{"id":8871,"date":"2025-10-03T10:22:47","date_gmt":"2025-10-03T10:22:47","guid":{"rendered":"https:\/\/www.jymachinetech.com\/?p=8871"},"modified":"2025-10-18T08:05:43","modified_gmt":"2025-10-18T08:05:43","slug":"shrink-wrapping-guide-2025-technical-analysis-for-engineers","status":"publish","type":"post","link":"https:\/\/www.jymachinetech.com\/vi\/shrink-wrapping-guide-2025-technical-analysis-for-engineers\/","title":{"rendered":"H\u01b0\u1edbng D\u1eabn G\u00f3i Co 2025: Ph\u00e2n T\u00edch K\u1ef9 Thu\u1eadt D\u00e0nh Cho K\u1ef9 S\u01b0"},"content":{"rendered":"
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\u0110\u00f3ng g\u00f3i b\u1eb1ng m\u00e0ng co cho Bao b\u00ec K\u1eb9o: Ph\u00e2n t\u00edch k\u1ef9 thu\u1eadt v\u1ec1 v\u1eadt li\u1ec7u, quy tr\u00ecnh v\u00e0 t\u1ed1i \u01b0u h\u00f3a<\/h2>\n

\"H\u01b0\u1edbng<\/a><\/p>\n

Bao b\u00ec k\u1eb9o c\u00f3 th\u1ec3 tr\u00f4ng gi\u1ed1ng nh\u01b0 m\u1ed9t b\u01b0\u1edbc ho\u00e0n thi\u1ec7n \u0111\u01a1n gi\u1ea3n tr\u00ean d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. Nh\u01b0ng \u0111\u1ed1i v\u1edbi c\u00e1c k\u1ef9 s\u01b0 \u0111\u00f3ng g\u00f3i v\u00e0 qu\u1ea3n l\u00fd v\u1eadn h\u00e0nh, \u0111\u00f3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh k\u1ef9 thu\u1eadt cao. N\u00f3 li\u00ean quan \u0111\u1ebfn khoa h\u1ecdc polyme, nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc, k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed v\u00e0 an to\u00e0n th\u1ef1c ph\u1ea9m. M\u1ed9t bao b\u00ec ho\u00e0n h\u1ea3o kh\u00f4ng ph\u1ea3i l\u00e0 do may m\u1eafn\u2014\u0111\u00f3 l\u00e0 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c, c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 r\u00f5 r\u00e0ng, \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111i xa h\u01a1n c\u00e1c gi\u1ea3i th\u00edch b\u1ec1 m\u1eb7t. B\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n, khung k\u1ef9 thu\u1eadt \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i k\u1eb9o<\/a>gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c s\u1ea3n xu\u1ea5t, v\u00e0 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean d\u1eef li\u1ec7u \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t v\u1eadn h\u00e0nh t\u1ed1i \u0111a.<\/p>\n

Ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o ba th\u00e0nh ph\u1ea7n quan tr\u1ecdng: khoa h\u1ecdc v\u1eadt li\u1ec7u<\/strong>, k\u1ef9 thu\u1eadt vi\u00ean m\u00e1y m\u00f3c<\/strong>, v\u00e0 t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh<\/strong>Th\u00e0nh th\u1ea1o c\u00e1c l\u0129nh v\u1ef1c n\u00e0y cho ph\u00e9p b\u1ea1n bi\u1ebfn m\u1ed9t s\u1ea3n ph\u1ea9m ti\u00eau chu\u1ea9n d\u00e2y k\u1eb9o th\u00e0nh d\u00f2ng hi\u1ec7u qu\u1ea3 cao<\/a>ho\u1ea1t \u0111\u1ed9ng c\u1ea1nh tranh.<\/p>\n

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Khoa h\u1ecdc v\u1ec1 c\u00e1c lo\u1ea1i phim b\u1ecdc k\u1eb9o<\/h2>\n

