B\u0103ng t\u1ea3i Polyester<\/a><\/span> c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u0103ng t\u1ea3i EP, b\u0103ng t\u1ea3i ch\u1ecbu m\u00e0i m\u00f2n, b\u0103ng t\u1ea3i t\u1ef1 \u0111\u1ed9ng, b\u0103ng t\u1ea3i xi m\u0103ng. B\u0103ng t\u1ea3i polyester (b\u0103ng t\u1ea3i EP) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong than, khai th\u00e1c m\u1ecf, c\u1ea3ng, luy\u1ec7n kim, \u0111i\u1ec7n, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c \u0111\u1ec3 v\u1eadn chuy\u1ec3n v\u1eadt li\u1ec7u.<\/span><\/p>\nTheo c\u00e1c t\u00ednh ch\u1ea5t kh\u00e1c nhau c\u1ee7a cao su bao ph\u1ee7, n\u00f3 \u0111\u01b0\u1ee3c chia th\u00e0nh lo\u1ea1i ch\u1ecbu l\u1ea1nh, lo\u1ea1i ch\u1ecbu axit, lo\u1ea1i ch\u1ecbu ki\u1ec1m, lo\u1ea1i ch\u1ecbu d\u1ea7u, lo\u1ea1i ch\u1ecbu m\u00e0i m\u00f2n…<\/span><\/p>\nTheo t\u1eebng m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng kh\u00e1c nhau, ng\u01b0\u1eddi ta chia b\u0103ng t\u1ea3i cao su bao g\u1ed3m (lo\u1ea1i th\u00f4ng d\u1ee5ng, lo\u1ea1i ch\u1ecbu nhi\u1ec7t, lo\u1ea1i ch\u1ed1ng ch\u00e1y, lo\u1ea1i ch\u1ecbu ch\u00e1y, lo\u1ea1i ch\u1ecbu axit v\u00e0 ki\u1ec1m, lo\u1ea1i ch\u1ecbu d\u1ea7u), b\u0103ng t\u1ea3i ch\u1ecbu nhi\u1ec7t b\u0103ng t\u1ea3i, b\u0103ng t\u1ea3i ch\u1ecbu l\u1ea1nh, b\u0103ng t\u1ea3i ch\u1ecbu axit, ki\u1ec1m. B\u0103ng t\u1ea3i ch\u1ecbu d\u1ea7u v\u00e0 c\u00e1c d\u00f2ng m\u00e1y kh\u00e1c.<\/span><\/p>\n Trong \u0111\u00f3, \u0111\u1ed9 d\u00e0y t\u1ed1i thi\u1ec3u c\u1ee7a l\u1edbp cao su ph\u1ee7 tr\u00ean b\u0103ng t\u1ea3i th\u00f4ng th\u01b0\u1eddng l\u00e0 3,0mm v\u00e0 \u0111\u1ed9 d\u00e0y t\u1ed1i thi\u1ec3u c\u1ee7a l\u1edbp cao su ph\u1ee7 ph\u00eda d\u01b0\u1edbi l\u00e0 1,5mm; L\u1edbp keo t\u1ed1i thi\u1ec3u l\u00e0 2,0mm. Theo \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng, \u0111\u1ed9 d\u00e0y c\u1ee7a l\u1edbp keo ph\u1ee7 tr\u00ean v\u00e0 d\u01b0\u1edbi c\u00f3 th\u1ec3 t\u0103ng th\u00eam 1,5mm.<\/span><\/p>\nS\u1ef1 ch\u1ec9 r\u00f5:<\/strong><\/em><\/span><\/p>\n\n- (1) V\u1eadt li\u1ec7u c\u1ed1t l\u00f5i: EP100, EP150, EP200, EP250, EP300, EP350, EP400, EP450, EP500<\/span><\/li>\n
- (2) B\u0103ng th\u00f4ng: 100mm-3000mm<\/span><\/li>\n
- (3) L\u1edbp v\u1ea3i: 1-10 l\u1edbp<\/span><\/li>\n
- (4) Ph\u1ee7 keo: b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c: 0-10mm b\u1ec1 m\u1eb7t kh\u00f4ng l\u00e0m vi\u1ec7c: 0-6mm<\/span><\/li>\n<\/ul>\n
