{"id":4931,"date":"2021-12-22T13:04:08","date_gmt":"2021-12-22T13:04:08","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4931"},"modified":"2026-04-28T10:41:54","modified_gmt":"2026-04-28T10:41:54","slug":"what-should-i-do-if-the-glass-plug-is-stuck","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/what-should-i-do-if-the-glass-plug-is-stuck\/","title":{"rendered":"O que devo fazer se o buj\u00e3o de vidro estiver preso?"},"content":{"rendered":"<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> For wetting, leveling, defoaming, and dispersing topics, formulators usually compare performance and side effects together because over-correcting one surface issue can easily create another.<\/p>\n<!-- lc-qa-end -->\n\n\n<p>O motivo pelo qual o plugue de aterramento n\u00e3o pode ser aberto<\/p>\n\n\n\n<p>No processo de rea\u00e7\u00e3o de s\u00edntese org\u00e2nica, \u00e0s vezes o instrumento de aterramento fica grudado e n\u00e3o pode ser desmontado. O manuseio inadequado danificar\u00e1 o instrumento. Em geral, h\u00e1 tr\u00eas motivos para a falha na abertura, como segue: 1. Causada por press\u00e3o negativa: a causa da solu\u00e7\u00e3o Quando a temperatura no bal\u00e3o volum\u00e9trico estiver alta, cubra a rolha de aterramento, cubra a rolha de aterramento quando a temperatura ambiente estiver alta e abra a rolha de aterramento quando a temperatura ambiente estiver baixa. M\u00e9todo de abertura: aque\u00e7a lentamente o bal\u00e3o volum\u00e9trico (bal\u00e3o triangular) com \u00e1gua morna para gerar press\u00e3o positiva no frasco. 2. Ader\u00eancia na boca de moagem: causada por um l\u00edquido com alta viscosidade: despeje a boca de moagem com \u00e1gua quente. Causa de subst\u00e2ncias facilmente cristalizadas: despeje \u00e1gua na boca de moagem para dissolver os cristais. O \u00eambolo da bureta de \u00e1cido est\u00e1 seco e s\u00f3lido. Use \u00e1gua quente para derramar rapidamente a parte externa do \u00eambolo. N\u00e3o aque\u00e7a o pist\u00e3o \u00e0 mesma temperatura e abra o pist\u00e3o por expans\u00e3o externa. 3. Liga\u00e7\u00e3o de subst\u00e2ncia alcalina: Use espuma \u00e1cida dilu\u00edda para dissolver a subst\u00e2ncia alcalina. Em suma, quando n\u00e3o for poss\u00edvel abrir o pist\u00e3o, devem ser adotados m\u00e9todos diferentes de acordo com os diferentes motivos.<\/p>\n\n\n\n<p>M\u00e9todo geral<\/p>\n\n\n\n<p>Quando o pist\u00e3o de aterramento n\u00e3o puder ser aberto, ele ser\u00e1 esmagado se for parafusado com for\u00e7a. Voc\u00ea pode tentar os seguintes m\u00e9todos:<\/p>\n\n\n\n<p>(1) Bata em um dos lados da pe\u00e7a fixa de esmerilhamento com uma ferramenta de madeira, de modo que a pe\u00e7a fixa se solte e se separe gradualmente devido \u00e0 vibra\u00e7\u00e3o;<\/p>\n\n\n\n<p>(2) Aque\u00e7a a camada externa do plugue de moagem, use \u00e1gua quente, secador de cabelo el\u00e9trico, fogo baixo para assar e bata de vez em quando;<\/p>\n\n\n\n<p>(3) Adicione algumas gotas de l\u00edquido com forte poder de penetra\u00e7\u00e3o, como \u00e9ter de petr\u00f3leo ou solu\u00e7\u00e3o dilu\u00edda de surfactante, \u00e0 abertura fixa da boca de moagem. \u00c0s vezes, ele pode ser aberto rapidamente, mas \u00e0s vezes leva v\u00e1rios dias para fazer efeito.<\/p>\n\n\n\n<p>(4) Congele na geladeira e, em seguida, retire a haste de borracha e bata levemente nela<\/p>\n\n\n\n<p>Medidas diferentes em situa\u00e7\u00f5es diferentes<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Bata Use um utens\u00edlio de madeira para bater suavemente em um lado da boca de moagem, para que ela se solte gradualmente devido \u00e0 vibra\u00e7\u00e3o. Para frascos de reagentes cimentados, rolhas esmerilhadas de funis de separa\u00e7\u00e3o etc., a rolha e a boca do frasco do instrumento podem ser presas nos cantos da mesa experimental ou da mesa de madeira e, em seguida, os utens\u00edlios de madeira podem ser acesos ao longo da dire\u00e7\u00e3o em um \u00e2ngulo de cerca de 70\u00b0 em rela\u00e7\u00e3o ao eixo do instrumento. Bata e gire o instrumento intermitentemente ao mesmo tempo. Opera\u00e7\u00f5es repetidas como essa v\u00e1rias vezes podem, em geral, abrir a boca de esmerilhamento que n\u00e3o esteja muito cimentada.