{"id":4347,"date":"2021-12-29T07:11:13","date_gmt":"2021-12-29T07:11:13","guid":{"rendered":"https:\/\/zecovalve.com\/analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point.html"},"modified":"2022-09-07T02:12:33","modified_gmt":"2022-09-07T02:12:33","slug":"analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point.html","title":{"rendered":"Fundi\u00e7\u00e3o de V\u00e1lvulas \u2013 Fabricantes de V\u00e1lvulas de Fundi\u00e7\u00e3o"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"205\" height=\"300\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/cast.jpg\" alt=\"\" class=\"wp-image-20730\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-valve-casting\">Fundi\u00e7\u00e3o de v\u00e1lvula<\/h2>\n\n\n\n<p>A v\u00e1lvula \u00e9 usada para alterar a se\u00e7\u00e3o de passagem e a dire\u00e7\u00e3o do fluxo do meio. Possui fun\u00e7\u00f5es de desvio, corte, regula\u00e7\u00e3o, estrangulamento, verifica\u00e7\u00e3o, divis\u00e3o ou al\u00edvio de transbordamento. As pe\u00e7as fundidas de v\u00e1lvulas s\u00e3o componentes de controle em sistemas de distribui\u00e7\u00e3o de fluidos em tubula\u00e7\u00f5es. Eles v\u00eam em uma ampla variedade de tamanhos e tamanhos.<\/p>\n\n\n\n<p>As pe\u00e7as fundidas de v\u00e1lvulas s\u00e3o amplamente utilizadas em produtos qu\u00edmicos, petroqu\u00edmicos, petr\u00f3leo, papel, minera\u00e7\u00e3o, energia el\u00e9trica, g\u00e1s liquefeito de petr\u00f3leo, alimentos, produtos farmac\u00eauticos, abastecimento de \u00e1gua e drenagem, equipamentos municipais, mec\u00e2nicos, ind\u00fastria eletr\u00f4nica, constru\u00e7\u00e3o urbana e outros campos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tipos de fundi\u00e7\u00e3o de v\u00e1lvula<\/h2>\n\n\n\n<p><strong>Fundi\u00e7\u00e3o em cera perdida<\/strong>: \u00c9 capaz de fabricar componentes de v\u00e1lvulas de a\u00e7o fundido, como a\u00e7o carbono, a\u00e7o inoxid\u00e1vel e outras ligas de a\u00e7o fundido. A fundi\u00e7\u00e3o por cera perdida \u00e9 um m\u00e9todo de fundi\u00e7\u00e3o de precis\u00e3o para componentes de v\u00e1lvulas, para que possamos obter boas dimens\u00f5es e toler\u00e2ncias, superf\u00edcie mais lisa. As pe\u00e7as fundidas de v\u00e1lvulas de a\u00e7o inoxid\u00e1vel s\u00e3o amplamente utilizadas no processo de fundi\u00e7\u00e3o por sol de s\u00edlica, que \u00e9 outro m\u00e9todo de cera perdida. Podemos usar este processo de fundi\u00e7\u00e3o para v\u00e1lvulas borboleta, v\u00e1lvulas esfera, etc.<\/p>\n\n\n\n<p><strong>Fundi\u00e7\u00e3o de espuma perdida<\/strong>: Este m\u00e9todo de fundi\u00e7\u00e3o \u00e9 mais adequado para fazer pe\u00e7as de v\u00e1lvula de ferro fundido precison, que tamb\u00e9m podem obter bom acabamento superficial e tamanhos, tais pe\u00e7as fundidas de v\u00e1lvula de formato l\u00edquido ou quase l\u00edquido n\u00e3o precisar\u00e3o de usinagem ou apenas de pouca margem de usinagem.<\/p>\n\n\n\n<p><strong>Fundi\u00e7\u00e3o em Areia<\/strong>: Tamb\u00e9m um processo de fundi\u00e7\u00e3o para pe\u00e7as fundidas de v\u00e1lvulas. A fundi\u00e7\u00e3o em areia \u00e9 adequada para pe\u00e7as fundidas de v\u00e1lvulas de a\u00e7o e ferro. Em compara\u00e7\u00e3o com pe\u00e7as fundidas com espuma perdida e cera perdida, \u00e9 mais adequado fazer componentes de v\u00e1lvula maiores, portanto, normalmente, precisaremos deixar mais margem de usinagem para opera\u00e7\u00f5es de usinagem adicionais. O peso m\u00e1ximo que podemos lan\u00e7ar \u00e9 de cerca de 2 toneladas por pe\u00e7a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Processo de fundi\u00e7\u00e3o em areia de v\u00e1lvula<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Processo de fundi\u00e7\u00e3o de v\u00e1lvula<\/h3>\n\n\n\n<p>Cada um dos nossos processos de fundi\u00e7\u00e3o de corpo de v\u00e1lvula \u00e9 executado em estrita conformidade com o Procedimento Operacional Padr\u00e3o (SOP). O principal processo de fundi\u00e7\u00e3o do corpo da v\u00e1lvula na fabrica\u00e7\u00e3o de fundi\u00e7\u00e3o do corpo da v\u00e1lvula \u00e9 o seguinte: simula\u00e7\u00e3o de vazamento, desenvolvimento de molde, inspe\u00e7\u00e3o de mat\u00e9ria-prima, padr\u00e3o de cera, prepara\u00e7\u00e3o de casca, vazamento de metal, limpeza e tratamento t\u00e9rmico, inspe\u00e7\u00e3o, embalagem em armaz\u00e9m e envio.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Desenvolvimento de Moldes<ul><li>O departamento t\u00e9cnico desenvolve o molde e o departamento de qualidade utiliza as tr\u00eas coordenadas para realizar a inspe\u00e7\u00e3o dimensional.