Repair steps of enamel reactor

1. Dust removal, polishing, roughening, and anhydrous ethanol (99.7%) cleaning of the repaired surface;

2. Use polishing machine and electric grinder to polish the porcelain removal part to the metal primary color, and polish the surface without porcelain removal within the range of 50-100mm around;

3. After polishing, fully soak the surrounding rough enamel surface with anhydrous alcohol (99.7% content), and then dry the surface with dry cloth. After the residual anhydrous alcohol on the surface volatilizes, check whether there are dark lines on the surrounding enamel surface. If there are dark lines, continue polishing, and then check with anhydrous alcohol;

4. Observe the size of perforation. When the perforation diameter is less than 2mm and the pressure in the vessel and jacket is less than 0.3Mpa, 2211F metal repair material can be directly applied. Otherwise, repair welding is required. During repair welding, the temperature of the base material shall be controlled as high as possible. After repair welding, it shall be placed naturally to fully release the thermal stress;

5. Apply the mixed 2211F metal repair material to the treated metal surface. The first layer shall be thin and firm to ensure that the material penetrates into every gap of the substrate; Then increase the thickness of the material layer by layer until it is flush with the uncorroded part, and minimize the presence of bubbles in the material. 6. Wait for curing (initial curing time at 24 ℃ shall not be less than 5 hours);

7. The material can be naturally solidified or heated to a hard surface, and then the bright layer on the surface of the material can be removed with 60-mesh sandpaper to completely remove the residual material fragments and dust on the surface;

8. Select Forsyland anti-corrosion series polymer composite material EE-101; Mix the surface anti-corrosion materials in proportion, apply the mixed materials on the 2211F metal repair material and the surrounding rough enamel surface, and ensure that it is completely covered without any pores, and ensure that the materials do not exceed the range of rough enamel surface;

9. Wait for curing after repair (in order to achieve the effect of chemical corrosion resistance, the curing time at 24 ℃ shall not be less than 36 hours). It is recommended to use 121 ℃/2h forced curing method to fully achieve the chemical properties of the material.

These are the repair steps of enamel reactor.