{"id":16232,"date":"2022-08-24T02:45:01","date_gmt":"2022-08-24T02:45:01","guid":{"rendered":"https:\/\/ixox.net\/?p=16232"},"modified":"2024-07-18T16:28:30","modified_gmt":"2024-07-18T09:28:30","slug":"phuong-phap-danh-bong-khuon","status":"publish","type":"post","link":"https:\/\/ixox.net\/phuong-phap-danh-bong-khuon\/","title":{"rendered":"6 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng khu\u00f4n & nh\u1eefng l\u01b0u \u00fd"},"content":{"rendered":"

\u0110\u00e1nh b\u00f3ng khu\u00f4n kh\u00f4ng ch\u1ec9 gi\u00fap n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, m\u00e0 c\u00f2n t\u0103ng t\u00ednh th\u1ea9m m\u1ef9, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, gi\u1ea3m chu k\u1ef3 \u00e9p phun,… V\u00ec v\u1eady, \u0111\u00e1nh b\u00f3ng l\u00e0 m\u1ed9t quy tr\u00ecnh r\u1ea5t quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t khu\u00f4n nh\u1ef1a.<\/span><\/p>\n

B\u00e0i vi\u1ebft n\u00e0y s\u1ebd mang \u0111\u1ebfn c\u00e1c b\u1ea1n 6 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng khu\u00f4n, nh\u1eefng y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 nh\u1eefng l\u01b0u \u00fd trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng khu\u00f4n n\u00e0y.<\/span><\/p>\n

$\"6$ <\/p>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng khu\u00f4n<\/b><\/span><\/h2>\n
Hi\u1ec7n nay, c\u00f3 6 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng khu\u00f4n nh\u1ef1a ph\u1ed5 bi\u1ebfn nh\u01b0 sau:<\/span><\/p>\n
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\u0110\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
\u0110\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn th\u01b0\u1eddng xuy\u00ean nh\u1ea5t, b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nh\u1eefng d\u1ee5ng c\u1ee5 c\u00f3 kh\u1ea3 n\u0103ng c\u1eaft ho\u1eb7c l\u00e0m bi\u1ebfn d\u1ea1ng d\u1ebbo b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u nh\u01b0 \u0111\u00e1 m\u00e0i d\u1ea7u, \u0111\u00e1 ceramic, n\u1ec9 \u0111\u00e1nh b\u00f3ng, gi\u1ea5y nh\u00e1m, d\u1ee5ng c\u1ee5 m\u00e0i c\u1eaft kim c\u01b0\u01a1ng,…\u00a0 qua \u0111\u00f3 lo\u1ea1i b\u1ecf nh\u1eefng ph\u1ea7n l\u1ed7i l\u00f5m tr\u00ean b\u1ec1 m\u1eb7t \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c b\u1ec1 m\u1eb7t nh\u1eb5n b\u00f3ng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ch\u1ee7 y\u1ebfu b\u1eb1ng th\u1ee7 c\u00f4ng.<\/span><\/p>\n
\u0110\u1ed1i v\u1edbi nh\u1eefng b\u1ec1 m\u1eb7t \u0111\u1eb7c bi\u1ec7t nh\u01b0 b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9 ph\u1eadn c\u00f3 c\u01a1 ch\u1ebf xoay, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 nh\u01b0 b\u00e0n xoay. \u0110\u1ed1i v\u1edbi tr\u01b0\u1eddng h\u1ee3p y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t cao, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng si\u00eau tinh. \u0110\u00e1nh b\u00f3ng si\u00eau ch\u00ednh x\u00e1c c\u1ea7n s\u1eed d\u1ee5ng lo\u1ea1i c\u00f4ng c\u1ee5 \u0111\u1eb7c bi\u1ec7t.<\/span><\/p>\n
\u0110\u00e1nh b\u00f3ng tinh v\u00e0 \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n v\u1edbi c\u00e1c d\u1ee5ng c\u1ee5 m\u00e0i chuy\u00ean d\u1ee5ng nh\u01b0 m\u00e1y m\u00e0i kh\u00ed\/m\u00e0i \u0111i\u1ec7n l\u1eafp \u0111\u1ea7u n\u1ec9 k\u1ebft h\u1ee3p b\u1ed9t \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng ma s\u00e1t v\u1edbi b\u1ec1 m\u1eb7t l\u00f2ng khu\u00f4n \u1edf t\u1ed1c \u0111\u1ed9 quay cao. K\u1ef9 thu\u1eadt n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t Ra 0.008\u03bcm.<\/span><\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc kh\u00f4ng t\u1ed1n nhi\u1ec1u chi ph\u00ed \u0111\u1ea7u t\u01b0 v\u1ec1 d\u1ee5ng c\u1ee5, hi\u1ec7u qu\u1ea3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u00e0 t\u1ed1t, ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u c\u1ea5u tr\u00fac khu\u00f4n kh\u00e1c nhau, nh\u01b0ng do vi\u1ec7c \u0111\u00e1nh b\u00f3ng th\u1ee7 c\u00f4ng n\u00ean th\u01b0\u1eddng t\u1ed1n nhi\u1ec1u th\u1eddi gian, c\u0169ng \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi th\u1ee3 c\u1ea7n ph\u1ea3i c\u00f3 tay ngh\u1ec1 cao, c\u1ea7n th\u00eam nh\u00e2n c\u00f4ng v\u00e0 n\u0103ng su\u1ea5t kh\u00f4ng cao.<\/span><\/p>\n
$\"6$ <\/p>\n
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\u0110\u00e1nh b\u00f3ng b\u1eb1ng h\u00f3a ch\u1ea5t<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
\u0110\u00e1nh b\u00f3ng b\u1eb1ng h\u00f3a ch\u1ea5t l\u00e0 qu\u00e1 tr\u00ecnh m\u00e0 trong \u0111\u00f3 b\u1ec1 m\u1eb7t l\u1ed3i l\u00ean \u0111\u01b0\u1ee3c h\u00f2a tan v\u00e0 l\u00e0m ph\u1eb3ng trong m\u00f4i tr\u01b0\u1eddng h\u00f3a h\u1ecdc, qua \u0111\u00f3 c\u00f3 \u0111\u01b0\u1ee3c b\u1ec1 m\u1eb7t nh\u1eb5n.<\/span><\/p>\n
