Xin ch\u00e0o.<\/p>\n\n\n\n
Ng\u01b0\u1eddi ta n\u00f3i r\u1eb1ng \u1ee9ng su\u1ea5t b\u00ecnh th\u01b0\u1eddng c\u1ee7a l\u00f2 xo n\u00e9n nh\u1eadn t\u1ea3i tr\u1ecdng t\u0129nh ph\u1ea3i b\u1eb1ng 80% ho\u1eb7c \u00edt h\u01a1n \u1ee9ng su\u1ea5t t\u1ed1i \u0111a cho ph\u00e9p, nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u1eb7t m\u1ee9c \u1ee9ng su\u1ea5t t\u01b0\u01a1ng t\u1ef1 v\u1edbi l\u00f2 xo nh\u1eadn t\u1ea3i \u0111\u1ed9ng kh\u00f4ng? (\u1ee9ng su\u1ea5t hi\u1ec7u ch\u1ec9nh \u03c4max v\u00ec l\u00e0 t\u1ea3i tr\u1ecdng \u0111\u1ed9ng). Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec trong vi\u1ec7c thi\u1ebft l\u1eadp \u1ee9ng su\u1ea5t \u1edf m\u1ee9c n\u00e9n t\u1ed1i \u0111a v\u1ec1 gi\u00e1 tr\u1ecb g\u1ea7n v\u1edbi \u1ee9ng su\u1ea5t t\u1ed1i \u0111a cho ph\u00e9p (99,999\u2026%) v\u00e0 v\u01b0\u1ee3t qu\u00e1 gi\u00e1 tr\u1ecb khuy\u1ebfn ngh\u1ecb l\u00e0 80% kh\u00f4ng?<\/p>\n\n\n\n
C\u1ea3m \u01a1n c\u00e2u h\u1ecfi c\u1ee7a b\u1ea1n!
Khi ch\u1ecbu t\u1ea3i tr\u1ecdng l\u1eb7p l\u1ea1i, \u1ee9ng su\u1ea5t cho ph\u00e9p ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh c\u00f3 t\u00ednh \u0111\u1ebfn s\u1ef1 t\u1eadp trung \u1ee9ng su\u1ea5t, \u1ee9ng su\u1ea5t trung b\u00ecnh v\u00e0 bi\u00ean \u0111\u1ed9 \u1ee9ng su\u1ea5t c\u0169ng nh\u01b0 t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t.
\u0110\u1ec3 bi\u1ebft th\u00eam chi ti\u1ebft, vui l\u00f2ng tham kh\u1ea3o trang web b\u00ean d\u01b0\u1edbi c\u1ee7a ch\u00fang t\u00f4i, hy v\u1ecdng b\u1ea1n th\u1ea5y n\u00f3 h\u1eefu \u00edch! http:\/\/www.tokaibane.com\/tech\/big_coil_info.html<\/p>\n\n\n\n
Ngay c\u1ea3 v\u1edbi l\u00f2 xo n\u00e9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng t\u0129nh, \u1ee9ng su\u1ea5t \u1edf \u0111\u1ed9 cao quy \u0111\u1ecbnh v\u1eabn ph\u1ea3i b\u1eb1ng 80% ho\u1eb7c \u00edt h\u01a1n \u1ee9ng su\u1ea5t cho ph\u00e9p.<\/p>\n\n\n\n
N\u1ebfu \u1ee9ng su\u1ea5t n\u1eb1m trong \u1ee9ng su\u1ea5t xo\u1eafn cho ph\u00e9p (nh\u1ecf h\u01a1n 100%) v\u00e0 kh\u00f4ng g\u00e2y bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n, th\u00ec v\u1eabn n\u00ean s\u1eed d\u1ee5ng \u1ee9ng su\u1ea5t b\u1eb1ng 80% ho\u1eb7c \u00edt h\u01a1n \u1ee9ng su\u1ea5t cho ph\u00e9p v\u00ec l\u00fd do an to\u00e0n. Tuy nhi\u00ean, trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, \u1ee9ng su\u1ea5t \u1edf \u0111\u1ed9 cao t\u1ed1i thi\u1ec3u v\u01b0\u1ee3t qu\u00e1 \u1ee9ng su\u1ea5t cho ph\u00e9p.<\/p>\n\n\n\n
