{"id":2675,"date":"2025-05-26T15:01:38","date_gmt":"2025-05-26T07:01:38","guid":{"rendered":"https:\/\/baldor-air.com\/?p=2675"},"modified":"2025-05-26T15:01:38","modified_gmt":"2025-05-26T07:01:38","slug":"porque-e-que-o-oleo-para-compressores-de-ar-requer-uma-excelente-estabilidade-a-oxidacao","status":"publish","type":"post","link":"https:\/\/baldor-air.com\/pt\/porque-e-que-o-oleo-para-compressores-de-ar-requer-uma-excelente-estabilidade-a-oxidacao\/","title":{"rendered":"Porque \u00e9 que o \u00f3leo para compressores de ar requer uma excelente estabilidade \u00e0 oxida\u00e7\u00e3o"},"content":{"rendered":"<p><strong>Compreender os tipos de \u00f3leo para compressores de ar, propriedades e normas de manuten\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p>O \u00f3leo para compressores de ar desempenha um papel fundamental para garantir a fiabilidade, o desempenho e a seguran\u00e7a dos compressores de ar em v\u00e1rios ambientes industriais. A sua fun\u00e7\u00e3o vai muito al\u00e9m da simples lubrifica\u00e7\u00e3o - \u00e9 essencial para o arrefecimento, a veda\u00e7\u00e3o, a prote\u00e7\u00e3o antidesgaste e a preven\u00e7\u00e3o da ferrugem. Uma das carater\u00edsticas mais importantes de um \u00f3leo de compressor de alta qualidade \u00e9 a sua <strong>estabilidade \u00e0 oxida\u00e7\u00e3o<\/strong>o que afecta diretamente a longevidade e a seguran\u00e7a do compressor.<\/p>\n\n\n\n<p>Este guia explica as classifica\u00e7\u00f5es do \u00f3leo para compressores de ar, seus crit\u00e9rios de desempenho e por que a estabilidade da oxida\u00e7\u00e3o \u00e9 crucial. Tamb\u00e9m descreve a sele\u00e7\u00e3o do \u00f3leo, as normas internacionais e os indicadores de substitui\u00e7\u00e3o - ajudando-o a tomar decis\u00f5es informadas para um funcionamento eficiente e seguro do compressor de ar.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"491\" src=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/1151344G0-4.jpg\" alt=\"\u00d3leo para compressor de ar\" class=\"wp-image-2552\" srcset=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/1151344G0-4.jpg 1024w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/1151344G0-4-300x144.jpg 300w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/05\/1151344G0-4-768x368.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/baldor-air.com\/pt\/compressor-de-ar-com-injecao-de-oleo\/\" data-type=\"page\" data-id=\"929\">Tipos de \u00f3leo para compressores de ar<\/a><\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>O \u00f3leo para compressores de ar \u00e9 geralmente classificado com base no <strong>estrutura do compressor<\/strong> e <strong>tipo de \u00f3leo de base<\/strong>:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Por estrutura do compressor:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/baldor-air.com\/pt\/compressor-alternativo\/\" data-type=\"page\" data-id=\"495\">\u00d3leo para compressores alternativos<\/a><\/strong>: Inclui os tipos de carga ligeira (L-DAA), m\u00e9dia (L-DAB) e pesada (L-DAC).<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/baldor-air.com\/pt\/compressor-de-ar-com-injecao-de-oleo\/\" data-type=\"page\" data-id=\"929\">\u00d3leo para compressor rotativo<\/a><\/strong>: Inclui os tipos de carga ligeira (L-DAG), m\u00e9dia (L-DAH) e pesada (L-DAJ).<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Por tipo de \u00f3leo base:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c0 base de \u00f3leo mineral<\/strong><\/li>\n\n\n\n<li><strong>\u00c0 base de \u00f3leo sint\u00e9tico<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Os \u00f3leos sint\u00e9ticos como as polialfaolefinas (PAO), os \u00e9steres e os poliglic\u00f3is oferecem um desempenho superior em condi\u00e7\u00f5es extremas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"352\" src=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/03\/oil-free-1024x352.webp\" alt=\"sem \u00f3leo\" class=\"wp-image-1201\" srcset=\"https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/03\/oil-free-1024x352.webp 1024w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/03\/oil-free-300x103.webp 300w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/03\/oil-free-768x264.webp 768w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/03\/oil-free-1536x528.webp 1536w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/03\/oil-free-600x206.webp 600w, https:\/\/baldor-air.com\/wp-content\/uploads\/2025\/03\/oil-free.webp 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">sem \u00f3leo<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">Fun\u00e7\u00f5es-chave