{"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\/fr\/analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point.html","title":{"rendered":"Moulage de vannes \u2013 Fabricants de vannes de coul\u00e9e"},"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\">Moulage de vannes<\/h2>\n\n\n\n<p>La vanne permet de modifier la section de passage et le sens d&#039;\u00e9coulement du fluide. Il a les fonctions de d\u00e9rivation, de coupure, de r\u00e9gulation, d&#039;\u00e9tranglement, de contr\u00f4le, de division ou de d\u00e9charge de d\u00e9bordement. Les pi\u00e8ces moul\u00e9es de vannes sont des composants de contr\u00f4le dans les syst\u00e8mes de distribution de fluides par pipeline. Ils viennent dans une grande vari\u00e9t\u00e9 de tailles et de tailles.<\/p>\n\n\n\n<p>Les pi\u00e8ces moul\u00e9es de vannes sont largement utilis\u00e9es dans les domaines chimique, p\u00e9trochimique, p\u00e9trolier, papier, minier, \u00e9lectrique, gaz de p\u00e9trole liqu\u00e9fi\u00e9, alimentaire, pharmaceutique, approvisionnement en eau et drainage, \u00e9quipement municipal et m\u00e9canique, industrie \u00e9lectronique, construction urbaine et autres domaines.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Types de moulage de vannes<\/h2>\n\n\n\n<p><strong>Moulage \u00e0 la cire perdue<\/strong>: Est capable de fabriquer des composants de vannes en acier moul\u00e9, comme l&#039;acier au carbone, l&#039;acier inoxydable et d&#039;autres alliages d&#039;acier moul\u00e9. Le moulage \u00e0 la cire perdue est une m\u00e9thode de moulage de pr\u00e9cision pour les composants de vannes, ce qui nous permet d&#039;obtenir de bonnes dimensions et tol\u00e9rances et une surface plus lisse. Les pi\u00e8ces moul\u00e9es de vannes en acier inoxydable sont largement utilis\u00e9es dans le processus de coul\u00e9e de sol siliceux, qui est une autre m\u00e9thode de cire perdue. Nous pouvons utiliser ce proc\u00e9d\u00e9 de moulage pour les vannes papillon, les vannes \u00e0 bille, etc.<\/p>\n\n\n\n<p><strong>Moulage de mousse perdue<\/strong>: Cette m\u00e9thode de coul\u00e9e est plus adapt\u00e9e \u00e0 la fabrication de pi\u00e8ces de vannes en fonte de pr\u00e9cision, qui peuvent \u00e9galement obtenir une bonne finition de surface et de bonnes tailles, de telles pi\u00e8ces moul\u00e9es de vannes de forme nette ou presque nette ne n\u00e9cessiteront aucun usinage ou juste peu de sur\u00e9paisseur d&#039;usinage.<\/p>\n\n\n\n<p><strong>Moulage en sable<\/strong>: \u00c9galement un processus de moulage pour les pi\u00e8ces moul\u00e9es de vannes. Le moulage au sable convient aux pi\u00e8ces moul\u00e9es de vannes en acier et en fer. Compar\u00e9 aux pi\u00e8ces moul\u00e9es en mousse perdue et en cire perdue, il est plus appropri\u00e9 de fabriquer des composants de vanne plus grands, donc normalement, nous devrons laisser plus de sur\u00e9paisseur d&#039;usinage pour des op\u00e9rations d&#039;usinage ult\u00e9rieures. Le poids maximum que nous pouvons lancer est d\u2019environ 2 tonnes par pi\u00e8ce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Processus de moulage au sable de vanne<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Processus de moulage de pr\u00e9cision de valve<\/h3>\n\n\n\n<p>Chacun de nos processus de moulage de corps de vanne est ex\u00e9cut\u00e9 en stricte conformit\u00e9 avec la proc\u00e9dure op\u00e9rationnelle standard (SOP). Le processus principal de moulage du corps de vanne de fabrication de moulage de corps de vanne est le suivant\u00a0: simulation de coul\u00e9e, d\u00e9veloppement de moules, inspection des mati\u00e8res premi\u00e8res, mod\u00e8le de cire, pr\u00e9paration de la coque, coul\u00e9e du m\u00e9tal, nettoyage et traitement thermique, inspection, emballage en entrep\u00f4t et exp\u00e9dition.