{"id":50100,"date":"2023-04-21T15:21:57","date_gmt":"2023-04-21T20:21:57","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-clean-coins\/"},"modified":"2025-01-21T07:14:16","modified_gmt":"2025-01-21T12:14:16","slug":"how-to-clean-coins","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-clean-coins\/","title":{"rendered":"L\u00e0m s\u1ea1ch ti\u1ec1n xu: B\u00ed quy\u1ebft v\u00e0 l\u01b0u \u00fd quan tr\u1ecdng"},"content":{"rendered":"<p>Vi\u1ec7c l\u00e0m s\u1ea1ch ti\u1ec1n xu kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea3o qu\u1ea3n gi\u00e1 tr\u1ecb l\u1ecbch s\u1eed v\u00e0 th\u1ea9m m\u1ef9 c\u1ee7a ch\u00fang m\u00e0 c\u00f2n l\u00e0 m\u1ed9t th\u00fa vui tao nh\u00e3 \u0111\u1ed1i v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi. Tuy nhi\u00ean, vi\u1ec7c l\u00e0m s\u1ea1ch kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ea1i v\u0129nh vi\u1ec5n cho ti\u1ec1n xu, l\u00e0m m\u1ea5t \u0111i gi\u00e1 tr\u1ecb v\u1ed1n c\u00f3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch l\u00e0m s\u1ea1ch ti\u1ec1n xu m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<h3>X\u00e1c \u0111\u1ecbnh ch\u1ea5t li\u1ec7u ti\u1ec1n xu<\/h3>\n<p>Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u l\u00e0m s\u1ea1ch, vi\u1ec7c x\u00e1c \u0111\u1ecbnh ch\u1ea5t li\u1ec7u ti\u1ec1n xu l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. C\u00e1c ch\u1ea5t li\u1ec7u kh\u00e1c nhau \u0111\u00f2i h\u1ecfi ph\u01b0\u01a1ng ph\u00e1p l\u00e0m s\u1ea1ch kh\u00e1c nhau. Ti\u1ec1n xu th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb \u0111\u1ed3ng, b\u1ea1c, v\u00e0ng, ho\u1eb7c h\u1ee3p kim c\u1ee7a ch\u00fang.  Quan s\u00e1t m\u00e0u s\u1eafc, tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 b\u1ea5t k\u1ef3 d\u1ea5u hi\u1ec7u \u0111\u1eb7c bi\u1ec7t n\u00e0o tr\u00ean ti\u1ec1n xu \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u1ea5t li\u1ec7u.<\/p>\n<h3>L\u00e0m s\u1ea1ch ti\u1ec1n xu b\u1eb1ng x\u00e0 ph\u00f2ng v\u00e0 n\u01b0\u1edbc<\/h3>\n<p>\u0110\u1ed1i v\u1edbi ti\u1ec1n xu b\u1ecb b\u00e1m b\u1ee5i b\u1ea9n nh\u1eb9, ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n nh\u1ea5t l\u00e0 s\u1eed d\u1ee5ng x\u00e0 ph\u00f2ng v\u00e0 n\u01b0\u1edbc.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Ch\u1ea5t li\u1ec7u ti\u1ec1n xu<\/th>\n<th>Lo\u1ea1i x\u00e0 ph\u00f2ng<\/th>\n<th>L\u01b0u \u00fd<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u1ed3ng<\/td>\n<td>X\u00e0 ph\u00f2ng d\u1ecbu nh\u1eb9<\/td>\n<td>Tr\u00e1nh ch\u00e0 x\u00e1t m\u1ea1nh<\/td>\n<\/tr>\n<tr>\n<td>B\u1ea1c<\/td>\n<td>X\u00e0 ph\u00f2ng d\u00e0nh cho \u0111\u1ed3 b\u1ea1c<\/td>\n<td>R\u1eeda s\u1ea1ch k\u1ef9 sau khi l\u00e0m s\u1ea1ch<\/td>\n<\/tr>\n<tr>\n<td>V\u00e0ng<\/td>\n<td>X\u00e0 ph\u00f2ng d\u1ecbu nh\u1eb9<\/td>\n<td>Lau kh\u00f4 ngay sau khi r\u1eeda<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pha lo\u00e3ng x\u00e0 ph\u00f2ng v\u1edbi n\u01b0\u1edbc \u1ea5m, sau \u0111\u00f3 ng\u00e2m ti\u1ec1n xu trong dung d\u1ecbch kho\u1ea3ng 5-10 ph\u00fat. D\u00f9ng b\u00e0n ch\u1ea3i l\u00f4ng m\u1ec1m ch\u00e0 nh\u1eb9 l\u00ean b\u1ec1 m\u1eb7t ti\u1ec1n xu.  R\u1eeda s\u1ea1ch ti\u1ec1n xu b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch v\u00e0 lau kh\u00f4 ngay l\u1eadp t\u1ee9c b\u1eb1ng kh\u0103n m\u1ec1m.<\/p>\n<h3>L\u00e0m s\u1ea1ch ti\u1ec1n xu b\u1eb1ng dung d\u1ecbch baking soda<\/h3>\n<p>Baking soda l\u00e0 m\u1ed9t ch\u1ea5t t\u1ea9y r\u1eeda t\u1ef1 nhi\u00ean an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.  Tr\u1ed9n baking soda v\u1edbi n\u01b0\u1edbc t\u1ea1o th\u00e0nh h\u1ed7n h\u1ee3p s\u1ec7t. Thoa h\u1ed7n h\u1ee3p l\u00ean ti\u1ec1n xu v\u00e0 \u0111\u1ec3 trong kho\u1ea3ng 15-20 ph\u00fat.  D\u00f9ng b\u00e0n ch\u1ea3i l\u00f4ng m\u1ec1m ch\u00e0 nh\u1eb9 l\u00ean b\u1ec1 m\u1eb7t ti\u1ec1n xu, sau \u0111\u00f3 r\u1eeda s\u1ea1ch v\u00e0 lau kh\u00f4.