{"id":31583,"date":"2026-03-03T19:01:43","date_gmt":"2026-03-03T13:31:43","guid":{"rendered":"http:\/\/microtexindia.com\/pvc-tach\/"},"modified":"2026-03-03T11:48:26","modified_gmt":"2026-03-03T06:18:26","slug":"pvc-tach","status":"publish","type":"post","link":"https:\/\/microtexindia.com\/vi\/pvc-tach\/","title":{"rendered":"Ph\u00e2n c\u00e1ch PVC"},"content":{"rendered":"\t\t
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PVC ng\u0103n c\u00e1ch l\u00e0 g\u00ec?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Ng\u0103n c\u00e1ch PVC l\u00e0 c\u00e1c m\u00e0ng ng\u0103n x\u1ed1p si\u00eau nh\u1ecf \u0111\u01b0\u1ee3c \u0111\u1eb7t gi\u1eefa c\u00e1c b\u1ea3n c\u1ef1c \u00e2m v\u00e0 d\u01b0\u01a1ng c\u1ee7a pin axit-ch\u00ec \u0111\u1ec3 ng\u0103n c\u1ea3n m\u1ecdi s\u1ef1 ti\u1ebfp x\u00fac gi\u1eefa ch\u00fang nh\u1eb1m tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong nh\u01b0ng \u0111\u1ed3ng th\u1eddi cho ph\u00e9p ch\u1ea5t \u0111i\u1ec7n ph\u00e2n l\u01b0u th\u00f4ng t\u1ef1 do. Lo\u1ea1i B\u1ed9 t\u00e1ch pin n\u00e0y c\u00f3 k\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i \u0111a d\u01b0\u1edbi 50 micron m\u00e9t v\u00e0 \u0111i\u1ec7n tr\u1edf th\u1ea5p h\u01a1n d\u01b0\u1edbi 0,16 ohm \/ cm vu\u00f4ng. B\u1ed9 ph\u00e2n c\u00e1ch PVC<\/a> c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ed3ng nh\u1ea5t, kh\u00f4ng c\u00f3 l\u1ed7, g\u00f3c g\u00e3y, v\u1ebft t\u00e1ch, v\u1eadt li\u1ec7u l\u1ea1 nh\u00fang v\u00e0o, v\u1ee1 b\u1ec1 m\u1eb7t, khuy\u1ebft t\u1eadt v\u1eadt l\u00fd, v.v. C\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch PVC c\u00f3 \u0111i\u1ec7n tr\u1edf r\u1ea5t th\u1ea5p gi\u00fap gi\u1ea3m t\u1ed5n th\u1ea5t b\u00ean trong, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a pin. \u0110\u00e2y l\u00e0 m\u1ed9t nguy\u00ean li\u1ec7u th\u00f4 axit ch\u00ec thi\u1ebft y\u1ebfu<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a pin pvc ng\u0103n c\u00e1ch<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u0110\u1ed9 x\u1ed1p cao trong b\u1ed9 ph\u00e2n t\u00e1ch PVC \u0111\u1ea3m b\u1ea3o d\u1ec5 d\u00e0ng khu\u1ebfch t\u00e1n ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c ion, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t c\u1ee7a pin ngay c\u1ea3 \u1edf t\u1ed1c \u0111\u1ed9 ph\u00f3ng \u0111i\u1ec7n cao. Ho\u00e0n to\u00e0n kh\u00f4ng ph\u1ea3n \u1ee9ng v\u1edbi axit, kim lo\u1ea1i ho\u1ea1t \u0111\u1ed9ng v\u00e0 kh\u00ed th\u1ea3i ra, N\u00f3 n\u00e2ng cao tu\u1ed5i th\u1ecd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a pin axit-ch\u00ec v\u00e0 l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho Pin d\u1ea1ng \u1ed1ng v\u1edbi tu\u1ed5i th\u1ecd pin \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u00e0 15 n\u0103m – B\u1ed9 t\u00e1ch PVC s\u1ebd kh\u00f4ng ph\u00e2n h\u1ee7y kh\u00f4ng gi\u1ed1ng nh\u01b0 m\u1ed9t s\u1ed1 c\u00e1c lo\u1ea1i t\u00e1ch pin kh\u00e1c.
V\u00ec nh\u1eefng l\u1ee3i \u00edch to l\u1edbn n\u00e0y, b\u1ed9 ph\u00e2n t\u00e1ch PVC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ed9c quy\u1ec1n \u1edf nh\u1eefng n\u01a1i tu\u1ed5i th\u1ecd c\u1ee7a pin r\u1ea5t d\u00e0i nh\u01b0 trong Pin Plant\u00e8, Pin d\u1ea1ng gel h\u00ecnh \u1ed1ng, Pin OPzS b\u1ecb ng\u1eadp v\u00e0 T\u1ebf b\u00e0o Nickel Cadmium b\u1ecb ng\u1eadp.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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C\u00e1c T\u1ebf b\u00e0o V\u0103n ph\u00f2ng ph\u1ea9m OPzS<\/a> \u0111\u01b0\u1ee3c \u0111\u1ef1ng trong c\u00e1c th\u00f9ng ch\u1ee9a SAN trong su\u1ed1t v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c \u1ee9ng d\u1ee5ng Vi\u1ec5n th\u00f4ng, Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft v\u00e0 \u0111i\u1ec1u khi\u1ec3n & N\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, Nh\u00e0 m\u00e1y \u0111i\u1ec7n v\u00e0 tr\u1ea1m bi\u1ebfn \u00e1p, \u0110i\u1ec7n gi\u00f3, th\u1ee7y \u0111i\u1ec7n & n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, Ngu\u1ed3n \u0111i\u1ec7n kh\u1ea9n c\u1ea5p – H\u1ec7 th\u1ed1ng UPS, B\u00e1o hi\u1ec7u \u0111\u01b0\u1eddng s\u1eaft.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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B\u1ed9 t\u00e1ch pin PVC - m\u1ed9t \u0111\u00e1nh gi\u00e1<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Microtex l\u00e0 nh\u00e0 cung c\u1ea5p c\u00e1c b\u1ed9 ph\u1eadn pin v\u00e0 l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch PVC h\u00e0ng \u0111\u1ea7u \u1edf \u1ea4n \u0110\u1ed9 v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch pin \u0111\u01b0\u1ee3c ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean v\u00e0 v\u01b0\u1ee3t qua Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt IS: 6071: 1986. M\u00e1y t\u00e1ch nh\u1ef1a PVC l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n cho th\u1ecb tr\u01b0\u1eddng m\u00e1y t\u00e1ch pin axit-ch\u00ec \u1edf \u1ea4n \u0110\u1ed9 v\u1edbi th\u01b0\u01a1ng hi\u1ec7u MICROTEX v\u1edbi b\u00ed quy\u1ebft ri\u00eang c\u1ee7a c\u00f4ng ty v\u00e0 v\u1edbi m\u00e1y m\u00f3c \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf b\u1ea3n \u0111\u1ecba c\u00e1ch \u0111\u00e2y 50 n\u0103m. Nh\u00e0 m\u00e1y v\u00e0 m\u00e1y m\u00f3c bao g\u1ed3m m\u00e1y thi\u00eau k\u1ebft v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00e1c, v\u1edbi m\u00e1y ph\u00e1t \u0111i\u1ec7n ri\u00eang, \u0111\u1ec3 s\u1ea3n xu\u1ea5t tr\u01a1n tru v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u01a1n m\u1ed9t tr\u0103m tri\u1ec7u m\u00e1y ph\u00e2n t\u00e1ch m\u1ed7i n\u0103m, l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e1y t\u00e1ch PVC l\u1edbn nh\u1ea5t v\u00e0 n\u1ed5i ti\u1ebfng nh\u1ea5t \u1edf \u1ea4n \u0110\u1ed9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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B\u1ed9 ph\u00e2n t\u00e1ch PVC vi x\u1ed1p MICROTEX \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo c\u1ea3 k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n v\u00e0 t\u00f9y ch\u1ec9nh cho c\u00e1c \u1ee9ng d\u1ee5ng \u1eafc quy axit-ch\u00ec \u00f4 t\u00f4 v\u00e0 c\u00f4ng nghi\u1ec7p. M\u1ed7i m\u00e1y t\u00e1ch PVC \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u0111\u1ec1u \u0111\u01b0\u1ee3c ki\u1ec3m tra tr\u1ef1c quan tr\u01b0\u1edbc khi \u0111\u00f3ng g\u00f3i. Th\u1eed nghi\u1ec7m v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo t\u1eebng \u0111\u1ee3t trong ph\u00f2ng th\u00ed nghi\u1ec7m hi\u1ec7n \u0111\u1ea1i c\u1ee7a ch\u00fang t\u00f4i. v\u1eadt li\u1ec7u t\u00e1ch pin l\u00e0 t\u1eeb PVC s\u1ea1ch v\u00e0 tinh khi\u1ebft v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc. Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf c\u00e1c giai \u0111o\u1ea1n quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec3 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng nh\u1ea5t qu\u00e1n cao. Gi\u00e1 b\u1ed9 t\u00e1ch pin chi\u1ebfm m\u1ed9t ph\u1ea7n r\u1ea5t nh\u1ecf trong chi ph\u00ed c\u1ee7a to\u00e0n b\u1ed9 pin.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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MICROTEX PVC ph\u00e2n t\u00e1ch, k\u1ebft h\u1ee3p c\u00e1c \u0111\u1eb7c t\u00ednh n\u1ed5i b\u1eadt c\u1ee7a \u0111i\u1ec7n tr\u1edf th\u1ea5p, \u0111\u1ed9 s\u1ea1ch h\u00f3a h\u1ecdc, \u0111\u1ed9 x\u1ed1p cao h\u01a1n, k\u00edch th\u01b0\u1edbc l\u1ed7 r\u1ed7ng th\u1ea5p, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao v\u00e0 v\u1edbi m\u1ee9c \u0111\u1ed9 t\u1ed1i thi\u1ec3u c\u1ee7a c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 d\u1ec5 b\u1ecb oxy h\u00f3a, l\u00e0m cho ch\u00fang c\u1ef1c k\u1ef3 h\u1eefu \u00edch cho \u00f4 t\u00f4, pin k\u00e9o, \u1eafc quy bi\u1ebfn t\u1ea7n, UPS & c\u1ed1 \u0111\u1ecbnh, chi\u1ebfu s\u00e1ng xe l\u1eeda v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i pin axit-ch\u00ec kh\u00e1c bao g\u1ed3m c\u1ea3 pin Tubular gel cao c\u1ea5p v\u1edbi tu\u1ed5i th\u1ecd \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf tr\u00ean 15 n\u0103m.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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B\u1ed9 ph\u00e2n t\u00e1ch pin PVC v\u1edbi c\u00e1c c\u1ea5u h\u00ecnh kh\u00e1c nhau<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Quy tr\u00ecnh s\u1ea3n xu\u1ea5t b\u1ed9 t\u00e1ch pin PVC<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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M\u00e1y t\u00e1ch nh\u1ef1a PVC MICROTEX \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c b\u1ea3n th\u00e2n h\u01a1n 50 n\u0103m v\u1edbi nh\u1eefng kh\u00e1ch h\u00e0ng trung th\u00e0nh. N\u0103m th\u1eadp k\u1ef7 kinh nghi\u1ec7m c\u00f9ng v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t hi\u1ec7n \u0111\u1ea1i \u0111\u00e3 \u0111\u01b0a MICROTEX tr\u1edf th\u00e0nh nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch PVC h\u00e0ng \u0111\u1ea7u t\u1ea1i \u1ea4n \u0110\u1ed9. Ch\u00eca kh\u00f3a d\u1eabn \u0111\u1ebfn v\u1ecb tr\u00ed h\u00e0ng \u0111\u1ea7u c\u1ee7a h\u1ecd trong ng\u00e0nh ph\u00e2n t\u00e1ch l\u00e0 \u0111\u1ed5i m\u1edbi c\u00f4ng ngh\u1ec7, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 d\u1ecbch v\u1ee5. B\u1ed9 t\u00e1ch PVC MICROTEX, k\u1ebft h\u1ee3p c\u00e1c \u0111\u1eb7c t\u00ednh n\u1ed5i b\u1eadt c\u1ee7a \u0111i\u1ec7n tr\u1edf th\u1ea5p, \u0111\u1ed9 s\u1ea1ch h\u00f3a h\u1ecdc, \u0111\u1ed9 x\u1ed1p cao h\u01a1n, k\u00edch th\u01b0\u1edbc l\u1ed7 r\u1ed7ng th\u1ea5p, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao v\u00e0 v\u1edbi m\u1ee9c \u0111\u1ed9 t\u1ed1i thi\u1ec3u c\u1ee7a c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 d\u1ec5 b\u1ecb oxy h\u00f3a, l\u00e0m cho ch\u00fang c\u1ef1c k\u1ef3 h\u1eefu d\u1ee5ng cho \u00f4 t\u00f4, s\u1ee9c k\u00e9o, c\u1ed1 \u0111\u1ecbnh, chi\u1ebfu s\u00e1ng xe l\u1eeda, \u0111\u1ea7u m\u00e1y xe l\u1eeda c\u00e1c \u1ee9ng d\u1ee5ng kh\u1edfi \u0111\u1ed9ng v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i pin axit-ch\u00ec kh\u00e1c.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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N\u1ed9i dung t\u00e1ch pin PVC \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng g\u00ec?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Nguy\u00ean li\u1ec7u:
1.PVC b\u1ed9t (Nh\u1eadp kh\u1ea9u- L\u1edbp \u0111i\u1ec7n h\u00f3a)
2. Th\u00e0nh ph\u1ea7n quy tr\u00ecnh tr\u1ed9n b\u1ed9t (lo\u1ea1i \u0111\u1eb7c bi\u1ec7t trong nh\u00e0)
B\u1ed9t PVC h\u1ed7n h\u1ee3p \u0111\u01b0\u1ee3c s\u00e0ng v\u00e0 chuy\u1ec3n qua d\u00e2y \u0111ai li\u1ec1n m\u1ea1ch v\u00e0 khu\u00f4n. B\u1ed9t PVC c\u00f3 d\u1ea1ng khu\u00f4n v\u00e0 \u0111i qua c\u00e1c v\u00f9ng nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau c\u1ee7a m\u00e1y v\u00e0 Thi\u00eau k\u1ebft. M\u00e1y t\u00e1ch PVC th\u00e0nh ph\u1ea9m \u0111\u01b0\u1ee3c c\u1eaft theo k\u00edch th\u01b0\u1edbc y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng. M\u1ed7i B\u1ed9 ph\u00e2n t\u00e1ch \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u1eadt l\u00fd \u0111\u1ec3 t\u00ecm c\u00e1c L\u1ed7 ghim, c\u00e1c c\u1ea5u h\u00ecnh m\u1ecfng v\u00e0 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t theo di\u1ec7n t\u00edch kh\u00f4ng \u0111\u1ecbnh d\u1ea1ng. C\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch \u0110\u00e3 ki\u1ec3m tra v\u00e0 \u0110\u00e3 v\u01b0\u1ee3t qua \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i v\u00e0 c\u00e1c h\u1ed9p \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u \u0111\u1ec3 g\u1eedi \u0111i.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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3.Lo\u1ea1i v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a t\u1ea5m ng\u0103n c\u00e1ch PVC do ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t: Sintered -Plain \u1edf m\u1ed9t m\u1eb7t v\u1edbi c\u00e1c \u0111\u01b0\u1eddng g\u00e2n th\u1eb3ng \u1edf m\u1eb7t c\u00f2n l\u1ea1i v\u00e0 tr\u01a1n \u1edf c\u1ea3 hai m\u1eb7t v\u1edbi \u0111\u1ed9 d\u00e0y web t\u1ed1i thi\u1ec3u l\u00e0 0,5mm v\u00e0 \u0111\u1ed9 d\u00e0y t\u1ed5ng th\u1ec3 l\u00ean \u0111\u1ebfn 3,6mm. Chi\u1ec1u d\u00e0i c\u1eaft theo k\u00edch th\u01b0\u1edbc y\u00eau c\u1ea7u.<\/p>

Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ghi l\u1ea1i:
1) Nguy\u00ean li\u1ec7u: \u0110\u01b0\u1ee3c ch\u1ea5p nh\u1eadn theo b\u00e1o c\u00e1o k\u1ebft qu\u1ea3 Ki\u1ec3m tra c\u1ee7a Nh\u00e0 cung c\u1ea5p theo ti\u00eau chu\u1ea9n c\u1ee7a ch\u00fang t\u00f4i.
2) B\u1ed9 t\u00e1ch pin PVC th\u00e0nh ph\u1ea9m \u0111\u01b0\u1ee3c ki\u1ec3m tra c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt IS nh\u01b0 sau:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m \u0111\u1ed1i v\u1edbi pin t\u00e1ch PVC<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A. X\u00e1c \u0111\u1ecbnh ph\u1ea7n tr\u0103m th\u1ec3 t\u00edch \u0111\u1ed9 x\u1ed1p<\/strong>
A-1: Thu\u1ed1c th\u1eed: N\u01b0\u1edbc c\u1ea5t.
A-2: Quy tr\u00ecnh: C\u1eaft ch\u00ednh x\u00e1c d\u00e0i 127 mm x r\u1ed9ng 19 mm b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng k\u00e9o. Ch\u1ed3ng 5 d\u1ea3i v\u00e0 bu\u1ed9c ch\u1eb7t ch\u00fang l\u1ea1i v\u1edbi nhau b\u1eb1ng c\u00e1ch qu\u1ea5n m\u1ed9t \u0111o\u1ea1n d\u00e2y \u0111\u1ed3ng d\u00e0i quanh m\u1ed9t \u0111\u1ea7u. \u0110\u1ed5 \u0111\u1ea7y kho\u1ea3ng v\u00e0o h\u00ecnh tr\u1ee5 chia \u0111\u1ed9. 85ml n\u01b0\u1edbc DM, ghi l\u1ea1i th\u1ec3 t\u00edch n\u00e0y<\/p>

