日期:2012-12-03 15:38
融镀金的外观及性质可由下列因素改变
(1)镀层的组成(coating composition)
(2)镀液的温度(bath temperature)
(3)浸镀时间(time of immersion)
(4)却速率(rate of cooling)
(5)热处理(reheating)
热浸镀金对基材的机械性质的影响:
(1)抗拉强度(tensile strenghth):不改变
(2)降伏强度(yied strenghth):不改变
(3)焊接应力(weld stress):减少50-60%
(4)成型性(formability):不改变
(5)疲劳强度(fatique strenghth):较未处理的好
(6)氢脆(hydrogen embrittlement):影响不大
(7)粒间脆列(intercrystalline cracking):因锌渗入钢铁