<\/span>M\u1ed9t s\u1ed1 lo\u1ea1i b\u0103ng t\u1ea3i kh\u00e1c<\/strong><\/em><\/span><\/span><\/h3>\nB\u0103ng t\u1ea3i l\u00f5i v\u1ea3i l\u00e0 t\u00ean vi\u1ebft t\u1eaft c\u1ee7a b\u0103ng t\u1ea3i l\u00f5i v\u1ea3i x\u1ebfp l\u1edbp, l\u00e0 lo\u1ea1i b\u0103ng t\u1ea3i th\u00f4ng d\u1ee5ng nh\u1ea5t tr\u00ean th\u1ecb tr\u01b0\u1eddng, c\u00e1c l\u00f5i v\u1ea3i th\u00f4ng d\u1ee5ng \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn l\u00e0 cotton (CC), nylon (NN) v\u00e0 polyester (EP).<\/span><\/p>\nB\u0103ng t\u1ea3i EP<\/span><\/figcaption><\/figure>\n\n- B\u0103ng t\u1ea3i b\u00f4ng th\u00f4ng d\u1ee5ng h\u1ea7u h\u1ebft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u1eadn chuy\u1ec3n nguy\u00ean li\u1ec7u c\u1ef1 ly trung b\u00ecnh v\u00e0 ng\u1eafn.<\/span><\/li>\n
- B\u0103ng t\u1ea3i nylon c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m l\u00e0 \u0111\u00e0n h\u1ed3i t\u1ed1t, th\u00e2n b\u0103ng nh\u1eb9, h\u00ecnh r\u00e3nh \u0111\u1eb9p n\u00ean h\u1ea7u h\u1ebft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u1eadn chuy\u1ec3n \u0111\u01b0\u1eddng d\u00e0i v\u00e0 trung b\u00ecnh.<\/span><\/li>\n
- B\u0103ng t\u1ea3i polyester c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m l\u00e0 ch\u1ecbu va \u0111\u1eadp t\u1ed1t v\u00e0 \u1ed5n \u0111\u1ecbnh, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u1eadn chuy\u1ec3n \u0111\u01b0\u1eddng d\u00e0i, kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn v\u00e0 v\u1eadn chuy\u1ec3n nhanh.<\/span><\/li>\n
- B\u0103ng t\u1ea3i l\u00f5i v\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong th\u1ef1c ph\u1ea9m, v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng, \u0111\u00fac, khai th\u00e1c m\u1ecf, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, than \u0111\u00e1, \u0111i\u1ec7n n\u0103ng, luy\u1ec7n kim v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c.<\/span><\/li>\n<\/ul>\n
Th\u00f4ng th\u01b0\u1eddng b\u0103ng t\u1ea3i c\u00f3 c\u1ea5u t\u1ea1o g\u1ed3m 3 ph\u1ea7n: l\u1edbp keo ph\u1ee7 b\u00ean tr\u00ean (b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c), l\u1edbp l\u00f5i v\u1ea3i (th\u01b0\u1eddng c\u1ea5u t\u1ea1o t\u1eeb 3-6 l\u1edbp l\u00f5i v\u1ea3i t\u00f9y theo \u0111i\u1ec1u ki\u1ec7n v\u1eadn chuy\u1ec3n) v\u00e0 l\u1edbp keo ph\u1ee7 b\u00ean d\u01b0\u1edbi (b\u1ec1 m\u1eb7t kh\u00f4ng l\u00e0m vi\u1ec7c ). K\u1ebft c\u1ea5u n\u00f3i chung l\u00e0 ki\u1ec3u qu\u1ea5n (m\u00e9p d\u00e1n), ho\u1eb7c c\u00f3 th\u1ec3 ch\u1ebf t\u1ea1o ki\u1ec3u c\u1eaft (m\u00e9p c\u1eaft g\u1ecdn, m\u1eb7t c\u1eaft th\u1ec3 hi\u1ec7n r\u00f5 k\u1ebft c\u1ea5u s\u1ea3n ph\u1ea9m).<\/span><\/p>\nB\u0103ng t\u1ea3i l\u00e0 b\u1ed9 ph\u1eadn quan tr\u1ecdng nh\u1ea5t trong h\u1ec7 th\u1ed1ng b\u0103ng t\u1ea3i, kh\u00f4ng ch\u1ec9 t\u1ed1n k\u00e9m m\u00e0 c\u00f2n ph\u1ea3i ti\u00eau hao, ch\u00fang t\u00f4i s\u1ebd t\u1eadn t\u00e2m th\u1ef1c hi\u1ec7n theo nhu c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a b\u0103ng t\u1ea3i.<\/span><\/p>\n<\/span>T\u00ednh n\u0103ng s\u1ea3n ph\u1ea9m b\u0103ng t\u1ea3i polyester<\/strong><\/em><\/span><\/span><\/h3>\n\n- 1. \u0110\u1ed9 b\u1ec1n cao, th\u00e2n \u0111ai m\u1ecfng, tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9<\/span><\/li>\n