\u01afu \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 kh\u00f4ng c\u1ea7n nh\u1eefng thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 ph\u1ee9c t\u1ea1p, c\u00f3 th\u1ec3 \u0111\u00e1nh b\u00f3ng c\u00e1c ph\u00f4i khu\u00f4n c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, \u0111\u00e1nh b\u00f3ng \u0111\u1ed3ng lo\u1ea1t nhi\u1ec1u khu\u00f4n c\u00f9ng l\u00fac, hi\u1ec7u qu\u1ea3 cao.\u00a0<\/span><\/p>\n
V\u1ea5n \u0111\u1ec1 quan tr\u1ecdng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng n\u00e0y l\u00e0 chu\u1ea9n b\u1ecb dung d\u1ecbch \u0111\u00e1nh b\u00f3ng. \u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch \u0111\u00e1nh b\u00f3ng h\u00f3a h\u1ecdc th\u01b0\u1eddng l\u00e0 kho\u1ea3ng 10\u03bcm.\u00a0<\/span><\/p>\n
Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng b\u1eb1ng h\u00f3a ch\u1ea5t l\u00e0 c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m cho ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n, \u0111\u1ed3ng th\u1eddi, ph\u1ea3i l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i h\u00f3a ch\u1ea5t, n\u1ebfu kh\u00f4ng c\u00f3 th\u1ec3 khi\u1ebfn h\u1ecfng ph\u00f4i m\u00e0 r\u1ea5t kh\u00f3 s\u1eeda ch\u1eefa.<\/span><\/p>\n
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\u0110\u00e1nh b\u00f3ng \u0111i\u1ec7n ph\u00e2n<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
Nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n c\u1ee7a \u0111\u00e1nh b\u00f3ng b\u1eb1ng \u0111i\u1ec7n ph\u00e2n c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111\u00e1nh b\u00f3ng b\u1eb1ng h\u00f3a ch\u1ea5t, b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c l\u00e0m b\u00f3ng nh\u1eb5n b\u1eb1ng c\u00e1ch h\u00f2a tan c\u00e1c ph\u1ea7n l\u1ed3i tr\u00ean b\u1ec1 m\u1eb7t khu\u00f4n m\u1ed9t c\u00e1ch c\u00f3 ch\u1ecdn l\u1ecdc.\u00a0<\/span><\/p>\n
So v\u1edbi \u0111\u00e1nh b\u00f3ng h\u00f3a h\u1ecdc th\u00ec \u0111\u00e1nh b\u00f3ng \u0111i\u1ec7n ph\u00e2n hi\u1ec7u qu\u1ea3 t\u1ed1t h\u01a1n v\u00ec n\u00f3 c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf \u1ea3nh h\u01b0\u1edfng c\u1ee7a ph\u1ea3n \u1ee9ng catot.<\/span><\/p>\n
Qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng \u0111i\u1ec7n ph\u00e2n \u0111\u01b0\u1ee3c chia th\u00e0nh hai b\u01b0\u1edbc:<\/span><\/p>\n
(1) \u0110\u00e1nh b\u00f3ng th\u00f4:<\/em> B\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c h\u00f2a tan khu\u1ebfch t\u00e1n sang v\u1eadt li\u1ec7u \u0111i\u1ec7n ph\u00e2n, \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u gi\u1ea3m, Ra > 1\u03bcm.<\/span><\/p>\n
(2) \u0110\u00e1nh b\u00f3ng tinh:<\/em> Ph\u00e2n c\u1ef1c anot, c\u1ea3i thi\u1ec7n \u0111\u1ed9 s\u00e1ng b\u00f3ng b\u1ec1 m\u1eb7t, Ra < 1\u03bcm.<\/span><\/p>\n
$\"6$ <\/p>\n
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\u0110\u00e1nh b\u00f3ng b\u1eb1ng si\u00eau \u00e2m<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
\u0110\u00e1nh b\u00f3ng si\u00eau \u00e2m l\u00e0 ph\u01b0\u01a1ng ph\u00e1p d\u1ef1a v\u00e0o rung \u0111\u1ed9ng t\u1ea7n s\u1ed1 cao \u0111\u1ec3 h\u1ed7n h\u1ee3p m\u00e0i c\u1ecd x\u00e1t li\u00ean t\u1ee5c v\u1edbi b\u1ec1 m\u1eb7t khu\u00f4n, qua \u0111\u00f3 gi\u00fap b\u1ec1 m\u1eb7t \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u00f3ng \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n, r\u1ea5t c\u00f3 l\u1ee3i cho vi\u1ec7c l\u00e0m s\u00e1ng b\u1ec1 m\u1eb7t khu\u00f4n.<\/span><\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch \u0111\u1eb7t khu\u00f4n v\u00e0 h\u1ed7n h\u1ee3p m\u00e0i trong c\u00f9ng tr\u01b0\u1eddng si\u00eau \u00e2m. Do t\u00e1c \u0111\u1ed9ng l\u1ef1c l\u00e0 r\u1ea5t nh\u1ecf n\u00ean h\u1ea7u nh\u01b0 kh\u00f4ng g\u00e2y ra bi\u1ebfn d\u1ea1ng ph\u00f4i, tuy nhi\u00ean do \u0111\u1ed9 ph\u1ee9c t\u1ea1p n\u00ean vi\u1ec7c ch\u1ebf t\u1ea1o v\u00e0 l\u1eafp \u0111\u1eb7t d\u1ee5ng c\u1ee5 l\u1ea1i g\u1eb7p nhi\u1ec1u kh\u00f3 kh\u0103n.<\/span><\/p>\n
X\u1eed l\u00fd b\u1ec1 m\u1eb7t khu\u00f4n b\u1eb1ng si\u00eau \u00e2m c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc ho\u1eb7c \u0111i\u1ec7n h\u00f3a. Tr\u00ean c\u01a1 s\u1edf \u0103n m\u00f2n v\u00e0 \u0111i\u1ec7n ph\u00e2n dung d\u1ecbch, ng\u01b0\u1eddi ta \u00e1p d\u1ee5ng rung \u0111\u1ed9ng si\u00eau \u00e2m \u0111\u1ec3 khu\u1ea5y dung d\u1ecbch h\u00f2a tan tr\u00ean b\u1ec1 m\u1eb7t ph\u00f4i, \u0111\u1ed3ng nh\u1ea5t \u0103n m\u00f2n ho\u1eb7c \u0111i\u00ean ph\u00e2n g\u1ea7n b\u1ec1 m\u1eb7t khu\u00f4n.<\/span><\/p>\n
