{"id":4654,"date":"2026-06-01T16:09:54","date_gmt":"2026-06-01T16:09:54","guid":{"rendered":"https:\/\/productionscrews.com\/nylon-screws\/"},"modified":"2026-06-01T16:10:05","modified_gmt":"2026-06-01T16:10:05","slug":"nylon-screws","status":"publish","type":"post","link":"https:\/\/productionscrews.com\/vi\/nylon-screws\/","title":{"rendered":"\u1ed0c v\u00edt nylon: H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00e1c lo\u1ea1i, k\u00edch th\u01b0\u1edbc & \u1ee9ng d\u1ee5ng (2026)"},"content":{"rendered":"

\u1ed0c v\u00edt nylon l\u00e0 c\u00e1c ch\u1ed1t kh\u00f4ng kim lo\u1ea1i \u0111\u01b0\u1ee3c gia c\u00f4ng t\u1eeb polyamide (PA66 ho\u1eb7c PA12) \u2014 nh\u1eb9, ho\u00e0n to\u00e0n ch\u1ed1ng \u0103n m\u00f2n, kh\u00f4ng d\u1eabn \u0111i\u1ec7n v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00f3a ch\u1ea5t \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft dung m\u00f4i, d\u1ea7u v\u00e0 axit y\u1ebfu.<\/strong><\/p>\n

B\u1ea1n \u0111ang l\u1eafp \u0111\u1eb7t m\u1ed9t b\u1ea3ng m\u1ea1ch PCB b\u00ean trong m\u1ed9t h\u1ed9p b\u1ea3o v\u1ec7 th\u1ec9nh tho\u1ea3ng b\u1ecb ng\u01b0ng t\u1ee5 h\u01a1i n\u01b0\u1edbc. B\u1ea1n ch\u1ecdn \u1ed1c v\u00edt inox \u2014 v\u00e0 s\u00e1u th\u00e1ng sau, \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a \u0111\u00e3 l\u00e0m h\u1ecfng c\u00e1c l\u1ed7 l\u1eafp v\u00e0 \u0111\u1ec3 l\u1ea1i v\u1ec7t tr\u00ean b\u1ea3ng m\u1ea1ch. M\u1ed9t con \u1ed1c nylon $0.08 s\u1ebd ng\u0103n ch\u1eb7n ho\u00e0n to\u00e0n s\u1ef1 c\u1ed1 n\u00e0y. K\u1ecbch b\u1ea3n n\u00e0y di\u1ec5n ra h\u00e0ng ng\u00e0y trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m \u0111i\u1ec7n t\u1eed, khoang thi\u1ebft b\u1ecb h\u00e0ng h\u1ea3i v\u00e0 d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m \u1edf m\u1ecdi ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u1eabn quen d\u00f9ng ch\u1ed1t kim lo\u1ea1i theo th\u00f3i quen.<\/p>\n

\u1ed0c v\u00edt nylon chi\u1ebfm m\u1ed9t v\u1ecb tr\u00ed ri\u00eang bi\u1ec7t, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng. Ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 thay th\u1ebf to\u00e0n di\u1ec7n cho th\u00e9p. Nh\u01b0ng trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng ph\u00f9 h\u1ee3p \u2014 \u0111\u1ed9 \u1ea9m cao, y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n, ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t, l\u1eafp r\u00e1p nh\u1ea1y c\u1ea3m v\u1ec1 tr\u1ecdng l\u01b0\u1ee3ng \u2014 kh\u00f4ng c\u00f3 ch\u1ed1t kim lo\u1ea1i n\u00e0o s\u00e1nh b\u1eb1ng. H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ecdi kh\u00eda c\u1ea1nh c\u1ee7a \u1ed1c v\u00edt nylon: c\u1ea5p v\u1eadt li\u1ec7u, lo\u1ea1i, k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n (h\u1ec7 m\u00e9t v\u00e0 h\u1ec7 inch), \u1ee9ng d\u1ee5ng trong ng\u00e0nh, ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t m\u00e0 h\u1ea7u h\u1ebft b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ec1u b\u1ecf qua.<\/p>\n

\"\u1ed1c<\/p>\n

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\u1ed0c v\u00edt nylon l\u00e0 g\u00ec?<\/h2>\n

\u1ed0c v\u00edt nylon l\u00e0 ch\u1ed1t ren \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb c\u00e1c polymer polyamide k\u1ef9 thu\u1eadt, cung c\u1ea5p \u0111\u1ed9 b\u1ec1n k\u00e9o t\u1eeb 60\u201385 MPa v\u00e0 nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c li\u00ean t\u1ee5c t\u1eeb -40\u00b0C \u0111\u1ebfn +120\u00b0C.<\/strong><\/p>\n

V\u1eadt li\u1ec7u n\u1ec1n quan tr\u1ecdng h\u01a1n nhi\u1ec1u so v\u1edbi nh\u1eefng g\u00ec ng\u01b0\u1eddi mua nh\u1eadn ra. \u201cNylon\u201d l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef th\u01b0\u01a1ng m\u1ea1i bao g\u1ed3m nhi\u1ec1u c\u1ea5p polyamide kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t ri\u00eang. Hai c\u1ea5p b\u1ea1n s\u1ebd th\u1ef1c s\u1ef1 g\u1eb7p \u1edf \u1ed1c v\u00edt nylon l\u00e0:<\/p>\n

PA66 so v\u1edbi PA12: V\u1eadt li\u1ec7u t\u1ea1o n\u00ean \u1ed1c v\u00edt<\/h3>\n

