{"id":2822,"date":"2021-10-27T22:58:02","date_gmt":"2021-10-27T22:58:02","guid":{"rendered":"http:\/\/www.nonwovenmillrolls.com\/?p=2132"},"modified":"2026-10-13T15:07:12","modified_gmt":"2026-10-13T15:07:12","slug":"application-of-nylon-brush-roll-non-woven-mill-roll-for-the-production-of-aluminum-sheets-strips","status":"publish","type":"post","link":"https:\/\/www.nonwovenmillrolls.com\/vn\/application-of-nylon-brush-roll-non-woven-mill-roll-for-the-production-of-aluminum-sheets-strips\/","title":{"rendered":"\u1ee8ng d\u1ee5ng c\u1ee7a tr\u1ee5c ch\u1ed5i nylon v\u00e0 tr\u1ee5c c\u00e1n kh\u00f4ng d\u1ec7t trong s\u1ea3n xu\u1ea5t t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m"},"content":{"rendered":"\n

0 L\u1eddi t\u1ef1a<\/h3>\n\n\n\n

V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a c\u00f4ng ngh\u1ec7 c\u00f4ng nghi\u1ec7p, vi\u1ec7c s\u1eed d\u1ee5ng t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m nh\u01b0 v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i ng\u00e0y c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn, \u0111\u1ed3ng th\u1eddi c\u00e1c y\u00eau c\u1ea7u v\u1ec1 b\u1ec1 m\u1eb7t c\u0169ng ng\u00e0y c\u00e0ng cao h\u01a1n. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, cu\u1ed9n ch\u1ed5i nylon \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c quy tr\u00ecnh l\u00e0m s\u1ea1ch, t\u1ea9y d\u1ea7u m\u1ee1, v\u1ec7 sinh tr\u1ee5c l\u0103n, \u0111\u00e1nh b\u00f3ng v\u00e0 c\u00e1c quy tr\u00ecnh kh\u00e1c \u0111\u1ed1i v\u1edbi d\u1ea3i nh\u00f4m. Cu\u1ed9n v\u1ea3i kh\u00f4ng d\u1ec7t \u0111\u01b0\u1ee3c d\u00f9ng cho c\u00e1c quy tr\u00ecnh t\u1ea9y d\u1ea7u m\u1ee1 v\u00e0 kh\u1eed n\u01b0\u1edbc, gi\u00fap ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ee7a d\u1ea3i nh\u00f4m c\u00f3 b\u01b0\u1edbc ti\u1ebfn v\u01b0\u1ee3t b\u1eadc. B\u00e0i vi\u1ebft n\u00e0y gi\u1edbi thi\u1ec7u v\u00e0 th\u1ea3o lu\u1eadn v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, ph\u00e2n lo\u1ea1i v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a cu\u1ed9n ch\u1ed5i nylon v\u00e0 cu\u1ed9n v\u1ea3i kh\u00f4ng d\u1ec7t, c\u0169ng nh\u01b0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang trong s\u1ea3n xu\u1ea5t t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m c\u00f9ng c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan, nh\u1eb1m ph\u1ee5c v\u1ee5 tham kh\u1ea3o cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m c\u0169ng nh\u01b0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb li\u00ean quan.<\/p>\n\n\n\n

1 \u0110\u1eb7c \u0111i\u1ec3m & ph\u00e2n lo\u1ea1i c\u1ee7a tr\u1ee5c ch\u1ed5i nylon<\/h3>\n\n\n\n

1.1 \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a tr\u1ee5c ch\u1ed5i nylon<\/h4>\n\n\n\n

T\u00ean h\u00f3a h\u1ecdc c\u1ee7a nylon c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 polyamide (PA). V\u00ec n\u00f3 l\u00e0 m\u1ed9t polyme tinh th\u1ec3 v\u00e0 c\u00f3 \u0111\u1ed9 k\u1ebft tinh cao, n\u00ean \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 c\u1ee9ng, t\u00ednh \u0111\u00e0n h\u1ed3i v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a n\u00f3 \u0111\u1ec1u cao h\u01a1n c\u00e1c lo\u1ea1i nh\u1ef1a kh\u00e1c. \u0110\u1ed3ng th\u1eddi, nylon c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng h\u00f3a ch\u1ea5t t\u1ed1t. \u0110\u1eb7c bi\u1ec7t, n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng d\u1ea7u tuy\u1ec7t v\u1eddi v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c axit y\u1ebfu, baz\u01a1 y\u1ebfu c\u0169ng nh\u01b0 c\u00e1c dung m\u00f4i th\u00f4ng th\u01b0\u1eddng. Do \u0111\u00f3, trong s\u1ed1 nhi\u1ec1u s\u1ee3i c\u1ecd b\u1eb1ng nh\u1ef1a k\u1ef9 thu\u1eadt d\u00f9ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t d\u1ea3i nh\u00f4m, nylon l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u, \u0111i\u1ec1u n\u00e0y mang t\u00ednh h\u1ee3p l\u00fd v\u00e0 t\u1ea5t y\u1ebfu nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n