(M\u1ed8T). nh\u00fang c\u00e1c d\u1ea3i v\u00e0o ch\u1ea5t l\u1ecfng, l\u1eafc c\u00e1c d\u1ea3i trong \u1ed1ng \u0111ong v\u00e0i l\u1ea7n \u0111\u1ec3 lo\u1ea1i b\u1ecf kh\u00f4ng kh\u00ed b\u1ecb m\u1eafc k\u1eb9t, \u0111\u1eb7t n\u00fat l\u1ecfng tr\u00ean \u0111\u1ec9nh \u1ed1ng tr\u1ee5 v\u00e0 \u0111\u1ec3 y\u00ean trong 10 ph\u00fat. Sau 10 ph\u00fat \u0111\u1ec3 y\u00ean, ghi l\u1ea1i th\u1ec3 t\u00edch ch\u1ea5t l\u1ecfng \u0111\u00e3 t\u0103ng l\u00ean<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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(B). Th\u1ec3 t\u00edch c\u1ee7a v\u1eadt r\u1eafn l\u00e0 s\u1ef1 t\u0103ng th\u1ec3 t\u00edch c\u1ee7a ch\u1ea5t l\u1ecfng, ngh\u0129a l\u00e0 BA. Th\u00e1o n\u00fat v\u00e0 r\u00fat c\u00e1c s\u1ecdc ra kh\u1ecfi ch\u1ea5t l\u1ecfng. L\u1eafc nh\u1eb9 c\u00e1c d\u1ea3i \u1edf \u0111\u1ea7u \u1ed1ng \u0111ong \u0111\u1ec3 n\u01b0\u1edbc th\u1eeba b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t m\u1eabu tho\u00e1t tr\u1edf l\u1ea1i \u1ed1ng tr\u1ee5. Ghi l\u1ea1i th\u1ec3 t\u00edch c\u1ee7a ch\u1ea5t l\u1ecfng c\u00f2n l\u1ea1i trong h\u00ecnh tr\u1ee5 C.
\u00c2m l\u01b0\u1ee3ng n\u00e0y s\u1ebd \u00edt h\u01a1n so v\u1edbi \u00e2m l\u01b0\u1ee3ng ban \u0111\u1ea7u ban \u0111\u1ea7u. V\u00ec ch\u00fang t\u00f4i \u0111\u00e3 chi\u1ebft xu\u1ea5t v\u1edbi l\u01b0\u1ee3ng m\u1eabu c\u1ee7a ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i trong v\u1eadt li\u1ec7u vi x\u1ed1p.
S\u1ef1 gi\u1ea3m th\u1ec3 t\u00edch (AC) n\u00e0y th\u1ec3 hi\u1ec7n th\u1ec3 t\u00edch c\u1ee7a l\u1ed7 ch\u00e2n l\u00f4ng.<\/p>

