AIR FORCE MIL-T-6134 C-1971 TAPE TEXTILE NYLON PARACHUTE CONSTRUCTION《制造降落伞的聚酰胺纺织带》.pdf

1、PlIL-T-613qC 3 W 9779906 0375338 9 MILITARY SPECIFICATIOR i4IL-T-6134C 23 February 1971 SUPERSEDING 20 April i960 MIL-T-6134B and NL-T-5663A 12 November 1952 TUE , TEXTILE, XYLOX , PARACMTTE CO!STRUCTIOX This specification is mandatory for use by all Depart- ments and Agencies of the Department of D

2、efense. 1. SCOPE 1.1 Scope. This specification covers two tTfpes of nylon tape. 1.2 Classification. The tapes shall be of the folloving types, as specified (see 6.2): Type I - 525 pounds breaking strength Type II - 300 pounds breaking strength 2. APPLICABLE DOCLXEBTS 2.1 The following docm.ents of t

3、he issue in effect on date of invitation for bids or request for proposal, form a part of the specification to the extent specified herein. SPECIFICATIONS Fe der al FED-STD-191 Textile Test Methods Kilitary 11-w-43334 Webbing And Tape, Textile, Packaging And Packing Of STANDARDS Military MI L-STD-10

4、5 Sampling Procedures And Tables For Inspection By Attributes (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurenent functions should be obtained from the procuring activity or as directed by the contracting officer.) Provided b

5、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-bL34C 3 999990b 0375339 O MIL-T- 3kC 3. REQUIREMENTS 3.1 First article. commenced, a sample of the finished item shall be submitted or made ready for the contracting officer or his authorized representative

6、 for inspection as specified in 4.2. The approval of the preproduction sample authorizes the commencement of production but does not relieve the supplier of responsibility for compliance with all applicable provisions of this specification. The pre- production sample shall be manufactured by the sup

7、plier in the same facilities to be used for the manufacture of the production items. Unless otherwise spectfied (see 6.2) , before production is * 3.2 Materials. * 3.2.1 Yarns. The nyzon yarn used in the manufacture of the tape shall be a polyamide prepared from hexamethylene diamine and adipic acid

8、 or its deriva- tives. It shall have a minimum melting point of 442O Centigrade (C). * 3.2.2 Warp yarn. The warp yarn used for both types shall be 210-denier, high tenacity, bright filament nylon prior to dyeing. * 3.2.3 FillinR yarn. The filling yarn shall be as follows: a. Type I - Spun nxlon of 2

9、0/4 yarn number 55 percent (cotton system), The filling yarn breaking strength shall be a minimum of 4.75 pounds when tested as specified in 4.3.1. b. !J?y-pe II - Spun nylon of 60/2 yarn number I5 percent (cotton system). The filling yarn breaking strength shall be a minimum of 0.90 pounds when tes

10、ted as specified in 4.3.1. * 3.2.4 Ply twist. shall have a minimum twist of 2-1/2 turns per inch, and the filling yarn for type II tape shall have a minimum twist of i5 turns per inch. The warp and final ply of the filling yarn for type I tape * 3.3 Weave. The weave shall be as follows: a. Type I -

11、Woven in a tubular construction using a plain weave. The warp ends max weave 2 ends as 1, or 1 end as 1. b. !Py-pe II - Two-up, two-down herring-bone twill, with one reversal of the weave in the middle of the tape. The tape shall h8ve.a woven selvage. * 3.4 Construction and physical properties. The

12、webbing shall conform to the construction and physical properties of Table I when tested as specified in 4.4. * 3.5 Color. Unless otherwise specified by the procuring activity, the color of both types of Cape shall be natural except. for the identification yarns for type I. If color is specified, sp

13、ecific colorfastness and appropriate test methods shall be specified by the procuring activity. (See 6.2) * 3.5.1 Identification yarn for type I. One black identification yarn shall be interwoven down the center of one side of the tape. 3.5.1.1 Colorfastness of identification yarn for type I. The id

14、entification yarn shall have a colorfastness to crocking rating of at least “fair“ when tested as specified in Table II. 2 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I UIL-T-613qC 3 U 7777706 03753qO 7 Type 1 MIL-T-6134C TABLE I. Construction

15、and Physical Properties Type II Property Width, Inch 21/16 Yarn ply: Warp Filling Yarns (minimum) : Warp (total) Filling (per inch) Weight, oz/linear yard (maximum) Thickness, inch Breaking strength, pounds , minimum Elongation, percent, minimum 1 Singles 4 206 44 0.40 0.025-0.045 525 16 1 Singles 2