<\/li><\/ul><\/li><li>Padr\u00e3o de cera<ul><li>A oficina utiliza m\u00e1quinas de enceramento autom\u00e1ticas para definir a press\u00e3o de enceramento, o tempo de espera, etc. e para produzir padr\u00f5es de alta qualidade.<\/li><\/ul><\/li><li>Prepara\u00e7\u00e3o de casca<ul><li>A oficina possui 4 linhas de produ\u00e7\u00e3o autom\u00e1ticas, capazes de produzir 1.800 conjuntos de conchas. Usamos higroterm\u00f3grafo, aer\u00f4metro e PH para monitorar umidade, temperatura e concentra\u00e7\u00e3o de cloreto de alum\u00ednio no licor.<\/li><\/ul><\/li><li>Derramamento de metal<ul><li>4 conjuntos de fornos de 500KG est\u00e3o em produ\u00e7\u00e3o e 3 conjuntos de fornos sobressalentes de 500KG est\u00e3o prontos quando a capacidade aumentar. Os operadores realizam testes rigorosos para atender aos requisitos de materiais.<\/li><\/ul><\/li><li>Limpeza e tratamento t\u00e9rmico<ul><li>A oficina est\u00e1 totalmente equipada com 8 fornos de tratamento t\u00e9rmico, 3 fornos de t\u00eampera, 1 m\u00e1quina de jateamento central e 11 m\u00e1quinas de jateamento de grande porte.<\/li><\/ul><\/li><li>Inspe\u00e7\u00e3o<ul><li>Todas as dimens\u00f5es da pe\u00e7a bruta s\u00e3o verificadas usando uma CMM. Temos m\u00e1quina de dureza rockwell, instrumento de equil\u00edbrio din\u00e2mico, medidor de circularidade, etc. O departamento de qualidade da empresa certificou funcion\u00e1rios para fazer testes UT, PT, MT.<\/li><\/ul><\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Processo de fundi\u00e7\u00e3o em areia de v\u00e1lvula<\/h3>\n\n\n\n<p>Cada um dos nossos processos de fundi\u00e7\u00e3o de corpo de v\u00e1lvula \u00e9 executado em estrita conformidade com o Procedimento Operacional Padr\u00e3o (SOP). O principal processo de fundi\u00e7\u00e3o do corpo da v\u00e1lvula \u00e9 o seguinte: simula\u00e7\u00e3o de vazamento, desenvolvimento de molde, inspe\u00e7\u00e3o de mat\u00e9ria-prima, modelagem (fabrica\u00e7\u00e3o de n\u00facleo), fus\u00e3o, vazamento de metal, limpeza e tratamento t\u00e9rmico, inspe\u00e7\u00e3o, embalagem em armaz\u00e9m e envio<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Desenvolvimento de Moldes<ul><li>Projetar e produzir moldes de acordo com os requisitos dos desenhos. Geralmente, moldes de madeira podem ser usados para produ\u00e7\u00e3o de pe\u00e7a \u00fanica, moldes de pl\u00e1stico e moldes de metal s\u00e3o feitos para produ\u00e7\u00e3o em massa e modelos podem ser feitos para fundi\u00e7\u00f5es em massa. Nosso molde \u00e9 feito principalmente de alum\u00ednio.<\/li><\/ul><\/li><li>Modelagem (Fabrica\u00e7\u00e3o de N\u00facleo)<ul><li>Inclui modelagem (formar a cavidade da pe\u00e7a fundida com areia de moldagem), confec\u00e7\u00e3o de macho (formar o formato interno da pe\u00e7a fundida) e correspond\u00eancia de molde (colocar o macho na cavidade e fechar os frascos superior e inferior). A modelagem \u00e9 um processo chave no processo de fundi\u00e7\u00e3o do corpo da v\u00e1lvula.<\/li><\/ul><\/li><li>Derretendo<ul><li>De acordo com a composi\u00e7\u00e3o met\u00e1lica necess\u00e1ria, a composi\u00e7\u00e3o qu\u00edmica \u00e9 combinada e o forno de fus\u00e3o apropriado \u00e9 selecionado para derreter o material da liga para formar um l\u00edquido met\u00e1lico l\u00edquido qualificado (incluindo composi\u00e7\u00e3o qualificada e temperatura qualificada)<\/li><\/ul><\/li><li>Derramamento de metal<ul><li>Despeje metal fundido qualificado na caixa de areia equipada com o molde. A etapa de vazamento possui alta exig\u00eancia de seguran\u00e7a, e contamos com rigoroso controle de processo para proteger a seguran\u00e7a de nossos colaboradores.<\/li><\/ul><\/li><li>Limpeza e tratamento t\u00e9rmico<ul><li>Depois que o metal fundido \u00e9 derramado e solidificado, a areia de moldagem \u00e9 removida e a comporta e outros acess\u00f3rios s\u00e3o retirados para formar a pe\u00e7a fundida necess\u00e1ria.<\/li><\/ul><\/li><li>Inspe\u00e7\u00e3o<ul><li>Todas as dimens\u00f5es da pe\u00e7a bruta s\u00e3o verificadas usando uma CMM. Temos m\u00e1quina de dureza rockwell, instrumento de equil\u00edbrio din\u00e2mico, medidor de circularidade, etc. O departamento de qualidade da empresa certificou funcion\u00e1rios para fazer testes UT, PT, MT.<\/li><\/ul><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Os materiais das pe\u00e7as fundidas da v\u00e1lvula s\u00e3o os seguintes:<\/h2>\n\n\n\n<p><strong>A\u00e7o carbono<\/strong>\u00a0(principalmente para pe\u00e7as fundidas de v\u00e1lvulas de alta press\u00e3o): WCA, WCB, ZG25, ZG200-350, ASTM A216 WCA\/WCB\/WCC, GS25.