{"id":18377,"date":"2026-01-21T19:12:53","date_gmt":"2026-01-21T11:12:53","guid":{"rendered":"https:\/\/www.boberry-mach.com\/ponto-de-fusao-do-cobre-um-guia-completo\/"},"modified":"2026-03-25T17:11:37","modified_gmt":"2026-03-25T09:11:37","slug":"ponto-de-fusao-do-cobre-um-guia-completo","status":"publish","type":"post","link":"https:\/\/www.boberry-mach.com\/pt-br\/ponto-de-fusao-do-cobre-um-guia-completo\/","title":{"rendered":"Ponto de fus\u00e3o do cobre: um guia completo"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">O cobre \u00e9 um dos metais mais antigos e mais utilizados pela humanidade, valorizado por sua condutividade, ductilidade e resist\u00eancia \u00e0 corros\u00e3o. Uma caracter\u00edstica f\u00edsica essencial que afeta o processamento, a liga e o uso do metal em processos industriais e de manufatura \u00e9 seu ponto de fus\u00e3o.<\/span><\/p>\n<h2><b>Qual \u00e9 a temperatura em que o cobre derrete?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A temperatura na qual o cobre passa do estado s\u00f3lido para o l\u00edquido sob press\u00e3o atmosf\u00e9rica padr\u00e3o \u00e9 conhecida como ponto de fus\u00e3o.<\/span><a href=\"https:\/\/www.boberry-mach.com\/pt-br\/fundicao\/\"> <span style=\"font-weight: 400;\">elenco<\/span><\/a><span style=\"font-weight: 400;\">Os processos de soldagem, recozimento e refino em uma variedade de ind\u00fastrias, incluindo eletr\u00f4nica e aeroespacial, s\u00e3o impactados por essa mudan\u00e7a, que \u00e9 uma caracter\u00edstica crucial do material.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ponto de fus\u00e3o do cobre (Cu puro): 1.084,62\u00b0C<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ponto de fus\u00e3o em Fahrenheit: 1.984,32\u00b0F<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ponto de fus\u00e3o em Kelvin: 1.357,77 K<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Ao contr\u00e1rio de alguns metais que apresentam amolecimento gradual, o cobre mant\u00e9m uma transi\u00e7\u00e3o n\u00edtida entre o estado s\u00f3lido e o l\u00edquido, tornando seu ponto de fus\u00e3o altamente reproduz\u00edvel em ambientes controlados.<\/span><\/p>\n<h2><b>Como determinar o ponto de fus\u00e3o<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A temperatura de equil\u00edbrio na qual as fases l\u00edquida e s\u00f3lida coexistem \u00e9 denominada ponto de fus\u00e3o em metalurgia e ci\u00eancia dos materiais. Para metais puros como o cobre, esse ponto \u00e9 preciso e n\u00e3o ocorre em uma faixa de valores. Na pr\u00e1tica, pequenas varia\u00e7\u00f5es podem ocorrer devido a impurezas, mudan\u00e7as de press\u00e3o ou condi\u00e7\u00f5es de medi\u00e7\u00e3o.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Termos t\u00e9cnicos importantes utilizados em neg\u00f3cios:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Temperatura do s\u00f3lido:<\/b><span style=\"font-weight: 400;\">A temperatura abaixo da qual o material se torna completamente s\u00f3lido.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Temperatura do l\u00edquido:<\/b><span style=\"font-weight: 400;\">A temperatura acima da qual o material se torna completamente l\u00edquido.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ponto de equil\u00edbrio de fases:<\/b><span style=\"font-weight: 400;\">A temperatura espec\u00edfica na qual as fases s\u00f3lida e l\u00edquida est\u00e3o em equil\u00edbrio.<\/span><\/li>\n<\/ul>\n<h2><b>Por que o ponto de fus\u00e3o do cobre \u00e9 importante<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">O ponto de fus\u00e3o do cobre n\u00e3o \u00e9 apenas um n\u00famero; \u00e9 fundamental para:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Trabalho de fundi\u00e7\u00e3o e moldagem:<\/b><span style=\"font-weight: 400;\">Determina as temperaturas do forno e os materiais do molde.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Soldagem e brasagem:<\/b><span style=\"font-weight: 400;\">Orienta a sele\u00e7\u00e3o de metais de adi\u00e7\u00e3o e a entrada de calor.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Processamento t\u00e9rmico:<\/b><span style=\"font-weight: 400;\">Utilizado para otimizar os cronogramas de recozimento e recristaliza\u00e7\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Desenvolvimento de ligas:<\/b><span style=\"font-weight: 400;\">Determina como o cobre \u00e9 ligado ao zinco, estanho, n\u00edquel e outros metais.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Fabrica\u00e7\u00e3o de componentes el\u00e9tricos:<\/b><span style=\"font-weight: 400;\">Impacta processos como trefila\u00e7\u00e3o de fios e produ\u00e7\u00e3o de conectores.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">O desempenho e a confiabilidade dos produtos acabados muitas vezes dependem do controle dos ciclos t\u00e9rmicos em rela\u00e7\u00e3o ao comportamento de fus\u00e3o do cobre.