{"id":5909,"date":"2017-06-14T18:49:51","date_gmt":"2017-06-14T11:49:51","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=5909"},"modified":"2017-10-03T11:09:12","modified_gmt":"2017-10-03T04:09:12","slug":"nghien-cuu-thiet-ke-che-tao-bo-ong-mau-khoan-than","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/nghien-cuu-thiet-ke-che-tao-bo-ong-mau-khoan-than\/","title":{"rendered":"Nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf ch\u1ebf t\u1ea1o b\u1ed9 \u1ed1ng m\u1eabu khoan than"},"content":{"rendered":"

V\u1edbi kh\u1ed1i l\u01b0\u1ee3ng khoan th\u0103m d\u00f2 kh\u1ea3o s\u00e1t l\u1edbn h\u00e0ng n\u0103m \u0111\u1ec3 ho\u00e0n th\u00e0nh m\u1ee5c ti\u00eau c\u1ee7a TKV ngo\u00e0i vi\u1ec7c nghi\u00ean c\u1ee9u n\u00e2ng cao n\u0103ng su\u1ea5t khoan, c\u00e1c \u0111\u01a1n v\u1ecb th\u0103m d\u00f2 than c\u00f2n \u0111\u1ea9y m\u1ea1nh nghi\u00ean c\u1ee9u n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng l\u1ea5y m\u1eaby, tr\u00ean c\u01a1 s\u1edf \u00e1p d\u1ee5ng c\u00e1c b\u1ed9 \u1ed1ng m\u1eabu c\u1ee7a Li\u00ean X\u00f4 \u0111\u00e3 ch\u1ebf t\u1ea1o ra m\u1ed9t s\u1ed1 b\u1ed9 \u1ed1ng m\u1eabu nh\u1eb1m n\u00e2ng cao t\u1ef7 l\u1ec7 l\u1ea5y m\u1eabu nh\u01b0: B\u1ed9 \u1ed1ng m\u1eabu H\u1eefu Ngh\u1ecb, b\u1ed9 \u1ed1ng m\u1eabu khoan than hai \u1ed1ng c\u00f9ng quay.<\/strong><\/p>\n

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Do nh\u1eefng ph\u1ee9c t\u1ea1p c\u1ee7a \u0111\u1ecba ch\u1ea5t, \u0111a s\u1ed1 c\u00e1c \u0111\u01a1n v\u1ecb kh\u00f4ng d\u00e1m s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p khoan \u1ed1ng m\u1eabu lu\u1ed3n khi g\u1eb7p s\u1ef1 c\u1ed1 th\u00ec t\u1ed5n th\u1ea5t kinh t\u1ebf l\u00e0 r\u1ea5t l\u1edbn. Ch\u00ednh v\u00ec v\u1eady h\u1ecd \u0111\u00e3 ch\u1ecdn ph\u01b0\u01a1ng \u00e1n gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng l\u1ea5y m\u1eabu \u0111\u1ec3 an to\u00e0n v\u1ec1 kinh t\u1ebf. T\u00ecnh h\u00ecnh th\u1ef1c t\u1ebf c\u1ee7a c\u00e1c \u0111\u01a1n v\u1ecb thi c\u00f4ng v\u00e0 ngay c\u1ea3 c\u00e1c \u0111\u1ed9i thi c\u00f4ng c\u1ee7a C\u00f4ng ty c\u1ed5 ph\u1ea7n Khoan v\u00e0 D\u1ecbch v\u1ee5 k\u1ef9 thu\u1eadt khai th\u00e1c m\u1ecf. Nh\u00f3m t\u00e1c gi\u1ea3 do KS Ph\u1ea1m V\u0103n Nh\u00e2m l\u00e0m ch\u1ee7 nhi\u1ec7m \u0111\u1ec1 t\u00e0i \u201cNghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf ch\u1ebf t\u1ea1o b\u1ed9 \u1ed1ng m\u1eabu khoan than\u201d \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t nghi\u00ean c\u1ee9u th\u00e0nh c\u00f4ng b\u1ed9 \u1ed1ng m\u1eabu khoan than. V\u1edbi b\u1ed9 \u1ed1ng n\u00e0y ph\u01b0\u01a1ng ph\u00e1p khoan v\u1eabn l\u00e0 ph\u01b0\u01a1ng ph\u00e1p khoan truy\u1ec1n th\u1ed1ng c\u00e1c \u0111\u01a1n v\u1ecb \u0111ang \u00e1p d\u1ee5ng nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng l\u1ea5y m\u1eabu l\u1ea1i l\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p khoan l\u1ea5y m\u1eabu lu\u1ed3n hi\u1ec7n \u0111\u1ea1i, b\u1ed9 \u1ed1ng m\u1eabu khoan than ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c v\u1ec9a than v\u00f9ng Qu\u1ea3ng Ninh, \u01b0u \u0111i\u1ec3m c\u1ee7a b\u1ed9 \u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eb3ng \u0111\u1ecbnh.<\/p>\n