<\/p>\n\n\n\n<p><strong>A\u00e7o inoxid\u00e1vel<\/strong>: SS304, SS316, PH17-4, ASTM A351 CF8\/CF8M\/CF3\/CF3M, ZG0Cr18Ni9, zg0Cr18Ni12Mo2, ZG00Cr18Ni10.<\/p>\n\n\n\n<p><strong>Ferro cinzento<\/strong>: HT200, HT250, HT300, HT350, GG15, GG20, GG30, FC200, FC250, FC300, ASTM A48 CLASSE NO.20, NO.25, NO.30, NO.35.<\/p>\n\n\n\n<p><strong>Ferro D\u00factil:<\/strong>\u00a0QT400-18, QT500-7, QT600-3, GGG40, GGG50, GGG60, FCD450-70, FCD400-15, FCD500-7, FCD600-3, ASTM A536 (60-40-18,65-45-12, 80 -55-06).<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><br>N\u00c3O.<\/td><td>Materiais<\/td><td>Press\u00e3o<\/td><td>Temperatura<\/td><td>M\u00e9dio<\/td><td>Notas<\/td><\/tr><tr><td>1<\/td><td>ferro fundido cinzento<\/td><td>\u22641,0 MPa<\/td><td>-10 \u00b0C ~ 200 \u00b0C<\/td><td>\u00e1gua, vapor, ar, g\u00e1s e \u00f3leo<\/td><td>HT200,<br>HT250,<br>HT300,<br>HT350<\/td><\/tr><tr><td>2<\/td><td>Ferro fundido forj\u00e1vel<\/td><td>\u2264 2,5 MPa<\/td><td>-30 ~ 300\u00b0C<\/td><td>\u00e1gua, vapor, ar e \u00f3leo<\/td><td>KTH300-06,<br>KTH330-08,<br>KTH350-10<\/td><\/tr><tr><td>3<\/td><td>Ferro d\u00factil<\/td><td>\u22644,0 MPa<\/td><td>-30~350\u00b0C<\/td><td>\u00e1gua, vapor, ar e \u00f3leo<\/td><td>QT400-15,<br>QT450-10,<br>QT500-7<\/td><\/tr><tr><td>4<\/td><td>Ferro d\u00factil com alto teor de sil\u00edcio e resistente a \u00e1cidos<\/td><td>\u2264 0,25MPa<\/td><td>abaixo de 120\u00b0C<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><td>5<\/td><td>A\u00e7o carbono<\/td><td>\u226432,0 MPa<\/td><td>-30~425\u00b0C<\/td><td>\u00e1gua, vapor, ar, hidrog\u00eanio, am\u00f4nia, nitrog\u00eanio e produtos petrol\u00edferos<\/td><td>WC1, WCB, ZG25 e a\u00e7o de alta qualidade 20, 25, 30 e a\u00e7o estrutural de baixa liga 16Mn.<\/td><\/tr><tr><td>6<\/td><td>Liga de cobre<\/td><td>\u2264 2,5 MPa<\/td><td>-40 ~ 250\u00b0C<\/td><td>\u00e1gua, \u00e1gua do mar, oxig\u00eanio, ar, \u00f3leo e outros meios<\/td><td>ZGnSn10Zn2 (bronze estanho), H62, Hpb59-1 (lat\u00e3o), QAZ19-2, QA19-4 (bronze alum\u00ednio).<\/td><\/tr><tr><td>7<\/td><td>Cobre de alta temperatura<\/td><td>\u226417,0MPA<\/td><td>\u2264570\u00b0C<\/td><td>vapor e produtos petrol\u00edferos<\/td><td>ZGCr5Mo, 1Cr5M0, ZG20CrMoV, ZG15Gr1Mo1V, 12CrMoV, WC6, WC9 e outras classes.<\/td><\/tr><tr><td>8<\/td><td>A\u00e7o de baixa temperatura<\/td><td>\u2264 6,4Mpa<\/td><td>\u2265 -196\u00b0C<\/td><td>etileno, propileno, g\u00e1s natural l\u00edquido, nitrog\u00eanio l\u00edquido e outros meios<\/td><td>ZG1Cr18Ni9<br>0Cr18Ni9<br>1Cr18Ni9Ti<br>ZG0Cr18Ni9<\/td><\/tr><tr><td>9<\/td><td>A\u00e7o inoxid\u00e1vel resistente a \u00e1cidos<\/td><td>\u2264 6,4Mpa<\/td><td>\u2264200\u00b0C<\/td><td>\u00c1cido nitrito, \u00e1cido ac\u00e9tico e outros meios<\/td><td>ZG0Cr18Ni9Ti<br>ZG0Cr18Ni10<br>ZG0Cr18Ni12Mo2Ti<br>ZG1Cr18Ni12Mo2Ti<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Nos \u00faltimos anos, os fabricantes de v\u00e1lvulas de fundi\u00e7\u00e3o na China perceberam o forte controle autom\u00e1tico aut\u00f4nomo da v\u00e1lvula, ent\u00e3o a qualidade dos fabricantes de v\u00e1lvulas para escolher a v\u00e1lvula para prestar aten\u00e7\u00e3o em que ponto?<\/p>\n\n\n\n<p>I. par\u00e2metros e especifica\u00e7\u00f5es<\/p>\n\n\n\n<p>Os chamados par\u00e2metros das especifica\u00e7\u00f5es da v\u00e1lvula tamb\u00e9m podem ser abreviados como os tipos de produtos, o princ\u00edpio da v\u00e1lvula consistente, mas os detalhes s\u00e3o diferentes, por isso s\u00e3o aplic\u00e1veis a diferentes locais, como o fabricante de v\u00e1lvulas de amortecedores de inc\u00eandio no O mainstream de 3 c cont\u00e9m amortecedor de fuma\u00e7a e amortecedor de fuma\u00e7a autom\u00e1tico e assim por diante, todos os tipos de tipos, os principais par\u00e2metros de controle e especifica\u00e7\u00f5es s\u00e3o a base para a escolha do amortecedor de inc\u00eandio.<\/p>\n\n\n\n<p>Eu. Local aplic\u00e1vel e temperatura operacional<\/p>\n\n\n\n<p>Custo-beneficio <a href=\"https:\/\/zecovalve.com\/pt\/produto\/resilient-seated-gate-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><mark style=\"background-color:var(--base)\" class=\"has-inline-color has-contrast-2-color\">Fabricante de v\u00e1lvula gaveta de ferro fundido<\/mark><\/strong> <\/a>a identifica\u00e7\u00e3o do produto ser\u00e1 claramente marcada na temperatura de opera\u00e7\u00e3o do produto, determinar\u00e1 diretamente sua aplica\u00e7\u00e3o, alguma v\u00e1lvula barata tem certa versatilidade e generalidade, mas na medida do poss\u00edvel opte por instal\u00e1-la na \u00e1rea principal, como temperatura de a\u00e7\u00e3o de pr\u00e9dios p\u00fablicos de inc\u00eandio Os amortecedores no sistema de exaust\u00e3o s\u00e3o relativamente altos, e a temperatura de a\u00e7\u00e3o do sistema de ar condicionado residencial ou comercial comum dos amortecedores contra inc\u00eandio no 3 c \u00e9 relativamente baixa.