A-3. T\u00ednh to\u00e1n:% \u0111\u1ed9 x\u1ed1p th\u1ec3 t\u00edch = A – CX 100
BC<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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B. X\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n tr\u1edf trong ng\u0103n c\u00e1ch PVC<\/strong><\/p>

B-1: Thu\u1ed1c th\u1eed: Axit sulfuric c\u1ee7a Sp. Gr. 1.280
B-2: Quy tr\u00ecnh:
Thi\u1ebft l\u1eadp d\u1ee5ng c\u1ee5 \u0111o \u0111i\u1ec7n tr\u1edf. \u0110o \u0111\u1ed9 d\u00e0y c\u1ee7a D\u1ea5u ph\u00e2n c\u00e1ch. \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 d\u00e0y t\u01b0\u01a1ng t\u1ef1 tr\u00ean m\u1eb7t s\u1ed1. \u0110\u01b0a m\u1eabu ph\u00e2n t\u00e1ch v\u00e0o ph\u1ea7n v\u00e1ch ng\u0103n c\u1ee7a ng\u0103n ch\u1ee9a (tr\u01b0\u1edbc khi l\u00e0m nh\u01b0 v\u1eady, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch \u0111\u01b0\u1ee3c ng\u00e2m \u00edt nh\u1ea5t 24 gi\u1edd trong axit sulfuric c\u1ee7a Sp.gr.1.280).
B-3: T\u00ednh to\u00e1n: M\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb tr\u00ean thi\u1ebft b\u1ecb \u0111o \u0111i\u1ec7n tr\u1edf s\u1ebd tr\u1ef1c ti\u1ebfp cho bi\u1ebft \u0111i\u1ec7n tr\u1edf c\u1ee7a c\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch theo \u0111\u1ed9 d\u00e0y ohm \/ Sq .cm \/ mm.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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C. X\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng s\u1eaft M\u00e1y t\u00e1ch pin PVC<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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C-1. Thu\u1ed1c th\u1eed:
Axit sulfuric (1,250 Sp gr.), 1% KMno4 soln., Dung d\u1ecbch Amoni thiocyanat 10%, ti\u00eau chu\u1ea9n. S\u1eaft soln. (h\u00f2a tan 1,404 g m amoni sunfat trong 100ml n\u01b0\u1edbc. Th\u00eam 25 ml axit sunfuric 1,2 Sp gr. ti\u1ebfp theo l\u00e0 t\u1eebng gi\u1ecdt kali pemanganat cho \u0111\u1ebfn d\u01b0 nh\u1eb9. Chuy\u1ec3n dung d\u1ecbch. v\u00e0o b\u00ecnh 2 l\u00edt v\u00e0 pha lo\u00e3ng \u0111\u1ebfn v\u1ea1ch. Ch\u1ea5t tan ch\u1ee9a 0,10 mg S\u1eaft \/ ml dung d\u1ecbch).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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  • C-2: Th\u1ee7 t\u1ee5c:
    X\u00e9 ho\u1eb7c c\u1eaft nh\u1ecf 10 gm B\u1ed9 ph\u00e2n t\u00e1ch th\u00e0nh d\u1ea3i nh\u1ecf th\u00edch h\u1ee3p v\u00e0 cho v\u00e0o b\u00ecnh n\u00f3n 250ml \u0111\u00e3 l\u00e0m s\u1ea1ch. Th\u00eam 250ml axit sunfuric v\u00e0 \u0111\u1ec3 y\u00ean trong 18 gi\u1edd. \u01a1\u0309 nhi\u00ea\u0323t \u0111\u00f4\u0323 phong. Chuy\u1ec3n axit v\u00e0o b\u00ecnh chia \u0111\u1ed9 500ml v\u00e0 \u0111\u1ecbnh m\u1ee9c dung d\u1ecbch b\u1eb1ng n\u01b0\u1edbc c\u1ea5t \u0111\u1ebfn 500ml v\u00e0 l\u1eafc k\u1ef9. D\u00f9ng pipet l\u1ea5y 25 \u0111\u1ebfn 30ml dung d\u1ecbch tr\u00ean cho v\u00e0o c\u1ed1c v\u00e0 \u0111un \u0111\u1ebfn g\u1ea7n s\u00f4i r\u1ed3i th\u00eam t\u1eebng gi\u1ecdt dung d\u1ecbch KMnO4 cho \u0111\u1ebfn khi m\u00e0u h\u1ed3ng nh\u1ea1t kh\u00f4ng bi\u1ebfn m\u1ea5t sau 3 ho\u1eb7c 4 ph\u00fat.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    • Khi m\u00e0u v\u0129nh vi\u1ec5n \u0111\u01b0\u1ee3c b\u1ea3o \u0111\u1ea3m, h\u00e3y chuy\u1ec3n soln. v\u00e0o \u1ed1ng Nessler’s 100ml v\u00e0 l\u00e0m ngu\u1ed9i d\u01b0\u1edbi v\u00f2i n\u01b0\u1edbc. Khi ngu\u1ed9i ad 5ml amoni thio xyanat soln. v\u00e0 pha lo\u00e3ng \u0111\u1ebfn v\u1ea1ch. B\u1ecf th\u1eed nghi\u1ec7m \u0111\u1ed1i ch\u1ee9ng n\u1ebfu v\u1edbi 60ml std. S\u1eaft soln. s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t l\u01b0\u1ee3ng thu\u1ed1c th\u1eed m\u00e0 kh\u00f4ng c\u00f3 m\u1eabu ph\u00e2n t\u00e1ch. So s\u00e1nh m\u00e0u \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n trong hai \u1ed1ng c\u1ee7a Nessler.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      • C-3: T\u00ednh to\u00e1n:
        S\u1eaft trong c\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch ph\u1ea3i n\u1eb1m trong gi\u1edbi h\u1ea1n n\u1ebfu c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a m\u00e0u t\u1ea1o ra trong ph\u00e9p th\u1eed v\u1edbi c\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch kh\u00f4ng s\u00e2u h\u01a1n m\u00e0u t\u1ea1o ra trong ph\u00e9p th\u1eed kh\u00f4ng c\u00f3 d\u1ea3i ph\u00e2n c\u00e1ch ch\u1ee9a l\u01b0\u1ee3ng s\u1eaft cho ph\u00e9p khi \u0111\u01b0\u1ee3c th\u00eam v\u00e0o t\u1eeb dung d\u1ecbch ti\u00eau chu\u1ea9n.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        D. X\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng Clorua trong b\u00ecnh t\u00e1ch PVC<\/strong><\/p>