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>D\u00e9veloppement de moisissures<ul><li>Le service technique d\u00e9veloppe le moule, et le service qualit\u00e9 utilise les trois coordonn\u00e9es pour effectuer le contr\u00f4le dimensionnel.<\/li><\/ul><\/li><li>Mod\u00e8le de cire<ul><li>L&#039;atelier utilise des machines \u00e0 cirer automatiques pour r\u00e9gler la pression de fartage, le temps de maintien, etc. et pour produire des mod\u00e8les de cire de haute qualit\u00e9.<\/li><\/ul><\/li><li>Pr\u00e9paration de la coque<ul><li>L&#039;atelier dispose de 4 lignes de production automatiques, capables de produire 1800 jeux de coques. Nous utilisons un hygrothermographe, un a\u00e9rom\u00e8tre et un pH pour surveiller l&#039;humidit\u00e9, la temp\u00e9rature et la concentration de chlorure d&#039;aluminium dans la liqueur.<\/li><\/ul><\/li><li>Coul\u00e9e de m\u00e9tal<ul><li>4 ensembles de fours de 500 kg sont en production et 3 ensembles de fours de rechange de 500 kg sont pr\u00eats lorsque la capacit\u00e9 augmente. Les op\u00e9rateurs effectuent des tests rigoureux pour r\u00e9pondre aux exigences mat\u00e9rielles.<\/li><\/ul><\/li><li>Nettoyer et traiter thermiquement<ul><li>L&#039;atelier est enti\u00e8rement \u00e9quip\u00e9 de 8 fours de traitement thermique, 3 fours de trempe, 1 grenailleuse centrale et 11 grandes grenailleuses.<\/li><\/ul><\/li><li>Inspection<ul><li>Toutes les dimensions brutes sont v\u00e9rifi\u00e9es \u00e0 l&#039;aide d&#039;une MMT. Nous disposons d&#039;une machine de duret\u00e9 Rockwell, d&#039;un instrument d&#039;\u00e9quilibre dynamique, d&#039;un appareil de mesure de la rondeur, etc. Le service qualit\u00e9 de l&#039;entreprise a certifi\u00e9 des employ\u00e9s pour effectuer des tests UT, PT, MT.<\/li><\/ul><\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Processus de moulage au sable de vanne<\/h3>\n\n\n\n<p>Chacun de nos processus de moulage de corps de vanne est ex\u00e9cut\u00e9 en stricte conformit\u00e9 avec la proc\u00e9dure op\u00e9rationnelle standard (SOP). Le processus principal de moulage du corps de vanne est le suivant\u00a0: simulation de coul\u00e9e, d\u00e9veloppement de moules, inspection des mati\u00e8res premi\u00e8res, mod\u00e9lisation (fabrication de noyaux), fusion, coul\u00e9e de m\u00e9tal, nettoyage et traitement thermique, inspection, emballage en entrep\u00f4t et exp\u00e9dition.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>D\u00e9veloppement de moisissures<ul><li>Concevoir et produire des moules selon les exigences des dessins. G\u00e9n\u00e9ralement, les moules en bois peuvent \u00eatre utilis\u00e9s pour la production d&#039;une seule pi\u00e8ce, les moules en plastique et les moules en m\u00e9tal sont fabriqu\u00e9s pour la production de masse et les gabarits peuvent \u00eatre fabriqu\u00e9s pour les moulages en masse. Notre moule est principalement fabriqu\u00e9 en aluminium.<\/li><\/ul><\/li><li>Mod\u00e9lisation (Core-Making)<ul><li>Comprend la mod\u00e9lisation (formation de la cavit\u00e9 de la pi\u00e8ce moul\u00e9e avec du sable de moulage), la fabrication du noyau (formation de la forme int\u00e9rieure de la pi\u00e8ce moul\u00e9e) et l&#039;adaptation du moule (mise en place du noyau dans la cavit\u00e9 et fermeture des flacons sup\u00e9rieur et inf\u00e9rieur). La mod\u00e9lisation est un processus cl\u00e9 dans le processus de moulage du corps de vanne.