- 2. S\u1eed d\u1ee5ng v\u1ea3i nh\u00fang EP l\u00e0m v\u1eadt li\u1ec7u khung x\u01b0\u01a1ng<\/span><\/li>\n
- 3. Th\u00e2n \u0111ai m\u1ec1m m\u1ea1i, c\u00f3 r\u00e3nh t\u1ea1o r\u00e3nh v\u00e0 \u0111\u00e0n h\u1ed3i t\u1ed1t<\/span><\/li>\n
- 4. Ch\u1ed1ng va \u0111\u1eadp, ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng \u0103n m\u00f2n<\/span><\/li>\n
- 5. N\u00f3 ph\u00f9 h\u1ee3p cho vi\u1ec7c v\u1eadn chuy\u1ec3n v\u1eadt li\u1ec7u c\u00f3 t\u1ea3i tr\u1ecdng l\u1edbn, t\u1ed1c \u0111\u1ed9 cao v\u00e0 kho\u1ea3ng c\u00e1ch trung b\u00ecnh v\u00e0 d\u00e0i<\/span><\/li>\n
- 6. Ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru, kh\u00f4ng sai l\u1ec7ch<\/span><\/li>\n<\/ul>\n
B\u0103ng t\u1ea3i v\u1ea3i b\u1ed1<\/span><\/figcaption><\/figure>\n<\/span>Ti\u00eau chu\u1ea9n \u0111i\u1ec1u h\u00e0nh: GB \/ T7984-2001<\/strong><\/em><\/span><\/span><\/h3>\nGi\u1edbi thi\u1ec7u \u0111\u1ebfn b\u1ea1n \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u1ed9t s\u1ed1 lo\u1ea1i v\u1eadt li\u1ec7u cao su th\u00f4ng d\u1ee5ng l\u00e0m b\u0103ng t\u1ea3i. N\u00f3i chung, c\u00e1c v\u1eadt li\u1ec7u cao su \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c nhau c\u1ee7a b\u0103ng t\u1ea3i bao g\u1ed3m cao su b\u1ecdc, cao su \u0111\u1ec7m, keo ch\u00e0 x\u00e1t l\u1edbp v\u1ea3i v\u00e0 keo d\u00e1n l\u1edbp v\u1ea3i.<\/span><\/p>\nLo\u1ea1i th\u1ee9 nh\u1ea5t: B\u0103ng t\u1ea3i b\u1ecdc cao su ch\u1ecbu t\u00e1c \u0111\u1ed9ng, m\u00e0i m\u00f2n c\u1ee7a vi sinh v\u1eadt, c\u0169ng nh\u01b0 c\u00e1c t\u00e1c \u0111\u1ed9ng l\u00e3o h\u00f3a kh\u00e1c nhau khi s\u1eed d\u1ee5ng. Do \u0111\u00f3, l\u1edbp keo ph\u1ee7 \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o t\u1ed1t (\u226518Mpa) v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n (l\u01b0\u1ee3ng m\u00e0i m\u00f2n 0,8cm3 \/ 1,61Km), ch\u1ed1ng l\u00e3o h\u00f3a v\u00e0 ch\u1ed1ng x\u00f3i m\u00f2n sinh h\u1ecdc.<\/span><\/p>\nNgo\u00e0i ra, n\u00f3 c\u0169ng y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt t\u1ed1t nh\u01b0 \u0111\u1ed9 nh\u1edbt, c\u00e1c \u0111i\u1ec3m ch\u00ednh c\u1ee7a thi\u1ebft k\u1ebf c\u00f4ng th\u1ee9c nh\u01b0 sau: cao su nguy\u00ean li\u1ec7u ch\u1ee7 y\u1ebfu l\u00e0 cao su thi\u00ean nhi\u00ean ho\u1eb7c m\u1ed9t l\u01b0\u1ee3ng th\u00edch h\u1ee3p cao su styren-butadien \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u00e0 cao su n\u1ed9i dung \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c 50% ~ 55%. H\u1ec7 th\u1ed1ng l\u01b0u h\u00f3a