PA66 (Nylon 6,6)<\/strong> l\u00e0 c\u1ea5p ch\u1ee7 \u0111\u1ea1o cho \u1ed1c v\u00edt nylon v\u00e0 bu l\u00f4ng nylon. N\u00f3 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n (75\u201385 MPa), \u0111\u1ed9 c\u1ee9ng t\u1ed1t h\u01a1n v\u00e0 h\u1ea5p th\u1ee5 \u1ea9m th\u1ea5p h\u01a1n PA12. PA66 l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u, m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 b\u1ea5t c\u1ee9 n\u01a1i n\u00e0o c\u1ea7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc d\u01b0\u1edbi t\u1ea3i. Theo b\u00e0i vi\u1ebft v\u1ec1 polyamide tr\u00ean Wikipedia<\/a>, PA66 l\u00e0 m\u1ed9t trong nh\u1eefng polymer t\u1ed5ng h\u1ee3p \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi DuPont v\u00e0 v\u1eabn l\u00e0 ti\u00eau chu\u1ea9n ch\u1ed1t c\u00f4ng nghi\u1ec7p v\u00ec l\u00fd do ch\u00ednh \u0111\u00e1ng.<\/p>\n

PA12 (Nylon 12)<\/strong> h\u1ea5p th\u1ee5 \u00edt \u1ea9m h\u01a1n \u2014 kho\u1ea3ng 0,25% so v\u1edbi 1,5% c\u1ee7a PA66 khi b\u00e3o h\u00f2a \u2014 gi\u00fap n\u00f3 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc h\u01a1n trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt. N\u1ebfu \u1ed1c v\u00edt nylon c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng ng\u1eadp n\u01b0\u1edbc ho\u1eb7c th\u01b0\u1eddng xuy\u00ean \u01b0\u1edbt (l\u1ed7 xuy\u00ean t\u00e0u th\u1ee7y, thi\u1ebft b\u1ecb t\u01b0\u1edbi ti\u00eau ngo\u00e0i tr\u1eddi), PA12 x\u1ee9ng \u0111\u00e1ng v\u1edbi m\u1ee9c gi\u00e1 cao h\u01a1n m\u1ed9t ch\u00fat.<\/p>\n

C\u1ea3 hai c\u1ea5p \u0111\u1ec1u \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo ASTM D4066<\/a>, ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh cho nh\u1ef1a nylon \u00e9p phun, x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 nhi\u1ec7t t\u1ed1i thi\u1ec3u cho t\u1eebng lo\u1ea1i.<\/p>\n

So s\u00e1nh \u1ed1c v\u00edt nylon v\u00e0 \u1ed1c v\u00edt kim lo\u1ea1i: \u0110\u1ed1i \u0111\u1ea7u tr\u1ef1c ti\u1ebfp<\/h3>\n

So s\u00e1nh n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t chi\u1ec1u. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch \u1ed1c v\u00edt nylon so v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn kim lo\u1ea1i ph\u1ed5 bi\u1ebfn d\u1ef1a tr\u00ean c\u00e1c \u0111\u1eb7c t\u00ednh th\u1ef1c s\u1ef1 quy\u1ebft \u0111\u1ecbnh vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Thu\u1ed9c t\u00ednh<\/th>\n\u1ed0c v\u00edt nylon (PA66)<\/th>\nTh\u00e9p kh\u00f4ng g\u1ec9 (316)<\/th>\nTh\u00e9p m\u1ea1 k\u1ebdm<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td>\n60\u201385 MPa<\/td>\n520\u2013720 MPa<\/td>\n380\u2013520 MPa<\/td>\n<\/tr>\n
Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang (g\/cm\u00b3)<\/td>\n1.14<\/td>\n8.0<\/td>\n7.9<\/td>\n<\/tr>\n
Ch\u1ed1ng \u0103n m\u00f2n<\/td>\nXu\u1ea5t s\u1eafc (m\u1ecdi \u0111\u1ed9 \u1ea9m)<\/td>\nT\u1ed1t (ch\u1ed1ng n\u01b0\u1edbc mu\u1ed1i)<\/td>\nK\u00e9m (d\u1ec5 r\u1ec9 s\u00e9t)<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n<\/td>\nKh\u00f4ng d\u1eabn \u0111i\u1ec7n<\/td>\nD\u1eabn \u0111i\u1ec7n<\/td>\nD\u1eabn \u0111i\u1ec7n<\/td>\n<\/tr>\n
Nhi\u1ec7t \u0111\u1ed9 li\u00ean t\u1ee5c t\u1ed1i \u0111a<\/td>\n120\u00b0C<\/td>\n870\u00b0C<\/td>\n260\u00b0C<\/td>\n<\/tr>\n
Gi\u00e1 (cho 100 c\u00e1i, M4\u00d710)<\/td>\n$2\u20135<\/td>\n$12\u201322<\/td>\n$4\u20138<\/td>\n<\/tr>\n
T\u01b0\u01a1ng th\u00edch MRI\/RF<\/td>\n\u2705 C\u00f3<\/td>\n\u274c Kh\u00f4ng<\/td>\n\u274c Kh\u00f4ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0110i\u1ec1u quan tr\u1ecdng nh\u1ea5t t\u1eeb b\u1ea3ng \u0111\u00f3: v\u00edt nylon nh\u1eb9 h\u01a1n kho\u1ea3ng 7 l\u1ea7n so v\u1edbi v\u00edt th\u00e9p c\u00f9ng k\u00edch th\u01b0\u1edbc ren. Trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n t\u00ednh to\u00e1n t\u1eebng gam \u2014 gi\u00e1 \u0111\u1ee1 h\u00e0ng kh\u00f4ng, robot thi \u0111\u1ea5u, thi\u1ebft b\u1ecb y t\u1ebf c\u1ea7m tay \u2014 s\u1ef1 ch\u00eanh l\u1ec7ch n\u00e0y r\u1ea5t \u0111\u00e1ng k\u1ec3.<\/p>\n