V\u1edbi m\u1ee5c ti\u00eau n\u00e2ng cao t\u1ef7 l\u1ec7 l\u1ea5y m\u1eabu trong t\u1ea7ng than khi khoan th\u0103m d\u00f2 than n\u00f3i ri\u00eang v\u00e0 n\u00e2ng cao t\u1ef7 l\u1ec7 l\u1ea5y m\u1eabu trong c\u00e1c t\u1ea7ng \u0111\u1ecba ch\u1ea5t b\u1edf r\u1eddi, v\u1ee1 v\u1ee5n, d\u1ec5 b\u1ecb ph\u00e1 h\u1ee7y khi b\u1ecb t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u01a1 h\u1ecdc v\u00e0 th\u1ee7y h\u1ecdc. B\u1ed9 \u1ed1ng m\u1eabu khoan than \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u c\u00f3 nh\u1eefng \u0111\u1eb7c t\u00ednh nh\u1eb1m lo\u1ea1i tr\u1eeb t\u1ed1i \u0111a nh\u1eefng \u1ea3nh h\u01b0\u1edfng c\u1ee7a t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc \u0111\u1ebfn m\u1eabu khoan nh\u1edd c\u1ea5u t\u1ea1o c\u00f3 hai l\u1edbp \u1ed1ng: \u1ed0ng ngo\u00e0i c\u00f3 t\u00e1c d\u1ee5ng ch\u00ednh l\u00e0 c\u1ed9t \u1ed1ng trung gian ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c c\u01a1 h\u1ecdc, truy\u1ec1n m\u00f4 men quay, t\u1ea3i tr\u1ecdng xu\u1ed1ng \u0111\u00e1y l\u1ed7 khoan cho l\u01b0\u1ee1i khoan ph\u00e1 h\u1ee7y \u0111\u1ea5t \u0111\u00e1 t\u1ea1o m\u1eabu l\u00f5i khoan; \u1ed0ng ngo\u00e0i v\u00e0 c\u00e1c m\u1ed1i li\u00ean k\u1ebft c\u1ea7n \u0111\u1ee7 c\u1ee9ng ngo\u00e0i ra c\u1ea7n k\u00edn kh\u00edt \u0111\u1ec3 ng\u0103n c\u00e1ch d\u00f2ng n\u01b0\u1edbc r\u1eeda \u0111\u1ea3m b\u1ea3o n\u01b0\u1edbc r\u1eeda xu\u1ed1ng \u0111\u1ebf l\u01b0\u1ee1i khoan l\u00e0m m\u00e1t l\u01b0\u1ee1i khoan v\u00e0 v\u1eadn chuy\u1ec3n m\u00f9n khoan. \u1ed0ng ngo\u00e0i \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb ph\u00f4i \u1ed1ng th\u00e9p \u0111\u00fac C30 \u00d8 73*5mm c\u00f3 s\u1eb5n tr\u00ean th\u1ecb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1eaft c\u00f3 chi\u1ec1u d\u00e0i 2,4m, m\u1ed9t \u0111\u1ea7u ti\u1ec7n ren n\u1ed1i \u0111\u00fac chuy\u1ec3n ti\u1ebfp (perekhot 73) m\u1ed9t \u0111\u1ea7u ti\u1ec7n ren l\u01b0\u1ee1i khoan. Y\u00eau c\u1ea7u ch\u1ebf t\u1ea1o g\u1ed3m c\u00f3 th\u1ee3 ti\u1ec7n, m\u00e1y ti\u1ec7n \u1ed1ng (\u1edf \u0111\u00e2y ch\u00fang t\u00f4i s\u1eed d\u1ee5ng m\u00e1y 1K62), dao ti\u1ec7n T15K6, th\u01b0\u1edbc c\u1eb7p. Ti\u1ec7n kh\u1ecfa m\u1eb7t trong \u1ed1ng \u0111\u1ebfn \u0111\u01b0\u1eddng k nh \u00d8 65, ti\u1ec7n ren c\u00f3 t = 4, \u0111\u01b0\u1eddng k\u00ednh ch\u00e2n ren \u00d8 68, chi\u1ec1u d\u00e0i ti\u1ec7n ren l\u00e0 41mm. Nhi\u1ec7t luy\u1ec7n \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 38- 42 HRC sau \u0111\u00f3 nhu\u1ed9m \u0111en c\u00e1c b\u1ec1 m\u1eb7t.<\/p>\n

