{"id":5267,"date":"2026-08-11T15:20:45","date_gmt":"2026-08-11T07:20:45","guid":{"rendered":"https:\/\/www.opticalcutting.com\/?p=5267"},"modified":"2026-08-11T15:20:48","modified_gmt":"2026-08-11T07:20:48","slug":"xu-ly-kem-sulfide-da-pho","status":"publish","type":"post","link":"https:\/\/www.opticalcutting.com\/vi\/xu-ly-kem-sulfide-da-pho\/","title":{"rendered":"X\u1eed l\u00fd K\u1ebdm Sulfide \u0110a ph\u1ed5: S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u1ea5p \u0111\u1ed9, Y\u00eau c\u1ea7u c\u1eaft, v\u00e0 T\u00e1c \u0111\u1ed9ng h\u1ea1 ngu\u1ed3n"},"content":{"rendered":"

Vi\u1ec7c x\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 c\u00f3 c\u00e1c h\u00e0nh vi kh\u00e1c v\u1edbi x\u1eed l\u00fd ZnS ti\u00eau chu\u1ea9n theo ba c\u00e1ch c\u1ee5 th\u1ec3: c\u1ea5u tr\u00fac h\u1ea1t xu\u1ea5t hi\u1ec7n sau khi \u00e9p \u0111\u1eb3ng t\u0129nh n\u00f3ng ch\u1ecbu l\u1ef1c c\u1eaft \u00edt h\u01a1n, y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t ch\u1eb7t ch\u1ebd h\u01a1n v\u00ec h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t tr\u1edf n\u00ean r\u00f5 r\u00e0ng trong chu k\u1ef3 \u0111\u00e1nh b\u00f3ng d\u00e0i h\u01a1n, v\u00e0 chi ph\u00ed v\u1eadt li\u1ec7u tr\u00ean m\u1ed7i \u0111\u1ebf \u0111\u1ee1 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c cao h\u01a1n \u0111\u00e1ng k\u1ec3, \u0111i\u1ec1u n\u00e0y l\u00e0m thay \u0111\u1ed5i kinh t\u1ebf c\u1ee7a m\u1ecdi quy\u1ebft \u0111\u1ecbnh ph\u1ebf li\u1ec7u v\u00e0 s\u1eeda ch\u1eefa \u0111\u01b0\u1ee3c \u0111\u01b0a ra \u1edf giai \u0111o\u1ea1n tr\u01b0\u1edbc. N\u1ebfu b\u1ea1n \u00e1p d\u1ee5ng c\u00e1c th\u00f4ng s\u1ed1 quy tr\u00ecnh CVD ZnS ti\u00eau chu\u1ea9n cho v\u1eadt li\u1ec7u c\u1ea5p \u0111a ph\u1ed5, b\u1ea1n s\u1ebd t\u1ea1o ra c\u00e1c ph\u00f4i \u0111\u00e1p \u1ee9ng ki\u1ec3m tra ban \u0111\u1ea7u nh\u01b0ng l\u1ea1i h\u1ecfng trong giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng cu\u1ed1i c\u00f9ng \u2014 sau khi ph\u1ea7n l\u1edbn lao \u0111\u1ed9ng gia t\u0103ng gi\u00e1 tr\u1ecb \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.<\/p>\n\n\n\n

Trang n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn nh\u1eefng g\u00ec thay \u0111\u1ed5i khi c\u1ea5p v\u1eadt li\u1ec7u thay \u0111\u1ed5i, v\u00e0 t\u1ea1i sao giai \u0111o\u1ea1n c\u1eaft \u0111\u1eb7c bi\u1ec7t mang nhi\u1ec1u r\u1ee7i ro h\u1ea1 ngu\u1ed3n h\u01a1n h\u1ea7u h\u1ebft c\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u1eadn ra. \u0110\u1ed1i v\u1edbi quy\u1ebft \u0111\u1ecbnh v\u1ec1 ph\u00eda thi\u1ebft b\u1ecb v\u1ec1 lo\u1ea1i m\u00e1y c\u1eaft n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho v\u1eadt li\u1ec7u ZnS n\u00f3i chung, h\u00e3y xem M\u00e1y c\u1eaft quang h\u1ecdc ZnS<\/a> t\u1ed5ng quan \u2014 trang n\u00e0y gi\u1ea3 \u0111\u1ecbnh quy\u1ebft \u0111\u1ecbnh \u0111\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a ra v\u00e0 t\u1eadp trung v\u00e0o ph\u1ea1m vi x\u1eed l\u00fd \u0111\u1eb7c th\u00f9 v\u1eadt li\u1ec7u cho c\u1ea5p \u0111a ph\u1ed5.<\/p>\n\n\n\n

\"Vimfun
Loop-type diamond wire saw for graphite,optical glass and so on.<\/figcaption><\/figure>\n\n\n\n

