1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS3801/5BAEROSPACEMATERIALSPECIFICATIONAMS3801/5 REV. B Issued 1984-04 Reaffirmed 2001-01 Re
5、vised 2011-06Superseding AMS3801/5A Cloth, Parachute, Meta-Aramid, Low Modulus 18.0(610) Weight, Basket Weave, Resin Treated RATIONALE This document is being edited to conform to existing formats and submitted for re-affirmation as a result of the 5 year review process. 1. SCOPE 1.1 Form This specif
6、ication covers one weight and one weave of low-modulus resin treated meta-aramid cloth. 1.2 Application Primarily for use in construction of parachutes. 1.3 Classification 18.0 ounces per square yard (610 g/m2) low-modulus meta-aramid cloth with basket weave and resin coating. 2. APPLICABLE DOCUMENT
7、S See AMS3801. 3. TECHNICAL REQUIREMENTS 3.1 Basic Specification The complete requirements for procuring the cloth described herein shall consist of this document and the latest issue of the basic specification, AMS3801. 3.2 Construction and Properties 3.2.1 Yarn Yarn used in weaving the cloth shall
8、 be a low-modulus meta-aramid with a carbonization (char) temperature not lower than 671 F (355 C). Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3801/5B Page 2 of 3 3.2.1.1 Denier and Filam
9、ent Count The yarn shall be 200 denier 15 and shall consist of 100 filaments 10. 3.2.1.2 Ply The yarn shall be 5 ply. 3.2.1.3 Twist The final ply of yarn shall be twisted 5.0 to 5.5 turns per inch (25.4 mm). 3.2.2 Cloth 3.2.2.1 Weave Shall be 3 by 4 basket (3 ends weaving as 1, 4 picks per shed). 3.
10、2.2.2 Color Shall be Sage Green 1565 as shown in FED-STD-595. The color shall be obtained by the use of melt spun solution dyed yarn. 3.2.2.3 pH Shall be 5.0 to 8.0, incl, determined on the water extract of the finished cloth. 3.2.2.4 Width The width, inclusive of selvage, shall be as ordered. 3.2.2
11、.5 Weight Shall not exceed 18.0 ounces per square yard (610 g/m2).3.2.2.6 Breaking Strength Breaking strength of the unaged cloth shall be not less than 950 pounds force per inch (166 370 N/m) in both warp and fill directions. Breaking strength after heat aging shall be not less than 85% of the unag
12、ed value in both the warp and fill directions. 3.2.2.7 Stiffness The cloth shall have a stiffness after resin treatment of 0.45 to 0.65 inch-pound (0.05 to 0.07 Nm) in the warp and 0.65 to 0.85 inch-pound (0.07 to 0.10 Nm) in the fill directions. 3.2.2.8 Thickness Shall not exceed 0.036 inch (0.91 m
13、m). 3.2.2.9 Count Warp ends shall be not less than 59 per inch (25.4 mm). Filling picks shall be not less than 60 per inch (25.4 mm). Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3801/5B Pa
14、ge 3 of 3 3.3 Length and Put-up The cloth shall be put up in rolls in accordance with AMS3801, paragraph 5.1. Each roll shall contain not less than 80 yards (73 m) nor more than 120 yards (110 m). Each roll shall contain not more than 2 pieces and each piece shall contain not less than 40 yards (37
15、m). 4. QUALITY ASSURANCE PROVISIONS See AMS3801. 5. PREPARATION FOR DELIVERY See AMS3801. 6. ACKNOWLEDGMENT See AMS3801. 7. REJECTIONS See AMS3801. 8. NOTES See AMS3801. PREPARED BY AMS COMMITTEE “P” Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
