不锈钢屏风使用阴阳极除油的优缺点, 查看次数 1646 次
Stainless steel screen in the removal of surface oil technology has many kinds, good or bad, which are based on the material and the screen. What kind of material on the screen to choose what kind of way of removing oil. Here we talk about the oil removal performance of cathode and anode:
Cathode in addition to the advantages of oil are: precipitation hydrogen bubble and small, strong emulsification, so in addition to the high speed of oil; near the cathode solution pH value increased favorable for oil removal, to remove the oxide, the passivation of stainless steel decorative screen surface activation; no corrosion of stainless steel decorative screen matrix. Disadvantages: easy to cause the stainless steel decorative screen hydrogen permeation, leading to hydrogen embrittlement and bubbling, for high strength steel and alloy steel is not applicable; impurities in the solution may in stainless steel decorative screen surface precipitation (hanging ash), oil and other pollutants may re deposited onto stainless steel decorative screen, you need to keep in addition to oil relatively clean, make less pollution.
The advantages of anode oil removal: there is no clear and hanging ash. Disadvantages are: in addition to the oil slowly. This is because half of the oxygen evolution only hydrogen amount in the same current density; near the anode solution pH value decreased except for adverse oil; oxygen evolution can make some metal oxide, and even oil film oxidation and difficult to remove. Some metal corrosion.
In addition to the anode electrolytic degreasing operation oil is often used as the standard, because the anodic reaction can remove the stainless steel decorative screen granular dirt. At the same time the oxygen produced in the stainless steel decorative screen, like alloy with high nickel content, very easy to form oxide. In these cases, you must be very careful in the choice of electrolytic degreasing after acid activation process. The use of change to the current cycle, on many substrates are very useful. The use of the anode current or change to the current cycle, can reduce the high hydrogen embrittlement force alloy. Between the cathode and the anode in the cycle of transformation, on the removal of dirt and oxide can achieve very good activation effect. At this time, stainless steel decorative screens from the electrolytic degreasing bath bath, preferably in the anode phase of stainless steel decorative screen.