        D-1: Thu\u1ed1c th\u1eed:
        Dil. Axit nitric, Ferric Amoni sunfat soln, Std. Amoni thiocyanat soln. Std. Nitrat b\u1ea1c soln. N\u01b0\u1edbc kh\u1eed kho\u00e1ng, Nitrobenzene.<\/p>

        • D-2: Quy tr\u00ecnh:<\/strong><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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          • C\u00e2n 10 g ch\u1ea5t t\u00e1ch \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1eaft nh\u1ecf, chuy\u1ec3n v\u00e0o b\u00ecnh n\u00f3n 250ml v\u00e0 \u0111\u1eady n\u1eafp b\u1eb1ng 100ml n\u01b0\u1edbc DM s\u00f4i, \u0111\u1eady n\u00fat v\u00e0 th\u1ec9nh tho\u1ea3ng l\u1eafc trong khi \u0111\u1ec3 ngu\u1ed9i trong 1 gi\u1edd. G\u1ea1n d\u1ecbch chi\u1ebft v\u00e0o b\u00ecnh \u0111\u1ecbnh m\u1ee9c 500ml. Th\u00eam n\u01b0\u1edbc c\u1ea5t \u0111\u1ebfn 500ml. Chuy\u1ec3n 100ml ph\u1ea7n m\u1eabu v\u00e0o b\u00ecnh n\u00f3n 600ml. \u0110\u1ec3 ngu\u1ed9i v\u00e0 th\u00eam ch\u00ednh x\u00e1c 10ml Std. Nitrat b\u1ea1c soln. Th\u00eam v\u00e0i ml Nitrobenzen v\u00e0 l\u1eafc \u0111\u1ec3 t\u1ea1o k\u1ebft t\u1ee7a b\u1ea1c clorua.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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            • Chu\u1ea9n \u0111\u1ed9 l\u01b0\u1ee3ng d\u01b0 Silver nitrat b\u1eb1ng Std. \u1eeam. Thiocyanate s\u1eed d\u1ee5ng FAS l\u00e0m ch\u1ea5t ch\u1ec9 th\u1ecb. \u0110i\u1ec3m cu\u1ed1i c\u1ee7a ph\u00e9p chu\u1ea9n \u0111\u1ed9 l\u00e0 m\u1ed9t m\u00e0u n\u00e2u v\u0129nh vi\u1ec5n m\u1edd nh\u1ea1t, kh\u00f3 nh\u00ecn th\u1ea5y n\u1ebfu kh\u00f4ng c\u00f3 kinh nghi\u1ec7m \u0111\u00e1ng k\u1ec3. N\u1ebfu c\u00f3 b\u1ea5t k\u1ef3 nghi ng\u1edd n\u00e0o v\u1ec1 \u0111i\u1ec3m cu\u1ed1i, n\u00ean so s\u00e1nh n\u00f3 v\u1edbi m\u1ed9t dung d\u1ecbch t\u01b0\u01a1ng t\u1ef1 c\u00f3 ch\u1ee9a axit sulfuric lo\u00e3ng, Nitrobenzene, FAS v\u00e0 1 gi\u1ecdt Std. Amoni thiocyanat t\u1ea1o ra m\u00e0u s\u1eafc c\u1ee7a \u0111i\u1ec3m cu\u1ed1i.
              D-3: T\u00ednh to\u00e1n:<\/strong> Wt. c\u1ee7a clo = (Th\u1ec3 t\u00edch c\u1ee7a AgNO3 – Th\u1ec3 t\u00edch c\u1ee7a NH4CNS) x 500 x 100
              T\u1eadp trong t\u1ed5ng s\u1ed1 x wt. c\u1ee7a d\u1ea3i ph\u00e2n c\u00e1ch<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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              E. X\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng Mangan M\u00e1y t\u00e1ch PVC<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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              • E-1: Thu\u1ed1c th\u1eed:<\/strong><\/p>

                1,84 Sp. Gr. con l\u1eeba. H2SO4, axit orthophosphoric (85%), kali chu k\u1ef3 r\u1eafn, std. Mangan sunfat soln. (H\u00f2a tan 0,406g tinh th\u1ec3 MnSO4 trong kho\u1ea3ng 20ml n\u01b0\u1edbc). Th\u00eam 20 ml h\u1ed7n h\u1ee3p. Axit sulfuric ti\u1ebfp theo l\u00e0 5ml axit orthophosphoric. Th\u00eam 3g kali periodat v\u00e0 \u0111un s\u00f4i soln. trong 2 ph\u00fat. ngu\u1ed9i, pha lo\u00e3ng \u0111\u1ebfn 1 lt. (1ml = 0,01 mg Mangan). C\u00e1c soln. \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong m\u1ed9t n\u01a1i t\u1ed1i m\u00e1t m\u1ebb). Std. KMnO4 soln. (H\u00f2a tan 0,2873 g Kmno4 trong 1 lt. Trong n\u01b0\u1edbc \u0111\u00e3 th\u00eam 1 ml H2SO4 \u0111\u1eb7c. Pha lo\u00e3ng 100 ml dung d\u1ecbch n\u00e0y. Pha lo\u00e3ng th\u00e0nh 1 l\u00edt sao cho 1 ml = 0,01 mg Mangan).<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                • E-2: Th\u1ee7 t\u1ee5c:<\/strong><\/p>