1.2 Ph\u00e2n lo\u1ea1i & \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a s\u1ee3i nylon <\/h4>\n\n\n\n

1.21 S\u1ee3i nylon 66<\/strong><\/p>\n\n\n\n

Hi\u1ec7n nay, c\u00e1c s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t b\u00e0n ch\u1ea3i c\u00f4ng nghi\u1ec7p ch\u1ee7 y\u1ebfu bao g\u1ed3m nylon 6, nylon 66, nylon 610, nylon 1010, nylon 612 v\u00e0 c\u00e1c v\u1eadt li\u1ec7u nylon kh\u00e1c. Trong qu\u00e1 tr\u00ecnh c\u00e1n ngu\u1ed9i t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m, do ma s\u00e1t v\u00e0 s\u1ef1 ti\u1ebfp x\u00fac gi\u1eefa tr\u1ee5c c\u00e1n v\u00e0 b\u1ec1 m\u1eb7t d\u1ea3i, b\u1ec1 m\u1eb7t s\u1ebd sinh ra hi\u1ec7n t\u01b0\u1ee3ng bong tr\u00f3c v\u00e0 h\u1ea5p ph\u1ee5 b\u1ed9t oxy h\u00f3a vi m\u00f4, \u0111\u1ed3ng th\u1eddi d\u1ea7u c\u00e1n c\u00f9ng c\u00e1c th\u00e0nh ph\u1ea7n l\u01a1 l\u1eedng \u0111i k\u00e8m s\u1ebd b\u00e1m l\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t d\u1ea3i. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch k\u1ecbp th\u1eddi, ch\u00fang s\u1ebd b\u00e1m v\u00e0o b\u1ec1 m\u1eb7t tr\u1ee5c c\u1ee7a m\u00e1y san ph\u1eb3ng u\u1ed1n k\u00e9o, g\u00e2y m\u00e0i m\u00f2n b\u1ec1 m\u1eb7t tr\u1ee5c v\u00e0 l\u00e0m h\u1ecfng b\u1ec1 m\u1eb7t d\u1ea3i. V\u00ec l\u00fd do n\u00e0y, quy tr\u00ecnh c\u1ecd r\u1eeda b\u1eb1ng n\u01b0\u1edbc n\u00f3ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao l\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu. Tuy nhi\u00ean, trong s\u1ed1 nhi\u1ec1u lo\u1ea1i s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i nylon, h\u1ea7u h\u1ebft c\u00e1c v\u1eadt li\u1ec7u nylon c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y kho\u1ea3ng 210\u00b0C, s\u1ebd b\u1ecb ph\u00e2n h\u1ee7y v\u00e0 bi\u1ebfn d\u1ea1ng khi s\u1eed d\u1ee5ng l\u00e2u d\u00e0i \u1edf nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc tr\u00ean 80\u00b0C, trong khi nylon 66 c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y 250\u00b0C v\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng khi s\u1eed d\u1ee5ng trong n\u01b0\u1edbc n\u00f3ng tr\u00ean 80\u00b0C. Do \u0111\u00f3, s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i nylon 66 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m s\u1ea1ch d\u1ea3i nh\u00f4m. Nh\u01b0ng nh\u01b0\u1ee3c \u0111i\u1ec3m nghi\u00eam tr\u1ecdng c\u1ee7a nylon 6 l\u00e0 kh\u1ea3 n\u0103ng h\u00fat n\u01b0\u1edbc qu\u00e1 cao (1,5%). Khi ch\u1ea3i trong n\u01b0\u1edbc, s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i s\u1ebd m\u1ec1m \u0111i v\u00e0 gi\u1ea3m \u0111\u1ed9 c\u1ee9ng, d\u1eabn \u0111\u1ebfn hi\u1ec7u qu\u1ea3 t\u1ea9y d\u1ea7u m\u1ee1 kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u. Ngo\u00e0i ra, b\u1ea3n th\u00e2n nylon c\u0169ng kh\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c ki\u1ec1m m\u1ea1nh, \u0111i\u1ec1u n\u00e0y c\u0169ng l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a cu\u1ed9n b\u00e0n ch\u1ea3i.<\/p>\n\n\n\n

1.2.2 S\u1ee3i DT-Belon<\/strong><\/p>\n\n\n\n

Theo nh\u1eefng v\u1ea5n \u0111\u1ec1 c\u1ee7a c\u00e1c s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i n\u00eau tr\u00ean, m\u1ed9t s\u1ed1 c\u00f4ng ty n\u01b0\u1edbc ngo\u00e0i \u0111\u00e3 b\u1ed5 sung nano-montmorillonite v\u00e0 c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c v\u00e0o n\u1ec1n nylon 66, \u0111\u1ed3ng th\u1eddi ph\u00e1t tri\u1ec3n s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i DT-Bellon, c\u00f3 \u0111\u1ed9 h\u00fat \u1ea9m th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi nylon 66, kh\u1ea3 n\u0103ng kh\u00e1ng ki\u1ec1m v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3, ho\u00e0n to\u00e0n gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 ch\u1ea3i d\u1ea3i nh\u00f4m. Sau khi th\u1eed nghi\u1ec7m, hi\u1ec7u qu\u1ea3 \u0111\u00e1nh b\u00f3ng c\u1ee7a n\u00f3 t\u0103ng g\u1ea5p \u0111\u00f4i so v\u1edbi nylon 66, v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a tr\u1ee5c l\u0103n b\u00e0n ch\u1ea3i t\u0103ng l\u00ean t\u1eeb 3 \u0111\u1ebfn 5 l\u1ea7n.<\/p>\n\n\n\n

1.23 Ch\u1ee9a d\u00e2y m\u00e0i m\u00f2n<\/strong><\/p>\n\n\n\n

S\u1ee3i b\u00e0n ch\u1ea3i m\u00e0i l\u00e0 c\u00e1c s\u1ee3i b\u00e0n ch\u1ea3i m\u00e0i c\u00f3 \u0111\u1ed9 d\u00e0y kh\u00e1c nhau, \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch th\u00eam kho\u1ea3ng 30% silicon carbide v\u00e0 c\u00e1c ch\u1ea5t m\u00e0i kh\u00e1c v\u00e0o v\u1eadt li\u1ec7u nh\u1ef1a nylon th\u00f4ng qua c\u00e1c quy tr\u00ecnh tr\u1ed9n, \u0111\u00f9n, k\u00e9o s\u1ee3i v\u00e0 c\u00e1c quy tr\u00ecnh kh\u00e1c. Nylon 612 l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u trong s\u1ed1 c\u00e1c lo\u1ea1i nylon. Ngo\u00e0i c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a PA, nylon 612 c\u00f2n c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 \u0111\u1ed9 r\u1ed9ng t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf, \u0111\u1ed9 h\u00fat \u1ea9m th\u1ea5p (0,1%), m\u1eadt \u0111\u1ed9 t\u1ed1t v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc cao, c\u0169ng nh\u01b0 \u0111\u1ed9 b\u1ec1n k\u00e9o cao. Nylon 610 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u k\u00e9o s\u1ee3i, nh\u01b0ng hi\u1ec7u qu\u1ea3 chi ph\u00ed th\u1ea5p. T\u00f9y theo c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00e1c nhau, hi\u1ec7n nay ch\u1ee7 y\u1ebfu c\u00f3 c\u00e1c lo\u1ea1i s\u1ee3i b\u00e0n ch\u1ea3i sau:<\/p>\n\n\n\n

