Problems with custom glass-lined reactors
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I want to create an enamel-lined tank with a capacity of around 2000L and a wall thickness of 18 mm. After consulting manufacturers, I was informed of the following: 1. The steel material should be purchased in accordance with national standards as 18 mm thick, but its thickness will decrease by 1–1.5 mm after grinding and enamel coating. 2. The thickness of the glaze is 1–1.3; after firing and glazing, the total thickness becomes 18–18.5. It seems to me that this master batch does not meet national standards – is the thickness reduction achieved through grinding and firing too significant? I’m not very familiar with this. Could the experts on the forum give me some guidance? Thank you. . . .
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When it comes to grinding and firing, the maximum value should be taken into account; in reality, there isn’t that much. The data is from the past; nowadays, most are fired using electric furnaces, with strict temperature control, which reduces variables in the firing process. Additionally, the 2000L reactor does not need to be polished. After pre-baking, the glass-lined surface must be sandblasted. The total thickness of the ceramic glaze fired in an electric furnace is generally kept below 1.2 mm. Being too thick is not good; it tends to cause chipping and has poor heat transfer properties. We are a specialized factory in enamel technology: Contact number: 15153339763, Engineer Yang
Does that mean that in reality, a thickness of 1-1.5 cannot be removed through polishing? It’s mainly because the glaze layer is too thin!
The actual amount of thinning due to polishing and firing is much smaller; the thickness of the glaze should not be set at its maximum value either. In practice, the thinning resulting from polishing and firing is around 0.5 mm, while the thickness of the glaze is around 1.2 mm.