<\/p>\n\n\n\n<p>III. Requisitos funcionais<\/p>\n\n\n\n<p>Para v\u00e1lvulas de f\u00e1brica de v\u00e1lvulas no mesmo produto em locais diferentes t\u00eam requisitos diferentes, ent\u00e3o voc\u00ea escolhe 3 c antes de cima ou abaixo da linha de amortecedores corta-fogo na escolha e compra depende de sua fun\u00e7\u00e3o b\u00e1sica e do escopo aplic\u00e1vel, como amortecedor corta-fogo , por exemplo, ainda depende se voc\u00ea precisa de uma v\u00e1lvula de inc\u00eandio 3 c que tenha a fun\u00e7\u00e3o de abertura e fechamento autom\u00e1tico, se pode atender \u00e0s necessidades de normalmente aberta, se houver um controle remoto e sa\u00edda de sinal e outras fun\u00e7\u00f5es.<\/p>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Etiquetas relacionadas :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/\">V\u00e1lvula ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/categoria-do-produto\/gate-valve\/\">Fabricante de v\u00e1lvula gaveta - v\u00e1rios tipos de v\u00e1lvula gaveta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/produto\/manual-gate-valve\/\">V\u00e1lvula de gaveta de acionamento manual Fabricante<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/the-function-of-globe-valve-in-pipeline-system.html\/\">O que s\u00e3o v\u00e1lvulas globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diferen\u00e7a entre a v\u00e1lvula de gaveta e a v\u00e1lvula de borboleta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/history-of-automatic-control-valve-zeco-valve-industrial-valve-manufacturer.html\/\">O que s\u00e3o v\u00e1lvulas de controlo autom\u00e1ticas?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/tag\/shanghai-pressure-reducing-valve-factory\/\">F\u00e1brica de v\u00e1lvulas redutoras de press\u00e3o de Xangai<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">O que \u00e9 uma v\u00e1lvula de gaveta?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/the-difference-between-globe-valve-and-ball-valve.html\/\">V\u00e1lvula de Globo vs V\u00e1lvula de Esfera<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/produto\/12-inch-gate-valve\/\">Fornecedor de v\u00e1lvula gaveta de 12 polegadas<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/thermoplastic-materials-as-valve-seat.html\/\">Materiais termopl\u00e1sticos como sede de v\u00e1lvula esf\u00e9rica e sede de v\u00e1lvula borboleta<\/a>\n\n<\/div>\n\n\n\n<p>Dez artigos antes e depois<\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/causes-of-failure-and-damage-of-stainless-steel-globe-valves.html\/\">Causas de falhas e danos em v\u00e1lvulas globo de a\u00e7o inoxid\u00e1vel<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/china-casting-valve-manufacturers.html\/\">Fabricantes de v\u00e1lvulas de fundi\u00e7\u00e3o na China<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/cast-iron-check-valve-supplier.html\/\">Fornecedor de v\u00e1lvula de reten\u00e7\u00e3o de ferro fundido<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/how-does-the-cryogenic-cast-iron-gate-valve-work%ef%bc%9f.html\/\">Como funciona a v\u00e1lvula criog\u00eanica de ferro fundido\uff1f<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/pressure-relief-valve-can-not-be-installed-in-reverse.html\/\">A v\u00e1lvula de al\u00edvio de press\u00e3o n\u00e3o pode ser instalada ao contr\u00e1rio<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/cast-steel-ball-valve-cast-steel-ball-valves-supplier.html\/\">V\u00e1lvula de esfera de a\u00e7o fundido, fornecedor de v\u00e1lvulas de esfera de a\u00e7o fundido<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/precautions-for-the-use-of-cast-iron-valves.html\/\">Precau\u00e7\u00f5es para o uso de v\u00e1lvulas de ferro fundido<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/china-industrial-valves-brand-din-angle-type-globe-valve-supplier.html\/\">Marca de v\u00e1lvulas industriais da China, fornecedor de v\u00e1lvula globo tipo \u00e2ngulo