{"id":5085,"date":"2024-11-27T17:12:40","date_gmt":"2024-11-27T09:12:40","guid":{"rendered":"https:\/\/ots-testequipment.net\/?p=5085"},"modified":"2024-12-13T15:57:41","modified_gmt":"2024-12-13T07:57:41","slug":"como-efetuar-um-ensaio-de-nevoa-salina","status":"publish","type":"post","link":"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/","title":{"rendered":"Como efetuar um teste de pulveriza\u00e7\u00e3o de sal?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar o \u00edndice\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#First_What_is_Salt_Spray_Testing\" >Primeiro, o que \u00e9 o teste de n\u00e9voa salina<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Things_You_Must_Know_Before_Starting_Salt_Spray_Tests\" >O que deve saber antes de iniciar os ensaios de pulveriza\u00e7\u00e3o de sal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Factors_Affecting_Salt_Spray_Testing\" >Factores que afectam os ensaios de n\u00e9voa salina<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Relative_Humidity\" >Humidade relativa<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#pH_of_the_solution\" >pH da solu\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Test_Temperature\" >Temperatura de ensaio<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Salt_Spray_Deposition\" >Deposi\u00e7\u00e3o de salitre<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Sample_Placement\" >Coloca\u00e7\u00e3o de amostras<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Salt_Solution_Concentration\" >Concentra\u00e7\u00e3o da solu\u00e7\u00e3o salina<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Procedure_for_Salt_Spray_Test\" >Procedimento para o ensaio de pulveriza\u00e7\u00e3o de sal<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Start_With_Sample_Preparation\" >Come\u00e7ar com a prepara\u00e7\u00e3o da amostra<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Prepare_Salt_Solution\" >Preparar a solu\u00e7\u00e3o salina<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Setting_the_Chamber\" >Configura\u00e7\u00e3o da c\u00e2mara<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Execute\" >Executar<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Examination\" >Exame<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Precautions\" >Precau\u00e7\u00f5es<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#What_are_the_Applications_of_Salt_Spray_Test\" >Quais s\u00e3o as aplica\u00e7\u00f5es do teste de n\u00e9voa salina?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Different_Types_of_Salt_Spray_Tests\" >Diferentes tipos de ensaios de pulveriza\u00e7\u00e3o de sal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Advantages_of_Corrosion_Testing\" >Vantagens dos ensaios de corros\u00e3o<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Product_Durability\" >Durabilidade do produto<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Affordable\" >Acess\u00edvel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Versatility\" >Versatilidade<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Better_Products_for_the_Real_World\" >Melhores produtos para o mundo real<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Which_is_the_Best_Salt_Spray_Test_Chamber\" >Qual \u00e9 a melhor c\u00e2mara de teste de n\u00e9voa salina?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-perform-a-salt-spray-test\/#Way_Forward\" >Caminho a seguir<\/a><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-weight: 400;\">\u00c9 poss\u00edvel que j\u00e1 tenha ouvido o termo \"teste de n\u00e9voa salina\". Mas sabe o que \u00e9 que isso significa realmente? Mesmo que n\u00e3o o saiba, estamos aqui para o ajudar antes do fim. Mas antes disso, diga-nos, quantas vezes j\u00e1 viu corros\u00e3o em metal? Pode ser v\u00e1rias vezes. \u00c9 uma das maiores amea\u00e7as ao metal. Bem, este \u00e9 um processo natural que pode ser evitado utilizando uma camada protetora. Acertou em cheio! \u00c9 por isso que os metais s\u00e3o frequentemente revestidos com outra camada para minimizar as reac\u00e7\u00f5es redox. Agora, imagine s\u00f3, e se esta camada n\u00e3o for suficientemente capaz? O metal continua a estar sujeito \u00e0 corros\u00e3o. \u00c9 aqui que os testes de n\u00e9voa salina v\u00eam em socorro. Vamos aprender mais sobre os testes de n\u00e9voa salina e o seu processo.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"First_What_is_Salt_Spray_Testing\"><\/span><b>Primeiro, o que \u00e9 o teste de n\u00e9voa salina<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone wp-image-5109\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/What-is-Salt-Spray-Testing-300x225.webp\" alt=\"O que \u00e9 o teste de n\u00e9voa salina\" width=\"501\" height=\"376\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/What-is-Salt-Spray-Testing-300x225.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/What-is-Salt-Spray-Testing-768x576.