<\/li><\/ul><\/li><li>Fusion<ul><li>Selon la composition m\u00e9tallique requise, la composition chimique est adapt\u00e9e et le four de fusion appropri\u00e9 est s\u00e9lectionn\u00e9 pour fondre le mat\u00e9riau d&#039;alliage afin de former un liquide m\u00e9tallique liquide qualifi\u00e9 (y compris la composition qualifi\u00e9e et la temp\u00e9rature qualifi\u00e9e)<\/li><\/ul><\/li><li>Coul\u00e9e de m\u00e9tal<ul><li>Versez le m\u00e9tal en fusion qualifi\u00e9 dans le bac \u00e0 sable \u00e9quip\u00e9 du moule. L&#039;\u00e9tape de coul\u00e9e comporte des exigences de s\u00e9curit\u00e9 \u00e9lev\u00e9es et nous appliquons un contr\u00f4le rigoureux des processus pour prot\u00e9ger la s\u00e9curit\u00e9 de nos employ\u00e9s.<\/li><\/ul><\/li><li>Nettoyer et traiter thermiquement<ul><li>Une fois le m\u00e9tal fondu coul\u00e9 et solidifi\u00e9, le sable de moulage est retir\u00e9 et la porte et les autres accessoires sont d\u00e9mont\u00e9s pour former la pi\u00e8ce moul\u00e9e requise.<\/li><\/ul><\/li><li>Inspection<ul><li>Toutes les dimensions brutes sont v\u00e9rifi\u00e9es \u00e0 l&#039;aide d&#039;une MMT. Nous disposons d&#039;une machine de duret\u00e9 Rockwell, d&#039;un instrument d&#039;\u00e9quilibre dynamique, d&#039;un appareil de mesure de la rondeur, etc. Le service qualit\u00e9 de l&#039;entreprise a certifi\u00e9 des employ\u00e9s pour effectuer des tests UT, PT, MT.<\/li><\/ul><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Les mat\u00e9riaux des pi\u00e8ces moul\u00e9es de valve sont les suivants\u00a0:<\/h2>\n\n\n\n<p><strong>Acier Carbone<\/strong>\u00a0(principalement pour les moulages de vannes haute pression) : WCA, WCB, ZG25, ZG200-350, ASTM A216 WCA\/WCB\/WCC, GS25.<\/p>\n\n\n\n<p><strong>Acier inoxydable<\/strong>: SS304, SS316, PH17-4, ASTM A351 CF8\/CF8M\/CF3\/CF3M, ZG0Cr18Ni9, zg0Cr18Ni12Mo2, ZG00Cr18Ni10.<\/p>\n\n\n\n<p><strong>Fonte grise<\/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>Fonte ductile\u00a0:<\/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>NON.<\/td><td>Mat\u00e9riaux<\/td><td>Pression<\/td><td>Temp\u00e9rature<\/td><td>Moyen<\/td><td>Notes<\/td><\/tr><tr><td>1<\/td><td>fonte grise<\/td><td>\u22641.0MPa<\/td><td>-10 \u00b0C ~ 200 \u00b0C<\/td><td>eau, vapeur, air, gaz et huile<\/td><td>HT200,<br>HT250,<br>HT300,<br>HT350<\/td><\/tr><tr><td>2<\/td><td>Fonte forgeable<\/td><td>\u2264 2,5 MPa<\/td><td>-30 ~ 300 \u00b0C<\/td><td>eau, vapeur, air et huile<\/td><td>KTH300-06,<br>KTH330-08,<br>KTH350-10<\/td><\/tr><tr><td>3<\/td><td>Fonte ductile<\/td><td>\u22644.0MPa<\/td><td>-30\uff5e350\u00b0C<\/td><td>eau, vapeur, air et huile<\/td><td>QT400-15,<br>QT450-10,<br>QT500\u20147<\/td><\/tr><tr><td>4<\/td><td>Fonte ductile \u00e0 haute teneur en silicium r\u00e9sistante aux acides<\/td><td>\u2264 0,25MPa<\/td><td>en dessous de 120 \u00b0C<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><td>5<\/td><td>Acier Carbone<\/td><td>\u226432,0 MPa<\/td><td>-30\uff5e425\u00b0C<\/td><td>eau, vapeur, air, hydrog\u00e8ne, ammoniac, azote et produits p\u00e9troliers<\/td><td>WC1, WCB, ZG25 et acier de haute qualit\u00e9 20, 25, 30 et acier de construction faiblement alli\u00e9 16Mn.<\/td><\/tr><tr><td>6<\/td><td>Alliage de cuivre<\/td><td>\u2264 2,5 MPa<\/td><td>-40 ~ 250 \u00b0C<\/td><td>eau, eau de mer, oxyg\u00e8ne, air, huile et autres milieux<\/td><td>ZGnSn10Zn2 (bronze \u00e9tain), H62, Hpb59-1 (laiton), QAZ19-2, QA19-4 (bronze aluminium).<\/td><\/tr><tr><td>7<\/td><td>Cuivre haute temp\u00e9rature<\/td><td>\u226417,0MPA<\/td><td>\u2264570\u00b0C<\/td><td>vapeur et produits p\u00e9troliers<\/td><td>ZGCr5Mo, 1Cr5M0, ZG20CrMoV, ZG15Gr1Mo1V, 12CrMoV, WC6, WC9 et autres qualit\u00e9s.