s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng k\u1ebft h\u1ee3p truy\u1ec1n th\u1ed1ng gi\u1eefa l\u01b0u hu\u1ef3nh v\u00e0 ch\u1ea5t x\u00fac ti\u1ebfn. Trong c\u00f4ng th\u1ee9c cao su thi\u00ean nhi\u00ean, l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh chi\u1ebfm kho\u1ea3ng 2,5 ph\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng; trong c\u00f4ng th\u1ee9c c\u1ee7a cao su styren-butadien, l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh l\u00e0 1,5-2,0 ph\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng.<\/span><\/p>\nM\u00e1y gia t\u1ed1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi M v\u00e0 DM v\u00e0 m\u00e1y gia t\u1ed1c sau t\u00e1c d\u1ee5ng nh\u01b0 m\u00e1y gia t\u1ed1c CZ v\u00e0 NOBS th\u00edch h\u1ee3p cho c\u00e1c h\u1ee3p ch\u1ea5t cao su c\u00f3 ch\u1ee9a cao su styren-butadien. Ch\u1ea5t gia c\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn t\u1eeb carbon \u0111en ch\u1ecbu m\u00e0i m\u00f2n cao, carbon \u0111en trung b\u00ecnh v\u00e0 si\u00eau ch\u1ecbu m\u00e0i m\u00f2n v\u00e0 li\u1ec1u l\u01b0\u1ee3ng l\u00e0 40-50 ph\u1ea7n theo kh\u1ed1i l\u01b0\u1ee3ng. C\u00e1c ch\u1ea5t l\u00e0m m\u1ec1m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 d\u1ea7u h\u1eefu c\u01a1, d\u1ea7u n\u1eb7ng, nh\u1ef1a th\u00f4ng, nh\u1ef1a coumarone v\u00e0 nh\u1ef1a d\u1ea7u m\u1ecf.<\/span><\/p>\nLo\u1ea1i th\u1ee9 hai: B\u0103ng t\u1ea3i cao su \u0111\u1ec7m cao su \u0111\u1ec7m n\u1eb1m gi\u1eefa cao su v\u1ecf v\u00e0 l\u1edbp l\u00f5i d\u00e2y \u0111ai, c\u00f3 t\u00e1c d\u1ee5ng t\u0103ng \u0111\u1ed9 b\u00e1m d\u00ednh gi\u1eefa hai l\u1edbp, h\u1ea5p th\u1ee5 v\u00e0 ph\u00e2n t\u00e1n l\u1ef1c t\u00e1c \u0111\u1ed9ng c\u1ee7a v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n t\u1ea3i, \u0111\u00f3ng vai tr\u00f2 \u0111\u1ec7m. Keo d\u00e1n y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 \u0111\u1ed9 b\u00e1m d\u00ednh t\u1ed1t (\u0111\u1ed9 d\u00ednh gi\u1eefa keo v\u00e0 v\u1ea3i \u22653,15N \/ mm), \u0111\u1ed9 \u0111\u00e0n h\u1ed3i cao, sinh nhi\u1ec7t th\u1ea5p, t\u1ea3n nhi\u1ec7t t\u1ed1t v\u00e0 hi\u1ec7u su\u1ea5t qu\u00e1 tr\u00ecnh t\u1ed1t.<\/span><\/p>\nCao su th\u00f4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi cao su t\u1ef1 nhi\u00ean v\u00e0 cao su butadien, v\u1edbi h\u00e0m l\u01b0\u1ee3ng cao su t\u1eeb 50% \u0111\u1ebfn 55%. H\u1ec7 th\u1ed1ng l\u01b0u h\u00f3a n\u00ean \u0111\u01b0\u1ee3c pha ch\u1ebf v\u1edbi h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh th\u1ea5p \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00e1m d\u00ednh gi\u1eefa l\u1edbp keo v\u00e0 l\u1edbp v\u1ea3i. M\u00e1y gia t\u1ed1c s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng k\u1ebft h\u1ee3p c\u1ee7a M, DM v\u00e0 TMTD. M\u00e0u \u0111en carbon th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao v\u00e0 carbon \u0111en b\u00e1n gia c\u1ed1 v\u00e0 s\u1ed1 l\u01b0\u1ee3ng kh\u00f4ng \u0111\u01b0\u1ee3c qu\u00e1 nhi\u1ec1u, th\u01b0\u1eddng kho\u1ea3ng 10 ph\u1ea7n theo kh\u1ed1i l\u01b0\u1ee3ng. Ch\u1ea5t l\u00e0m m\u1ec1m \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb c\u00e1c lo\u1ea1i c\u00f3 \u0111\u1ed9 nh\u1edbt t\u1ed1t h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1ef1a th\u00f4ng, coumarone r\u1eafn.<\/span><\/p>\nLo\u1ea1i th\u1ee9 ba: Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a b\u0103ng t\u1ea3i keo ch\u00e0 l\u00e0 k\u1ebft d\u00ednh l\u1edbp b\u1ea1t l\u00f5i th\u00e0nh m\u1ed9t t\u1ed5ng th\u1ec3. Y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 \u0111\u1ed9 b\u00e1m d\u00ednh t\u1ed1t v\u1edbi v\u1eadt li\u1ec7u l\u00f5i (c\u01b0\u1eddng \u0111\u1ed9 b\u00e1m d\u00ednh gi\u1eefa v\u1ea3i v\u00e0 v\u1ea3i kh\u00f4ng nh\u1ecf h\u01a1n 4,5N \/ mm), ch\u1ecbu m\u1ecfi (s\u1ed1 l\u1ea7n u\u1ed1n c\u1ee7a l\u1edbp v\u1ea3i \u2265 25.000 l\u1ea7n \/ l\u1ea7n b\u00f3c to\u00e0n b\u1ed9) v\u00e0 ph\u1ea3i c\u00f3 \u0111\u1ee7 \u0110\u1ed9 d\u1ebbo (\u0111\u1ed9 d\u1ebbo 0,5 ~ 0,6) v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a qu\u00e1 tr\u00ecnh nh\u01b0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y x\u00e9m.<\/span><\/p>\nTh\u1ee9 t\u01b0: cao su th\u00f4 ch\u1ee7 y\u1ebfu l\u00e0 cao su t\u1ef1 nhi\u00ean v\u00e0 20 ~ 30 ph\u1ea7n theo kh\u1ed1i l\u01b0\u1ee3ng l\u00e0 cao su styren-butadien \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 h\u00e0m l\u01b0\u1ee3ng cao su kho\u1ea3ng 50%. H\u1ec7 th\u1ed1ng l\u01b0u h\u00f3a c\u0169ng gi\u1ed1ng nh\u01b0 h\u1ec7 th\u1ed1ng l\u01b0u hu\u1ef3nh v\u00e0 ch\u1ea5t x\u00fac ti\u1ebfn n\u00f3i chung. Ch\u1ea5t x\u00fac ti\u1ebfn th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi M v\u00e0 DM, ho\u1eb7c m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf TMTD \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 l\u01b0u h\u00f3a, nh\u01b0ng c\u1ea7n c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh cao su b\u1ecb ch\u00e1y x\u00e9m. M\u00e0u \u0111en carbon ph\u1ea3i l\u00e0 carbon \u0111en b\u00e1n gia c\u1ed1 ho\u1eb7c carbon \u0111en m\u1ec1m kh\u00e1c v\u00e0 li\u1ec1u l\u01b0\u1ee3ng kho\u1ea3ng 10 ph\u1ea7n theo kh\u1ed1i l\u01b0\u1ee3ng. C\u1ea7n t\u0103ng l\u01b0\u1ee3ng nh\u1ef1a coumaron v\u00e0 nh\u1ef1a d\u1ea7u m\u1ecf m\u1ed9t c\u00e1ch th\u00edch h\u1ee3p \u0111\u1ec3 xoa keo tr\u1ed9n v\u1edbi cao su styren-buta\u0111ien, n\u1ebfu kh\u00f4ng \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a l\u1edbp v\u1ea3i s\u1ebd b\u1ecb gi\u1ea3m.<\/span><\/p>\nB\u0103ng t\u1ea3i gi\u00e1 r\u1ebb<\/span><\/figcaption><\/figure>\n<\/span>C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n chung b\u0103ng t\u1ea3i polyester<\/strong><\/em><\/span><\/span><\/h3>\nC\u00f4ng th\u1ee9c t\u00ednh chi\u1ec1u d\u00e0i kh\u1edbp n\u1ed1i b\u0103ng t\u1ea3i nh\u01b0 sau:<\/span><\/p>\nL = L + (n-1) S + 1 \/ 2B (\u0111\u01a1n)<\/span>
