{"id":19841,"date":"2020-05-30T07:01:31","date_gmt":"2020-05-30T07:01:31","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=19841"},"modified":"2020-05-30T07:05:05","modified_gmt":"2020-05-30T07:05:05","slug":"main-common-malfunction-causes-of-mechanical-seals","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/main-common-malfunction-causes-of-mechanical-seals\/","title":{"rendered":"C\u00e1c l\u1ed7i ch\u00ednh th\u01b0\u1eddng g\u1eb7p Nguy\u00ean nh\u00e2n c\u1ee7a Ph\u1edbt c\u01a1 kh\u00ed"},"content":{"rendered":"
\n

Ph\u1edbt c\u01a1 kh\u00ed l\u00e0 thi\u1ebft b\u1ecb ng\u0103n r\u00f2 r\u1ec9 ch\u1ea5t l\u1ecfng, \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi \u00edt nh\u1ea5t m\u1ed9t c\u1eb7p m\u1eb7t cu\u1ed1i vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c quay d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a \u00e1p su\u1ea5t ch\u1ea5t l\u1ecfng, l\u1ef1c \u0111\u00e0n h\u1ed3i (ho\u1eb7c l\u1ef1c t\u1eeb) c\u1ee7a c\u01a1 c\u1ea5u b\u00f9 v\u00e0 s\u1ef1 h\u1ee3p t\u00e1c c\u1ee7a ph\u1edbt ph\u1ee5. \u0111\u1ec3 gi\u1eef d\u00ednh v\u00e0 t\u01b0\u01a1ng \u0111\u1ed1i tr\u01b0\u1ee3t.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

C\u1ea5u tr\u00fac con d\u1ea5u c\u01a1 kh\u00ed ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c y\u1ebfu t\u1ed1 sau,<\/p>\n\n\n\n

1. V\u00f2ng t\u0129nh (v\u00f2ng t\u0129nh)<\/p>\n\n\n\n

2. V\u00f2ng xoay (v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng)<\/p>\n\n\n\n

3. Ph\u1ea7n t\u1eed \u0111\u00e0n h\u1ed3i<\/p>\n\n\n\n

4. Gh\u1ebf l\u00f2 xo<\/p>\n\n\n\n

5. \u0110\u1eb7t v\u00edt<\/p>\n\n\n\n

6. V\u00f2ng \u0111\u1ec7m ph\u1ee5 v\u00f2ng quay<\/p>\n\n\n\n

7. V\u00f2ng \u0111\u1ec7m con d\u1ea5u ph\u1ee5 v\u00f2ng c\u1ed1 \u0111\u1ecbnh<\/p>\n\n\n\n

Ch\u1ed1t ch\u1ed1ng xoay \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh tr\u00ean mi\u1ebfng \u0111\u1ec7m \u0111\u1ec3 ng\u0103n kh\u00f4ng cho v\u00f2ng c\u1ed1 \u0111\u1ecbnh quay.<\/p>\n\n\n\n

Ph\u1edbt c\u01a1 kh\u00ed c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 hi\u1ec7u su\u1ea5t l\u00e0m k\u00edn \u0111\u00e1ng tin c\u1eady, r\u00f2 r\u1ec9 nh\u1ecf, tu\u1ed5i th\u1ecd l\u00e2u d\u00e0i, \u00edt hao ph\u00ed \u0111i\u1ec7n n\u0103ng v\u00e0 ph\u1ea1m vi \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c t\u1ed1c \u0111\u1ed9 cao, ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t cao v\u00e0 c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n x\u1eed l\u00fd \u0111\u1eaft ti\u1ec1n, \u0111\u1ed9c h\u1ea1i v\u00e0 c\u00f3 t\u00ednh \u0103n m\u00f2n cao. \u0110\u1ed3ng th\u1eddi, ph\u1edbt c\u01a1 kh\u00ed l\u00e0 m\u1ed9t trong nh\u1eefng m\u1eaft x\u00edch y\u1ebfu nh\u1ea5t c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n\n\n\n

