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铝合金硫酸阳极化所使用的槽液是20％的硫酸,在进行阳极化时必须控制一定的槽液温度。因此,必须在槽体内增加管道设备,作为必要时的加温或冷却用。以往为了冷却硬质阳极化槽液(30％H_2SO_4)都是用铅锑合金管,但常遭到夹杂性腐蚀或破裂,使生产停止而修理管道,因此,在普通阳极化生产槽液中,再不能选用这种材料。 根据资料介绍,钛合金材料用在表面处理车间的耐腐蚀设备、制造夹具、吊蓝等,也用在硫酸阳极化方面的设备、夹具。但一般资料介绍钛及其合金不耐这种浓度(20～30％)的硫酸,也有资料提到:在这种浓度的硫酸中当有铜、铁等杂质离子时,钛及其合金就变得耐蚀了,我们的试验就是找这种耐蚀性条件,探讨理论根据,用于生产实际中去。
Aluminum alloy sulfuric acid anodizing bath used is 20% sulfuric acid, anodizing must be controlled when a certain bath temperature. Therefore, pipework must be added to the tank body for warming or cooling if necessary. In the past in order to cool the hard anodizing bath (30% H_2SO_4) are made of lead-antimony alloy pipe, but often suffered from corrosion or rupture of inclusions to stop the production and repair pipelines, therefore, in ordinary anodizing bath, No longer use this material. According to the information, titanium alloy materials used in the surface treatment plant corrosion-resistant equipment, manufacturing fixture, hanging blue, etc., also used in sulfuric acid anodizing equipment, fixtures. However, the general introduction of titanium and its alloys intolerant of this concentration (20 ~ 30%) of sulfuric acid, there are also data that: in this concentration of sulfuric acid when there is copper, iron and other impurity ions, titanium and its alloys become Corrosion resistance, our test is to find this corrosion resistance conditions, to explore the theoretical basis for the production to go.