<\/span><\/h2>\nD\u1ea7u th\u1ee7y l\u1ef1c <\/span>l\u00e0 lo\u1ea1i d\u1ea7u nh\u1edbt \u0111\u01b0\u1ee3c pha ch\u1ebf t\u1eeb d\u1ea7u g\u1ed1c v\u00e0 c\u00e1c ch\u1ea5t ph\u1ee5 gia theo m\u1ed9t c\u00f4ng th\u1ee9c \u0111\u1eb7c bi\u1ec7t d\u00f9ng \u0111\u1ec3 b\u00f4i tr\u01a1n cho c\u00e1c h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c c\u00f4ng nghi\u1ec7p,\u00a0 h\u00e0ng h\u1ea3i, c\u00e1c h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c di \u0111\u1ed9ng. m\u00e0 d\u1ea7u nh\u1edbt th\u1ee7y l\u1ef1c s\u1ebd \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 pha ch\u1ebf th\u00edch h\u1ee3p \u0111\u1ec3 \u0111\u00e1p \u1ee9ng t\u1ed1t c\u00e1c y\u00eau c\u1ea7u b\u00f4i tr\u01a1n ri\u00eang bi\u1ec7t.\u00a0<\/span><\/p>\n\n- C\u1ea5u t\u1ea1o c\u1ee7a d\u1ea7u th\u1ee7y l\u1ef1c<\/b><\/li>\n<\/ol>\n
D\u1ea7u g\u1ed1c: <\/b>D\u1ea7u th\u1ee7y l\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb d\u1ea7u kho\u00e1ng, t\u1ed5ng h\u1ee3p, b\u00e1n t\u1ed5ng h\u1ee3p, ho\u1eb7c d\u1ea7u sinh h\u1ecdc. D\u1ea7u g\u1ed1c l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh quy\u1ebft \u0111\u1ecbnh \u0111\u1eb7c t\u00ednh c\u1ee7a d\u1ea7u th\u1ee7y l\u1ef1c.<\/span><\/p>\nPh\u1ee5 gia: <\/b>D\u1ea7u th\u1ee7y l\u1ef1c th\u01b0\u1eddng c\u00f3 c\u00e1c ph\u1ee5 gia nh\u01b0 ch\u1ea5t ch\u1ed1ng oxy h\u00f3a, ch\u1ea5t ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ea5t l\u00e0m t\u0103ng ch\u1ec9 s\u1ed1 nh\u1edbt \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng.<\/span><\/p>\n\n- \u0110\u1eb7c t\u00ednh quan tr\u1ecdng c\u1ee7a d\u1ea7u th\u1ee7y l\u1ef1c<\/b><\/li>\n<\/ol>\n
Ch\u1ec9 s\u1ed1 \u0111\u1ed9 nh\u1edbt (ISO VG):<\/b> \u0110\u00e2y l\u00e0 ch\u1ec9 s\u1ed1 \u0111o \u0111\u1ed9 nh\u1edbt c\u1ee7a d\u1ea7u th\u1ee7y l\u1ef1c. N\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u1ee7a d\u1ea7u ch\u1ecbu \u00e1p l\u1ef1c, s\u1ef1 b\u00f4i tr\u01a1n.<\/span><\/p>\nKh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t: <\/b>D\u1ea7u th\u1ee7y l\u1ef1c ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc m\u00e0 kh\u00f4ng b\u1ecb ph\u00e2n h\u1ee7y.<\/span><\/p>\nKh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n: <\/b>D\u1ea7u th\u1ee7y l\u1ef1c c\u1ea7n c\u00f3 kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a h\u1ec7 th\u1ed1ng kh\u1ecfi m\u00e0i m\u00f2n.<\/span><\/p>\nKh\u1ea3 n\u0103ng t\u00e1ch n\u01b0\u1edbc, ch\u1ed1ng t\u1ea1o b\u1ecdt: <\/b>Gi\u00fap duy tr\u00ec s\u1ea1ch h\u1ec7 th\u1ed1ng v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c.<\/span><\/p>\n\n- \u1ee8ng d\u1ee5ng c\u1ee7a d\u1ea7u th\u1ee7y l\u1ef1c<\/b><\/li>\n<\/ol>\n