(1) S\u1ee3i m\u00e0i m\u00f2n silicon carbide \u0111\u01b0\u1ee3c k\u00e9o b\u1eb1ng c\u00e1ch th\u00eam b\u1ed9t silicon carbide v\u00e0o nylon. Do c\u1ea5u tr\u00fac \u0111a gi\u00e1c c\u1ee7a silicon carbide, s\u1ea3n ph\u1ea9m t\u1ea1o ra c\u00f3 d\u1ea1ng \u00e1nh s\u00e1ng b\u00f3ng, ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ea3i ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng c\u1ee1 180#~800#.<\/p>\n\n\n\n

(2) B\u1ed9t alumina \u0111\u01b0\u1ee3c th\u00eam v\u00e0o s\u1ee3i m\u00e0i m\u00f2n alumina v\u00e0 s\u1ee3i nylon. V\u00ec c\u1ea5u tr\u00fac \u0111a l\u0103ng tr\u1ee5, s\u1ea3n ph\u1ea9m t\u1ea1o ra c\u00f3 d\u1ea1ng m\u1edd, ch\u1ee7 y\u1ebfu \u1edf c\u1ee1 180#~800#.<\/p>\n\n\n\n

(3) D\u00e2y ch\u1ed5i kim c\u01b0\u01a1ng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nylon pha b\u1ed9t kim c\u01b0\u01a1ng. Nh\u1edd \u0111\u1ed9 s\u1eafc v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1eb7c bi\u1ec7t, n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c d\u00f9ng cho qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng v\u00e0 c\u00e1c quy tr\u00ecnh kh\u00e1c trong s\u1ea3n xu\u1ea5t d\u1ea3i nh\u00f4m, th\u01b0\u1eddng d\u00f9ng c\u1ee1 320#~3000#.<\/p>\n\n\n\n

(4) D\u00e2y m\u00e0i m\u00f2n \u0111\u1eb7c bi\u1ec7t ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao
D\u00e2y m\u00e0i ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u1ef1a t\u1ed5ng h\u1ee3p PPS ho\u1eb7c PEEK v\u00e0 s\u1ee3i k\u00e9o m\u00e0i. V\u00ec \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a n\u00f3 l\u00ean t\u1edbi 300\u2103 v\u00e0 355\u2103, n\u00ean n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh l\u00e0m s\u1ea1ch b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng kh\u00f4 ho\u1eb7c c\u00e1n n\u00f3ng. Trong c\u00f9ng \u0111i\u1ec1u ki\u1ec7n \u0111\u00e1nh b\u00f3ng kh\u00f4 t\u1ed1c \u0111\u1ed9 cao, c\u00e1c s\u1ee3i m\u00e0i th\u00f4ng th\u01b0\u1eddng \u0111\u00e3 b\u1ecb n\u00f3ng ch\u1ea3y v\u00e0 bi\u1ebfn d\u1ea1ng, nh\u01b0ng c\u00e1c s\u1ee3i m\u00e0i ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n

(5) D\u00e2y ch\u1ed5i nhi\u1ec1u s\u1ee3i
M\u1eb7c d\u00f9 c\u00e1c s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i m\u1ecbn h\u01a1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u00e0 nh\u00e1m c\u00e1c d\u1ea3i nh\u00f4m ch\u00ednh x\u00e1c, nh\u01b0ng v\u00ec c\u00e1c s\u1ee3i l\u00f4ng v\u1eabn l\u00e0 s\u1ee3i \u0111\u01a1n n\u00ean sau khi quan s\u00e1t k\u1ef9 v\u1eabn s\u1ebd \u0111\u1ec3 l\u1ea1i v\u1ebft x\u01b0\u1edbc tr\u00ean b\u1ec1 m\u1eb7t t\u1ea5m. V\u00ec l\u00fd do n\u00e0y, \u0110\u1ee9c, Nh\u1eadt B\u1ea3n v\u00e0 H\u00e0n Qu\u1ed1c \u0111\u00e3 l\u1ea7n l\u01b0\u1ee3t gi\u1edbi thi\u1ec7u c\u00e1c lo\u1ea1i s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i \u0111a s\u1ee3i, t\u1ee9c l\u00e0 trong c\u00e1c s\u1ee3i l\u00f4ng b\u00e0n ch\u1ea3i c\u00f3 k\u00edch th\u01b0\u1edbc 0,5-Imm ch\u1ee9a v\u00f4 s\u1ed1 s\u1ee3i vi s\u1ee3i. S\u1ee3i tr\u1edf th\u00e0nh b\u1ec1 m\u1eb7t b\u00e0n ch\u1ea3i, gi\u00fap gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y r\u1ea5t hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

1.3 L\u1ef1a ch\u1ecdn tr\u1ee5c ch\u1ed5i cho s\u1ea3n xu\u1ea5t t\u1ea5m & d\u1ea3i nh\u00f4m<\/h4>\n\n\n\n

M\u00e1y k\u00e9o c\u0103ng-u\u1ed1n v\u00e0 l\u00e0m s\u1ea1ch ph\u1eb3ng: M\u00e1y k\u00e9o c\u0103ng-u\u1ed1n v\u00e0 l\u00e0m s\u1ea1ch ph\u1eb3ng th\u01b0\u1eddng l\u00e0 c\u00f4ng \u0111o\u1ea1n cu\u1ed1i c\u00f9ng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t t\u1ea5m nh\u00f4m. Y\u00eau c\u1ea7u v\u1ec1 b\u1ec1 m\u1eb7t t\u1ea5m r\u1ea5t kh\u1eaft khe. Do \u0111\u00f3, c\u1ea5u tr\u00fac tr\u1ee5c ch\u1ea3i s\u1eed d\u1ee5ng lo\u1ea1i tr\u1ee5c ch\u1ea3i phun b\u00ean trong. D\u00e2y ch\u1ea3i l\u00e0 d\u00e2y ch\u1ea3i nhi\u1ec1u s\u1ee3i c\u1ee7a C\u00f4ng ty Haar (\u0110\u1ee9c) ho\u1eb7c C\u00f4ng ty Hotan (Nh\u1eadt B\u1ea3n), ho\u1eb7c d\u00e2y ch\u1ea3i nylon c\u00f3 \u0111\u01b0\u1eddng k\u00ednh d\u01b0\u1edbi 0,15 mm. D\u00e2y nylon c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 0,3\u20130,5 mm c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m s\u1ea1ch d\u1ea3i nh\u00f4m d\u00e0y.<\/p>\n\n\n\n