16、 104 58 O. 145 0.010-0.030 300 i4 TABLE II. Testing of Components Characteristic Warp Yarn: Nylon Identification Nylon Melting Point Luster Denier Tenacity Identification yarn, ! No roll shall contain more than two pieces, and no oiece shall 3.7 Identification ticket. Each roll of tape shall have an

17、 identification ticket attached to the roll, in accordance with KIL-W-h3331+. 3.8 Vorknansh. conform to the quality and grade of product established by this specification. The occurrence of defects shall Rot exceed the levels set by the acceptable quality levels. 4. QUALITY AGSU?JZCf lT?OVISICI: 4.1

18、 Responsibility for inspection. Unless other7,:ise syecified in the contract or purchase order, the supplier is responsible for tne perfomance of all inspection requirements 2s specified herein. the contract or order, the supplier rxy use his own or any other facilities suitable for the performwxe o

19、f the inspectior, requirencnts specified herein, unless disasproved by the Governcent. The GovernKent reserves the right to perforrr, any of the inspections set forth ir. the s;.ecificatioii where such inspections are deemd necessary to assure supplies and services conforn to prescribed requirerrent

20、s The finished tqe shall be Clem, evenly woven, an:here otherwise indicated hereinafter. 4.3.1 Component and material inspection. In accordance with h.1, above, components and materials shall be tester? ir, accordance xith all the require- ments of referenced specificatiocs, dravinft;s an,d stasCard

21、s, unless otherwise excluded, amended, modified or qualified in this specification, or applicable purchase document. subsidiary specifications, coriconent material listed in Table II shall be tested for characteristics specified and in accordance with the referenced test methods of FED-STD-191. The

22、lot size shall be expressed in sounds, and the Sample unit shall be 500 yards of nylon yarn. The lot shall be unacceptable if one or nore units fail to Keet any specified requirement. shall contain the individual values utilized in expressing the final result. The sample size shall be as follows: In

23、 addition to the quality assurance provisions of the Li1 test reports Lot Eize (Pounds) Sm.ple s* 800 or less 2 801 up to and including 22,000 3 22,001 a& over 5 4.3.2 shall be classified in accordance with 4.3.2.1 through 11.3.2.3. Examination of the end iten. Defects found during the exain.ination

24、 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-E!IL-T-6134C * 4.3.2.1 Yard-by-yard exmination. The required yardage of each roll shall be insaected on both sides and visual defects classified in accordance with a Table III. All defects foiuid sha

25、ll he counted regardless of their proximity one to another, except where two or more defects represent a single local condition of the tape or webbing in vhich case only the niore serious defect shall be counted. A continuous defect shall be counted as one defect for each warpwise yard or fraction t

26、hereof in :hich it occurs. examination shall be 1 linear yard. !?he sanple size shall be in accordance with inspection level II of MIL-UTD-105. be 0.4 major md 1.5 total defects (major and minor coi?bined) per 100 units (yards). approxhate equal nunber of yards shall be examined from each roll selec

27、ted. The number of rolls from vhich the sample is to be selected shall be in accordance with Table IV. The sanple unit for this The acceptable quality level shall The lot size shall be expressed in units of 1 yard each. An TABLE III. Classification of Defects Defect Abrasion lark - Broken or Ioissin

28、g end or picks Ccarse fillinn bar - Crease or wrinkle Cut, hole, or tear Edge cut, torn, or frayed Edge slack Shade bar Slack end Slub, slug, or gout Smash Spot, stain, or streak Tight end a - Cescript ion - liesulting in a weak glace X !bo or more continuous X Single Resrilting in increesed stiffne

29、ss or thickness of tape x Edge folded or rolled-hard, enbedded X X Edge slacked or poorly con- structed and extending l/b-inch or more along length of tape ZYxed filling L/ Two or more in the same length, jerked in betireen picks, or forming loops on surface &/ X Single, jerked in between picks , or

30、 forming loops on surface &/ More than twice the thickness of the yarn MY X Any I/ Any L/ 5 Kinor - X x I X X X x X Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-bL34C 83 = 77777Ob 0375343 2 T Defect E III, Classification o Tight pick or tigh

31、t filling Wavy or ridgy tape Weak, soft, or tender spot Fine or light filling bar Float Heavy place fiitchback, crack, open place Jerked-in-filling, slough-Off Kinks Knot Mispick, skips (hardness ) Wrong draw Yarns (filling) Defects ( Cont Description Resulting in rolling of tape Mill not flatten un

32、der manual pressure &I Clearly noticeable L/ Kultiple 112 inch or more in either warp or filling directions or single floating over more than 1 inch Kultiple less than 1/2 inch in either warp or filling directions or single floating over more thy 1/4 inch but pot more than 1 inch Noticeably stiffer

