch shall be made of rubber and shall have a contact The contact side shall be capable of being activated The contact side of the patch shall be protected by a smooth, plain side and a face s

10、ide. by the solvent adhesive alone (i*e* without heat) to produce an adherent patch. cured side) shall have no film or protective barrier. patch shall be gray to black. Drawing 5-7-87 . backing as specified in 3.3.1.1. The face side of the patch (i.e., the The color of the Dimensions and beveling sh

11、all be as shown on 3.3.1.1 Backing. The backing for the contact side of the patch shall be slit and shall be aluminum foil, polyethylene or mylar. shall completely cover the contact side of the patch and result in a smooth, plain surface. removed in two pieces. The backing When tested as specified i

12、n 4.4.3, the backing shall be easily 3.3.2 Adhesive. The adhesive shall. be a natural rubber base, nonflammable The formulation shall be at the manufacturers discretion pro- solvent type. viding that the requirements in 3.3.2.1, 3.3.2.2 and 3.5 are met, At least 1.5 milliliters of the adhesive shall

13、 be contained in a collapsible aluminum tube. Heat sealing cement shall be applied only to the tube ends and dried before filling the tube with adhesive. The filled tube shall have both ends double folded, securely crimped and heat sealed immediately after filling. The maximum dimensions of the fill

14、ed and sealed tube shall be 1-1/2 inches by 1=1/2 inches by 1/8 inch. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-M-14545D 84 7777706 0378747 8 MIGM-14545D 3.3.2.1 Weight loss. The weight loss of the tubes of adhesive sh 11 be not greater

15、than 7 milligrams for any 1 tube and not greater than 28 milligrams for the 5 tubes combined when tested as specified in 4.4.3. 3.3.2.2 . Workability at low temperature. The adhesive shall be spreadable without undue difficulty when tested as specified in 4.4.3. 3.3.3 Abrasive. 120 mesh silicon carb

16、ide shall be suitably bonded to The abrasive both sides of a 24 mesh backing forming an abrasive strip. strip shall measure 1 (2 1/8) inch by 2 (5 1/8) inches (see 6.3) . 3.3.3.1 Abrasiveness. When tested as specified in 4.4.3, the abrasive strip shall produce a satisfactory abraded surface which is

17、 suitable for bonding. 3.3.3.2 Resistance to water. There shall be no appreciable loosening or loss of abrasive particles from the strip when tested as specified in 4.4.30 3.3.3.3 Workability at low temperature. When tested as specified in 4.4.3, the abrasive strip shall produce a satisfactory abrad

18、ed surface and shall show no loss in flexibility or abrasiveness; 3.3.4 Instruction sheet. The instructions shall be printed on white paper using elite type, or equal, and shall be folded and inserted into the polyethylene envelope so as to be legible in their entirety without opening the kit. The t

19、ext and fold of the instructions shall be as follows: INSTRUCTIONS MAINTENANCE KIT, COLD WEATWR BOOT-PNEUMATIC MATTRESS CAUTION: USE ONLY IN WELL-VENTILATED AREA 1. CLEAN AREA TO BE PATCHED. 2. BUFF THOROUGHLY WITH ENCLOSED ABRASIVE. 34 OPEN TUBE OF ADHESIVE BY TEARING OFF END, -l-l-e-=- (Fold here)

20、 40 APPLY COAT OF ADHESIVE TO BUFFED AREA, ALLOW TO DRY ABOUT 3 TO 5 MINUTES. 50 REMOVE BACKING FROM PATCH. DO NOT TOUCH FRESH SURFACE. .4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* MIL-M-L4545D 84 W 9977906 0378748 T MIL-M-14545D 6. APPLY PAT

21、CH. 7. PRESS FIRMLY W PLACE. (Manufacturers name or initials), Date manufactured (mnth and year) Shelf life expiration date (same month - 2 years later). 3.3.5 Plastic film envelope. 5-7-87 and shall conform to type II, finish, natural color, style 1, film thickness 0.002 inch of PPP-B-26. by heat s

