{"id":7469,"date":"2019-08-28T04:10:26","date_gmt":"2019-08-28T04:10:26","guid":{"rendered":"https:\/\/phelieu247.com\/?p=7469"},"modified":"2020-02-20T14:57:04","modified_gmt":"2020-02-20T07:57:04","slug":"kim-loai-dong-thau","status":"publish","type":"post","link":"https:\/\/phelieu247.com\/en\/kim-loai-dong-thau\/","title":{"rendered":"T\u00ecm Hi\u1ec3u V\u1ec1 C\u00e1c T\u00ednh Ch\u1ea5t V\u00e0 C\u00f4ng D\u1ee5ng C\u1ee7a Kim Lo\u1ea1i \u0110\u1ed3ng Thau"},"content":{"rendered":"

Sorry, this entry is only available in Ti\u1ebfng Vi\u1ec7t<\/a>. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language.<\/p>

<\/p>\n

Kim lo\u1ea1i \u0111\u1ed3ng thau ch\u00ednh x\u00e1c l\u00e0 m\u1ed9t h\u1ee3p kim nh\u1ecb ph\u00e2n bao g\u1ed3m \u0111\u1ed3ng v\u00e0 k\u1ebdm \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t trong nhi\u1ec1u thi\u00ean ni\u00ean k\u1ef7 v\u00e0 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u1ec1 kh\u1ea3 n\u0103ng l\u00e0m vi\u1ec7c, \u0111\u1ed9 c\u1ee9ng, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 v\u1ebb ngo\u00e0i h\u1ea5p d\u1eabn.<\/p>\n

\"T\u00ecm<\/p>\n

T\u00ednh Ch\u1ea5t C\u1ee7a Kim Lo\u1ea1i \u0110\u1ed3ng Thau<\/strong><\/h2>\n

+ Lo\u1ea1i h\u1ee3p kim: Nh\u1ecb ph\u00e2n<\/p>\n

+ N\u1ed9i dung: \u0110\u1ed3ng & K\u1ebdm<\/p>\n

+ M\u1eadt \u0111\u1ed9: 8,3-8,7 g \/ cm\u00a03<\/sup><\/p>\n

+ \u0110i\u1ec3m n\u00f3ng ch\u1ea3y: 1652-1724 \u00b0 F (900-940 \u00b0 C)<\/p>\n

+ \u0110\u1ed9 c\u1ee9ng c\u1ee7a Moh: 3-4<\/p>\n

\u0110\u1eb7c \u0110i\u1ec3m C\u1ee7a Kim Lo\u1ea1i \u0110\u1ed3ng Thau<\/strong><\/h2>\n

C\u00e1c t\u00ednh ch\u1ea5t ch\u00ednh x\u00e1c c\u1ee7a \u0111\u1ed3ng thau<\/strong><\/a> kh\u00e1c nhau ph\u1ee5 thu\u1ed9c v\u00e0o th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ee3p kim \u0111\u1ed3ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u1ef7 l\u1ec7 \u0111\u1ed3ng-k\u1ebdm. Tuy nhi\u00ean, n\u00f3i chung, t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1ed3ng thau \u0111\u1ec1u c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 kh\u1ea3 n\u0103ng gia c\u00f4ng ho\u1eb7c d\u1ec5 d\u00e0ng t\u1ea1o ra kim lo\u1ea1i th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng v\u00e0 h\u00ecnh d\u1ea1ng mong mu\u1ed1n trong khi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n cao.<\/p>\n

M\u1eb7c d\u00f9 c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c \u0111\u1ed3ng thau c\u00f3 h\u00e0m l\u01b0\u1ee3ng k\u1ebdm cao v\u00e0 th\u1ea5p, t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1ed3ng thau \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ec1m, d\u1ec5 k\u00e9o gi\u00e3n\u00a0v\u00e0\u00a0d\u1ec5 u\u1ed1n\u00a0(\u0111\u1ed3ng thau k\u1ebdm th\u1ea5p h\u01a1n nh\u01b0 v\u1eady).\u00a0Do \u0111i\u1ec3m n\u00f3ng ch\u1ea3y th\u1ea5p, \u0111\u1ed3ng thau c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00fac t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 d\u00e0ng.\u00a0Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00fac, h\u00e0m l\u01b0\u1ee3ng k\u1ebdm cao th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0a th\u00edch.<\/p>\n