<\/span><\/p>\n<h2><b>No\u00e7\u00f5es b\u00e1sicas sobre o cobre: \u200b\u200bcomposi\u00e7\u00e3o e estrutura<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Para entender o processo de fus\u00e3o, \u00e9 preciso conhecer a natureza elementar do cobre:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u00edmbolo At\u00f4mico:<\/b><span style=\"font-weight: 400;\">Com<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>N\u00famero At\u00f4mico:<\/b><span style=\"font-weight: 400;\">29<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Estrutura cristalina:<\/b><span style=\"font-weight: 400;\">C\u00fabico de Faces Centradas (FCC)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Densidade (s\u00f3lido a 20\u00b0C):<\/b><span style=\"font-weight: 400;\">~8,96 g\/cm\u00b3<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Condutividade t\u00e9rmica:<\/b><span style=\"font-weight: 400;\">~401 W\/m\u00b7K (muito alto entre os metais)<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A estrutura c\u00fabica de faces centradas (CFC) do cobre contribui para sua ductilidade e ponto de fus\u00e3o relativamente alto em compara\u00e7\u00e3o com metais como o alum\u00ednio (660\u00b0C), mas inferior ao de metais refrat\u00e1rios como o tungst\u00eanio.<\/span><\/p>\n<h2><b>Fatores que influenciam o comportamento de fus\u00e3o<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Embora o cobre puro tenha um ponto de fus\u00e3o conhecido, as condi\u00e7\u00f5es do mundo real frequentemente envolvem influ\u00eancias que alteram ou ampliam o comportamento de fus\u00e3o:<\/span><\/p>\n<h3><b>Pureza e impurezas<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Elementos tra\u00e7o como oxig\u00eanio, enxofre e chumbo podem diminuir o ponto de fus\u00e3o efetivo, introduzindo distor\u00e7\u00f5es na estrutura cristalina e alterando o comportamento de solidifica\u00e7\u00e3o.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Impureza<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Efeito t\u00edpico no cobre<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Oxig\u00eanio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pode formar \u00f3xidos; reduz ligeiramente o comportamento de fus\u00e3o local.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Liderar<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Normalmente, reduz o ponto de fus\u00e3o em regi\u00f5es localizadas.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Enxofre<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Promove fragilidade; afeta marginalmente as caracter\u00edsticas de fus\u00e3o.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">F\u00f3sforo<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pode ajudar a remover o oxig\u00eanio; influencia a fluidez da fus\u00e3o.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><b>Elementos de liga<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">O cobre forma muitas ligas (lat\u00f5es, bronzes, cupron\u00edquel) com pontos de fus\u00e3o distintos.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Tipo de liga<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Elemento(s) de liga prim\u00e1rio(s)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Faixa de fus\u00e3o aproximada<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Lat\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Zinco<\/span><\/td>\n<td><span style=\"font-weight: 400;\">900\u2013940\u00b0C<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Bronze<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Acreditar<\/span><\/td>\n<td><span style=\"font-weight: 400;\">950\u20131.050\u00b0C<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cupron\u00edquel<\/span><\/td>\n<td><span style=\"font-weight: 400;\">N\u00edquel<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.100\u20131.200\u00b0C<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cobre Ber\u00edlio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ber\u00edlio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">865\u20131.000 \u00b0C<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">A adi\u00e7\u00e3o de elementos de liga amplia a faixa de fus\u00e3o porque as misturas n\u00e3o possuem um \u00fanico ponto de fus\u00e3o uniforme.<\/span><\/p>\n<h3><b>Condi\u00e7\u00f5es de press\u00e3o<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Embora as medi\u00e7\u00f5es padr\u00e3o do ponto de fus\u00e3o sejam feitas a 1 atmosfera, varia\u00e7\u00f5es na press\u00e3o (condi\u00e7\u00f5es muito altas ou de v\u00e1cuo) podem modificar ligeiramente o comportamento de fus\u00e3o.<\/span><\/p>\n<h3><b>Tamanho do gr\u00e3o e microestrutura<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Condi\u00e7\u00f5es metal\u00fargicas como tamanho do gr\u00e3o, trabalho a frio e hist\u00f3rico t\u00e9rmico influenciam a forma como o calor \u00e9 absorvido, mas n\u00e3o alteram o equil\u00edbrio fundamental de fus\u00e3o.<\/span><\/p>\n<h2><b>T\u00e9cnicas de Medi\u00e7\u00e3o do Ponto de Fus\u00e3o<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A medi\u00e7\u00e3o precisa do ponto de fus\u00e3o do cobre \u00e9 essencial para a calibra\u00e7\u00e3o e o controle de qualidade.<\/span><\/p>\n<h3><b>Calorimetria diferencial de varredura (DSC)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">A DSC mede o fluxo de calor para uma amostra \u00e0 medida que a temperatura aumenta, detectando transi\u00e7\u00f5es de fase. O in\u00edcio da fus\u00e3o \u00e9 observado como um pico endot\u00e9rmico.