\u1ed0ng trong ph\u1ea3i \u0111\u1ea3m b\u1ea3o b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c m\u1eabu l\u00f5i trong su\u1ed1t qu\u00e1 tr\u00ecnh hi\u1ec7p khoan kh\u00f4ng b\u1ecb t\u00e1c h\u1ea1i g\u00e2y ra do chuy\u1ec3n \u0111\u1ed9ng c\u01a1 h\u1ecdc c\u0169ng nh\u01b0 s\u1ef1 ph\u00e1 h\u1ee7y c\u1ee7a d\u00f2ng n\u01b0\u1edbc r\u1eeda. V\u00ec v\u1eady \u1ed1ng trong \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf kh\u00f4ng quay trong qu\u00e1 tr\u00ecnh khoan, ch\u1ec9 chuy\u1ec3n \u0111\u1ed9ng t\u1ecbnh ti\u1ebfn theo chi\u1ec1u s\u00e2u khoan \u0111\u01b0\u1ee3c \u1ed1ng trong \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng trong khoan, \u1ed1ng v\u00e0 c\u00e1c m\u1ed1i gh\u00e9p \u0111\u1ea3m b\u1ea3o k\u00edn \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a d\u00f2ng n\u01b0\u1edbc r\u1eeda \u1ed1ng trong c\u1ea7n c\u00f3 chi\u1ec1u d\u00e0i ch\u1ee9a m\u1eabu \u0111\u1ea1t 2 m\u00e9t l\u00e0 chi\u1ec1u d\u00e0i b\u00ecnh qu\u00e2n c\u1ee7a c\u00e1c hi\u1ec7p khoan m\u1eabu \u1edf v\u00f9ng than v\u00e0 c\u00e1c v\u00f9ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ecba ch\u1ea5t ph\u1ee9c t\u1ea1p, \u0111\u00e2y c\u0169ng l\u00e0 chi\u1ec1u d\u00e0i c\u01a1 s\u1edf l\u00e0m c\u0103n c\u1ee9 thi\u1ebft k\u1ebf cho c\u00e1c chi ti\u1ebft kh\u00e1c c\u1ee7a b\u1ed9 \u1ed1ng (\u1ed1ng ngo\u00e0i, \u0111\u1ea7u n\u1ed1i, \u0111\u1ea7u chuy\u1ec3n ti\u1ebfp…). \u1ed0ng trong \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb ph\u00f4i \u1ed1ng th\u00e9p \u0111\u00fac C30 \u00d8 57*3,5mm c\u00f3 s\u1eb5n tr\u00ean th\u1ecb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1eaft c\u00f3 chi\u1ec1u d\u00e0i 2,14m, m\u1ed9t \u0111\u1ea7u ti\u1ec7n ren n\u1ed1i \u0111\u1ea7u chuy\u1ec3n ti\u1ebfp ren trong, m\u1ed9t \u0111\u1ea7u ti\u1ec7n ren l\u01b0\u1ee1i s\u1ea5n ren ngo\u00e0i, ch\u00fa \u00fd \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng k\u00ednh. Y\u00eau c\u1ea7u ch\u1ebf t\u1ea1o g\u1ed3m c\u00f3 th\u1ee3 ti\u1ec7n, m\u00e1y ti\u1ec7n \u1ed1ng (\u1edf \u0111\u00e2y ch\u00fang t\u00f4i s\u1eed d\u1ee5ng m\u00e1y 1K62), dao ti\u1ec7n T15K6, th\u01b0\u1edbc c\u1eb7p. Nhi\u1ec7t luy\u1ec7n \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 38- 42 HRC sau \u0111\u00f3 nhu\u1ed9m \u0111en c\u00e1c b\u1ec1 m\u1eb7t.<\/p>\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u1ed1ng trong kh\u00f4ng quay trong qu\u00e1 tr\u00ecnh khoan ch\u00fang t\u00f4i \u0111\u00e3 nghi\u00ean c\u1ee9u c\u00e1c c\u01a1 c\u1ea5u ng\u1eaft truy\u1ec1n \u0111\u1ed9ng c\u1ee7a c\u00e1c b\u1ed9 \u1ed1ng H\u1eefu Ngh\u1ecb, b\u1ed9 \u1ed1ng m\u1eabu Alecxenco, b\u1ed9 \u1ed1ng m\u1eabu khoan lu\u1ed3n. Trong c\u00e1c b\u1ed9 \u1ed1ng tr\u00ean ch\u00fang t\u00f4i th\u1ea5y c\u01a1 c\u1ea5u ng\u1eaft truy\u1ec1n \u0111\u1ed9ng c\u1ee7a b\u1ed9 \u1ed1ng m\u1eabu lu\u1ed3n c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, ng\u1eaft chuy\u1ec3n \u0111\u1ed9ng t\u1ed1t nh\u1eb9 nh\u00e0ng c\u00f3 th\u00eam c\u01a1 c\u1ea5u b\u00e1o t\u00edn hi\u1ec7u khi \u00e1p l\u1ef1c d\u1ecdc tr\u1ee5c trong \u1ed1ng m\u1eabu trong t\u0103ng cao b\u00e1o hi\u1ec7u s\u1ef1 ch\u00e8n m\u1eabu ho\u1eb7c \u0111\u1ea7y \u1ed1ng ch\u1ee9a m\u1eabu, thi\u1ebft k\u1ebf kh\u00f4ng ph\u1ee9c t\u1ea1p d\u1ec5 d\u00e0ng ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c v\u1edbi c\u00e1c c\u01a1 s\u1edf c\u01a1 kh\u00ed v\u1eeba v\u00e0 nh\u1ecf \u1edf Vi\u1ec7t Nam. C\u00e1c chi ti\u1ebft c\u1ee7a b\u1ed9 ng\u1eaft truy\u1ec1n \u0111\u1ed9ng bao g\u1ed3m: Tr\u1ee5c n\u1ed1i, \u1ed1c h\u00e3m, ch\u1ee5p v\u00f2ng bi, b\u1ea1c ch\u1eb7n \u0111\u1ecbnh h\u01b0\u1edbng, l\u00f2 xo, ph\u1edbt, \u1ed1ng bao, b\u1ea1c \u00e9p, v\u00f2ng bi.<\/p>\n