\u0110\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a n\u00f3, ngo\u00e0i vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u1eb7p ma s\u00e1t ph\u00f9 h\u1ee3p v\u00e0 \u0111\u1ea7u ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi \u00e1p su\u1ea5t c\u1ee5 th\u1ec3, vi\u1ec7c l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec \u0111\u00fang c\u00e1ch c\u0169ng c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng.<\/p>\n\n\n\n

Trong b\u00e0i b\u00e1o n\u00e0y, th\u00f4ng qua th\u1ef1c h\u00e0nh b\u1ea3o d\u01b0\u1ee1ng h\u00e0ng ng\u00e0y, c\u00e1c nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra s\u1ef1 c\u1ed1 v\u00e0 r\u00f2 r\u1ec9 ph\u1edbt c\u01a1 kh\u00ed \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch. <\/p>\n\n\n\n

Ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n c\u1ee7a s\u1ef1 c\u1ed1 v\u00e0 r\u00f2 r\u1ec9 ph\u1edbt c\u01a1 kh\u00ed<\/h2>\n\n\n\n

C\u00f3 nhi\u1ec1u lo\u1ea1i v\u00e0 m\u00f4 h\u00ecnh ph\u1edbt c\u01a1 kh\u00ed kh\u00e1c nhau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb h\u00f3a ch\u1ea5t, nh\u01b0ng c\u00f3 n\u0103m \u0111i\u1ec3m r\u00f2 r\u1ec9 ch\u00ednh:<\/p>\n\n\n\n

\u2460 L\u00e0m k\u00edn gi\u1eefa \u1ed1ng b\u1ecdc tr\u1ee5c v\u00e0 tr\u1ee5c;<\/p>\n\n\n\n

\u2461 L\u00e0m k\u00edn gi\u1eefa v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng v\u00e0 \u1ed1ng b\u1ecdc tr\u1ee5c;<\/p>\n\n\n\n

\u2462 L\u00e0m k\u00edn gi\u1eefa c\u00e1c v\u00f2ng \u0111\u1ed9ng v\u00e0 t\u0129nh;<\/p>\n\n\n\n

\u2463 Ni\u00eam phong gi\u1eefa v\u00f2ng \u0111\u1ec7m t\u0129nh v\u00e0 gh\u1ebf \u0111\u1ec7m t\u0129nh;<\/p>\n\n\n\n

\u2464 D\u00e1n con d\u1ea5u gi\u1eefa n\u1eafp cu\u1ed1i v\u00e0 th\u00e2n m\u00e1y b\u01a1m.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

R\u00f2 r\u1ec9 ph\u1edbt c\u01a1 kh\u00ed do m\u00f2n m\u1eb7t cu\u1ed1i c\u1ee7a v\u00f2ng \u0111\u1ed9ng v\u00e0 v\u00f2ng t\u0129nh<\/h3>\n\n\n\n