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C\u00e1c lo\u1ea1i v\u00edt nylon<\/h2>\n

V\u00edt nylon c\u00f3 s\u00e1u ki\u1ec3u \u0111\u1ea7u ch\u00ednh, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p v\u1eb7n, ph\u00e2n b\u1ed5 t\u1ea3i tr\u1ecdng ho\u1eb7c y\u00eau c\u1ea7u l\u1eafp ch\u00ecm kh\u00e1c nhau.<\/strong><\/p>\n

Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i v\u00edt nylon \u0111\u1ec1u c\u00f3 th\u1ec3 thay th\u1ebf cho nhau. Vi\u1ec7c ch\u1ecdn sai lo\u1ea1i \u0111\u1ea7u v\u00edt s\u1ebd g\u00e2y ra v\u1ea5n \u0111\u1ec1: s\u1eed d\u1ee5ng \u0111\u1ea7u tr\u00f2n khi c\u1ea7n l\u1eafp \u00e2m \u0111\u1ea7u s\u1ebd t\u1ea1o ra ph\u1ea7n nh\u00f4 l\u00ean g\u00e2y c\u1ea3n tr\u1edf l\u1eafp r\u00e1p; v\u00edt v\u1eb7n tay trong c\u00e1c c\u1ee5m rung \u0111\u1ed9ng cao s\u1ebd t\u1ef1 l\u1ecfng ra. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a t\u1eebng lo\u1ea1i.<\/p>\n

\"\u1ed1c<\/p>\n

V\u00edt Nylon \u0110\u1ea7u Tr\u00f2n<\/h3>\n

V\u00edt nylon \u0111\u1ea7u tr\u00f2n l\u00e0 bi\u1ebfn th\u1ec3 ph\u1ed5 bi\u1ebfn nh\u1ea5t \u2014 \u0111\u1ea7u r\u1ed9ng, th\u1ea5p v\u1edbi b\u1ec1 m\u1eb7t ph\u1eb3ng gi\u00fap ph\u00e2n b\u1ed5 l\u1ef1c si\u1ebft tr\u00ean di\u1ec7n t\u00edch l\u1edbn h\u01a1n. C\u00e1c ki\u1ec3u r\u00e3nh v\u1eb7n bao g\u1ed3m Phillips, r\u00e3nh th\u1eb3ng v\u00e0 Torx. Trong l\u1eafp r\u00e1p \u0111i\u1ec7n t\u1eed, v\u00edt nylon \u0111\u1ea7u tr\u00f2n l\u00e0 l\u1ef1a ch\u1ecdn m\u1eb7c \u0111\u1ecbnh \u0111\u1ec3 g\u1eafn \u0111\u1ec7m PCB v\u00e0 c\u1ed1 \u0111\u1ecbnh khung m\u00e1y ch\u00ednh v\u00ec h\u00ecnh d\u1ea1ng \u0111\u1ea7u v\u00edt kh\u00f4ng t\u1eadp trung l\u1ef1c t\u1ea1i m\u1ed9t \u0111i\u1ec3m tr\u00ean v\u1eadt li\u1ec7u b\u1ea3ng FR4 d\u1ec5 v\u1ee1.<\/p>\n

D\u1ea3i k\u00edch th\u01b0\u1edbc: M2 \u0111\u1ebfn M8 (h\u1ec7 m\u00e9t), #2 \u0111\u1ebfn #10 (h\u1ec7 inch). Chi\u1ec1u d\u00e0i ti\u00eau chu\u1ea9n t\u1eeb 4mm \u0111\u1ebfn 50mm.<\/p>\n

V\u00edt Nylon \u0110\u1ea7u \u00c2m (\u0110\u1ea7u Ph\u1eb3ng)<\/h3>\n

Khi c\u1ea7n v\u00edt n\u1eb1m ngang b\u1eb1ng ho\u1eb7c th\u1ea5p h\u01a1n b\u1ec1 m\u1eb7t \u2014 t\u1ea5m v\u1ecf, n\u1eafp truy c\u1eadp, c\u1ee5m tr\u01b0\u1ee3t \u2014 v\u00edt nylon \u0111\u1ea7u \u00e2m l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p. G\u00f3c v\u00e1t 90\u00b0 ho\u1eb7c 82\u00b0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c l\u1ed7 v\u00e1t ti\u00eau chu\u1ea9n. Th\u01b0\u1eddng d\u00f9ng trong thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, n\u01a1i \u0111\u1ea7u v\u00edt nh\u00f4 ra t\u1ea1o v\u00f9ng ch\u1ebft v\u1ec7 sinh.<\/p>\n

V\u00edt Nylon \u0110\u1ea7u L\u1ee5c Gi\u00e1c (Bu l\u00f4ng Nylon)<\/h3>\n

V\u00edt nylon \u0111\u1ea7u l\u1ee5c gi\u00e1c (th\u01b0\u1eddng g\u1ecdi l\u00e0 bu l\u00f4ng nylon) c\u00f3 th\u1ec3 si\u1ebft b\u1eb1ng c\u1edd l\u00ea ho\u1eb7c tu\u00fdp ti\u00eau chu\u1ea9n \u0111\u1ec3 \u0111\u1ea1t m\u00f4-men xo\u1eafn cao h\u01a1n. D\u00f9ng trong c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 si\u1ebft tay kh\u00f4ng \u0111\u1ee7 ch\u1eafc \u2014 gi\u00e1 \u0111\u1ee1 \u0111\u1ed9ng c\u01a1 c\u00e1ch ly rung, c\u1ee5m t\u1ea5m v\u1edbi gio\u0103ng d\u00e0y. \u0110\u1ed9 b\u1ec1n k\u00e9o l\u00e0 y\u1ebfu t\u1ed1 gi\u1edbi h\u1ea1n: m\u1ed9t bu l\u00f4ng l\u1ee5c gi\u00e1c PA66 M6 ti\u00eau chu\u1ea9n ch\u1ecbu \u0111\u01b0\u1ee3c kho\u1ea3ng 1,2 kN tr\u01b0\u1edbc khi b\u1ecb bi\u1ebfn d\u1ea1ng. H\u00e3y thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p.<\/p>\n

