The soluble treatment technology of magnesium forgings in construction machinery mainly includes two methods: pickling and alkali washing. These treatments can remove oxides and impurities from the surface of magnesium forgings, thereby improving their surface quality and anti-corrosion properties. These two soluble treatment techniques and their effects are described in detail below.
- Pickling treatment technology:
Pickling is the use of acid solution (such as hydrochloric acid, nitric acid, etc.) to treat magnesium forgings of construction machinery. The treatment steps usually include cleaning, pickling and neutralization. The specific steps are as follows:
a. Cleaning: Use alkaline solution or water to clean the surface of magnesium forgings to remove oil and dust on the surface.
b. Pickling: The magnesium forgings are soaked in an acidic solution, so that the acid reacts with the oxide on the surface of the magnesium forgings, and then the purpose of removing oxides and impurities is achieved.
c. Neutralization: Neutralize the acid-washed magnesium forgings to ensure that the acidic components on the surface are neutralized to avoid adverse effects on subsequent treatment and use.
Pickling treatment can effectively remove oxides and impurities on the surface of magnesium forgings, making the surface clean and smooth. At the same time, pickling can also improve the corrosion resistance of magnesium forgings, improve its corrosion resistance and extend its service life.
- Alkaline washing technology:
Alkali washing is a method of treating magnesium forgings of construction machinery by using alkaline solution (such as sodium hydroxide solution). The treatment steps usually include cleaning, alkali washing and neutralization. The specific steps are as follows:
a. Cleaning: Use alkaline solution or water to clean the surface of magnesium forgings to remove oil and dust on the surface.
b. Alkali washing: the magnesium forgings are soaked in an alkaline solution, and the alkalinity of the alkaline solution is used to corrod and dissolve the oxides and impurities on the surface of the magnesium forgings.
c. Neutralization: The magnesium forgings after alkali washing are neutralized to ensure that the alkaline components on the surface are neutralized to avoid adverse effects on subsequent treatment and use.
Alkali washing treatment can effectively remove oxides and impurities on the surface of magnesium forgings, making its surface cleaner. In addition, alkali washing can also improve the surface wettability of magnesium forgings, improve its adhesion with coatings or coatings, and enhance the corrosion resistance of magnesium forgings.
In general, the effect of soluble treatment technology on construction machinery magnesium forgings is mainly reflected in the improvement of surface quality and anti-corrosion performance. By removing surface oxides and impurities, these treatments can make the surface of magnesium forgings cleaner and smoother, and improve its corrosion resistance, thereby extending its service life. However, attention should be paid to controlling parameters such as processing time, concentration and temperature during soluble treatment to avoid adverse effects on magnesium forgings.