\u0110i\u1ec1u g\u00ec l\u00e0m cho vi\u1ec7c x\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 kh\u00e1c v\u1edbi ZnS ti\u00eau chu\u1ea9n<\/h2>\n\n\n\n

CVD ti\u00eau chu\u1ea9n k\u1ebdm sulfua<\/a> \u0111\u01b0\u1ee3c nu\u00f4i c\u1ea5y b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p l\u1eafng \u0111\u1ecdng h\u01a1i h\u00f3a h\u1ecdc v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 \u0111\u00e3 l\u1eafng \u0111\u1ecdng. C\u1eeda s\u1ed5 truy\u1ec1n c\u1ee7a n\u00f3 tr\u1ea3i d\u00e0i kho\u1ea3ng 8\u201312 \u03bcm \u2014 d\u1ea3i LWIR h\u1eefu \u00edch cho ch\u1ee5p \u1ea3nh nhi\u1ec7t \u2014 v\u00e0 c\u1ea5u tr\u00fac h\u1ea1t \u0111a tinh c\u1ee7a n\u00f3 th\u00f4 h\u01a1n, v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t trong h\u00e0ng ch\u1ee5c micron v\u00e0 t\u00e1n x\u1ea1 quang h\u1ecdc v\u1eeba ph\u1ea3i trong d\u1ea3i nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

CVD ZnS \u0111a ph\u1ed5 b\u1eaft \u0111\u1ea7u t\u1eeb c\u00f9ng m\u1ed9t quy tr\u00ecnh l\u1eafng \u0111\u1ecdng, sau \u0111\u00f3 tr\u1ea3i qua \u00e9p \u0111\u1eb3ng t\u0129nh n\u00f3ng (HIP)<\/a> \u1edf nhi\u1ec7t \u0111\u1ed9 th\u01b0\u1eddng trong kho\u1ea3ng 900\u20131000 \u00b0C d\u01b0\u1edbi \u00e1p su\u1ea5t argon 100\u2013200 MPa. X\u1eed l\u00fd sau n\u00e0y k\u1ebft tinh l\u1ea1i c\u1ea5u tr\u00fac h\u1ea1t th\u00e0nh \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t d\u01b0\u1edbi micron, gi\u1ea3m m\u1eadt \u0111\u1ed9 l\u1ed7 r\u1ed7ng b\u00ean trong v\u00e0 m\u1edf r\u1ed9ng c\u1eeda s\u1ed5 truy\u1ec1n xu\u1ed1ng kho\u1ea3ng 0,4 \u03bcm. V\u1eadt li\u1ec7u hi\u1ec7n truy\u1ec1n \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c v\u1edbi \u0111\u1ed9 m\u1edd ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c v\u00e0 v\u1eabn trong su\u1ed1t qua LWIR \u2014 do \u0111\u00f3 c\u00f3 t\u00ean l\u00e0 \u201c\u0111a ph\u1ed5\u201d, bao ph\u1ee7 t\u1eeb nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c \u0111\u1ebfn h\u1ed3ng ngo\u1ea1i s\u00f3ng d\u00e0i trong m\u1ed9t \u0111\u1ebf \u0111\u1ee1 duy nh\u1ea5t.<\/p>\n\n\n\n

Vi\u1ec7c x\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 t\u1ed1n k\u00e9m h\u01a1n vi\u1ec7c x\u1eed l\u00fd ZnS ti\u00eau chu\u1ea9n \u1edf m\u1ecdi b\u01b0\u1edbc do ba thay \u0111\u1ed5i li\u00ean k\u1ebft:<\/p>\n\n\n\n

