C\u00e1ch l\u1ef1a ch\u1ecdn d\u1ea7u tu\u1ea7n ho\u00e0n ph\u00f9 h\u1ee3p<\/em><\/figcaption><\/figure>\nD\u1ea7u tu\u1ea7n ho\u00e0n l\u00e0 lo\u1ea1i d\u1ea7u nh\u1eddn \u0111\u01b0\u1ee3c \u0111\u1eb7c bi\u1ec7t thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng b\u00f4i tr\u01a1n trung t\u00e2m trong ng\u00e0nh c\u00f4ng nghi\u1ec7p, nh\u1eb1m m\u1ee5c \u0111\u00edch b\u00f4i tr\u01a1n c\u00e1c b\u00e1nh r\u0103ng v\u00e0 \u1ed5 \u0111\u1ee1.<\/span><\/p>\nT\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a qu\u00e1 tr\u00ecnh b\u00f4i tr\u01a1n, d\u1ea7u tu\u1ea7n ho\u00e0n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb d\u1ea7u g\u1ed1c kho\u00e1ng kh\u00f4ng ch\u1ee9a ph\u1ee5 gia, ho\u1eb7c \u0111\u01b0\u1ee3c gia c\u00f4ng v\u1edbi c\u00e1c ph\u1ee5 gia nh\u01b0 ch\u1ea5t ch\u1ed1ng r\u1ec9\/ch\u1ed1ng \u00f4-xi h\u00f3a (R&O) v\u00e0 th\u1eadm ch\u00ed c\u00f3 th\u00eam c\u00e1c ph\u1ee5 gia ch\u1ed1ng m\u00e0i m\u00f2n (AW).\u00a0<\/span><\/p>\n\u0110\u1eb7c bi\u1ec7t, trong nh\u1eefng \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 chu k\u1ef3 thay d\u1ea7u k\u00e9o d\u00e0i, d\u1ea7u tu\u1ea7n ho\u00e0n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb c\u00e1c lo\u1ea1i d\u1ea7u t\u1ed5ng h\u1ee3p nh\u01b0 PAO (polyalphaolefins) hay PAG (polyalkylene glycols), k\u1ebft h\u1ee3p v\u1edbi c\u00e1c h\u1ec7 ph\u1ee5 gia ph\u00f9 h\u1ee3p.<\/span><\/p>\n<\/span>II. C\u00e1ch l\u1ef1a ch\u1ecdn d\u1ea7u tu\u1ea7n ho\u00e0n ph\u00f9 h\u1ee3p<\/b><\/span><\/h2>\nTrong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng, d\u1ea7u tu\u1ea7n ho\u00e0n ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh kh\u00e1c nhau nh\u01b0 bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9, \u00e1p su\u1ea5t, t\u1ed1c \u0111\u1ed9 v\u00e0 m\u00f4i tr\u01b0\u1eddng b\u1ecb \u00f4 nhi\u1ec5m. V\u00ec v\u1eady, \u0111\u1ec3 b\u1ea3o v\u1ec7 tu\u1ed5i th\u1ecd c\u1ee7a d\u1ea7u v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb m\u00e1y m\u00f3c, ch\u00fang ta c\u1ea7n bi\u1ebft\u00a0 c\u00e1ch l\u1ef1a ch\u1ecdn d\u1ea7u tu\u1ea7n ho\u00e0n ph\u00f9 h\u1ee3p.\u00a0<\/span><\/p>\nN\u00ean ch\u1ecdn d\u1ea7u c\u00f3 t\u00ednh n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng \u0103n m\u00f2n, kh\u1ea3 n\u0103ng t\u00e1ch n\u01b0\u1edbc v\u00e0 kh\u00ed, c\u00f9ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u00f3ng c\u1eb7n v\u00e0 \u00f4 nhi\u1ec5m. B\u00ean c\u1ea1nh \u0111\u00f3, d\u1ea7u tu\u1ea7n ho\u00e0n ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ho\u00e0n h\u1ea3o v\u1edbi c\u00e1c v\u1eadt li\u1ec7u trong h\u1ec7 th\u1ed1ng, bao g\u1ed3m kim lo\u1ea1i, \u1ed1ng v\u00e0 ph\u1ed1t d\u1ea7u.<\/span><\/p>\n