(2) B\u00e0n ch\u1ea3i l\u00e0m s\u1ea1ch tr\u1ee5c c\u00e1n c\u1ee7a m\u00e1y c\u00e1n n\u00f3ng: M\u1ee5c \u0111\u00edch c\u1ee7a b\u00e0n ch\u1ea3i l\u00e0m s\u1ea1ch tr\u1ee5c c\u00e1n m\u00e1y c\u00e1n n\u00f3ng l\u00e0 s\u1eed d\u1ee5ng c\u00e1c b\u00e0n ch\u1ea3i d\u00e2y th\u00e9p trong to\u00e0n b\u1ed9 quy tr\u00ecnh. Do t\u00ednh gi\u00f2n c\u1ee7a d\u00e2y th\u00e9p, n\u00f3 d\u1ec5 b\u1ecb g\u00e3y v\u00e0 g\u00e2y x\u01b0\u1edbc tr\u00ean b\u1ec1 m\u1eb7t tr\u1ee5c c\u00e1n. Hi\u1ec7n nay, hi\u1ec7u qu\u1ea3 nh\u1ea5t l\u00e0 lo\u1ea1i b\u00e0n ch\u1ea3i m\u00e0i c\u00f3 phun n\u01b0\u1edbc b\u00ean trong. Th\u00f4ng th\u01b0\u1eddng, ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng s\u1ee3i m\u00e0i nylon c\u1ee1 180#, v\u00e0 m\u1eadt \u0111\u1ed9 s\u1ee3i b\u00e0n ch\u1ea3i kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ea5p h\u01a1n 50%. Do \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a nylon th\u1ea5p, n\u00ean khi l\u01b0\u1ee3ng n\u01b0\u1edbc kh\u00f4ng \u0111\u1ee7, \u0111\u00f4i khi c\u00f3 th\u1ec3 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng ch\u00e1y s\u1ee3i b\u00e0n ch\u1ea3i. Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00e3 b\u1eaft \u0111\u1ea7u s\u1eed d\u1ee5ng s\u1ee3i m\u00e0i ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, nh\u01b0ng gi\u00e1 th\u00e0nh t\u01b0\u01a1ng \u0111\u1ed1i cao h\u01a1n.<\/p>\n\n\n\n

(3) B\u00e0n ch\u1ea3i l\u00e0m s\u1ea1ch tr\u1ee5c c\u00e1n c\u1ee7a m\u00e1y c\u00e1n ngu\u1ed9i: Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, vi\u1ec7c l\u00e0m s\u1ea1ch tr\u1ee5c c\u00e1n c\u1ee7a m\u00e1y c\u00e1n ngu\u1ed9i \u0111\u00e3 b\u1eaft \u0111\u1ea7u thu h\u00fat s\u1ef1 ch\u00fa \u00fd c\u1ee7a nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t. Ngo\u00e0i vi\u1ec7c lo\u1ea1i b\u1ecf b\u1ee5i b\u1ea9n tr\u00ean b\u1ec1 m\u1eb7t tr\u1ee5c c\u00e1n, b\u00e0n ch\u1ea3i l\u00e0m s\u1ea1ch tr\u1ee5c c\u00e1n c\u1ee7a m\u00e1y c\u00e1n ngu\u1ed9i kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m x\u01b0\u1edbc b\u1ec1 m\u1eb7t th\u00e2n tr\u1ee5c. Mingtai Aluminum \u0111\u00e3 ti\u1ebfn h\u00e0nh nhi\u1ec1u n\u0103m th\u1eed nghi\u1ec7m h\u1ee3p t\u00e1c, l\u1ef1a ch\u1ecdn s\u1ee3i m\u00e0i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh d\u01b0\u1edbi 0,5 mm, ki\u1ec3m so\u00e1t chi\u1ec1u d\u00e0i s\u1ee3i b\u00e0n ch\u1ea3i trong m\u1ed9t ph\u1ea1m vi nh\u1ea5t \u0111\u1ecbnh, duy tr\u00ec m\u1eadt \u0111\u1ed9 s\u1ee3i b\u00e0n ch\u1ea3i tr\u00ean 60%, v\u00e0 th\u1ef1c hi\u1ec7n nhi\u1ec1u l\u1ea7n \u0111\u00e1nh b\u00f3ng t\u1eeb th\u00f4 \u0111\u1ebfn m\u1ecbn l\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n

(4) \u0110\u00e1nh b\u00f3ng t\u1ea5m g\u01b0\u01a1ng: Do nh\u01b0\u1ee3c \u0111i\u1ec3m d\u1ec5 d\u00ednh v\u00e0 d\u1ec5 b\u1ecb oxy h\u00f3a c\u1ee7a t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m, vi\u1ec7c \u0111\u00e1nh b\u00f3ng t\u1ea5m g\u01b0\u01a1ng cho t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m t\u1eeb l\u00e2u \u0111\u00e3 l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 g\u00e2y kh\u00f3 kh\u0103n cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m. V\u00ec l\u00fd do n\u00e0y, sau nhi\u1ec1u n\u0103m th\u1eed nghi\u1ec7m h\u1ee3p t\u00e1c v\u1edbi Henan Mingmingtai Aluminum, ng\u01b0\u1eddi ta nh\u1eadn th\u1ea5y r\u1eb1ng tr\u1ee5c ch\u1ed5i kim c\u01b0\u01a1ng 320#-3000# l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

