High-temperature-resistant ZL114A preparation process method based on vacuum counter-pressure casting

The invention discloses a high-temperature-resistant ZL114A preparation process method based on vacuum differential pressure casting, which comprises the following steps of: putting a ZL114A alloy or raw materials for preparing the ZL114A alloy into a vacuum furnace, smelting, refining, modifying, f...

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Main Authors PENG YAN, LI HONGWEI, GAO LIMING, XU SHENGFA, CHEN TUANBIAO, ZHENG ZHIPENG, LIU JINGWEI
Format Patent
LanguageChinese
English
Published 17.11.2023
Subjects
ALLOYS
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:The invention discloses a high-temperature-resistant ZL114A preparation process method based on vacuum differential pressure casting, which comprises the following steps of: putting a ZL114A alloy or raw materials for preparing the ZL114A alloy into a vacuum furnace, smelting, refining, modifying, fixing a casting mold and performing vacuum differential pressure casting, and is characterized in that the vacuum differential pressure casting process parameters are as follows: the solidification pressure is 350kPa, the solidification differential pressure is 30-90kPa, the vacuum degree is 20kPa, the mold filling pressure is 20kPa, and the vacuum degree is 20kPa; the pressure maintaining time is 320 s, and the mold filling temperature is 700 DEG C; according to the high-temperature-resistant ZL114A preparation process method based on vacuum counter-pressure casting, the alloy density is improved, and the defects of shrinkage porosity and shrinkage cavities are reduced; in a microscopic structure, a primary phase
Bibliography:Application Number: CN202311057069