V\u00edt Nylon V\u1eb7n Tay<\/h3>\n

V\u00edt nylon v\u1eb7n tay c\u00f3 \u0111\u1ea7u l\u1edbn d\u1ea1ng kh\u00eda ho\u1eb7c c\u00e1nh gi\u00fap si\u1ebft ch\u1eb7t b\u1eb1ng tay m\u00e0 kh\u00f4ng c\u1ea7n d\u1ee5ng c\u1ee5. Th\u01b0\u1eddng d\u00f9ng trong:
\n\u2013 Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed g\u1eafn gi\u00e1 \u0111\u1ee1 c\u1ea7n th\u00e1o l\u1eafp t\u1ea5m th\u01b0\u1eddng xuy\u00ean
\n\u2013 N\u1eafp pin tr\u00ean thi\u1ebft b\u1ecb c\u1ea7m tay
\n\u2013 V\u1ecf l\u1ecdc trong thi\u1ebft b\u1ecb ph\u00f2ng th\u00ed nghi\u1ec7m<\/p>\n

Ph\u1ea7n c\u00e1nh ho\u1eb7c \u0111\u1ea7u kh\u00eda \u0111\u01b0\u1ee3c \u0111\u00fac li\u1ec1n v\u00e0o v\u00edt nylon v\u1eb7n tay gi\u00fap lo\u1ea1i b\u1ecf nguy c\u01a1 m\u1ea5t d\u1ee5ng c\u1ee5 \u1edf v\u1ecb tr\u00ed kh\u00f3 ti\u1ebfp c\u1eadn.<\/p>\n

V\u00edt Nylon \u0110en<\/h3>\n

V\u00edt nylon \u0111en l\u00e0 lo\u1ea1i v\u00edt PA66 \u0111\u01b0\u1ee3c pha th\u00eam ch\u1ea5t m\u00e0u carbon \u0111en \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh tia UV v\u00e0 \u0111\u1ed3ng b\u1ed9 th\u1ea9m m\u1ef9 trong c\u00e1c v\u1ecf m\u00e0u t\u1ed1i. Ph\u1ee5 gia carbon \u0111en th\u1ef1c s\u1ef1 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV \u0111\u00e1ng k\u1ec3 \u2014 v\u00edt nylon t\u1ef1 nhi\u00ean kh\u00f4ng nhu\u1ed9m s\u1ebd ng\u1ea3 v\u00e0ng v\u00e0 gi\u00f2n trong v\u00f2ng 12\u201318 th\u00e1ng khi s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi; v\u00edt nylon \u0111en gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh ch\u1ea5t trong h\u01a1n 5 n\u0103m d\u01b0\u1edbi \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n ngo\u00e0i tr\u1eddi ho\u1eb7c d\u01b0\u1edbi \u00e1nh s\u00e1ng UV, lu\u00f4n ch\u1ecdn v\u00edt nylon \u0111en.<\/p>\n

V\u00edt Nylon \u0110\u1ecbnh V\u1ecb v\u00e0 C\u00e1c Bi\u1ebfn Th\u1ec3 C\u1ed1 \u0110\u1ecbnh<\/h3>\n

V\u00edt nylon \u0111\u1ecbnh v\u1ecb (\u0111\u1ea7u c\u1ed1c, \u0111\u1ea7u ph\u1eb3ng) \u0111\u01b0\u1ee3c d\u00f9ng chuy\u00ean bi\u1ec7t \u0111\u1ec3 kh\u00f3a tr\u1ee5c m\u00e0 kh\u00f4ng l\u00e0m x\u01b0\u1edbc \u2014 ph\u1ed5 bi\u1ebfn trong gi\u00e1 \u0111\u1ee1 thi\u1ebft b\u1ecb quang h\u1ecdc, tr\u1ee5c b\u00e1nh m\u00e3 h\u00f3a v\u00e0 c\u00e1c b\u1ec7 \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c, n\u01a1i v\u00edt \u0111\u1ecbnh v\u1ecb th\u00e9p s\u1ebd l\u00e0m x\u01b0\u1edbc b\u1ec1 m\u1eb7t tr\u1ee5c nh\u1ea1y c\u1ea3m. \u0110\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n c\u1ee7a v\u00edt nylon so v\u1edbi th\u00e9p l\u00e0 l\u1ee3i th\u1ebf, kh\u00f4ng ph\u1ea3i nh\u01b0\u1ee3c \u0111i\u1ec3m, trong c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y.<\/p>\n

\n

K\u00edch Th\u01b0\u1edbc v\u00e0 Ti\u00eau Chu\u1ea9n Ren V\u00edt Nylon<\/h2>\n

