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發(fā)布時(shí)間: 2015-4-28 09:37
正文摘要:目數(shù),就是孔數(shù),就是每平方英寸上的孔數(shù)目。目數(shù)越大,孔徑越小。一般來(lái)說(shuō),目數(shù)×孔徑(微米數(shù))=15000。比如,400目的篩網(wǎng)的孔徑為38微米左右;500目的篩網(wǎng)的孔徑是30微米左右。由于存在開(kāi)孔率的問(wèn)題,也就是因 ... |
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