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\u0110\u00e1nh b\u00f3ng b\u1eb1ng d\u00f2ng ch\u1ea5t l\u1ecfng\u00a0<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
\u0110\u00e1nh b\u00f3ng b\u1eb1ng d\u00f2ng ch\u1ea5t l\u1ecfng d\u1ef1a v\u00e0o s\u1ef1 m\u00e0i m\u00f2n c\u1ee7a d\u00f2ng ch\u1ea3y t\u1ed1c \u0111\u1ed9 cao c\u1ee7a ch\u1ea5t l\u1ecfng c\u00f3 ch\u1ee9a c\u00e1c h\u1ea1t m\u00e0i ch\u1ea3y tr\u00ean b\u1ec1 m\u1eb7t khu\u00f4n nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch \u0111\u00e1nh b\u00f3ng.<\/span><\/p>\n
C\u00f3 3 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng b\u1eb1ng d\u00f2ng ch\u1ea5t l\u1ecfng ph\u1ed5 bi\u1ebfn l\u00e0:<\/span><\/p>\n
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Phun h\u1ee3p ch\u1ea5t m\u00e0i<\/span><\/em><\/li>\n
Phun ch\u1ea5t l\u1ecfng<\/span><\/em><\/li>\n
M\u00e0i th\u1ee7y \u0111\u1ed9ng l\u1ef1c<\/span><\/em><\/li>\n<\/ul>\n
Qu\u00e1 tr\u00ecnh m\u00e0i th\u1ee7y \u0111\u1ed9ng l\u1ef1c \u0111\u01b0\u1ee3c d\u1eabn \u0111\u1ed9ng b\u1edfi \u00e1p su\u1ea5t th\u1ee7y l\u1ef1c, do \u0111\u00f3 ch\u1ea5t l\u1ecfng mang theo c\u00e1c h\u1ea1t m\u00e0i ch\u1ea3y qua b\u1ec1 m\u1eb7t khu\u00f4n v\u1edbi t\u1ed1c \u0111\u1ed9 cao.<\/span><\/p>\n
Dung d\u1ecbch m\u00e0i m\u00f2n ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng c\u00e1c h\u1ee3p ch\u1ea5t \u0111\u1eb7c bi\u1ec7t (c\u00e1c ch\u1ea5t gi\u1ed1ng polyme) d\u1ec5 tr\u00f4i, \u00edt b\u00e1m d\u00ednh. B\u1ed9t cacbua silic c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t m\u00e0i m\u00f2n.<\/span><\/p>\n
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\u0110\u00e1nh b\u00f3ng t\u1eeb t\u00ednh<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
\u0110\u00e1nh b\u00f3ng t\u1eeb t\u00ednh l\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng c\u00e1c h\u1ea1t m\u00e0i c\u00f3 t\u1eeb t\u00ednh \u0111\u1ec3 t\u1ea1o th\u00e0nh ch\u1ed5i m\u00e0i d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a t\u1eeb t\u00ednh, di chuy\u1ec3n tr\u00ean b\u1ec1 m\u1eb7t khu\u00f4n \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng khu\u00f4n.<\/span><\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 hi\u1ec7u su\u1ea5t x\u1eed l\u00fd cao, ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t, d\u1ec5 d\u00e0ng ki\u1ec3m so\u00e1t. V\u1edbi ch\u1ea5t m\u00e0i m\u00f2n th\u00edch h\u1ee3p, \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 \u0111\u1ea1t Ra 0.1\u03bcm.<\/span><\/p>\n
$\"6$ <\/p>\n
Quy tr\u00ecnh c\u01a1 b\u1ea3n \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc<\/b><\/span><\/h2>\n
\u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 \u0111\u00e1nh b\u00f3ng \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111i\u1ec1u quan tr\u1ecdng nh\u1ea5t l\u00e0 ph\u1ea3i c\u00f3 c\u00e1c thi\u1ebft b\u1ecb, d\u1ee5ng c\u1ee5 v\u00e0 ph\u1ee5 ki\u1ec7n \u0111\u00e1nh b\u00f3ng ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 \u0111\u00e1 m\u00e0i, gi\u1ea5y nh\u00e1m, b\u1ed9t m\u00e0i kim c\u01b0\u01a1ng.<\/span><\/p>\n
Vi\u1ec7c l\u1ef1a ch\u1ecdn quy tr\u00ecnh \u0111\u00e1nh b\u00f3ng ph\u1ee5 thu\u1ed9c v\u00e0o t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t sau qu\u00e1 tr\u00ecnh x\u1eed l\u00fd tr\u01b0\u1edbc \u0111\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 gia c\u00f4ng phay, xung \u0111i\u1ec7n EDM, m\u00e0i,…<\/span><\/p>\n
Quy tr\u00ecnh chung c\u1ee7a \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc g\u1ed3m 3 b\u01b0\u1edbc nh\u01b0 sau:<\/span><\/p>\n
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M\u00e0i th\u00f4<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
Sau khi phay, ti\u1ec7n, EDM hay c\u00e1c qu\u00e1 tr\u00ecnh x\u1eed l\u00fd kh\u00e1c, b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng b\u1eb1ng m\u00e1y m\u00e0i xoay v\u1edbi t\u1ed1c \u0111\u1ed9 kho\u1ea3ng 35000 \u0111\u1ebfn 40000 v\u00f2ng\/ph\u00fat. \u0110\u1ec3 tr\u00e1nh tia l\u1eeda \u0111i\u1ec7n sinh ra trong qu\u00e1 tr\u00ecnh m\u00e0i, th\u01b0\u1eddng d\u00f9ng b\u00e1nh xe m\u00e0i v\u1edbi \u0111\u01b0\u1eddng k\u00ednh 3mm v\u00e0 WA #400.<\/span><\/p>\n
Ti\u1ebfp theo l\u00e0 qu\u00e1 tr\u00ecnh m\u00e0i th\u1ee7 c\u00f4ng b\u1eb1ng \u0111\u00e1 m\u00e0i d\u1ea7u c\u00f9ng v\u1edbi ch\u1ea5t b\u00f4i tr\u01a1n ho\u1eb7c ch\u1ea5t l\u00e0m m\u00e1t \u0111\u1ec3 l\u00e0m m\u1edd c\u00e1c v\u1ebft x\u01b0\u1edbc. Th\u1ee9 t\u1ef1 chung l\u00e0 #180 \u0111\u1ebfn\u00a0 #240 \u0111\u1ebfn\u00a0 #320 \u0111\u1ebfn\u00a0 #400 \u0111\u1ebfn #600 \u0111\u1ebfn #800 \u0111\u1ebfn #1000. Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t khu\u00f4n ch\u1ecdn b\u1eaft \u0111\u1ea7u v\u1edbi #400 \u0111\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian.<\/span><\/p>\n
