I would like to ask everyone questions regarding the insulation protective layer for equipment pipes
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Our company has launched a new caustic soda production project in the northern region. For the insulation scheme I have chosen, the insulating material to be used is rock wool; no moisture-proof layer is required. However, I’m not sure what to use for the protective layer. I’m not sure how to choose between galvanized iron sheet, aluminum sheet, aluminum-coated iron sheet, and aluminum alloy sheet. I am quite familiar with galvanized iron sheet, which is widely used in the north, but I’m not as familiar with aluminum sheet, galvanized aluminum sheet, and aluminum alloy panels. I have two questions now: 1. Is the aluminum sheet pure aluminum? Or is it the same concept as galvanized aluminum sheets and aluminum alloy sheets? 2. If these three are not the same concept, then they each have their own characteristics; what are their advantages and disadvantages compared to galvanized iron sheet? I appreciate your advice.
1. Aluminum-zinc coated sheet can be used (the aluminum content in the aluminum-zinc coating is 55%, the zinc content is 16–18%, and the substrate is steel)； 2. The aluminum sheet is not pure aluminum; it is an aluminum alloy. You can refer to GBT 3880.1-2006 Aluminum and Aluminum Alloy Sheets and Strips for General Industrial Use – Part 1: General Requirements; we usually use 3003H24 aluminum sheet. Its elongation rate is slightly higher than that of 3003H14. 3. Galvanized aluminum sheet is very rare.
This post was last edited by yuchenchf on 2013-4-8 07:47. It is recommended to use a corrosion-resistant photopolymer composite insulation coating for the shell – it is 100% dense, resistant to impacts and aging, and fire-retardant
I learned that there are so many different types of aluminum-coated sheets available. But personally, I think aluminum-plated iron sheets are better
What does photopolymerization mean? Is the construction complex?
This post was last edited by yuchenchf on 2013-6-24 07:39. UV-cured composite materials are a type of prepreg that is easy to apply; feel free to contact me if you’re interested