    \n
  1. Tinh ch\u1ec9nh h\u1ea1t l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n ch\u1ed1ng n\u1ee9t c\u1ee5c b\u1ed9 \u1edf l\u1edbp b\u1ec1 m\u1eb7t.<\/strong> C\u1ea5u tr\u00fac h\u1ea1t m\u1ecbn mang l\u1ea1i t\u00ednh \u0111\u1ed3ng nh\u1ea5t quang h\u1ecdc cho ZnS \u0111a ph\u1ed5 c\u0169ng lo\u1ea1i b\u1ecf c\u00e1c c\u01a1 ch\u1ebf ch\u1eb7n v\u1ebft n\u1ee9t ranh gi\u1edbi h\u1ea1t c\u00f3 trong v\u1eadt li\u1ec7u c\u00f3 h\u1ea1t th\u00f4 h\u01a1n. H\u01b0 h\u1ecfng b\u1ec1 m\u1eb7t lan truy\u1ec1n d\u1ec5 d\u00e0ng h\u01a1n trong qu\u00e1 tr\u00ecnh c\u1eaft.<\/li>\n\n\n\n
  2. H\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t tr\u1edf n\u00ean r\u00f5 r\u00e0ng trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng.<\/strong> \u0110\u00e1nh b\u00f3ng ZnS ti\u00eau chu\u1ea9n lo\u1ea1i b\u1ecf \u0111\u1ee7 v\u1eadt li\u1ec7u \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng quang h\u1ecdc d\u1ea3i LWIR v\u00e0 d\u1eebng l\u1ea1i. \u0110\u00e1nh b\u00f3ng \u0111a ph\u1ed5 ti\u1ebfp t\u1ee5c \u0111\u1ea1t m\u1ee5c ti\u00eau Ra th\u1ea5p h\u01a1n v\u00e0 \u0111\u1ebf \u0111\u1ee1 m\u1ecfng h\u01a1n, l\u00e0m l\u1ed9 ra c\u00e1c l\u1edbp h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t l\u1ebd ra \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng kh\u1ecfi ph\u00f4i c\u1ea5p ti\u00eau chu\u1ea9n.<\/li>\n\n\n\n
  3. Chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4 cao h\u01a1n \u0111\u00e1ng k\u1ec3.<\/strong> CVD ZnS \u0111a ph\u1ed5 c\u00f3 gi\u00e1 cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi CVD ZnS ti\u00eau chu\u1ea9n tr\u00ean c\u01a1 s\u1edf m\u1ed7i kh\u1ed1i l\u01b0\u1ee3ng, \u0111i\u1ec1u n\u00e0y l\u00e0m thay \u0111\u1ed5i t\u1ef7 l\u1ec7 ph\u1ebf li\u1ec7u ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u1edf m\u1ecdi giai \u0111o\u1ea1n x\u1eed l\u00fd.<\/li>\n<\/ol>\n\n\n\n

    K\u1ebft qu\u1ea3: c\u00f9ng m\u1ed9t quy tr\u00ecnh c\u1eaft t\u1ea1o ra c\u00e1c ph\u00f4i ZnS ti\u00eau chu\u1ea9n ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c s\u1ebd t\u1ea1o ra c\u00e1c ph\u00f4i \u0111a ph\u1ed5 c\u00f3 c\u00e1c khuy\u1ebft t\u1eadt d\u01b0\u1edbi b\u1ec1 m\u1eb7t \u1ea9n ch\u1ec9 xu\u1ea5t hi\u1ec7n \u1edf giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng, khi \u0111\u1ebf \u0111\u1ee1 \u0111\u00e3 h\u1ea5p th\u1ee5 ph\u1ea7n l\u1edbn chi ph\u00ed s\u1ea3n xu\u1ea5t c\u1ee7a n\u00f3.<\/p>\n\n\n\n

    \u0110\u1eb7c t\u00ednh v\u1eadt li\u1ec7u th\u00fac \u0111\u1ea9y thay \u0111\u1ed5i th\u00f4ng s\u1ed1 c\u1eaft<\/h2>\n\n\n\n

    C\u00e1c \u0111\u1eb7c t\u00ednh thay \u0111\u1ed5i khi chuy\u1ec3n t\u1eeb ZnS ti\u00eau chu\u1ea9n sang \u0111a ph\u1ed5 kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng \u0111\u1eb7c t\u00ednh m\u00e0 h\u1ea7u h\u1ebft c\u00e1c b\u1ea3ng quy tr\u00ecnh theo d\u00f5i. \u0110\u1ed9 c\u1ee9ng kh\u1ed1i (Knoop ~160\u2013230 KHN) v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng thay \u0111\u1ed5i. \u0110\u1ed9 b\u1ec1n ch\u1ed1ng n\u1ee9t kh\u1ed1i (~0,8\u20131,0 MPa\u00b7m\u2070\u00b7\u2075) ch\u1ec9 thay \u0111\u1ed5i m\u1ed9t ch\u00fat. \u0110i\u1ec1u th\u1ef1c s\u1ef1 thay \u0111\u1ed5i l\u00e0 h\u00e0nh vi c\u1ee7a l\u1edbp b\u1ec1 m\u1eb7t d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng l\u1ef1c c\u1ee5c b\u1ed9:<\/p>\n\n\n\n