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M\u00e0i tinh<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
\u0110\u00e1nh b\u00f3ng tinh ch\u1ee7 y\u1ebfu d\u00f9ng gi\u1ea5y nh\u00e1m v\u00e0 d\u1ea7u h\u1ecfa, \u0111i\u1ec1u n\u00e0y s\u1ebd gi\u00fap l\u00e0m m\u1ecbn b\u1ec1 m\u1eb7t ph\u00f4i tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh \u0111\u00e1nh b\u00f3ng. Gi\u1ea5y nh\u00e1m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u1ea7n l\u01b0\u1ee3t l\u00e0 <\/span>#400 – #600 – #800 – #1000 – #1200 – #1500.\u00a0<\/span><\/span><\/p>\n
Tr\u00ean th\u1ef1c t\u1ebf, gi\u1ea5y nh\u00e1m #1500 ch\u1ec9 ph\u00f9 h\u1ee3p v\u1edbi th\u00e9p c\u1ee9ng tr\u00ean 52 HRC, kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi th\u00e9p pre-hardened v\u00ec c\u00f3 th\u1ec3 g\u00e2y h\u1ecfng b\u1ec1 m\u1eb7t ph\u00f4i th\u00e9p.<\/span><\/p>\n
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\u0110\u00e1nh b\u00f3ng<\/b><\/span><\/h3>\n<\/li>\n<\/ol>\n
B\u1ed9t \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu trong giai \u0111o\u1ea1n cu\u1ed1i n\u00e0y. C\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng kh\u00e1c nhau t\u00f9y v\u00e0o h\u00ecnh d\u1ea1ng khu\u00f4n.<\/span><\/p>\n
N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng n\u1ec9 \u0111\u00e1nh b\u00f3ng \u0111\u1ec3 ch\u00e0 \u0111\u1ec1u b\u1ed9t m\u00e0i kim c\u01b0\u01a1ng l\u00ean b\u1ec1 m\u1eb7t ph\u00f4i th\u00ec tr\u00ecnh t\u1ef1 m\u00e0i th\u00f4ng th\u01b0\u1eddng mang \u0111\u1ebfn hi\u1ec7u qu\u1ea3 cao l\u00e0 9\u03bcm (#1800) ~ 6\u03bcm (#3000) ~ 3\u03bcm (#8000). N\u1ec9 \u0111\u00e1nh b\u00f3ng v\u00e0 b\u1ed9t nh\u00e3o kim c\u01b0\u01a1ng 9\u03bcm c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c v\u1ebft x\u01b0\u1edbc nh\u1ecf b\u1eb1ng s\u1ee3i t\u00f3c do gi\u1ea5y nh\u00e1m #1200 v\u00e0 #1500 \u0111\u1ec3 l\u1ea1i.<\/span><\/p>\n
Sau \u0111\u00f3, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t t\u1ed1t h\u01a1n n\u1eefa, \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 g\u1ea7n nh\u01b0 g\u01b0\u01a1ng, n\u1ec9 d\u00ednh v\u00e0 b\u1ed9t nh\u00e3o kim c\u01b0\u01a1ng m\u00e0i m\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng theo th\u1ee9 t\u1ef1 1\u03bcm (#14000) ~ 0.5\u03bcm (#60000) ~ 0.25\u03bcm (#100000).\u00a0<\/span><\/p>\n
Qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c h\u01a1n 1\u03bcm (bao g\u1ed3m c\u1ea3 1\u03bcm) c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong ph\u00f2ng s\u1ea1ch. C\u00e1c lo\u1ea1i b\u1ee5i b\u1ea9n, h\u01a1i n\u01b0\u1edbc,… \u0111\u1ec1u c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng b\u1ec1 m\u1eb7t khu\u00f4n, nh\u1ea5t l\u00e0 khi y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/span><\/p>\n
$\"6$ <\/p>\n
Nh\u1eefng v\u1ea5n \u0111\u1ec1 c\u1ea7n l\u01b0u \u00fd trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng khu\u00f4n<\/b><\/span><\/h2>\n
Ch\u00fa \u00fd nh\u1eefng \u0111i\u1ec3m sau khi \u0111\u00e1nh b\u00f3ng b\u1eb1ng gi\u1ea5y nh\u00e1m v\u00e0 \u0111\u00e1 m\u00e0i d\u1ea7u<\/i><\/b><\/span><\/h3>\n
– Khi \u0111\u00e1nh b\u00f3ng c\u00e1c b\u1ec1 m\u1eb7t h\u00ecnh tr\u00f2n ho\u1eb7c h\u00ecnh c\u1ea7u, vi\u1ec7c s\u1eed d\u1ee5ng thanh \u0111\u00e1nh b\u00f3ng c\u00f3 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i (nh\u01b0 thanh n\u1ee9a, thanh tre) s\u1ebd ph\u00f9 h\u1ee3p h\u01a1n. C\u00e1c thanh c\u1ee9ng h\u01a1n, nh\u01b0 g\u1ed7, th\u00edch h\u1ee3p h\u01a1n \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng c\u00e1c b\u1ec1 m\u1eb7t ph\u1eb3ng.\u00a0<\/span><\/p>\n
– H\u00ecnh d\u1ea1ng c\u1ee7a d\u1ee5ng c\u1ee5 m\u00e0i ph\u1ea3i ph\u00f9 h\u1ee3p, t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi b\u1ec1 m\u1eb7t khu\u00f4n, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u00f4i kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng khi m\u00e0i, v\u00e0 kh\u00f4ng g\u00e2y ra c\u00e1c v\u1ebft x\u01b0\u1edbc s\u00e2u do \u1ea3nh h\u01b0\u1edfng c\u1ee7a d\u1ee5ng c\u1ee5 m\u00e0i, ch\u1eb3ng h\u1ea1n c\u00e1c g\u00f3c c\u1ea1nh nh\u1ecdn c\u1ee7a d\u1ee5ng c\u1ee5 m\u00e0i c\u00f3 th\u1ec3 g\u00e2y x\u01b0\u1edbc s\u00e2u khi m\u00e0i b\u1ec1 m\u1eb7t c\u1ea7u l\u00f5m.<\/span><\/p>\n