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/What-is-Salt-Spray-Testing-16x12.webp 16w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/What-is-Salt-Spray-Testing.webp 1000w\" sizes=\"(max-width: 501px) 100vw, 501px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Comecemos o blogue por compreender o significado do teste de n\u00e9voa salina. <\/span><b><i>O que \u00e9 o teste de n\u00e9voa salina?<\/i><\/b><span style=\"font-weight: 400;\"> O ensaio de n\u00e9voa salina \u00e9 um ensaio cient\u00edfico que verifica a capacidade do escudo protetor. O princ\u00edpio principal do ensaio de n\u00e9voa salina \u00e9 o facto de poder avaliar a consist\u00eancia do revestimento da superf\u00edcie. Agora, pode estar a perguntar-se: qual \u00e9 o processo real? No ensaio de nevoeiro salino, o metal com o revestimento \u00e9 submetido a uma temperatura de 37 graus Celsius. A n\u00e9voa salina ajuda ent\u00e3o a avaliar o produto e as suas qualidades. Os resultados s\u00e3o apresentados quando a membrana protetora de metal \u00e9 exposta a vapores cont\u00ednuos de cloreto de s\u00f3dio. Agora, a verdadeira quest\u00e3o \u00e9 como \u00e9 que se pode efetuar o teste.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Things_You_Must_Know_Before_Starting_Salt_Spray_Tests\"><\/span><b>O que deve saber antes de iniciar os ensaios de pulveriza\u00e7\u00e3o de sal<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Antes de iniciar os testes de pulveriza\u00e7\u00e3o de sal, h\u00e1 algumas coisas que deve saber.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Os ensaios de nevoeiro salino s\u00e3o geralmente efectuados em laborat\u00f3rio, tendo em conta todas as normas de seguran\u00e7a.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Antes de colocar a amostra no ensaio, certificar-se de que est\u00e1 100% limpa. A superf\u00edcie deve ser processada para garantir que n\u00e3o interfere com o teste.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Verificar sempre a concentra\u00e7\u00e3o do solvente na c\u00e2mara para obter resultados eficazes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Assegurar que a amostra \u00e9 retirada da cadeira ap\u00f3s o tempo de exposi\u00e7\u00e3o. Isto manter\u00e1 a efic\u00e1cia do produto. A dura\u00e7\u00e3o do ensaio de n\u00e9voa salina depende do metal e da resist\u00eancia \u00e0 corros\u00e3o pretendida.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Na c\u00e2mara de ensaio, montar corretamente as amostras para garantir uma exposi\u00e7\u00e3o uniforme e evitar falhas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Siga sempre as diretrizes ou regulamentos padr\u00e3o para fazer corresponder os resultados dos seus testes. As melhores normas s\u00e3o a ISO 9227 ou a ASTM B117, que fornecem instru\u00e7\u00f5es pormenorizadas para o processo. Normas exactas s\u00e3o respons\u00e1veis por resultados consistentes e precisos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">De acordo com as normas do sector, o volume da n\u00e9voa n\u00e3o deve exceder os 5 ml.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Factors_Affecting_Salt_Spray_Testing\"><\/span><b>Factores que afectam os ensaios de n\u00e9voa salina<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-5107\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Factors-Affecting-Salt-Spray-Testing-300x225.webp\" alt=\"Factores que afectam os ensaios de n\u00e9voa salina\" width=\"500\" height=\"375\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Factors-Affecting-Salt-Spray-Testing-300x225.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Factors-Affecting-Salt-Spray-Testing-768x576.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Factors-Affecting-Salt-Spray-Testing-16x12.webp 16w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Factors-Affecting-Salt-Spray-Testing.webp 1000w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Diferentes factores afectam os resultados dos ensaios de pulveriza\u00e7\u00e3o de sal. Segue-se uma lista destes factores de influ\u00eancia:<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Relative_Humidity\"><\/span><b>Humidade relativa<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Os principais factores s\u00e3o a humidade relativa e a temperatura. Em geral, a humidade relativa deve ser de cerca de 70%. A humidade relativa tem um impacto significativo na concentra\u00e7\u00e3o, que tem uma rela\u00e7\u00e3o inversa.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"pH_of_the_solution\"><\/span><b>pH da solu\u00e7\u00e3o<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">De seguida, vem o pH da solu\u00e7\u00e3o. Quanto mais elevado for o pH, mais elevada \u00e9 a concentra\u00e7\u00e3o de \u00e1cido e mais corrosivo \u00e9 o ambiente. No entanto, \u00e9 necess\u00e1rio manter o pH ideal, uma vez que este est\u00e1 sempre a mudar.