{"id":13789,"date":"2019-11-14T07:12:35","date_gmt":"2019-11-14T07:12:35","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=13789"},"modified":"2020-05-07T02:50:57","modified_gmt":"2020-05-07T02:50:57","slug":"something-informative-about-metallurgy","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/something-informative-about-metallurgy\/","title":{"rendered":"M\u1ed9t c\u00e1i g\u00ec \u0111\u00f3 th\u00f4ng tin v\u1ec1 luy\u1ec7n kim"},"content":{"rendered":"

Luy\u1ec7n kim b\u1ed9t l\u00e0 c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t b\u1ed9t kim lo\u1ea1i ho\u1eb7c s\u1eed d\u1ee5ng b\u1ed9t kim lo\u1ea1i (ho\u1eb7c h\u1ed7n h\u1ee3p b\u1ed9t kim lo\u1ea1i v\u00e0 b\u1ed9t phi kim lo\u1ea1i) l\u00e0m nguy\u00ean li\u1ec7u th\u00f4, th\u00f4ng qua qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh, nung k\u1ebft, s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u kim lo\u1ea1i v\u00e0 c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m kh\u00e1c nhau. C\u00f3 m\u1ed9t s\u1ed1 \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng gi\u1eefa luy\u1ec7n kim b\u1ed9t v\u00e0 s\u1ea3n xu\u1ea5t g\u1ed1m, \u0111\u1ec1u thu\u1ed9c c\u00f4ng ngh\u1ec7 thi\u00eau k\u1ebft b\u1ed9t. Do \u0111\u00f3, c\u00f4ng ngh\u1ec7 luy\u1ec7n kim c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u g\u1ed1m. Do nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 luy\u1ec7n kim b\u1ed9t, n\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh ch\u00eca kh\u00f3a \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u1eadt li\u1ec7u m\u1edbi v\u00e0 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a v\u1eadt li\u1ec7u m\u1edbi.<\/p>

\"\"<\/figure>

L\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng<\/strong>S<\/strong> luy\u1ec7n kim b\u1ed9t<\/strong><\/strong><\/h2>

Tr\u01b0\u1edbc h\u1ebft, c\u00f4ng ngh\u1ec7 luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 ph\u00e2n t\u00e1ch c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n h\u1ee3p kim v\u00e0 lo\u1ea1i b\u1ecf c\u1ea5u tr\u00fac \u0111\u00fac th\u00f4 v\u00e0 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u. N\u00f3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111i\u1ec1u ch\u1ebf v\u1eadt li\u1ec7u t\u1eeb v\u0129nh c\u1eedu \u0111\u1ea5t hi\u1ebfm hi\u1ec7u su\u1ea5t cao, v\u1eadt li\u1ec7u l\u01b0u tr\u1eef hydro \u0111\u1ea5t hi\u1ebfm, v\u1eadt li\u1ec7u ph\u00e1t quang \u0111\u1ea5t hi\u1ebfm, ch\u1ea5t x\u00fac t\u00e1c \u0111\u1ea5t hi\u1ebfm, ch\u1ea5t si\u00eau d\u1eabn nhi\u1ec7t \u0111\u1ed9 cao, v.v.<\/p>

Th\u1ee9 hai, m\u1ed9t lo\u1ea1t c\u00e1c v\u1eadt li\u1ec7u hi\u1ec7u su\u1ea5t cao nh\u01b0 v\u00f4 \u0111\u1ecbnh h\u00ecnh, vi tinh th\u1ec3, chu\u1ea9n tinh th\u1ec3, tinh th\u1ec3 nano v\u00e0 dung d\u1ecbch r\u1eafn si\u00eau b\u00e3o h\u00f2a \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf. Nh\u1eefng v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao n\u00e0y c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n, t\u1eeb, quang h\u1ecdc v\u00e0 c\u01a1 h\u1ecdc tuy\u1ec7t v\u1eddi.<\/p>