– Khi thay \u0111\u1ed5i c\u00e1c c\u00f4ng \u0111o\u1ea1n m\u00e0i hay khi thay \u0111\u1ed5i lo\u1ea1i gi\u1ea5y nh\u00e1m, h\u01b0\u1edbng \u0111\u00e1nh b\u00f3ng n\u00ean \u0111\u01b0\u1ee3c thay \u0111\u1ed5i t\u1eeb 45\u00b0 \u0111\u1ebfn 90\u00b0 \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c v\u1edbi c\u00e1c \u0111\u01b0\u1eddng \u0111\u00e1nh b\u00f3ng c\u1ee7a c\u00f4ng \u0111o\u1ea1n hay gi\u1ea5y nh\u00e1m tr\u01b0\u1edbc \u0111\u00e3 t\u1ea1o n\u00ean.<\/span><\/p>\n
– Tr\u01b0\u1edbc khi thay \u0111\u1ed5i c\u00e1c lo\u1ea1i gi\u1ea5y nh\u00e1m kh\u00e1c nhau, b\u1ec1 m\u1eb7t \u0111\u00e1nh b\u00f3ng c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c lau ch\u00f9i c\u1ea9n th\u1eadn b\u1eb1ng dung d\u1ecbch t\u1ea9y r\u1eeda, ch\u1eb3ng h\u1ea1n gi\u1ea5y 100% cotton th\u1ea5m c\u1ed3n, v\u00ec m\u1ed9t h\u1ea1t s\u1ea1n nh\u1ecf s\u00f3t l\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t khu\u00f4n s\u1ebd ph\u00e1 h\u1ecfng to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng.\u00a0<\/span><\/p>\n
Qu\u00e1 tr\u00ecnh l\u00e0m s\u1ea1ch n\u00e0y c\u0169ng r\u1ea5t quan tr\u1ecdng khi chuy\u1ec3n t\u1eeb \u0111\u00e1nh b\u00f3ng b\u1eb1ng gi\u1ea5y nh\u00e1m sang \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng. T\u1ea5t c\u1ea3 c\u00e1c h\u1ea1t s\u1ea1n v\u00e0 d\u1ea7u h\u1ecfa ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch ho\u00e0n to\u00e0n tr\u01b0\u1edbc khi ti\u1ebfp t\u1ee5c \u0111\u00e1nh b\u00f3ng.<\/span><\/p>\n
– \u0110\u1ec3 tr\u00e1nh l\u00e0m tr\u1ea7y x\u01b0\u1edbc b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i, ph\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u01b0u \u00fd khi \u0111\u00e1nh b\u00f3ng b\u1eb1ng gi\u1ea5y nh\u00e1m #1200 v\u00e0 #1500. C\u1ea7n l\u1ef1c nh\u1eb9 v\u00e0 \u0111\u00e1nh b\u00f3ng b\u1ec1 m\u1eb7t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng hai b\u01b0\u1edbc. Khi \u0111\u00e1nh b\u00f3ng v\u1edbi t\u1eebng lo\u1ea1i gi\u1ea5y nh\u00e1m, n\u00ean th\u1ef1c hi\u1ec7n \u0111\u00e1nh b\u00f3ng 2 l\u1ea7n theo 2 h\u01b0\u1edbng kh\u00e1c nhau, m\u1ed7i l\u1ea7n quay hai h\u01b0\u1edbng n\u1eb1m trong kho\u1ea3ng t\u1eeb 45\u00b0 \u0111\u1ebfn 90\u00b0.<\/span><\/p>\n
Ch\u00fa \u00fd nh\u1eefng \u0111i\u1ec3m sau khi m\u00e0i v\u00e0 \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng<\/i><\/b><\/span><\/h3>\n
– Vi\u1ec7c \u0111\u00e1nh b\u00f3ng n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n d\u01b0\u1edbi \u00e1p l\u1ef1c nh\u1eb9 nh\u1ea5t c\u00f3 th\u1ec3, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi \u0111\u00e1nh b\u00f3ng b\u1eb1ng c\u00e1c b\u1ed9 ph\u1eadn b\u1eb1ng th\u00e9p \u0111\u00e3 t\u00f4i c\u1ee9ng tr\u01b0\u1edbc v\u00e0 \u0111\u00e1nh b\u00f3ng b\u1eb1ng b\u1ed9t m\u00e0i m\u1ecbn.<\/span><\/p>\n
– Khi \u0111\u00e1nh b\u00f3ng b\u1eb1ng b\u1ed9t kim c\u01b0\u01a1ng d\u1ea1ng s\u1ec7t #8000, t\u1ea3i tr\u1ecdng ph\u1ed5 bi\u1ebfn l\u00e0 100 \u0111\u1ebfn 200 g\/cm<\/span>^{2<\/span><\/sup>, nh\u01b0ng r\u1ea5t kh\u00f3 \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a t\u1ea3i tr\u1ecdng n\u00e0y. \u0110\u1ec3 ki\u1ec3m so\u00e1t d\u1ec5 d\u00e0ng h\u01a1n, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t d\u1ee5ng c\u1ee5 m\u00e0i v\u1edbi tay c\u1ea7m nh\u1ecf v\u00e0 m\u1ea3nh h\u01a1n, \u0111i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c khi m\u00e0i s\u1ebd kh\u00f4ng qu\u00e1 cao.<\/span><\/span><\/p>\n}
– Khi m\u00e0i v\u00e0 \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng, kh\u00f4ng ch\u1ec9 b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch m\u00e0 b\u00e0n tay c\u1ee7a ng\u01b0\u1eddi th\u1ee3 c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch c\u1ea9n th\u1eadn.<\/span><\/p>\n
– M\u1ed7i l\u1ea7n \u0111\u00e1nh b\u00f3ng kh\u00f4ng \u0111\u01b0\u1ee3c qu\u00e1 d\u00e0i, th\u1eddi gian c\u00e0ng ng\u1eafn th\u00ec hi\u1ec7u qu\u1ea3 c\u00e0ng t\u1ed1t, n\u1ebfu qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng di\u1ec5n ra qu\u00e1 l\u00e2u s\u1ebd x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u201cs\u1ea7n v\u1ecf cam\u201d v\u00e0 \u201cr\u1ed7\u201d.<\/span><\/p>\n
– Khi qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng d\u1eebng l\u1ea1i, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o b\u1ec1 m\u1eb7t c\u1ee7a khu\u00f4n s\u1ea1ch s\u1ebd v\u00e0 ph\u1ea3i c\u1ea9n th\u1eadn lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t m\u00e0i m\u00f2n v\u00e0 ch\u1ea5t b\u00f4i tr\u01a1n, t\u1ed1t h\u01a1n n\u1eefa th\u00ec s\u01a1n m\u1ed9t l\u1edbp s\u01a1n ch\u1ed1ng g\u1ec9 tr\u00ean b\u1ec1 m\u1eb7t.<\/span><\/p>\n
