{"id":23066,"date":"2026-11-10T11:40:30","date_gmt":"2026-11-10T04:40:30","guid":{"rendered":"https:\/\/uvtech.vn\/?p=23066"},"modified":"2026-11-10T13:39:36","modified_gmt":"2026-11-10T06:39:36","slug":"cac-su-co-ve-den-say-uv-va-cach-khac-phuc-phan-2","status":"publish","type":"post","link":"https:\/\/uvtech.vn\/vi\/cac-su-co-ve-den-say-uv-va-cach-khac-phuc-phan-2\/","title":{"rendered":"C\u00e1c s\u1ef1 c\u1ed1 v\u1ec1 \u0111\u00e8n s\u1ea5y UV v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c (Ph\u1ea7n 2)"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"23066\" class=\"elementor elementor-23066\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2cecbc83 elementor-section-boxed elementor-section-height-default elementor-section-height-default sc_fly_static\" data-id=\"2cecbc83\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-extended\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-74710975 sc_inner_width_none sc_content_align_inherit sc_layouts_column_icons_position_left sc_fly_static\" data-id=\"74710975\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-15ab5ac0 sc_fly_static elementor-widget elementor-widget-text-editor\" data-id=\"15ab5ac0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\n<h5 class=\"wp-block-heading\"><strong>4. \u0110\u00c8N UV B\u1eca BI\u1ebeN D\u1ea0NG<\/strong><\/h5>\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"201\" height=\"121\" class=\"wp-image-23067 aligncenter\" style=\"width: 340px; height: auto;\" src=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image.png\" alt=\"\" srcset=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image.png 201w, https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-18x12.png 18w\" sizes=\"(max-width: 201px) 100vw, 201px\" \/><\/figure>\n\n<p><strong>V\u1ea5n \u0111\u1ec1:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u00e8n UV c\u00f3 th\u1ec3 b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c cong v\u00eanh, ph\u00ecnh to th\u00e2n \u0111\u00e8n khi ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao do lu\u1ed3ng kh\u00f4ng kh\u00ed l\u00e0m m\u00e1t kh\u00f4ng \u0111\u1ee7 ho\u1eb7c ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ec1u trong h\u1ec7 th\u1ed1ng UV. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y th\u01b0\u1eddng x\u1ea3y ra v\u1edbi \u0111\u00e8n d\u00e0i, v\u00ec y\u00eau c\u1ea7u lu\u1ed3ng kh\u00ed l\u00e0m m\u00e1t l\u1edbn h\u01a1n tr\u00ean di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t.<\/li>\n\n<li>Khi th\u00e2n \u0111\u00e8n qu\u00e1 n\u00f3ng, th\u1ea1ch anh c\u00f3 th\u1ec3 m\u1ec1m ra, d\u1eabn \u0111\u1ebfn ch\u1ea3y x\u1ec7 d\u01b0\u1edbi tr\u1ecdng l\u1ef1c ho\u1eb7c bi\u1ebfn d\u1ea1ng do ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t b\u00ean trong \u0111\u00e8n.<\/li>\n<\/ul>\n\n<p>\u00a0<\/p>\n\n<p><strong>Ph\u00f2ng ng\u1eeba:<\/strong><\/p>\n\n<p>Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec7t \u0111\u1ed9 th\u00e2n \u0111\u00e8n \u2264 850\u00b0C<\/li>\n\n<li>\u0110\u1ea3m b\u1ea3o lu\u1ed3ng kh\u00f4ng kh\u00ed l\u00e0m m\u00e1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u00fang v\u00e0 ph\u00e2n b\u1ed1 \u0111\u1ec1u quanh \u0111\u00e8n.<\/li>\n\n<li>Ki\u1ec3m tra ch\u1eafc ch\u1eafn h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea7y \u0111\u1ee7 v\u00e0 hi\u1ec7u qu\u1ea3.<\/li>\n\n<li>N\u1ebfu c\u00f3 th\u1ec3, xoay \u0111\u00e8n UV 180\u00b0 m\u1ed7i tu\u1ea7n \u0111\u1ec3 gi\u1ea3m nguy c\u01a1 cong v\u00eanh.