{"id":47716,"date":"2023-04-22T00:02:04","date_gmt":"2023-04-22T05:02:04","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-piezoelectric-disc\/"},"modified":"2025-01-21T07:20:15","modified_gmt":"2025-01-21T12:20:15","slug":"how-to-make-piezoelectric-disc","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-piezoelectric-disc\/","title":{"rendered":"Ch\u1ebf t\u1ea1o \u0111\u0129a g\u1ed1m \u00e1p \u0111i\u1ec7n: H\u01b0\u1edbng d\u1eabn chi ti\u1ebft"},"content":{"rendered":"

Piezoelectric l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi b\u1ecb t\u00e1c \u0111\u1ed9ng b\u1edfi \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n \u00e1p th\u00e0nh rung \u0111\u1ed9ng c\u01a1 h\u1ecdc. \u0110\u0129a g\u1ed1m piezoelectric, v\u1edbi c\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u su\u1ea5t cao, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c t\u1eeb c\u1ea3m bi\u1ebfn \u0111\u1ebfn thi\u1ebft b\u1ecb t\u1ea1o s\u00f3ng si\u00eau \u00e2m. Qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o \u0111\u0129a piezoelectric \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd tr\u00ecnh b\u00e0y chi ti\u1ebft quy tr\u00ecnh ch\u1ebf t\u1ea1o \u0111\u0129a g\u1ed1m piezoelectric.<\/p>\n

Chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft b\u1ecb<\/h3>\n

B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 chu\u1ea9n b\u1ecb b\u1ed9t g\u1ed1m piezoelectric, th\u01b0\u1eddng l\u00e0 zirconate titanate ch\u00ec (PZT), v\u1edbi \u0111\u1ed9 tinh khi\u1ebft cao. C\u00e1c ch\u1ea5t ph\u1ee5 gia c\u0169ng \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u. B\u00ean c\u1ea1nh \u0111\u00f3, c\u1ea7n chu\u1ea9n b\u1ecb khu\u00f4n \u00e9p, m\u00e1y \u00e9p th\u1ee7y l\u1ef1c, l\u00f2 nung, m\u00e1y c\u1eaft v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng.<\/p>\n

Qu\u00e1 tr\u00ecnh tr\u1ed9n v\u00e0 nghi\u1ec1n<\/h3>\n

B\u1ed9t g\u1ed1m piezoelectric \u0111\u01b0\u1ee3c tr\u1ed9n \u0111\u1ec1u v\u1edbi c\u00e1c ch\u1ea5t ph\u1ee5 gia v\u00e0 dung m\u00f4i \u0111\u1ec3 t\u1ea1o th\u00e0nh h\u1ed7n h\u1ee3p \u0111\u1ed3ng nh\u1ea5t. H\u1ed7n h\u1ee3p n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c nghi\u1ec1n m\u1ecbn b\u1eb1ng m\u00e1y nghi\u1ec1n bi ho\u1eb7c m\u00e1y nghi\u1ec1n rung \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc h\u1ea1t mong mu\u1ed1n. K\u00edch th\u01b0\u1edbc h\u1ea1t \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u1eadt \u0111\u1ed9 v\u00e0 t\u00ednh ch\u1ea5t \u0111i\u1ec7n c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng.<\/p>\n

\u00c9p t\u1ea1o h\u00ecnh<\/h3>\n

H\u1ed7n h\u1ee3p b\u1ed9t sau khi nghi\u1ec1n \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o khu\u00f4n \u00e9p v\u00e0 n\u00e9n d\u01b0\u1edbi \u00e1p su\u1ea5t cao b\u1eb1ng m\u00e1y \u00e9p th\u1ee7y l\u1ef1c. \u00c1p su\u1ea5t \u00e9p \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1eadt \u0111\u1ed9 v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a \u0111\u0129a piezoelectric. Vi\u1ec7c ki\u1ec3m so\u00e1t \u00e1p su\u1ea5t v\u00e0 th\u1eddi gian \u00e9p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n

