{"id":6782,"date":"2021-10-31T00:38:02","date_gmt":"2021-10-30T17:38:02","guid":{"rendered":"https:\/\/miennampetro.com.vn\/en\/?p=6782"},"modified":"2022-07-28T16:04:43","modified_gmt":"2022-07-28T09:04:43","slug":"do-xuyen-kim-va-cap-nlgi-do-dac-long-cua-mo-boi-tron","status":"publish","type":"post","link":"https:\/\/miennampetro.com.vn\/en\/do-xuyen-kim-va-cap-nlgi-do-dac-long-cua-mo-boi-tron\/","title":{"rendered":"\u0110\u1ed9 xuy\u00ean kim v\u00e0 c\u1ea5p NLGI – \u0110\u1ed9 \u0111\u1eb7c l\u1ecfng c\u1ee7a m\u1ee1 b\u00f4i tr\u01a1n"},"content":{"rendered":"

1. C\u1ea5p\u00a0NLGI l\u00e0 g\u00ec ?<\/h2>\n

NLGI l\u00e0 t\u00ean vi\u1ebft t\u1eaft c\u1ee7a National Lubricating Grease Institute – Vi\u1ec7n m\u1ee1 b\u00f4i tr\u01a1n Qu\u1ed1c gia – Hoa Kyf \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp t\u1eeb n\u0103m 1993.<\/p>\n

\"Nl\"<\/p>\n

Vi\u1ec7n M\u1ee1 b\u00f4i tr\u01a1n Qu<\/em>\u1ed1c<\/em>\u00a0gia<\/em>\u00a0Hoa K\u1ef3<\/em><\/p>\n

C\u1ea5p NLGI (NLGI Consistency Grade) l\u00e0 c\u00e1c con s\u1ed1 bi\u1ec3u th\u1ecb \u0111\u1ed9 s\u1ec7t c\u1ee7a m\u1ee1 b\u00f4i tr\u01a1n t\u01b0\u01a1ng \u1ee9ng v\u1edbi s\u1ed1 \u0111o \u0111\u1ed9 xuy\u00ean kim (penetration number) theo ph\u00e2n lo\u1ea1i ti\u00eau chu\u1ea9n c\u1ee7a m\u1ee1 b\u00f4i tr\u01a1n do Vi\u1ec7n M\u1ee1 b\u00f4i tr\u01a1n Qu\u1ed1c gia thi\u1ebft l\u1eadp.<\/p>\n

\u0110\u01b0\u1ee3c th\u1eed nghi\u1ec7m theo ti\u00eau chu\u1ea9n ASTM\u00a0D4950\u00a0(\u201cph\u00e2n lo\u1ea1i ti\u00eau chu\u1ea9n v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a m\u1ee1 b\u00f4i tr\u01a1n d\u1ecbch v\u1ee5 \u00f4 t\u00f4\u201d)<\/em>\u00a0v\u00e0\u00a0SAE\u00a0J310\u00a0(\u201cm\u1ee1 b\u00f4i tr\u01a1n \u00f4 t\u00f4\u201d)<\/em>, ph\u00e2n lo\u1ea1i c\u1ee7a NLGI \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u1ea3 ng\u00e0nh \u00f4-t\u00f4 v\u00e0 c\u00f4ng nghi\u1ec7p. C\u1ea5p NLGI c\u0169ng l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ee7a m\u00e3 quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n ISO 6743-9 \u201cch\u1ea5t b\u00f4i tr\u01a1n, d\u1ea7u c\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m li\u00ean quan (lo\u1ea1i L) \u2013 ph\u00e2n lo\u1ea1i \u2013 ph\u1ea7n 9: h\u1ecd X (m\u1ee1 b\u00f4i tr\u01a1n)\u201d.<\/p>\n

