1、I INCH-POUND I MIL-Pm46 19OA AMENDMENT 1 22 February 1999 PERFORMANCE SPECEICATION PREPREGS, WOVEN FAT3RIC, CARBON FBE distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-46 190A AMENDMENT 1 PAGE 7 4.3.1 Delete. Add as
2、new paragraph: “4.4.3 Tracer strands. An x-ray detectable glass tracer yarn shall be placed on 2.0 If: 0.25 inch centers in the warp direction and 6 If: 1 inch centers in the weR direction in each ply of material.” PAGE 8 4.5.6, line 2: After “3.5.7” insert “by using the test methods specified in ta
3、ble III”. Add as new paragraph: “4.5.7 Alignment. The supplier shall, as a minimum, determine the alignment at the start and end of each roll of impregnated fabric. Straightening of impregnated fabric is not permitted when measuring alignment. ,.A tenter frame to correct fiber alignment in impregnat
4、ed fhbric may be used.” 4.6.1: Delete. 4.7: Delete. 4.8, first sentence: Delete and substitute “The cured composite material shall be tested in accordance with ASTM D2344 and meet the requirements specified in 3.8.” PAGE 9 Add as new lines in paragraph 6.2: “h. Acceptable value for selvage width (se
5、e 3.4.2).” “i. Acceptable value for short beam shear strength (see 3.8).” Add as new paragraphs: “6.4.1 Tracer yards. MUCK 32.5 YO, 1 ounce, size 460 white x-ray detectable glass yarn, or an approved equivalent available from Owens Coming Fiberglas Company in Toledo, Ohio are acceptable for use in 3
6、.4.3.” “6.4.2 Carbon tows. A material consisting of carbon tows that have been woven and impregnated with a resin has been found acceptable to the Government in meeting the formulation requirement in 3.3.1 .” 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
7、 IHS-,-,-Custodians: Navy - AS Air Force - 11 hy“R Review activities: hy - AT, AV, IE Navy - SH Air Force - 13 DLA - DHPCMC-OF) MIL-PRF-46 190A AMENDMENT 1 Preparing activity: Army-MR (Project CMPS-0165) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