\nL = M [L + (n-1) S] + 1 \/ 2B (nhi\u1ec1u)<\/span><\/p>\nTrong c\u00f4ng th\u1ee9c, chu vi b\u00ean trong c\u1ee7a b\u0103ng t\u1ea3i v\u00f4 t\u1eadn (m)<\/span><\/p>\nB – chi\u1ec1u r\u1ed9ng b\u0103ng t\u1ea3i (m)<\/span>
\nn – s\u1ed1 l\u1edbp v\u1ea3i<\/span>
\ns – Chi\u1ec1u d\u00e0i ch\u00eanh l\u1ec7ch c\u1ee7a m\u1ed7i l\u1edbp v\u1ea3i (m)<\/span>
\nM – s\u1ed1 l\u01b0\u1ee3ng b\u0103ng t\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i<\/span><\/p>\n<\/span>\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/strong><\/em><\/span><\/span><\/h3>\n\n- \u00a0V\u1eadt li\u1ec7u c\u1ed1t l\u00f5i: EP100, EP150, EP200, EP250, EP300, EP350, EP400, EP450, EP500<\/span><\/li>\n
- \u00a0B\u0103ng th\u00f4ng: 100mm-3000mm<\/span><\/li>\n
- \u00a0L\u1edbp v\u1ea3i: 1-10 l\u1edbp<\/span><\/li>\n
- \u00a0Ph\u1ee7 keo: b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c: 0-10mm b\u1ec1 m\u1eb7t kh\u00f4ng l\u00e0m vi\u1ec7c: 0-6mm<\/span><\/li>\n<\/ul>\n
<\/span>C\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a l\u1edbp ph\u1ee7 c\u1ee7a b\u0103ng t\u1ea3i polyester:<\/strong><\/em><\/span><\/span><\/h4>\n\n\n\nM\u1ee9c hi\u1ec7u su\u1ea5t l\u1edbp ph\u1ee7<\/span><\/td>\n | \u0110\u1ed9 b\u1ec1n k\u00e9o Mpa \u2265<\/span><\/td>\n | \u0110\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t% \u2265<\/span><\/td>\n | T\u1ef7 l\u1ec7 m\u00e0i m\u00f2n mm 3 \u2264<\/span><\/td>\n | T\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i c\u1ee7a \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t sau khi l\u00e3o h\u00f3a \u1edf 70 o C \u00d7 168h<\/span><\/td>\n<\/tr>\n\nLo\u1ea1i x\u01b0\u1edbc m\u1ea1nh<\/span><\/td>\n | 24.0<\/span><\/td>\n | 450<\/span><\/td>\n | 120<\/span><\/td>\n | \u2013 25 ~+25<\/span><\/td>\n<\/tr>\n\nLo\u1ea1i m\u1eb7c m\u1ea1nh<\/span><\/td>\n | 18.0<\/span><\/td>\n | 400<\/span><\/td>\n | 100<\/span><\/td>\n | \u2013 25 ~+25<\/span><\/td>\n<\/tr>\n\nChung<\/span><\/td>\n | 15.0<\/span><\/td>\n | 350<\/span><\/td>\n | 200<\/span><\/td>\n | \u2013 25 ~+25<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/span>C\u01b0\u1eddng \u0111\u1ed9 li\u00ean k\u1ebft l\u1edbp: (Gi\u00e1 tr\u1ecb \u0111\u1ec9nh cao nh\u1ea5t c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c m\u1eabu kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 20N \/ mm)<\/strong><\/em><\/span><\/span><\/h4>\n\n\n\nD\u1ef1 \u00e1n<\/span><\/td>\n | L\u1edbp xen k\u1ebd<\/span><\/td>\n | Gi\u1eefa l\u1edbp b\u00eca v\u00e0 l\u1edbp v\u1ea3i<\/span><\/td>\n | Gi\u1eefa l\u1edbp b\u00eca v\u00e0 l\u1edbp v\u1ea3i<\/span><\/td>\n<\/tr>\n\nD\u1ef1 \u00e1n<\/span><\/td>\n | L\u1edbp xen k\u1ebd<\/span><\/td>\n | \u0110\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 0.8 ~ 1.5mm<\/span><\/td>\n | \u0110\u1ed9 d\u00e0y l\u1edbp ph\u1ee7> 1,5 mm<\/span><\/td>\n<\/tr>\n\nGi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c m\u1eabu N \/ mm \u2265<\/span><\/td>\n | 4.5<\/span><\/td>\n | 3.2<\/span><\/td>\n | 3.5<\/span><\/td>\n<\/tr>\n\nGi\u00e1 tr\u1ecb \u0111\u1ec9nh th\u1ea5p nh\u1ea5t c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c m\u1eabu N \/ mm \u2265<\/span><\/td>\n | 3.9<\/span><\/td>\n | 2.4<\/span><\/td>\n | 2.9<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/span>Lo\u1ea1i ch\u1ea5t ch\u1ed1ng ch\u00e1y chung \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ti\u00eau chu\u1ea9n GB10822-89. T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a l\u1edbp bao ph\u1ee7:<\/strong><\/em><\/span><\/span><\/h4>\n\n\n\n\u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a l\u1edbp ph\u1ee7 Mpa kh\u00f4ng nh\u1ecf h\u01a1n<\/span><\/td>\n | 10<\/span><\/td>\n<\/tr>\n\n\u0110\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t% kh\u00f4ng nh\u1ecf h\u01a1n<\/span><\/td>\n | 350<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n L\u01b0u \u00fd: \u0110ai ch\u1ed1ng ch\u00e1y chung c\u00f3 \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 nh\u1ecf h\u01a1n 2,0mm kh\u00f4ng c\u00f3 y\u00eau c\u1ea7u v\u1ec1 t\u00ednh n\u0103ng v\u1eadt l\u00fd \u0111\u1ed1i v\u1edbi l\u1edbp ph\u1ee7<\/span><\/p>\n<\/span>\u0110\u1ed9 b\u1ec1n li\u00ean k\u1ebft gi\u1eefa c\u00e1c l\u1edbp:<\/strong><\/em><\/span><\/span><\/h4>\n\n\n\nM\u1ee5c ch\u1ec9 b\u00e1o<\/span><\/td>\n | L\u1edbp xen k\u1ebd<\/span><\/td>\n | Gi\u1eefa l\u1edbp b\u00eca v\u00e0 l\u1edbp v\u1ea3i<\/span><\/td>\n | Gi\u1eefa l\u1edbp b\u00eca v\u00e0 l\u1edbp v\u1ea3i<\/span><\/td>\n<\/tr>\n\n<\/td>\n | L\u1edbp xen k\u1ebd<\/span><\/td>\n | \u0110\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 \u2264 1,5 mm<\/span><\/td>\n | L\u1edbp ph\u1ee7> 1,5 mm<\/span><\/td>\n<\/tr>\n\nGi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a m\u1eabu d\u1ecdc kh\u00f4ng nh\u1ecf h\u01a1n<\/span><\/td>\n | 5.0<\/span><\/td>\n | 3.5N\/mm<\/span><\/td>\n | 3.9 N\/mm<\/span><\/td>\n<\/tr>\n\nGi\u00e1 tr\u1ecb \u0111\u1ec9nh th\u1ea5p nh\u1ea5t c\u1ee7a m\u1eabu th\u1eed d\u1ecdc kh\u00f4ng nh\u1ecf h\u01a1n<\/span><\/td>\n | 3.9<\/span><\/td>\n | 2.4 N\/mm<\/span><\/td>\n | 2.9 N\/mm<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/span> | | | | | | | | | | | | | |