V\u00edt nylon ti\u00eau chu\u1ea9n c\u00f3 c\u00e1c k\u00edch th\u01b0\u1edbc h\u1ec7 m\u00e9t t\u1eeb M2 \u0111\u1ebfn M12 v\u00e0 h\u1ec7 inch t\u1eeb #2-56 \u0111\u1ebfn 3\/8\u2033-16, v\u1edbi b\u01b0\u1edbc ren theo ISO 68 (h\u1ec7 m\u00e9t) ho\u1eb7c ASME B1.1 (h\u1ec7 inch th\u1ed1ng nh\u1ea5t).<\/strong><\/p>\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn k\u00edch th\u01b0\u1edbc li\u00ean quan \u0111\u1ebfn ba bi\u1ebfn s\u1ed1: \u0111\u01b0\u1eddng k\u00ednh ren, b\u01b0\u1edbc ren v\u00e0 chi\u1ec1u d\u00e0i. Sai b\u1ea5t k\u1ef3 y\u1ebfu t\u1ed1 n\u00e0o c\u0169ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c v\u00edt b\u1ecb tu\u1ed9t ren khi ch\u1ecbu t\u1ea3i ho\u1eb7c b\u1ecb ch\u1ea1m \u0111\u00e1y tr\u01b0\u1edbc khi k\u1eb9p ch\u1eb7t.<\/p>\n

K\u00edch th\u01b0\u1edbc h\u1ec7 m\u00e9t (M2\u2013M12)<\/h3>\n

V\u00edt nh\u1ef1a h\u1ec7 m\u00e9t tu\u00e2n theo b\u01b0\u1edbc ren ti\u00eau chu\u1ea9n th\u00f4 theo ISO 68-1. C\u00e1c k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t trong s\u1ea3n xu\u1ea5t:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
K\u00edch th\u01b0\u1edbc ren<\/th>\nB\u01b0\u1edbc (mm)<\/th>\nPh\u1ea1m vi chi\u1ec1u d\u00e0i \u0111i\u1ec3n h\u00ecnh<\/th>\nC\u00e1c ki\u1ec3u \u0111\u1ea7u v\u1eb7n th\u00f4ng d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
M2<\/td>\n0.4<\/td>\n4\u201312mm<\/td>\n\u0110\u1ea7u bake, \u0111\u1ea7u d\u1eb9t<\/td>\n<\/tr>\n
M3<\/td>\n0.5<\/td>\n4\u201330mm<\/td>\n\u0110\u1ea7u bake, Torx, l\u1ee5c gi\u00e1c trong<\/td>\n<\/tr>\n
M4<\/td>\n0.7<\/td>\n6\u201340mm<\/td>\n\u0110\u1ea7u bake, Torx, l\u1ee5c gi\u00e1c trong<\/td>\n<\/tr>\n
M5<\/td>\n0.8<\/td>\n8\u201350mm<\/td>\nL\u1ee5c gi\u00e1c trong, Torx<\/td>\n<\/tr>\n
M6<\/td>\n1.0<\/td>\n10\u201360mm<\/td>\n\u0110\u1ea7u l\u1ee5c gi\u00e1c ngo\u00e0i, l\u1ee5c gi\u00e1c trong<\/td>\n<\/tr>\n
M8<\/td>\n1.25<\/td>\n12\u201380mm<\/td>\n\u0110\u1ea7u h\u00ecnh l\u1ee5c gi\u00e1c<\/td>\n<\/tr>\n
M10<\/td>\n1.5<\/td>\n16\u2013100mm<\/td>\n\u0110\u1ea7u h\u00ecnh l\u1ee5c gi\u00e1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

V\u00edt nh\u1ef1a M3 v\u00e0 M4 chi\u1ebfm kho\u1ea3ng 70% nhu c\u1ea7u v\u00edt nh\u1ef1a trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a. N\u1ebfu b\u1ea1n \u0111ang d\u1ef1 tr\u1eef cho x\u01b0\u1edfng l\u1eafp r\u00e1p PCB ho\u1eb7c gia c\u00f4ng b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, v\u00edt \u0111\u1ea7u tr\u00f2n bake M3\u00d78 v\u00e0 M4\u00d710 b\u1eb1ng PA66 s\u1ebd \u0111\u00e1p \u1ee9ng ph\u1ea7n l\u1edbn c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n

K\u00edch th\u01b0\u1edbc h\u1ec7 inch \/ SAE (1\/8 \u0111\u1ebfn 3\/8\u2033)<\/h3>\n

