{"id":19854,"date":"2024-12-14T09:21:00","date_gmt":"2024-12-14T01:21:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=19854"},"modified":"2025-01-14T15:02:56","modified_gmt":"2025-01-14T07:02:56","slug":"a4","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/a4\/","title":{"rendered":"Th\u00e9p c\u00f4ng c\u1ee5 A4 l\u00e0m c\u1ee9ng b\u1eb1ng kh\u00f4ng kh\u00ed: T\u00ednh ch\u1ea5t, X\u1eed l\u00fd nhi\u1ec7t, C\u00f4ng d\u1ee5ng"},"content":{"rendered":"

Th\u00e9p c\u00f4ng c\u1ee5 A4 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc tuy\u1ec7t v\u1eddi v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u1eeba ph\u1ea3i, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao nh\u01b0 khu\u00f4n, \u0111\u1ee5c v\u00e0 d\u1ee5ng c\u1ee5 c\u1eaft. SteelPro Group cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p A4 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang v\u00e0 gi\u1edbi thi\u1ec7u c\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh, x\u1eed l\u00fd nhi\u1ec7t v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng c\u1ee7a n\u00f3 trong b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 gi\u00fap b\u1ea1n.<\/p>

Th\u00e9p c\u00f4ng c\u1ee5 A4 l\u00e0 g\u00ec?<\/h2>

Th\u00e9p c\u00f4ng c\u1ee5 A4 l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 l\u00e0m ngu\u1ed9i, h\u1ee3p kim trung b\u00ecnh, t\u00f4i b\u1eb1ng kh\u00f4ng kh\u00ed, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo UNS T30104 v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ASTM A681 v\u00e0 FED QQ-T-570. \u0110\u00e2y l\u00e0 h\u1ee3p kim c\u00f3 h\u00e0m l\u01b0\u1ee3ng cacbon cao, mangan cao, crom v\u00e0 molypden, mang l\u1ea1i \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u01b0\u1ee3t tr\u1ed9i trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t. N\u00f3 ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng nh\u01b0 \u0111\u1ee5c, khu\u00f4n, khu\u00f4n m\u1eabu v\u00e0 d\u1ee5ng c\u1ee5 c\u1eaft.<\/p>

Th\u01b0\u1eddng \u0111\u01b0\u1ee3c cung c\u1ea5p \u1edf tr\u1ea1ng th\u00e1i \u1ee7 v\u1edbi \u0111\u1ed9 c\u1ee9ng d\u01b0\u1edbi 250 HB, th\u00e9p c\u00f4ng c\u1ee5 A4 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng \u0111\u1ebfn 28-34 HRc sau khi t\u00f4i d\u1ea7u v\u00e0 ram. Th\u00e9p c\u00f4ng c\u1ee5 A4 c\u1ee7a ch\u00fang t\u00f4i c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng, ch\u1eb3ng h\u1ea1n nh\u01b0 thanh tr\u00f2n, thanh ph\u1eb3ng, t\u1ea5m, thanh l\u1ee5c gi\u00e1c v\u00e0 kh\u1ed1i vu\u00f4ng. Ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p c\u00e1c k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh v\u00e0 thanh m\u00e0i ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n dung sai ch\u00ednh x\u00e1c.<\/p>

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A4 <\/h2>

Th\u00e9p c\u00f4ng c\u1ee5 A4 c\u00f3 th\u00e0nh ph\u1ea7n c\u00e2n b\u1eb1ng, v\u1edbi h\u00e0m l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 cacbon, crom v\u00e0 molypden, gi\u00fap t\u0103ng \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p.<\/p>