Hi\u1ec3u bi\u1ebft v\u1ec1 v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc c\u1ee7a m\u00e0ng co l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. C\u00e1c lo\u1ea1i phim \u0111\u00f3ng g\u00f3i k\u1eb9o kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00e9p thu\u1eadt\u2014ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf k\u1ef9 l\u01b0\u1ee1ng<\/a> \u0111\u1ec3 h\u00e0nh x\u1eed d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u00e1p l\u1ef1c.<\/p>\n

H\u01b0\u1edbng \u0110\u1ecbnh Tinh Th\u1ec3 Trong C\u00e1c M\u00e0ng K\u1eb9o<\/h3>\n

C\u00e1c m\u00e0ng nh\u1ef1a \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c chu\u1ed7i polymer d\u00e0i. Trong tr\u1ea1ng th\u00e1i v\u00f4 \u0111\u1ecbnh h\u00ecnh t\u1ef1 nhi\u00ean c\u1ee7a ch\u00fang, c\u00e1c chu\u1ed7i n\u00e0y cu\u1ed9n l\u1ea1i ng\u1eabu nhi\u00ean, th\u01b0 gi\u00e3n v\u00e0 c\u00f3 n\u0103ng l\u01b0\u1ee3ng n\u1ed9i b\u1ed9 th\u1ea5p.<\/p>\n

Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, phim \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng theo hai chi\u1ec1u<\/strong>k\u00e9o d\u00e0i c\u1ea3 chi\u1ec1u d\u00e0i v\u00e0 chi\u1ec1u r\u1ed9ng khi c\u00f2n n\u00f3ng. \u0110i\u1ec1u n\u00e0y l\u00e0m cho c\u00e1c chu\u1ed7i polymer m\u1edf ra v\u00e0 c\u0103n ch\u1ec9nh, t\u1ea1o th\u00e0nh m\u1ed9t c\u1ea5u h\u00ecnh c\u00f3 c\u1ea5u tr\u00fac v\u00e0 n\u0103ng l\u01b0\u1ee3ng cao. L\u00e0m l\u1ea1nh nhanh (ng\u00e2m l\u1ea1nh) c\u1ed1 \u0111\u1ecbnh \u201ck\u00ed \u1ee9c co l\u1ea1i\u201d n\u00e0y v\u00e0o m\u00e0ng, l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng sau n\u00e0y s\u1ebd gi\u00fap co l\u1ea1i ch\u00ednh x\u00e1c quanh c\u00e1c s\u1ea3n ph\u1ea9m k\u1eb9o.<\/p>\n

\u0110i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a s\u1ef1 co l\u1ea1i<\/h3>\n

Nhi\u1ec7t k\u00edch ho\u1ea1t s\u1ef1 gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng \u0111\u00e3 t\u00edch tr\u1eef. Khi k\u1eb9o \u0111\u01b0\u1ee3c b\u1ecdc trong m\u00e0ng h\u01b0\u1edbng d\u1ecdc \u0111i qua m\u1ed9t \u1ed1ng thu nh\u1ecf<\/strong>, c\u00e1c chu\u1ed7i polyme c\u1ed1 g\u1eafng tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i tho\u1ea3i m\u00e1i c\u1ee7a ch\u00fang. S\u1ef1 co l\u1ea1i n\u00e0y t\u1ea1o ra m\u1ed9t l\u1edbp bao ch\u1eb7t ch\u1ebd, \u0111\u1ed3ng \u0111\u1ec1u, ho\u00e0n to\u00e0n ph\u00f9 h\u1ee3p v\u1edbi k\u1eb9o c\u1ee7a<\/a> h\u00ecnh d\u1ea1ng.<\/p>\n