                  Ch\u1ecdn ng\u1eabu nhi\u00ean \u00edt nh\u1ea5t 8 d\u1ea3i ph\u00e2n c\u00e1ch v\u00e0 b\u1ebb ch\u00fang th\u00e0nh nhi\u1ec1u m\u1ea3nh nh\u1ecf. C\u00e2n ch\u00ednh x\u00e1c 10gm t\u1eeb m\u1ea3nh v\u00e0 \u0111\u1eb7t n\u00f3 l\u00ean \u0111\u0129a silica. L\u00e0m kh\u00f4 m\u1eabu trong 16 gi\u1edd. \u1edf 105 \u00b1 20C. \u0110\u1ed1t v\u1eadt li\u1ec7u trong l\u00f2 m\u00fap \u1edf nhi\u1ec7t \u0111\u1ecf m\u1edd trong kho\u1ea3ng th\u1eddi gian x\u1ea5p x\u1ec9. 1 gi\u1edd Khu\u1ea5y tro \u0111\u1ec3 \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n. L\u00e0m ngu\u1ed9i tro trong b\u00ecnh h\u00fat \u1ea9m, l\u00e0m \u1ea9m b\u1eb1ng n\u01b0\u1edbc, th\u00eam 2 \u0111\u1ebfn 3 ml \u0111\u1ed3ng th\u1eddi. H2SO4 ti\u1ebfp theo l\u00e0 0,5ml \u0111\u1ed3ng ph\u00e2n. H3PO4. Th\u00eam 10 ml n\u01b0\u1edbc v\u00e0 \u0111un n\u00f3ng \u0111\u0129a v\u00e0 c\u00e1c ch\u1ea5t trong \u0111\u0129a tr\u00ean n\u1ed3i c\u00e1ch th\u1ee7y s\u00f4i cho \u0111\u1ebfn khi t\u1ea5t c\u1ea3 nguy\u00ean li\u1ec7u \u0111\u01b0\u1ee3c h\u00f2a tan.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  \u0110\u1ec3 ngu\u1ed9i v\u00e0 l\u1ecdc v\u00e0o c\u1ed1c 100ml, th\u00eam 0,3 g Kali chu k\u1ef3at, \u0111un s\u00f4i cho soln. trong 2 ph\u00fat. V\u00e0 sau khi \u0111\u1ec3 ngu\u1ed9i, pha \u0111\u1ebfn 50 ml t\u00f9y thu\u1ed9c v\u00e0o m\u00e0u s\u1eafc \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n. So s\u00e1nh b\u1eb1ng b\u1ed9 so s\u00e1nh ph\u00f9 h\u1ee3p v\u1edbi std. Mangan sunfat soln. Ti\u1ebfn h\u00e0nh x\u00e1c \u0111\u1ecbnh \u0111\u1ed1i ch\u1ee9ng \u0111\u1ed1i v\u1edbi thu\u1ed1c th\u1eed.<\/p>

                  E-3: T\u00ednh to\u00e1n:<\/strong> Bi\u1ec3u th\u1ecb l\u01b0\u1ee3ng mangan c\u00f3 m\u1eb7t b\u1eb1ng mg \/ 100gm m\u1eabu s\u1ea5y kh\u00f4 trong t\u1ee7 s\u1ea5y.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  F. X\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb Max. K\u00edch th\u01b0\u1edbc l\u1ed7 th\u00f4ng th\u01b0\u1eddng trong m\u00e1y t\u00e1ch PVC<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  F-1: Thu\u1ed1c th\u1eed: n-propanol.<\/strong>
                  F-2: Th\u1ee7 t\u1ee5c:<\/strong><\/p>

                  K\u00edch th\u01b0\u1edbc l\u1ed7 l\u1edbn nh\u1ea5t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch \u0111o \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea9y b\u1ecdt kh\u00ed \u0111\u1ea7u ti\u00ean \u0111i qua b\u1ed9 ph\u00e2n t\u00e1ch \u0111\u01b0\u1ee3c l\u00e0m \u01b0\u1edbt b\u1edfi abs. R\u01b0\u1ee3u. Thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh trong gi\u00e1 \u0111\u1ee1 v\u00e0 r\u01b0\u1ee3u \u0111\u01b0\u1ee3c \u0111\u1ec3 tr\u00ean thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch \u1edf \u0111\u1ed9 s\u00e2u v\u00e0i mm. \u00c1p su\u1ea5t kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u1eeb b\u00ean d\u01b0\u1edbi b\u1ec1 m\u1eb7t. N\u00f3 \u0111\u01b0\u1ee3c t\u0103ng d\u1ea7n cho \u0111\u1ebfn khi xu\u1ea5t hi\u1ec7n b\u1ecdt kh\u00ed tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch PVC. \u0110\u00f4i khi m\u1ed9t l\u1ed7 ri\u00eang l\u1ebb c\u00f3 th\u1ec3 kh\u00e1 l\u1edbn \u0111\u1ec3 t\u1ea1o ra bong b\u00f3ng kh\u00ed \u1edf \u00e1p su\u1ea5t kh\u00e1 th\u1ea5p.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  \u00c1p su\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c b\u1ecf qua v\u00e0 \u00e1p su\u1ea5t t\u1ea1i \u0111\u00f3 c\u00e1c bong b\u00f3ng xu\u1ea5t hi\u1ec7n tr\u00ean to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t v\u1edbi s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ee7 l\u1edbn \u0111\u01b0\u1ee3c ghi nh\u1eadn. \u0110\u00e2y \u0111\u01b0\u1ee3c coi l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a gi\u00e1 th\u1ea7u CPC K\u00edch th\u01b0\u1edbc l\u1ed7 ch\u00e2n l\u00f4ng.<\/p>

                  F-3: T\u00ednh to\u00e1n:<\/strong>
                  K\u00edch th\u01b0\u1edbc l\u1ed7 ch\u00e2n l\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c sau.
                  D = 30g X 103
                  P
                  Trong \u0111\u00f3 D = \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a l\u1ed7 t\u00ednh b\u1eb1ng micromet,
                  g = S\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t c\u1ee7a ch\u1ea5t l\u1ecfng t\u00ednh b\u1eb1ng Newton tr\u00ean m\u00e9t (0,0223 \u0111\u1ed1i v\u1edbi c\u1ed3n tuy\u1ec7t \u0111\u1ed1i) \u1edf 27oC
                  P = \u00c1p su\u1ea5t quan s\u00e1t \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng mm Hg<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  G: Ki\u1ec3m tra kh\u1ea3 n\u0103ng th\u1ea5m \u01b0\u1edbt trong m\u00e1y t\u00e1ch PVC<\/p>