Y\u1ebfu t\u1ed1<\/strong><\/td>Th\u00e0nh ph\u1ea7n (%)<\/strong><\/td><\/tr>
Cacbon (C)<\/td>0.95 – 1.05<\/td><\/tr>
Crom (Cr)<\/td>0.90 – 2.2<\/td><\/tr>
S\u1eaft (Fe)<\/td>92.6 – 95.4<\/td><\/tr>
Mangan (Mn)<\/td>1.8 – 2.2<\/td><\/tr>
Molip\u0111en (Mo)<\/td>0.90 – 1.4<\/td><\/tr>
Ph\u1ed1t pho (P)<\/td>\u2264 0,030<\/td><\/tr>
Silic (Si)<\/td>\u2264 0,50<\/td><\/tr>
L\u01b0u hu\u1ef3nh (S)<\/td>\u2264 0,030<\/td><\/tr><\/tbody><\/table><\/figure>

Carbon l\u00e0m t\u0103ng \u0111\u1ed9 c\u1ee9ng, trong khi crom t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t m\u00e0i m\u00f2n. Molypden t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao, trong khi mangan t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 d\u1ebbo dai. <\/p>

T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A4 <\/h2>

Th\u00e9p c\u00f4ng c\u1ee5 A4 c\u00f3 \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 hi\u1ec7u su\u1ea5t m\u1ea1nh m\u1ebd khi ch\u1ecbu \u00e1p l\u1ef1c. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc ch\u00ednh c\u1ee7a n\u00f3.<\/p>

T\u00e0i s\u1ea3n<\/strong><\/td>H\u1ec7 m\u00e9t<\/strong><\/td>\u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr>
\u0110\u1ed9 c\u1ee9ng (HRC)<\/td>63<\/td>63<\/td><\/tr>
Kh\u1ea3 n\u0103ng gia c\u00f4ng<\/td>65%<\/td>65%<\/td><\/tr>
M\u00f4 \u0111un kh\u1ed1i<\/td>160 GPa<\/td>23.200 kil\u00f4gam<\/td><\/tr>
M\u00f4 \u0111un c\u1eaft<\/td>80,0 GPa<\/td>11.600 kil\u00f4gam<\/td><\/tr>
M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td>190 \u2013 210 GPa<\/td>27.557 \u2013 30.457 ksi<\/td><\/tr>
T\u1ef7 s\u1ed1 Poisson<\/td>0.27 – 0.30<\/td>0.27 – 0.30<\/td><\/tr><\/tbody><\/table><\/figure>

T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A4<\/h2>

M\u1eadt \u0111\u1ed9 cao c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A4 l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n, trong khi c\u00e1c \u0111\u1eb7c t\u00ednh nhi\u1ec7t v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y tr\u00ecnh b\u00e0y t\u1ed5ng quan v\u1ec1 c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd ch\u00ednh \u0111\u1ec3 b\u1ea1n tham kh\u1ea3o.<\/p>

T\u00e0i s\u1ea3n<\/strong><\/td>H\u1ec7 m\u00e9t<\/strong><\/td>\u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr>
T\u1ec9 tr\u1ecdng<\/td>8,03 g\/cc<\/td>0,290 lb\/in\u00b3<\/td><\/tr>
\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td>27,3 W\/m\u00b7K<\/td>18,8 BTU\u00b7in\/gi\u1edd\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr>
H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t (20\u2013100\u00b0C)<\/td>11,2 \u00d7 10\u207b\u2076 \/\u00b0C<\/td>6,2 \u00d7 10\u207b\u2076 \/\u00b0F<\/td><\/tr>
Nhi\u1ec7t dung ri\u00eang<\/td>460 J\/kg\u00b7K<\/td>0,110 BTU\/lb\u00b7\u00b0F<\/td><\/tr>
\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td>1.400 \u00b0C<\/td>2.552 \u00b0F<\/td><\/tr><\/tbody><\/table><\/figure>

Ch\u1ebf t\u1ea1o th\u00e9p c\u00f4ng c\u1ee5 A4 v\u00e0 x\u1eed l\u00fd nhi\u1ec7t<\/h2>