<\/li><li>O aquecimento de algumas bocas de moagem cimentadas \u00e9 inconveniente para bater ou a batida n\u00e3o \u00e9 v\u00e1lida. A camada externa da pe\u00e7a cimentada pode ser aquecida para que seja expandida termicamente e separada da camada interna. Por exemplo, use um pano \u00famido quente para \"comprimir a quente\" a \u00e1rea de colagem, use um secador de cabelo el\u00e9trico ou uma chama de nata\u00e7\u00e3o para assar a \u00e1rea de base e assim por diante.<\/li><li>Infiltra\u00e7\u00e3o. Algumas bocas de moagem s\u00e3o relativamente firmes devido \u00e0 eros\u00e3o qu\u00edmica ou s\u00e3o instrumentos caros com estruturas complexas. Elas n\u00e3o s\u00e3o adequadas para bater e aquecer. Elas podem ser abertas ap\u00f3s serem mergulhadas em \u00e1gua ou \u00e1cido clor\u00eddrico dilu\u00eddo por v\u00e1rias horas. Se o instrumento for usado com urg\u00eancia, solventes org\u00e2nicos com forte poder de penetra\u00e7\u00e3o (como benzeno, acetato de etila, \u00e9ter de petr\u00f3leo e dioctil sulfossuccinato de s\u00f3dio, etc.) tamb\u00e9m podem ser adicionados gota a gota ao espa\u00e7o entre a boca de moagem para faz\u00ea-lo penetrar e se infiltrar no bast\u00e3o. Assim, as partes fixas s\u00e3o separadas umas das outras.<\/li><li>A vaselina e outras subst\u00e2ncias oleosas grudam no pist\u00e3o. Voc\u00ea pode usar um secador de cabelo ou um fogo brando para aquec\u00ea-lo lentamente e reduzir a viscosidade do \u00f3leo, ou bater na rolha com uma vara de madeira para abri-la ap\u00f3s o derretimento. (2) O pist\u00e3o n\u00e3o ficar\u00e1 preso devido \u00e0 poeira por muito tempo, portanto, pode ser mergulhado em \u00e1gua e pode ser aberto ap\u00f3s algumas horas.<\/li><li>O pist\u00e3o preso \u00e0 subst\u00e2ncia alcalina pode aquecer o instrumento em \u00e1gua at\u00e9 a ebuli\u00e7\u00e3o e, em seguida, bater na rolha com uma vara de madeira para abri-la.<\/li><li>Quando a tampa do frasco de reagente com reagente dentro for aberta, se o frasco contiver reagentes corrosivos, como \u00e1cido sulf\u00farico concentrado, etc., um tambor de pl\u00e1stico deve ser colocado fora do frasco para evitar que ele se quebre. O operador deve usar uma m\u00e1scara de plexiglass. Deixe seu rosto muito pr\u00f3ximo da boca do frasco. Abra a boca de vapores t\u00f3xicos (como o bromo l\u00edquido) em uma capela de exaust\u00e3o. Ap\u00f3s o t\u00e9rmino dos preparativos, bata na tampa com um bast\u00e3o de madeira. Voc\u00ea tamb\u00e9m pode lavar a boca do frasco, usar o frasco para enxaguar um pouco de \u00e1gua destilada para umedecer a boca de moagem e, em seguida, bater levemente na tampa do frasco.<\/li><li>No caso de rolhas de garrafa presas devido \u00e0 cristaliza\u00e7\u00e3o ou \u00e0 deposi\u00e7\u00e3o de sal de metal alcalino e \u00e1lcali forte, a boca da garrafa pode ser mergulhada em \u00e1gua ou \u00e1cido clor\u00eddrico dilu\u00eddo e pode ser aberta ap\u00f3s um per\u00edodo de tempo.<\/li><li>Coloque a parte do pist\u00e3o presa no tanque de limpeza contendo \u00e1gua da m\u00e1quina de limpeza ultrass\u00f4nica e abra o pist\u00e3o por meio da vibra\u00e7\u00e3o e penetra\u00e7\u00e3o da onda ultrass\u00f4nica. Esse m\u00e9todo funciona bem.<\/li><li>Infiltra\u00e7\u00e3o de solvente org\u00e2nico. Use um conta-gotas para adicionar uma pequena quantidade de solvente org\u00e2nico (DMF ou acetona) \u00e0 boca de retifica\u00e7\u00e3o. Quando a junta estiver cheia de solvente, tente gir\u00e1-la.<\/li><li>Entregue-o ao vidraceiro e asse-o com uma l\u00e2mpada de acetileno (\u00faltimo truque)<\/li><\/ol>\n\n\n\n<p>Casos especiais<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Para medicamentos que n\u00e3o s\u00e3o f\u00e1ceis de aquecer, voc\u00ea pode adicionar uma pequena quantidade de \u00e1gua destilada ou \u00e1gua pura na lateral da rolha. Depois que a \u00e1gua penetrar na rolha e na boca do frasco, segure o frasco com a m\u00e3o por um tempo e, em seguida, voc\u00ea poder\u00e1 abri-lo<\/li><li>Se o frasco contiver reagentes corrosivos, como \u00e1cido sulf\u00farico concentrado, um tambor de pl\u00e1stico deve ser colocado fora do frasco para evitar que ele se quebre. O operador deve usar uma m\u00e1scara de plexiglass e n\u00e3o aproximar muito o rosto da boca da garrafa durante a opera\u00e7\u00e3o.