D\u00f9 l\u00e0 lo\u1ea1i ph\u1edbt c\u01a1 kh\u00ed n\u00e0o th\u00ec \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh l\u00e0 m\u1eb7t l\u00e0m k\u00edn vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c quay, t\u1ee9c l\u00e0 ph\u1edbt d\u1ecdc tr\u1ee5c d\u1ec5 r\u00f2 r\u1ec9 \u0111\u01b0\u1ee3c \u0111\u1ed5i th\u00e0nh ph\u1edbt cu\u1ed1i kh\u00f4ng d\u1ec5 r\u00f2 r\u1ec9. Do \u0111\u00f3, d\u1ea1ng h\u01b0 h\u1ecfng c\u1ee7a ph\u1edbt c\u01a1 kh\u00ed ch\u00ednh l\u00e0 h\u01b0 h\u1ecfng do m\u00f2n gi\u1eefa c\u00e1c v\u00f2ng t\u0129nh v\u00e0 v\u00f2ng \u0111\u1ed9ng. C\u00e1c c\u1eb7p ma s\u00e1t cu\u1ed1i c\u1ee7a v\u00f2ng \u0111\u1ed9ng v\u00e0 v\u00f2ng t\u0129nh ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c n\u00e9n b\u1edfi l\u1ef1c \u0111\u1ea9y c\u1ee7a l\u00f2 xo \u0111\u1ec3 ch\u1ed1ng r\u00f2 r\u1ec9. V\u00f2ng \u0111\u1ed9ng v\u00e0 v\u00f2ng t\u0129nh c\u00e0ng ch\u1eb7t th\u00ec kh\u1ea3 n\u0103ng b\u1ecb r\u00f2 r\u1ec9 c\u00e0ng \u00edt nh\u01b0ng ma s\u00e1t gi\u1eefa ch\u00fang c\u0169ng t\u0103ng l\u00ean. B\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac c\u1ee7a v\u00f2ng \u0111\u1ed9ng v\u00e0 v\u00f2ng t\u0129nh s\u1ebd nhanh ch\u00f3ng b\u1ecb m\u00e0i m\u00f2n d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a ma s\u00e1t l\u1edbn, v\u00e0 cu\u1ed1i c\u00f9ng kh\u00f4ng b\u1ecb r\u00f2 r\u1ec9.<\/p>\n\n\n\n

R\u00f2 r\u1ec9 ph\u1edbt c\u01a1 kh\u00ed do \u0111i\u1ec1u ki\u1ec7n quy tr\u00ecnh kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 l\u1eafp \u0111\u1eb7t sai<\/h3>\n\n\n\n

S\u1ef1 rung \u0111\u1ed9ng g\u00e2y ra b\u1edfi c\u00e1c \u0111i\u1ec1u ki\u1ec7n quy tr\u00ecnh kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 l\u1eafp \u0111\u1eb7t kh\u00f4ng t\u1ed1t, \u0111\u1ed3ng th\u1eddi ng\u1eaft k\u1ebft n\u1ed1i t\u1ee9c th\u1eddi c\u1ee7a thi\u1ebft b\u1ecb tho\u00e1t h\u01a1i v\u00e0 tho\u00e1t h\u01a1i s\u1ebd d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng m\u00e0ng ch\u1ea5t l\u1ecfng gi\u1eefa c\u00e1c v\u00f2ng \u0111\u1ed9ng v\u00e0 t\u0129nh c\u1ee7a ph\u1edbt c\u01a1 kh\u00ed, \u0111i\u1ec1u n\u00e0y s\u1ebd l\u00e0m cho ph\u1edbt c\u01a1 kh\u00ed b\u1ecb \u201ckh\u00f4\u201d trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng b\u00f4i tr\u01a1n. Nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u00f2ng \u0111\u1ec7m s\u1ebd t\u0103ng nhanh, m\u1ed9t s\u1ed1 s\u1ebd ch\u00e1y tr\u1ef1c ti\u1ebfp, m\u1ed9t s\u1ed1 b\u1ecb ngu\u1ed9i m\u1ea1nh khi b\u01a1m tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i l\u00e0m vi\u1ec7c b\u00ecnh th\u01b0\u1eddng, h\u00ecnh th\u00e0nh hi\u1ec7n t\u01b0\u1ee3ng s\u1ed1c nhi\u1ec7t v\u00e0 ph\u00e2n m\u1ea3nh. \u0110i\u1ec1u ki\u1ec7n v\u00e0 ch\u1ea5t l\u1ecfng x\u1ea3 kh\u00f4ng t\u1ed1t c\u0169ng s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng s\u1ed1c nhi\u1ec7t, d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ebft n\u1ee9t xuy\u00ean t\u00e2m trong v\u00f2ng \u0111\u1ec7m v\u00e0 l\u00e0m t\u0103ng s\u1ef1 h\u1ecfng h\u00f3c do m\u00f2n c\u1ee7a c\u00e1c v\u00f2ng \u0111\u1ed9ng v\u00e0 t\u0129nh. \u0110\u1ed3ng th\u1eddi, khi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u00f2ng than ch\u00ec v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 ph\u1ee5c v\u1ee5, tinh th\u1ec3 s\u1ebd k\u1ebft t\u1ee7a tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a v\u00f2ng than ch\u00ec, v\u00e0 qu\u00e1 tr\u00ecnh cacbon h\u00f3a s\u1ebd x\u1ea3y ra g\u1ea7n c\u1eb7p ma s\u00e1t v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n, v\u00e0 c\u00e1c h\u1ea1t s\u1ebd nh\u1eadp v\u00e0o c\u1eb7p ma s\u00e1t \u0111\u1ec3 l\u00e0m v\u00f2ng \u0111\u1ed9ng v\u00e0 v\u00f2ng t\u0129nh b\u1ecb m\u00f2n nhanh ch\u00f3ng.<\/p>\n\n\n\n