Tr\u1ee5c n\u1ed1i: C\u00f3 chi\u1ec1u d\u00e0i 320mm \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb th\u00e9p CT45 m\u1ed9t \u0111\u1ea7u ti\u1ec7n ren n\u1ed1i v\u1edbi chuy\u1ec3n ti\u1ebfp, c\u00f3 \u1ed1c h\u00e3m \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh kho\u1ea3ng h\u1edf c\u1ee7a khe n\u01b0\u1edbc d\u01b0\u1edbi l\u01b0\u1ee1i s\u1ea5n, \u0111\u1ea7u kia \u0111\u01b0\u1ee3c ti\u1ec7n b\u1eadc l\u1eafp ph\u1edbt cao su t\u00edn hi\u1ec7u, v\u00f2ng bi, b\u1ea1c ch\u1eb7n, l\u00f2 xo, ph\u00eda cu\u1ed1i ti\u1ec7n ren b\u1eaft \u00eacu.<\/p>\n

Ch\u1ee5p v\u00f2ng bi c\u00f3 t\u00e1c d\u1ee5ng l\u00e0 n\u1eafp \u0111\u1eady \u0111\u1ed3ng th\u1eddi truy\u1ec1n \u00e1p l\u1ef1c d\u1ecdc tr\u1ee5c \u00e9p ph\u1edbt t\u00edn hi\u1ec7u. Ch\u1ee5p v\u00f2ng bi \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb th\u00e9p tr\u1ee5c CT45 \u0111\u01b0\u1eddng k\u00ednh \u00d8 57 c\u00f3 chi\u1ec1u d\u00e0i 27mm \u0111\u01b0\u1ee3c ti\u1ec7n m\u00f3c c\u00e1c \u0111\u01b0\u1eddng k\u00ednh \u00d8 25, \u00d8 48, \u00d8 51 trong \u0111\u00f3 \u00d8 48 \u0111\u1ec3 l\u1eafp v\u00f2ng bi. Chi ti\u1ebft khi gia c\u00f4ng tinh xong \u0111\u01b0\u1ee3c nhi\u1ec7t luy\u1ec7n \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 38 – 42 HRC sau \u0111\u00f3 nhu\u1ed9m \u0111en.<\/p>\n

B\u1ea1c ch\u1eb7n \u0111\u1ecbnh h\u01b0\u1edbng c\u00f3 t\u00e1c d\u1ee5ng \u0111\u1ecbnh h\u01b0\u1edbng cho \u1ed1ng trong ph\u00eda trong \u0111\u01b0\u1ee3c \u0111\u00f3ng b\u1ea1c \u0111\u1ed3ng ch\u1ed1ng m\u00e0i m\u00f2n, ph\u00eda ngo\u00e0i m\u1ed9t \u0111\u1ea7u c\u00f3 ren n\u1ed1i v\u1edbi \u1ed1ng bao. \u0110\u01b0\u1ee3c gia c\u00f4ng t\u1eeb th\u00e9p tr\u1ee5c CT45 \u0111\u01b0\u1eddng k\u00ednh \u00d8 60 c\u00f3 chi\u1ec1u d\u00e0i 55mm. Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt gia c\u00f4ng c\u00f3 \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u00e1c \u0111\u01b0\u1eddng k\u00ednh < 0 1, sau khi ho\u00e0n thi\u1ec7n ph\u1ea7n gia c\u00f4ng tinh, ti\u1ebfn h\u00e0nh nhi\u1ec7t luy\u1ec7n \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 38 – 42 HRC.<\/p>\n

