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Porosity sealing, also known as vacuum impregnating, metal impregnating, polymer impregnating, and porous metal sealing, is the process of filling a porous substrate to make it airtight. ==Process== Porosity sealing is a four-step process: #Air within the pores is expanded under reduced pressure (vacuum). #Pressure reversal (adding pressure outside the part) saturates pores with monomer. #Excess monomer is rinsed from the exterior surfaces of the part. #The liquid monomer within the porosity is polymerized into a solid to seal the passage. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Porosity sealing」の詳細全文を読む スポンサード リンク
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