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鎂碲銅棒的生產步驟

時間:2019-09-20| 作者:Admin

一款優(yōu)質鎂碲銅棒的生產步驟包括以下幾點:
1、上引連鑄銅桿這是它生產準備前的第一步:在熔煉裝置中熔煉和連鑄,覆蓋炭和石墨片,用牽引裝置連續(xù)鑄造銅棒,熔煉爐溫度為1100℃~1200℃,保溫爐溫度為1100℃~1200℃,銅棒直徑為12.5≤45 mm,連鑄銅棒速度為200≤700 mm/min。按重量百分比計算,制得的銅棒中含碲0.15≤0.2%,鎂0.2≤0.7%,硒0.1≤0.15%,銻0.1≤0.15%,其中硒銻比為1≤1,銀、鈦、鈰、硼、鈷、鉻、鎳、鈮等元素中的任何兩種元素均為0.0001≤0.005%。
2、銑削:對得到的銅棒進行銑削,銅棒銑削尺寸為0.2×1mm;
3、所得的銅桿為原料,采用連續(xù)擠壓機組的成型裝置擠壓銅棒,成型裝置使用前先進行預熱,預熱時間為3小時,預熱溫度為450℃;成型裝置的模具厚度為20~30mm,模具的定徑帶長度為5~15mm,模具的模角為5~15°;連續(xù)擠壓制備的鎂碲銅棒的抗拉強度要大于220MPa,晶粒度為0.01-0.02mm,伸長率大于30%。
4、拉伸:用碲鎂銅棒進行拉伸變形,變形系數為1.15≤1.5,拉伸變形速度小于8m≤min,用乳化液或植物油作拉拔潤滑劑。
5、矯直:矯直變形系數為1.01≤/m的碲鎂桿。矯直變形后,銅桿的扭轉度不大于0.5mm/m,銅棒的平面度不大于1mm/m,銅棒的直線度不大于0.5mm/m。
6、切割:切割鎂碲銅棒,對它進行分切。
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