$\"6$ <\/p>\n
Ch\u00fa \u00fd nh\u1eefng \u0111i\u1ec3m sau khi \u0111\u00e1nh b\u00f3ng khu\u00f4n nh\u1ef1a<\/i><\/b><\/span><\/h3>\n
– Vi\u1ec7c \u0111\u00e1nh b\u00f3ng trong gia c\u00f4ng khu\u00f4n nh\u1ef1a r\u1ea5t kh\u00e1c so v\u1edbi vi\u1ec7c \u0111\u00e1nh b\u00f3ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c. N\u00f3i m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c, vi\u1ec7c \u0111\u00e1nh b\u00f3ng khu\u00f4n nh\u1ef1a ph\u1ea3i \u0111\u1ea1t \u0111\u1ebfn \u0111\u1ed9 ho\u00e0n thi\u1ec7n \u1edf m\u1ee9c \u0111\u1ed9 g\u01b0\u01a1ng. N\u00f3 kh\u00f4ng ch\u1ec9 c\u00f3 y\u00eau c\u1ea7u cao v\u1ec1 \u0111\u00e1nh b\u00f3ng m\u00e0 c\u00f2n c\u00f3 c\u00e1c ti\u00eau chu\u1ea9n cao v\u1ec1 \u0111\u1ed9 ph\u1eb3ng b\u1ec1 m\u1eb7t, \u0111\u1ed9 m\u1ecbn v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c h\u00ecnh h\u1ecdc.<\/span><\/p>\n
– \u0110\u00e1nh b\u00f3ng b\u1ec1 m\u1eb7t th\u01b0\u1eddng ch\u1ec9 y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t s\u00e1ng b\u00f3ng. Ti\u00eau chu\u1ea9n \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng \u0111\u01b0\u1ee3c chia th\u00e0nh b\u1ed1n c\u1ea5p \u0111\u1ed9:<\/span><\/p>\n
\n
A0=Ra0.008\u03bcm<\/span><\/li>\n
A1=Ra0.016\u03bcm<\/span><\/li>\n
A2=Ra0.032\u03bcm<\/span><\/li>\n
A3=Ra0.063\u03bcm\u00a0<\/span><\/li>\n<\/ul>\n
– Do c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh b\u00f3ng \u0111i\u1ec7n ph\u00e2n, \u0111\u00e1nh b\u00f3ng d\u00f2ng ch\u1ea5t l\u1ecfng kh\u00f3 ki\u1ec3m so\u00e1t \u0111\u1ed9 ch\u00ednh x\u00e1c h\u00ecnh h\u1ecdc, c\u00f2n c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nh\u01b0 \u0111\u00e1nh b\u00f3ng h\u00f3a h\u1ecdc, \u0111\u00e1nh b\u00f3ng si\u00eau \u00e2m, \u0111\u00e1nh b\u00f3ng t\u1eeb t\u00ednh kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t. Do \u0111\u00f3, vi\u1ec7c \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng c\u00e1c b\u1ec1 m\u1eb7t khu\u00f4n nh\u1ef1a v\u1eabn ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc.<\/span><\/p>\n
\u1ea2nh h\u01b0\u1edfng c\u1ee7a c\u00e1c \u0111\u1ed9 c\u1ee9ng kh\u00e1c nhau \u0111\u1ebfn qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng<\/b><\/span><\/h2>\n
\u0110\u1ed9 c\u1ee9ng c\u00e0ng cao c\u00e0ng kh\u00f3 m\u00e0i, nh\u01b0ng \u0111\u1ed9 nh\u00e1m l\u1ea1i gi\u1ea3m khi \u0111\u00e1nh b\u00f3ng.\u00a0<\/span><\/p>\n
Khi \u0111\u1ed9 c\u1ee9ng t\u0103ng l\u00ean, th\u1eddi gian \u0111\u00e1nh b\u00f3ng c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 nh\u00e1m th\u1ea5p h\u01a1n c\u0169ng t\u0103ng theo.<\/span><\/p>\n
\u0110\u1ed3ng th\u1eddi, \u0111\u1ed9 c\u1ee9ng t\u0103ng l\u00ean th\u00ec kh\u1ea3 n\u0103ng \u0111\u00e1nh b\u00f3ng qu\u00e1 m\u1ee9c c\u0169ng gi\u1ea3m t\u01b0\u01a1ng \u1ee9ng.<\/span><\/p>\n
\u1ea2nh h\u01b0\u1edfng c\u1ee7a t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t ph\u00f4i \u0111\u1ebfn qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng<\/b><\/span><\/h2>\n
Trong qu\u00e1 tr\u00ecnh phay, l\u1edbp b\u1ec1 m\u1eb7t s\u1ebd b\u1ecb ph\u00e1 h\u1ee7y do nhi\u1ec7t, \u1ee9ng su\u1ea5t b\u00ean trong ho\u1eb7c c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c. C\u00e1c th\u00f4ng s\u1ed1 c\u1eaft kh\u00f4ng ph\u00f9 h\u1ee3p s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 \u0111\u00e1nh b\u00f3ng.<\/span><\/p>\n
B\u1ec1 m\u1eb7t sau gia c\u00f4ng EDM kh\u00f3 \u0111\u00e1nh b\u00f3ng h\u01a1n b\u1ec1 m\u1eb7t sau gia c\u00f4ng c\u1eaft g\u1ecdt ho\u1eb7c x\u1eed l\u00fd nhi\u1ec7t th\u00f4ng th\u01b0\u1eddng.<\/span><\/p>\n
$\"6$ <\/p>\n
M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 khi \u0111\u00e1nh b\u00f3ng khu\u00f4n nh\u1ef1a v\u00e0 c\u00e1ch x\u1eed l\u00fd<\/b><\/span><\/h2>\n
\u0110\u00e1nh b\u00f3ng qu\u00e1 m\u1ee9c<\/b><\/span><\/h3>\n
\u0110\u00e1nh b\u00f3ng qu\u00e1 m\u1ee9c l\u00e0 v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p ph\u1ea3i nh\u1ea5t, tri\u1ec7u ch\u1ee9ng c\u1ee7a qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 khi\u1ebfn khu\u00f4n nh\u1ef1a s\u1ea7n s\u00f9i nh\u01b0 v\u1ecf cam v\u00e0 r\u1ed7, l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t khu\u00f4n.<\/span><\/p>\n
\u0110\u00e1nh b\u00f3ng qu\u00e1 m\u1ee9c h\u1ea7u h\u1ebft x\u1ea3y ra trong \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc, khi th\u1eddi gian \u0111\u00e1nh b\u00f3ng qu\u00e1 l\u00e2u ho\u1eb7c \u0111\u00e1nh b\u00f3ng qu\u00e1 nhi\u1ec1u khi\u1ebfn v\u01b0\u1ee3t qua m\u1ee9c gi\u1edbi h\u1ea1n, m\u00e0 l\u1ebd ra ph\u1ea3i d\u1eebng l\u1ea1i tr\u01b0\u1edbc \u0111\u00f3.<\/span><\/p>\n