DIN<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/china-valve-manufacturers-teach-you-how-to-maintain-the-valve.html\/\">Fabricantes de v\u00e1lvulas na China ensinam como fazer a manuten\u00e7\u00e3o da v\u00e1lvula<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/china-st-gate-valve-supplier-manufacturer.html\/\">Fornecedor e fabricante de v\u00e1lvula de gaveta st na China<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Fundi\u00e7\u00e3o da V\u00e1lvula A v\u00e1lvula \u00e9 usada para alterar a se\u00e7\u00e3o de passagem e a dire\u00e7\u00e3o do fluxo do meio. Tem as fun\u00e7\u00f5es\u2026 <a title=\"Fundi\u00e7\u00e3o de V\u00e1lvulas \u2013 Fabricantes de V\u00e1lvulas de Fundi\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point.html\" aria-label=\"Mais em Fundi\u00e7\u00e3o de V\u00e1lvulas \u2013 Fabricantes de V\u00e1lvulas de Fundi\u00e7\u00e3o\">Ler mais<\/a><\/p>","protected":false},"author":2,"featured_media":20730,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[3273,3268,3265,3264,3272,3274,3275],"class_list":["post-4347","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-casting-valve","tag-difference-between-cast-and-forged","tag-difference-between-forged-and-cast","tag-forged-vs-cast-irons","tag-valve-casting","tag-valve-casting-factories","tag-valve-casting-manufacturers","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/cast.jpg",205,300,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/pt\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":3273,"name":"casting valve","slug":"casting-valve","term_group":0,"term_taxonomy_id":3273,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3268,"name":"Difference Between Cast and Forged","slug":"difference-between-cast-and-forged","term_group":0,"term_taxonomy_id":3268,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_7d0b55-1a\"} \/-->\r\n\r\n<!-- wp:heading -->\r\nSTEEL FORGING VS CASTING\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe casting process is preferred for:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n\r\n \tparts and components that would be too complex or expensive to manufacture by steel forging (example: large valve bodies);\r\n \tparts that have internal cavities;\r\n \tlarge sized parts (there are virtually no size limits in terms of the weight of the parts that can be produced with the casting process);\r\n \tparts in special alloys (some specific alloys are more difficult to forge than cast, for example, those with a high content of Nickel and Moly, which have considerable resistance to mechanical forces);\r\n \tparts requiring mass production and small lots.\r\n\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe forging process is preferred for:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n\r\n \tparts requiring extremely high strength, toughness, and resistance (indeed, during the forging process the steel grain structure gets modified to conform to the shape of the final product \u2013 with high uniformity of composition and metallurgical recrystallization);\r\n \tparts that have to withstand stronger impacts and mechanical forces;\r\n \tparts where porosity, the risk of a gas void, pockets, and the possible formation of cavities (even micro-granular) are not acceptable;\r\n \tproduction of mechanically strong parts without using expensive alloys;\r\n \tparts that require high wear resistance;\r\n \tparts subject to high loads and stress;\r\n \thigh-end applications when the integrity and the quality of the part is the main objective in the production process, rather than time and cost.\r\n\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a href=\"https:\/\/zecovalve.com\/contact\"><strong>GET DIFFERENCE BETWEEN CAST AND FORGED IRONS INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\nAdvantages and Disadvantages of Forged Valves\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThere are many reasons why you may want a forged ball valve for your application instead of a cast valve. Forged valves do tend to be better for high-temperature and high-pressure applications. These types of valves are less prone to thermal fatigue because the walls are thinner compared to cast alternatives. Also, forged options have a higher mass, making them mechanically stronger.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nHowever, there are a few reasons why a forged ball valve may not be best for your application. First, the forging process does create limitations for valve size and shape. Forging generally works better for smaller valves and components. In addition, not every metal is suitable for forging, which limits your options for valve material.