<\/li>\n<\/ul>\n\n<h5 class=\"wp-block-heading\"><strong>5. \u0110\u00c8N UV B\u1eca M\u1edc \u0110\u1ee4C<\/strong><\/h5>\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"201\" height=\"121\" class=\"wp-image-23068 aligncenter\" style=\"width: 339px; height: auto;\" src=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-1.png\" alt=\"\" srcset=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-1.png 201w, https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-1-18x12.png 18w\" sizes=\"(max-width: 201px) 100vw, 201px\" \/><\/figure>\n\n<p><strong>V\u1ea5n \u0111\u1ec1:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u00e8n UV b\u1ecb m\u1edd \u0111\u1ee5c khi tr\u00ean th\u00e2n \u0111\u00e8n xu\u1ea5t hi\u1ec7n nhi\u1ec1u \u0111\u1ed1m tr\u1eafng, l\u00e0m gi\u1ea3m \u0111\u1ed9 trong su\u1ed1t c\u1ee7a \u1ed1ng th\u1ea1ch anh v\u00e0 c\u1ea3n tr\u1edf tia UV truy\u1ec1n qua.<\/li>\n\n<li>Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi \u0111\u00e8n b\u1ecb nhi\u1ec5m b\u1ea9n, v\u00e0 s\u1ebd tr\u1edf n\u00ean nghi\u00eam tr\u1ecdng h\u01a1n khi \u0111\u00e8n ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao.<\/li>\n<\/ul>\n\n<p>\u00a0<\/p>\n\n<p><strong>Ph\u00f2ng ng\u1eeba:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Lu\u00f4n l\u00e0m s\u1ea1ch \u0111\u00e8n UV tr\u01b0\u1edbc khi v\u1eadn h\u00e0nh (c\u00f3 th\u1ec3 d\u00f9ng c\u1ed3n \u2013 IPA \u0111\u1ec3 v\u1ec7 sinh).<\/li>\n\n<li>V\u1eadn h\u00e0nh m\u00e1y trong m\u00f4i tr\u01b0\u1eddng \u00edt b\u1ee5i b\u1ea9n.<\/li>\n\n<li>\u0110\u1ea3m b\u1ea3o \u0111\u00e8n ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang \u0111i\u1ec7n \u00e1p v\u00e0 c\u00f4ng su\u1ea5t thi\u1ebft k\u1ebf.<\/li>\n\n<li>\u0110\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n\n<h5 class=\"wp-block-heading\"><strong>6. \u0110\u00c8N UV B\u1eca H\u1eceNG \u0110\u1ea6U S\u1ee8<\/strong><\/h5>\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"201\" height=\"121\" class=\"wp-image-23069 aligncenter\" style=\"width: 339px; height: auto;\" src=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-2.png\" alt=\"\" srcset=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-2.png 201w, https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-2-18x12.png 18w\" sizes=\"(max-width: 201px) 100vw, 201px\" \/><\/figure>\n\n<p><strong>V\u1ea5n \u0111\u1ec1:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>N\u1ebfu \u0111\u00e8n UV ho\u1ea1t \u0111\u1ed9ng \u1edf d\u00f2ng \u0111i\u1ec7n qu\u00e1 t\u1ea3i ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, c\u00e1c k\u1ebft n\u1ed1i \u0111i\u1ec7n t\u1ea1i \u0111\u1ea7u s\u1ee9 c\u1ee7a \u0111\u00e8n c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng. T\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i \u0111i\u1ec7n th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn s\u1ef1 c\u1ed1 ngu\u1ed3n \u0111i\u1ec7n ho\u1eb7c b\u1ed9 ngu\u1ed3n (ballast), <strong><em>kh\u00f4ng ph\u1ea3i do l\u1ed7i thi\u1ebft k\u1ebf c\u1ee7a \u0111\u00e8n.<\/em><\/strong><\/li>\n\n<li>C\u00e1c k\u1ebft n\u1ed1i \u0111i\u1ec7n t\u1ea1i hai \u0111\u1ea7u \u0111\u00e8n UV \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a kho\u1ea3ng 250\u00b0C. Khi v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n n\u00e0y, c\u00f3 th\u1ec3 x\u1ea3y ra h\u1ed3 quang \u0111i\u1ec7n gi\u1eefa \u0111\u00e8n v\u00e0 \u0111\u1ebf \u0111\u00e8n, d\u1eabn \u0111\u1ebfn ch\u00e1y th\u1ee7ng n\u1eafp s\u1ee9, h\u01b0 h\u1ecfng \u0111\u00e8n v\u00e0 th\u1eadm ch\u00ed l\u00e0m h\u1ecfng h\u1ec7 th\u1ed1ng UV.<\/li>\n<\/ul>\n\n<p>\u00a0<\/p>\n\n<p><strong>Ph\u00f2ng ng\u1eeba:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ecdn \u0111\u00fang lo\u1ea1i \u0111\u00e8n UV ph\u00f9 h\u1ee3p v\u1edbi b\u1ed9 ngu\u1ed3n v\u00e0 \u0111\u1ea3m b\u1ea3o b\u1ed9 ngu\u1ed3n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/li>\n\n<li>Gi\u1eef nhi\u1ec7t \u0111\u1ed9 ch\u1ee5p s\u1ee9 (ceramic cap) v\u00e0 gio\u0103ng (seal) d\u01b0\u1edbi 250\u00b0C.<\/li>\n\n<li>\u0110\u1ea3m b\u1ea3o \u0111\u00e8n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang v\u1ecb tr\u00ed trong c\u1ee5m \u0111\u00e8n.