    Thu\u1ed9c t\u00ednh<\/th>ZnS CVD ti\u00eau chu\u1ea9n<\/th>ZnS CVD \u0111a ph\u1ed5<\/th><\/tr><\/thead>
    K\u00edch th\u01b0\u1edbc h\u1ea1t (\u0111i\u1ec3n h\u00ecnh)<\/td>5\u201350 \u03bcm<\/td>D\u01b0\u1edbi micron \u0111\u1ebfn ~2 \u03bcm<\/td><\/tr>
    D\u1ea3i truy\u1ec1n qua<\/td>8\u201312 \u03bcm<\/td>0,4\u201312 \u03bcm<\/td><\/tr>
    T\u00e1n x\u1ea1 \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y<\/td>Cao (v\u00e0ng cam m\u1edd)<\/td>Th\u1ea5p (g\u1ea7n tr\u1eafng nh\u01b0 n\u01b0\u1edbc)<\/td><\/tr>
    H\u00e0nh vi n\u1ee9t b\u1ec1 m\u1eb7t<\/td>V\u1ee1 v\u1ee5n ranh gi\u1edbi h\u1ea1t<\/td>Vi n\u1ee9t d\u01b0\u1edbi h\u1ea1t, \u00edt nh\u00ecn th\u1ea5y h\u01a1n<\/td><\/tr>
    Ph\u00ed b\u1ea3o hi\u1ec3m nguy\u00ean li\u1ec7u th\u00f4 \u0111i\u1ec3n h\u00ecnh<\/td>C\u01a1 s\u1edf<\/td>Ph\u00ed b\u1ea3o hi\u1ec3m \u0111\u00e1ng k\u1ec3 so v\u1edbi m\u1ee9c c\u01a1 b\u1ea3n<\/td><\/tr>
    M\u1ee5c ti\u00eau lo\u1ea1i b\u1ecf khi \u0111\u00e1nh b\u00f3ng<\/td>Ti\u00eau chu\u1ea9n (ch\u1ec9 LWIR)<\/td>Cao h\u01a1n \u0111\u00e1ng k\u1ec3 (Ra m\u1ecbn h\u01a1n, m\u1ecfng h\u01a1n cu\u1ed1i c\u00f9ng)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Hai h\u00e0ng cu\u1ed1i c\u00f9ng l\u00e0 nh\u1eefng h\u00e0ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi k\u1ebf to\u00e1n chi ph\u00ed. Vi\u1ec7c x\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 \u0111\u00f2i h\u1ecfi ph\u1ea3i lo\u1ea1i b\u1ecf nhi\u1ec1u h\u01a1n \u1edf giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng, ngh\u0129a l\u00e0 b\u1ea5t k\u1ef3 h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t n\u00e0o t\u1eeb qu\u00e1 tr\u00ecnh c\u1eaft s\u1ebd c\u00f3 nhi\u1ec1u th\u1eddi gian v\u00e0 nhi\u1ec1u m\u00e0i m\u00f2n h\u01a1n \u0111\u1ec3 tr\u1edf n\u00ean r\u00f5 r\u00e0ng \u2014 ho\u1eb7c d\u01b0\u1edbi d\u1ea1ng l\u1edbp m\u1edd l\u00e0m h\u1ecfng ki\u1ec3m tra d\u1ea3i nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c, ho\u1eb7c d\u01b0\u1edbi d\u1ea1ng c\u00e1c v\u1ebft l\u00f5m nh\u1ecf l\u00e0m h\u1ecfng b\u00e0i ki\u1ec3m tra \u0111\u1ed9 b\u00e1m d\u00ednh l\u1edbp ph\u1ee7 sau khi \u00e1p d\u1ee5ng l\u1edbp ph\u1ee7 AR.<\/p>\n\n\n\n

    \u0110\u1ec3 tham kh\u1ea3o v\u1ec1 c\u00e1ch c\u00e1c c\u00e2n nh\u1eafc lo\u1ea1i b\u1ecf khi \u0111\u00e1nh b\u00f3ng t\u01b0\u01a1ng t\u1ef1 \u00e1p d\u1ee5ng cho k\u1ebdm selenide \u2014 m\u1ed9t v\u1eadt li\u1ec7u IR li\u00ean quan nh\u01b0ng m\u1ec1m h\u01a1n \u2014 h\u00e3y xem \u0110\u00e1nh b\u00f3ng quang h\u1ecdc K\u1ebdm Selenide<\/a> h\u01b0\u1edbng d\u1eabn quy tr\u00ecnh.<\/p>\n\n\n\n

    \u0110i\u1ec1u ch\u1ec9nh l\u1ef1c c\u1eaft v\u00e0 t\u1ed1c \u0111\u1ed9 ti\u1ebfn dao cho c\u1ea5p \u0111a ph\u1ed5<\/h2>\n\n\n\n

    S\u1ef1 thay \u0111\u1ed5i th\u00f4ng s\u1ed1 t\u1eeb x\u1eed l\u00fd ZnS ti\u00eau chu\u1ea9n sang k\u1ebdm sulfua \u0111a ph\u1ed5 kh\u00f4ng ph\u1ea3i l\u00e0 t\u1ef7 l\u1ec7 gi\u1ea3m t\u01b0\u01a1ng \u1ee9ng. M\u1ed9t s\u1ed1 th\u00f4ng s\u1ed1 thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3, nh\u1eefng th\u00f4ng s\u1ed1 kh\u00e1c h\u1ea7u nh\u01b0 kh\u00f4ng thay \u0111\u1ed5i.<\/p>\n\n\n\n