Nguy\u00ean nh\u00e2n xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng \u201cs\u1ea7n v\u1ecf cam\u201d tr\u00ean b\u1ec1 m\u1eb7t khu\u00f4n<\/b><\/span><\/h4>\n
L\u00fd do ch\u00ednh x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0 do b\u1ec1 m\u1eb7t khu\u00f4n qu\u00e1 n\u00f3ng ho\u1eb7c do th\u1ea5m qu\u00e1 nhi\u1ec1u cacbon (gi\u1ea3i th\u00edch v\u00ec sao \u0111\u00e1nh b\u00f3ng b\u1eb1ng kim c\u01b0\u01a1ng qu\u00e1 l\u00e2u s\u1ebd khi\u1ebfn b\u1ec1 m\u1eb7t khu\u00f4n b\u1ecb s\u1ea7n v\u1ecf cam). \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra do \u00e1p l\u1ef1c \u0111\u00e1nh b\u00f3ng cao v\u00e0 th\u1eddi gian \u0111\u00e1nh b\u00f3ng qu\u00e1 l\u00e2u.<\/span><\/p>\n
Nh\u01b0 \u0111\u00e3 n\u00f3i \u1edf ph\u1ea7n tr\u01b0\u1edbc, c\u00e1c lo\u1ea1i th\u00e9p c\u1ee9ng h\u01a1n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t \u0111\u00e1nh b\u00f3ng cao h\u01a1n, th\u00e9p m\u1ec1m h\u01a1n s\u1ebd d\u1ec5 b\u1ecb \u0111\u00e1nh b\u00f3ng qu\u00e1 m\u1ee9c h\u01a1n.<\/span><\/p>\n
Bi\u1ec7n ph\u00e1p lo\u1ea1i b\u1ecf hi\u1ec7n t\u01b0\u1ee3ng \u201cs\u1ea7n v\u1ecf cam\u201d tr\u00ean khu\u00f4n<\/b><\/span><\/h4>\n
Khi b\u1eaft \u0111\u1ea7u nh\u1eadn th\u1ea5y b\u1ec1 m\u1eb7t khu\u00f4n xu\u1ea5t hi\u1ec7n r\u00f5, nhi\u1ec1u ng\u01b0\u1eddi c\u00f3 xu h\u01b0\u1edbng t\u0103ng \u00e1p l\u1ef1c \u0111\u00e1nh b\u00f3ng ho\u1eb7c k\u00e9o d\u00e0i th\u1eddi gian \u0111\u00e1nh b\u00f3ng, \u0111i\u1ec1u n\u00e0y ch\u1ec9 khi\u1ebfn t\u00ecnh tr\u1ea1ng n\u00e0y b\u1ecb x\u1ea5u h\u01a1n.<\/span><\/p>\n
Do \u0111\u00f3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 kh\u1eafc ph\u1ee5c t\u00ecnh tr\u1ea1ng n\u00e0y:<\/span><\/p>\n
(1) \u0110\u1ec3 l\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t b\u1ecb l\u1ed7i, b\u1ea1n n\u00ean s\u1eed d\u1ee5ng c\u1ee1 h\u1ea1t m\u00e0i l\u1edbn h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t tr\u01b0\u1edbc \u0111\u00f3. Sau \u0111\u00f3, th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh m\u00e0i v\u1edbi l\u1ef1c nh\u1eb9 v\u00e0 \u0111\u1ec1u tay h\u01a1n.<\/span><\/p>\n
(2) Gi\u1ea3m \u0111\u1ed9 c\u0103ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n nhi\u1ec7t \u0111\u1ed9 t\u00f4i th\u00e9p 25\u00b0C, sau \u0111\u00f3 m\u00e0i v\u1edbi h\u1ea1t m\u00e0i m\u1ecbn nh\u1ea5t tr\u01b0\u1edbc khi \u0111\u00e1nh b\u00f3ng \u0111\u1ebfn khi \u0111\u1ea1t k\u1ebft hi\u1ec7u qu\u1ea3 \u01b0ng \u00fd, sau c\u00f9ng \u0111\u00e1nh b\u00f3ng b\u1eb1ng l\u1ef1c nh\u1eb9 h\u01a1n.<\/span><\/p>\n
Nguy\u00ean nh\u00e2n h\u00ecnh th\u00e0nh r\u1ed7 tr\u00ean b\u1ec1 m\u1eb7t ph\u00f4i<\/b><\/span><\/h4>\n
L\u00fd do ch\u00ednh l\u00e0 do m\u1ed9t s\u1ed1 t\u1ea1p ch\u1ea5t kim lo\u1ea1i c\u00f3 trong th\u00e9p (th\u01b0\u1eddng l\u00e0 nh\u1eefng ox\u00edt c\u1ee9ng v\u00e0 gi\u00f2n, c\u00f3 k\u1ebft c\u1ea5u kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t) b\u1ecb k\u00e9o ra kh\u1ecfi b\u1ec1 m\u1eb7t th\u00e9p trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng, t\u1eeb \u0111\u00f3 t\u1ea1o ra c\u00e1c v\u1ebft r\u1ed7. Nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng r\u1ed7 b\u1ec1 m\u1eb7t khu\u00f4n g\u1ed3m:<\/span><\/p>\n
– \u00c1p su\u1ea5t \u0111\u00e1nh b\u00f3ng qu\u00e1 l\u1edbn v\u00e0 th\u1eddi gian \u0111\u00e1nh b\u00f3ng qu\u00e1 l\u00e2u.<\/span><\/p>\n
– Ph\u00f4i kh\u00f4ng \u0111\u1ee7 tinh khi\u1ebft, h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t trong ph\u00f4i cao.<\/span><\/p>\n
– B\u1ec1 m\u1eb7t khu\u00f4n b\u1ecb r\u1ec9 s\u00e9t.<\/span><\/p>\n
– C\u00e1c ph\u1ea7n ch\u00e1y kh\u00f4ng b\u1ecb lo\u1ea1i b\u1ecf.<\/span><\/p>\n
Bi\u1ec7n ph\u00e1p \u0111\u1ec3 lo\u1ea1i b\u1ecf hi\u1ec7n t\u01b0\u1ee3ng r\u1ed7 b\u1ec1 m\u1eb7t<\/b><\/span><\/h4>\n
C\u00f3 th\u1ec3 tr\u00e1nh ho\u1eb7c x\u1eed l\u00fd hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y b\u1eb1ng nh\u1eefng c\u00e1ch sau \u0111\u00e2y:<\/span><\/p>\n
(1) C\u1ea9n th\u1eadn m\u00e0i l\u1ea1i b\u1ec1 m\u1eb7t. K\u00edch th\u01b0\u1edbc h\u1ea1t m\u00e0i c\u1ea7n l\u1edbn h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u01b0\u1edbc \u0111\u00f3, b\u01b0\u1edbc m\u00e0i cu\u1ed1i c\u00f9ng tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n \u0111\u00e1nh b\u00f3ng n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1eb1ng \u0111\u00e1 m\u00e0i d\u1ea7u m\u1ec1m v\u00e0 s\u1eafc n\u00e9t. Sau khi th\u1ef1c hi\u1ec7n xong, ti\u1ebfn h\u00e0nh \u0111\u00e1nh b\u00f3ng l\u1ea1i.<\/span><\/p>\n
