conseils pour le moulage<\/a> La buse est un \u00e9l\u00e9ment cl\u00e9 du processus de coul\u00e9e continue et de laminage. Ses formes varient, mais elles sont toutes \u00e9quip\u00e9es de d\u00e9flecteurs ovales, angulaires ou d\u2019autres formes \u00e0 l\u2019entr\u00e9e du m\u00e9tal en fusion, de mani\u00e8re \u00e0 ce que celui-ci s\u2019\u00e9coule vers les deux c\u00f4t\u00e9s. Le principe de base consiste \u00e0 faire en sorte que le m\u00e9tal en fusion s'\u00e9coule uniform\u00e9ment par l'embouchure afin de garantir la r\u00e9gularit\u00e9 de la temp\u00e9rature et du d\u00e9bit du m\u00e9tal.<\/p>\n![\"Buse](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/10\/Feed-Nozzle-1.jpg\")
<\/p>\n
La buse d'alimentation est une plaque r\u00e9fractaire fabriqu\u00e9e \u00e0 partir de fibres c\u00e9ramiques et de fibres de silico-alumine par pressage sous vide. Il s'agit d'un produit r\u00e9fractaire l\u00e9ger. Ses caract\u00e9ristiques sont les suivantes : \u00e0 haute temp\u00e9rature, il pr\u00e9sente une bonne stabilit\u00e9 et un faible coefficient de dilatation ; il offre une bonne conservation de la chaleur et sa conductivit\u00e9 thermique est faible. Il pr\u00e9sente une bonne r\u00e9sistance aux chocs thermiques ; il ne r\u00e9agit pas avec le m\u00e9tal en fusion et r\u00e9siste \u00e0 la corrosion m\u00e9tallique ; il offre de bonnes performances d'usinage et peut \u00eatre travaill\u00e9 \u00e0 volont\u00e9.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
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