    Wire tension<\/strong> n\u00ean \u0111\u01b0\u1ee3c gi\u1ea3m m\u1ed9t c\u00e1ch v\u1eeba ph\u1ea3i khi c\u1eaft \u0111a ph\u1ed5 so v\u1edbi l\u1ef1c c\u0103ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00f9ng m\u1ed9t h\u00ecnh d\u1ea1ng ph\u00f4i trong ZnS ti\u00eau chu\u1ea9n. L\u00fd do kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ec3 gi\u1ea3m l\u1ef1c c\u1eaft \u1edf c\u1ea5p \u0111\u1ed9 kh\u1ed1i v\u1eadt li\u1ec7u, m\u00e0 l\u00e0 \u0111\u1ec3 gi\u1ea3m \u0111\u1ec9nh l\u1ef1c \u0111\u1ed9t ng\u1ed9t t\u1ea1i \u0111i\u1ec3m v\u00e0o v\u00e0 ra c\u1ee7a v\u1ebft c\u1eaft, n\u01a1i c\u1ea5u tr\u00fac h\u1ea1t m\u1ecbn c\u1ee7a \u0111a ph\u1ed5 d\u1ec5 b\u1ecb vi n\u1ee9t d\u01b0\u1edbi b\u1ec1 m\u1eb7t nh\u1ea5t. Tr\u00ean th\u1ef1c t\u1ebf, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u1ea1y m\u00e1y c\u01b0a d\u00e2y g\u1ea7n ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng l\u1ef1c c\u0103ng th\u1ea5p c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi \u0111\u1ed9 d\u00e0y ph\u00f4i.<\/p>\n\n\n\n

    Feed rate<\/strong> \u0111\u00f2i h\u1ecfi m\u1ed9t s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh l\u1edbn h\u01a1n \u2014 ch\u1eadm h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi t\u1ed1c \u0111\u1ed9 ti\u1ebfn dao c\u1ee7a ZnS ti\u00eau chu\u1ea9n \u0111\u1ed1i v\u1edbi c\u00f9ng m\u1ed9t \u0111\u1ed9 d\u00e0y ph\u00f4i. T\u1ed1c \u0111\u1ed9 ti\u1ebfn dao ch\u1eadm h\u01a1n gi\u1eef cho nhi\u1ec7t \u0111\u1ed9 v\u00f9ng c\u1eaft th\u1ea5p v\u00e0 gi\u1ea3m m\u1eadt \u0111\u1ed9 c\u00e1c s\u1ef1 ki\u1ec7n ti\u1ebfp x\u00fac tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch \u0111\u1ebf \u0111\u1ee1. C\u1ea3 hai y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ec1u l\u00e0m gi\u1ea3m \u0111\u1ed9 s\u00e2u c\u1ee7a l\u1edbp h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t m\u00e0 giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng ph\u1ea3i lo\u1ea1i b\u1ecf.<\/p>\n\n\n\n

    L\u01b0u l\u01b0\u1ee3ng ch\u1ea5t l\u00e0m m\u00e1t<\/strong> quan tr\u1ecdng h\u01a1n, kh\u00f4ng k\u00e9m. ZnS \u0111a ph\u1ed5 d\u1ec5 b\u1ecb nhi\u1ec5m b\u1ea9n do c\u1eb7n b\u00e3 l\u1eafng \u0111\u1ecdng h\u01a1n v\u00ec c\u1ea5u tr\u00fac b\u1ec1 m\u1eb7t m\u1ecbn c\u1ee7a n\u00f3 gi\u1eef l\u1ea1i c\u00e1c h\u1ea1t m\u00e0 b\u1ec1 m\u1eb7t ZnS ti\u00eau chu\u1ea9n c\u00f3 h\u1ea1t th\u00f4 h\u01a1n s\u1ebd lo\u1ea1i b\u1ecf. T\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y ch\u1ea5t l\u00e0m m\u00e1t g\u1ed1c n\u01b0\u1edbc th\u01b0\u1eddng c\u1ea7n cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi th\u1ef1c h\u00e0nh v\u1edbi ZnS ti\u00eau chu\u1ea9n, v\u00e0 kho\u1ea3ng th\u1eddi gian l\u1ecdc ch\u1ea5t l\u00e0m m\u00e1t c\u1ea7n ng\u1eafn h\u01a1n \u2014 t\u00ednh b\u1eb1ng gi\u1edd l\u00e0m vi\u1ec7c thay v\u00ec ng\u00e0y c\u1eaft li\u00ean t\u1ee5c.<\/p>\n\n\n\n

    Nh\u1eefng g\u00ec kh\u00f4ng thay \u0111\u1ed5i: vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa c\u01b0a d\u00e2y kim c\u01b0\u01a1ng v\u00e0 c\u01b0a ID v\u1eabn gi\u1eef nguy\u00ean nh\u01b0 \u0111\u1ed1i v\u1edbi ZnS ti\u00eau chu\u1ea9n \u2014 M\u00e1y c\u1eaft quang h\u1ecdc ZnS<\/a> ph\u00e2n t\u00edch thi\u1ebft b\u1ecb \u00e1p d\u1ee5ng cho c\u1ea3 hai lo\u1ea1i. X\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 hi\u1ebfm khi bi\u1ec7n minh cho vi\u1ec7c thay \u0111\u1ed5i lo\u1ea1i m\u00e1y; n\u00f3 bi\u1ec7n minh cho vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh l\u1ea1i trong m\u00e1y b\u1ea1n c\u00f3.<\/p>\n\n\n\n