D\u1ea7u th\u1ee7y l\u1ef1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00f4ng nghi\u1ec7p, bao g\u1ed3m m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p, thi\u1ebft b\u1ecb n\u00e2ng h\u1ea1, m\u00e1y m\u00f3c x\u00e2y d\u1ef1ng, thi\u1ebft b\u1ecb n\u00f4ng nghi\u1ec7p, v\u00e0 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c.<\/span><\/p>\nN\u00f3 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u s\u1ee9c \u00e9p cao nh\u01b0 trong m\u00e1y \u00e9p, m\u00e1y gia c\u00f4ng kim lo\u1ea1i v\u00e0 thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m.<\/span><\/p>\n\n- B\u1ea3o tr\u00ec v\u00e0 thay th\u1ebf<\/b><\/li>\n<\/ol>\n
D\u1ea7u th\u1ee7y l\u1ef1c c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean. Vi\u1ec7c ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng d\u1ea7u, thay th\u1ebf n\u00f3 khi c\u1ea7n thi\u1ebft l\u00e0 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c ho\u1ea1t \u0111\u1ed9ng t\u1ed1t.<\/span><\/p>\n\n- M\u00f4i tr\u01b0\u1eddng, s\u1ef1 b\u1ec1n v\u1eefng<\/b><\/li>\n<\/ol>\n
C\u00f3 <\/span>c\u00e1c lo\u1ea1i d\u1ea7u th\u1ee7y l\u1ef1c <\/b>sinh h\u1ecdc \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb ngu\u1ed3n t\u00e1i t\u1ea1o v\u00e0 kh\u00f4ng g\u00e2y h\u1ea1i cho m\u00f4i tr\u01b0\u1eddng. Vi\u1ec7c n\u00e0y l\u00e0m gi\u1ea3m t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c l\u00ean m\u00f4i tr\u01b0\u1eddng v\u00e0 th\u00fac \u0111\u1ea9y s\u1ef1 b\u1ec1n v\u1eefng.<\/span><\/p>\nD\u1ea7u th\u1ee7y l\u1ef1c l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c th\u00fac \u0111\u1ea9y hi\u1ec7u su\u1ea5t, s\u1ef1 tin c\u1eady c\u1ee7a m\u00e1y m\u00f3c v\u00e0 thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p.<\/span><\/p>\n<\/span>II. C\u00e1c lo\u1ea1i d\u1ea7u th\u1ee7y l\u1ef1c Shell Tellus \u0111ang \u0111\u01b0\u1ee3c H\u1ed3ng D\u01b0\u01a1ng ph\u00e2n ph\u1ed1i v\u1edbi gi\u00e1 \u01b0u \u0111\u00e3i nh\u1ea5t:<\/b><\/span><\/h2>\n<\/span>1. D\u1ea7u th\u1ee7y l\u1ef1c Shell Tellus S2 V 68 <\/b>(ISO VG 68)<\/i><\/b>:<\/b><\/span><\/h3>\nLo\u1ea1i:<\/b> D\u1ea7u th\u1ee7y l\u1ef1c ISO HV s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 ri\u00eang bi\u1ec7t \u0111\u1ed9c quy\u1ec1n c\u1ee7a Shell k\u1ebft h\u1ee3p v\u1edbi kh\u1ea3 n\u0103ng gi\u1eef v\u1eefng \u0111\u1ed9 nh\u1edbt d\u01b0\u1edbi \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c kh\u1eafc nghi\u1ec7t.\u00a0<\/span><\/p>\n\u1ee8ng d\u1ee5ng: <\/b>Cho m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p, c\u1ea9u n\u00e2ng, m\u00e1y x\u00fac v\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p kh\u00e1c.<\/span><\/p>\n\u01afu \u0111i\u1ec3m: <\/b>\u00a0<\/b>Tu\u1ed5i th\u1ecd d\u1ea7u cao – Ti\u1ebft ki\u1ec7m chi ph\u00ed b\u1ea3o tr\u00ec, d\u1ea7u c\u00f3 \u0111\u1ed9 s\u1ea1ch cao, \u1ed5n \u0111\u1ecbnh d\u01b0\u1edbi \u00e1p su\u1ea5t c\u01a1 h\u1ecdc, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t, t\u00e1ch n\u01b0\u1edbc, ch\u1ed1ng t\u1ea1o b\u1ecdt.<\/span><\/p>\n