添加石墨粉对铍铜丝氧化烧损的影响

Adding graphite powder on influence of beryllium copper wire oxidation burning loss

采用EDS研究铍铜丝热处理氧化物和氧化膜的生长过程,并通过添加石墨粉的热处理方法,减少铍铜丝氧化机会,提高加热炉加热效率,缩短材料装炉到保温的时间,进而将铍铜丝的累计氧化烧损率由4.37%降低到1.83%,热处理后酸洗时铍铜丝损耗由6.9%降低到6.0%,由于热处理氧化较轻,酸洗后表面的麻点增多,但不会影响成品的表面光洁度。

To research beryllium copper wire heat treatment oxide and oxide film growth process by EDS, and to reduce the beryllium copper wire oxide opportunities by adding graphite powder in heat treatment, improve the efficiency of heating fur- nace heating, shorten the time of the furnace material charging to the heat preservation, the accumulative oxidation burning loss rate of beryllium copper wire decreased from 4.37% to 1.83%, the pickling beryllium copper wire loss will be lower from 6.9% to 6.0% after heat treatment, at the same time due to the heat treatment oxidation is lighter, pitting on the wire surface after acid pickling treatment increase possibly, but will not affect the product＇ s surface finish.