22、ealing. 5-7-87 with (a) patch placed between abrasive sheet and tube of adhesive (b) abrasive sheet, patch and tube of adhesive placed within the single-folded instruction sheet, (c) printed matter on the outer faces of the folded instruction sheet, and (d) all seams of the envelope sealed. The enve

23、lope shall be as shown on Drawing All seams and closures shall be effected 3.4 Assembly of kit. The kit shaIl be asseuhled as shown on Drawing 3.5 Patch performance. 3.5.1 Resistance to creep. The average creep shall not exceed 1/8 inch when tested as specified in 4.4.3. 3.5.2 Flexibility at low tem

24、perature. 3.5.2.1 Bonded patch. The bonded patch shall not crack and shall not separate from the test sheet when tested as specified in 4.4.3. 3.5.2.2 -Unbonded patch. The highest temperature in degrees Fahrenheit for relatve torsional modulus of 10 (T10) shall be minus 65 when tested as specified i

25、n 4.4.3. 3.5.3 Accelerated aping. When tested as specified in 4.4.3, there shall be no cracking, checking or lifting of the rubber patch and there shall be no cracking or checking of the surrounding area of the test sheet into which the cement film extends for a short distance. applied and tested as

26、 specified in 4.4.3 shallbe.fully adhered (Le., without ifting of edge). The kits shall conform to the quality and grade of product established by this specification and the occurrence of defects shall not exceed the acceptable quality levels specified herein. 3.5.4 Pat incorrect; illegible; of impr

27、oper size, location, sequence or method of application. Any component missing, damaged or not as specified. (exterior and interior) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-14545D 84 0b 0378752 1 MIIrl414545D o U o al U U rl a a w I4 4 H

28、 a ? O I m I 34 rl . “! ? U FI . “1 m m . o O rl U .r( dl m f al ? rl II I I w- m w rl w w m II I I w w w X “! “! ? U “1 “! m m g rl U a ? 1 ? U “f 1 ? U m m ? U rl 1 m m 3 Y U a al ? rl m e4 m m m e . W O m al ? d ta 4i W O Y al u 3 111 mmm 34x34 111 553 ? UUU ? ? mmm m 9 P; IO I r-l Mi w II I ww w

29、 ?Y ? Vim *e ?“f “1. ? mm al & 7 U al al U 2 t Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-fl-L4545D 4 W 7797706 0378753 3 MZL-M-14545D 4.5 Tests. 4.5.1 Removal of backing from patch. from the patch. removed. The backing shall be removed It

30、 shall be noted whether the backing can be readily 4.5.2 Adhesive. 4.5.2.1 Weight loss. Five sealed tubes of adhesive each shall be weighed to the nearest one tenth of a milligram. stand open to the air at 75“ 5 5F for seven days. this period, each specimen shall be reweighed and the weight loss det

31、ermined. The specimens shall be allowed to At the expiration of 4.5.2.2 Workability at low temperature. When performing the test speci- fied in 4.5.7, it shall be noted whether the adhesive can be spread without undue difficulty . - 4.5.3 Abrasive strip. 4.5.3.1 Abrasiveness. When the adherend test

32、sheet is abraded as speci- fied In 4.5.4.3, the abraded area shall be visually examined. 4.5.3.2 .Resistance to water. An &rasive strip from one of the kits used in 4.5.1 and 4.5.2.1 shall be immersed in water at 75“ 2 5F for 10 minutes. Upon removal from the water, the strip shall be blotted lightl

33、y and then visually examined for loosening or loss of abrasive particles. 4.5.3.3 Workability at low temperature. When performing the test speci- fied in 4.5.7, any decrease in the flexibility or abrasiveness of the strip shall be noted. 4.5.4 Resistance to creep. 4.5.4.1 Test materials. (a) Adheren

34、d test sheet. The sheet shall be a rubber compoimd conforming to the requirements for type, class and grade RN520. of MIL-STD-417 and Mu-R-3065. It shall be 0,075 2 0.010 inch thick and shall haveother dimensions as sham on Drawing 5-7-87. Cellulose tape, 0.003 inch thick, commercial grade, pressure