R\u00e8n<\/h3>

\u0110\u1ec3 r\u00e8n th\u00e9p c\u00f4ng c\u1ee5 A4, th\u00e9p ph\u1ea3i \u0111\u01b0\u1ee3c nung n\u00f3ng d\u1ea7n d\u1ea7n v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u1eeb 1.100\u20131.200\u00b0C (2.012\u20132.192\u00b0F). Sau qu\u00e1 tr\u00ecnh r\u00e8n, th\u00e9p ph\u1ea3i ngu\u1ed9i \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u0111\u1ec3 tr\u00e1nh n\u1ee9t do s\u1ed1c nhi\u1ec7t. V\u00ec th\u00e9p c\u00f4ng c\u1ee5 A4 c\u00f3 \u0111\u1ed9 b\u1ec1n nhi\u1ec7t t\u01b0\u01a1ng \u0111\u1ed1i cao, n\u00ean vi\u1ec7c \u0111\u1eadp ban \u0111\u1ea7u ph\u1ea3i nh\u1eb9 nh\u00e0ng \u0111\u1ec3 tr\u00e1nh \u1ee9ng su\u1ea5t qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 g\u00e2y bi\u1ebfn d\u1ea1ng ho\u1eb7c n\u1ee9t.<\/p>

\u1ee6<\/h3>

Th\u00e9p c\u00f4ng c\u1ee5 A4 ph\u1ea3i \u0111\u01b0\u1ee3c nung n\u00f3ng \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t l\u00e0 200\u00b0C (392\u00b0F) m\u1ed7i gi\u1edd cho \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u1ee7 l\u00e0 750\u2013780\u00b0C (1.382\u20131.436\u00b0F). \u0110\u1ed1i v\u1edbi m\u1ed7i \u0111\u1ed9 d\u00e0y 25,4mm (1in), h\u00e3y duy tr\u00ec th\u00e9p \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00e0y trong 1 gi\u1edd. <\/p>

Sau khi \u0111\u1ea1t \u0111\u1ebfn th\u1eddi gian ng\u00e2m c\u1ea7n thi\u1ebft, th\u00e9p ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i ch\u1eadm trong l\u00f2 \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 c\u1ee9ng v\u00e0 \u1ee9ng su\u1ea5t b\u00ean trong, \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng kho\u1ea3ng 255\u2013293 HB (Brinell).<\/p>

L\u00e0m c\u1ee9ng<\/h3>

L\u00e0m n\u00f3ng tr\u01b0\u1edbc<\/strong> l\u00e0 c\u1ea7n thi\u1ebft khi t\u00f4i th\u00e9p c\u00f4ng c\u1ee5 A4 \u0111\u1ec3 ng\u0103n ng\u1eeba s\u1ed1c nhi\u1ec7t v\u00e0 gi\u1ea3m thi\u1ec3u bi\u1ebfn d\u1ea1ng. L\u00e0m n\u00f3ng tr\u01b0\u1edbc th\u00e9p \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 700\u2013800\u00b0C (1.292\u20131.472\u00b0F) tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh austenit h\u00f3a. <\/p>

Austenit h\u00f3a<\/strong> n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 1.000\u20131.050\u00b0C (1.832\u20131.922\u00b0F), duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 trong 1 gi\u1edd cho m\u1ed7i 25,4mm (1in) \u0111\u1ed9 d\u00e0y. Sau khi \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 austenit h\u00f3a, th\u00e9p \u0111\u00e3 s\u1eb5n s\u00e0ng \u0111\u1ec3 t\u00f4i.<\/h4>

V\u00ec d\u1eadp t\u1eaft<\/strong>, Th\u00e9p c\u00f4ng c\u1ee5 A4 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t b\u1eb1ng d\u1ea7u ho\u1eb7c kh\u00f4ng kh\u00ed, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 c\u1ee9ng v\u00e0 \u1ee9ng d\u1ee5ng mong mu\u1ed1n. T\u00f4i n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 1.000\u20131.050\u00b0C (1.832\u20131.922\u00b0F) \u0111\u1ec3 c\u00f3 \u0111\u1ed9 c\u1ee9ng t\u1ed1i \u01b0u.<\/p>