V\u00edt nh\u1ef1a h\u1ec7 inch tu\u00e2n theo ti\u00eau chu\u1ea9n ren th\u1ed1ng nh\u1ea5t ASME B1.1. C\u1ed5ng ti\u00eau chu\u1ea9n ASME<\/a> bao g\u1ed3m \u0111\u1ea7y \u0111\u1ee7 c\u00e1c b\u1ea3ng k\u00edch th\u01b0\u1edbc. C\u00e1c k\u00edch th\u01b0\u1edbc ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n\n\n\n\n\n\n
K\u00edch th\u01b0\u1edbc ren<\/th>\nS\u1ed1 v\u00f2ng ren tr\u00ean inch (UNC)<\/th>\nT\u01b0\u01a1ng \u0111\u01b0\u01a1ng h\u1ec7 m\u00e9t<\/th>\n<\/tr>\n<\/thead>\n
#4-40<\/td>\n40<\/td>\n~M3<\/td>\n<\/tr>\n
#6-32<\/td>\n32<\/td>\n~M3.5<\/td>\n<\/tr>\n
#8-32<\/td>\n32<\/td>\n~M4<\/td>\n<\/tr>\n
#10-32<\/td>\n32<\/td>\n~M5<\/td>\n<\/tr>\n
1\/4″-20<\/td>\n20<\/td>\n~M6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u1ed9t l\u01b0u \u00fd th\u1ef1c t\u1ebf m\u00e0 h\u1ea7u h\u1ebft c\u00e1c h\u01b0\u1edbng d\u1eabn mua h\u00e0ng \u0111\u1ec1u b\u1ecf qua: v\u00edt nylon c\u00f3 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t cao h\u01a1n kim lo\u1ea1i \u2014 kho\u1ea3ng 80\u2013100 \u03bcm\/m\u00b0C \u0111\u1ed1i v\u1edbi PA66 so v\u1edbi 11\u201313 \u03bcm\/m\u00b0C \u0111\u1ed1i v\u1edbi th\u00e9p. Trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p ph\u1ea3i ch\u1ecbu bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 l\u1edbn, m\u1ed9t v\u00edt nylon M4 s\u1ebd gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i kho\u1ea3ng 7 l\u1ea7n nhi\u1ec1u h\u01a1n so v\u1edbi v\u00edt th\u00e9p M4 c\u00f9ng lo\u1ea1i khi nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i 50\u00b0C. H\u00e3y thi\u1ebft k\u1ebf l\u1ef1c si\u1ebft tr\u01b0\u1edbc ph\u00f9 h\u1ee3p, n\u1ebfu kh\u00f4ng m\u1ed1i n\u1ed1i s\u1ebd l\u1ecfng khi n\u00f3ng v\u00e0 qu\u00e1 ch\u1eb7t khi l\u1ea1nh.<\/p>\n

\n

\u1ee8ng d\u1ee5ng c\u00f4ng nghi\u1ec7p c\u1ee7a v\u00edt nylon<\/h2>\n

V\u00edt nylon l\u00e0 l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean trong b\u1ed1n ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u1ed1t l\u00f5i: l\u1eafp r\u00e1p \u0111i\u1ec7n t\u1eed, thi\u1ebft b\u1ecb h\u00e0ng h\u1ea3i v\u00e0 ngo\u00e0i tr\u1eddi, ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf\/ph\u00f2ng th\u00ed nghi\u1ec7m \u2014 \u1edf b\u1ea5t c\u1ee9 n\u01a1i n\u00e0o m\u00e0 \u0103n m\u00f2n kim lo\u1ea1i, d\u1eabn \u0111i\u1ec7n ho\u1eb7c nhi\u1ec5m b\u1ea9n l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y h\u1ecfng h\u00f3c.<\/strong><\/p>\n

\u0110i\u1ec7n t\u1eed v\u00e0 L\u1eafp r\u00e1p PCB<\/h3>\n

\u0110\u00e2y l\u00e0 th\u1ecb tr\u01b0\u1eddng \u0111\u01a1n l\u1ebb l\u1edbn nh\u1ea5t cho v\u00edt nylon. V\u00edt nylon \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u1eafn PCB v\u00e0o khung m\u00e1y, c\u1ed1 \u0111\u1ecbnh ch\u00e2n \u0111\u1ee1, g\u1eafn bi\u1ebfn \u00e1p v\u00e0 b\u1eaft n\u1eafp c\u00e1c khoang \u0111i\u1ec7n \u00e1p cao \u2014 \u0111\u1eb7c bi\u1ec7t v\u00ec ch\u00fang kh\u00f4ng d\u1eabn \u0111i\u1ec7n. Trong c\u00e1c v\u1ecf b\u1ecdc \u0111i\u1ec7n \u00e1p cao (>1kV \u0111i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c), s\u1eed d\u1ee5ng v\u00edt kim lo\u1ea1i g\u1ea7n c\u00e1c thanh d\u1eabn \u0111i\u1ec7n l\u1ed9 ra l\u00e0 vi ph\u1ea1m an to\u00e0n; v\u00edt nylon v\u00e0 bu l\u00f4ng nylon v\u1edbi kho\u1ea3ng c\u00e1ch r\u00f2 th\u00edch h\u1ee3p l\u00e0 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt.<\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 ch\u00fang t\u00f4i th\u1ea5y trong l\u1eafp r\u00e1p \u0111i\u1ec7n t\u1eed l\u00e0 si\u1ebft qu\u00e1 ch\u1eb7t v\u00edt nylon tr\u00ean ch\u00e2n \u0111\u1ee1 PCB. M\u00f4-men xo\u1eafn \u0111\u00fang cho v\u00edt \u0111\u1ea7u tr\u00f2n M3 PA66 v\u00e0o ch\u00e2n \u0111\u1ee1 nylon l\u00e0 0,3\u20130,4 N\u00b7m. H\u1ea7u h\u1ebft c\u00f4ng nh\u00e2n l\u1eafp r\u00e1p, quen v\u1edbi v\u00edt kim lo\u1ea1i, th\u01b0\u1eddng si\u1ebft m\u1ea1nh g\u1ea5p 2\u20133 l\u1ea7n m\u1ee9c n\u00e0y \u2014 l\u00e0m tu\u00f4n \u0111\u1ea7u v\u00edt ho\u1eb7c n\u1ee9t b\u1ea3ng m\u1ea1ch. Tu\u1ed1c n\u01a1 v\u00edt gi\u1edbi h\u1ea1n m\u00f4-men xo\u1eafn l\u00e0 b\u1eaft bu\u1ed9c trong d\u00e2y chuy\u1ec1n l\u1eafp r\u00e1p PCB s\u1ed1 l\u01b0\u1ee3ng l\u1edbn s\u1eed d\u1ee5ng v\u00edt nylon.<\/p>\n

M\u00f4i tr\u01b0\u1eddng h\u00e0ng h\u1ea3i v\u00e0 ngo\u00e0i tr\u1eddi<\/h3>\n

