{"id":10045,"date":"2021-08-24T08:33:10","date_gmt":"2021-08-24T08:33:10","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10045"},"modified":"2021-08-24T08:33:10","modified_gmt":"2021-08-24T08:33:10","slug":"metal-burning-loss","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/metal-burning-loss\/","title":{"rendered":"Perda por queima de metal"},"content":{"rendered":"

Durante o processo de fundi\u00e7\u00e3o, a perda por combust\u00e3o do alum\u00ednio fundido \u00e9 inevit\u00e1vel, mas a perda resultante de alum\u00ednio met\u00e1lico n\u00e3o pode ser ignorada. Como reduzir a perda por combust\u00e3o do metal fundido torna-se o ponto-chave. \u00c9 necess\u00e1rio controlar rigorosamente a temperatura do alum\u00ednio fundido, reduzir a agita\u00e7\u00e3o do alum\u00ednio fundido por meio do aprimoramento do m\u00e9todo de mistura, organizar a produ\u00e7\u00e3o de maneira razo\u00e1vel e compacta, reduzir o tempo de contato do alum\u00ednio fundido com o ar, refor\u00e7ar a manuten\u00e7\u00e3o dos equipamentos de fundi\u00e7\u00e3o, manter as condi\u00e7\u00f5es operacionais dos equipamentos e otimizar o processo de fundi\u00e7\u00e3o. O movimento de correntes subjacentes da liga de alum\u00ednio ter\u00e1 um efeito significativo na redu\u00e7\u00e3o eficaz da perda por oxida\u00e7\u00e3o do alum\u00ednio fundido durante o processo de fundi\u00e7\u00e3o.<\/p>\n

Como reduzir a perda por queima do metal?<\/strong><\/p>\n

Controlar rigorosamente e ajustar prontamente a temperatura do alum\u00ednio l\u00edquido bruto para atender \u00e0s necessidades da produ\u00e7\u00e3o de fundi\u00e7\u00e3o. Ap\u00f3s a inje\u00e7\u00e3o do alum\u00ednio fundido a temperatura mais elevada no forno de mistura, o material frio \u00e9 adicionado oportunamente para reduzir a temperatura do alum\u00ednio fundido a 730 \u2103, o que pode reduzir efetivamente a influ\u00eancia da temperatura na queima por oxida\u00e7\u00e3o.<\/p>\n

Fortalecer a gest\u00e3o de agentes de refino<\/a>, ligas-m\u00e3e e outros materiais de carga, evitam que impurezas sejam incorporadas aos materiais de carga, garantem a limpeza desses materiais e reduzem a gera\u00e7\u00e3o de \u00f3xidos met\u00e1licos e n\u00e3o met\u00e1licos durante o processo de fundi\u00e7\u00e3o.<\/p>\n

\"Refinamento<\/p>\n

Aprimorar o m\u00e9todo de agita\u00e7\u00e3o do alum\u00ednio fundido. Na implementa\u00e7\u00e3o da opera\u00e7\u00e3o de \u201cagita\u00e7\u00e3o a portas fechadas\u201d, o grau de perturba\u00e7\u00e3o do alum\u00ednio fundido \u00e9 muito menor do que no caso da agita\u00e7\u00e3o mec\u00e2nica, o que reduz o contato entre o alum\u00ednio fundido e o ar durante a agita\u00e7\u00e3o. Isso n\u00e3o s\u00f3 reduz a rea\u00e7\u00e3o de oxida\u00e7\u00e3o entre o ar e o alum\u00ednio fundido, como tamb\u00e9m diminui a absor\u00e7\u00e3o de hidrog\u00eanio pelo alum\u00ednio fundido, mantendo a solubilidade do hidrog\u00eanio no alum\u00ednio fundido no m\u00ednimo poss\u00edvel. Isso n\u00e3o s\u00f3 contribui para a melhoria da qualidade do produto, como tamb\u00e9m pode reduzir efetivamente a perda por queima do alum\u00ednio fundido.<\/p>\n

Uso Lavanderias DC<\/a> na medida do poss\u00edvel, reduza as curvas desnecess\u00e1rias e minimize ao m\u00e1ximo o comprimento da linha de trabalho dos canais. Cubra a c\u00e9lula de fluxo com uma placa de fibra de silicato de alum\u00ednio.<\/p>\n

A recupera\u00e7\u00e3o e a separa\u00e7\u00e3o oportunas dos res\u00edduos, do alum\u00ednio espirrado e do alum\u00ednio residual presentes na esc\u00f3ria de \u00f3xido produzida durante o processo de produ\u00e7\u00e3o, bem como sua adi\u00e7\u00e3o ao forno de mistura de maneira adequada para a refundi\u00e7\u00e3o, tamb\u00e9m constituem uma forma de reduzir a perda por queima do metal.<\/p>","protected":false},"excerpt":{"rendered":"

During the casting process, the metal burning loss of molten aluminum is inevitable, but the resulting loss of metallic aluminum cannot be ignored. 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