可焊性铝卷材连续电镀工艺制造技术

本发明专利技术涉及一种可焊性铝卷材连续电镀工艺，特征是：包括以下工艺步骤：（1）配制碱液、酸液、锌合金液、退锌溶液、镀镍液和镀锡液；（2）除油；（3）一次水洗；（4）碱液刻蚀；（5）二次水洗；（6）酸洗；（7）三次水洗；（8）第一次浸锌合金；（9）硝酸退锌；（10）第二次浸锌合金；（11）镀镍：对经第二次浸锌合金处理后的铝卷材进行电镀镍，电镀镍的电流密度为2~10A/cm2；（12）电镀锡：对经镀镍处理后的铝卷材进行电镀锡，电镀锡的电流密度为2~15A/cm2，镀锡液的温度为30～60℃。本发明专利技术保证了电镀锡层与铝材的结合力良好，从而不起泡、无脱落、不起皮；成本低、污染少。?

Process for continuous electroplating of weldable aluminium coil

The invention relates to a welding aluminum coil continuous plating process is characterized in that the process comprises the following steps: (1) preparation of alkali, acid, zinc alloy liquid, dezincifying solution, nickel plating and tin plating solution; (2) removing oil; (3) a washing; (4) alkaline etching; (5) two (6) washing; pickling; (7) washing three times; (8) the first zinc alloy; (9) nitrate dezincifying; (10) second (11) zinc alloy; nickel plating: Nickel Electroplating on aluminum sheet zinc alloy treated by second times. And the current density of nickel plating is 2~10A/cm2; (12): on the tin plating nickel plated aluminum coil after the tin plating, electric current density of tin is 2~15A/cm2, bath temperature is 30 to 60 DEG C. The invention ensures that the bonding ability of the electroplated tin layer and the aluminum material is good, thereby no foaming, no peeling or peeling, low cost and less pollution. ?

【技术实现步骤摘要】

【技术保护点】
一种可焊性铝卷材连续电镀工艺，其特征是：包括以下工艺步骤：（１）配制碱液、酸液、锌合金液、退锌溶液、镀镍液和镀锡液，待用；所述碱液的配制：氢氧化钠５～１００ｇ／Ｌ、碳酸钠１０～５０ｇ／Ｌ、磷酸钠１０～５０ｇ／Ｌ、氟化钠１～１０ｇ／Ｌ、十二烷基硫酸钠０．１～２ｇ／Ｌ，其余为水；将上述氢氧化钠、碳酸钠、磷酸钠、氟化钠、十二烷基硫酸钠在常温下与水混合配制成碱液；所述酸液的配制：硝酸３０～４０ｇ／Ｌ，硫酸５～１０ｇ／Ｌ，余量为水，单位为质量百分数；将上述硝酸、硫酸在常温下与水混合配制成酸液；所述锌合金液的配制：氢氧化钠３０～３００ｇ／Ｌ、氧化锌１０～７０ｇ／Ｌ、硫酸镍１０～６０ｇ／Ｌ、酒石酸钾钠１０～...

【技术特征摘要】

【专利技术属性】
技术研发人员：周明华，
申请(专利权)人：无锡新大中薄板有限公司，
类型：发明
国别省市：32