    C\u00f3 m\u1ed9t t\u00ecnh hu\u1ed1ng m\u00e0 h\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00f4ng c\u00f2n hi\u1ec7u l\u1ef1c. N\u1ebfu quy tr\u00ecnh c\u1eaft c\u1ee7a b\u1ea1n tr\u01b0\u1edbc \u0111\u00e2y \u0111\u01b0\u1ee3c ch\u1ea1y \u1edf c\u00e1c th\u00f4ng s\u1ed1 kh\u1eafc nghi\u1ec7t \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a th\u00f4ng l\u01b0\u1ee3ng tr\u00ean ZnS ti\u00eau chu\u1ea9n, th\u00ec vi\u1ec7c gi\u1ea3m th\u00f4ng s\u1ed1 \u1edf tr\u00ean c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ee7 \u2014 b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n gi\u1ea3m t\u1ed1c \u0111\u1ed9 quy tr\u00ecnh \u0111\u00e1ng k\u1ec3, \u0111i\u1ec1u n\u00e0y l\u00e0m thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 k\u1ebf ho\u1ea1ch s\u1ea3n xu\u1ea5t. C\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00e3 ch\u1ea1y ZnS ti\u00eau chu\u1ea9n \u1edf c\u00e1c th\u00f4ng s\u1ed1 b\u1ea3o th\u1ee7 s\u1ebd c\u00f3 \u00edt \u0111i\u1ec1u ch\u1ec9nh h\u01a1n.<\/p>\n\n\n\n

    \"Vimfun
    Loop-type diamond wire saw for graphite,optical glass and so on.<\/figcaption><\/figure>\n\n\n\n

    Y\u00eau c\u1ea7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t cho x\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5<\/h2>\n\n\n\n

    C\u00e1c m\u1ee5c ti\u00eau b\u1ec1 m\u1eb7t sau khi c\u1eaft ch\u1eb7t ch\u1ebd h\u01a1n \u0111\u1ed1i v\u1edbi x\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 so v\u1edbi lo\u1ea1i ti\u00eau chu\u1ea9n, nh\u01b0ng vi\u1ec7c l\u00e0m ch\u1eb7t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean c\u00e1c ch\u1ec9 s\u1ed1.<\/p>\n\n\n\n

    Ra (\u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t)<\/strong> c\u00e1c m\u1ee5c ti\u00eau sau khi c\u1eaft ch\u1eb7t ch\u1ebd h\u01a1n \u0111\u1ed1i v\u1edbi \u0111a ph\u1ed5 so v\u1edbi c\u1eeda s\u1ed5 Ra 0,6\u20131,2 \u03bcm \u0111i\u1ec3n h\u00ecnh cho c\u00e1c b\u1ec1 m\u1eb7t c\u1eaft th\u00f4 c\u1ee7a ZnS ti\u00eau chu\u1ea9n. C\u1eeda s\u1ed5 h\u1eb9p h\u01a1n c\u00f3 \u00fd ngh\u0129a v\u00ec giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng ph\u1ea3i lo\u1ea1i b\u1ecf b\u1ea5t k\u1ef3 \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t n\u00e0o tr\u00ean m\u1ee5c ti\u00eau Ra cu\u1ed1i c\u00f9ng \u2014 v\u00e0 c\u00e1c y\u00eau c\u1ea7u Ra cu\u1ed1i c\u00f9ng c\u1ee7a \u0111a ph\u1ed5 cho c\u00e1c \u1ee9ng d\u1ee5ng b\u0103ng t\u1ea7n nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c m\u1ecbn h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi ZnS ti\u00eau chu\u1ea9n ch\u1ec9 LWIR.<\/p>\n\n\n\n

    TTV (bi\u1ebfn thi\u00ean \u0111\u1ed9 d\u00e0y t\u1ed5ng c\u1ed9ng)<\/strong> \u0111\u1ed1i v\u1edbi ph\u00f4i \u03a650 mm b\u1ecb r\u00e0ng bu\u1ed9c ch\u1eb7t ch\u1ebd h\u01a1n \u0111\u1ed1i v\u1edbi \u0111a ph\u1ed5 so v\u1edbi ph\u1ea1m vi ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c 8\u201315 \u03bcm \u0111\u1ed1i v\u1edbi lo\u1ea1i ti\u00eau chu\u1ea9n. TTV kh\u00f4ng \u0111\u1ea1t ti\u00eau chu\u1ea9n kh\u00f4ng ch\u1ec9 l\u00e0 chi ph\u00ed c\u1eaft \u2014 n\u00f3 d\u1eabn \u0111\u1ebfn m\u1ed9t chu k\u1ef3 m\u00e0i b\u1ed5 sung \u0111\u1ec3 s\u1eeda ch\u1eefa, v\u00e0 chu k\u1ef3 m\u00e0i \u0111\u00f3 mang theo r\u1ee7i ro h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t c\u1ee7a ri\u00eang n\u00f3 tr\u00ean v\u1eadt li\u1ec7u \u0111a ph\u1ed5.<\/p>\n\n\n\n