e requisitos de desempenho<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>O \u00f3leo do compressor de ar \u00e9 respons\u00e1vel por:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lubrifica\u00e7\u00e3o de componentes m\u00f3veis<\/li>\n\n\n\n<li>Arrefecimento do sistema<\/li>\n\n\n\n<li>Veda\u00e7\u00e3o de lacunas<\/li>\n\n\n\n<li>Preven\u00e7\u00e3o da ferrugem e da corros\u00e3o<\/li>\n<\/ul>\n\n\n\n<p>Dadas as condi\u00e7\u00f5es de funcionamento a alta press\u00e3o e alta temperatura, o \u00f3leo ideal para compressores deve apresentar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Elevada estabilidade \u00e0 oxida\u00e7\u00e3o<\/strong><\/li>\n\n\n\n<li><strong>Forma\u00e7\u00e3o de res\u00edduos com baixo teor de carbono<\/strong><\/li>\n\n\n\n<li><strong>Viscosidade adequada e comportamento temperatura-viscosidade<\/strong><\/li>\n\n\n\n<li><strong>Excelente demulsibilidade (separa\u00e7\u00e3o \u00f3leo-\u00e1gua)<\/strong><\/li>\n\n\n\n<li><strong>Propriedades anti-ferrugem e anti-corros\u00e3o<\/strong><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">Porque \u00e9 que a estabilidade da oxida\u00e7\u00e3o \u00e9 importante<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>Durante o funcionamento, o \u00f3leo do compressor entra frequentemente em contacto com <strong>ar a alta temperatura e alta press\u00e3o<\/strong> e superf\u00edcies met\u00e1licas, acelerando <strong>reac\u00e7\u00f5es de oxida\u00e7\u00e3o<\/strong>. Isto leva \u00e0 forma\u00e7\u00e3o de <strong>\u00e1cidos org\u00e2nicos, vernizes, lamas e res\u00edduos de carbono<\/strong>A deteriora\u00e7\u00e3o do funcionamento do motor pode ser causada por uma diminui\u00e7\u00e3o da efici\u00eancia e um aumento do desgaste. Em casos graves, pode mesmo provocar <strong>explos\u00f5es de cilindros<\/strong>.<\/p>\n\n\n\n<p>Para evitar tais riscos, o \u00f3leo do compressor deve manter uma forte <strong>resist\u00eancia \u00e0 oxida\u00e7\u00e3o<\/strong>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">M\u00e9todos de ensaio comuns:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>GB\/T12709<\/strong>: Carater\u00edsticas de envelhecimento do lubrificante<\/li>\n\n\n\n<li><strong>GB\/T12581<\/strong>: Estabilidade da oxida\u00e7\u00e3o do \u00f3leo de turbina<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">Riscos e preven\u00e7\u00e3o de explos\u00f5es<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>Os dois principais factores que contribuem para as explos\u00f5es de \u00f3leo de compressor s\u00e3o<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Lamas de \u00f3leo e dep\u00f3sitos de carbono<\/strong> de fraca estabilidade antioxidante e t\u00e9rmica<\/li>\n\n\n\n<li><strong>Decomposi\u00e7\u00e3o do \u00f3leo<\/strong> em hidrocarbonetos leves e poeiras de carbono<\/li>\n<\/ol>\n\n\n\n<p><strong>Medidas de preven\u00e7\u00e3o:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Utiliza\u00e7\u00e3o <strong>\u00f3leos de base profundamente refinados e com poucos res\u00edduos<\/strong><\/li>\n\n\n\n<li>Evitar \u00f3leos que contenham <strong>aditivos formadores de cinzas<\/strong><\/li>\n\n\n\n<li>Escolha \u00f3leos com <strong>res\u00edduo de carbono de baixo Conradson<\/strong><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">Gases comprimidos recomendados<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>Os \u00f3leos para compressores Baldor s\u00e3o adequados para utiliza\u00e7\u00e3o com:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ar<\/strong><\/li>\n\n\n\n<li><strong>Gases de hidrocarbonetos<\/strong>: g\u00e1s natural, GPL, etileno, etc.<\/li>\n\n\n\n<li><strong>Gases inertes<\/strong>: hidrog\u00e9nio, azoto, CO\u2082, CO, h\u00e9lio<\/li>\n\n\n\n<li><strong>Gases reactivos<\/strong>: cloro, cloreto de hidrog\u00e9nio, di\u00f3xido de enxofre<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">Indicadores de mudan\u00e7a de \u00f3leo<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>Para manter o desempenho ideal, o \u00f3leo do compressor deve ser amostrado e analisado regularmente. Substituir o \u00f3leo se ocorrer alguma das seguintes situa\u00e7\u00f5es:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A cor escurece para al\u00e9m de quatro tons<\/strong><\/li>\n\n\n\n<li><strong>Valor de acidez superior a 0,5 mgKOH\/g<\/strong><\/li>\n\n\n\n<li><strong>Varia\u00e7\u00f5es de viscosidade superiores a \u00b115%<\/strong><\/li>\n\n\n\n<li><strong>Mat\u00e9rias insol\u00faveis em pentano superiores a 0,5%<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Consultar a norma <strong>SH\/T0538-93<\/strong> para indicadores de mudan\u00e7a em compressores de ar rotativos de carga ligeira.