\"\u0110\u1eb7c<\/p>\n

\u0110\u1ed3ng thau c\u00f3 h\u00e0m l\u01b0\u1ee3ng k\u1ebdm th\u1ea5p h\u01a1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng gia c\u00f4ng ngu\u1ed9i, h\u00e0n v\u00e0 h\u00e0n.\u00a0H\u00e0m l\u01b0\u1ee3ng \u0111\u1ed3ng cao c\u0169ng cho ph\u00e9p kim lo\u1ea1i h\u00ecnh th\u00e0nh l\u1edbp oxit b\u1ea3o v\u1ec7 (patina) tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n h\u01a1n n\u1eefa, m\u1ed9t t\u00ednh ch\u1ea5t c\u00f3 gi\u00e1 tr\u1ecb trong c\u00e1c \u1ee9ng d\u1ee5ng l\u00e0m cho kim lo\u1ea1i b\u1ecb \u1ea9m v\u00e0 phong h\u00f3a.<\/p>\n

Kim lo\u1ea1i c\u00f3 c\u1ea3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t v\u00e0\u00a0d\u1eabn \u0111i\u1ec7n t\u1ed1t\u00a0(\u0111\u1ed9 d\u1eabn \u0111i\u1ec7n\u00a0c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 t\u1eeb 23% \u0111\u1ebfn 44% so v\u1edbi \u0111\u1ed3ng nguy\u00ean ch\u1ea5t), v\u00e0 n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 tia l\u1eeda.\u00a0Gi\u1ed1ng nh\u01b0 \u0111\u1ed3ng, t\u00ednh ch\u1ea5t k\u00ecm khu\u1ea9n c\u1ee7a n\u00f3 \u0111\u00e3 d\u1eabn \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 trong \u0111\u1ed3 \u0111\u1ea1c trong ph\u00f2ng t\u1eafm v\u00e0 c\u00e1c c\u01a1 s\u1edf ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe.<\/p>\n

\u0110\u1ed3ng thau \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t h\u1ee3p kim ma s\u00e1t th\u1ea5p v\u00e0 kh\u00f4ng t\u1eeb t\u00ednh, trong khi t\u00ednh ch\u1ea5t \u00e2m h\u1ecdc c\u1ee7a n\u00f3 \u0111\u00e3 d\u1eabn \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 trong nhi\u1ec1u nh\u1ea1c c\u1ee5 c\u1ee7a ‘d\u1ea3i \u0111\u1ed3ng’.\u00a0C\u00e1c ngh\u1ec7 s\u0129 v\u00e0 ki\u1ebfn \u200b\u200btr\u00fac s\u01b0 \u0111\u00e1nh gi\u00e1 cao t\u00ednh ch\u1ea5t th\u1ea9m m\u1ef9 c\u1ee7a kim lo\u1ea1i, v\u00ec n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t trong m\u1ed9t lo\u1ea1t c\u00e1c m\u00e0u s\u1eafc, t\u1eeb \u0111\u1ecf \u0111\u1eadm \u0111\u1ebfn v\u00e0ng v\u00e0ng.<\/p>\n

C\u00e1c \u1ee8ng D\u1ee5ng C\u1ee7a \u0110\u1ed3ng Thau Trong \u0110\u1eddi S\u1ed1ng<\/strong><\/h2>\n

“\u0110\u1ed3ng thau” l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung \u0111\u1ec3 ch\u1ec9 m\u1ed9t lo\u1ea1t c\u00e1c h\u1ee3p kim \u0111\u1ed3ng – k\u1ebdm. Tr\u00ean th\u1ef1c t\u1ebf, c\u00f3 h\u01a1n 60 lo\u1ea1i \u0111\u1ed3ng thau kh\u00e1c nhau \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh theo Ti\u00eau chu\u1ea9n EN (Ti\u00eau chu\u1ea9n Ch\u00e2u \u00c2u). C\u00e1c h\u1ee3p kim n\u00e0y c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t lo\u1ea1t c\u00e1c ch\u1ebf ph\u1ea9m kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c thu\u1ed9c t\u00ednh c\u1ea7n thi\u1ebft cho m\u1ed9t \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n

C\u00e1c \u0111\u1eb7c t\u00ednh c\u00f3 gi\u00e1 tr\u1ecb c\u1ee7a \u0111\u1ed3ng thau v\u00e0 t\u00ednh d\u1ec5 s\u1ea3n xu\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u00e3 l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng h\u1ee3p kim \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t. Th\u1eadm ch\u00ed, \u0111\u1ed3ng thau l\u00e0 1 trong 7 kim lo\u1ea1i c\u00f3 gi\u00e1 tr\u1ecb cao nh\u1ea5t khi thu mua ph\u1ebf li\u1ec7u<\/strong>.<\/p>\n\n\n\n\n
\"C\u00e1c<\/td>\n\n