Khi \u0111\u00f3 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng nh\u1eadn ra c\u00e1c lo\u1ea1i composite, ph\u00e1t huy h\u1ebft \u0111\u1eb7c t\u00ednh c\u1ee7a t\u1eebng nh\u00f3m nguy\u00ean li\u1ec7u ngu\u1ed3n, c\u00f3 th\u1ec3 n\u00f3i l\u00e0 s\u1ea3n xu\u1ea5t ma tr\u1eadn kim lo\u1ea1i hi\u1ec7u su\u1ea5t cao v\u00e0 c\u00f4ng ngh\u1ec7 g\u1ed1m composite v\u1edbi chi ph\u00ed th\u1ea5p.<\/p>

Ngo\u00e0i ra, c\u00f4ng ngh\u1ec7 luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 t\u1ea1o ra h\u00ecnh d\u1ea1ng g\u1ea7n l\u01b0\u1edbi v\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t t\u1ef1 \u0111\u1ed9ng, \u0111\u1ed3ng th\u1eddi c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m hi\u1ec7u qu\u1ea3 t\u00e0i nguy\u00ean s\u1ea3n xu\u1ea5t v\u00e0 gi\u1ea3m ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng.<\/p>

S\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 luy\u1ec7n b\u1ed9t c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c qu\u1eb7ng, qu\u1eb7ng th\u1ea3i, b\u00f9n th\u1ea3i luy\u1ec7n th\u00e9p, quy m\u00f4 nh\u00e0 m\u00e1y luy\u1ec7n th\u00e9p, thu h\u1ed3i kim lo\u1ea1i th\u1ea3i l\u00e0m nguy\u00ean li\u1ec7u. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 m\u1edbi c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n t\u00e1i t\u1ea1o v\u1eadt li\u1ec7u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 s\u1eed d\u1ee5ng to\u00e0n di\u1ec7n.<\/p>

\"\"<\/figure>

\u01afu \u0111i\u1ec3m c\u1ee7a qu\u00e1 tr\u00ecnh luy\u1ec7n kim b\u1ed9t<\/strong><\/strong><\/h2>

1. N\u00f3 c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t. V\u1eadt li\u1ec7u luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t kim lo\u1ea1i ch\u1ecbu l\u1eeda, h\u1ee3p ch\u1ea5t, h\u1ee3p kim gi\u1ea3 v\u00e0 v\u1eadt li\u1ec7u x\u1ed1p.<\/p>

2. Ti\u1ebft ki\u1ec7m kim lo\u1ea1i v\u00e0 gi\u1ea3m chi ph\u00ed. B\u1edfi v\u00ec luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e9p th\u00e0nh k\u00edch th\u01b0\u1edbc cu\u1ed1i c\u00f9ng c\u1ee7a nh\u1ecf g\u1ecdn, kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng gia c\u00f4ng. L\u01b0\u1ee3ng kim lo\u1ea1i b\u1ecb hao h\u1ee5t theo ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ch\u1ec9 l\u00e0 1-5%, trong khi c\u1ee7a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd chung l\u00e0 80%.<\/p>

3. Chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao. Qu\u00e1 tr\u00ecnh luy\u1ec7n kim b\u1ed9t kh\u00f4ng l\u00e0m tan ch\u1ea3y v\u1eadt li\u1ec7u trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u, v\u00e0 n\u00f3 s\u1ebd kh\u00f4ng tr\u1ed9n l\u1eabn v\u1edbi c\u00e1c t\u1ea1p ch\u1ea5t do c\u00e1c ch\u1ea5t kh\u00e1c mang l\u1ea1i. Qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng v\u00e0 kh\u00f4ng kh\u00ed kh\u1eed, v\u00e0 n\u00f3 kh\u00f4ng s\u1ee3 b\u1ecb oxy h\u00f3a ho\u1eb7c b\u1ea5t k\u1ef3 \u00f4 nhi\u1ec5m n\u00e0o c\u1ee7a v\u1eadt li\u1ec7u. Do \u0111\u00f3, \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a s\u1ea3n ph\u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i cao.<\/p>

