{"id":1071,"date":"2019-02-25T10:00:00","date_gmt":"2019-02-25T10:00:00","guid":{"rendered":"https:\/\/demo.dillerbottle.com\/info\/insulation-principle-of-vacuum-flask.html"},"modified":"2019-02-25T10:00:00","modified_gmt":"2019-02-25T10:00:00","slug":"prinsip-penebat-kelalang-vakum","status":"publish","type":"post","link":"https:\/\/www.dillerbottle.com\/my\/info\/insulation-principle-of-vacuum-flask.html","title":{"rendered":"Prinsip penebat kelalang vakum"},"content":{"rendered":"

Prinsip penebat kelalang vakum<\/h2>\n

Kelalang termos moden telah dicipta oleh ahli fizik British Sir James Duval pada tahun 1892. Pada masa itu, beliau sedang menjalankan kerja penyelidikan mengenai gas cecair. Untuk mencairkan gas pada suhu rendah, dia terlebih dahulu perlu mereka bentuk bekas yang boleh melindungi gas dari suhu luar. Jadi dia meminta Berg, seorang juruteknik kaca, untuk meniup bekas kaca dua lapis untuknya. Dinding dalaman kedua-dua lapisan itu disalut dengan merkuri, dan kemudian udara di antara dua lapisan itu dipam keluar untuk membentuk vakum. Botol vakum boleh mengekalkan suhu cecair di dalamnya tetap untuk jangka masa tertentu, sama ada sejuk atau panas.<\/p>\n

Kerana botol termos digunakan terutamanya untuk penebat air panas dalam keluarga, ia juga dipanggil botol air panas. Struktur botol termos tidak rumit. Di tengahnya terdapat balang kaca dua lapis. Vakum antara dua lapisan disedut ke dalam keadaan vakum dan disalut dengan perak atau aluminium. Keadaan vakum boleh mengelakkan perolakan haba. Kaca itu sendiri adalah konduktor haba yang tidak baik. Kaca bersalut perak boleh memantulkan semula haba yang dipancarkan dari bahagian dalam bekas. Sebaliknya, jika cecair sejuk disimpan di dalam botol, botol boleh menghalang haba daripada memancar dari luar ke dalam botol.<\/p>\n

<\/p>\n

Gabus botol termos biasanya diperbuat daripada gabus atau plastik, dan tidak ada bahan yang mudah mengalirkan haba. Cangkerang botol termos diperbuat daripada buluh rajutan, plastik, besi, aluminium, keluli tahan karat dan bahan lain. Terdapat mesin basuh getah di mulut botol dan kusyen getah berbentuk mangkuk di bahagian bawah botol. Ini semua adalah untuk membetulkan pundi hempedu kaca untuk mengelakkan perlanggaran dengan kulit luar.<\/p>\n

Fungsi pemeliharaan dan penyejukan haba terburuk bagi botol termos adalah di sekitar kesesakan. Oleh itu, apabila pembuatan, kesesakan sentiasa dipendekkan sejauh mungkin. Lebih besar kapasiti dan lebih kecil mulut botol termos, lebih baik kesan pemeliharaan haba.<\/p>\n

<\/p>","protected":false},"excerpt":{"rendered":"

Insulation principle of vacuum flask The modern thermos flask was invented by British physicist Sir James Duval in 1892. At that time, he was conducting a research work on liquefying gas. To liquefy gas at low temperature, he first needed to design a container which could insulate the gas from the outside temperature. So he […]<\/p>\n","protected":false},"author":0,"featured_media":1070,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1071","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-info"],"acf":[],"yoast_head":"\nInsulation principle of vacuum flask - Diller Water Bottle Manufacturer<\/title>\n<meta name=\"description\" content=\"Insulation principle of vacuum flask\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dillerbottle.com\/my\/info\/prinsip-penebat-kelalang-vakum-html\" \/>\n<meta property=\"og:locale\" content=\"ms_MY\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Insulation principle of vacuum flask\" \/>\n<meta property=\"og:description\" content=\"Insulation principle of vacuum flask\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dillerbottle.com\/my\/info\/prinsip-penebat-kelalang-vakum-html\" \/>\n<meta property=\"og:site_name\" content=\"Diller Water Bottle Manufacturer\" \/>\n<meta property=\"article:published_time\" content=\"2019-02-25T10:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.dillerbottle.com\/wp-content\/uploads\/2024\/09\/201902251034487737323.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"750\" \/>\n\t<meta property=\"og:image:height\" content=\"529\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.dillerbottle.com\\\/info\\\/insulation-principle-of-vacuum-flask.html#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.dillerbottle.com\\\/info\\\/insulation-principle-of-vacuum-flask.html\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"Insulation principle of vacuum flask\",\"datePublished\":\"2019-02-25T10:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.dillerbottle.com\\\/info\\\/insulation-principle-of-vacuum-flask.html\"},\"wordCount\":351,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.dillerbottle.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.dillerbottle.com\\\/info\\\/insulation-principle-of-vacuum-flask.html#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.dillerbottle.com\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/201902251034487737323.jpg\",\"articleSection\":[\"info\"],\"inLanguage\":\"ms-MY\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.dillerbottle.com\\\/info\\\/insulation-principle-of-vacuum-flask.html#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.dillerbottle.com\\\/info\\\/insulation-principle-of-vacuum-flask.html\",\"url\":\"https:\\\/\\\/www.dillerbottle.com\\\/info\\\/insulation-principle-of-vacuum-flask.html\",\"name\":\"Insulation principle of vacuum flask - 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