L\u00e0m ngu\u1ed9i<\/h3>

Qu\u00e1 tr\u00ecnh t\u00f4i th\u00e9p c\u00f4ng c\u1ee5 A4 ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 550\u2013650\u00b0C (1.022\u20131.202\u00b0F). Sau khi ng\u00e2m \u0111\u1ec1u, nung th\u00e9p \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u00f4i m\u1ee5c ti\u00eau cho m\u1ed7i \u0111\u1ed9 d\u00e0y 25,4mm (1in) v\u00e0 duy tr\u00ec trong \u00edt nh\u1ea5t 1 gi\u1edd. <\/p>

Qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n gi\u00fap gi\u1ea3m \u0111\u1ed9 gi\u00f2n v\u00e0 t\u0103ng \u0111\u1ed9 d\u1ebbo dai. Sau khi t\u00f4i luy\u1ec7n, th\u00e9p s\u1ebd \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng t\u1eeb 40\u201345 HRC, d\u1ef1a tr\u00ean c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. B\u1ea3ng sau \u0111\u00e2y hi\u1ec3n th\u1ecb c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec1u nhi\u1ec7t \u0111\u1ed9 t\u00f4i luy\u1ec7n kh\u00e1c nhau khi t\u00f4i trong kh\u00f4ng kh\u00ed.<\/p>

Nhi\u1ec7t \u0111\u1ed9 (\u00b0C)<\/strong><\/td>Nhi\u1ec7t \u0111\u1ed9 (\u00b0F)<\/strong><\/td>\u0110\u1ed9 c\u1ee9ng (HRC)<\/strong><\/td><\/tr>
150\u00b0C<\/td>302\u00b0F<\/td>61<\/td><\/tr>
205\u00b0C<\/td>401\u00b0F<\/td>60<\/td><\/tr>
260\u00b0C<\/td>500\u00b0F<\/td>59<\/td><\/tr>
315\u00b0C<\/td>599\u00b0F<\/td>58<\/td><\/tr>
370\u00b0C<\/td>698\u00b0F<\/td>57<\/td><\/tr>
425\u00b0C<\/td>797\u00b0F<\/td>56<\/td><\/tr>
480\u00b0C<\/td>896\u00b0F<\/td>54<\/td><\/tr>
540\u00b0C<\/td>1004\u00b0F<\/td>53<\/td><\/tr>
595\u00b0C<\/td>1103\u00b0F<\/td>50<\/td><\/tr>
650\u00b0C<\/td>1202\u00b0F<\/td>40<\/td><\/tr><\/tbody><\/table><\/figure>

Bi\u1ec3u m\u1eabu s\u1ea3n ph\u1ea9m th\u00e9p c\u00f4ng c\u1ee5 A4<\/h2>

Th\u00e9p c\u00f4ng c\u1ee5 A4 c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, SteelPro Group cung c\u1ea5p c\u00e1c k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh v\u00e0 v\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao. \u0110\u1ed1i v\u1edbi c\u00e1c y\u00eau c\u1ea7u ngo\u00e0i ph\u1ea1m vi ti\u00eau chu\u1ea9n, ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y ph\u00e1c th\u1ea3o c\u00e1c d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc \u0111i\u1ec3n h\u00ecnh c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 A4.<\/p>