L\u1ed7i v\u00f2ng \u0111\u1ec7m c\u1ee7a ph\u1edbt c\u01a1 kh\u00ed c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh d\u1eabn \u0111\u1ebfn r\u00f2 r\u1ec9 ph\u1edbt<\/h3>\n\n\n\n

S\u1ef1 l\u1eafp r\u00e1p c\u1ee7a v\u00f2ng \u0111\u1ec7m c\u1ee7a c\u00e1c v\u00f2ng \u0111\u1ed9ng v\u00e0 t\u0129nh b\u1ecb l\u1ec7ch; b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n c\u1ee7a tr\u1ee5c ho\u1eb7c \u1ed1ng b\u1ecdc kh\u1edbp v\u1edbi v\u00f2ng \u0111\u1ec7m kh\u00f4ng \u0111\u1ee7 ho\u1eb7c k\u00edch th\u01b0\u1edbc kh\u1edbp qu\u00e1 nh\u1ecf; ph\u1ea3n \u1ee9ng v\u1eadt l\u00fd ho\u1eb7c h\u00f3a h\u1ecdc gi\u1eefa v\u00f2ng \u0111\u1ec7m v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0m k\u00edn, \u0103n m\u00f2n, bi\u1ebfn d\u1ea1ng, l\u00e3o h\u00f3a, v.v. c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn r\u00f2 r\u1ec9.<\/p>\n\n\n\n

R\u00f2 r\u1ec9 ph\u1edbt c\u01a1 kh\u00ed do l\u1eafp r\u00e1p kh\u00f4ng \u0111\u00fang c\u00e1ch<\/h3>\n\n\n\n

Tr\u01b0\u1edbc khi l\u1eafp r\u00e1p ph\u1ed1t c\u01a1 kh\u00ed, vi\u1ec7c v\u1ec7 sinh linh ki\u1ec7n ph\u1ed1t c\u01a1 kh\u00ed kh\u00f4ng s\u1ea1ch s\u1ebd, linh ki\u1ec7n b\u1ecb d\u1eadp, x\u01b0\u1edbc; l\u1eafp r\u00e1p kh\u00f4ng \u0111\u00fang v\u1ecb tr\u00ed; c\u1ee5m l\u00f2 xo b\u1ecb l\u1ec7ch, v\u00edt xi\u1ebft kh\u00f4ng ch\u1eb7t; Ph\u1ed1t c\u01a1 kh\u00ed b\u1ecb h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh th\u00e1o r\u1eddi, v.v., \u0111\u00f3 l\u00e0 t\u1ea5t c\u1ea3 nh\u1eefng l\u00fd do khi\u1ebfn ph\u1ed1t c\u01a1 kh\u00ed b\u1ecb h\u1ecfng s\u1edbm.<\/p>\n\n\n\n

R\u00f2 r\u1ec9 ph\u1edbt c\u01a1 kh\u00ed do l\u1ef1a ch\u1ecdn v\u00e0 thi\u1ebft k\u1ebf ph\u1edbt c\u01a1 kh\u00ed kh\u00f4ng \u0111\u00fang c\u00e1ch<\/h3>\n\n\n\n