<\/li><li>Abra a boca do frasco de vapor t\u00f3xico para operar em uma capela de exaust\u00e3o. Ap\u00f3s a prepara\u00e7\u00e3o, voc\u00ea pode bater na tampa com um bast\u00e3o de madeira ou lavar a boca do frasco. Use o frasco para soprar um pouco de \u00e1gua destilada para umedecer o ch\u00e3o e, em seguida, bata na tampa.<\/li><li>Quando a tampa de rosca n\u00e3o puder ser desparafusada, voc\u00ea pode usar um secador de cabelo ou uma pequena chama para assar ao redor da tampa e faz\u00ea-la expandir pelo calor e, em seguida, usar um pano para envolver a tampa e desparafus\u00e1-la com for\u00e7a. Se a garrafa contiver subst\u00e2ncias n\u00e3o aquec\u00edveis ou inflam\u00e1veis, voc\u00ea pode pegar uma corda forte e amarrar uma extremidade a um objeto fixo (como ma\u00e7anetas de portas e janelas) e, em seguida, dar um la\u00e7o na corda no sentido hor\u00e1rio na tampa da garrafa e apert\u00e1-la com uma m\u00e3o.<\/li><\/ol>\n\n\n<!-- lc-commercial-start -->\n<h2>How buyers usually evaluate coating and ink additives<\/h2>\n<p>Additive selection is usually most effective when the team defines the defect first and then screens compatibility, dosage range, and process stage. That is often much more reliable than choosing only by chemistry family or by a single dramatic lab result.<\/p>\n<ul>\n<li><strong>Start from the defect, not the additive name:<\/strong> wetting loss, crater, microfoam, and instability often need different solutions even inside the same formula.<\/li>\n<li><strong>Check compatibility at the intended dosage:<\/strong> the strongest additive can still be the wrong commercial choice if it narrows the process window too much.<\/li>\n<li><strong>Review the stage of use:<\/strong> some products are most useful during grind, while others matter more during let-down, filling, or final application.<\/li>\n<li><strong>Balance cure or film quality with defect control:<\/strong> the right additive fixes the problem without sacrificing adhesion, gloss, or appearance.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> A balanced defoamer reference for waterborne coatings and many general foam-control screens.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> Useful when printing-ink and UV-ink compatibility matter in the defoaming screen.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> A stronger process-defoaming option when persistent foam survives harsher conditions.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> A strong wetting-agent reference for inks, coatings, and difficult substrate wetting.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why does an additive that looks powerful in a beaker sometimes fail in production?<\/strong><br \/>Because shear, temperature, substrate, and the full formula can all change the way the additive performs under real process conditions.<\/p>\n<p><strong>Should the most aggressive additive always be preferred?<\/strong><br \/>Not usually. The best additive is the one that solves the real defect while preserving the broadest safe operating window.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>The reason why the ground plug can&#8217;t be opened In the process of organic synthesis reaction, sometimes the grounding instrument sticks together and cannot be disassembled. Improper handling will damage<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-4931","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What should I do if the glass plug is stuck? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"The reason why the ground plug can&#039;t be opened In the process of organic synthesis reaction, sometimes the grounding instrument sticks together and cann...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/pt\/what-should-i-do-if-the-glass-plug-is-stuck\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What should I do if the glass plug is stuck? 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