<\/span><\/p>\n<h3><b>Termopares em fornos controlados<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Termopares de alta precis\u00e3o (por exemplo, tipo B, R, S) medem a temperatura no momento da mudan\u00e7a de fase.<\/span><\/p>\n<h3><b>Pirometria \u00d3ptica<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Utilizados em altas temperaturas, os pir\u00f4metros \u00f3pticos medem a radia\u00e7\u00e3o t\u00e9rmica emitida por uma amostra em fus\u00e3o dentro de fornos.<\/span><\/p>\n<h3><b>M\u00e9todos de detec\u00e7\u00e3o de s\u00f3lidos\/l\u00edquidos<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Na an\u00e1lise de ligas met\u00e1licas, a observa\u00e7\u00e3o microsc\u00f3pica determina os pontos de solidus e liquidus para definir uma faixa de fus\u00e3o.<\/span><\/p>\n<h3><b>Par\u00e2metros t\u00edpicos de configura\u00e7\u00e3o experimental<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Par\u00e2metro<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Configura\u00e7\u00e3o t\u00edpica<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Atmosfera<\/span><\/td>\n<td><span style=\"font-weight: 400;\">G\u00e1s inerte ou v\u00e1cuo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Taxa de aquecimento<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5\u201320\u00b0C\/min<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tamanho da amostra<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pequena massa padr\u00e3o (~1\u20135 g)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Calibra\u00e7\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Metais de refer\u00eancia padr\u00e3o (por exemplo, ouro, platina)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>Cobre em aplica\u00e7\u00f5es industriais: Relev\u00e2ncia do ponto de fus\u00e3o<\/b><\/h2>\n<h3><b>Projeto de Fundi\u00e7\u00e3o e Moldes<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">O cobre e suas ligas s\u00e3o amplamente fundidos em lingotes, tarugos e formatos complexos.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Temperaturas do forno: Normalmente ajustadas entre 50 e 150 \u00b0C acima do ponto de fus\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Materiais do molde: Devem suportar temperaturas acima de 1.100\u00b0C.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Taxas de resfriamento: influenciam a microestrutura e as propriedades finais.<\/span><\/li>\n<\/ul>\n<h3><b>Processos de soldagem e uni\u00e3o<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Processos como soldagem TIG, soldagem MIG e brasagem dependem do comportamento do material fundido:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Controle de entrada de calor:<\/b><span style=\"font-weight: 400;\">Fundamental para evitar o crescimento excessivo dos gr\u00e3os.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Sele\u00e7\u00e3o de enchimento:<\/b><span style=\"font-weight: 400;\">Comparar as faixas de fus\u00e3o com o metal base.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pr\u00e9-aquecimento:<\/b><span style=\"font-weight: 400;\">\u00c0s vezes usado para reduzir gradientes t\u00e9rmicos.<\/span><\/li>\n<\/ul>\n<h3><b>Conforma\u00e7\u00e3o e fabrica\u00e7\u00e3o de metais<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Embora as opera\u00e7\u00f5es de conforma\u00e7\u00e3o ocorram abaixo do ponto de fus\u00e3o, o conhecimento do amolecimento t\u00e9rmico pr\u00f3ximo ao ponto de fus\u00e3o \u00e9 \u00fatil:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Lamina\u00e7\u00e3o a quente:<\/b><span style=\"font-weight: 400;\">Normalmente realizado a temperaturas entre 600\u00b0C e 900\u00b0C.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Recozimento:<\/b><span style=\"font-weight: 400;\">Um processo de amolecimento realizado abaixo do ponto de fus\u00e3o (aproximadamente 600\u2013700 \u00b0C).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Recristaliza\u00e7\u00e3o:<\/b><span style=\"font-weight: 400;\">Um processo de tratamento t\u00e9rmico utilizado para melhorar a estrutura dos gr\u00e3os.<\/span><\/li>\n<\/ul>\n<h3><b>Sistemas eletr\u00f4nicos e el\u00e9tricos<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">A excelente condutividade do cobre o torna essencial para:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Trefila\u00e7\u00e3o de fios:<\/b><span style=\"font-weight: 400;\">Requer trabalho controlado e ciclos de recozimento.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Produ\u00e7\u00e3o de conectores:<\/b><span style=\"font-weight: 400;\">Os perfis t\u00e9rmicos devem evitar aproximar-se dos limiares de fus\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Soldagem:<\/b><span style=\"font-weight: 400;\">As almofadas de cobre nas placas de circuito impresso interagem com ligas de solda de ponto de fus\u00e3o mais baixo.