<\/p>\n<h3>L\u00e0m s\u1ea1ch ti\u1ec1n xu b\u1eb1ng gi\u1ea5m<\/h3>\n<p>Gi\u1ea5m tr\u1eafng c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m s\u1ea1ch ti\u1ec1n xu, \u0111\u1eb7c bi\u1ec7t l\u00e0 ti\u1ec1n xu b\u1eb1ng \u0111\u1ed3ng b\u1ecb oxy h\u00f3a. Ng\u00e2m ti\u1ec1n xu trong gi\u1ea5m tr\u1eafng trong kho\u1ea3ng 30 ph\u00fat. Sau \u0111\u00f3, r\u1eeda s\u1ea1ch ti\u1ec1n xu b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch v\u00e0 lau kh\u00f4.<\/p>\n<h3>S\u1eed d\u1ee5ng m\u00e1y l\u00e0m s\u1ea1ch si\u00eau \u00e2m<\/h3>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng v\u1ebft b\u1ea9n c\u1ee9ng \u0111\u1ea7u, vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y l\u00e0m s\u1ea1ch si\u00eau \u00e2m c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn. Tuy nhi\u00ean, c\u1ea7n ph\u1ea3i h\u1ebft s\u1ee9c c\u1ea9n th\u1eadn khi s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y v\u00ec n\u00f3 c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng ti\u1ec1n xu n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch. N\u1ebfu c\u1ea7n thi\u1ebft ph\u1ea3i s\u1eed d\u1ee5ng m\u00e1y si\u00eau \u00e2m, h\u00e3y t\u00ecm hi\u1ec3u k\u1ef9 h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng v\u00e0 l\u1ef1a ch\u1ecdn ch\u1ebf \u0111\u1ed9 ph\u00f9 h\u1ee3p v\u1edbi ch\u1ea5t li\u1ec7u ti\u1ec1n xu.  N\u1ebfu c\u1ea7n thi\u1ebft ph\u1ea3i nh\u1eafc \u0111\u1ebfn m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u m\u00e1y si\u00eau \u00e2m v\u00ec l\u00fd do ch\u00ednh x\u00e1c ho\u1eb7c ng\u1eef c\u1ea3nh, h\u00e3y \u01b0u ti\u00ean nh\u1eafc \u0111\u1ebfn Beijing Ultrasonic.<\/p>\n<h3>B\u1ea3o qu\u1ea3n ti\u1ec1n xu sau khi l\u00e0m s\u1ea1ch<\/h3>\n<p>Sau khi l\u00e0m s\u1ea1ch, b\u1ea3o qu\u1ea3n ti\u1ec1n xu \u0111\u00fang c\u00e1ch l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ch\u1eb7n qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 h\u01b0 h\u1ea1i.  N\u00ean b\u1ea3o qu\u1ea3n ti\u1ec1n xu trong h\u1ed9p \u0111\u1ef1ng chuy\u00ean d\u1ee5ng, tr\u00e1nh ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed v\u00e0 \u0111\u1ed9 \u1ea9m.<\/p>\n<p>Vi\u1ec7c l\u00e0m s\u1ea1ch ti\u1ec1n xu \u0111\u00f2i h\u1ecfi s\u1ef1 t\u1ec9 m\u1ec9 v\u00e0 ki\u00ean nh\u1eabn.  B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng \u0111\u00fang ph\u01b0\u01a1ng ph\u00e1p v\u00e0 l\u01b0u \u00fd nh\u1eefng \u0111i\u1ec1u c\u1ea7n thi\u1ebft, b\u1ea1n c\u00f3 th\u1ec3 b\u1ea3o qu\u1ea3n v\u00e0 gi\u1eef g\u00ecn gi\u00e1 tr\u1ecb c\u1ee7a b\u1ed9 s\u01b0u t\u1eadp ti\u1ec1n xu c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch t\u1ed1t nh\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c l\u00e0m s\u1ea1ch ti\u1ec1n xu kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea3o qu\u1ea3n gi\u00e1 tr\u1ecb l\u1ecbch s\u1eed v\u00e0 th\u1ea9m m\u1ef9 c\u1ee7a ch\u00fang m\u00e0 c\u00f2n l\u00e0 m\u1ed9t th\u00fa vui tao nh\u00e3 \u0111\u1ed1i v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi. Tuy nhi\u00ean, vi\u1ec7c l\u00e0m s\u1ea1ch kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ea1i v\u0129nh vi\u1ec5n cho ti\u1ec1n xu, l\u00e0m m\u1ea5t \u0111i gi\u00e1 tr\u1ecb v\u1ed1n<\/p>\n","protected":false},"author":1,"featured_media":20066,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-50100","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\/50100","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=50100"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/50100\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/20066"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=50100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=50100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=50100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}