dicas de lan\u00e7amento<\/a> e o bocal \u00e9 uma pe\u00e7a fundamental na produ\u00e7\u00e3o de lingotamento cont\u00ednuo e lamina\u00e7\u00e3o. Suas formas variam, mas todos s\u00e3o equipados com defletores ovais, angulares ou de outros formatos na entrada do metal l\u00edquido, de modo que o metal l\u00edquido flua para ambos os lados. O princ\u00edpio b\u00e1sico consiste em fazer com que o metal l\u00edquido saia da boca de maneira uniforme, a fim de garantir a consist\u00eancia da temperatura e da vaz\u00e3o do metal.<\/p>\n![\"Bocal](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/10\/Feed-Nozzle-1.jpg\")
<\/p>\n
O bico de alimenta\u00e7\u00e3o \u00e9 uma placa refrat\u00e1ria fabricada com fibra cer\u00e2mica e fibra de sil\u00edcio-alum\u00ednio por meio de prensagem a v\u00e1cuo. Trata-se de um produto refrat\u00e1rio leve. Suas caracter\u00edsticas s\u00e3o: em altas temperaturas, boa estabilidade e baixo coeficiente de expans\u00e3o; boa reten\u00e7\u00e3o de calor; baixa condutividade t\u00e9rmica. Possui boa resist\u00eancia ao choque t\u00e9rmico; n\u00e3o reage com o metal fundido e \u00e9 resistente \u00e0 corros\u00e3o met\u00e1lica; apresenta bom desempenho de usinagem e pode ser usinado conforme necess\u00e1rio.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
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