<\/span><\/li>\n<\/ul>\n<h2><b>Tabela de dados: Pontos de fus\u00e3o comuns de ligas de cobre<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Segue abaixo um resumo das caracter\u00edsticas de fus\u00e3o das ligas de cobre mais utilizadas na ind\u00fastria:<\/span><\/p>\n<h3><b>Faixas de temperatura para s\u00f3lidos e l\u00edquidos<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Nome da liga<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Composi\u00e7\u00e3o (Aditivos Prim\u00e1rios)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">S\u00f3lido (\u00b0C)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">L\u00edquido (\u00b0C)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cobre C11000 (99,9% Cu)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cobre puro<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1082<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1085<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C101 Lat\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Aproximadamente 70% Cu, 30% Zn<\/span><\/td>\n<td><span style=\"font-weight: 400;\">907<\/span><\/td>\n<td><span style=\"font-weight: 400;\">920<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C260 Lat\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Aproximadamente 70% Cu, 30% Zn<\/span><\/td>\n<td><span style=\"font-weight: 400;\">880<\/span><\/td>\n<td><span style=\"font-weight: 400;\">940<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C932 Bronze<\/span><\/td>\n<td><span style=\"font-weight: 400;\">~95% Cu, 5% Sn<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1005<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1045<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cobre Ber\u00edlio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cu + 0,5\u20133% Be<\/span><\/td>\n<td><span style=\"font-weight: 400;\">865<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.000<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cupron\u00edquel 70\/30<\/span><\/td>\n<td><span style=\"font-weight: 400;\">70% Cu, 30% Ni<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.175<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.200<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Bronze de alum\u00ednio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cu + 8\u201311% Al<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.020<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.050<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Esta tabela destaca como a adi\u00e7\u00e3o de elementos de liga impacta o comportamento pr\u00e1tico de fus\u00e3o e as janelas de processamento.<\/span><\/p>\n<h2><b>Conceitos Termodin\u00e2micos: Entalpia e Capacidade T\u00e9rmica<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A energia necess\u00e1ria para fundir o cobre \u00e9 t\u00e3o importante quanto a pr\u00f3pria temperatura de fus\u00e3o. Essa propriedade determina a quantidade de calor que deve ser fornecida durante a fus\u00e3o e a fundi\u00e7\u00e3o.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Propriedade<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Valor<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Capacidade t\u00e9rmica (s\u00f3lido a 25\u00b0C)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">~0,385 J\/g\u00b7K<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Calor de fus\u00e3o (cobre)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">~13,05 kJ\/mol<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\n<td><span style=\"font-weight: 400;\">~16,5 \u00b5m\/m\u00b7K<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Compreender esses valores permite aos engenheiros:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Calcule as necessidades energ\u00e9ticas dos fornos de fus\u00e3o e de manuten\u00e7\u00e3o de temperatura.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Prever a expans\u00e3o t\u00e9rmica durante o aquecimento e o resfriamento.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Modelagem da transfer\u00eancia de calor em moldes e matrizes de fundi\u00e7\u00e3o.<\/span><\/li>\n<\/ul>\n<h2><b>Comportamento de fus\u00e3o do cobre em compara\u00e7\u00e3o com outros metais<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Uma vis\u00e3o geral comparativa dos pontos de fus\u00e3o fornece contexto para a sele\u00e7\u00e3o de materiais em aplica\u00e7\u00f5es t\u00e9rmicas.<\/span><\/p>\n<h3><b>Tabela comparativa de pontos de fus\u00e3o<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Metal<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ponto de fus\u00e3o (\u00b0C)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Alum\u00ednio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">660<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cobre<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.084<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ferro<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.538<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">N\u00edquel<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.455<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ouro<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.064<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Prata<\/span><\/td>\n<td><span style=\"font-weight: 400;\">961<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tit\u00e2nio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.668<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tungst\u00eanio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3.422<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Principais conclus\u00f5es:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Em compara\u00e7\u00e3o com o alum\u00ednio e a prata, o cobre funde a uma temperatura mais alta.