4. T\u00ednh \u0111\u00fang \u0111\u1eafn c\u1ee7a ph\u00e2n ph\u1ed1i v\u1eadt ch\u1ea5t. Luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed3ng nh\u1ea5t c\u1ee7a th\u00e0nh ph\u1ea7n nguy\u00ean li\u1ec7u theo t\u1ef7 l\u1ec7.<\/p>

5. S\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t gi\u1ea3m gi\u00e1 th\u00e0nh. Luy\u1ec7n kim b\u1ed9t th\u00edch h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 s\u1ed1 l\u01b0\u1ee3ng l\u1edbn h\u00ecnh d\u1ea1ng \u0111\u1ed3ng nh\u1ea5t, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00e1nh r\u0103ng v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c v\u1edbi gi\u00e1 th\u00e0nh cao, c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 chi ph\u00ed s\u1ea3n xu\u1ea5t.<\/p>

Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a qu\u00e1 tr\u00ecnh luy\u1ec7n kim b\u1ed9t<\/strong><\/strong><\/h2>

1. \u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai c\u1ee7a s\u1ea3n ph\u1ea9m P \/ M k\u00e9m. Do kh\u00f4ng th\u1ec3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n c\u00e1c l\u1ed7 r\u1ed7ng b\u00ean trong ph\u00f4i \u00e9p n\u00ean \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m P \/ M k\u00e9m h\u01a1n c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u00fac v\u00e0 r\u00e8n c\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng \u1ee9ng.<\/p>

2. Luy\u1ec7n kim b\u1ed9t kh\u00f4ng th\u1ec3 ch\u1ebf t\u1ea1o th\u00e0nh s\u1ea3n ph\u1ea9m l\u1edbn. V\u00ec t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a b\u1ed9t kim lo\u1ea1i k\u00e9m h\u01a1n kim lo\u1ea1i l\u1ecfng n\u00ean h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3 s\u1ebd b\u1ecb h\u1ea1n ch\u1ebf \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a n\u00f3 s\u1ebd kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 10 kg.<\/p>

3. Chi ph\u00ed ch\u1ebft cao. Do chi ph\u00ed ch\u1ebf t\u1ea1o khu\u00f4n qu\u00e1 cao n\u00ean ch\u1ec9 th\u00edch h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t.<\/p>

\"\"<\/figure>

B\u1ea3n ch\u1ea5t c\u1ee7a b\u1ed9t l\u00e0 r\u1ea5t quan tr\u1ecdng<\/strong><\/h2>

B\u1ed9t l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung cho t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh ch\u1ea5t, bao g\u1ed3m c\u00e1c t\u00ednh ch\u1ea5t h\u00ecnh h\u1ecdc (k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng h\u1ea1t), t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a b\u1ed9t. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y kh\u00f4ng th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00fac truy\u1ec1n th\u1ed1ng. \u1ede m\u1ed9t m\u1ee9c \u0111\u1ed9 l\u1edbn, c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a b\u1ed9t th\u01b0\u1eddng quy\u1ebft \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a s\u1ea3n ph\u1ea9m P \/ M.<\/p>

\u0110\u1ed9 chi ti\u1ebft. \u0110\u00f3 l\u00e0 s\u1ef1 co ng\u00f3t trong qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft v\u00e0 hi\u1ec7u su\u1ea5t cu\u1ed1i c\u00f9ng c\u1ee7a s\u1ea3n ph\u1ea9m, c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn v\u00e0 h\u00ecnh th\u00e0nh b\u1ed9t. M\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t g\u1ea7n nh\u01b0 li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn k\u00edch th\u01b0\u1edbc h\u1ea1t. V\u00ed d\u1ee5, \u0111\u1ed9 ch\u00ednh x\u00e1c l\u1ecdc c\u1ee7a v\u1eadt li\u1ec7u l\u1ecdc c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c theo kinh nghi\u1ec7m b\u1eb1ng c\u00e1ch chia k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh c\u1ee7a h\u1ea1t ban \u0111\u1ea7u cho 10.<\/p>