M\u1eabu s\u1ea3n ph\u1ea9m<\/strong><\/td>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc \u0111i\u1ec3n h\u00ecnh<\/strong><\/td>\u1ee8ng d\u1ee5ng<\/strong><\/td><\/tr>
Thanh k\u00e9o ngu\u1ed9i<\/td>\u0110\u01b0\u1eddng k\u00ednh t\u1eeb 10 mm \u0111\u1ebfn 100 mm (0,4 in \u0111\u1ebfn 4 in)<\/td>Gia c\u00f4ng ch\u00ednh x\u00e1c cho \u0111\u1ed3ng h\u1ed3 \u0111o, khu\u00f4n m\u1eabu v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn d\u1ee5ng c\u1ee5 nh\u1ecf<\/td><\/tr>
Thanh c\u00e1n n\u00f3ng<\/td>\u0110\u01b0\u1eddng k\u00ednh t\u1eeb 20 mm \u0111\u1ebfn 150 mm (0,8 in \u0111\u1ebfn 6 in)<\/td>\u1ee8ng d\u1ee5ng d\u1ee5ng c\u1ee5 l\u1edbn, bao g\u1ed3m khu\u00f4n v\u00e0 \u0111\u1ee5c<\/td><\/tr>
\u0110\u0129a<\/td>\u0110\u1ed9 d\u00e0y t\u1eeb 20 mm \u0111\u1ebfn 150 mm (0,8 in \u0111\u1ebfn 6 in), chi\u1ec1u r\u1ed9ng t\u1eeb 100 mm \u0111\u1ebfn 500 mm (4 in \u0111\u1ebfn 20 in)<\/td>Khu\u00f4n l\u1edbn, ph\u1eb3ng, d\u1ee5ng c\u1ee5 c\u1eaft v\u00e0 khu\u00f4n m\u1eabu<\/td><\/tr>
Thanh ph\u1eb3ng<\/td>\u0110\u1ed9 d\u00e0y t\u1eeb 10 mm \u0111\u1ebfn 100 mm (0,4 in \u0111\u1ebfn 4 in), chi\u1ec1u r\u1ed9ng t\u1eeb 50 mm \u0111\u1ebfn 300 mm (2 in \u0111\u1ebfn 12 in)<\/td>Khu\u00f4n nh\u1ecf, th\u01b0\u1edbc \u0111o v\u00e0 \u1ee9ng d\u1ee5ng c\u00f4ng c\u1ee5<\/td><\/tr>
Bi\u1ec3u m\u1eabu t\u00f9y ch\u1ec9nh<\/td>Ph\u00f9 h\u1ee3p v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a kh\u00e1ch h\u00e0ng<\/td>D\u1ee5ng c\u1ee5, khu\u00f4n m\u1eabu v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u1ee5 th\u1ec3 y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh<\/td><\/tr><\/tbody><\/table><\/figure>

\u1ee8ng d\u1ee5ng th\u00e9p c\u00f4ng c\u1ee5 A4<\/h2>

Th\u00e9p c\u00f4ng c\u1ee5 A4 k\u1ebft h\u1ee3p \u0111\u1ed9 b\u1ec1n t\u1ed1t, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u1eeba ph\u1ea3i v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc tuy\u1ec7t v\u1eddi trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t. \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc cao c\u1ee7a n\u00f3 l\u00e0m cho n\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c c\u00f4ng c\u1ee5 ch\u1ecbu t\u1ea3i tr\u1ecdng v\u1eeba ph\u1ea3i v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00e0i m\u00f2n. <\/p>

\u0110\u1ea5m v\u00e0 Ch\u1ebft:<\/h3>

\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9t d\u1eadp, \u0111\u1ed9t l\u1ed7 v\u00e0 t\u1ea1o h\u00ecnh, bao g\u1ed3m khu\u00f4n d\u1eadp, \u0111\u1ee5c c\u1eaft v\u00e0 d\u1ee5ng c\u1ee5 c\u1eaft trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 gia c\u00f4ng kim lo\u1ea1i v\u00e0 \u00f4 t\u00f4.<\/p>

D\u1ee5ng c\u1ee5 c\u1eaft:<\/h3>

\u0110\u01b0\u1ee3c s\u1ea3n xu\u1ea5t d\u01b0\u1edbi d\u1ea1ng l\u01b0\u1ee1i c\u1eaft, dao v\u00e0 m\u00e1y c\u1eaft quay, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu m\u00e0i m\u00f2n v\u1eeba ph\u1ea3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 gia c\u00f4ng kim lo\u1ea1i t\u1ea5m, t\u00e1i ch\u1ebf v\u00e0 nh\u1ef1a.<\/p>

Khu\u00f4n m\u1eabu:<\/h3>

\u0110\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong s\u1ea3n xu\u1ea5t khu\u00f4n m\u1eabu cho \u00e9p phun nh\u1ef1a, \u0111\u00fac khu\u00f4n v\u00e0 \u00e9p n\u00e9n, bao g\u1ed3m khu\u00f4n m\u1eabu cho ph\u1ee5 t\u00f9ng \u00f4 t\u00f4, v\u1ecf thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf.<\/p>

