{"id":1118,"date":"2026-10-28T14:03:44","date_gmt":"2026-10-28T06:03:44","guid":{"rendered":"https:\/\/yuannaitube.com\/pu-pipe-pneumatic-pipe-vs-tubing\/"},"modified":"2026-11-03T14:13:43","modified_gmt":"2026-11-03T06:13:43","slug":"ong-pu-ong-khi-nen-so-voi-ong-mem","status":"publish","type":"post","link":"https:\/\/yuannaitube.com\/vi\/pu-pipe-pneumatic-pipe-vs-tubing\/","title":{"rendered":"\u1ed0ng PU v\u00e0 \u1ed1ng kh\u00ed n\u00e9n: ph\u00e2n bi\u1ec7t \u1ed1ng c\u1ee9ng (pipe) v\u1edbi \u1ed1ng (tubing), k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1eb7t h\u00e0ng"},"content":{"rendered":"
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\u1ed0ng PU v\u00e0 \u1ed1ng kh\u00ed n\u00e9n: c\u00e2u tr\u1ea3 l\u1eddi ng\u1eafn g\u1ecdn<\/h2>\n

T\u1ea1i nhi\u1ec1u th\u1ecb tr\u01b0\u1eddng, \u201c\u1ed1ng PU\u201d v\u00e0 \u201c\u1ed1ng kh\u00ed n\u00e9n\u201d l\u00e0 nh\u1eefng t\u00ean g\u1ecdi th\u00f4ng d\u1ee5ng d\u00e0nh cho c\u00e1c lo\u1ea1i \u1ed1ng m\u1ec1m l\u00e0m t\u1eeb polyurethane (ho\u1eb7c nylon) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng kh\u00ed n\u00e9n. T\u00ean g\u1ecdi kh\u00f4ng quan tr\u1ecdng b\u1eb1ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. \u0110\u1ec3 \u0111\u1eb7t h\u00e0ng \u0111\u00fang lo\u1ea1i \u1ed1ng, h\u00e3y n\u00eau r\u00f5 ch\u1ea5t li\u1ec7u, \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD), \u0111\u01b0\u1eddng k\u00ednh trong (ID) v\u00e0 chi\u1ec1u d\u00e0i. M\u1ed9t \u201c\u1ed1ng PU 6 mm\u201d th\u01b0\u1eddng l\u00e0 \u1ed1ng c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i 6 mm, nh\u01b0ng h\u00e3y x\u00e1c nh\u1eadn l\u1ea1i \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 \u0111\u01b0\u1eddng k\u00ednh trong b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng.<\/p>\n<\/div>\n

Pipe, tube, tubing v\u00e0 hose: \u00fd ngh\u0129a c\u1ee7a c\u00e1c thu\u1eadt ng\u1eef n\u00e0y<\/h2>\n
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Word<\/th>\nTh\u01b0\u1eddng c\u00f3 ngh\u0129a l\u00e0<\/th>\nC\u1ea7n ghi r\u00f5 nh\u1eefng g\u00ec<\/th>\n<\/tr>\n<\/thead>\n
\u1ed0ng PU, \u1ed1ng kh\u00ed n\u00e9n<\/td>\n\u1ed0ng nh\u1ef1a d\u1ebbo d\u00f9ng cho \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn kh\u00ed, b\u00e1n theo cu\u1ed9n<\/td>\nCh\u1ea5t li\u1ec7u, \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) v\u00e0 \u0111\u01b0\u1eddng k\u00ednh trong (ID), chi\u1ec1u d\u00e0i, m\u00e0u s\u1eafc<\/td>\n<\/tr>\n
\u1ed0ng d\u1eabn, \u1ed1ng<\/td>\nC\u00f9ng lo\u1ea1i \u1ed1ng d\u1ebbo \u0111\u00f3, v\u1edbi thu\u1eadt ng\u1eef d\u00f9ng trong b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/td>\nS\u1ed1 hi\u1ec7u m\u1eabu, \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) v\u00e0 \u0111\u01b0\u1eddng k\u00ednh trong (ID), \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c<\/td>\n<\/tr>\n
\u1ed0ng<\/td>\n\u1ed0ng m\u1ec1m c\u00f3 k\u1ebft c\u1ea5u n\u1eb7ng h\u01a1n ho\u1eb7c \u0111\u01b0\u1ee3c gia c\u1ed1, th\u01b0\u1eddng c\u00f3 \u0111\u1ea7u n\u1ed1i c\u1ed1 \u0111\u1ecbnh \u1edf hai \u0111\u1ea7u<\/td>\n\u0110\u01b0\u1eddng k\u00ednh trong, \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c, \u0111\u1ea7u n\u1ed1i<\/td>\n<\/tr>\n
\u1ed0ng (c\u1ee9ng)<\/td>\n\u1ed0ng th\u00e9p, \u0111\u1ed3ng ho\u1eb7c PVC kh\u00f4ng \u0111\u01b0\u1ee3c cu\u1ed9n th\u00e0nh cu\u1ed9n<\/td>\nK\u00edch th\u01b0\u1edbc danh ngh\u0129a v\u00e0 c\u1ea5p \u00e1p su\u1ea5t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

