In the design drawings of a certain project, if the total mass of metal is known, how to calculate the primer and topcoat.
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In the design drawings of a certain project, if the total mass of metal is known, how to calculate the quantity and weight of primer and topcoat? Thank you! I am a novice in designing, please give me some advice.
These are all estimated surface areas! ! ! Everyone's paint thickness is different. To estimate the surface area, use the thickness of the paint film to calculate the weight. Who can be so accurate about this?
There are also sets of estimates that need to be estimated.
Depending on the industry and project characteristics, there are generally empirical estimates of coefficients. You can ask the estimator.
This is calculated by the designers themselves, and I don’t know if the designers have to ask the budget staff. According to my understanding, the total mass of all metals is converted into area, and then the amount of paint required is calculated from the area. As we know from the picture above: The total mass is: 246KG, which is converted into an area of 7.83 square meters. This is the area for one coat. Two coats are 15 square meters. The paint required for 1 square meter is 0.3~0.6KG. The final paint weight is: 3KG~9KG.
The amount of primer and topcoat is determined by the surface area of the equipment and the thickness of the paint film, and has nothing to do with the weight of the equipment. Determine the paint film thickness according to the anti-corrosion grade requirements and the environment where the equipment is located
Mass m=ρV, volume V=St, S is area, t is thickness, these should have been learned in school.
Designers have many project experiences and already have experience coefficients in the database.
It is related to the surface area of the equipment and the total thickness of the paint film, plus a certain margin, and has nothing to do with the weight of the equipment.