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/baldor-air.com\/pt\/como-e-que-uma-nova-fabrica-deve-escolher-um-compressor-de-ar\/\" data-type=\"post\" data-id=\"1381\">Como escolher o \u00f3leo certo para compressores de ar?<\/a><\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>A sele\u00e7\u00e3o do \u00f3leo depende do tipo de compressor, da carga e das condi\u00e7\u00f5es ambientais:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Aplica\u00e7\u00e3o<\/th><th>Tipo de \u00f3leo recomendado<\/th><\/tr><\/thead><tbody><tr><td>Compressor de pist\u00e3o arrefecido a ar &lt;20kW<\/td><td>L-DAA \/ L-DAB \/ L-DAC (32, 46, 100)<\/td><\/tr><tr><td>Compressor de pist\u00e3o arrefecido a \u00e1gua<\/td><td>L-DAA (68, 100)<\/td><\/tr><tr><td>Compressor rotativo com gotejamento de \u00f3leo<\/td><td>L-DAB \/ L-DAC (100, 150, 220)<\/td><\/tr><tr><td>Compressor de parafuso rotativo com inje\u00e7\u00e3o de \u00f3leo<\/td><td>L-DAG \/ L-DAH \/ L-DAJ (32)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">Normas nacionais e internacionais<\/h3>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\">China:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>GB12691-90<\/strong>: \u00d3leos para compressores alternativos (L-DAA, L-DAB)<\/li>\n\n\n\n<li><strong>GB5904-86<\/strong>: \u00d3leos rotativos (L-DAG)<\/li>\n\n\n\n<li><strong>Normas empresariais<\/strong>: Para \u00f3leos L-DAH<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Internacional:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>DIN51506<\/strong> (Alemanha)<\/li>\n\n\n\n<li><strong>ISO\/DP6521.3<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Adicionalmente, <strong>ISO\/DP6743\/3<\/strong> classifica os \u00f3leos para compressores de g\u00e1s em cinco tipos, tais como DGA (de base mineral) e KGC (fluidos sint\u00e9ticos), para v\u00e1rios gases industriais.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<h3 class=\"wp-block-heading\">Conclus\u00e3o<\/h3>\n<\/div>\n<\/div>\n\n\n\n<p>Selecionar o \u00f3leo de compressor de ar correto \u00e9 essencial para maximizar a vida \u00fatil do compressor, a efici\u00eancia energ\u00e9tica e a seguran\u00e7a. Os \u00f3leos com <strong>excelente estabilidade \u00e0 oxida\u00e7\u00e3o<\/strong> ajudam a evitar dep\u00f3sitos nocivos, sobreaquecimento e falhas catastr\u00f3ficas. Em<a href=\"https:\/\/baldor-air.com\/pt\"> Baldor<\/a>oferecemos uma vasta gama de <a class=\"\" href=\"https:\/\/baldor-air.com\/pt\">\u00f3leos e solu\u00e7\u00f5es para compressores<\/a> que cumprem normas internacionais rigorosas e proporcionam uma prote\u00e7\u00e3o superior em todas as condi\u00e7\u00f5es.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Compreender os tipos de \u00f3leo para compressores de ar, propriedades e normas de manuten\u00e7\u00e3o O \u00f3leo para compressores de ar desempenha um papel fundamental para garantir a fiabilidade, o desempenho e a seguran\u00e7a dos compressores de ar em v\u00e1rios ambientes industriais. A sua fun\u00e7\u00e3o vai muito al\u00e9m da simples lubrifica\u00e7\u00e3o - \u00e9 essencial para o arrefecimento, veda\u00e7\u00e3o, prote\u00e7\u00e3o antidesgaste e preven\u00e7\u00e3o da ferrugem. Uma das carater\u00edsticas mais importantes de um compressor de alta qualidade [...]<\/p>","protected":false},"author":1,"featured_media":1201,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[32],"tags":[95,186,34,53,187],"class_list":{"0":"post-2675","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-blog","8":"tag-air-compressor","9":"tag-air-compressor-oil","10":"tag-baldor","11":"tag-baldor-air-compressors","12":"tag-oil-lubricated-screw-air-compressor"},"_links":{"self":[{"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/posts\/2675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/comments?post=2675"}],"version-history":[{"count":2,"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/posts\/2675\/revisions"}],"predecessor-version":[{"id":2893,"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/posts\/2675\/revisions\/2893"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/media\/1201"}],"wp:attachment":[{"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/media?parent=2675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/categories?post=2675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baldor-air.com\/pt\/wp-json\/wp\/v2\/tags?post=2675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}