H\u00e0nh vi co l\u1ea1i kh\u00e1c nhau t\u00f9y theo ch\u1ea5t li\u1ec7u. V\u00ed d\u1ee5, M\u00e0ng polyolefin (POF)<\/strong> th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u co l\u1ea1i kho\u1ea3ng 250\u00b0F (121\u00b0C) v\u00e0 \u0111\u1ea1t \u0111\u1ed9 co r\u00fat ho\u00e0n to\u00e0n \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n. Hi\u1ec3u c\u00e1c nguy\u00ean l\u00fd nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc n\u00e0y l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 ki\u1ec3m so\u00e1t \u0111\u1ed9 trong su\u1ed1t v\u00e0 S\u1ef1 nh\u1ea5t qu\u00e1n tr\u00ean m\u1ed9t vi\u00ean k\u1eb9o<\/a> D\u00f2ng.<\/p>\n

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Ch\u1ecdn Phim B\u1ecdc K\u1eb9o Ph\u00f9 H\u1ee3p<\/h2>\n

Vi\u1ec7c ch\u1ecdn phim co cho k\u1eb9o \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u00ecnh b\u00e0y, th\u1eddi gian b\u1ea3o qu\u1ea3n, hi\u1ec7u qu\u1ea3 d\u00e2y chuy\u1ec1n v\u00e0 chi ph\u00ed m\u1ed7i \u0111\u01a1n v\u1ecb. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh th\u1ef1c t\u1ebf d\u1ef1a tr\u00ean d\u1eef li\u1ec7u v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u ch\u00ednh.<\/p>\n

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\u0110\u1eb7c tr\u01b0ng<\/th>\nPolyolefin (POF)<\/th>\nPolyvinyl Chloride (PVC)<\/th>\nPolyetylen (PE)<\/th>\n<\/tr>\n<\/thead>\n
S\u1ef1 r\u00f5 r\u00e0ng v\u00e0 b\u00f3ng b\u1ea9y<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nR\u1ea5t t\u1ed1t<\/td>\nKh\u00e1 \u0111\u1ebfn T\u1ed1t<\/td>\n<\/tr>\n
\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td>\nCao<\/td>\nV\u1eeba ph\u1ea3i<\/td>\nR\u1ea5t cao<\/td>\n<\/tr>\n
T\u1ef7 l\u1ec7 co r\u00fat<\/td>\nCao (60\u201380%)<\/td>\nV\u1eeba ph\u1ea3i<\/td>\nTh\u1ea5p\u2013V\u1eeba (20\u201360%)<\/td>\n<\/tr>\n
Nhi\u1ec7t \u0111\u1ed9 ni\u00eam phong<\/td>\n300\u2013350\u00b0F (150\u2013177\u00b0C)<\/td>\n180\u2013250\u00b0F (82\u2013121\u00b0C)<\/td>\n350\u2013450\u00b0F (177\u2013232\u00b0C)<\/td>\n<\/tr>\n
\u0110\u1ed9 b\u1ec1n<\/td>\nCh\u1ecbu r\u00e1ch\/\u0111\u00e2m th\u1ee7ng xu\u1ea5t s\u1eafc<\/td>\nGi\u00f2n trong l\u1ea1nh, chuy\u1ec3n sang v\u00e0ng<\/td>\nCh\u1ecbu \u0111\u00e2m th\u1ee7ng xu\u1ea5t s\u1eafc<\/td>\n<\/tr>\n
Ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m (FDA)<\/td>\n\u0110\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/td>\nKh\u00f4ng d\u00f9ng cho ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi th\u1ef1c ph\u1ea9m<\/td>\n\u0110\u01b0\u1ee3c ph\u00ea duy\u1ec7t (c\u1ea5p \u0111\u1ed9 c\u1ee5 th\u1ec3)<\/td>\n<\/tr>\n
S\u1eed d\u1ee5ng t\u1ed1t nh\u1ea5t trong \u0111\u00f3ng g\u00f3i k\u1eb9o<\/td>\nBao b\u00ec b\u00e1n l\u1ebb, h\u00ecnh d\u1ea1ng kh\u00f4ng \u0111\u1ec1u<\/td>\nD\u1ea3i ch\u1ed1ng gi\u1ea3 m\u1ea1o, k\u1eb9o nh\u1eb9<\/td>\nBao b\u00ec v\u1eadn chuy\u1ec3n s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, h\u00e0ng n\u1eb7ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n