Do s\u1ef1 \u0111a d\u1ea1ng c\u1ee7a \u0111\u1eb7c t\u00ednh m\u00f4i tr\u01b0\u1eddng qu\u00e1 tr\u00ecnh trong nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t, vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf ph\u1edbt c\u01a1 kh\u00ed kh\u00f4ng ph\u00f9 h\u1ee3p, t\u1ef7 l\u1ec7 \u00e1p su\u1ea5t nh\u1ecf v\u00e0 l\u1edbn c\u1ee7a m\u1eb7t \u0111\u1ea7u ph\u1edbt ho\u1eb7c \u0111\u1ed9 co ng\u00f3t l\u1edbn c\u1ee7a v\u1eadt li\u1ec7u l\u00e0m k\u00edn, r\u1ea5t d\u1ec5 g\u00e2y ra h\u1ecfng h\u00f3c v\u00e0 r\u00f2 r\u1ec9 ph\u1edbt c\u01a1 kh\u00ed.<\/p>\n\n\n\n

C\u00e1c gi\u1ea3i ph\u00e1p<\/h2>\n\n\n\n

Theo ph\u00e2n t\u00edch tr\u00ean, c\u00e1c bi\u1ec7n ph\u00e1p v\u00e0 ph\u01b0\u01a1ng ph\u00e1p b\u1ea3o d\u01b0\u1ee1ng sau \u0111\u00e2y c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a ph\u1edbt c\u01a1 kh\u00ed.<\/p>\n\n\n\n

\u0110i\u1ec1u ch\u1ec9nh n\u00e9n l\u00f2 xo<\/h3>\n\n\n\n

\u0110i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng n\u00e9n c\u1ee7a l\u00f2 xo l\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t ri\u00eang c\u1ee7a m\u1eb7t cu\u1ed1i c\u1ee7a ph\u1edbt c\u01a1 kh\u00ed, c\u00f3 li\u00ean quan \u0111\u1ebfn c\u00e1c th\u00f4ng s\u1ed1 quan tr\u1ecdng v\u1ec1 hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a ph\u1edbt, c\u0169ng nh\u01b0 ki\u1ec3u k\u1ebft c\u1ea5u c\u1ee7a ph\u1edbt, k\u00edch th\u01b0\u1edbc l\u00f2 xo v\u00e0 \u00e1p su\u1ea5t trung b\u00ecnh. N\u1ebfu \u00e1p su\u1ea5t ri\u00eang c\u1ee7a m\u1eb7t cu\u1ed1i qu\u00e1 l\u1edbn, c\u1eb7p ma s\u00e1t s\u1ebd b\u1ecb h\u1ecfng; n\u1ebfu \u00e1p su\u1ea5t ri\u00eang qu\u00e1 nh\u1ecf s\u1ebd d\u1ec5 b\u1ecb r\u00f2 r\u1ec9 n\u00ean nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng \u0111\u01b0a ra d\u1ea3i ph\u00f9 h\u1ee3p, th\u01b0\u1eddng l\u00e0 3-6kg \/ cm2. Chi\u1ec1u d\u00e0i t\u1ef1 do c\u1ee7a l\u00f2 xo a, \u0111\u1ed9 c\u1ee9ng c\u1ee7a l\u00f2 xo K (t\u1ea3i tr\u1ecdng ph\u1ea3i ch\u1ecbu khi t\u1ea1o l\u1ef1c n\u00e9n \u0111\u01a1n v\u1ecb) v\u00e0 \u00e1p su\u1ea5t ri\u00eang quy \u0111\u1ecbnh P l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng s\u1ed1 do nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u01b0a ra. Khi k\u00edch th\u01b0\u1edbc b\u1ecb n\u00e9n l\u00e0 B th\u00ec p \/ (ab) = k, v\u00e0 B = AP \/ K, l\u00e0 k\u00edch th\u01b0\u1edbc b\u1ecb n\u00e9n khi l\u1eafp \u0111\u1eb7t l\u00f2 xo. N\u1ebfu k\u00edch th\u01b0\u1edbc c\u1ee7a l\u00f2 xo sau khi l\u1eafp \u0111\u1eb7t qu\u00e1 l\u1edbn, c\u00f3 th\u1ec3 t\u0103ng \u0111\u1ed9 d\u00e0y c\u1ee7a \u0111\u1ec7m \u0111i\u1ec1u ch\u1ec9nh gi\u1eefa gh\u1ebf l\u00f2 xo v\u00e0 l\u00f2 xo. N\u1ebfu k\u00edch th\u01b0\u1edbc qu\u00e1 nh\u1ecf, \u0111\u1ed9 d\u00e0y c\u1ee7a \u0111\u1ec7m \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m b\u1edbt. \u0110\u1ed9 d\u00e0y c\u1ee7a \u0111\u1ec7m \u0111i\u1ec1u ch\u1ec9nh ph\u1ea3i \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng micromet.<\/p>\n\n\n\n

