Method for improving comprehensive performance of copper alloy by using magnetic suspension process

The invention discloses a method for improving the comprehensive performance of a copper alloy by using a magnetic suspension process. The method comprises the steps that firstly, the raw materials are prepared according to the copper alloy composition, and then placed in a water-cooled copper cruci...

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Bibliographic Details
Main Authors XU YUSONG, DENG RUI, GU SHENYI, WANG HE, LI HONGLI
Format Patent
LanguageChinese
English
Published 15.03.2019
Subjects
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:The invention discloses a method for improving the comprehensive performance of a copper alloy by using a magnetic suspension process. The method comprises the steps that firstly, the raw materials are prepared according to the copper alloy composition, and then placed in a water-cooled copper crucible in a vacuum chamber, and the vacuum degree is 10<-5>-10<-2> Pa; and secondly, the raw materialsare melted at the conditions that the voltage is 4000-7000 V and the current is 1.4-3.6 A, then subjected to magnetic suspension smelting and purification in a temperature range of 1200 to 1400 DEG Cfor 20 to 30 minutes, and then rapidly cooled to the room temperature in the water-cooled copper crucible to obtain the purified and rapid-cooled copper alloy. The method can effectively improve the comprehensive mechanical properties and corrosion resistance of the copper alloy. Compared with a conventional process, the elongation rate is increased by 20-60%, the hardness is increased by 25-35%,the tensile strength is inc
Bibliography:Application Number: CN201811632570