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\nAdvantages and Disadvantages of Cast Valves\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCast valves are a great option where you need quick turnaround and low-cost valves, as they require less labor to produce. Also, the casting process allows for more complex shapes and valve manufacturing. You also have greater flexibility in material choice, as many types of metals are suitable for casting.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWhile cast valves are quite strong and durable when you choose a high-quality manufacturer, there are still some restrictions. For example, the solidification process can create small impurities in the metal. They also are less resistant to high temperatures and pressures compared to a forged ball valve.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":7,"filter":"raw"},{"term_id":3265,"name":"Difference Between Forged and Cast","slug":"difference-between-forged-and-cast","term_group":0,"term_taxonomy_id":3265,"taxonomy":"post_tag","description":"<!-- wp:paragraph -->\r\n\r\nCasting valves are valves made by casting. Generally, the pressure grades of cast valves are relatively low (such as PN16, PN25, and PN40, but there are also high-pressure ones, which can reach 1500Lb, and 2500Lb), and most of their calibers are above DN50. Forged valves are forged and are generally used in high-grade pipelines with relatively small diameters, generally below DN50.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_3af8cc-3b\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a href=\"mailto:commercial@zecovalve.com\"><strong>GET DIFFERENCE BETWEEN CAST AND FORGED IRONS INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\nWhy use Castings?\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWe use castings for a wide range of wear parts and components that are too large, complicated, intricate, or otherwise unsuitable for the forging process. We can forge parts up to 50kgs but the sheer energy required to forge larger items makes casting a much more viable alternative.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\nAdvantages of Castings\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n\r\n \tNo real upper size limit in casting weight\r\n \tLarge range of alloy choices\r\n \tAs forgings remain solid, custom alloys are far more difficult to get into production whereas, with casting, alloys including Chrome, Nickel, and Moly can be added at the molten stage.\r\n \tTooling is often less expensive than forge dies\r\n \tSmaller production \u201cruns\u201d required\r\n \tComplicated\/complex parts are no problem\r\n\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\nWhy use Forgings?\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nForging offers uniformity of composition and structure. Forging results in metallurgical recrystallization and grain refinement as a result of the thermal cycle and deformation process. This strengthens the resulting steel product, particularly in terms of impact and shear strength.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nForged steel is generally stronger and more reliable than castings and plate steel due to the fact that the grain flows of the steel\u00a0are altered, conforming to the shape of the part.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\nAdvantages of Forgings\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n\r\n \tGenerally tougher than alternatives\r\n \tWill handle impact better than castings\r\n \tThe nature of forging excludes the occurrence of porosity, shrinkage, cavities, and cold pour issues.\r\n \tThe tight grain structure of forgings makes them mechanically strong. There is less need for expensive alloys to attain high-strength components.\r\n \tThe tight grain structure offers great wear resistance without the need to make products \u201csuperhard\u201d We have found that on a blank HRC 38-42 forged grinder insert wear\/wash is about the same as a high alloy HRC 46-50 cast grinder insert. The difference being an HRC 46-50 casting does not have the ductility to handle high-impact grinding.