\u0110\u1ed3ng h\u1ed3 \u0111o v\u00e0 \u0111\u1ed3 g\u00e1:<\/h3>

\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 \u0111\u1ed3 g\u00e1 \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed3ng h\u1ed3 \u0111o hi\u1ec7u chu\u1ea9n, \u0111\u1ed3 g\u00e1 ki\u1ec3m tra v\u00e0 d\u1ee5ng c\u1ee5 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng trong l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/p>

C\u00e1c th\u00e0nh ph\u1ea7n m\u00e1y nh\u1ecf:<\/h3>

\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y nh\u01b0 \u1ed1ng l\u00f3t, \u1ed1ng l\u00f3t v\u00e0 t\u1ea5m ch\u1ecbu m\u00e0i m\u00f2n, th\u01b0\u1eddng th\u1ea5y trong m\u00e1y m\u00f3c v\u00e0 thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc.<\/p>

D\u1ee5ng c\u1ee5 cho khu\u00f4n \u00e9p nh\u1ef1a:<\/h3>

\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c t\u1ea1o khu\u00f4n, mi\u1ebfng ch\u00e8n v\u00e0 d\u1ee5ng c\u1ee5 cho c\u00e1c \u1ee9ng d\u1ee5ng \u00e9p phun nh\u1ef1a, bao g\u1ed3m d\u1ee5ng c\u1ee5 cho h\u00e0ng ti\u00eau d\u00f9ng, \u0111\u1ed3 \u0111i\u1ec7n t\u1eed v\u00e0 ph\u1ee5 t\u00f9ng \u00f4 t\u00f4.<\/p>

C\u00f4ng c\u1ee5 t\u1ea1o h\u00ecnh:<\/h3>

\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c c\u00f4ng c\u1ee5 t\u1ea1o h\u00ecnh nh\u01b0 khu\u00f4n \u0111\u00f9n, c\u00f4ng c\u1ee5 u\u1ed1n v\u00e0 khu\u00f4n r\u00e8n, th\u01b0\u1eddng d\u00f9ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng.<\/p>

Gi\u1ea3i ph\u00e1p ch\u00ednh x\u00e1c cho m\u1ecdi nhu c\u1ea7u A4<\/h2>

T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i cung c\u1ea5p th\u00e9p c\u00f4ng c\u1ee5 A4 \u1edf nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau\u2014thanh k\u00e9o ngu\u1ed9i, thanh c\u00e1n n\u00f3ng, t\u1ea5m v\u00e0 k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh\u2014\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c c\u1ee7a b\u1ea1n. C\u00e1c thanh m\u00e0i ch\u00ednh x\u00e1c v\u00e0 ti\u00eau chu\u1ea9n dung sai nghi\u00eam ng\u1eb7t c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng c\u1ee7a b\u1ea1n. Ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p c\u00f4ng c\u1ee5 kh\u00e1c nh\u01b0 T1<\/a> V\u00e0 Th\u00e9p H13<\/a>.<\/p>

T\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u1ebfn h\u01b0\u1edbng d\u1eabn x\u1eed l\u00fd nhi\u1ec7t, ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o vi\u1ec7c mang l\u1ea1i \u0111\u1ed9 tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 cho c\u00e1c d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n. Th\u00e0nh c\u00f4ng c\u1ee7a b\u1ea1n l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u c\u1ee7a ch\u00fang t\u00f4i.<\/p>

<\/p>","protected":false},"excerpt":{"rendered":"

Th\u00e9p c\u00f4ng c\u1ee5 A4 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc tuy\u1ec7t v\u1eddi v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u1eeba ph\u1ea3i, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao [\u2026]<\/p>","protected":false},"author":12,"featured_media":19842,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4294,4293],"tags":[],"class_list":["post-19854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grades-tool-steel","category-tool-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/19854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=19854"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/19854\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/19842"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=19854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=19854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=19854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}