Nung k\u1ebft<\/h3>\n

\u0110\u0129a g\u1ed1m sau khi \u00e9p \u0111\u01b0\u1ee3c nung trong l\u00f2 nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao, th\u01b0\u1eddng t\u1eeb 1200\u00b0C \u0111\u1ebfn 1400\u00b0C. Qu\u00e1 tr\u00ecnh nung k\u1ebft gi\u00fap li\u00ean k\u1ebft c\u00e1c h\u1ea1t g\u1ed1m l\u1ea1i v\u1edbi nhau, t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac g\u1ed1m \u0111\u1eb7c ch\u1eafc v\u00e0 \u1ed5n \u0111\u1ecbnh. Vi\u1ec7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 v\u00e0 th\u1eddi gian nung l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u0129a piezoelectric.<\/p>\n

Gia c\u00f4ng v\u00e0 ho\u00e0n thi\u1ec7n<\/h3>\n

Sau khi nung k\u1ebft, \u0111\u0129a g\u1ed1m \u0111\u01b0\u1ee3c gia c\u00f4ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng cu\u1ed1i c\u00f9ng. C\u00e1c b\u01b0\u1edbc gia c\u00f4ng bao g\u1ed3m c\u1eaft, m\u00e0i, \u0111\u00e1nh b\u00f3ng. Cu\u1ed1i c\u00f9ng, c\u00e1c \u0111i\u1ec7n c\u1ef1c \u0111\u01b0\u1ee3c ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t \u0111\u0129a b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ph\u00fan ph\u1ee7 ho\u1eb7c in m\u00e0n h\u00ecnh.<\/p>\n

Ph\u00e2n c\u1ef1c<\/h3>\n

\u0110\u1ec3 \u0111\u0129a g\u1ed1m piezoelectric ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c, c\u1ea7n ph\u1ea3i ph\u00e2n c\u1ef1c n\u00f3 b\u1eb1ng c\u00e1ch \u0111\u1eb7t n\u00f3 trong m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng m\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Qu\u00e1 tr\u00ecnh ph\u00e2n c\u1ef1c n\u00e0y s\u1ebd s\u1eafp x\u1ebfp c\u00e1c l\u01b0\u1ee1ng c\u1ef1c b\u00ean trong v\u1eadt li\u1ec7u, t\u1ea1o ra hi\u1ec7u \u1ee9ng piezoelectric.<\/p>\n

Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n

Sau khi ph\u00e2n c\u1ef1c, \u0111\u0129a piezoelectric \u0111\u01b0\u1ee3c ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt. C\u00e1c th\u00f4ng s\u1ed1 \u0111\u01b0\u1ee3c ki\u1ec3m tra bao g\u1ed3m h\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i, h\u1ec7 s\u1ed1 gh\u00e9p \u0111i\u1ec7n c\u01a1, v\u00e0 t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng.<\/p>\n\n\n\n\n\n\n\n
Th\u00f4ng s\u1ed1<\/th>\nM\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
H\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i<\/td>\nKh\u1ea3 n\u0103ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n<\/td>\n<\/tr>\n
H\u1ec7 s\u1ed1 gh\u00e9p \u0111i\u1ec7n c\u01a1<\/td>\nHi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i gi\u1eefa n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n v\u00e0 c\u01a1<\/td>\n<\/tr>\n
T\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng<\/td>\nT\u1ea7n s\u1ed1 t\u1ea1i \u0111\u00f3 \u0111\u0129a dao \u0111\u1ed9ng m\u1ea1nh nh\u1ea5t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Vi\u1ec7c ch\u1ebf t\u1ea1o \u0111\u0129a g\u1ed1m piezoelectric \u0111\u00f2i h\u1ecfi s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n ph\u1ee9c t\u1ea1p, t\u1eeb chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u \u0111\u1ebfn ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng. Ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt trong t\u1eebng c\u00f4ng \u0111o\u1ea1n l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 t\u1ea1o ra s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u kh\u1eaft khe c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 cao. S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o s\u1ebd ti\u1ebfp t\u1ee5c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng c\u1ee7a \u0111\u0129a piezoelectric trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"

Piezoelectric l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi b\u1ecb t\u00e1c \u0111\u1ed9ng b\u1edfi \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n \u00e1p th\u00e0nh rung \u0111\u1ed9ng c\u01a1 h\u1ecdc. \u0110\u0129a g\u1ed1m piezoelectric, v\u1edbi c\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u su\u1ea5t cao, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u<\/p>\n","protected":false},"author":1,"featured_media":23764,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-47716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47716","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/comments?post=47716"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47716\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/23764"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=47716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=47716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=47716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}