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Test_Temperature\"><\/span><b>Temperatura de ensaio<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">O fator de influ\u00eancia seguinte \u00e9 a temperatura de ensaio, que \u00e9 diretamente proporcional \u00e0 taxa de corros\u00e3o por n\u00e9voa salina. A temperatura ideal \u00e9 de 35 graus Celsius, mas qualquer temperatura extremamente alta ou baixa n\u00e3o \u00e9 adequada para a experi\u00eancia.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Salt_Spray_Deposition\"><\/span><b>Deposi\u00e7\u00e3o de salitre<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Outro fator que define o ensaio de n\u00e9voa salina \u00e9 a quantidade de deposi\u00e7\u00e3o. As part\u00edculas de n\u00e9voa salina mais densas podem formar uma \u00e1rea de superf\u00edcie m\u00e1xima, permitindo uma maior adsor\u00e7\u00e3o de oxig\u00e9nio. Por outras palavras, as part\u00edculas finas resultam numa maior corros\u00e3o. Da mesma forma, o m\u00e9todo de pulveriza\u00e7\u00e3o de sal tamb\u00e9m tem um papel importante, uma vez que afecta a composi\u00e7\u00e3o da pulveriza\u00e7\u00e3o de sal.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sample_Placement\"><\/span><b>Coloca\u00e7\u00e3o de amostras<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Tamb\u00e9m tem a ver com a coloca\u00e7\u00e3o da amostra. A coloca\u00e7\u00e3o da amostra determina a dire\u00e7\u00e3o da pulveriza\u00e7\u00e3o, afectando a corros\u00e3o e a sua intensidade.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Salt_Solution_Concentration\"><\/span><b>Concentra\u00e7\u00e3o da solu\u00e7\u00e3o salina<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Outro fator \u00e9 a concentra\u00e7\u00e3o da solu\u00e7\u00e3o salina. A concentra\u00e7\u00e3o decide as taxas de corros\u00e3o com base no material da camada protetora. Por exemplo, a corros\u00e3o do zinco ou do cobre aumenta com a densidade da solu\u00e7\u00e3o.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Procedure_for_Salt_Spray_Test\"><\/span><b>Procedimento para o ensaio de pulveriza\u00e7\u00e3o de sal<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-5108\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Procedure-for-Salt-Spray-Test-300x225.webp\" alt=\"Procedimento para o ensaio de pulveriza\u00e7\u00e3o de sal\" width=\"500\" height=\"375\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Procedure-for-Salt-Spray-Test-300x225.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Procedure-for-Salt-Spray-Test-768x576.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Procedure-for-Salt-Spray-Test-16x12.webp 16w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/11\/Procedure-for-Salt-Spray-Test.webp 1000w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Agora vem a grande quest\u00e3o: qual \u00e9 o procedimento correto para o teste de pulveriza\u00e7\u00e3o de sal? Eis os passos que deve seguir para garantir o \u00eaxito da sua experi\u00eancia. Em geral, o teste de n\u00e9voa salina \u00e9 classificado em duas etapas. A primeira envolve a limpeza e a segunda \u00e9 a monitoriza\u00e7\u00e3o. Vejamos agora estes passos em pormenor:<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Start_With_Sample_Preparation\"><\/span><b>Come\u00e7ar com a prepara\u00e7\u00e3o da amostra<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Iniciar o processo com a limpeza da amostra. Remova a sujidade, o p\u00f3, a gordura e outros poluentes da amostra de metal. Deve tamb\u00e9m mascarar a \u00e1rea que n\u00e3o pretende expor ao nevoeiro salino.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Prepare_Salt_Solution\"><\/span><b>Preparar a solu\u00e7\u00e3o salina<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Agora vem o passo principal: preparar a solu\u00e7\u00e3o salina para o teste do sal. Eis o que tem de fazer:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Preparar uma solu\u00e7\u00e3o de cloreto de s\u00f3dio (NaCl) 5% utilizando \u00e1gua desionizada.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Assegurar um pH equilibrado, normalmente entre 6,5 e 7,5, para manter a solu\u00e7\u00e3o neutra.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Setting_the_Chamber\"><\/span><b>Configura\u00e7\u00e3o da c\u00e2mara<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">A c\u00e2mara desempenha um papel importante no ensaio de nevoeiro salino. Certifique-se de que compra uma c\u00e2mara da melhor qualidade <\/span><a href=\"https:\/\/ots-testequipment.net\/pt\/produtos\/camara-de-teste-de-pulverizacao-salina-de-precisao\/\"><span style=\"font-weight: 400;\">c\u00e2mara de ensaio de n\u00e9voa salina<\/span><\/a><span style=\"font-weight: 400;\">. Manter todas as amostras na c\u00e2mara de pulveriza\u00e7\u00e3o de sal acima das suas posi\u00e7\u00f5es designadas. Controlar a temperatura do ambiente em cerca de 35 graus Celsius.