T\u1ed5ng h\u1ee3p m\u1ed9t danh s\u00e1ch \u0111\u1ea7y \u0111\u1ee7 t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a \u0111\u1ed3ng thau s\u1ebd l\u00e0 m\u1ed9t danh s\u00e1ch d\u00e0i d\u1eb1ng d\u1eb7c. Nh\u01b0ng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u00fd t\u01b0\u1edfng v\u1ec1 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m m\u00e0 \u0111\u1ed3ng thau \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y, ch\u00fang ta c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i v\u00e0 t\u00f3m t\u1eaft m\u1ed9t s\u1ed1 c\u00e1c ph\u1ee5 ki\u1ec7n s\u1eed d\u1ee5ng \u0111\u1ed3ng thau:<\/p>\n

 <\/p>\n

+ C\u00e1c lo\u1ea1i h\u1ea1t, bu l\u00f4ng, c\u00e1c b\u1ed9 ph\u1eadn ren<\/p>\n

+ Thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i<\/p>\n

+ M\u00e1y bay ph\u1ea3n l\u1ef1c<\/p>\n

+ V\u00f2i<\/p>\n

+ V\u00f2i phun<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

L\u1ecbch S\u1eed C\u1ee7a Kim Lo\u1ea1i \u0110\u1ed3ng Thau<\/strong><\/h2>\n

H\u1ee3p kim \u0111\u1ed3ng thau<\/strong><\/a> (\u0111\u1ed3ng – k\u1ebdm) \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t s\u1edbm nh\u1ea5t l\u00e0 v\u00e0o th\u1ebf k\u1ef7 th\u1ee9 5 tr\u01b0\u1edbc C\u00f4ng nguy\u00ean t\u1ea1i Trung Qu\u1ed1c v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u1edf Trung \u00c1 v\u00e0o th\u1ebf k\u1ef7 th\u1ee9 2 v\u00e0 th\u1ee9 3 tr\u01b0\u1edbc C\u00f4ng nguy\u00ean. Tuy nhi\u00ean, nh\u1eefng m\u1ea3nh kim lo\u1ea1i trang tr\u00ed n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 “h\u1ee3p kim t\u1ef1 nhi\u00ean”, v\u00ec kh\u00f4ng c\u00f3 b\u1eb1ng ch\u1ee9ng n\u00e0o cho th\u1ea5y c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ee7a h\u1ecd c\u00f3 \u00fd th\u1ee9c h\u1ee3p kim \u0111\u1ed3ng v\u00e0 k\u1ebdm. Thay v\u00e0o \u0111\u00f3, c\u00f3 kh\u1ea3 n\u0103ng c\u00e1c h\u1ee3p kim \u0111\u01b0\u1ee3c n\u1ea5u ch\u1ea3y t\u1eeb qu\u1eb7ng \u0111\u1ed3ng gi\u00e0u k\u1ebdm, t\u1ea1o ra c\u00e1c kim lo\u1ea1i th\u00f4 gi\u1ed1ng nh\u01b0 \u0111\u1ed3ng thau.<\/p>\n

C\u00e1c t\u00e0i li\u1ec7u c\u1ee7a Hy L\u1ea1p v\u00e0 La M\u00e3 cho r\u1eb1ng vi\u1ec7c s\u1ea3n xu\u1ea5t c\u00e1c h\u1ee3p kim c\u00f3 ch\u1ee7 \u00fd t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111\u1ed3ng thau hi\u1ec7n \u0111\u1ea1i,\u00a0s\u1eed d\u1ee5ng \u0111\u1ed3ng\u00a0v\u00e0 qu\u1eb7ng gi\u00e0u oxit k\u1ebdm \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 calamine, x\u1ea3y ra v\u00e0o kho\u1ea3ng th\u1ebf k\u1ef7 1 tr\u01b0\u1edbc C\u00f4ng nguy\u00ean.\u00a0\u0110\u1ed3ng thau Calamine \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng quy tr\u00ecnh xi m\u0103ng, theo \u0111\u00f3 \u0111\u1ed3ng \u0111\u01b0\u1ee3c n\u1ea5u ch\u1ea3y trong n\u1ed3i n\u1ea5u v\u1edbi qu\u1eb7ng smithsonite (ho\u1eb7c calamine) nghi\u1ec1n.<\/p>\n

