{"id":283,"date":"2021-09-12T07:31:23","date_gmt":"2021-09-12T07:31:23","guid":{"rendered":"http:\/\/dev.hsmagnet.com\/?page_id=283"},"modified":"2025-09-25T02:31:39","modified_gmt":"2025-09-25T02:31:39","slug":"ima-ndfeb-colado","status":"publish","type":"page","link":"https:\/\/hsmagnet.com\/pt\/magnetic-materials\/bonded-magnets\/bonded-ndfeb-magnet\/","title":{"rendered":"\u00cdm\u00e3 NdFeB Ligado"},"content":{"rendered":"<div class=\"wp-block-group alignfull has-global-padding is-layout-constrained wp-container-core-group-is-layout-004bcdec wp-block-group-is-layout-constrained has-background\" style=\"min-height:900px;margin-top:var(--wp--preset--spacing--20);margin-bottom:var(--wp--preset--spacing--20);padding-top:var(--wp--preset--spacing--60);padding-right:0;padding-bottom:var(--wp--preset--spacing--60);padding-left:0;background-image:url(&apos;https:\/\/hsmagnet.com\/wp-content\/uploads\/2025\/08\/Bonded-NdFeB-Magnet-bg.webp&apos;);background-size:cover;\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h1 class=\"wp-block-heading has-xx-large-font-size\">Fabricante de \u00edm\u00e3s NdFeB aglomerados na China<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">O \u00edm\u00e3 de NdFeB aglomerado \u00e9 feito de p\u00f3 magn\u00e9tico de NdFeB e \u00e9 flex\u00edvel. \u00cdm\u00e3s de NdFeB (neod\u00edmio) apresentam propriedades magn\u00e9ticas superiores, mas o processo de fabrica\u00e7\u00e3o do NdFeB sinterizado n\u00e3o permite maior flexibilidade de formato. \u00cdm\u00e3s de NdFeB aglomerados podem resolver alguns problemas de precis\u00e3o dimensional e formato complexo, mas o magnetismo ser\u00e1 mais fraco do que os \u00edm\u00e3s de NdFeB sinterizados. Os \u00edm\u00e3s s\u00e3o mais leves do que outros \u00edm\u00e3s met\u00e1licos, como os de SmCo. Este material magn\u00e9tico pode ser uma solu\u00e7\u00e3o para muitas aplica\u00e7\u00f5es que exigem tamanho pequeno e alta precis\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Atualmente, existem dois processos de produ\u00e7\u00e3o para \u00edm\u00e3s de NdFeB aglomerados: \u00edm\u00e3s de moldagem por compress\u00e3o e \u00edm\u00e3s de moldagem por inje\u00e7\u00e3o. Diferentes processos podem trazer as mesmas vantagens na produ\u00e7\u00e3o de diferentes formatos ou requisitos multipolares. Leia o artigo para mais informa\u00e7\u00f5es.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-global-padding is-layout-constrained wp-block-group-is-layout-constrained has-background\" style=\"min-height:600px;margin-top:var(--wp--preset--spacing--60);margin-bottom:var(--wp--preset--spacing--60);padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);background-image:url(&apos;https:\/\/hsmagnet.com\/wp-content\/uploads\/2025\/08\/Bonded-NdFeB-Magnet-bg2.webp&apos;);background-size:cover;\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<h2 class=\"wp-block-heading has-base-color has-text-color has-link-color has-xx-large-font-size wp-elements-6d1bf2c65aa42bf93aaeaaca04956837\">Aplica\u00e7\u00e3o de \u00edm\u00e3 NdFeB ligado<\/h2>\n\n\n\n<p class=\"has-base-color has-text-color has-link-color wp-elements-b1f30ef6887b956222c2df54bdcb76b9 wp-block-paragraph\">\u00cdm\u00e3s de NdFeB aglomerados s\u00e3o geralmente utilizados em produtos menores. Sensores na ind\u00fastria automotiva frequentemente utilizam \u00edm\u00e3s de neod\u00edmio aglomerados, especialmente em algumas aplica\u00e7\u00f5es devido \u00e0s fracas propriedades magn\u00e9ticas dos \u00edm\u00e3s de alnico, ou devido a problemas como dificuldades de fabrica\u00e7\u00e3o devido ao formato e aos requisitos multipolares, \u00edm\u00e3s de NdFeB s\u00e3o utilizados em vez de \u00edm\u00e3s de AlNiCo.<br>Em outras aplica\u00e7\u00f5es, o NdFeB ligado tamb\u00e9m \u00e9 usado em muitos produtos eletr\u00f4nicos de consumo e pode ajudar os projetistas a resolver problemas de curvatura magn\u00e9tica com formas e fun\u00e7\u00f5es complexas em compara\u00e7\u00e3o com outros materiais magn\u00e9ticos, como \u00edm\u00e3s de AlNiCo ou SmCo.