Hukama pakati peMesh neMicrons

Vashandi veindasitiri yehupfu vanowanzo shandisa izwi rekuti "mesh size" kutsanangura saizi yechidimbu. Saka, chii chinonzi mesh size uye ine hukama sei nemamicrons?

Mesh size inoreva huwandu hwemakomba ari musefa, inova nhamba yemakomba pa square inch. Iyo yakakwirira mesh size, iyo idiki iyo gomba saizi. Kazhinji, mesh saizi yakapetwa nehukuru hwegomba (mu microns) ≈ 15000. Semuenzaniso, 400-mesh sieve ine gomba hukuru hunosvika 38 microns, uye 500-mesh sieve ine gomba ukuru anenge 30 microns. Nekuda kwenyaya yenzvimbo yakavhurika, iyo inokonzerwa nekusiyana kwekukora kwewaya inoshandiswa pakuruka mambure, nyika dzakasiyana dzine maitiro akasiyana. Parizvino pane zviyero zvitatu: American, British, and Japanese, neBritish neAmerica zviyero zvakafanana uye mwero weJapan uchisiyana. Chiyero cheAmerica chinowanzo shandiswa, uye fomula yakapihwa pamusoro inogona kushandiswa kuiverenga.

Zvinogona kuonekwa kuti ukuru hwemesh hunotarisa ukuru hwegomba resefa, uye ukuru hwegomba resefa rinotarisa huwandu hwehuwandu hwehuwandu hweDmax yehupfu inopfuura nepakati. Naizvozvo, hazvina kufanira kushandisa mesh saizi kuona saizi yehupfu. Nzira chaiyo ndeye kushandisa saizi yechidimbu (D10, dhayamita yepakati D50, D90) kumiririra saizi yechikamu uye kushandisa chiyero chemazwi kudzivirira chero mutsauko. Izvo zvakakoshawo kugara uchigadzirisa midziyo uye zviridzwa uchishandisa yakajairwa hupfu.

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