The carbon steel pot is assembled and welded by 40-50mm steel plates.
During galvanizing process, the metal sidewall unavoidably touches the molten zinc, then lead to zinc iron reaction in the high temperature working condition, which causes the metal pot serious corrosion
However the ceramic zinc pot adopts the non-metal material to manufacture and avoid the zinc iron reaction and reach the aim to reduce the zinc consumption. Also successfully overcome the molten zinc’s corrosion for pot sidewall. The ceramic pot adopt the inductor as the heating resource and it is easy to maintenance and the replacement cycle is long and simple.
I. Advantages of Induction Ceramic Zinc Pot:
Compared with the iron zinc coating pot, the induction ceramic zinc pot has following advantages:
1. Reducing the unit consumption and slag rate of zinc. During hot dipping galvanizing, Iron and zinc contacts to generate the iron and zinc alloy is unavoidable. The Iron and zinc alloy – zinc slag, which are suspending in the galvanizing liquid or sinking on the bottom of pot, gradually become bottom dross. It will increase the zinc consumption and influence the quality of galvanized pieces. The quantity of generated Iron and zinc alloy is related to such factors as contact area of iron and zinc, galvanizing temperature, dip coating time, etc. Adopting electric induction pot avoids large area and long time contacts between zinc and iron because the lining of pot is refractory material, thus the zinc slag shall be greatly reduced. In the other hand, the induction furnace heating the zinc liquid directly, thus the heat transfer quickly and the efficiency is high, and the local overheating can be avoid. According to the domestic production status of many manufactures who use induction ceramic zinc pot, the zinc slag is greatly reduced, and generally without zinc slag. The statistical data shows, the induction ceramic zinc pot shall generate approx. 2kgs zinc slag for producing 1 ton steel plate, while that for steel pot is above 4kgs.
2. The temperature of zinc pot is easy to control. For hot-dip galvanizing, the temperature of zinc liquid shall directly influence the quality of product, zinc consumption, slag rate, service life of pot, etc. thus it is a critical control requirement. Adopting the ceramic induction zinc pot shall realize temperature control to be uniform and stable through adjusting input power as needed.
3. Benefit for the improvement of product quality. The iron content of zinc liquid in ceramic induction pot is less, thus the quality of coating surface is better. Furthermore, the temperature can be controlled, which makes the zinc liquid viscosity and the FeZn alloy thickness meet the requirements of less zinc consumption, better corrosion resistance and good flexibleness.
4. Long service life and convenient maintenance. The service life of zinc pot lining is more than 20 years, and inductor lining is generally 3~5 years, that is to say, the inductor shall be replaced at least every 3 years. The inductor is detachable, and can be hot butt join, thus the time required for replacing is greatly less than the steel pot, and the maintenance is quite convenient.
5. Low operating cost. Saves the fees for at least two steel pots per year, and reduce the loss caused by replacement of steel pot. Each time of inductor replacement just need RMB 20~30 thousands Yuan.
6. Improving the working conditions for operation personnel and reducing environment pollution.
So the metal pot is dome to be replaced by the ceramic pot in the coming days obviously. Because it has the charactistc of energy-saving , environment protection, most importantly enhancing the finished products quality extremely.
We have already revamped many overseas and domestically project and warmly welcome you and your team’s inquiry for more information.