L\u00f2 xo \u00e9p c\u00f3 t\u00e1c d\u1ee5ng \u00e9p ch\u1eb7t v\u1eeba \u0111\u1ee7 c\u00e1c chi ti\u1ebft v\u00f2ng bi, b\u1ea1c \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 ph\u1edbt t\u00edn hi\u1ec7u. Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt: D\u00e2y l\u00f2 xo c\u00f3 \u00d8 8, \u0111\u01b0\u1ee3c cu\u1ed1n n\u00f3ng t\u1eeb th\u00e9p 60C2, ram \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 47 – 50 HRC, m\u1ed7i \u0111\u1ea7u c\u00f3 v\u1eeba v\u00f2ng ch\u1eadp, t\u1ed5ng s\u1ed1 v\u00f2ng l\u00e0 7 trong \u0111\u00f3 c\u00f3 5 v\u00f2ng l\u00e0m vi\u1ec7c. L\u00f2 xo \u0111\u01b0\u1ee3c ki\u1ec3m tra b\u1eb1ng c\u00e1ch n\u00e9n vu\u00f4ng g\u00f3c tr\u1ee5c \u0111\u1ebfn khi c\u00e1c b\u01b0\u1edbc ch\u1eadp x\u00edt l\u1ea1i, gi\u1eef nguy\u00ean trong th\u1eddi gian 18 – 24 gi\u1edd ki\u1ec3m tra \u0111\u1ed9 co bi\u1ebfn d\u1ea1ng c\u1ee7a 100 5 mm cho ph\u00e9p l\u00e0 0.5 – 1.<\/p>\n

V\u00f2ng \u0111\u1ec7m ph\u1eb3ng: \u0110\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb th\u00e9p 40X c\u00f3 t\u00e1c d\u1ee5ng \u0111\u1ee1 ch\u1eb7n l\u00f2 xo
\n\u1ed0ng bao tho\u00e1t n\u01b0\u1edbc c\u00f3 t\u00e1c d\u1ee5ng bao k\u00edn v\u00f2ng bi, l\u00e0 \u0111\u1ea7u chuy\u1ec3n ti\u1ebfp n\u1ed1i b\u1ea1c ch\u1eb7n \u0111\u1ecbnh h\u01b0\u1edbng v\u1edbi \u1ed1ng trong \u0111\u1ed3ng th\u1eddi l\u00e0m c\u01a1 c\u1ea5u tho\u00e1t n\u01b0\u1edbc gi\u1ea3m \u00e1p cho \u1ed1ng trong \u1ed0ng bao tho\u00e1t n\u01b0\u1edbc \u0111\u01b0\u1ee3c ch\u1ecdn ch\u1ebf t\u1ea1o gia c\u00f4ng t\u1eeb th\u00e9p tr\u1ee5c CT45 c \u00d8 60 d\u00e0i 225 mm. Y\u00eau c\u1ea7u ch\u1ebf t\u1ea1o g\u1ed3m c\u00f3 th\u1ee3 ti\u1ec7n, m\u00e1y ti\u1ec7n (\u1edf \u0111\u00e2y ch\u00fang t\u00f4i s\u1eed d\u1ee5ng m\u00e1y 1K62), dao ti\u1ec7n T15K6, m\u0169i khoan, th\u01b0\u1edbc c\u1eb7p, \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng k\u00ednh < 0\u22641. Sau khi gia c\u00f4ng tinh ti\u1ebfn h\u00e0nh nhi\u1ec7t luy\u1ec7n \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 38- 42 HRC nhu\u1ed9m \u0111en c\u00e1c b\u1ec1 m\u1eb7t.<\/p>\n

Perekhot73 l\u00e0 \u0111\u1ea7u n\u1ed1i chuy\u1ec3n ti\u1ebfp l\u00ean b\u1ed9 c\u1ea7n khoan khoan \u0111\u1ed3ng th\u1eddi c\u00f3 t\u00e1c d\u1ee5ng l\u00e0 \u0111\u1ea7u chuy\u1ec3n ti\u1ebfp n\u00f2ng \u0111\u00f4i Perekhot73 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb th\u00e9p tr\u1ee5c CT45, ph\u00eda ngo\u00e0i ti\u1ec7n ren M68 n\u1ed1i v\u1edbi b\u1ed9 \u1ed1ng ngo\u00e0i, ph\u00eda trong m\u00f3c l \u00d8 50 ti\u1ec7n ren M50x3 n\u1ed1i v\u1edbi \u0111\u1ea7u chuy\u1ec3n ti\u1ebfp \u1ed1ng trong, \u0111\u1ea7u kia ti\u1ec7n ren ti\u1ec7n ren c\u00f4n 10054\u2019 \u0111\u1ea1t \u00d8 47,5 n\u1ed1i c\u1ea7n 50 Y\u00eau c\u1ea7u \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u00e1c \u0111\u01b0\u1eddng k\u00ednh < 0,1. Trang b\u1ecb c\u00f4ng ngh\u1ec7 g\u1ed3m M\u00e1y ti\u1ec7n, m\u00e1y khoan, th\u01b0\u1edbc c\u1eb7p, m\u0169i khoan dao ti\u1ec7n T15k6.<\/p>\n

