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发明公开
CN110172601A 一种ESH状态C19400铜合金带材的制备方法 无效 - 驳回

一种ESH状态C19400铜合金带材的制备方法
摘要：
本发明涉及C19400铜合金带材的改性方法，具体为一种ESH状态C19400铜合金带材的制备方法，该方法中合金熔炼：Cu、Fe、P元素含量在符合国标的基础上添加微量元素，微量元素为Si、Co、Sn、Zn、Ni、Mg中的一种或不同种类组合，微量元素总含量控制范围≤0.2%，熔炼温度1150℃―1300℃，保温时间不小于20min；固溶处理：固溶温度控制在600℃―900℃之间，固溶时间不小于30s，淬火后温度不高于200℃；时效处理：采用分级时效方式进行，一级、二级时效温度控制范围控制在400℃―600℃，保温时间2min―10h；成品冷轧：成品加工率范围10%―60%。本发明提高了C19400铜合金带材的性能指标，使其满足ESH状态要求，HV达到150以上，抗拉强度达到550MPa，以满足特殊功能的要求。
摘要（英）：

The invention relates to a modifying method of C 19400 copper alloy strips, in particular to a preparation method of ESH-state C19400 copper alloy strips. In the method, alloys are smelted as follows:microelements are fed on the basis of the contents of Cu, Fe and P elements meeting the national standard, and are one or combinations of different types of Si, Co, Sn, Zn, Ni and Mg; the total content of the microelements is controlled to be not more than 0.2%; the smelting temperature is 1150-1300 DEG C; and the insulation time is not shorter than 20 min; solid-solution treatment: the solid-solution temperature is controlled within 600-900 DEG C; the solid-solution time is not shorter than 30 s; and the temperature is not higher than 200 DEG C after quenching; aging: a graded aging mode isadopted; the first-grade and second-grade aging temperatures are controlled in a range of 400-600 DEG C; and the insulation time is 2 min to 10 h; and cold rolling of finished products: the finished product machining rate is in a range of 10-60%. The performance indexes of the C 19400 copper alloy strips are improved; the ESH-state requirements are met; the HV reaches above 150; and the tensile strength reaches 550 MPa to meet special function requirements.

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