\r\n\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\nDifference Between Cast and Forged Irons\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCasting valve: the metal is smelted into a liquid that meets the requirements and poured into the specified valve mold. After cooling, solidification, and cleaning, a valve casting with a predetermined shape, size, and performance can be obtained. This is the entire casting valve crafting process. The connection between casting and valves came after the 20th century. Casting developed rapidly, creating ductile cast iron, malleable cast iron, ultra-low carbon stainless steel, aluminum copper, aluminum silicon, aluminum-magnesium alloy, and titanium which are still often used in valve products.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCast metal materials such as base, nickel base alloy, etc. The main advantage of casting is that the cost of the blank produced by casting is low, and it can show its economy more for parts with complex shapes, especially with complex inner cavities. At the same time, it has wider adaptability and better comprehensive mechanical properties. However, many materials and equipment are required for casting production, and dust, harmful gases, and noise will be generated to pollute the environment.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nForged valve is a processing method that uses forging machinery to apply pressure to metal valve blanks to produce plastic deformation to obtain forgings with certain mechanical properties, certain shapes, and sizes. Forging can be divided into open forging (free forging) and closed mode forging according to the forming method. According to the deformation temperature, forging can be divided into hot forging, warm forging, and cold forging.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nForging materials are mainly carbon steel and alloy steel with various compositions, followed by aluminum, magnesium, titanium, copper, etc., and their alloys. The original state of the material includes bar stock, ingot, metal powder, and liquid metal. The ratio of the cross-sectional area of the metal before deformation to the die cross-sectional area after deformation is called the forging ratio. Through forging, the as-cast looseness of metal and welding holes can be eliminated, and the mechanical properties of forgings are generally better than those of castings of the same material. For the important parts of machinery with high loads and severe working conditions, forgings are mostly used except for simpler shapes that can be rolled, profiles or welded parts. The correct selection of forging ratios has a great bearing on improving product quality and reducing costs.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":7,"filter":"raw"},{"term_id":3264,"name":"Forged vs Cast Irons","slug":"forged-vs-cast-irons","term_group":0,"term_taxonomy_id":3264,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_4feb50-82\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET FORGED VS CAST IRONS INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-forged\">Forged<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nForging refers to a process in which a material is usually heated, while maintaining a solid state, and then forced into the shape desired. Now to explain better, we must put on our material engineering hats.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nMetals have a crystalline structure. You can think of it like wood. Wood has grains and those grains are oriented in a certain pattern. Therefore, the strength of wood depends on how those grains are oriented. For example, it is much easier to splinter a log for firewood when the grains are oriented vertically. Metal is the same way. If you examine metal under a microscope it will have the same grains that you associate with wood.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWhen metal ingots are formed, special attention is made to creating a uniform and consistent crystalline structure. The grain sizes are similar and flow together. As previously stated, this maximizes the strength, consistency, and durability of the metal.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nNow when you forge something out of that metal ingot, you heat the ingot to make it malleable but not enough to break apart the crystalline grain structure. Think of a blacksmith. Blacksmiths heat metal till it's red hot and then form it on an anvil. This is forging. You do not see them melting the metal into a liquid. By keeping the metal, solid throughout the entire process, it ends up being a much stronger object. Therefore, swords, knives, etc. have historically been forged.