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Processo de fabrica\u00e7\u00e3o passo a passo de \u00edm\u00e3s NdFeB colados<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left\">1.\u00a0<strong>Prepara\u00e7\u00e3o de mat\u00e9ria-prima e produ\u00e7\u00e3o de p\u00f3<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tudo come\u00e7a com ingredientes de alta pureza: neod\u00edmio (Nd), ferro (Fe), boro (B) e aditivos menores como dispr\u00f3sio (Dy) para resist\u00eancia ao calor ou cobalto (Co) para estabilidade.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Eles s\u00e3o derretidos em um forno de indu\u00e7\u00e3o a v\u00e1cuo a 1.400-1.500\u00b0C para formar um lingote de liga.<\/li>\n\n\n\n<li>O lingote \u00e9 rapidamente resfriado (por exemplo, por fia\u00e7\u00e3o por fus\u00e3o) para criar fitas ou flocos, que s\u00e3o ent\u00e3o mo\u00eddos em p\u00f3s finos (1-10 m\u00edcrons). Essa &quot;solidifica\u00e7\u00e3o r\u00e1pida&quot; preserva a microestrutura magn\u00e9tica.<\/li>\n\n\n\n<li>Os p\u00f3s s\u00e3o peneirados e, \u00e0s vezes, revestidos para evitar a oxida\u00e7\u00e3o, garantindo part\u00edculas uniformes e de alta qualidade.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Dica profissional: o tamanho e o formato do p\u00f3 afetam diretamente a densidade e a resist\u00eancia final do \u00edm\u00e3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.&nbsp;<strong>Mistura com ligante<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O p\u00f3 de NdFeB (70-95% em volume) \u00e9 misturado com um ligante de pol\u00edmero (5-30%), como termopl\u00e1stico (nylon) para moldagem por inje\u00e7\u00e3o ou termoendurec\u00edvel (ep\u00f3xi) para compress\u00e3o.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A mistura ocorre em um misturador ou extrusora de alto cisalhamento em temperaturas controladas (temperatura ambiente at\u00e9 200\u00b0C) para criar um composto homog\u00eaneo.<\/li>\n\n\n\n<li>Aditivos como lubrificantes ou agentes de acoplamento melhoram o fluxo e a ades\u00e3o.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Esta etapa transforma o material magn\u00e9tico em uma \u201cmat\u00e9ria-prima\u201d mold\u00e1vel, semelhante a pellets de pl\u00e1stico.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.&nbsp;<strong>Moldagem e modelagem<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O composto \u00e9 moldado no formato desejado usando t\u00e9cnicas como:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Moldagem por inje\u00e7\u00e3o<\/strong>: Aquecido e injetado em moldes sob press\u00e3o (ideal para pe\u00e7as complexas e de paredes finas).<\/li>\n\n\n\n<li><strong>Moldagem por compress\u00e3o<\/strong>:Prensado em matrizes a 100-300 MPa e calor moderado.<\/li>\n\n\n\n<li><strong>Extrus\u00e3o ou calandragem<\/strong>: Para formas cont\u00ednuas, como folhas ou barras.<\/li>\n\n\n\n<li>Para \u00edm\u00e3s anisotr\u00f3picos, um campo magn\u00e9tico \u00e9 aplicado durante a moldagem para alinhar as part\u00edculas, aumentando o desempenho em 20-30%.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">O resultado \u00e9 uma pe\u00e7a \u201cverde\u201d s\u00f3lida, mas n\u00e3o totalmente endurecida.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.&nbsp;<strong>Cura e Desvincula\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Para fixar o aglutinante e remover quaisquer vol\u00e1teis:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Os ligantes termofixos s\u00e3o curados em fornos a 150-250\u00b0C por horas, reticulando o pol\u00edmero para maior resist\u00eancia.<\/li>\n\n\n\n<li>As vers\u00f5es termopl\u00e1sticas resfriam naturalmente ou s\u00e3o recozidas para aliviar o estresse.<\/li>\n\n\n\n<li>Se os ligantes inclu\u00edrem solventes, uma etapa de remo\u00e7\u00e3o de ligantes (extra\u00e7\u00e3o t\u00e9rmica ou por solvente) os elimina sem danificar a estrutura.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Isso densifica o \u00edm\u00e3 para 5-7 g\/cm\u00b3 (vs. 7,5 g\/cm\u00b3 para sinterizado), criando um composto leve.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.