35、 sensitive. (b) (c) Abrasive strip (kit component). (d) Adhesive (kit component). 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.5.4.4 Test procedure. 4.5.4.4.1 One hour after bonding, After one hour conditioning at 50 percent relative humidity

36、 (i 4 percent) and at a temperature of 75O 5 SF, test specimens shall be suspended at this temperature and humidity as shown on Drawing 5-7-87 using any suitable horizontal support for securing the long end of each test specimen and any suitable method of affixing 3 ounces of weight (including the w

37、eight holder) to the free end of each patch strip. The specimens shall be so arranged as to hang vertically and freely without twist:. Each weight shall be allowed to hang thus for 24 hours after which, without removing the weights, the distance of separation of the patch strip shall be measured. sh

38、all be made from the cellulose tape edge to the pont of separation. The five measurements shall be averaged, The measurement 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-fl-14545D 84 I 77777OL 0378755 7 W PfIL-M-14545D 4.5.4.4.2 ne day aft

39、er bonding. Five specimens shall be tested as described in 4.5.4.4.1 except that tests shall be commenced after the bond has cured (at 75 f 5P) for 24 hours and 5 ounces of weight (including the weight and ho1der)shall be affixed to the free end of each patch strip. 4.5.4.4,3 After heat aging of kit

40、s. Five specimens shall be tested as described in 4.5.4.4.1, except that the specimens shall be prepared from kits which have been maintained at 158 L 2F for 7 days in a circulating air oven and then conditioned at 75“ 2 5F for 4 hours. 4,5.5 Flexibility at low temperature. 4.5.5.1 Bonded patch. A p

41、atch shall be applied to the adherend test sheet, accordinn to kit instructions, at 75 + SFI The bonded patch shall be allowed to cure-at 75 2 5F for 72 hours, thh exposed to a temperature of minus 65 5 5F, for 4 hours. portion shall be bent, patch outward, over a 1/2 inch diameter mandrel, patch sh

42、all be examined for cracking and lifting. While at this temperature, the b+ded The 4.5.5,2 Unbonded patch. The flexibility of the unbonded patch shall be determined by ASTM Method D 1053, except that the test specimens shall be cut from finished patches and the thickness requirement shall not apply.

43、 The heat transfer medium shall be methyl alcohol and the test shall be run over the full temperature range. 4.5.6 Accelerated aging of patched area. An adherend test sheet shall be wrapped snugly around a 1 inch diameter mandrel &d the free ends clamped togther, the mandrel according to kit instruc

44、tions. The applied patches shall be allowed to stand in open air at 75 2 SF for two days, placed in a cir- culating air oven at 158 5 5F, for seven days and then removed from the oven. for checking and cracking of the surfaces and for lifting of the patch at the edge. Three patches shall be applied

45、to the test sheet in a line along Each patch and its adJacent area on the test sheet shall be examined 4.5,7 Patch appUcation at low temperature. An adherend test sheet shall Se snugly wrapped around a 1 inch diameter mandrel and the free ends clamped together. for 4 hours at minus 200 5 3F. Without

46、 being removed from this temperature, the 3 patches shall be applied to the test sheet in a line alongthe mandrel according to Ut instructions, except that the adhesive shall be allowed to dry 3 minutes before applying the first patch, 6 minutes for the second patch and 10 minutes for the third patc

47、h. for 30 minutes. shall be examined for lifting of the edges. The assembly and 3 maintenance kits shall be conditioned This assembly shall be further conditioned Without being removed from this temperature, the patches 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without

48、license from IHS-,-,-accordance with method III, waterproofed in accordance with method V, and reinforced as specified in the appendix of PPP-B-636. * 5.2,2 Level B. Four thousand maintenauce kits, packaged as specified in 5.1, shall be packed in a fiberboard shipping container conforming to style R

49、SC, type CE, (variety SW) or SF, class domestic, grade 275 of PPP-B-636, Level A packages shallbe-packed flat, two in length, one in width and five in depth within a shipping container. Inside dimensions of each shipping container shall approximate 21-3/4 inches in length, 20-1/2 inches in width and 11 inches in depth. Each