Dangantaka Tsakanin raga da Microns

Ma'aikatan masana'antar foda sukan yi amfani da kalmar "girman raga" don kwatanta girman barbashi. Don haka, menene girman raga kuma ta yaya yake da alaƙa da microns?

Girman raga yana nufin adadin ramuka a cikin sieve, wanda shine adadin ramukan kowane inci murabba'i. Mafi girman girman raga, ƙarami girman ramin. Gabaɗaya, girman raga yana ninka da girman rami (a cikin microns) ≈ 15000. Misali, sieve mai lamba 400 yana da girman rami mai kusan 38 microns, kuma 500-mesh sieve yana da girman rami na kusan 30 microns. Dangane da batun budadden wuri, wanda ya faru ne sakamakon bambancin kaurin waya da ake amfani da shi wajen sakar gidan yanar gizo, kasashe daban-daban suna da ma'auni daban-daban. A halin yanzu akwai ma'auni guda uku: Amurka, Burtaniya, da Jafananci, tare da ma'aunin Biritaniya da Amurka suna kama da ma'aunin Jafananci. Ana amfani da ma'aunin Amurka gabaɗaya, kuma ana iya amfani da dabarar da aka bayar a sama don ƙididdige shi.

Ana iya ganin girman raga yana ƙayyade girman ramin ramin, kuma girman ramin ramin yana ƙayyade matsakaicin girman Dmax na foda da ke wucewa ta sieve. Saboda haka, bai dace a yi amfani da girman raga don sanin girman barbashi na foda ba. Hanyar da ta dace ita ce a yi amfani da girman barbashi (D10, diamita na tsakiya D50, D90) don wakiltar girman barbashi da kuma amfani da daidaitattun kalmomi don guje wa kowane saɓani. Hakanan yana da mahimmanci don daidaita kayan aiki da kayan aiki akai-akai ta amfani da daidaitattun foda.

Matsayin ƙasa masu alaƙa da foda:

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