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">O ponto de fus\u00e3o do cobre \u00e9 semelhante ao do ouro, ligeiramente superior.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00c9 significativamente menor do que metais refrat\u00e1rios como o tungst\u00eanio e o tit\u00e2nio.<\/span><\/li>\n<\/ul>\n<h2><b>Diagrama de fases das ligas de cobre<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Os diagramas de fases para sistemas bin\u00e1rios (por exemplo, lat\u00e3o Cu-Zn, bronze Cu-Sn) s\u00e3o fundamentais para a compreens\u00e3o das faixas de fus\u00e3o, dos caminhos de solidifica\u00e7\u00e3o e das microestruturas formadas durante o resfriamento.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Enquanto o sistema cobre-cobre possui um \u00fanico ponto para o cobre puro, as ligas de cobre exibem regi\u00f5es eut\u00e9ticas, perit\u00e9ticas ou de solu\u00e7\u00e3o s\u00f3lida, dependendo da composi\u00e7\u00e3o.<\/span><\/p>\n<h3><b>Exemplo: An\u00e1lises do diagrama de lat\u00e3o Cu-Zn<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Com teores de zinco abaixo de aproximadamente 35%, o lat\u00e3o forma uma solu\u00e7\u00e3o s\u00f3lida substitutiva.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Em teores mais elevados de zinco, surgem fases intermet\u00e1licas, ampliando a faixa de fus\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Os pontos eut\u00e9ticos definem as composi\u00e7\u00f5es com os menores pontos de fus\u00e3o.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Estes diagramas servem de guia:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sele\u00e7\u00e3o da liga com base nas temperaturas de fundi\u00e7\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ajustes na taxa de resfriamento para evitar fases indesej\u00e1veis.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Estrat\u00e9gias de tratamento t\u00e9rmico para melhorar as propriedades mec\u00e2nicas.<\/span><\/li>\n<\/ul>\n<h2><b>Normas industriais e classifica\u00e7\u00e3o da fus\u00e3o do cobre<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Os graus e padr\u00f5es de cobre definem o comportamento de fus\u00e3o aceit\u00e1vel e os limites de impurezas para diversas aplica\u00e7\u00f5es.<\/span><\/p>\n<h3><b>Categorias de Grau Padr\u00e3o<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u00e1todo de cobre:<\/b><span style=\"font-weight: 400;\">Alta pureza, normalmente utilizada para refus\u00e3o e refino.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Piche eletrol\u00edtico resistente (ETP):<\/b><span style=\"font-weight: 400;\">Grau el\u00e9trico padr\u00e3o com teor de oxig\u00eanio controlado.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Cobre isento de oxig\u00eanio:<\/b><span style=\"font-weight: 400;\">Utilizado em aplica\u00e7\u00f5es el\u00e9tricas e de v\u00e1cuo de alta pureza.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Cobre desoxidado com alto teor de f\u00f3sforo:<\/b><span style=\"font-weight: 400;\">Caracter\u00edsticas aprimoradas de brasagem e forjamento.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A sele\u00e7\u00e3o da classe de grau de fus\u00e3o afeta o comportamento de fus\u00e3o porque:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">O oxig\u00eanio e os elementos de liga alteram as propriedades t\u00e9rmicas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u00e3o escolhidas classes espec\u00edficas de materiais devido \u00e0 sua compatibilidade com processos t\u00e9rmicos.<\/span><\/li>\n<\/ul>\n<h3><b>Especifica\u00e7\u00f5es padr\u00e3o t\u00edpicas<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Nota<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pureza<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Uso t\u00edpico<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C11000<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&gt;99,9%<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fia\u00e7\u00e3o el\u00e9trica, alta condutividade<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C10200<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&gt;99,95%<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Uso em laborat\u00f3rio, requisitos de alta pureza<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C12000<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Liga Cu-Zn<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Acess\u00f3rios de lat\u00e3o<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C19400<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Liga Cu-Ni<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ferragens mar\u00edtimas, resist\u00eancia \u00e0 corros\u00e3o<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>Considera\u00e7\u00f5es pr\u00e1ticas nas opera\u00e7\u00f5es de fus\u00e3o de cobre<\/b><\/h2>\n<h3><b>Sele\u00e7\u00e3o e opera\u00e7\u00e3o do forno<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Diferentes equipamentos de fus\u00e3o s\u00e3o utilizados dependendo da escala e das necessidades de precis\u00e3o:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fornos de reverbera\u00e7\u00e3o: Fus\u00e3o de grandes lotes com atmosfera controlada.