\u0110\u1ed9 ch\u1eb7t c\u1ee7a v\u00f2ng \u0111\u1ec7m v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng<\/h3>\n\n\n\n

S\u1ebd c\u00f3 h\u1ea1i v\u00e0 v\u00f4 \u00edch n\u1ebfu v\u00f2ng \u0111\u1ec7m c\u1ee7a v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng qu\u00e1 ch\u1eb7t. \u0110\u1ea7u ti\u00ean, n\u00f3 s\u1ebd l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam s\u1ef1 m\u00e0i m\u00f2n gi\u1eefa v\u00f2ng \u0111\u1ec7m v\u00e0 \u1ed1ng b\u1ecdc tr\u1ee5c v\u00e0 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 s\u1edbm; th\u1ee9 hai, n\u00f3 s\u1ebd l\u00e0m t\u0103ng l\u1ef1c c\u1ea3n c\u1ee7a vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh tr\u1ee5c v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng, kh\u00f4ng th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh k\u1ecbp th\u1eddi khi \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c th\u01b0\u1eddng xuy\u00ean thay \u0111\u1ed5i; th\u1ee9 ba, l\u00f2 xo s\u1ebd d\u1ec5 b\u1ecb h\u1ecfng do m\u1ecfi qu\u00e1 m\u1ee9c; th\u1ee9 t\u01b0, n\u00f3 s\u1ebd l\u00e0m bi\u1ebfn d\u1ea1ng v\u00f2ng \u0111\u1ec7m c\u1ee7a v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 l\u00e0m k\u00edn. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u1ea5t n\u1ed5i c\u1ee7a v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng, \u0111\u01b0\u1eddng k\u00ednh trong c\u1ee7a n\u00f3 l\u1edbn h\u01a1n \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c t\u1eeb 0,5-1mm, d\u00f9ng \u0111\u1ec3 b\u00f9 rung v\u00e0 l\u1ec7ch tr\u1ee5c, nh\u01b0ng khe h\u1edf kh\u00f4ng \u0111\u01b0\u1ee3c qu\u00e1 l\u1edbn, n\u1ebfu kh\u00f4ng s\u1ebd l\u00e0m k\u00edn v\u00f2ng c\u1ee7a v\u00f2ng chuy\u1ec3n \u0111\u1ed9ng s\u1ebd b\u1ecb k\u1eb9p v\u00e0o v\u00e0 t\u00ednh n\u0103ng c\u01a1 h\u1ecdc c\u1ee7a con d\u1ea5u c\u01a1 h\u1ecdc s\u1ebd b\u1ecb h\u1ecfng. \u0110\u1ed9 k\u00edn c\u1ee7a v\u00f2ng \u0111\u1ec7m ph\u1ea3i ch\u1ecbu \u00e1p l\u1ef1c c\u1ee7a m\u1ed9t tay sau khi b\u00f4i ch\u1ea5t b\u00f4i tr\u01a1n.<\/p>\n\n\n\n

