铝合金磺基水杨酸室温硬质阳极氧化法和低温硬质阳极氧化法相比较,具有工作温度较高,不需要专门冷冻设备、冷冻剂,能节约看管冷冻设备和维修专职人员,节约材料、电力消耗等优点。但是美中不足的是,配制槽液的化学药品贵,货源较缺,而且对于含铜量大于3.8%以上的硬铝,氧化温度仍不能超过15℃,超过该温度时,还要用冰块冷却。根据以上存在的问题,我们考虑应该继续研究探讨各种铝合金(包括硬铝、锻铝、铸铝等材料)均能在5～30℃左右获得硬度在Hv250～300,厚度在30微米以上,颜色均匀,结晶组织密实平滑的优质膜层。经过一年多的试验摸索,现已研究成功磺蒽1~#和磺蒽2~#两种电解液,这两种电解液的特点是成本低,初步估计大约只有低温硬 Aluminum sulfosalicylate at room temperature hard anodizing method and low temperature hard anodizing method compared with a higher working temperature, does not require specialized refrigeration equipment, refrigerants, can save the custody of refrigeration equipment and maintenance of full-time staff, saving materials, Power consumption and other advantages. But the fly in the ointment is that the preparation of chemical tank solution expensive, the lack of supply, and for more than 3.8% of the copper content of aluminum, the oxidation temperature can not exceed 15 ℃, beyond this temperature, but also with ice cooling. Based on the above problems, we consider that we should continue to study the various aluminum alloys (including duralumin, wrought aluminum, cast aluminum and other materials) can be obtained at about 5 ~ 30 ℃ hardness Hv250 ~ 300, the thickness of 30 microns or more, Color uniform, dense and smooth crystalline texture of high-quality film. After more than a year of trial and error, we have studied the success of sulfonated anthracene 1 ~ # and anthracene 2 ~ # two electrolytes, these two electrolytes are characterized by low cost, initially estimated that only low temperature hard