&nbsp;<strong>Usinagem e Acabamento<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u00cdm\u00e3s colados s\u00e3o mais f\u00e1ceis de usinar do que os sinterizados devido ao seu conte\u00fado de pol\u00edmero:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aparar, perfurar ou retificar refina formas com ferramentas padr\u00e3o (n\u00e3o s\u00e3o necess\u00e1rios diamantes).<\/li>\n\n\n\n<li>Revestimentos protetores (por exemplo, parileno ou tinta) s\u00e3o aplicados para proteger contra corros\u00e3o e umidade, pois o NdFeB \u00e9 propenso \u00e0 ferrugem.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">As toler\u00e2ncias podem chegar a \u00b10,05 mm, tornando-as precisas para linhas de montagem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6.&nbsp;<strong>Testes de magnetiza\u00e7\u00e3o e qualidade<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A pe\u00e7a moldada \u00e9 magnetizada em um magnetizador de pulso ou eletro\u00edm\u00e3 para saturar as part\u00edculas de NdFeB.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Os testes verificam propriedades como reman\u00eancia (Br), coercividade (Hc) e produto energ\u00e9tico usando vibr\u00f4metros ou testadores de tra\u00e7\u00e3o.<\/li>\n\n\n\n<li>Inspe\u00e7\u00f5es de defeitos, densidade e integridade do aglutinante garantem confiabilidade, geralmente de acordo com os padr\u00f5es ISO 9001.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Os produtos finais s\u00e3o desmagnetizados para envio seguro, se necess\u00e1rio.<br><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull is-style-default has-base-color has-text-color has-background has-link-color wp-elements-17a6758a788521a5bf0761bf16388e5c has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"background:linear-gradient(10deg,rgb(0,0,0) 0%,rgb(81,151,224) 100%);padding-top:var(--wp--preset--spacing--60);padding-bottom:var(--wp--preset--spacing--60)\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-text-align-center\">Entre em contato<\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Junte-se a centenas de clientes satisfeitos que confiam na HS Magnet para suas aplica\u00e7\u00f5es magn\u00e9ticas cr\u00edticas.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Entre em contato com nossa equipe de especialistas para consultas t\u00e9cnicas, solu\u00e7\u00f5es personalizadas ou d\u00favidas sobre produtos<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-794e3cfa wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-35f06ea7 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-base-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/hsmagnet.com\/pt\/contate-nos\/\" style=\"background-color:#0975d9\">Contate-nos<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><br><\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Bonded NdFeB Magnets Manufacturer in China Bonded NdFeB Magnet is made of NdFeB magnetic powder and flexible. NdFeB (Neodymium) magnets have been found to provide superior magnetic properties, but the manufacturing process of sintered NdFeB does not allow greater flexibility in shape. Bonded NdFeB magnet can solve some dimensional accuracy and complex shape problems, but [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":686,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-no-title","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"class_list":["post-283","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bonded Neodymium Magnets Bonded NdFeB Magnet Rare earth magnets<\/title>\n<meta name=\"description\" content=\"Bonded NdFeB magnets are made of NdFeB magnetic powder and are flexible. At present, there are two production processes for bonded NdFeB magnets, compression-molded magnets and injection-molded magnets.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hsmagnet.com\/pt\/materiais-magneticos\/imas-ligados\/ima-ndfeb-colado\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bonded Neodymium Magnets Bonded NdFeB Magnet Rare earth magnets\" \/>\n<meta property=\"og:description\" content=\"Bonded NdFeB magnets are made of NdFeB magnetic powder and are flexible. 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