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Execute\"><\/span><b>Executar<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Aqui chega o passo mais emocionante do teste, ou seja, a execu\u00e7\u00e3o:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Arranque a c\u00e2mara ou o sistema de gera\u00e7\u00e3o. Ver\u00e1 uma massa cont\u00ednua de cloreto de s\u00f3dio na c\u00e2mara.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Durante todo o ensaio, manter o controlo da temperatura e monitorizar as condi\u00e7\u00f5es da c\u00e2mara. Ao mesmo tempo, equilibrar a press\u00e3o de pulveriza\u00e7\u00e3o.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Verificar se a amostra est\u00e1 a desenvolver sinais significativos de corros\u00e3o.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Examination\"><\/span><b>Exame<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Uma vez terminado o ensaio, retirar a amostra da c\u00e2mara dentro do tempo desejado. Limpar a c\u00e2mara e a amostra com \u00e1gua limpa para remover qualquer res\u00edduo. Tomar uma breve nota sobre a corros\u00e3o, registando a sua intensidade e padr\u00f5es. Utilizar os padr\u00f5es definidos para identificar e comparar os tipos com os crit\u00e9rios de aceita\u00e7\u00e3o.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Precautions\"><\/span><b>Precau\u00e7\u00f5es<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Para cada procedimento de teste, existem algumas precau\u00e7\u00f5es que devem ser tidas em conta:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u00e3o interferir com a c\u00e2mara at\u00e9 o ensaio estar conclu\u00eddo. N\u00e3o a abra nem a perturbe para garantir a seguran\u00e7a contra os fumos, mas isso pode resultar em observa\u00e7\u00f5es de ensaio incorrectas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mantenha a dist\u00e2ncia ideal entre as paredes da c\u00e2mara e a amostra de metal. Se mantiver o metal muito pr\u00f3ximo da parede, pode resultar num aquecimento excessivo.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u00e3o abra a c\u00e2mara diretamente com as suas m\u00e3os nuas. Em vez disso, use a purga. Deixar a n\u00e9voa salina assentar antes de a abrir para os arredores.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Controlar o copo de recolha de n\u00e9voa para manter uma n\u00e9voa \u00f3ptima no interior da c\u00e2mara.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_are_the_Applications_of_Salt_Spray_Test\"><\/span><b>Quais s\u00e3o as aplica\u00e7\u00f5es do teste de n\u00e9voa salina?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Agora j\u00e1 sabe que o teste de nevoeiro salino \u00e9 um verificador de corros\u00e3o. Ajuda a estimular o efeito ambiental do metal numa exposi\u00e7\u00e3o a longo prazo. Eis as aplica\u00e7\u00f5es industriais comuns dos ensaios de n\u00e9voa salina:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A efic\u00e1cia das pe\u00e7as de m\u00e1quinas utilizadas na ind\u00fastria naval, aeroespacial e de defesa \u00e9 determinada utilizando a mesma t\u00e9cnica. Os fabricantes OEM tamb\u00e9m utilizam a mesma t\u00e9cnica para determinar a efic\u00e1cia das suas pe\u00e7as de m\u00e1quinas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Examinar a longevidade dos materiais em todos os tipos de ambientes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Avaliar a resist\u00eancia do metal \u00e0 corros\u00e3o sob o efeito elevado da \u00e1gua salgada e do ar.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Different_Types_of_Salt_Spray_Tests\"><\/span><b>Diferentes tipos de ensaios de pulveriza\u00e7\u00e3o de sal<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">S\u00e3o utilizados diferentes ensaios de proje\u00e7\u00e3o salina para servir objectivos \u00fanicos. Estes tipos s\u00e3o diferentes em termos de metodologias e abordagens. Seguem-se alguns tipos, juntamente com a respectiva explica\u00e7\u00e3o:<\/span><\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Tipo<\/b><\/td>\n<td><b>Objetivo<\/b><\/td>\n<\/tr>\n<tr>\n<td><b><i>Ensaio de pulveriza\u00e7\u00e3o salina neutra<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Perfeito para medir a corros\u00e3o em todas as ind\u00fastrias<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i>Ensaio de pulveriza\u00e7\u00e3o de sal com \u00e1cido ac\u00e9tico<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Principalmente utilizado no sector autom\u00f3vel<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i>Ensaios de corros\u00e3o c\u00edclica<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Um tipo rigoroso utilizado para simular ambientes do mundo real<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i>Teste de Kesternich<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">A c\u00e2mara utilizava di\u00f3xido de enxofre para criar