H\u00ecnh d\u1ea1ng h\u1ea1t c\u1ee7a b\u1ed9t. N\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n th\u00e0nh b\u1ed9t, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9t \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch \u0111i\u1ec7n ph\u00e2n, c\u00e1c h\u1ea1t \u0111\u01b0\u1ee3c dendrite nh\u01b0 th\u1ebf n\u00e0o; b\u1ed9t s\u1eaft \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p kh\u1eed l\u00e0 b\u1ecdt bi\u1ec3n gi\u1ed1ng nh\u01b0. Ngo\u00e0i ra, m\u1ed9t s\u1ed1 lo\u1ea1i b\u1ed9t l\u00e0 tr\u1ee9ng, \u0111\u0129a, kim, h\u00e0nh,\u2026 H\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c h\u1ea1t b\u1ed9t s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 d\u1ebbo v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a b\u1ed9t. Do s\u1ef1 chia l\u01b0\u1edbi c\u01a1 h\u1ecdc gi\u1eefa c\u00e1c h\u1ea1t, \u0111\u1ed9 b\u1ec1n c\u1ee7a b\u1ed9t kh\u00f4ng \u0111\u1ec1u c\u0169ng l\u1edbn, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi b\u1ed9t dendrite. Nh\u01b0ng \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u x\u1ed1p th\u00ec b\u1ed9t h\u00ecnh c\u1ea7u l\u00e0 t\u1ed1t nh\u1ea5t.<\/p>

C\u01a1 t\u00ednh T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a b\u1ed9t l\u00e0 t\u00ednh ch\u1ea5t c\u00f4ng ngh\u1ec7 c\u1ee7a b\u1ed9t. N\u00f3 l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh b\u1ed9t luy\u1ec7n kim. T\u1ef7 tr\u1ecdng r\u1eddi c\u1ee7a b\u1ed9t l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 c\u00e2n theo ph\u01b0\u01a1ng ph\u00e1p th\u1ec3 t\u00edch trong qu\u00e1 tr\u00ecnh \u00e9p; \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng c\u1ee7a b\u1ed9t x\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 \u0111i\u1ec1n \u0111\u1ea7y c\u1ee7a b\u1ed9t v\u00e0o khu\u00f4n v\u00e0 n\u0103ng l\u1ef1c s\u1ea3n xu\u1ea5t c\u1ee7a m\u00e1y \u00e9p; kh\u1ea3 n\u0103ng n\u00e9n c\u1ee7a b\u1ed9t x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 kh\u00f3 c\u1ee7a qu\u00e1 tr\u00ecnh \u00e9p v\u00e0 \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng; v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecbnh d\u1ea1ng c\u1ee7a b\u1ed9t quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n c\u1ee7a ph\u00f4i.<\/p>

C\u00e1c t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc ch\u1ee7 y\u1ebfu ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 tinh khi\u1ebft h\u00f3a h\u1ecdc c\u1ee7a nguy\u00ean li\u1ec7u th\u00f4 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n th\u00e0nh b\u1ed9t. H\u00e0m l\u01b0\u1ee3ng oxy cao h\u01a1n s\u1ebd l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t \u00e9p, \u0111\u1ed9 b\u1ec1n c\u1ee7a \u0111\u1ea7m n\u00e9n v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a s\u1ea3n ph\u1ea9m thi\u00eau k\u1ebft, do \u0111\u00f3, c\u00f3 m\u1ed9t s\u1ed1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt nh\u1ea5t \u0111\u1ecbnh trong h\u1ea7u h\u1ebft c\u00e1c \u0111i\u1ec1u ki\u1ec7n k\u1ef9 thu\u1eadt c\u1ee7a PM.<\/p>