Chuy\u1ec3n ti\u1ebfp l\u00e0 \u0111\u1ea7u n\u1ed1i gi\u1eefa perekhot 73 v\u1edbi tr\u1ee5c n\u1ed1i cho ph\u00e9p thay \u0111\u1ed5i, \u0111i\u1ec1u ch\u1ec9nh c\u1ed1 \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch \u1ed1ng trong b\u1edfi \u00eacu h\u00e3m, \u0111\u1ed3ng th\u1eddi l\u00e0 c\u01a1 c\u1ea5u d\u1eabn n\u01b0\u1edbc r\u1eeda \u0111i v\u00e0o kho\u1ea3ng khe h\u1edf gi\u1eefa hai \u1ed1ng ngo\u00e0i v\u00e0 \u1ed1ng trong b\u1edfi 3 l khoan \u0111\u01b0\u1eddng k\u00ednh \u00d8 6 Chuy\u1ec3n ti\u1ebfp \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb th\u00e9p tr\u1ee5c CT45 \u00d8 60 d\u00e0i 95mm, m\u1ed9t ph\u00eda ti\u1ec7n ren M52x3 n\u1ed1i v\u1edbi perekhot 73, \u0111\u1ea7u kia m\u00f3c l\u1ed7 ti\u1ec7n ren M30 n\u1ed1i v\u1edbi tr\u1ee5c n\u1ed1i v\u00e0 c\u00e1ch m\u1eb7t \u0111\u1ea7u n\u00e0y 50mm khoan 3 l\u1ed7 tho\u00e1t n\u01b0\u1edbc \u00d8 6 c\u00e1ch \u0111\u1ec1u. Y\u00eau c\u1ea7u \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u00e1c \u0111\u01b0\u1eddng k\u00ednh < 0,1. Trang b\u1ecb c\u00f4ng ngh\u1ec7 g\u1ed3m m\u00e1y ti\u1ec7n, m\u00e1y khoan, th\u01b0\u1edbc c\u1eb7p, m\u0169i khoan v\u00e0 dao ti\u1ec7n T15K6.<\/p>\n

Chuy\u1ec3n ti\u1ebfp NQ c\u00f3 t\u00e1c d\u1ee5ng cho ph\u00e9p b\u1ed9 \u1ed1ng s\u1eed d\u1ee5ng m\u1edf r\u1ed9ng th\u00e0nh v\u00e0 l\u01b0\u1ee1i khoan NQ \u0111\u1ec3 khoan m\u00e0 kh\u00f4ng ph\u1ea3i ti\u1ec7n ren NQ tr\u1ef1c ti\u1ebfp v\u00e0o \u1ed1ng ngo\u00e0i. \u0110i\u1ec1u 17 n\u00e0y cho ph\u00e9p b\u1ed9 \u1ed1ng s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c c\u1ea3 l\u01b0\u1ee1i khoan h\u1ee3p kim t\u1ef1 ch\u1ebf t\u1ea1o l\u1eabn l\u01b0\u1ee1i khoan NQ c\u00f3 s\u1eb5n tr\u00ean th\u1ecb tr\u01b0\u1eddng \u0111\u1ec3 thu\u1eadn ti\u1ec7n l\u1ef1a ch\u1ecdn trong c\u00e1c t\u1ea7ng \u0111\u1ecba ch\u1ea5t ph\u00f9 h\u1ee3p. Chuy\u1ec3n ti\u1ebfp NQ \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u1ebf t\u1ea1o t\u1eeb ph\u00f4i \u1ed1ng khoan 73*5 c\u00f3 chi\u1ec1u d\u00e0i 150mm th\u00e9p C30. M\u1ed9t \u0111\u1ea7u ti\u1ec7n ren \u1ed1ng 73 d\u00e0i 41mm, m\u1ed9t \u0111\u1ea7u ti\u1ec7n ren NQ d\u00e0i 41mm. Y\u00eau c\u1ea7u \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u00e1c \u0111\u01b0\u1eddng k\u00ednh < 0,1. Trang b\u1ecb c\u00f4ng ngh\u1ec7 g\u1ed3m m\u00e1y ti\u1ec7n 1K62, th\u01b0\u1edbc c p, dao ti\u1ec7n T15K6.<\/p>\n

