Huremu hwegiramu yejira risina guruva rakatsetseka chiratidzo chakakosha chekuyera kunaka kwaro uye mashandiro aro, uye kuverenga kwaro kunosanganisira zvinhu zvakawanda zvinobatanidzwa.
Chekutanga, tsananguro yehuremu hwegiramu inoreva huremu hwejira risina guruva pa square meter, uye unit inowanzova magiramu/square meter (g/m²). Pakuverenga huremu hwegiramu yejira risina guruva rakatsetseka, zvakakosha kusarudza mienzaniso yejira risina guruva. Kazhinji, sampuli dzakawanda dzinotorwa kubva muboka rimwe chete nenzvimbo dzakasiyana kuti zvive nechokwadi chekuti mhedzisiro yekuyera yakarurama uye yakavimbika. Mushure mekunge sampuli dzatorwa, sampuli dzinoyerwa uchishandisa chiyero chakanyatsojeka. Kururama kwechiyero kunofanirwa kukwanisa kuyera musiyano mudiki wehuremu. Kururama kwakajairika i0.01 gramu kana kupfuura.
Kuyera saizi yemuenzaniso zvakare idanho guru. Shandisa maturusi ekuyera chaiwo, akadai sematare esimbi, macaliper, nezvimwewo, kuti uedze nemazvo kureba nehupamhi hwemuenzaniso wejira risina guruva. Munguva yekuyera, nyatsoteerera nzvimbo nenzira yekuyera kuti udzivise mhedzisiro isiriyo nekuda kwezvikanganiso zvekuyera. Kuti uwedzere kuvandudza kururama kwekuyera, kureba nehupamhi hwemuenzaniso zvinowanzo kuyerwa kakawanda, uye ipapo avhareji yemutengo inotorwa semhedzisiro yekuyera kwekupedzisira. Zvichienderana nehurefu nehupamhi hwakayerwa, nzvimbo yemuenzaniso inoverengerwa.
Mushure mekuwana huremu nenzvimbo yemuenzaniso, huremu hwegiramu hunogona kuwanikwa kuburikidza nekuverenga kwemasvomhu kuri nyore. Fomura yekuverenga ndeiyi: huremu hwegiramu = huremu hwemuenzaniso (magiramu) ÷ nzvimbo yemuenzaniso (mamita akaenzana). Semuenzaniso, kana muenzaniso uchirema magiramu mashanu uye uine nzvimbo ye 0.01 square metres, saka huremu hwegiramu hwemuenzaniso i5÷0.01 = magiramu mazana mashanu pamita yakaenzana.
Mukugadzirwa chaiko, kuitira kuti jira risina guruva rirambe rakatsetseka, vagadziri vanotora matanho ekudzora akasimba. Kutanga kubva pakusarudza zvinhu zvakagadziriswa, mhando uye zvirevo zvezvinhu zvakagadziriswa zvakaita sepolyester fiber nenylon fiber zvinodzorwa zvakasimba, nekuti zvinhu zvakagadziriswa zvakasiyana-siyana zvinokanganisa huremu hwegiramu yechigadzirwa chekupedzisira. Mukugadzirwa, zvinhu zvakaita sehukobvu hwekuisa, kumanikidzwa kwespunlace, uye tembiricha yekuomesa yefiber zvinodzorwa nemazvo. Zvinhu izvi zvinokanganisa huremu hwegiramu yejira risina guruva zvakananga kana zvisina kunanga. Panguva imwe chete, kutarisa panguva chaiyo kuchaitwa panguva yekugadzira, uye sampuli dzichatorwa nguva dzose kuti dziongororwe huremu hwegiramu. Kana kutsauka kwehuremu hwegiramu kwaonekwa kuti kwapfuura huwandu hunobvumidzwa, zvinhu zvekugadzira zvichagadziriswa nekukasika kuti zvive nechokwadi chekuti mhando yechigadzirwa yakagadzikana.
Pamusoro pezvo, zvinodiwa nemagiramu ehuremu hwemachira asina guruva rakatsetseka zvakanyanya ezvinangwa zvakasiyana zvakasiyanawo. Semuenzaniso, machira asina guruva anoshandiswa kupukuta zvikamu zvemagetsi zvakanyatsonaka anowanzoda huremu hwakaderera, kazhinji pakati pe30-60 g/m2. Machira akadaro asina guruva akatetepa, akapfava uye akaomarara, uye haakuvadzi zvikamu zvakanyatsonaka; nepo machira asina guruva anoshandiswa kuchenesa nzvimbo huru nekunyudza mafuta anogona kunge aine huremu hwakakura, hunosvika 80-120 g/m2, kuve nechokwadi chekuti ane kugona kwakakwana kwekunyudza uye kuramba kupfeka.
Kuverenga huremu hwemachira asina guruva rakatsetseka kunoda kuyerwa kwakasimba uye kuverenga. Panguva imwe chete, kudzora kwakasimba panguva yekugadzira uye kusarudza kwakakodzera zvichienderana nemamiriro akasiyana ekushandisa zvinhu zvakakosha kuti uve nechokwadi chekuti chigadzirwa chine mhando uye mashandiro azvo.
Nguva yekutumira: Chikumi-25-2025