Luy\u1ec7n kim b\u1ed9t c\u00f3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, t\u00ednh ch\u1ea5t c\u01a1 l\u00fd h\u1ecdc \u0111\u1ed9c \u0111\u00e1o m\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u00fac truy\u1ec1n th\u1ed1ng kh\u00f4ng th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c. C\u00e1c v\u1eadt li\u1ec7u v\u00e0 s\u1ea3n ph\u1ea9m d\u1ea1ng x\u1ed1p, n\u1eeda \u0111\u1eadm \u0111\u1eb7c ho\u1eb7c ho\u00e0n to\u00e0n \u0111\u1eadm \u0111\u1eb7c, ch\u1eb3ng h\u1ea1n nh\u01b0 \u1ed5 tr\u1ee5c d\u1ea7u, b\u00e1nh r\u0103ng, cam, thanh d\u1eabn h\u01b0\u1edbng, dao c\u1eaft, v.v., c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o tr\u1ef1c ti\u1ebfp b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 luy\u1ec7n kim b\u1ed9t. N\u00f3 l\u00e0 m\u1ed9t lo\u1ea1i s\u1ea3n ph\u1ea9m luy\u1ec7n kim b\u1ed9t c\u1ea7n \u00edt ho\u1eb7c kh\u00f4ng c\u1ea7n c\u1eaft.<\/p>

\"\"<\/figure>

Qu\u00e1 tr\u00ecnh luy\u1ec7n kim b\u1ed9t ph\u1ed5 bi\u1ebfn<\/h2>

Qu\u00e1 tr\u00ecnh m\u00e0i<\/h3>

M\u00e0i l\u00e0 ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng c\u1eaft b\u1ecf c\u00e1c v\u1eadt li\u1ec7u th\u1eeba tr\u00ean ph\u00f4i b\u1eb1ng c\u00e1c d\u1ee5ng c\u1ee5 m\u00e0i m\u00f2n v\u00e0 m\u00e0i m\u00f2n.<\/p>

\"\"<\/figure>

L\u1eadp k\u1ebf ho\u1ea1ch<\/strong><\/strong><\/h3>

B\u00e0o l\u00e0 m\u1ed9t lo\u1ea1i ph\u01b0\u01a1ng ph\u00e1p c\u1eaft s\u1eed d\u1ee5ng m\u00e1y b\u00e0o \u0111\u1ec3 th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed9ng t\u1ecbnh ti\u1ebfn t\u01b0\u01a1ng \u0111\u1ed1i ngang tr\u00ean ph\u00f4i. N\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd h\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn. \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a b\u00e0o l\u00e0 it9 ~ it7, v\u00e0 \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t Ra l\u00e0 6.3 ~ 1.6um.<\/p>

L\u1eafng \u0111\u1ecdng kim lo\u1ea1i<\/strong><\/strong><\/h3>
\"\"<\/figure>

N\u00f3 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 ki\u1ec3u l\u1eafng \u0111\u1ecdng n\u00f3ng ch\u1ea3y "d\u1ea7u v\u1eaft s\u1eefa", nh\u01b0ng b\u1ed9t kim lo\u1ea1i \u0111\u01b0\u1ee3c \u0111\u1ea9y ra. Ngo\u00e0i vi\u1ec7c phun c\u00e1c v\u1eadt li\u1ec7u b\u1ed9t kim lo\u1ea1i, \u0111\u1ea7u phun c\u00f2n cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 b\u1eb1ng tia laser v\u00e0 kh\u00ed tr\u01a1 c\u00f4ng su\u1ea5t cao. B\u1eb1ng c\u00e1ch n\u00e0y, n\u00f3 s\u1ebd kh\u00f4ng b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi k\u00edch th\u01b0\u1edbc c\u1ee7a h\u1ed9p b\u1ed9t kim lo\u1ea1i, v\u00e0 c\u00f3 th\u1ec3 tr\u1ef1c ti\u1ebfp s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn l\u1edbn h\u01a1n, v\u00e0 n\u00f3 c\u0169ng r\u1ea5t th\u00edch h\u1ee3p cho vi\u1ec7c s\u1eeda ch\u1eefa c\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh x\u00e1c b\u1ecb h\u01b0 h\u1ecfng c\u1ee5c b\u1ed9.<\/p>

