Zviratidzo zvikuru zvemagetsi

Zvakajairika zvemuviri uye zvemakemikari zvivakwa

Rudzi rumwe nerumwe rwekuzora mafuta rine zvakajairika zvemuviri uye zvemakemikari zvimiro zvekuratidza hunhu hwechigadzirwa. Kune zvigadzirwa, izvi zvakajairika zvemuviri nemakemikari zvimiro zvinotevera:

 

(1) Kuwedzera

Kuwanda kwevanhu ndiyo yakapusa uye inonyanyo shandiswa yemuviri mashandiro indekisi yemagetsi. Kuwanda kwemafuta ekuzodza kunowedzera pamwe nekuwedzera kwehuwandu hwekabhoni, oksijeni, nesarufa mukuumbwa kwayo. Naizvozvo, pasi peiyo viscosity imwechete kana iyo imwechete hama mamorekuru mashoma, kuwanda kwemafuta ekuzodza ane mamwe anonhuwirira mahydrocarbon uye mamwe mazino uye asphaltenes Makurusa, ane cycloalkanes mazhinji pakati, uye diki pane mamwe alkanes.

 

(2) Chitarisiko (chromaticity)

Ruvara rwemafuta runogona kuratidza kunatsiridza uye kudzikama. Kune iwo mafuta epasi, iyo yakakwira iyo degree rekunatsiridza, iyo inoshenesa iyo hydrocarbon oxides uye sulfide zvinobviswa, uye iyo yakareruka iyo ruvara. Nekudaro, kunyangwe kana mamiriro ekuchenesa akafanana, ruvara uye kujekesa kwemafuta epasi anogadzirwa kubva kwakasiyana oiri matsime nemafuta emafuta asina kuchena anogona kunge akasiyana.

Kune matsva ekupedzisa zvigadzirwa, nekuda kwekushandisa kwekuwedzera, iyo ruvara senge indekisi yekutonga mwero wekunatsa kwemafuta epasi warasikirwa nerekutanga

 

(3) Viscosity indekisi

Viscosity indekisi inoratidza danho iro oiri viscosity inoshanduka nekupisa. Iyo yakakwira iyo viscosity index, iyo shoma iyo viscosity yemafuta inokanganiswa netembiricha, zvirinani yayo viscosity-tembiricha kuita, uye zvinopesana

 

(4) Viscosity

Viscosity inoratidza kupesana kwemukati kwemafuta, uye chiratidzo chemafuta uye kuyerera. Pasina chero chinoshanda zvinowedzera, iyo yakakura iyo viscosity, iyo inowedzera mafuta emafuta mafirimu, uye yakanyanya kuipa fluidity.

 

(5) Flash poindi

Iyo yekupenya poindi chiratidzo chekushanduka kwemafuta. Iyo yakareruka chidimbu chemafuta, inowedzera kukura kwemhepo uye yakadzika poindi yayo yekupenya. Zvakare, inorema chikamu chemafuta, kushoma kwemhute, uye kukwirisa poindi yayo. Panguva imwecheteyo, iyo flash point chiratidzo chengozi yemoto yezvigadzirwa zvepeturu. Iwo mazinga enjodzi ezvigadzirwa zvemafuta anorongedzwa zvinoenderana nechavo chekupenya. Iyo nzvimbo yekupenya iri pazasi pe45 fl sezvinhu zvinogumbuka, uye pamusoro pe45 ℃ zvigadzirwa zvinogwesha. Izvo zvakanyatsorambidzwa kupisa mafuta kune ayo mwenje poindi tembiricha panguva yekuchengetedza oiri uye kutakura. Muchiitiko cheiyo imwechete viscosity, iyo yakakwira iyo poindi poindi, zvirinani. Naizvozvo, mushandisi anofanira kusarudza zvinoenderana netembiricha uye mashandiro ezvinhu zvemafuta pakusarudza girisi. Inowanzo davirwa kuti iyo flash point iri 20 ~ 30 ℃ yakakwira kupfuura iyo tembiricha yekushandisa, uye inogona kushandiswa nerunyararo rwepfungwa.


Post nguva: Dec-25-2020