<\/td><\/tr><tr><td>8<\/td><td>Acier basse temp\u00e9rature<\/td><td>\u2264 6,4 MPa<\/td><td>\u2265 -196\u00b0C<\/td><td>\u00e9thyl\u00e8ne, propyl\u00e8ne, gaz naturel liqu\u00e9fi\u00e9, azote liquide et autres milieux<\/td><td>ZG1Cr18Ni9<br>0Cr18Ni9<br>1Cr18Ni9Ti<br>ZG0Cr18Ni9<\/td><\/tr><tr><td>9<\/td><td>Acier inoxydable r\u00e9sistant aux acides<\/td><td>\u2264 6,4 MPa<\/td><td>\u2264 200\u00b0C<\/td><td>Acide nitrite, acide ac\u00e9tique et autres milieux<\/td><td>ZG0Cr18Ni9Ti<br>ZG0Cr18Ni10<br>ZG0Cr18Ni12Mo2Ti<br>ZG1Cr18Ni12Mo2Ti<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Ces derni\u00e8res ann\u00e9es, les fabricants chinois de vannes de coul\u00e9e ont r\u00e9alis\u00e9 un contr\u00f4le automatique puissant et sans surveillance de la vanne, de sorte que la qualit\u00e9 des fabricants de vannes doit choisir la vanne pour faire attention \u00e0 quel point\u00a0?<\/p>\n\n\n\n<p>I. param\u00e8tres et sp\u00e9cifications<\/p>\n\n\n\n<p>Ce qu&#039;on appelle les param\u00e8tres des sp\u00e9cifications de la vanne peuvent \u00e9galement \u00eatre en bref les types de produits, le principe de la vanne est coh\u00e9rent mais les d\u00e9tails sont diff\u00e9rents, ils sont donc applicables \u00e0 diff\u00e9rents endroits, tels que le fabricant de vannes de clapets coupe-feu dans le Le courant dominant de 3 C contient un clapet coupe-feu de fum\u00e9e et un clapet coupe-feu automatique, etc. toutes sortes de types, les principaux param\u00e8tres de contr\u00f4le et les sp\u00e9cifications constituent la base du choix du clapet coupe-feu.<\/p>\n\n\n\n<p>II. Lieu applicable et temp\u00e9rature de fonctionnement<\/p>\n\n\n\n<p>Rentable <a href=\"https:\/\/zecovalve.com\/fr\/produit\/resilient-seated-gate-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><mark style=\"background-color:var(--base)\" class=\"has-inline-color has-contrast-2-color\">Fabricant de vannes \u00e0 vanne en fonte<\/mark><\/strong> <\/a>l&#039;identification du produit sera clairement marqu\u00e9e dans la temp\u00e9rature de fonctionnement du produit, elle d\u00e9terminera directement son application, certaines vannes peu co\u00fbteuses ont une certaine polyvalence et g\u00e9n\u00e9ralit\u00e9, mais dans la mesure du possible, choisissez de l&#039;installer dans la zone principale, telle que les b\u00e2timents publics, temp\u00e9rature d&#039;action du feu Les registres du syst\u00e8me d&#039;\u00e9chappement sont relativement \u00e9lev\u00e9s et la temp\u00e9rature d&#039;action des registres coupe-feu du syst\u00e8me de climatisation r\u00e9sidentiel ou commercial ordinaire dans le 3 C est relativement basse.<\/p>\n\n\n\n<p>III. Exigences fonctionnelles<\/p>\n\n\n\n<p>Pour les usines de vannes, les vannes du m\u00eame produit \u00e0 diff\u00e9rents endroits ont des exigences diff\u00e9rentes, vous choisissez donc 3 c avant soit par le haut, soit par le bas, la ligne des clapets coupe-feu dans le choix et l&#039;achat d\u00e9pend de sa fonction de base et de la port\u00e9e applicable, telle que le clapet coupe-feu. , par exemple, cela d\u00e9pend toujours si vous avez besoin d&#039;une vanne d&#039;incendie 3 C qui a la fonction d&#039;ouverture et de fermeture automatiques, si elle peut r\u00e9pondre aux besoins d&#039;ouverture normale, s&#039;il y a une t\u00e9l\u00e9commande et une sortie de signal, et d&#039;autres fonctions.<\/p>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Balises associ\u00e9es :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/\">Soupape ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/gate-valve\/\">Fabricant de robinets-vannes \u2013 Diff\u00e9rents types de robinets-vannes<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/produit\/manual-gate-valve\/\">Fabricant de robinets-vannes \u00e0 commande manuelle<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/the-function-of-globe-valve-in-pipeline-system.html\/\">Que sont les vannes \u00e0 soupape\u00a0?