\"L\u1ecbch<\/p>\n

\u1ede nhi\u1ec7t \u0111\u1ed9 cao, k\u1ebdm c\u00f3 trong qu\u1eb7ng nh\u01b0 v\u1eady bi\u1ebfn th\u00e0nh h\u01a1i v\u00e0 th\u1ea5m v\u00e0o \u0111\u1ed3ng, do \u0111\u00f3 t\u1ea1o ra \u0111\u1ed3ng thau t\u01b0\u01a1ng \u0111\u1ed1i tinh khi\u1ebft v\u1edbi h\u00e0m l\u01b0\u1ee3ng k\u1ebdm 17-30%.\u00a0Ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t \u0111\u1ed3ng thau n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong g\u1ea7n 2000 n\u0103m cho \u0111\u1ebfn \u0111\u1ea7u th\u1ebf k\u1ef7 19.\u00a0Kh\u00f4ng l\u00e2u sau khi ng\u01b0\u1eddi La M\u00e3 \u0111\u00e3 ph\u00e1t hi\u1ec7n ra c\u00e1ch s\u1ea3n xu\u1ea5t \u0111\u1ed3ng thau, h\u1ee3p kim n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00fac ti\u1ec1n \u1edf c\u00e1c khu v\u1ef1c c\u1ee7a Th\u1ed5 Nh\u0129 K\u1ef3 hi\u1ec7n \u0111\u1ea1i.\u00a0\u0110i\u1ec1u n\u00e0y s\u1edbm lan r\u1ed9ng kh\u1eafp \u0110\u1ebf qu\u1ed1c La M\u00e3.<\/p>\n

S\u1ea3n Xu\u1ea5t \u0110\u1ed3ng Thau Nh\u01b0 Th\u1ebf N\u00e0o?<\/strong><\/h2>\n

\u0110\u1ed3ng thau th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb \u200b\u200bph\u1ebf li\u1ec7u \u0111\u1ed3ng v\u00e0 th\u1ecfi k\u1ebdm.\u00a0\u0110\u1ed3ng ph\u1ebf li\u1ec7u<\/strong><\/a> \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean t\u1ea1p ch\u1ea5t c\u1ee7a n\u00f3, v\u00ec m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 b\u1ed5 sung \u0111\u01b0\u1ee3c mong mu\u1ed1n \u0111\u1ec3 t\u1ea1o ra lo\u1ea1i \u0111\u1ed3ng thau ch\u00ednh x\u00e1c c\u1ea7n thi\u1ebft.<\/p>\n

V\u00ec k\u1ebdm b\u1eaft \u0111\u1ea7u s\u00f4i v\u00e0 b\u1ed1c h\u01a1i \u1edf 1665 \u00b0 F (907 \u00b0 C), d\u01b0\u1edbi \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a \u0111\u1ed3ng 1981 \u00b0 F (1083 \u00b0 C), tr\u01b0\u1edbc ti\u00ean \u0111\u1ed3ng ph\u1ea3i \u0111\u01b0\u1ee3c n\u1ea5u ch\u1ea3y.\u00a0Sau khi tan ch\u1ea3y, k\u1ebdm \u0111\u01b0\u1ee3c th\u00eam v\u00e0o theo t\u1ef7 l\u1ec7 ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i \u0111\u1ed3ng thau \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t.\u00a0Trong khi m\u1ed9t s\u1ed1 ph\u1ee5 c\u1ea5p v\u1eabn \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n cho m\u1ea5t k\u1ebdm \u0111\u1ec3 h\u00f3a h\u01a1i.<\/p>\n\n\n\n
\"S\u1ea3n<\/td>\n\n

T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, b\u1ea5t k\u1ef3 kim lo\u1ea1i b\u1ed5 sung n\u00e0o kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0\u00a0ch\u00ec\u00a0, nh\u00f4m, silicon ho\u1eb7c asen, \u0111\u01b0\u1ee3c th\u00eam v\u00e0o h\u1ed7n h\u1ee3p \u0111\u1ec3 t\u1ea1o ra h\u1ee3p kim mong mu\u1ed1n.\u00a0Sau khi h\u1ee3p kim n\u00f3ng ch\u1ea3y \u0111\u00e3 s\u1eb5n s\u00e0ng, n\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u00e0o c\u00e1c khu\u00f4n n\u01a1i n\u00f3 \u0111\u00f4ng c\u1ee9ng th\u00e0nh c\u00e1c t\u1ea5m ho\u1eb7c ph\u00f4i l\u1edbn.\u00a0Ph\u00f4i – th\u01b0\u1eddng l\u00e0 \u0111\u1ed3ng thau alpha-beta – c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u1ef1c ti\u1ebfp th\u00e0nh d\u00e2y, \u1ed1ng v\u00e0 \u1ed1ng th\u00f4ng qua qu\u00e1 tr\u00ecnh \u00e9p n\u00f3ng, bao g\u1ed3m \u0111\u1ea9y kim lo\u1ea1i n\u00f3ng qua khu\u00f4n ho\u1eb7c r\u00e8n n\u00f3ng.<\/p>\n

