I want to know about the acidification of silicon cores. Does anyone know?
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The first is which equipment for acidification is better, the second is the concentration control of the acidification liquid, and the third is the recycling of waste liquid. Thank you.
1. Pickling equipment, many domestic manufacturers use Beijing Qixing Huachuang, but the price is too high, and it is imported from Japan, but the use is not very ideal. 2. The pickling concentration of hydrofluoric acid and nitric acid is generally 1: 4 3. The waste liquid is basically not recycled, and is directly neutralized with sodium hydroxide flakes. However, if you are pursuing quality, you should use manual pickling, which is better for the surface cleanliness of the silicon core.
Thank you, I am very satisfied with your answer.
There are now several pickling lines in China and several abroad. They are all fully automatic and the acid concentration is automatically adjusted.