V\u00ec \u201cpipe\u201d c\u0169ng c\u00f3 th\u1ec3 ch\u1ec9 \u1ed1ng c\u1ee9ng, h\u00e3y lu\u00f4n n\u00eau v\u1eadt li\u1ec7u v\u00e0 OD\/ID khi h\u1ecfi mua \u1ed1ng d\u1ebbo d\u1eabn kh\u00ed. T\u1eeb \u0111i\u1ec3n thu\u1eadt ng\u1eef v\u1ec1 \u1ed1ng<\/a> c\u1ee7a ch\u00fang t\u00f4i gi\u1ea3i th\u00edch t\u1eebng thu\u1eadt ng\u1eef.<\/p>\n

C\u00e1c k\u00edch th\u01b0\u1edbc \u1ed1ng PU \u0111\u01b0\u1ee3c b\u00e1n v\u1edbi t\u00ean g\u1ecdi \u201cPU pipe\u201d<\/h2>\n

D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c k\u00edch th\u01b0\u1edbc theo h\u1ec7 m\u00e9t trong b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u1ed1ng PU c\u1ee7a ch\u00fang t\u00f4i, \u0111\u01b0\u1ee3c ghi theo \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD)\/\u0111\u01b0\u1eddng k\u00ednh trong (ID) t\u00ednh b\u1eb1ng mm. T\u00ean g\u1ecdi c\u1ee7a \u1ed1ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) v\u00ec \u0111\u01b0\u1eddng k\u00ednh n\u00e0y ph\u1ea3i kh\u1edbp v\u1edbi \u0111\u1ea7u n\u1ed1i c\u1eafm.<\/p>\n

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T\u00ean th\u00f4ng d\u1ee5ng<\/th>\n\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i\/\u0111\u01b0\u1eddng k\u00ednh trong (mm)<\/th>\n\u0110\u1ed9 d\u00e0y th\u00e0nh (mm)<\/th>\n<\/tr>\n<\/thead>\n
\u1ed0ng PU 4 mm<\/td>\n4\/2.5<\/td>\n0.75<\/td>\n<\/tr>\n
\u1ed0ng PU \u0111\u01b0\u1eddng k\u00ednh 6 mm<\/td>\n6\/4<\/td>\n1.0<\/td>\n<\/tr>\n
\u1ed0ng PU \u0111\u01b0\u1eddng k\u00ednh 8 mm<\/td>\n8\/5, 8\/5.5, 8\/6<\/td>\n1.5, 1.25, 1.0<\/td>\n<\/tr>\n
\u1ed0ng PU \u0111\u01b0\u1eddng k\u00ednh 10 mm<\/td>\n10\/6.5, 10\/8<\/td>\n1.75, 1.0<\/td>\n<\/tr>\n
\u1ed0ng PU \u0111\u01b0\u1eddng k\u00ednh 12 mm<\/td>\n12\/8<\/td>\n2.0<\/td>\n<\/tr>\n
\u1ed0ng PU \u0111\u01b0\u1eddng k\u00ednh 14 mm<\/td>\n14\/10<\/td>\n2.0<\/td>\n<\/tr>\n
\u1ed0ng PU 16 mm<\/td>\n16\/12<\/td>\n2.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

C\u00e1c k\u00edch th\u01b0\u1edbc t\u00ednh theo inch (1\/8, 1\/4, 3\/8, 1\/2 v\u00e0 3\/4 in) l\u00e0 c\u00e1c k\u00edch th\u01b0\u1edbc ri\u00eang bi\u1ec7t. M\u1ed9t \u1ed1ng 6 mm kh\u00f4ng ph\u1ea3i l\u00e0 \u1ed1ng 1\/4 in; ch\u00fang ch\u00eanh l\u1ec7ch 0,35 mm. Xem C\u00e1c m\u1eabu \u1ed1ng PU<\/a> v\u00e0 B\u1ea3ng k\u00edch th\u01b0\u1edbc \u1ed1ng<\/a>.<\/p>\n

Nh\u1eefng th\u00f4ng tin c\u1ea7n ghi trong \u0111\u01a1n \u0111\u1eb7t h\u00e0ng \u1ed1ng PU<\/h2>\n
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  1. Ch\u1ea5t li\u1ec7u:<\/strong> PU ti\u00eau chu\u1ea9n, PU g\u1ed1c polyether<\/a> d\u00e0nh cho m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt, ho\u1eb7c nylon (PA6<\/a>, PA12<\/a>) khi \u00e1p su\u1ea5t quan tr\u1ecdng h\u01a1n \u0111\u1ed9 d\u1ebbo. Xem PU so v\u1edbi nylon<\/a>.<\/li>\n
  2. K\u00edch th\u01b0\u1edbc:<\/strong> \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i\/\u0111\u01b0\u1eddng k\u00ednh trong (OD\/ID) t\u00ednh b\u1eb1ng mm, v\u00ed d\u1ee5: 8\/5.<\/li>\n
  3. Chi\u1ec1u d\u00e0i:<\/strong> chi\u1ec1u d\u00e0i m\u1ed7i cu\u1ed9n ho\u1eb7c chi\u1ec1u d\u00e0i c\u1eaft, v\u00e0 s\u1ed1 l\u01b0\u1ee3ng.<\/li>\n
  4. M\u00e0u s\u1eafc:<\/strong> ti\u00eau chu\u1ea9n ho\u1eb7c m\u1eabu m\u00e0u tham chi\u1ebfu.<\/li>\n
  5. \u0110i\u1ec1u ki\u1ec7n:<\/strong> trung b\u00ecnh, \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c v\u00e0 nhi\u1ec7t \u0111\u1ed9.<\/li>\n<\/ol>\n