T\u1eeb k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u00e0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf chi ti\u1ebft c\u1ee7a c\u00e1c chi ti\u1ebft c\u1ea5u th\u00e0nh b\u1ed9 \u1ed1ng, ch\u00fang t\u00f4i \u0111\u00e3 ti\u1ebfn h\u00e0nh thi\u1ebft k\u1ebf nguy\u00ean c\u00f4ng ch\u1ebf t\u1ea1o, c\u00e1c y\u00eau c\u1ea7u trang b\u1ecb c\u00f4ng ngh\u1ec7, y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt gia c\u00f4ng theo th\u1ee9 t\u1ef1 t\u1eebng giai \u0111o\u1ea1n gia c\u00f4ng c\u1ee7a t\u1eebng chi ti\u1ebft, sau \u0111\u00f3 giao nhi\u1ec7m v\u1ee5 cho X\u01b0\u1edfng c\u01a1 kh\u00ed c\u1ee7a C\u00f4ng ty ch\u1ebf t\u1ea1o d\u01b0\u1edbi s\u1ef1 h\u01b0\u1edbng d\u1eabn v\u00e0 gi\u00e1m s\u00e1t c\u1ee7a k\u1ef9 s\u01b0 c\u01a1 kh\u00ed (\u00f4ng Nguy\u1ec5n C\u00f4ng B\u1eb1ng) v\u00e0 \u0111\u00e3 ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng b\u1ed9 \u1ed1ng m\u1eabu khoan than theo \u0111\u00fang thi\u1ebft k\u1ebf.<\/p>\n

C\u00f3 th\u1ec3 t\u00ecm \u0111\u1ecdc b\u00e1o c\u00e1o k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u (m\u00e3 s\u1ed1 12184\/2015) t\u1ea1i C\u1ee5c Th\u00f4ng tin KHCNQG<\/p>\n

\u0110.T.V (NASATI)<\/em><\/p>\n

Ngu\u1ed3n Vista<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

V\u1edbi kh\u1ed1i l\u01b0\u1ee3ng khoan th\u0103m d\u00f2 kh\u1ea3o s\u00e1t l\u1edbn h\u00e0ng n\u0103m \u0111\u1ec3 ho\u00e0n th\u00e0nh m\u1ee5c ti\u00eau c\u1ee7a TKV ngo\u00e0i vi\u1ec7c nghi\u00ean c\u1ee9u n\u00e2ng cao n\u0103ng su\u1ea5t khoan, c\u00e1c \u0111\u01a1n v\u1ecb th\u0103m d\u00f2 than c\u00f2n \u0111\u1ea9y m\u1ea1nh nghi\u00ean c\u1ee9u n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng l\u1ea5y m\u1eaby, tr\u00ean c\u01a1 s\u1edf \u00e1p d\u1ee5ng c\u00e1c b\u1ed9 \u1ed1ng m\u1eabu c\u1ee7a Li\u00ean […]<\/p>\n","protected":false},"author":17,"featured_media":6551,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-5909","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=5909"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5909\/revisions"}],"predecessor-version":[{"id":6552,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5909\/revisions\/6552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6551"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=5909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=5909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=5909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}