N\u01b0\u1edbc mu\u1ed1i ph\u00e1 h\u1ee7y v\u00edt th\u00e9p m\u1ea1 k\u1ebdm ch\u1ec9 trong v\u00e0i tu\u1ea7n v\u00e0 t\u1ea5n c\u00f4ng c\u1ea3 th\u00e9p kh\u00f4ng g\u1ec9 trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0103n m\u00f2n khe h\u1edf. V\u00edt nylon mi\u1ec5n nhi\u1ec5m v\u1edbi s\u01b0\u01a1ng mu\u1ed1i, ho\u00e0n to\u00e0n ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u00e0ng h\u1ea3i, v\u00e0 th\u00edch h\u1ee3p cho c\u00e1c gi\u00e1 \u0111\u1ee1 c\u1ea3m bi\u1ebfn xuy\u00ean th\u00e2n t\u00e0u, v\u1ecf b\u01a1m n\u01b0\u1edbc \u0111\u00e1y, gi\u00e1 \u0111\u1ee1 thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb, v\u00e0 c\u00e1c t\u1ea5m \u1ed1p tr\u00ean m\u1ef1c n\u01b0\u1edbc.<\/p>\n

V\u00edt nylon m\u00e0u \u0111en l\u00e0 ti\u00eau chu\u1ea9n cho \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi tr\u00ean bi\u1ec3n nh\u1edd kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV. PA66 t\u1ef1 nhi\u00ean (m\u00e0u ng\u00e0) s\u1ebd b\u1ecb suy gi\u1ea3m trong v\u00f2ng 18 th\u00e1ng ti\u1ebfp x\u00fac v\u1edbi tia UV; v\u00edt nylon \u0111en c\u00f3 ch\u1ea5t \u1ed5n \u0111\u1ecbnh UV carbon black gi\u1eef nguy\u00ean t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc trong h\u01a1n 5 n\u0103m d\u01b0\u1edbi \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp, \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c b\u1edfi Quy tr\u00ecnh ki\u1ec3m tra th\u1eddi ti\u1ebft UV ASTM G154<\/a>.<\/p>\n

Ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf<\/h3>\n

V\u00edt nylon \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u FDA 21 CFR 177.1500 v\u1ec1 ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m gi\u00e1n ti\u1ebfp khi \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb nh\u1ef1a polyamide \u0111\u1ea1t chu\u1ea9n \u2014 ngh\u0129a l\u00e0 ch\u00fang c\u00f3 th\u1ec3 ti\u1ebfp x\u00fac h\u1ee3p ph\u00e1p v\u1edbi b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m trong thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn. Vi\u1ec7c kh\u00f4ng c\u00f3 nguy c\u01a1 nhi\u1ec5m b\u1ea9n kim lo\u1ea1i (kh\u00f4ng g\u1ec9 s\u00e9t, kh\u00f4ng c\u00f3 m\u1ea1t kim lo\u1ea1i do ma s\u00e1t) l\u00e0 l\u00fd do ch\u00ednh. L\u1ee3i \u00edch ph\u1ee5: v\u00edt nylon kh\u00f4ng l\u00e0m h\u1ecfng b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m khi th\u00e1o l\u1eafp, v\u00e0 ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1eb1ng m\u00e1y d\u00f2 kim lo\u1ea1i \u1edf m\u1ee9c nh\u1ea1y ph\u00f9 h\u1ee3p (b\u1ea3n th\u00e2n nylon kh\u00f4ng ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c, v\u00ec v\u1eady m\u1ed9t s\u1ed1 c\u01a1 s\u1edf th\u00eam bari sunfat \u2014 m\u00e1y d\u00f2 ch\u1ec9 lo\u1ea1i b\u1ecf c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i \u0111\u00e3 bi\u1ebft).<\/p>\n

Trong thi\u1ebft b\u1ecb y t\u1ebf v\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m, v\u00edt nylon \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb t\u01b0\u01a1ng th\u00edch MRI, n\u01a1i m\u1ecdi v\u1eadt li\u1ec7u s\u1eaft t\u1eeb \u0111\u1ec1u b\u1ecb c\u1ea5m, v\u00e0 trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p ph\u00f2ng s\u1ea1ch n\u01a1i c\u00e1c h\u1ea1t kim lo\u1ea1i do ma s\u00e1t l\u00e0 ngu\u1ed3n g\u00e2y nhi\u1ec5m b\u1ea9n.<\/p>\n

Robot v\u00e0 K\u1ef9 thu\u1eadt thi \u0111\u1ea5u<\/h3>\n

C\u1ed9ng \u0111\u1ed3ng robot \u2014 \u0111\u1eb7c bi\u1ec7t l\u00e0 robot thi \u0111\u1ea5u FRC v\u00e0 VEX \u2014 s\u1eed d\u1ee5ng nhi\u1ec1u v\u00edt nylon v\u00ec m\u1ed7i gam tr\u1ecdng l\u01b0\u1ee3ng v\u00edt \u0111\u1ec1u quan tr\u1ecdng. V\u1edbi m\u1eadt \u0111\u1ed9 kho\u1ea3ng 1,14 g\/cm\u00b3 so v\u1edbi th\u00e9p 7,9 g\/cm\u00b3, thay th\u1ebf 50 v\u00edt th\u00e9p M4\u00d710 b\u1eb1ng v\u00edt nylon t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ti\u1ebft ki\u1ec7m kho\u1ea3ng 28 gam. \u0110\u1ed1i v\u1edbi m\u1ed9t robot ph\u1ea3i gi\u1edbi h\u1ea1n tr\u1ecdng l\u01b0\u1ee3ng, \u0111i\u1ec1u n\u00e0y r\u1ea5t \u00fd ngh\u0129a. C\u00e1c V\u00edt nylon VEX ti\u00eau chu\u1ea9n IFI #8-32<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong robot thi \u0111\u1ea5u th\u1ef1c ch\u1ea5t l\u00e0 ti\u00eau chu\u1ea9n h\u00e0ng h\u00f3a cho to\u00e0n b\u1ed9 ph\u00e2n kh\u00fac.<\/p>\n

