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环保无铬钝化剂

发布日期:2019-10-12 浏览次数:12

超声波清洗剂的分类.jpg

      三价铬钝化剂和无铬钝化剂,这两种钝化剂均达到国内ROSH,SGS国际认证标准,长远的看来无铬钝化剂将会环保法越来越严格的未来成为钝化工艺的主要研发方向,实现真更加绿色节能的绿色环保。那么,三价铬钝化剂和无铬钝化剂在使用效果上有什么区别?

     Trivalent chromium passivator and chromium-free passivator, these two passivators have reached the domestic ROSH, SGS international certification standards. In the long run, chromium-free passivator will become the main research direction of passivation process in the future with more and more stringent environmental protection methods, so as to achieve a truly green and energy-saving green environmental protection. So, what is the difference between trivalent chromium passivator and non-chromium passivator?

1、钝化膜颜色。三价铬钝化后的钝化膜色可以结合耐腐蚀性能调整生成本色、浅蓝色和彩色;无铬钝化剂钝化后是浅蓝色和本色透明膜层。

1. Passivation film color. The passivation film color after trivalent chromium passivation can be adjusted to form natural color, light blue color and color combined with corrosion resistance. After passivation with chromium-free passivator, it is light blue and natural transparent film.

2、耐腐蚀能力。三价铬钝化剂钝化后本色的中性盐雾可以达到72-96小时或以上;蓝色的中性盐雾可以达到96小时或以上;彩色的中性盐雾可以达到200小时或以上。环保无铬钝化剂的钝化膜中性盐雾一般只可以达到48小时,杂质比较少的材料才可以达到72小时。

2. Corrosion resistance. After passivation with trivalent chromium passivator, the natural neutral salt spray can reach 72-96 hours or more; the blue neutral salt spray can reach 96 hours or more; and the color neutral salt spray can reach 200 hours or more. The neutral salt spray in the passivation film of environmental chromium-free passivator can only reach 48 hours, while the material with less impurities can reach 72 hours.

3、环保特性。三价铬钝化剂的污水处理,主要是要将三价铬沉淀,比起六价铬容易处理得多,需要COD处理,三价铬不是环保严禁使用物质(未来的环保法发展方向无疑是将不再含有铬金属离子)环保无铬钝化剂废液处理无需沉淀任何重金属,只需COD处理。

3. Environmental protection characteristics. Trivalent chromium passivator wastewater treatment is mainly to precipitate trivalent chromium, which is much easier to deal with than hexavalent chromium. It needs COD treatment. Trivalent chromium is not a strictly prohibited substance for environmental protection (the future development direction of environmental protection method is no longer containing chromium metal ions). It is no need to precipitate any heavy metals in the treatment of environmental chromium-free passivator wastewater, only need COD treatment.

4、使用成本。三价铬钝化剂一般每平方米耗用约为50-75毫升;无铬钝化剂一般每平方米耗用约为75-100毫升,比三价铬钝化剂略高。

4. Use cost. Trivalent chromium passivators generally consume about 50-75 ml per square metre; non-chromium passivators generally consume about 75-100 ml per square metre, slightly higher than trivalent chromium passivators.

因此,三价铬钝化剂的耐腐蚀性和使用成本方面相比无铬钝化剂占有优势,最主要还是根据自己的情况而选择。未来的发展势必会是无铬钝化剂的天下,让我们为祖国的绿水青山献出自己的一份贡献。

Therefore, trivalent chromium passivator has an advantage over chromium-free passivator in terms of corrosion resistance and cost of use. The most important thing is to choose it according to its own situation. Future development is bound to be chromium-free passivator world, let us contribute to the motherland's green mountains and rivers.

本文标题:环保无铬钝化剂 原文链接地址:http://www.fangxiuoil.com/show.asp?id=97

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