    \u0110\u1ed9 s\u00e2u l\u1edbp h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t<\/strong> l\u00e0 ch\u1ec9 s\u1ed1 m\u00e0 h\u1ea7u h\u1ebft c\u00e1c ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111o l\u01b0\u1eddng nh\u01b0ng n\u00ean \u0111o. Giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng ph\u1ea3i lo\u1ea1i b\u1ecf \u00edt nh\u1ea5t \u0111\u1ed9 s\u00e2u c\u1ee7a h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh c\u1eaft tr\u01b0\u1edbc khi b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u \u201cth\u1ef1c\u201d \u0111\u01b0\u1ee3c l\u1ed9 ra. N\u1ebfu qu\u00e1 tr\u00ecnh c\u1eaft t\u1ea1o ra nhi\u1ec1u h\u01b0 h\u1ecfng d\u01b0\u1edbi b\u1ec1 m\u1eb7t h\u01a1n ng\u00e2n s\u00e1ch lo\u1ea1i b\u1ecf \u0111\u00e1nh b\u00f3ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, th\u1eddi gian chu k\u1ef3 s\u1ebd m\u1edf r\u1ed9ng \u0111\u00e1ng k\u1ec3 v\u00e0 n\u0103ng su\u1ea5t s\u1ebd gi\u1ea3m t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n

    V\u00f9ng m\u1ebb c\u1ea1nh<\/strong> c\u00e1c y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t h\u01a1n \u0111\u1ed1i v\u1edbi \u0111a ph\u1ed5 v\u00ec y\u00eau c\u1ea7u truy\u1ec1n b\u0103ng t\u1ea7n nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c c\u00f3 ngh\u0129a l\u00e0 c\u00e1c khuy\u1ebft t\u1eadt c\u1ea1nh t\u1ea1o ra \u00e1nh s\u00e1ng l\u1ea1c \u0111\u00e1ng k\u1ec3. V\u00f9ng m\u1ebb ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c t\u1eeb c\u1ea1nh ph\u00f4i nh\u1ecf h\u01a1n \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi \u0111a ph\u1ed5 so v\u1edbi ZnS ti\u00eau chu\u1ea9n ch\u1ec9 LWIR.<\/p>\n\n\n\n

    Kh\u00f4ng ph\u1ea3i m\u1ecdi \u1ee9ng d\u1ee5ng \u0111\u1ec1u c\u1ea7n ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ea5p \u0111a ph\u1ed5. N\u1ebfu m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ea1n ch\u1ec9 l\u00e0 ch\u1ee5p \u1ea3nh LWIR v\u00e0 ph\u00f4i s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn c\u1ea1nh n\u01a1i 2 mm ngo\u00e0i c\u00f9ng b\u1ecb che khu\u1ea5t b\u1edfi vi\u1ec1n, th\u00ec c\u00e1c y\u00eau c\u1ea7u c\u1ea1nh b\u0103ng t\u1ea7n nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng \u00e1p d\u1ee5ng. X\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 \u1edf c\u00e1c m\u1ee5c ti\u00eau ch\u1eb7t ch\u1ebd h\u01a1n n\u00e0y ch\u1ec9 \u0111\u00e1ng gi\u00e1 khi \u1ee9ng d\u1ee5ng th\u1ef1c s\u1ef1 s\u1eed d\u1ee5ng b\u0103ng t\u1ea7n nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

    Ch\u1ea5t l\u00e0m m\u00e1t, C\u1ed1 \u0111\u1ecbnh v\u00e0 Chi ti\u1ebft x\u1eed l\u00fd<\/h2>\n\n\n\n

    Ngo\u00e0i c\u00e1c th\u00f4ng s\u1ed1 l\u1ef1c v\u00e0 t\u1ed1c \u0111\u1ed9 ti\u1ebfn dao, ba y\u1ebfu t\u1ed1 x\u1eed l\u00fd quan tr\u1ecdng h\u01a1n \u0111\u1ed1i v\u1edbi x\u1eed l\u00fd k\u1ebdm sulfua \u0111a ph\u1ed5 so v\u1edbi c\u00f4ng vi\u1ec7c lo\u1ea1i ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n

