Ubudlelwane phakathi kweMesh kunye neMicrons

Abasebenzi beshishini lomgubo bahlala besebenzisa igama elithi "ubungakanani bemesh" ukuchaza ubungakanani bamasuntswana. Ke, yintoni ubungakanani bemesh kwaye inxulumene njani neemicrons?

Ubungakanani beMesh bubhekisa kwinani lemingxuma kwisisefu, inani lemingxuma kwi-intshi nganye yesikwere. Ukuphakama kwesayizi ye-mesh, incinci isayizi yomngxuma. Ngokuqhelekileyo, ubungakanani be-mesh buphindaphindwe ngobukhulu bomngxuma (kwi-microns) ≈ 15000. Ngokomzekelo, i-sieve ye-400-mesh inobungakanani bomngxuma malunga ne-38 microns, kunye ne-500-mesh sieve inomngxuma omalunga nama-microns angama-30. Ngenxa yomba wendawo evulekileyo, ngenxa yokwahlukana kobunzima bocingo olusetyenziselwa ukuthunga umnatha, amazwe ahlukeneyo anemigangatho eyahlukeneyo. Ngoku kukho imigangatho emithathu: iMelika, iBritane, kunye neJapan, kunye nemigangatho yaseBritane neyaseMelika iyafana kunye nomgangatho waseJapan wahlukile. Umgangatho waseMelika usetyenziswa ngokubanzi, kwaye ifomula enikwe ngasentla ingasetyenziselwa ukubala.

Kuyabonakala ukuba ubungakanani be-mesh bunquma ubungakanani bomngxuma we-sieve, kwaye ubungakanani bomngxuma we-sieve bumisela ubukhulu be-particle ubukhulu be-Dmax ye-powder edlula kwi-sieve. Ngoko ke, akufanelekanga ukusebenzisa ubungakanani be-mesh ukucacisa ubungakanani be-particle ye powder. Indlela echanekileyo kukusebenzisa ubungakanani bamasuntswana (i-D10, i-diameter ye-D50, i-D90) ukumela ubungakanani bamasuntswana kunye nokusebenzisa isigama esiqhelekileyo ukuphepha nakuphi na ukungangqinelani. Kwakhona kubalulekile ukulungelelanisa rhoqo izixhobo kunye nezixhobo usebenzisa iipowders eziqhelekileyo.

Imigangatho yesizwe enxulumene nomgubo:

• I-GBT 29526-2013 isigama seTekhnoloji yePowder
• I-GBT 29527-2013 iiMpawu zoMzobo zeZixhobo zokuHlenza umgubo