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fornos de indu\u00e7\u00e3o: Aquecimento eficiente e localizado com ciclos de fus\u00e3o r\u00e1pidos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fornos de cadinho: Fus\u00e3o de pequenos lotes ou ligas especiais.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Os sistemas de controle de temperatura devem manter a estabilidade acima do ponto de fus\u00e3o, minimizando a oxida\u00e7\u00e3o ou a perda de liga.<\/span><\/p>\n<h3><b>Fluxos e Controle da Atmosfera<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Materiais de fluxo e atmosferas controladas (gases inertes, ambientes redutores) s\u00e3o usados \u200b\u200bpara:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reduzir a oxida\u00e7\u00e3o do cobre fundido.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Capturar impurezas e esc\u00f3ria.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Melhorar a qualidade da superf\u00edcie das pe\u00e7as fundidas.<\/span><\/li>\n<\/ul>\n<h3><b>Materiais de moldagem e transfer\u00eancia de calor<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">A escolha do molde \u00e9 crucial:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Moldes de areia para fundi\u00e7\u00f5es grandes e brutas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Moldes de cer\u00e2mica ou metal para alta precis\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As caracter\u00edsticas de transfer\u00eancia de calor influenciam as taxas de resfriamento e a microestrutura.<\/span><\/li>\n<\/ul>\n<h3><b>Controle de resfriamento e solidifica\u00e7\u00e3o<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">O gerenciamento e o controle do resfriamento s\u00e3o cruciais para alcan\u00e7ar as qualidades mec\u00e2nicas necess\u00e1rias:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A solidifica\u00e7\u00e3o direcional evita a porosidade por contra\u00e7\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Aletas e dutos de resfriamento aceleram o processo de refrigera\u00e7\u00e3o onde necess\u00e1rio.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Programas de resfriamento controlados melhoram a resist\u00eancia e o refinamento dos gr\u00e3os.<\/span><\/li>\n<\/ul>\n<h2><b>Problemas e defeitos comuns relacionados \u00e0 fus\u00e3o<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Certos defeitos surgem durante a fus\u00e3o, o vazamento ou o resfriamento:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Defeito<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Descri\u00e7\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Rela\u00e7\u00e3o com a fus\u00e3o<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Porosidade<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Bolsas de g\u00e1s dentro da pe\u00e7a fundida<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Desgaseifica\u00e7\u00e3o inadequada da fus\u00e3o<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Fechamentos a frio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">limites n\u00e3o fundidos<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Enchimento incompleto ou temperatura de fus\u00e3o baixa<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Inclus\u00f5es<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Esc\u00f3ria ou \u00f3xidos aprisionados<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fluxo inadequado<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Estalos a quente<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Rachaduras no resfriamento<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Altos gradientes t\u00e9rmicos<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Compreender o comportamento do cobre durante o processo de fus\u00e3o e solidifica\u00e7\u00e3o ajuda a prevenir esses defeitos.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O cobre \u00e9 um dos metais mais antigos e mais utilizados pela humanidade, apreciado pela sua condutividade, ductilidade e resist\u00eancia \u00e0 corros\u00e3o. Uma caracter\u00edstica f\u00edsica essencial que influencia o processamento, a liga e a utiliza\u00e7\u00e3o do metal em processos industriais e de fabrico \u00e9 o seu ponto de fus\u00e3o.<\/p>\n","protected":false},"author":1,"featured_media":18378,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[88],"tags":[],"class_list":["post-18377","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts\/18377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/comments?post=18377"}],"version-history":[{"count":1,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts\/18377\/revisions"}],"predecessor-version":[{"id":18382,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts\/18377\/revisions\/18382"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/media\/18378"}],"wp:attachment":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/media?parent=18377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/categories?post=18377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/tags?post=18377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}