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首页> 外文期刊>Surface Coatings International, Part B. Coatings Transactions: The Science and Technology of Paints, Inks and Related Coatings and their Raw Materials >Computer modelling of steady-state moisture diffusion through wood/aluminium windows with different coatings
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Computer modelling of steady-state moisture diffusion through wood/aluminium windows with different coatings

机译：稳态水分通过不同涂层的木/铝窗扩散的计算机模型

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摘要

Steady-state moisture diffusion through wood/aluminium windows was simulated by using computer software utilising the finite-element-method.The water-vapour permeability of the coating was varied on different model-windows.The results showed that wood coatings can help to reduce the differences in equilibrium wood moisture between the exterior and interior sides of the wooden profiles when interior humidity stress occurs.Coatings with low permeability can promote the accumulation of moisture on the exterior side.The same,or even a better quality of protection against interior humidity stress,as with high-built coatings,can be obtained by medium-built coatings with higher permeability.An optimal moisture balance in the wooden profiles was achieved by using a low permeable coating on the interior side and a more permeable coating on the exterior side.
机译：利用有限元法利用计算机软件模拟了稳态水分在木/铝窗中的扩散情况，并在不同的模型窗上改变了涂层的水蒸气透过率，结果表明木器涂料可以帮助减少当出现内部湿度应力时，木质型材的内外表面之间平衡的木材水分之间的差异。低渗透性的涂料可以促进水分在外表面上的积累。相同或什至更好的室内湿度防护质量可以通过具有较高渗透性的中层涂料来获得应力，如使用高涂层涂料。通过在内侧使用低渗透性涂层并在外侧使用高渗透性涂层，可以使木制型材达到最佳的水分平衡。

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