                  G-1: Thu\u1ed1c th\u1eed: Axit sulfuric Sp.gr.1.280
                  G-2: Quy tr\u00ecnh:<\/p>

                  Nh\u1ecf m\u1ed9t gi\u1ecdt axit sunfuric soln 1,280 (270C). b\u1eb1ng pipet (10cc) tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. S\u1ef1 s\u1ee5t gi\u1ea3m s\u1ebd \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5 b\u1edfi c\u00e1c b\u1ed9 ph\u00e2n t\u00e1ch trong v\u00f2ng 60 gi\u00e2y. Th\u1eed nghi\u1ec7m ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean c\u1ea3 hai b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch.
                  G-3: T\u00ednh to\u00e1n:
                  Th\u1eed nghi\u1ec7m ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n n\u1ebfu b\u1ed9 ph\u00e2n t\u00e1ch h\u1ea5p th\u1ee5 gi\u1ecdt axit trong v\u00f2ng 60 gi\u00e2y.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  H: Ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc trong m\u00e1y t\u00e1ch PVC<\/strong>
                  H-1: Thu\u1ed1c th\u1eed: Nil.<\/strong>
                  H-2: Quy tr\u00ecnh:<\/strong><\/p>

                  D\u1ee5ng c\u1ee5 t\u00e1ch m\u1eabu ph\u1ea3i \u0111\u01b0\u1ee3c k\u1eb9p trong \u0111\u1ed3 g\u00e1 c\u00f3 c\u00e1c \u0111\u01b0\u1eddng g\u00e2n, n\u1ebfu c\u00f3, \u1edf ph\u00eda d\u01b0\u1edbi. M\u1ed9t qu\u1ea3 b\u00f3ng th\u00e9p c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 12,7mm. C\u00e2n n\u1eb7ng 8,357 \u00b1 0,2gm \u0111\u01b0\u1ee3c th\u1ea3 th\u1eb3ng \u0111\u1ee9ng t\u1eeb \u0111\u1ed9 cao 200mm. Qu\u1ea3 b\u00f3ng s\u1ebd r\u01a1i v\u00e0o gi\u1eefa c\u00e1c x\u01b0\u01a1ng s\u01b0\u1eddn.<\/p>

                  H-3: T\u00ednh to\u00e1n:<\/strong>
                  Th\u1eed nghi\u1ec7m ph\u1ea3i \u0111\u1ea1t n\u1ebfu d\u1ea3i ph\u00e2n c\u00e1ch kh\u00f4ng b\u1ecb v\u1ee1 ho\u1eb7c g\u00e3y do bi th\u00e9p va \u0111\u1eadp.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  T\u00f4i ki\u1ec3m tra tu\u1ed5i th\u1ecd cho m\u00e1y t\u00e1ch PVC<\/strong><\/p>

                  I-1: Thu\u1ed1c th\u1eed: 1.280 Sp. Gr. Axit sunfuric.<\/strong>
                  I-2: Th\u1ee7 t\u1ee5c:<\/strong><\/p>

                  B\u1ed9 ph\u00e2n t\u00e1ch \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m (50 \u00d7 50 mm) \u0111\u01b0\u1ee3c \u0111\u1eb7t xen k\u1ebd gi\u1eefa hai kh\u1ed1i ch\u00ec \u0111\u01b0\u1ee3c gi\u1eef trong axit sulfuric (Sp. Gr. 1.280) v\u00e0 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u1ef1c d\u01b0\u01a1ng v\u00e0 c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u. N\u1ebfu d\u1ea3i ph\u00e2n c\u00e1ch c\u00f3 g\u00e2n, th\u00ec m\u1eb7t c\u00f3 g\u00e2n ph\u1ea3i \u0111\u1ed1i di\u1ec7n v\u1edbi c\u1ef1c d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n m\u1ed9t chi\u1ec1u. C\u00e1c kh\u1ed1i ch\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c ng\u0103n l\u1ea1i b\u1eb1ng s\u01a1n m\u00e0i tr\u1eeb ph\u1ea7n ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi d\u1ea3i ph\u00e2n c\u00e1ch.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  M\u1ed9t v\u00e0i kh\u1ed1i ch\u00ec n\u1eefa \u0111\u01b0\u1ee3c th\u00eam v\u00e0o kh\u1ed1i \u0111\u1ec3 c\u00f3 t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 1 Kg, \u0111\u1ec3 t\u1ea1o \u00e1p su\u1ea5t 4 Kg \/ dm2 c\u1ee7a b\u1ed9 ph\u00e2n t\u00e1ch, m\u1ed9t ampe-gi\u1edd \u0111\u01b0\u1ee3c m\u1eafc n\u1ed1i ti\u1ebfp trong m\u1ea1ch \u0111\u1ec3 ghi t\u1ed5ng d\u00f2ng \u0111i\u1ec7n. \u0111\u00e3 qua v\u00e0 \u0111\u1ec3 t\u00ednh s\u1ed1 gi\u1edd s\u1ed1ng trong \u0111i\u1ec1u ki\u1ec7n hi\u1ec7n t\u1ea1i kh\u00f4ng \u0111\u1ed5i.
                  Gi\u1eefa hai kh\u1ed1i d\u00e2y d\u1eabn c\u00f3 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 5 ampe (m\u1eadt \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n 20 ampe tr\u00ean dm2) ch\u1ea1y qua. Khi b\u1ed9 ph\u00e2n t\u00e1ch b\u1ecb l\u1ed7i, c\u00e1c kh\u1ed1i d\u1eabn tr\u1edf n\u00ean ng\u1eafn m\u1ea1ch v\u00e0 \u0111i\u1ec7n \u00e1p tr\u00ean b\u1ed9 ph\u00e2n t\u00e1ch gi\u1ea3m xu\u1ed1ng g\u1ea7n b\u1eb1ng kh\u00f4ng. S\u1ef1 ch\u00eanh l\u1ec7ch \u0111i\u1ec7n \u00e1p n\u00e0y \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn b\u1edfi m\u1ed9t r\u01a1 le \u0111i\u1ec7n t\u1eed c\u1eaft ngu\u1ed3n m\u1ed9t chi\u1ec1u.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  I-3: T\u00ednh to\u00e1n:
                  T\u1eeb ampe-gi\u1edd, s\u1ed1 \u0111o tu\u1ed5i th\u1ecd c\u1ee7a v\u1ea1ch ph\u00e2n c\u00e1ch t\u00ednh b\u1eb1ng gi\u1edd \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00e1ch chia s\u1ed1 \u0111\u1ecdc c\u1ee7a \u0111\u1ed3ng h\u1ed3 AH cho 5.<\/p>