ambientes \u00e1cidos<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i>Teste de ades\u00e3o<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Perfeito para exposi\u00e7\u00e3o a longo prazo<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i>Teste SCAB<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Ajuda a avaliar a durabilidade do metal sob condi\u00e7\u00f5es climat\u00e9ricas extremas<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i> Teste SSC<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\">Exposi\u00e7\u00e3o simult\u00e2nea que combina n\u00e9voa salina e di\u00f3xido de enxofre<\/span><\/td>\n<\/tr>\n<tr>\n<td><b><i>Ensaio de nevoeiro salino com exposi\u00e7\u00e3o a UV<\/i><\/b><\/td>\n<td><span style=\"font-weight: 400;\"> Combinar o efeito do nevoeiro salino e da luz solar<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Advantages_of_Corrosion_Testing\"><\/span><b>Vantagens dos ensaios de corros\u00e3o<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Agora que j\u00e1 sabe tudo sobre os ensaios de corros\u00e3o, vamos compreender a sua import\u00e2ncia. Porque \u00e9 que o teste de n\u00e9voa salina \u00e9 importante e porque \u00e9 que os fabricantes o utilizam? Eis os principais benef\u00edcios do teste de n\u00e9voa salina para os fabricantes:<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Product_Durability\"><\/span><b>Durabilidade do produto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">O melhor dos testes \u00e9 o facto de garantirem a durabilidade dos produtos. As chapas de prote\u00e7\u00e3o met\u00e1lica que s\u00e3o submetidas ao teste de n\u00e9voa salina garantem que os produtos duram mais tempo do que o previsto. Os testes tamb\u00e9m poupam tempo aos clientes e aumentam o valor da marca.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Affordable\"><\/span><b>Acess\u00edvel<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Embora o teste de n\u00e9voa salina possa ter uma configura\u00e7\u00e3o dispendiosa, \u00e9 acess\u00edvel a longo prazo. Testar os produtos no in\u00edcio evita custos adicionais e recolhas de mercado em fases posteriores.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Versatility\"><\/span><b>Versatilidade<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">O ensaio por pulveriza\u00e7\u00e3o de sal \u00e9 vers\u00e1til e pode ser utilizado numa vasta gama de metais. \u00c9 tamb\u00e9m acess\u00edvel, o que o torna fi\u00e1vel a longo prazo.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Better_Products_for_the_Real_World\"><\/span><b>Melhores produtos para o mundo real<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Os ensaios de pulveriza\u00e7\u00e3o de sal identificam os melhores revestimentos de prote\u00e7\u00e3o para diferentes metais. Al\u00e9m disso, o ensaio reproduz ambientes dif\u00edceis, que determinam os resultados.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Which_is_the_Best_Salt_Spray_Test_Chamber\"><\/span><b>Qual \u00e9 a melhor c\u00e2mara de teste de n\u00e9voa salina?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Se procura uma c\u00e2mara de ensaio de pulveriza\u00e7\u00e3o de sal de qualidade superior para a sua experi\u00eancia, considere a da OTS Technik. A marca oferece as melhores c\u00e2maras adapt\u00e1veis a todos os tipos de metais sem comprometer a consist\u00eancia.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Way_Forward\"><\/span><b>Caminho a seguir<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p>N\u00e3o h\u00e1 d\u00favida de que o teste de n\u00e9voa salina \u00e9 uma ferramenta crucial para a humanidade. Para todo o processo, a aplica\u00e7\u00e3o mais importante \u00e9 uma c\u00e2mara de n\u00e9voa salina. Com os passos e medidas corretos, \u00e9 poss\u00edvel utilizar o ciclo de teste para identificar a resist\u00eancia dos escudos de prote\u00e7\u00e3o. Este \u00e9 um processo simples que pode satisfazer todos os requisitos de teste. Mas lembre-se de seguir todas as precau\u00e7\u00f5es e diretrizes de seguran\u00e7a nos laborat\u00f3rios de ensaio de n\u00e9voa salina para conseguir este teste de qualidade.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u00c9 poss\u00edvel que j\u00e1 tenha ouvido o termo \"teste de n\u00e9voa salina\". Mas sabe o que \u00e9 que isso significa realmente? Mesmo que n\u00e3o o saiba, estamos aqui para o ajudar antes do fim. Mas antes disso, diga-nos, quantas vezes j\u00e1 viu corros\u00e3o em metal? Pode ser v\u00e1rias vezes. \u00c9 um dos...<\/p>","protected":false},"author":13,"featured_media":5087,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5085","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Salt Spray Test Procedure, Benefits, and Applications<\/title>\n<meta name=\"description\" content=\"Corrosion is one of the biggest threats to the metal. 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