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/history-of-automatic-control-valve-zeco-valve-industrial-valve-manufacturer.html\/\">Que sont les vannes de r\u00e9gulation automatique ?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/tag\/shanghai-pressure-reducing-valve-factory\/\">Usine de soupapes de r\u00e9duction de pression de Shanghai<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">Qu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/the-difference-between-globe-valve-and-ball-valve.html\/\">Robinet \u00e0 soupape et robinet \u00e0 bille<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/produit\/12-inch-gate-valve\/\">Fournisseur de vannes \u00e0 vanne de 12 pouces<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/thermoplastic-materials-as-valve-seat.html\/\">Mat\u00e9riaux thermoplastiques comme si\u00e8ge de robinet \u00e0 tournant sph\u00e9rique et si\u00e8ge de vanne papillon<\/a>\n\n<\/div>\n\n\n\n<p>Dix articles avant et apr\u00e8s<\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/causes-of-failure-and-damage-of-stainless-steel-globe-valves.html\/\">Causes de d\u00e9faillance et d&#039;endommagement des vannes \u00e0 soupape en acier inoxydable<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/china-casting-valve-manufacturers.html\/\">Fabricants de vannes de coul\u00e9e en Chine<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/cast-iron-check-valve-supplier.html\/\">Fournisseur de clapet anti-retour en fonte<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/how-does-the-cryogenic-cast-iron-gate-valve-work%ef%bc%9f.html\/\">Comment fonctionne le robinet-vanne cryog\u00e9nique en fonte ?<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/pressure-relief-valve-can-not-be-installed-in-reverse.html\/\">La soupape de surpression ne peut pas \u00eatre install\u00e9e \u00e0 l\u2019envers<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/cast-steel-ball-valve-cast-steel-ball-valves-supplier.html\/\">Robinet \u00e0 tournant sph\u00e9rique en acier moul\u00e9, fournisseur de robinets \u00e0 tournant sph\u00e9rique en acier moul\u00e9<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/precautions-for-the-use-of-cast-iron-valves.html\/\">Pr\u00e9cautions d&#039;utilisation des vannes en fonte<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/china-industrial-valves-brand-din-angle-type-globe-valve-supplier.html\/\">Marque de vannes industrielles en Chine, fournisseur de vannes \u00e0 soupape de type angle DIN<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/china-valve-manufacturers-teach-you-how-to-maintain-the-valve.html\/\">Les fabricants chinois de vannes vous apprennent \u00e0 entretenir la vanne<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/fr\/china-st-gate-valve-supplier-manufacturer.html\/\">Chine st Fournisseur et fabricant de vannes \u00e0 vanne<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Moulage de vanne La vanne est utilis\u00e9e pour modifier la section de passage et le sens d&#039;\u00e9coulement du fluide. Il a les fonctions\u2026 <a title=\"Moulage de vannes \u2013 Fabricants de vannes de coul\u00e9e\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/fr\/analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point.html\" aria-label=\"Plus sur Valve Casting \u2013 Fabricants de valves de coul\u00e9e\">Lire plus<\/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\/fr\/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\/fr\/analysis-of-china-casting-valve-manufacturers-to-choose-valves-to-pay-attention-to-what-point.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\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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