(5) B\u00e0n ch\u1ea3i \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng cho tr\u1ee5c l\u0103n: Vi\u1ec7c \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng cho tr\u1ee5c l\u0103n l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 l\u1edbn trong ng\u00e0nh s\u1ea3n xu\u1ea5t d\u1ea3i nh\u00f4m. Hi\u1ec7n nay, h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t v\u1eabn s\u1eed d\u1ee5ng gi\u1ea3i ph\u00e1p \u0111\u00e1nh b\u00f3ng b\u1eb1ng b\u0103ng m\u00e0i, v\u1eeba t\u1ed1n th\u1eddi gian l\u1ea1i v\u1ea5t v\u1ea3. Gi\u1ea3i ph\u00e1p l\u00e0m m\u1edbi b\u1ec1 m\u1eb7t \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng c\u1ee7a tr\u1ee5c l\u0103n l\u00e0 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u PEEK, th\u00eam ch\u1ea5t m\u00e0i 5000# \u0111\u1ec3 ch\u1ebf t\u1ea1o b\u00e0n ch\u1ea3i d\u1ea1ng \u0111\u0129a, v\u00e0 trang b\u1ecb thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c \u0111\u00e1nh b\u00f3ng. Ban \u0111\u1ea7u, th\u1eddi gian \u0111\u00e1nh b\u00f3ng k\u00e9o d\u00e0i t\u1edbi 5 ng\u00e0y, nh\u01b0ng gi\u1edd \u0111\u00e2y ch\u1ec9 c\u1ea7n 2 gi\u1edd l\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u \u1ee9ng b\u1ec1 m\u1eb7t g\u01b0\u01a1ng v\u1edbi \u0111\u1ed9 nh\u00e1m 0,001.<\/p>\n\n\n\n

1.4 T\u00e1i t\u1ea1o h\u00ecnh tr\u1ee5c ch\u1ed5i<\/h4>\n\n\n\n

Sau khi tr\u1ee5c ch\u1ed5i \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u1eddi gian d\u00e0i, tr\u00ean b\u1ec1 m\u1eb7t s\u1ebd xu\u1ea5t hi\u1ec7n hai h\u00ecnh qu\u1ea3 t\u1ea1 l\u1edbn (hay c\u00f2n g\u1ecdi l\u00e0 x\u01b0\u01a1ng ch\u00f3). C\u00f3 th\u1ec3 d\u00f9ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p sau \u0111\u1ec3 c\u1eaft t\u1ec9a v\u00e0o th\u1eddi \u0111i\u1ec3m th\u00edch h\u1ee3p: <\/p>\n\n\n\n

(1) D\u00f9 l\u00e0 s\u1ee3i nylon nguy\u00ean ch\u1ea5t hay s\u1ee3i m\u00e0i m\u00f2n, \u0111\u1ec1u c\u00f3 th\u1ec3 c\u1eaft b\u1eb1ng m\u1ed9t d\u1ee5ng c\u1ee5 chuy\u00ean d\u1ee5ng; gi\u00e1 \u0111\u1ee1 d\u1ee5ng c\u1ee5 \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 l\u1eafp \u0111\u1eb7t tr\u00ean m\u00e1y ti\u1ec7n; <\/p>\n\n\n\n

(2) Tr\u1ee5c ch\u1ed5i s\u1ee3i m\u00e0i m\u00f2n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean m\u00e1y m\u00e0i tr\u1ee5 ho\u1eb7c m\u00e1y ti\u1ec7n. S\u1eed d\u1ee5ng \u0111\u00e1 m\u00e0i \u0111\u1ec3 m\u00e0i l\u1ea1i, v\u00e0 lo\u1ea1i \u0111\u00e1 m\u00e0i c\u00f3 th\u1ec3 l\u00e0 \u0111\u00e1 m\u00e0i silicon carbide 46#.<\/p>\n\n\n\n

2 \u0110\u1eb7c \u0111i\u1ec3m & \u1ee8ng d\u1ee5ng c\u1ee7a tr\u1ee5c c\u00e1n \u0111a n\u0103ng b\u1eb1ng v\u1ea3i kh\u00f4ng d\u1ec7t<\/h3>\n\n\n\n

Cu\u1ed9n kh\u00f4ng d\u1ec7t \u0111a n\u0103ng l\u00e0 m\u1ed9t cu\u1ed9n c\u00e1n kh\u00f4ng d\u1ec7t \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1eb1ng c\u00e1ch thi\u00eau k\u1ebft m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u kh\u00f4ng d\u1ec7t \u0111\u1eb7c bi\u1ec7t th\u00e0nh c\u1ea5u tr\u00fac h\u00ecnh tr\u1ee5 th\u00f4ng qua quy tr\u00ecnh \u0111\u1eb7c bi\u1ec7t, sau \u0111\u00f3 \u00e9p l\u00ean tr\u1ee5c th\u00e9p, kh\u00e1c v\u1edbi c\u00e1c lo\u1ea1i tr\u1ee5c cao su v\u00e0 tr\u1ee5c th\u00e9p truy\u1ec1n th\u1ed1ng. \u0110\u1eb7c \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a cu\u1ed9n c\u00e1n n\u00e0y l\u00e0 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u kh\u00f4ng d\u1ec7t \u0111\u1eb7c bi\u1ec7t c\u00f3 c\u1ea5u tr\u00fac b\u00ean trong d\u1ea1ng l\u01b0\u1edbi, c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 d\u1ea7u, n\u01b0\u1edbc v\u00e0 th\u1ea9m th\u1ea5u b\u1ed9t d\u01b0 th\u1eeba tr\u00ean b\u1ec1 m\u1eb7t t\u1ea5m, \u0111\u1ed3ng th\u1eddi c\u00f3 h\u1ec7 s\u1ed1 ma s\u00e1t cao.<\/p>\n\n\n\n

