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huangguaha木蟲之王 (文壇精英)
我不是我
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[求助]
1雙金屬管方面,謝謝
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| A casting method of a naphata cracker tube using bi-metal centrifugal casting and a naphata cracker tube manufactured by the method are provided to reduce the manufacturing cost while maintaining the quality of the naphata cracker tube such as creep resistance and carburizing resistance. A casting method of a naphata cracker tube(100) using bi-metal centrifugal casting comprises a step of forming an outer tube(70) by injecting an outer tube material including nickel in a hollow metal mold while rotating the mold, and a step of forming an inner tube(80) by injecting an inner tube material including nickel in the mold while rotating the mold. |
木蟲之王 (文壇精英)
我不是我
| 本文提供了一種使用雙金屬離心鑄造技術(shù)來鑄造石油裂化管的方法,并提供了一個使用此種方法生產(chǎn)的石油裂化管,以達(dá)到在減少生產(chǎn)成本的同時,保證石油裂化管的蠕變強(qiáng)度、滲碳電阻等質(zhì)量指標(biāo)。使用雙金屬離心鑄造方法來鑄造石油裂化管(100)的步驟包括:第一步,將含鎳的外管材料注入旋轉(zhuǎn)的空心金屬模具,以形成一個外管(70);第二步,將含鎳的內(nèi)管材料注入旋轉(zhuǎn)的模具,以形成一個內(nèi)管(80)。 |
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