\u0110\u1ed9 ch\u1eb7t c\u1ee7a v\u00f2ng \u0111\u1ec7m v\u00f2ng t\u0129nh<\/h3>\n\n\n\n

V\u00f2ng \u0111\u1ec7m t\u0129nh v\u1ec1 c\u01a1 b\u1ea3n \u1edf tr\u1ea1ng th\u00e1i t\u0129nh, v\u00e0 hi\u1ec7u qu\u1ea3 l\u00e0m k\u00edn t\u1ed1t h\u01a1n n\u1ebfu n\u00f3 t\u01b0\u01a1ng \u0111\u1ed1i ch\u1eb7t ch\u1ebd, nh\u01b0ng qu\u00e1 ch\u1eb7t s\u1ebd d\u1eabn \u0111\u1ebfn: th\u1ee9 nh\u1ea5t, v\u00f2ng \u0111\u1ec7m t\u0129nh s\u1ebd b\u1ecb bi\u1ebfn d\u1ea1ng qu\u00e1 m\u1ee9c, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 l\u00e0m k\u00edn; th\u1ee9 hai, v\u1eadt li\u1ec7u v\u00f2ng t\u0129nh ch\u1ee7 y\u1ebfu l\u00e0 graphit, n\u00f3i chung l\u00e0 gi\u00f2n, v\u00e0 \u1ee9ng su\u1ea5t qu\u00e1 m\u1ee9c s\u1ebd d\u1ec5 d\u1eabn \u0111\u1ebfn ph\u00e2n m\u1ea3nh; th\u1ee9 ba, kh\u00f3 l\u1eafp \u0111\u1eb7t v\u00e0 th\u00e1o r\u1eddi, s\u1ebd d\u1ec5 l\u00e0m h\u1ecfng v\u00f2ng t\u0129nh. Do \u0111\u00f3, \u0111\u01b0\u1eddng k\u00ednh trong c\u1ee7a v\u00f2ng \u0111\u1ec7m th\u01b0\u1eddng l\u1edbn h\u01a1n \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c t\u1eeb 1-2mm, v\u00e0 \u0111\u1ed9 k\u00edn c\u1ee7a v\u00f2ng \u0111\u1ec7m ch\u1ecbu \u00e1p l\u1ef1c c\u1ee7a c\u1ea3 hai tay sau khi b\u00f4i ch\u1ea5t b\u00f4i tr\u01a1n. N\u1ebfu \u1ea5n nh\u1eb9 tay v\u00e0o \u0111\u01b0\u1ee3c th\u00ec th\u1ea5y l\u1ecfng qu\u00e1; n\u1ebfu kh\u00f4ng th\u1ec3 \u1ea5n m\u1ea1nh tay v\u00e0o, n\u00f3 s\u1ebd qu\u00e1 ch\u1eb7t.<\/p>\n\n\n\n