    H\u00f3a h\u1ecdc ch\u1ea5t l\u00e0m m\u00e1t<\/strong> n\u00ean l\u00e0 n\u01b0\u1edbc g\u1ed1c pH trung t\u00ednh. ZnS \u0111a ph\u1ed5 nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi c\u00e1c d\u01b0 l\u01b0\u1ee3ng ch\u1ea5t l\u00e0m m\u00e1t c\u00f3 t\u00ednh axit ho\u1eb7c ki\u1ec1m \u0103n m\u00f2n \u01b0u ti\u00ean t\u1ea1i c\u00e1c ranh gi\u1edbi h\u1ea1t m\u1ecbn v\u00e0 t\u1ea1o ra l\u1edbp m\u1edd b\u1ec1 m\u1eb7t kh\u00f3 lo\u1ea1i b\u1ecf ch\u1ec9 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc. ZnS ti\u00eau chu\u1ea9n ch\u1ecbu \u0111\u01b0\u1ee3c c\u1eeda s\u1ed5 h\u00f3a h\u1ecdc ch\u1ea5t l\u00e0m m\u00e1t r\u1ed9ng h\u01a1n; \u0111a ph\u1ed5 th\u00ec kh\u00f4ng.<\/p>\n\n\n\n

    V\u1eadt li\u1ec7u c\u1ed1 \u0111\u1ecbnh<\/strong> quan tr\u1ecdng v\u00ec l\u00fd do t\u01b0\u01a1ng t\u1ef1 nh\u01b0 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb. B\u1ea5t k\u1ef3 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac c\u1ed1 \u0111\u1ecbnh n\u00e0o c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i v\u1ebft chuy\u1ec3n kim lo\u1ea1i \u2014 k\u1eb9p th\u00e9p carbon, b\u1ed9 g\u00e1 nh\u00f4m kh\u00f4ng ph\u1ee7 \u2014 s\u1ebd t\u1ea1o ra s\u1ef1 nhi\u1ec5m b\u1ea9n xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng l\u1ed7i ki\u1ec3m tra b\u0103ng t\u1ea7n nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c \u1edf giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng. C\u1ed1 \u0111\u1ecbnh \u0111a ph\u1ed5 n\u00ean ch\u1ec9 s\u1eed d\u1ee5ng b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac l\u00f3t PTFE ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9.<\/p>\n\n\n\n

    X\u1eed l\u00fd gi\u1eefa c\u00e1c ho\u1ea1t \u0111\u1ed9ng<\/strong> \u0111\u00f2i h\u1ecfi k\u1ef7 lu\u1eadt h\u01a1n so v\u1edbi ZnS ti\u00eau chu\u1ea9n. Ph\u00f4i kh\u00f4ng n\u00ean \u0111\u1eb7t tr\u00ean b\u1ec1 m\u1eb7t b\u00e0n kh\u00f4ng \u0111\u01b0\u1ee3c che \u0111\u1eady \u2014 c\u00e1c h\u1ea1t l\u01a1 l\u1eedng trong kh\u00f4ng kh\u00ed l\u1eafng \u0111\u1ecdng tr\u00ean b\u1ec1 m\u1eb7t v\u1eeba c\u1eaft v\u00e0 b\u1ecb k\u1eb9t \u1edf giai \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng. Th\u1ef1c h\u00e0nh ti\u00eau chu\u1ea9n l\u00e0 di chuy\u1ec3n ph\u00f4i \u0111a ph\u1ed5 tr\u1ef1c ti\u1ebfp v\u00e0o khay v\u1eadn chuy\u1ec3n c\u00f3 n\u1eafp \u0111\u1eady sau khi c\u1eaft, v\u00e0 gi\u1eef th\u1eddi gian v\u1eadn chuy\u1ec3n \u0111\u1ebfn m\u00e0i d\u01b0\u1edbi 4 gi\u1edd b\u1ea5t c\u1ee9 khi n\u00e0o c\u00f3 th\u1ec3. Ch\u1ebf \u0111\u1ed9 l\u1ed7i t\u1eeb vi\u1ec7c l\u01b0u tr\u1eef kh\u00f4ng che \u0111\u1eady l\u00e2u ng\u00e0y r\u1ea5t kh\u00f3 ph\u00e1t hi\u1ec7n cho \u0111\u1ebfn khi \u0111\u00e1nh b\u00f3ng l\u00e0m l\u1ed9 l\u1edbp nhi\u1ec5m b\u1ea9n.<\/p>\n\n\n\n

    C\u00e1c Quy tr\u00ecnh m\u00e0i hai m\u1eb7t c\u1eeda s\u1ed5 ZnSe<\/a> quy tr\u00ecnh h\u01b0\u1edbng d\u1eabn bao g\u1ed3m k\u1ef7 lu\u1eadt x\u1eed l\u00fd t\u01b0\u01a1ng t\u1ef1 \u0111\u1ed1i v\u1edbi ph\u00f4i k\u1ebdm selenide, n\u01a1i c\u00e1c c\u00e2n nh\u1eafc v\u1ec1 \u0111\u1ed9 nh\u1ea1y v\u1eadt li\u1ec7u tr\u00f9ng l\u1eb7p v\u1edbi ZnS \u0111a ph\u1ed5.<\/p>\n\n\n\n

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