                  K\u1ebeT QU\u1ea2 TH\u1eec NGHI\u1ec6M: T\u1ea5t c\u1ea3 c\u00e1c k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m li\u00ean quan ph\u1ea3i \u0111\u01b0\u1ee3c ghi l\u1ea1i trong b\u00e1o c\u00e1o ph\u00f2ng th\u00ed nghi\u1ec7m ti\u00eau chu\u1ea9n.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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                  C\u00e1c b\u1ed9 ph\u00e2n t\u00e1ch trong pin c\u00f3 \u0111i\u1ec7n t\u00edch g\u00ec?<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  B\u1ed9 t\u00e1ch pin ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong> B\u1ed9 ph\u00e2n c\u00e1ch PVC \u0111\u00f3ng m\u1ed9t vai tr\u00f2 r\u1ea5t quan tr\u1ecdng b\u00ean trong pin. Trong khi ch\u00fang \u0111\u1ea3m b\u1ea3o c\u00e1c \u0111i\u1ec7n c\u1ef1c \u00e2m v\u00e0 d\u01b0\u01a1ng kh\u00f4ng b\u1ecb ng\u1eafn v\u1ec1 m\u1eb7t v\u1eadt l\u00fd, ch\u00fang v\u1eabn \u0111\u1ea3m b\u1ea3o s\u1ef1 chuy\u1ec3n giao \u0111i\u1ec7n t\u1eed c\u1ee7a c\u00e1c ion gi\u1eefa ch\u00fang. D\u1ea5u ph\u00e2n c\u00e1ch t\u1ef1 n\u00f3 kh\u00f4ng ch\u1ee9a b\u1ea5t k\u1ef3 \u0111i\u1ec7n t\u00edch n\u00e0o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  C\u00e1c lo\u1ea1i b\u1ed9 t\u00e1ch pin<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  C\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch s\u1edbm nh\u1ea5t \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng g\u1ed7. Tuy nhi\u00ean, nh\u1eefng th\u1ee9 n\u00e0y kh\u00f4ng t\u1ed3n t\u1ea1i l\u00e2u v\u00ec ch\u1ee9a nhi\u1ec1u ch\u1ea5t h\u1eefu c\u01a1, n\u00f3 r\u1ea5t d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng. Sau \u0111\u00f3, \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch PVC \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb poly vinyl clorua. C\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch n\u00e0y mang l\u1ea1i hi\u1ec7u su\u1ea5t r\u1ea5t cao. B\u1ed9 ph\u00e2n t\u00e1ch PVC cung c\u1ea5p c\u00e1c \u0111\u1eb7c t\u00ednh t\u1ed1t nh\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t b\u00ean trong pin axit ch\u00ec.<\/p>

                  Trong nh\u1eefng th\u1eadp k\u1ef7 qua, m\u00e1y t\u00e1ch PE \u0111\u00e3 t\u1ea1o ra nh\u1eefng c\u1ea3i ti\u1ebfn \u0111\u00e1ng k\u1ec3 trong s\u1ea3n xu\u1ea5t pin \u00f4 t\u00f4. M\u00e1y t\u00e1ch polyetylen mang l\u1ea1i hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng th\u1ec3 t\u00edch t\u1ed1t h\u01a1n kho\u1ea3ng 7-8%, do \u0111\u00f3 l\u00e0m t\u0103ng m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng. C\u00e1c d\u1ea3i ph\u00e2n c\u00e1ch n\u00e0y r\u1ea5t l\u00fd t\u01b0\u1edfng cho pin \u00f4 t\u00f4.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                  • B\u1ed9 t\u00e1ch pin lithium ion polyethylene \u0111\u01b0\u1ee3c gh\u00e9p v\u1edbi glycidyl methacrylate<\/li>
                  • M\u00e0ng polyethylen bi\u1ebfn t\u00ednh trong huy\u1ebft t\u01b0\u01a1ng l\u00e0m b\u1ed9 ph\u00e2n t\u00e1ch cho pin lithium ion polymer<\/li>
                  • X\u1eed l\u00fd plasma nit\u01a1 \u00e1p su\u1ea5t th\u1ea5p tr\u00ean c\u00e1c \u0111\u1eb7c t\u00ednh b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9 ph\u00e2n t\u00e1ch pe \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong pin lithium ion<\/li>
                  • M\u00e0ng pe li\u00ean k\u1ebft ch\u00e9o ch\u1ee9a poly (kali acrylate) (PKA) \u0111\u01b0\u1ee3c gh\u00e9p<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

                    PVC ng\u0103n c\u00e1ch l\u00e0 g\u00ec? Ng\u0103n c\u00e1ch PVC l\u00e0 c\u00e1c m\u00e0ng ng\u0103n x\u1ed1p si\u00eau nh\u1ecf \u0111\u01b0\u1ee3c \u0111\u1eb7t gi\u1eefa c\u00e1c b\u1ea3n c\u1ef1c \u00e2m v\u00e0 d\u01b0\u01a1ng c\u1ee7a pin axit-ch\u00ec \u0111\u1ec3 ng\u0103n c\u1ea3n m\u1ecdi s\u1ef1 ti\u1ebfp x\u00fac gi\u1eefa ch\u00fang nh\u1eb1m tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch b\u00ean trong nh\u01b0ng \u0111\u1ed3ng th\u1eddi cho ph\u00e9p ch\u1ea5t \u0111i\u1ec7n ph\u00e2n l\u01b0u th\u00f4ng t\u1ef1 […]<\/p>\n","protected":false},"author":1,"featured_media":24598,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[364],"tags":[],"class_list":["post-31583","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cac-thanh-phan"],"_links":{"self":[{"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/posts\/31583","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/comments?post=31583"}],"version-history":[{"count":1,"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/posts\/31583\/revisions"}],"predecessor-version":[{"id":66454,"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/posts\/31583\/revisions\/66454"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/media\/24598"}],"wp:attachment":[{"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/media?parent=31583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/categories?post=31583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microtexindia.com\/vi\/wp-json\/wp\/v2\/tags?post=31583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}