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C\u00e1ch Ch\u1ecdn \u1ed0c V\u00edt Nylon Ph\u00f9 H\u1ee3p<\/h2>\n

Ch\u1ecdn \u1ed1c v\u00edt nylon d\u1ef1a tr\u00ean b\u1ed1n ti\u00eau ch\u00ed theo th\u1ee9 t\u1ef1: y\u00eau c\u1ea7u t\u1ea3i tr\u1ecdng, d\u1ea3i nhi\u1ec7t \u0111\u1ed9, m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t v\u00e0 ki\u1ec3u \u0111\u1ea7u\/ki\u1ec3u v\u1eb7n ph\u00f9 h\u1ee3p v\u1edbi d\u1ee5ng c\u1ee5 l\u1eafp \u0111\u1eb7t c\u1ee7a b\u1ea1n.<\/strong><\/p>\n

H\u1ea7u h\u1ebft c\u00e1c sai s\u00f3t v\u1ec1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt x\u1ea3y ra v\u00ec ng\u01b0\u1eddi mua nh\u1ea3y ngay \u0111\u1ebfn k\u00edch th\u01b0\u1edbc m\u00e0 kh\u00f4ng \u0111i qua c\u00e2y quy\u1ebft \u0111\u1ecbnh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch ch\u1ecdn \u0111\u00fang.<\/p>\n

\"\u1ed1c<\/p>\n

B\u01b0\u1edbc 1: X\u00e1c Minh T\u1ea3i Tr\u1ecdng N\u1eb1m Trong Gi\u1edbi H\u1ea1n PA66<\/h3>\n

\u1ed0c v\u00edt nylon kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ed1t k\u1ebft c\u1ea5u. Tr\u01b0\u1edbc khi ch\u1ecdn \u1ed1c v\u00edt nylon, h\u00e3y t\u00ednh to\u00e1n t\u1ea3i tr\u1ecdng c\u1eaft v\u00e0 k\u00e9o tr\u00ean m\u1ed1i n\u1ed1i. Quy t\u1eafc chung: n\u1ebfu m\u1ed9t \u1ed1c v\u00edt nylon trong \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n ch\u1ecbu t\u1ea3i k\u00e9o li\u00ean t\u1ee5c tr\u00ean 100N, b\u1ea1n n\u00ean th\u00eam ch\u1ed1t, t\u0103ng k\u00edch th\u01b0\u1edbc ren ho\u1eb7c c\u00e2n nh\u1eafc l\u1ea1i xem nylon c\u00f3 ph\u1ea3i l\u00e0 v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p kh\u00f4ng.<\/p>\n

Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a \u1ed1c v\u00edt nylon PA66 \u1edf 23\u00b0C \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1:<\/p>\n\n\n\n\n\n\n\n\n\n
K\u00edch th\u01b0\u1edbc ren<\/th>\nT\u1ea3i K\u00e9o T\u1ed1i \u0110a (x\u1ea5p x\u1ec9)<\/th>\nT\u1ea3i C\u1eaft T\u1ed1i \u0110a (x\u1ea5p x\u1ec9)<\/th>\n<\/tr>\n<\/thead>\n
M3<\/td>\n120 N<\/td>\n70 N<\/td>\n<\/tr>\n
M4<\/td>\n220 N<\/td>\n130 N<\/td>\n<\/tr>\n
M5<\/td>\n350 N<\/td>\n200 N<\/td>\n<\/tr>\n
M6<\/td>\n500 N<\/td>\n290 N<\/td>\n<\/tr>\n
M8<\/td>\n900 N<\/td>\n520 N<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

L\u01b0u \u00fd: c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y gi\u1ea3m 30\u201340% \u1edf 80\u00b0C v\u00e0 50\u201360% \u1edf 110\u00b0C. N\u1ebfu \u1ed1c v\u00edt nylon c\u1ee7a b\u1ea1n s\u1ebd ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao (g\u1ea7n t\u1ea3n nhi\u1ec7t, b\u00ean trong v\u1ecf c\u00f3 t\u1ecfa nhi\u1ec7t), h\u00e3y gi\u1ea3m t\u1ea3i ph\u00f9 h\u1ee3p. Theo D\u1eef li\u1ec7u t\u1eeb Engineering ToolBox v\u1ec1 t\u00ednh ch\u1ea5t nhi\u1ec7t c\u1ee7a polyamide<\/a>\u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a PA66 gi\u1ea3m t\u1eeb kho\u1ea3ng 80 MPa \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng xu\u1ed1ng c\u00f2n kho\u1ea3ng 45 MPa \u1edf 100\u00b0C.<\/p>\n

B\u01b0\u1edbc 2: X\u00e1c nh\u1eadn d\u1ea3i nhi\u1ec7t \u0111\u1ed9<\/h3>\n

-40\u00b0C \u0111\u1ebfn +120\u00b0C \u0111\u00e1p \u1ee9ng ph\u1ea7n l\u1edbn c\u00e1c \u1ee9ng d\u1ee5ng. C\u00e1c tr\u01b0\u1eddng h\u1ee3p ngo\u1ea1i l\u1ec7 c\u1ea7n ch\u00fa \u00fd:<\/p>\n