2.1 V\u1eaft n\u01b0\u1edbc trong d\u00e2y chuy\u1ec1n gi\u1eb7t<\/h4>\n\n\n\n

Trong c\u00f4ng \u0111o\u1ea1n cu\u1ed1i c\u00f9ng c\u1ee7a d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t l\u00e0m s\u1ea1ch, kh\u00f4ng c\u00f3 g\u00ec kh\u00e1c ngo\u00e0i vi\u1ec7c th\u00eam m\u1ed9t tr\u1ee5c \u00e9p cao su. Do nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 b\u1ea3n th\u00e2n tr\u1ee5c cao su kh\u00f4ng th\u1ec3 h\u1ea5p th\u1ee5 n\u01b0\u1edbc, n\u00ean c\u1ea7n ph\u1ea3i s\u1ea5y kh\u00f4 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn n\u01b0\u1edbc trong \u0111\u01b0\u1eddng h\u1ea7m s\u1ea5y sau \u0111\u00f3, ti\u00eau t\u1ed1n r\u1ea5t nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng. B\u1ea5t k\u1ef3 s\u01a1 su\u1ea5t n\u00e0o c\u0169ng s\u1ebd \u0111\u1ec3 l\u1ea1i v\u1ebft n\u01b0\u1edbc tr\u00ean b\u1ec1 m\u1eb7t t\u1ea5m v\u00e0 d\u1ea3i, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ee7a t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m. Theo t\u00ednh to\u00e1n, ph\u1ea7n l\u1edbn chi ph\u00ed c\u1ee7a d\u00e2y chuy\u1ec1n l\u00e0m s\u1ea1ch s\u1ebd \u0111\u01b0\u1ee3c d\u00e0nh cho qu\u00e1 tr\u00ecnh s\u1ea5y kh\u00f4 t\u1ea5m v\u00e0 d\u1ea3i sau \u0111\u00f3. N\u00f3i chung, c\u1ee9 t\u0103ng 1% \u0111\u1ed9 kh\u00f4 th\u00ec t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi vi\u1ec7c gi\u1ea3m 5% l\u01b0\u1ee3ng n\u01b0\u1edbc bay h\u01a1i trong \u0111\u01b0\u1eddng h\u1ea7m s\u1ea5y, ngh\u0129a l\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n t\u0103ng kho\u1ea3ng 5%. \u0110i\u1ec1u nghi\u00eam tr\u1ecdng h\u01a1n l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng b\u00e1m b\u1ea9n khi s\u1eed d\u1ee5ng c\u00e1c tr\u1ee5c \u0111\u00e3 c\u0169, c\u1eb7n b\u1ea9n kh\u00f4ng \u0111\u01b0\u1ee3c \u00e9p s\u1ea1ch, khi\u1ebfn b\u1ec1 m\u1eb7t h\u00ecnh th\u00e0nh c\u1ea5u tr\u00fac d\u1ea1ng v\u1ec7t, v\u00e0 \u0111\u1ed9 ph\u1ea3n x\u1ea1 b\u1ec1 m\u1eb7t ch\u1ec9 c\u00f2n kho\u1ea3ng 30%.<\/p>\n\n\n\n

Hi\u1ec7u qu\u1ea3 v\u1eaft n\u01b0\u1edbc c\u1ee7a cu\u1ed9n kh\u00f4ng d\u1ec7t t\u0103ng h\u01a1n 5 l\u1ea7n, gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3. B\u1ec1 m\u1eb7t t\u1ea5m r\u1ea5t s\u1ea1ch v\u00e0 s\u00e1ng, v\u1edbi \u0111\u1ed9 ph\u1ea3n x\u1ea1 tr\u00ean 90%. Tr\u01b0\u1edbc \u0111\u00e2y, cu\u1ed9n cao su ph\u1ea3i \u0111\u01b0\u1ee3c thay th\u1ebf m\u1ed7i th\u00e1ng m\u1ed9t l\u1ea7n. S\u1ea3n l\u01b0\u1ee3ng nh\u00f4m t\u1ea5m v\u00e0 b\u0103ng m\u1ecfng \u0111\u1ea1t t\u1edbi 1200 t\u1ea5n. Hi\u1ec7n nay, ch\u1ec9 c\u1ea7n m\u00e0i m\u1ed9t l\u1ea7n l\u00e0 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t 4000 t\u1ea5n. Tu\u1ed5i th\u1ecd c\u1ee7a cu\u1ed9n k\u00e9o d\u00e0i h\u01a1n 2 n\u0103m, gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n\n

2.2 C\u1ea3i ti\u1ebfn c\u00f4ng ngh\u1ec7 t\u1ea9y d\u1ea7u m\u1ee1 cho t\u1ea5m th\u00e9p v\u00e2n caro<\/h4>\n\n\n\n

T\u1ea9y d\u1ea7u tr\u00ean t\u1ea5m hoa v\u0103n l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00f3 kh\u0103n trong s\u1ea3n xu\u1ea5t th\u00e9p cu\u1ed9n. Sau nhi\u1ec1u l\u1ea7n ph\u00e1t tri\u1ec3n, m\u1ed9t con l\u0103n \u00e9p ch\u00e2n kh\u00f4ng d\u00e0nh cho t\u1ea5m hoa v\u0103n \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o d\u1ef1a tr\u00ean c\u01a1 s\u1edf c\u00e1c con l\u0103n kh\u00f4ng d\u1ec7t. Nguy\u00ean l\u00fd c\u01a1 b\u1ea3n l\u00e0 b\u1ecdc tr\u1ee5c con l\u0103n ch\u00e2n kh\u00f4ng b\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u \u0111\u00e0n h\u1ed3i c\u00f3 \u0111\u1ed9 c\u1ee9ng kh\u00e1c nhau \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi b\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a t\u1ea5m hoa v\u0103n, \u0111\u1ed3ng th\u1eddi h\u00fat d\u1ea7u v\u00e0o th\u00e2n con l\u0103n nh\u1eb1m \u0111\u1ea1t m\u1ee5c \u0111\u00edch t\u1ea9y d\u1ea7u. Hi\u1ec7n nay, s\u1ea3n ph\u1ea9m n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t nh\u01b0 Mingtai Aluminum \u0111\u00f3n nh\u1eadn t\u00edch c\u1ef1c, l\u1ea5p \u0111\u1ea7y kho\u1ea3ng tr\u1ed1ng trong l\u0129nh v\u1ef1c n\u00e0y t\u1ea1i Trung Qu\u1ed1c (xem H\u00ecnh 4).<\/p>\n\n\n\n

