铬化,用铬酸盐溶液与金属作用在其表面生成三价或六价铬化层的过程,多用于铝、镁及其合金的处理,对钢铁也能形成铬化层,但很少单独使用,常和磷化配套使用,以封闭磷化层的孔隙,使磷化层中裸露的钢铁钝化,以抑制残余磷化加速剂的腐蚀作用,进一步增加防护能力。
n. chromizing ; chromaking
重点介绍了新的铸造技术,包括无熔剂熔炼和非铬化阳极处理。
New casting technologies including fluxless melting and nonchromated anodisation surface treatments are emphasised.
为我国水泥预分解窑高温带用耐火材料无铬化提供了一条可行的技术路线。
The research provides a feasible technical route for the refractory free chrome for rotary cement kilns in our country.
为了消除铬公害以及替代燃料的使用,研制水泥窑用碱性砖的无铬化势在必行。
Magnesia chrome bricks must be replaced by chrome free basic bricks because of chrome pollution and for utilization of substituting fuel in cement kiln.
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