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Cast Irons<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCasting an object requires building a mold and pouring liquid metal into it. This process is great, as it allows for easy manufacturing and the creation of complex parts with hollow chambers such as with an engine block of a vehicle. The manufacturer can use a meltable material such as wax inside a sand mold to form these complex shapes.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nUnfortunately, once the metal becomes a liquid the crystalline grain structure breaks down. As a newly formed cast object cools down and becomes solid again, the grain structure reforms but this time much more randomly and inconsistently. There also is the potential for trapped air to create weak points. The metal becomes more like particle board or cardboard in terms of structure than a normal piece of wood.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nNow does this make cast parts weak? Absolutely not. Over the past couple thousand years, humans have gotten pretty good at making cast metal parts. Ventilation holes, vacuum pressure, and other advances increase the quality of cast metal. As stated, cast metal is what vehicle engine blocks are made from those are expected to withstand extreme stress and strain.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Manufacturing Process Forged vs Cast Irons<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe first thing to know is that \"cast\" and \"forged\" are nothing more than terms describing the manufacturing process of iron or a set of irons.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe casting process: When a golf iron is cast, the metal used to make the iron is heated to its melting point, becoming a liquid. It is then poured into the molds of the iron heads. When it cools and hardens, voila, you have golf irons.\r\nThe forging process: When a golf iron is forged, the solid metal of the club head is literally pounded or compressed until it takes the desired shape. After that, a number of other drilling and machining steps take place to finish the manufacturing process.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Forging is stronger than casting.<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nOne of the main reasons we choose to provide forging services is that it provides a stronger end product for our partners. According to a study performed by the Industrial &amp; Manufacturing Engineering Department at the University of Toledo:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Forged parts had a 26% higher tensile strength than the same cast parts.<\/li>\r\n \t<li>Forged parts had a 37% higher fatigue strength resulting in a much longer lifespan than cast parts.<\/li>\r\n \t<li>Cast iron only had 66% of the yield strength of forged steel, a measurement that indicates the load amount metal can hold before deforming.<\/li>\r\n \t<li>The forged parts had a 58% reduction in the area when pulled to failure, compared to a 6% reduction for cast parts. That means forge parts allow for much greater deformation before failure than cast parts.<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->","parent":0,"count":6,"filter":"raw"},{"term_id":3272,"name":"valve casting","slug":"valve-casting","term_group":0,"term_taxonomy_id":3272,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3274,"name":"valve casting factories","slug":"valve-casting-factories","term_group":0,"term_taxonomy_id":3274,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3275,"name":"valve casting manufacturers","slug":"valve-casting-manufacturers","term_group":0,"term_taxonomy_id":3275,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":3273,"label":"casting valve"},{"value":3268,"label":"Difference Between Cast and Forged"},{"value":3265,"label":"Difference Between Forged and Cast"},{"value":3264,"label":"Forged vs Cast Irons"},{"value":3272,"label":"valve casting"},{"value":3274,"label":"valve casting factories"},{"value":3275,"label":"valve casting manufacturers"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Valve Casting - Casting Valve Manufacturers | ZECO Valve<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zecovalve.com\/pt\/analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Valve Casting - Casting Valve Manufacturers | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"Valve Casting The valve is used to change the passage section and the flow direction of the medium. 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