<\/li>\n\n<li>Ki\u1ec3m tra ch\u1ee5p s\u1ee9 tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u n\u1ee9t, ch\u00e1y ho\u1eb7c h\u01b0 h\u1ecfng.<\/li>\n<\/ul>\n\n<h5 class=\"wp-block-heading\"><strong>7. KH\u00d4NG KH\u00cd B\u00caN TRONG H\u1ec6 TH\u1ed0NG \u0110\u00c8N B\u1eca NHI\u1ec4M B\u1ea8N<\/strong><\/h5>\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"201\" height=\"121\" class=\"wp-image-23070 aligncenter\" style=\"width: 339px; height: auto;\" src=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-3.png\" alt=\"\" srcset=\"https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-3.png 201w, https:\/\/uvtech.vn\/wp-content\/uploads\/2026\/11\/image-3-18x12.png 18w\" sizes=\"(max-width: 201px) 100vw, 201px\" \/><\/figure>\n\n<p><strong>V\u1ea5n \u0111\u1ec1:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Trong c\u00e1c h\u1ec7 th\u1ed1ng UV s\u1eed d\u1ee5ng kh\u00ed n\u00e9n \u0111\u1ec3 l\u00e0m m\u00e1t, n\u1ebfu lu\u1ed3ng kh\u00ed b\u1ecb nhi\u1ec5m b\u1ea9n ho\u1eb7c ch\u1ee9a h\u01a1i \u1ea9m, c\u00e1c t\u1ea1p ch\u1ea5t c\u00f3 th\u1ec3 x\u00e2m nh\u1eadp v\u00e0o b\u00ean trong h\u1ec7 th\u1ed1ng \u0111\u00e8n.<\/li>\n\n<li>Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y c\u00f3 th\u1ec3 g\u00e2y th\u1ee7y tinh h\u00f3a c\u1ee5c b\u1ed9 tr\u00ean \u1ed1ng th\u1ea1ch anh, \u0111\u1eb7c bi\u1ec7t t\u1ea1i c\u00e1c v\u1ecb tr\u00ed l\u1ed7 l\u00e0m m\u00e1t trong b\u1ed9 ph\u1ea3n x\u1ea1, n\u01a1i lu\u1ed3ng kh\u00ed t\u1eadp trung tr\u1ef1c ti\u1ebfp l\u00ean th\u00e2n \u0111\u00e8n.<\/li>\n\n<li>Khi \u0111i\u1ec1u n\u00e0y x\u1ea3y ra, \u0111\u1ed9 trong su\u1ed1t c\u1ee7a \u1ed1ng th\u1ea1ch anh gi\u1ea3m, d\u1eabn \u0111\u1ebfn gi\u1ea3m hi\u1ec7u su\u1ea5t ph\u00e1t tia UV.<\/li>\n<\/ul>\n\n<p>\u00a0<\/p>\n\n<p><strong>Ph\u00f2ng ng\u1eeba:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ea3m b\u1ea3o ngu\u1ed3n kh\u00ed n\u00e9n s\u1ea1ch v\u00e0 kh\u00f4.<\/li>\n\n<li>Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 b\u1ed9 l\u1ecdc kh\u00ed v\u00e0 h\u1ec7 th\u1ed1ng t\u00e1ch \u1ea9m c\u1ee7a h\u1ec7 th\u1ed1ng kh\u00ed n\u00e9n.<\/li>\n<\/ul>\n\n<div class=\"wp-block-spacer\" style=\"height: 100px;\" aria-hidden=\"true\">\u00a0<\/div>\n\n<p><em>\u0110\u1ecdc ti\u1ebfp:<\/em><\/p>\n<p><a href=\"https:\/\/uvtech.vn\/lam-the-nao-de-tang-tuoi-tho-cua-den-uv\/\">https:\/\/uvtech.vn\/lam-the-nao-de-tang-tuoi-tho-cua-den-uv\/<\/a><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>4. \u0110\u00c8N UV B\u1eca BI\u1ebeN D\u1ea0NG V\u1ea5n \u0111\u1ec1: \u00a0 Ph\u00f2ng ng\u1eeba: Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh: 5. \u0110\u00c8N UV B\u1eca M\u1edc \u0110\u1ee4C V\u1ea5n \u0111\u1ec1: \u00a0 Ph\u00f2ng ng\u1eeba: 6. \u0110\u00c8N UV&hellip;<\/p>\n","protected":false},"author":15,"featured_media":22767,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-23066","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-danh-muc-tin-tuc"],"_links":{"self":[{"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/posts\/23066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/comments?post=23066"}],"version-history":[{"count":4,"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/posts\/23066\/revisions"}],"predecessor-version":[{"id":23095,"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/posts\/23066\/revisions\/23095"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/media\/22767"}],"wp:attachment":[{"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/media?parent=23066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/categories?post=23066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uvtech.vn\/vi\/wp-json\/wp\/v2\/tags?post=23066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}