V\u00ec v\u1eady, c\u00e2u h\u1ecfi \u1edf \u0111\u00e2y l\u00e0: c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec ngay c\u1ea3 khi b\u1ea1n kh\u00f4ng n\u00e9n l\u00f2 xo t\u1edbi \u0111\u1ed9 cao khi b\u1ecb n\u00e9n t\u1ed1i \u0111a kh\u00f4ng?V\u00ed d\u1ee5. SUS304WPB, d=1,4, D=6,4, Na=4 Chi\u1ec1u cao t\u1ef1 do = 12,2<\/p>\n\n\n\n
Chi\u1ec1u cao l\u1eafp \u0111\u1eb7t (\u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh) = 8,8<\/p>\n\n\n\n
Chi\u1ec1u cao khi b\u1ecb n\u00e9n t\u1ed1i \u0111a = 7,7 (2 \u0111\u1ea7u l\u00f2 xo kh\u00e9p k\u00edn, m\u00e0i)<\/p>\n\n\n\n
V\u1edbi t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n tr\u00ean,
\u03c40 = 633,79N\/mm2> \u1ee8ng su\u1ea5t cho ph\u00e9p 624 N\/mm2 (x\u1ea5p x\u1ec9 780 x 0,8) v\u00e0 \u0111i\u1ec1u n\u00e0y l\u00e0 kh\u00f4ng n\u00ean \u0111\u00fang kh\u00f4ng?<\/p>\n\n\n\n
\u03c4 (t\u1ea1i chi\u1ec1u cao b\u1ecb n\u00e9n t\u1ed1i \u0111a) = 838,84 N\/mm2 > 624 N\/mm2 v\u00e0 \u0111i\u1ec1u n\u00e0y l\u00e0 kh\u00f4ng n\u00ean \u0111\u00fang kh\u00f4ng?<\/p>\n\n\n\n
Xin ch\u00e0o! <\/p>\n\n\n\n
Trong tr\u01b0\u1eddng h\u1ee3p t\u1ea3i t\u0129nh, \u1ee9ng su\u1ea5t ph\u1ea3i b\u1eb1ng 80% ho\u1eb7c \u00edt h\u01a1n \u1ee9ng su\u1ea5t cho ph\u00e9p. Ngo\u00e0i ra, kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec v\u1edbi th\u00f4ng s\u1ed1 k\u00edch th\u01b0\u1edbc m\u00e0 b\u1ea1n \u0111\u00e3 g\u1eedi cho ch\u00fang t\u00f4i.<\/p>\n\n\n\n
H\u00e3y \u0111\u1eb7t n\u00f3 \u1edf m\u1ee9c \u1ee9ng su\u1ea5t cho ph\u00e9p.<\/p>\n\n\n\n
* \u0110\u1ecbnh h\u00ecnh: \u1ede b\u01b0\u1edbc cu\u1ed1i c\u00f9ng c\u1ee7a qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o l\u00f2 xo, \u1ee9ng su\u1ea5t cao v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n \u0111\u00e0n h\u1ed3i c\u1ee7a v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c t\u00e1c d\u1ee5ng l\u00ean h\u01b0\u1edbng s\u1eed d\u1ee5ng \u0111\u1ed1i v\u1edbi l\u00f2 xo \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o h\u00ecnh v\u00e0 x\u1eed l\u00fd nhi\u1ec7t. \u0110\u00e2y l\u00e0 1 lo\u1ea1i gia c\u00f4ng bi\u1ebfn d\u1ea1ng d\u1ebbo.<\/p>\n","protected":false},"featured_media":0,"template":"","acf":[],"_links":{"self":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/cau-hoi\/43449"}],"collection":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/cau-hoi"}],"about":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/types\/cau-hoi"}],"wp:attachment":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/media?parent=43449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}