Quay<\/h3>

Ti\u1ec7n l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng c\u01a1 kh\u00ed. Chi ti\u1ebft gia c\u00f4ng k\u00e9o s\u1ee3i \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng c\u00e1ch quay c\u00e1c bit tr\u00ean b\u1ec7 l\u00e0m vi\u1ec7c c\u1ee7a m\u00e1y ti\u1ec7n. Th\u1eadt an to\u00e0n khi n\u00f3i ti\u1ec7n l\u00e0 c\u00e1ch gia c\u00f4ng ti\u1ec7n \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong ch\u1ebf t\u1ea1o m\u00e1y. Ti\u1ec7n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u1eaft ph\u00f4i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng chuy\u1ec3n \u0111\u1ed9ng quay c\u1ee7a ph\u00f4i so v\u1edbi dao c\u1eaft tr\u00ean m\u00e1y ti\u1ec7n. N\u0103ng l\u01b0\u1ee3ng c\u1eaft c\u1ee7a qu\u00e1 tr\u00ecnh ti\u1ec7n ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi ph\u00f4i ch\u1ee9 kh\u00f4ng ph\u1ea3i d\u1ee5ng c\u1ee5. Ti\u1ec7n th\u00edch h\u1ee3p \u0111\u1ec3 gia c\u00f4ng b\u1ec1 m\u1eb7t quay. H\u1ea7u h\u1ebft c\u00e1c ph\u00f4i c\u00f3 b\u1ec1 m\u1eb7t quay c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia c\u00f4ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ti\u1ec7n, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ec1 m\u1eb7t h\u00ecnh tr\u1ee5 trong v\u00e0 ngo\u00e0i, b\u1ec1 m\u1eb7t h\u00ecnh n\u00f3n trong v\u00e0 ngo\u00e0i, m\u1eb7t cu\u1ed1i, r\u00e3nh, ren v\u00e0 b\u1ec1 m\u1eb7t t\u1ea1o h\u00ecnh quay, v.v. \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu l\u00e0 c\u00e1c c\u00f4ng c\u1ee5 ti\u1ec7n.<\/p>

\"\"<\/figure>

X\u1eed l\u00fd b\u1ea3n v\u1ebd<\/h3>

Qu\u00e1 tr\u00ecnh k\u00e9o l\u00e0 m\u1ed9t lo\u1ea1i ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng nh\u1ef1a k\u00e9o ph\u00f4i kim lo\u1ea1i ra kh\u1ecfi l\u1ed7 khu\u00f4n nh\u1ecf h\u01a1n ti\u1ebft di\u1ec7n c\u1ee7a ph\u00f4i b\u1eb1ng t\u00e1c \u0111\u1ed9ng c\u1ee7a ngo\u1ea1i l\u1ef1c \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng \u1ee9ng c\u1ee7a s\u1ea3n ph\u1ea9m. B\u1edfi v\u00ec qu\u00e1 tr\u00ecnh v\u1ebd th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf tr\u1ea1ng th\u00e1i l\u1ea1nh, qu\u00e1 tr\u00ecnh n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ea3n v\u1ebd ngu\u1ed9i ho\u1eb7c b\u1ea3n v\u1ebd ngu\u1ed9i \u201d.<\/p><\/div>","protected":false},"excerpt":{"rendered":"

Powder metallurgy is the technology of making metal powder or using metal powder (or mixture of metal powder and non-metal powder) as raw material, through forming, sintering, and manufacturing metal materials and various types of products. There are some similarities between powder metallurgy and ceramic production, which belong to powder sintering technology. Therefore, The metallurgy technology can…<\/p>","protected":false},"author":2,"featured_media":19480,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"class_list":["post-13789","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-weekly"],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/11\/1-3.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/13789","targetHints":{"allow":["GET"]}}],"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=13789"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/13789\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/19480"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=13789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=13789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=13789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}