C\u1ea5p NLGI l\u00e0 kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh lo\u1ea1i m\u1ee1 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u b\u1edfi m\u1ed9t \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. Tuy nhi\u00ean, n\u00f3 b\u1ed5 sung cho c\u00e1c ph\u00e2n lo\u1ea1i kh\u00e1c (ch\u1eb3ng h\u1ea1n nh\u01b0\u00a0ASTM D4950\u00a0v\u00e0\u00a0ISO 6743-9\u00a0).\u00a0Ngo\u00e0i \u0111\u1ed9 s\u1ec7t, c\u00e1c t\u00ednh ch\u1ea5t kh\u00e1c (ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac v\u00e0 c\u01a1 h\u1ecdc, \u0111\u1ed9 nh\u1edbt bi\u1ec3u ki\u1ebfn, kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a, v.v.) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a m\u1ee1 v\u1edbi m\u1ed9t \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n

\"B1\"<\/p>\n

Theo ti\u00eau chu\u1ea9n n\u00e0y th\u00ec m\u1ee1 \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh 9 c\u1ea5p: 000, 00, 0, 1, 2, 3, 4, 5, 6 trong \u0111\u00f3 s\u1ed1 k\u00fd hi\u1ec7u c\u00e0ng l\u1edbn th\u00ec \u0111\u1ed9 xuy\u00ean kim c\u00e0ng nh\u1ecf. Lo\u1ea1i 6 l\u00e0 m\u1ee1 r\u1eafn nh\u1ea5t v\u1edbi \u0111\u1ed9 xuy\u00ean kim l\u00e0 85-115 (g\u1ea7n nh\u01b0 \u0111\u1ea5t s\u00e9t), lo\u1ea1i 000 l\u00e0 lo\u00e3ng nh\u1ea5t (g\u1ea7n nh\u01b0 d\u1ea7u) v\u1edbi \u0111\u1ed9 xuy\u00ean kim l\u1edbn nh\u1ea5t 445-475.<\/p>\n

\"b2\"<\/h2>\n

2. Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra \u0111\u1ed9 xuy\u00ean kim c\u1ee7a m\u1ee1 b\u00f4i tr\u01a1n<\/h2>\n

\"vvv\"<\/h2>\n

Ph\u00e2n lo\u1ea1i c\u1ee7a NLGI x\u00e1c \u0111\u1ecbnh ch\u00edn c\u1ea5p, m\u1ed7i c\u1ea5p li\u00ean quan \u0111\u1ebfn m\u1ed9t gi\u00e1 tr\u1ecb c\u1ee7a \u0111\u1ed9 xuy\u00ean kim \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng th\u1eed nghi\u1ec7m ASTM D217.<\/p>\n

Th\u1eed nghi\u1ec7m n\u00e0y d\u00f9ng hai thi\u1ebft b\u1ecb. Thi\u1ebft b\u1ecb \u0111\u1ea7u ti\u00ean bao g\u1ed3m m\u1ed9t b\u00ecnh ch\u1ee9a k\u00edn v\u00e0 m\u1ed9t p\u00edt t\u00f4ng. M\u1eb7t c\u1ee7a p\u00edt t\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ee5c l\u1ed7 \u0111\u1ec3 m\u1ee1 ch\u1ea3y t\u1eeb m\u1eb7t n\u00e0y sang m\u1eb7t kh\u00e1c c\u1ee7a p\u00edt t\u00f4ng khi p\u00edt t\u00f4ng l\u00e0m vi\u1ec7c l\u00ean xu\u1ed1ng. M\u1ee1 th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c cho v\u00e0o b\u00ecnh ch\u1ee9a v\u00e0 \u0111\u01b0\u1ee3c pit-t\u00f4ng gi\u00e3 60 l\u1ea7n, trong th\u1eddi gian \u0111\u00f3 thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m v\u00e0 m\u1ee1 \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf nhi\u1ec7t \u0111\u1ed9 25\u00b0C.<\/p>\n

\"xuy\u00eanPh\u01b0\u01a1ng ph\u00e1p \u0111o \u0111\u1ed9 xuy\u00ean kim<\/em><\/p>\n