Thay th\u1ebf con d\u1ea5u c\u0169 v\u00e0 m\u1edbi<\/h3>\n\n\n\n

N\u00f3i m\u1ed9t c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i, hi\u1ec7u qu\u1ea3 c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng ph\u1edbt c\u01a1 kh\u00ed m\u1edbi t\u1ed1t h\u01a1n ph\u1edbt c\u0169, nh\u01b0ng khi ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u1ee7a ph\u1edbt c\u01a1 kh\u00ed m\u1edbi kh\u00f4ng \u0111\u00fang, sai s\u1ed1 k\u00edch th\u01b0\u1edbc kh\u1edbp n\u1ed1i s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 l\u00e0m k\u00edn. Trong m\u00f4i tr\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng polyme h\u00f3a v\u00e0 th\u1ea5m s\u00e2u, n\u1ebfu v\u00f2ng \u0111\u1ec7m t\u0129nh kh\u00f4ng b\u1ecb m\u00e0i m\u00f2n qu\u00e1 m\u1ee9c (khi b\u1ec1 m\u1eb7t l\u00e0m k\u00edn b\u1ecb n\u1ee9t, r\u01a1i, tr\u1ea7y x\u01b0\u1edbc, v\u1ebft r\u1ed7, \u0111\u00e8n flash v\u00e0 m\u00f2n l\u1ec7ch t\u00e2m, v\u00e0 c\u00e1c \u0111i\u1ec3m x\u01b0\u1edbc v\u00e0 v\u1ebft r\u1ed7 xuy\u00ean qua to\u00e0n b\u1ed9 m\u1eb7t l\u00e0m k\u00edn, th\u00ec \u0111\u00f3 l\u00e0 g\u1ecdi l\u00e0 m\u00f2n qu\u00e1 m\u1ee9c), t\u1ed1t h\u01a1n l\u00e0 kh\u00f4ng n\u00ean thay th\u1ebf n\u00f3. B\u1edfi v\u00ec v\u00f2ng t\u0129nh \u1edf tr\u1ea1ng th\u00e1i t\u0129nh trong m\u1ed9t th\u1eddi gian d\u00e0i trong gh\u1ebf v\u00f2ng t\u0129nh, t\u1ed5ng th\u1ec3 polyme v\u00e0 t\u1ea1p ch\u1ea5t \u0111\u01b0\u1ee3c l\u1eafng \u0111\u1ecdng, \u0111\u00f3ng vai tr\u00f2 l\u00e0m k\u00edn t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Xem x\u00e9t l\u1ea1i<\/h3>\n\n\n\n

M\u1ed9t khi ph\u1edbt c\u01a1 kh\u00ed b\u1ecb r\u00f2 r\u1ec9, \u0111\u1eebng v\u1ed9i th\u00e1o d\u1ee1 v\u00e0 s\u1eeda ch\u1eefa n\u00f3. \u0110\u00f4i khi con d\u1ea5u c\u00f3 th\u1ec3 kh\u00f4ng b\u1ecb h\u1ecfng. Ch\u1ec9 \u0111i\u1ec1u ch\u1ec9nh t\u00ecnh tr\u1ea1ng l\u00e0m vi\u1ec7c ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh con d\u1ea5u h\u1ee3p l\u00fd m\u1edbi c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf s\u1ef1 r\u00f2 r\u1ec9. V\u00ed d\u1ee5, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 n\u00e9n c\u1ee7a l\u00f2 xo, lo\u1ea1i b\u1ecf s\u1ef1 rung \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb ch\u1ea1y, lo\u1ea1i b\u1ecf l\u1edbp c\u1eb7n l\u00e0m cho l\u00f2 xo m\u1ea5t t\u00ednh \u0111\u00e0n h\u1ed3i v\u00e0 l\u1edbp c\u1eb7n tr\u00ean c\u00e1c c\u1eb7p ma s\u00e1t c\u1ee7a v\u00f2ng \u0111\u1ed9ng v\u00e0 v\u00f2ng t\u0129nh. C\u00f3 nh\u01b0 v\u1eady m\u1edbi tr\u00e1nh \u0111\u01b0\u1ee3c l\u00e3ng ph\u00ed m\u00e0 c\u00f2n gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c c\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf. \u0110\u1ed3ng th\u1eddi, n\u00f3 c\u00f3 th\u1ec3 x\u00e1c minh kh\u1ea3 n\u0103ng ph\u00e1n \u0111o\u00e1n l\u1ed7i c\u1ee7a n\u00f3 v\u00e0 t\u00edch l\u0169y kinh nghi\u1ec7m b\u1ea3o tr\u00ec \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng b\u1ea3o tr\u00ec.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Mechanical seal is a device to prevent fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis under the action of fluid pressure, the elastic force (or magnetic force) of compensation mechanism and the cooperation of auxiliary seal to keep sticking and relatively sliding. The mechanical seal…<\/p>","protected":false},"author":2,"featured_media":19842,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2020\/05\/\u56fe\u72472-10.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/19841"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=19841"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/19841\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/19842"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=19841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=19841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=19841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}