    Sau \u0111\u00f3, y\u00eau c\u1ea7u m\u1eabu<\/a> \u0111\u00fang k\u00edch th\u01b0\u1edbc, ho\u1eb7c g\u1eedi y\u00eau c\u1ea7u c\u1ee7a qu\u00fd kh\u00e1ch<\/a>.<\/p>\n

    C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n
    \n\u201cPU pipe\u201d c\u00f3 gi\u1ed1ng \u201cPU tubing\u201d kh\u00f4ng?<\/summary>\n
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    \u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng vi\u1ec7c s\u1eed d\u1ee5ng kh\u00ed n\u00e9n, \u0111\u00fang v\u1eady: c\u1ea3 hai t\u00ean g\u1ecdi n\u00e0y \u0111\u1ec1u d\u00f9ng \u0111\u1ec3 ch\u1ec9 \u1ed1ng polyurethane d\u1ebbo \u0111\u01b0\u1ee3c b\u00e1n d\u01b0\u1edbi d\u1ea1ng cu\u1ed9n. C\u00e1c b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt s\u1eed d\u1ee5ng thu\u1eadt ng\u1eef \u201c\u1ed1ng\u201d v\u00e0 cung c\u1ea5p c\u00e1c th\u00f4ng s\u1ed1 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) v\u00e0 \u0111\u01b0\u1eddng k\u00ednh trong (ID), \u0111\u00e2y l\u00e0 c\u00e1ch an to\u00e0n nh\u1ea5t \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh s\u1ea3n ph\u1ea9m n\u00e0y.<\/p>\n<\/div>\n<\/details>\n

    \n\u1ed0ng PU 6 mm c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) l\u00e0 6 mm hay \u0111\u01b0\u1eddng k\u00ednh trong (ID) l\u00e0 6 mm?<\/summary>\n
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    Th\u00f4ng th\u01b0\u1eddng \u0111\u00f3 l\u00e0 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD), t\u1ee9c l\u00e0 \u1ed1ng 6\/4. V\u00ec ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u00ean g\u1ecdi n\u00e0y theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau, n\u00ean h\u00e3y ghi c\u1ea3 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) v\u00e0 \u0111\u01b0\u1eddng k\u00ednh trong (ID) trong \u0111\u01a1n \u0111\u1eb7t h\u00e0ng c\u1ee7a b\u1ea1n, v\u00ed d\u1ee5: 6\/4 mm.<\/p>\n<\/div>\n<\/details>\n

    \nS\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa \u1ed1ng PU v\u00e0 \u1ed1ng nylon l\u00e0 g\u00ec?<\/summary>\n
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    PU c\u00f3 \u0111\u1ed9 d\u1ebbo dai cao h\u01a1n v\u00e0 c\u00f3 th\u1ec3 u\u1ed1n cong v\u1edbi b\u00e1n k\u00ednh nh\u1ecf h\u01a1n. Nylon (PA6, PA12) ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c cao h\u01a1n v\u1edbi c\u00f9ng k\u00edch th\u01b0\u1edbc. So s\u00e1nh c\u1ea3 hai trong B\u1ea3ng \u00e1p su\u1ea5t theo k\u00edch th\u01b0\u1edbc<\/a>.<\/p>\n<\/div>\n<\/details>\n

    \nLo\u1ea1i \u0111\u1ea7u n\u1ed1i n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi \u1ed1ng PU?<\/summary>\n
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    \u0110\u1ea7u n\u1ed1i nhanh d\u1ea1ng c\u1eafm (push-in) \u0111\u01b0\u1ee3c ch\u1ecdn theo OD c\u1ee7a \u1ed1ng: \u0111\u1ea7u n\u1ed1i 6 mm d\u00f9ng cho \u1ed1ng c\u00f3 OD 6 mm. Xem c\u00e1ch ch\u1ecdn \u1ed1ng ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ea7u n\u1ed1i<\/a>.<\/p>\n<\/div>\n<\/details>\n

    C\u00e1c h\u01b0\u1edbng d\u1eabn li\u00ean quan:<\/strong> \u1ed0ng nylon 12 (PA12)<\/a>.<\/p>\n

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    Ngu\u1ed3n v\u00e0 ph\u1ea1m vi<\/h2>\n