Sau khi gi\u00e3, m\u1ee1 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o thi\u1ebft b\u1ecb \u0111o \u0111\u1ed9 xuy\u00ean kim. Thi\u1ebft b\u1ecb\u00a0n\u00e0y bao g\u1ed3m m\u1ed9t b\u00ecnh ch\u1ee9a, m\u1ed9t c\u00f4n c\u00f3 c\u1ea5u t\u1ea1o \u0111\u1eb7c bi\u1ec7t v\u00e0 m\u1ed9t b\u1ea3ng ch\u1ec9 th\u1ecb s\u1ed1 \u0111o. B\u00ecnh ch\u1ee9a \u0111\u1ea7y m\u1ee1 v\u00e0 b\u1ec1 m\u1eb7t tr\u00ean c\u1ee7a m\u1ee1 \u0111\u01b0\u1ee3c l\u00e0m nh\u1eb5n. C\u00f4n \u0111\u01b0\u1ee3c \u0111\u1eb7t sao cho m\u0169i c\u1ee7a n\u00f3 v\u1eeba ch\u1ea1m v\u00e0o b\u1ec1 m\u1eb7t m\u1ee1 v\u00e0 b\u1ea3ng ch\u1ec9 th\u1ecb \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf s\u1ed1 0 t\u1ea1i v\u1ecb tr\u00ed n\u00e0y. Khi th\u1eed nghi\u1ec7m b\u1eaft \u0111\u1ea7u, tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a c\u00f4n s\u1ebd khi\u1ebfn n\u00f3 xuy\u00ean v\u00e0o m\u1ee1. Sau 5 gi\u00e2y, \u0111\u1ed9 l\u00fan c\u1ee7a c\u00f4n v\u00e0o m\u1ee1 \u0111\u01b0\u1ee3c \u0111\u1ecdc tr\u00ean b\u1ea3ng.<\/p>\n

Miennampetro<\/strong><\/a> v\u1edbi \u0111\u1ed9i ng\u0169 k\u0129 s\u01b0 tr\u00ecnh \u0111\u1ed9 cao v\u00e0 nhi\u1ec1u n\u0103m kinh nghi\u1ec7m, c\u00f9ng v\u1edbi ph\u00f2ng th\u00ed nghi\u1ec7m nhi\u1ec1u trang thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i s\u1ebd mang \u0111\u1ebfn cho qu\u00fd kh\u00e1ch h\u00e0ng s\u1ef1 l\u1ef1a ch\u1ecdn ho\u00e0n h\u1ea3o v\u1edbi nhi\u1ec1u s\u1ea3n ph\u1ea9m m\u1ee1 b\u00f4i tr\u01a1n <\/a>cao c\u1ea5p ch\u1ea5t l\u01b0\u1ee3ng ph\u1ee5c v\u1ee5 s\u1ea3n xu\u1ea5t cho doanh nghi\u1ec7p c\u1ee7a b\u1ea1n.<\/p>\n

\u1ede \u0111\u00e2y, MiennamPetro mu\u1ed1n gi\u1edbi thi\u1ec7u \u0111\u1ebfn qu\u00fd kh\u00e1ch h\u00e0ng s\u1ea3n ph\u1ea9m m\u1ee1 SINOGREASE MP3<\/a> c\u00f3 <\/strong>c\u1ea5p NLGI 3 <\/strong>l\u00e0 m\u1ee1 b\u00f2 \u0111a d\u1ee5ng cao c\u1ea5p Lithium hydroxyl-stearat, \u0111\u1eb7c bi\u1ec7t c\u00f4ng th\u1ee9c t\u1eeb d\u1ea7u g\u1ed1c kho\u00e1ng, lithium x\u00e0 ph\u00f2ng ho\u00e1 v\u00e0 c\u00e1c lo\u1ea1i ph\u1ee5 gia \u0111\u1ec3 ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh oxi ho\u00e1 cho \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u1ea3i tr\u1ecdng v\u1eeba ph\u1ea3i trong ng\u00e0nh \u00f4 t\u00f4 v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p>\n

\"m\u1ee1<\/p>\n

SINOG<\/em>REASE<\/em><\/a> MP3 l\u00e0 m\u1ee1 b\u00f2 \u0111a d\u1ee5ng cao c\u1ea5p Lithium hydroxyl-stearat<\/em> NLGI<\/em> 3<\/em><\/strong><\/a><\/p>\n

\u0110\u1eb7c t\u00ednh:<\/h4>\n