H\u00ecnh 4: Tr\u1ee5c \u00e9p ch\u00e2n kh\u00f4ng cho t\u1ea5m hoa v\u0103n<\/p>\n\n\n\n

2.3 C\u1ea3i thi\u1ec7n ch\u1ee9c n\u0103ng c\u1ee7a tr\u1ee5c d\u1eabn h\u01b0\u1edbng<\/h4>\n\n\n\n

Trong quy tr\u00ecnh truy\u1ec1n th\u1ed1ng, h\u1ea7u h\u1ebft c\u00e1c con l\u0103n d\u1eabn h\u01b0\u1edbng v\u00e0 con l\u0103n ch\u1eef S trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng con l\u0103n cao su polyurethane, nh\u01b0ng do h\u1ec7 s\u1ed1 ma s\u00e1t kh\u00f4ng \u0111\u1ee7 n\u00ean d\u1ea3i v\u1eadt li\u1ec7u th\u1ec9nh tho\u1ea3ng b\u1ecb tr\u01b0\u1ee3t v\u00e0 l\u1ec7ch. Con l\u0103n \u0111a n\u0103ng cho nh\u00e0 m\u00e1y c\u00e1n kh\u00f4ng d\u1ec7t, nh\u1edd \u0111\u1eb7c t\u00ednh b\u1ecdc s\u1ee3i, c\u00f3 h\u1ec7 s\u1ed1 ma s\u00e1t cao, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy\u1ec1n \u0111\u1ed9ng v\u00e0 \u0111i\u1ec1u khi\u1ec3n d\u1eabn h\u01b0\u1edbng \u1ed5n \u0111\u1ecbnh, xem B\u1ea3ng 1.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u tr\u1ee5c c\u00e1n<\/strong><\/td>T\u1ea5m kh\u00f4<\/strong><\/td>T\u1ea5m d\u1ea7u<\/strong><\/td><\/tr>
Tr\u1ee5c c\u00e1n nh\u00e0 m\u00e1y th\u00e9p <\/td>0.015<\/td>0.012<\/td><\/tr>
Tr\u1ee5c c\u00e1n gang <\/td>0.018<\/td>0.012<\/td><\/tr>
Tr\u1ee5c c\u00e1n m\u1ea1 cr\u00f4m <\/td> 0.018 <\/td>0.012<\/td><\/tr>
Cu\u1ed9n c\u00e1n PU <\/td>0.020<\/td>0.01 <\/td><\/tr>
Cu\u1ed9n c\u00e1n s\u01a1n WC <\/td>0.016<\/td>0.01<\/td><\/tr>
Cu\u1ed9n c\u00e1n kh\u00f4ng d\u1ec7t<\/td>0.5<\/td>0.35<\/td><\/tr><\/tbody><\/table>
B\u1ea3ng 1 So s\u00e1nh h\u1ec7 s\u1ed1 ma s\u00e1t c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u cu\u1ed9n c\u00e1n<\/figcaption><\/figure>\n\n\n\n

C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb B\u1ea3ng 1 r\u1eb1ng h\u1ec7 s\u1ed1 ma s\u00e1t c\u1ee7a cu\u1ed9n kh\u00f4ng d\u1ec7t cao g\u1ea5p 20-40 l\u1ea7n so v\u1edbi cu\u1ed9n th\u00e9p v\u00e0 cu\u1ed9n cao su. H\u1ec7 s\u1ed1 ma s\u00e1t cao n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng l\u1ef1c c\u0103ng t\u0103ng l\u00ean 20-40 l\u1ea7n \u0111\u1ed3ng th\u1eddi, gi\u00fap cu\u1ed9n c\u0103ng ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru, tr\u00e1nh c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng kh\u00f4ng mong mu\u1ed1n nh\u01b0 t\u00ecnh tr\u1ea1ng d\u00e2y \u0111ai b\u1ecb ch\u00f9ng trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

Nh\u1edd nh\u1eefng \u0111\u1eb7c t\u00ednh \u01b0u vi\u1ec7t c\u1ee7a ch\u00ednh cu\u1ed9n kh\u00f4ng d\u1ec7t, ngo\u00e0i c\u00e1c \u1ee9ng d\u1ee5ng n\u00eau tr\u00ean, n\u00f3 c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u00e1y c\u00e1n m\u1ecfng nh\u00f4m, \u00e9p l\u00e1 kim lo\u1ea1i v\u00e0 m\u00e1y c\u1eaft b\u0103ng. Tu\u1ed5i th\u1ecd c\u1ee7a cu\u1ed9n cao g\u1ea5p 8-10 l\u1ea7n so v\u1edbi cu\u1ed9n cao su, gi\u00fap ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 chi ph\u00ed v\u00e0 th\u1eddi gian thay cu\u1ed9n cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng, \u0111\u1ed3ng th\u1eddi n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

Hi\u1ec7n nay, c\u00e1c cu\u1ed9n v\u1ea3i kh\u00f4ng d\u1ec7t DT \u0111\u00e3 chi\u1ebfm m\u1ed9t ph\u1ea7n l\u1edbn th\u1ecb tr\u01b0\u1eddng trong s\u1ea3n xu\u1ea5t b\u0103ng \u0111\u1ed3ng v\u00e0 b\u0103ng nh\u00f4m trong n\u01b0\u1edbc, v\u00e0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t b\u0103ng th\u00e9p c\u0169ng \u0111\u00e3 b\u1eaft \u0111\u1ea7u s\u1eed d\u1ee5ng ch\u00fang. C\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y \u0111\u00e3 d\u1ea7n tr\u01b0\u1edfng th\u00e0nh v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c quy m\u00f4 nh\u1ea5t \u0111\u1ecbnh, thay th\u1ebf h\u00e0ng nh\u1eadp kh\u1ea9u. \u0110\u01b0\u1ee3c ki\u1ec3m nghi\u1ec7m b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e1y c\u00e1n n\u1ed5i ti\u1ebfng qu\u1ed1c t\u1ebf Italy MINO, c\u00e1c ch\u1ec9 s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed c\u1ee7a cu\u1ed9n v\u1ea3i kh\u00f4ng d\u1ec7t DT \u0111\u00e3 v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m t\u01b0\u01a1ng t\u1ef1 nh\u1eadp kh\u1ea9u.
Cu\u1ed9n kh\u00f4ng d\u1ec7t DT \u0111\u01b0\u1ee3c ng\u01b0\u1eddi d\u00f9ng \u0111\u00e1nh gi\u00e1 cao v\u1ec1 hi\u1ec7u qu\u1ea3 chi ph\u00ed, th\u1eddi gian giao h\u00e0ng ng\u1eafn v\u00e0 b\u1ea3o tr\u00ec thu\u1eadn ti\u1ec7n, c\u00f3 gi\u00e1 tr\u1ecb qu\u1ea3ng b\u00e1 r\u1ed9ng r\u00e3i.<\/p>\n\n\n\n