(2) Tr\u00e1nh d\u00f9ng nh\u1eefng v\u1eadt d\u1ee5ng \u0111\u00e1nh b\u00f3ng m\u1ec1m khi k\u00edch th\u01b0\u1edbc s\u1ea1n nh\u1ecf h\u01a1n 1mm.<\/span><\/p>\n
(3) S\u1eed d\u1ee5ng l\u1ef1c \u0111\u00e1nh b\u00f3ng t\u1ed1i thi\u1ec3u v\u00e0 th\u1eddi gian tr\u00ean m\u1ed9t l\u1ea7n \u0111\u00e1nh b\u00f3ng ng\u1eafn nh\u1ea5t.<\/span><\/p>\n
$\"6$ <\/p>\n
Tr\u00ean b\u1ec1 m\u1eb7t khu\u00f4n sau khi \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng v\u1eabn c\u00f2n nhi\u1ec1u v\u1ebft x\u01b0\u1edbc li ti<\/b><\/span><\/h3>\n
M\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00e1c c\u0169ng d\u1ec5 x\u1ea3y ra l\u00e0 sau khi th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng khu\u00f4n cu\u1ed1i c\u00f9ng m\u00e0 tr\u00ean b\u1ec1 m\u1eb7t v\u1eabn c\u00f2n nh\u1eefng v\u1ebft x\u01b0\u1edbc li ti. C\u00f3 th\u1ec3 khi nh\u00ecn tr\u1ef1c di\u1ec7n s\u1ebd kh\u00f3 nh\u00ecn th\u1ea5y v\u1ebft x\u01b0\u1edbc n\u00e0y, nh\u01b0ng khi nh\u00ecn ch\u1ebfch v\u1edbi \u00e1nh s\u00e1ng th\u00edch h\u1ee3p s\u1ebd th\u1ea5y chi ch\u00edt nh\u1eefng v\u1ebft x\u01b0\u1edbc c\u1ef1c k\u1ef3 nh\u1ecf n\u00e0y.\u00a0<\/span><\/p>\n
Nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu g\u00e2y ra v\u1ea5n \u0111\u1ec1 n\u00e0y l\u00e0 do qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng cu\u1ed1i ch\u01b0a \u0111\u1ebfn k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u01b0 mong \u0111\u1ee3t, b\u1ed9t \u0111\u00e1nh b\u00f3ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t cao, m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c kh\u00f4ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 s\u1ea1ch.<\/span><\/p>\n
\u0110\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng c\u00e1ch x\u1eed l\u00fd:<\/span><\/p>\n
(1) S\u1eed d\u1ee5ng b\u1ed9t kim c\u01b0\u01a1ng ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ebfn t\u1eeb c\u00e1c th\u01b0\u01a1ng hi\u1ec7u n\u1ed5i ti\u1ebfng.<\/span><\/p>\n
(2) S\u1eed d\u1ee5ng h\u1ea1t k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n \u0111\u1ec3 l\u00e0m m\u1ea5t c\u00e1c v\u1ebft x\u01b0\u1edbc li ti. C\u00f3 th\u1ec3 xu\u1ed1ng \u0111\u1ebfn 1\u03bcm ho\u1eb7c 0.5\u03bcm.<\/span><\/p>\n
(3) Th\u1ef1c hi\u1ec7n kh\u00e2u \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng trong ph\u00f2ng s\u1ea1ch.<\/span><\/p>\n
\u0110\u1ed1i v\u1edbi khu\u00f4n m\u1eabu, \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ef1c s\u1ef1 quan tr\u1ecdng, \u0111\u1eb7c bi\u1ec7t v\u1edbi nh\u1eefng s\u1ea3n ph\u1ea9m y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t v\u00e0 k\u00edch th\u01b0\u1edbc \u1edf m\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c cao. Ch\u00ednh v\u00ec v\u1eady, r\u1ea5t c\u1ea7n nh\u1eefng thi\u1ebft b\u1ecb \u0111o c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao nh\u01b0 m\u00e1y \u0111o qu\u00e9t laser 3D FARO \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a khu\u00f4n m\u1eabu.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
\u0110\u00e1nh b\u00f3ng khu\u00f4n kh\u00f4ng ch\u1ec9 gi\u00fap n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, m\u00e0 c\u00f2n t\u0103ng t\u00ednh th\u1ea9m m\u1ef9, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, gi\u1ea3m chu k\u1ef3 \u00e9p phun,… V\u00ec v\u1eady, \u0111\u00e1nh b\u00f3ng l\u00e0 m\u1ed9t quy tr\u00ecnh r\u1ea5t quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t khu\u00f4n nh\u1ef1a. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd mang \u0111\u1ebfn c\u00e1c […]\n","protected":false},"author":9,"featured_media":16233,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[518],"tags":[],"class_list":["post-16232","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-ky-thuat"],"lang":"vi","translations":{"vi":16232},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/posts\/16232"}],"collection":[{"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/comments?post=16232"}],"version-history":[{"count":6,"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/posts\/16232\/revisions"}],"predecessor-version":[{"id":23490,"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/posts\/16232\/revisions\/23490"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/media\/16233"}],"wp:attachment":[{"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/media?parent=16232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/categories?post=16232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixox.net\/wp-json\/wp\/v2\/tags?post=16232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}