 <\/p>\n

N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c \u00e9p \u0111\u00f9n ho\u1eb7c r\u00e8n, c\u00e1c ph\u00f4i sau \u0111\u00f3 \u0111\u01b0\u1ee3c h\u00e2m n\u00f3ng v\u00e0 cho \u0103n qua c\u00e1c con l\u0103n th\u00e9p (m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1n n\u00f3ng).\u00a0K\u1ebft qu\u1ea3 l\u00e0 c\u00e1c t\u1ea5m c\u00f3 \u0111\u1ed9 d\u00e0y d\u01b0\u1edbi n\u1eeda inch (<13mm).\u00a0Sau khi l\u00e0m m\u00e1t, \u0111\u1ed3ng thau sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111\u01b0a qua m\u00e1y phay, ho\u1eb7c dao m\u1ed5, c\u1eaft m\u1ed9t l\u1edbp m\u1ecfng t\u1eeb kim lo\u1ea1i \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c khuy\u1ebft t\u1eadt \u0111\u00fac b\u1ec1 m\u1eb7t v\u00e0 oxit.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Trong m\u00f4i tr\u01b0\u1eddng kh\u00ed \u0111\u1ec3 ng\u0103n qu\u00e1 tr\u00ecnh oxy h\u00f3a, h\u1ee3p kim \u0111\u01b0\u1ee3c nung n\u00f3ng v\u00e0 c\u00e1n l\u1ea1i, m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u1ee7, tr\u01b0\u1edbc khi n\u00f3 \u0111\u01b0\u1ee3c c\u00e1n l\u1ea1i \u1edf nhi\u1ec7t \u0111\u1ed9 l\u1ea1nh (c\u00e1n ngu\u1ed9i) th\u00e0nh c\u00e1c t\u1ea5m d\u00e0y kho\u1ea3ng 0,1 “(2,5mm). l\u00e0m bi\u1ebfn d\u1ea1ng c\u1ea5u tr\u00fac h\u1ea1t b\u00ean trong c\u1ee7a \u0111\u1ed3ng thau, d\u1eabn \u0111\u1ebfn kim lo\u1ea1i m\u1ea1nh h\u01a1n v\u00e0 c\u1ee9ng h\u01a1n. B\u01b0\u1edbc n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i cho \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u00e0y ho\u1eb7c \u0111\u1ed9 c\u1ee9ng mong mu\u1ed1n.<\/p>\n

Cu\u1ed1i c\u00f9ng, c\u00e1c t\u1ea5m \u0111\u01b0\u1ee3c c\u01b0a v\u00e0 c\u1eaft \u0111\u1ec3 t\u1ea1o ra chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u d\u00e0i c\u1ea7n thi\u1ebft.\u00a0T\u1ea5t c\u1ea3 c\u00e1c t\u1ea5m, v\u1eadt li\u1ec7u \u0111\u00fac, r\u00e8n v\u00e0 \u00e9p \u0111\u00f9n \u0111\u01b0\u1ee3c cho v\u00e0o b\u1ec3 h\u00f3a ch\u1ea5t, th\u00f4ng th\u01b0\u1eddng, m\u1ed9t lo\u1ea1i \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng axit clohydric v\u00e0 axit sunfuric, \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u1eb7n oxit \u0111\u1ed3ng \u0111en v\u00e0 x\u1ec9n m\u00e0u.<\/p>\n

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\n <\/span>\n <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Sorry, this entry is only available in Ti\u1ebfng Vi\u1ec7t. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. Kim lo\u1ea1i \u0111\u1ed3ng thau ch\u00ednh x\u00e1c l\u00e0 m\u1ed9t h\u1ee3p kim nh\u1ecb ph\u00e2n bao g\u1ed3m \u0111\u1ed3ng v\u00e0 k\u1ebdm \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t … Continue reading T\u00ecm Hi\u1ec3u V\u1ec1 C\u00e1c T\u00ednh Ch\u1ea5t V\u00e0 C\u00f4ng D\u1ee5ng C\u1ee7a Kim Lo\u1ea1i \u0110\u1ed3ng Thau<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":7476,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7469","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/posts\/7469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/comments?post=7469"}],"version-history":[{"count":1,"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/posts\/7469\/revisions"}],"predecessor-version":[{"id":8275,"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/posts\/7469\/revisions\/8275"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/media\/7476"}],"wp:attachment":[{"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/media?parent=7469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/categories?post=7469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phelieu247.com\/en\/wp-json\/wp\/v2\/tags?post=7469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}