3 M\u00e1y \u00e9p ch\u00e2n kh\u00f4ng<\/h3>\n\n\n\n

M\u00e1y \u00e9p ch\u00e2n kh\u00f4ng l\u00e0 m\u1ed9t lo\u1ea1i m\u00e1y \u00e9p ch\u00e2n kh\u00f4ng m\u1edbi \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn d\u1ef1a tr\u00ean cu\u1ed9n \u0111a n\u0103ng kh\u00f4ng d\u1ec7t ban \u0111\u1ea7u. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng l\u00e0 thay \u0111\u1ed5i ph\u1ea7n l\u00f5i r\u1eafn c\u1ee7a cu\u1ed9n \u0111a n\u0103ng kh\u00f4ng d\u1ec7t th\u00e0nh m\u1ed9t cu\u1ed9n ch\u00e2n kh\u00f4ng c\u00f3 c\u00e1c h\u00e0ng l\u1ed7 t\u01b0\u01a1ng \u1ee9ng tr\u00ean b\u1ec1 m\u1eb7t. Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, ch\u1ea5t l\u1ecfng tr\u00ean t\u1ea5m v\u00e0 d\u1ea3i \u0111\u01b0\u1ee3c \u00e9p v\u00e0o b\u00ean trong th\u00e2n cu\u1ed9n, sau \u0111\u00f3 \u0111\u01b0\u1ee3c b\u01a1m h\u00fat b\u1edfi h\u1ec7 th\u1ed1ng b\u01a1m tu\u1ea7n ho\u00e0n c\u1ee7a m\u00e1y. Ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c l\u1ecdc qua h\u1ec7 th\u1ed1ng t\u00e1ch kh\u00ed \u2013 n\u01b0\u1edbc v\u00e0 c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c minh h\u1ecda trong H\u00ecnh 5.<\/p>\n\n\n\n

M\u00e1y n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 ki\u1ec3m tra nghi\u00eam ng\u1eb7t b\u1edfi nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t nh\u01b0 C\u00f4ng ty TNHH Nh\u00f4m, Nh\u00f4m Mingtai v\u00e0 \u0110\u1ed3ng Sanfeng. So v\u1edbi cu\u1ed9n v\u1ea3i kh\u00f4ng d\u1ec7t ban \u0111\u1ea7u, t\u1ed1c \u0111\u1ed9 s\u1ea5y c\u1ee7a m\u00e1y \u00e9p ch\u00e2n kh\u00f4ng t\u0103ng h\u01a1n 30%. Th\u1ef1c t\u1ebf \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u00e9p ch\u00e2n kh\u00f4ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 lo\u1ea1i b\u1ecf ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t t\u1ea5m v\u00e0 d\u1ea3i. D\u1ef1 \u00e1n \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng s\u00e1ng ch\u1ebf ki\u1ec3u d\u00e1ng h\u1eefu d\u1ee5ng qu\u1ed1c gia v\u00e0 \u0111\u00e3 v\u01b0\u1ee3t qua \u0111\u1ee3t th\u1ea9m \u0111\u1ecbnh chuy\u00ean gia do C\u1ee5c Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 th\u00e0nh ph\u1ed1 T\u00e2y An, t\u1ec9nh Thi\u1ec3m T\u00e2y t\u1ed5 ch\u1ee9c. C\u00e1c chuy\u00ean gia nh\u1ea5t tr\u00ed \u0111\u00e1nh gi\u00e1 d\u1ef1 \u00e1n \u0111\u1ea1t tr\u00ecnh \u0111\u1ed9 ti\u00ean ti\u1ebfn trong n\u01b0\u1edbc v\u00e0 l\u00e0 m\u1ed9t th\u00e0nh t\u1ef1u \u0111\u00e1ng \u0111\u01b0\u1ee3c qu\u1ea3ng b\u00e1 r\u1ed9ng r\u00e3i.<\/p>\n\n\n\n

4 T\u00f3m t\u1eaft<\/h3>\n\n\n\n

Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m, c\u00e1c c\u00f4ng \u0111o\u1ea1n nh\u01b0 l\u00e0m s\u1ea1ch, t\u1ea9y d\u1ea7u m\u1ee1, l\u00e0m s\u1ea1ch tr\u1ee5c l\u0103n, \u00e9p n\u01b0\u1edbc, \u0111\u00e1nh b\u00f3ng v\u00e0 c\u00e1c c\u00f4ng \u0111o\u1ea1n kh\u00e1c l\u00e0 m\u1ed9t trong nh\u1eefng bi\u1ec7n ph\u00e1p quy tr\u00ecnh then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t cao c\u1ee7a s\u1ea3n ph\u1ea9m. Tr\u1ee5c l\u0103n b\u00e0n ch\u1ea3i nylon v\u00e0 tr\u1ee5c l\u0103n \u0111a n\u0103ng b\u1eb1ng v\u1ea3i kh\u00f4ng d\u1ec7t c\u00f3 h\u00e0ng lo\u1ea1t \u0111\u1eb7c t\u00ednh \u01b0u vi\u1ec7t. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ee7a t\u1ea5m v\u00e0 d\u1ea3i nh\u00f4m, v\u00e0 x\u1ee9ng \u0111\u00e1ng \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd.<\/p>\n