33、or thicker than a j oining unaffected tape Opening between adjoining picks or warpwise tension area over part o the width resulting in light and heavy places More than twice the thickness of the normal yarn :*fore than three in any 9-linear inches Llore than one knot in any 9-linear inches Single kn

34、ot with untrimed ends extending from syrface of tape Resulting in widthwise repeated floats more than l/h-inch long Extending for more than 9 inches %o yarns per shed - tjor X X X x X X X X X I_ Minor X x x X x X .- i/ Clearly visible at normal inspection distance (approximately 3 feet). 6 Provided

35、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Defect s Gross length of any roll - More than 2 yards less than gross length marked Length of roll - Beyond specified tolerances. Length of individual piece of tape - Less than 40 yards. Pieces per roll - More t

36、han 2 pieces. on ticket. TABLE IV. Overall and Length Examination, Sample Size Lot Size 2n Yards up to 1200 L/ 1201 up to and including 3200 3201 up fo and Zncluding 10,OO 10,001 up to and including 35,000 35,001 up to and including 150,000 150,001 and over Sample Size Maximum No. of Defects In roll

37、s Acceptable in Sample I 3 5 13 20 32 a 1/ If a lot contains less than 3 rolls, each roll in the lot shall be examlned. - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-bL39C 3 7777706 0375395 b MIL-T-6134C * 4.3.2.3.2 ExanUnation for total ya

38、rdage in sample. The lot shall be unaccept- able if the total of the actual gross lengths of rolls in the sample is less than the total of the gross lengths marked on the tickets. * 4.3.3 Examination of preparation for delivery requirements. An examination shall be made in accordance with the provis

39、ions of MIL-i-43334 to determine that packaging, packing and marking coinplies with the Section 5 requirernents of this specification. * 4.4 Testing of the end item. The methods of testing specified in FED-STD-191, wherever applicable, and as listed in Table V shall be followed. and chemical values

40、specified in Section 3 apply to the results of the determinations made on a sample unit for test purposes as specified in the applicable test methods. utilized in expressing the final result. shall be 10 linear yards. The lot shall be unacceptable if one or more units fail to .meet any require- ment

41、s specified. The physical N1 test reports shall contain the individual values The lot size shall be expressed in units of 1 yard. The sample unit for test purposes The sample size shall be as follows: Lot Size (Yards) -. Sample Size 800 or less 2 801 up to and including 22,000 3 22,001 and over 5 TA

42、BLE V. Test Methods Characteristic Requirement Paragraph Twist Weave Width Yarns per Inch Weight Thi ckne s s Breaking Strength and Elongat ion 3.2.4 3.3 Table I Table I Table I Table I Table I 4054 Visual r/ 5020 -5050 5040 5030 g/ 1+108.1 A/ NOTE: I 1/ One determination per sample unit and the res

43、ult reported as “pass or fail.“ c 2/ Except that a 6 ounce total load shall be used. 3/ Elongation will be calculated at the load specified in Table I. * 4.5 Certificate of compliance. Where certification of compliance are sub- mitted, the GovernKent reserves the right to check test such items to de

44、termine the validity of the certification. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-bL34C 83 m 7777706 037534b 8 - MIL-T-6134C 5. PREPARATION FOR DELIVZRY 5.1 Preservation, packaging, packing and marking. Preservation, packaging, packing

45、 and marking shall be in accordance with the applicable requirements of MIL-W-43334, as specified (see 6.2). 6. KOTES 6.1 Intended use. use in the manufacture of parachutes. bands for parachutes and type II for reinforcing bands on parachutes. The tape covered by this specification is intended for T

46、ype I is intended for use in skirt w 6.2 Orderinrr data. Procuremen documents should specify the following: a. Title, number, and date of this specification. b. Type (see 1.2). c. First article (see 3.1 and 4.2). d. Color and colorfastness and appropriate test methods, when desired (see 3.5). e. Pro

47、visions for deduction of defects (if any). f. Selection of a2plicable levels of preservation and packaging, and packing (see 5.1). * 6.3 Supersession data. Type II tape of this specificetion supersedes the tape covered by NIL-T-5663. * 64 The margins of this specification are marked with an asterisk

48、 to indicate This was done as a convenience only and the Govern- where changes (additions, modifications , corrections, deletions) from the previous issue were nade. ment assumes no liability whatsoever for any inaccuracies in these notations. Biaders and contractors are cautionedto evaluate the req

49、uirements of this document based on the entire content- irrespective of the marginal notations and relationship ta the last previous issue. Custodians: Army - GL Navy - AS. Air Force - 82 Review Activities : Navy - AS Air Force - 82 Army - GL Preparing Activity: Air Force - 82 &o ject NO. 8315-0198 U. S. GOVERNMENT PRINTING OFFICEi 1971-433-696/5104 Provided by IHSNot for ResaleNo reproduction or ne