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发明授权
CN109022902B 一种低铅抗脱锌环保铜棒及制备工艺 有权 质押

一种低铅抗脱锌环保铜棒及制备工艺
摘要：
本发明涉及一种低铅抗脱锌环保铜棒及制备工艺，由下述质量百分比的原料组成:0.05～0.09％的Fe、0.003～0.05％的Ag、0.1～0.15％的Bi、0.01～0.08％的Al、0.005～0.01％的Pb、0.002～0.015％的Ni、0.01～0.06％的Zn、0.002～0.05％的Mg、0.05～0.2％的Si、0.005～0.02％的Cr、0.001～0.03％的Zr、0.005～0.02％砷铜合金和0.004～0.0045％B元素变质细化剂，其余为Cu及杂质；并且所述铜棒通过热挤压经过慢冷却液体冷却后，再经过高频电磁加热将表面温度加热至950～1050℃后对表面喷涂600～800目的Si粉的工序制成本发明制备的铜棒含铅量低，抗脱锌效果好，同时表面强度高兼具较好的易加工性能。
摘要（英）：

The invention relates to a low-lead dezincification-resistance environment-friendly copper bar and a preparing process. The copper bar comprises, by mass percent, 0.05 to 0.09% of Fe, 0.003 to 0.05% of Ag, 0.1 to 0.15% of Bi, 0.01 to 0.08% of Al, 0.005 to 0.01% of Pb, 0.002 to 0.015% of Ni, 0.01 to 0.06% of Zn, 0.002 to 0.05% of Mg, 0.05 to 0.2% of Si, 0.005 to 0.02% of Cr, 0.001 to 0.03% of Zr, 0.005 to 0.02% of a copper-arsenic alloy and 0.004 to 0.0045% of B-element metamorphic refiner and the balance Cu and impurities. The copper bar is subjected to heat extrusion and is cooled through slow cooling liquid, through high-frequency electromagnetic heating, the surface temperature is increased to 950 to 1050 DEG C, the surface is sprayed with 600-800-mesh Si powder, and the copper bar is prepared and low in lead amount and good in dezincification effect. Meanwhile, the surface strength is high, and the good easy-machining property is achieved.

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