Iyo yekubikira poindi yeantifreeze. Enzanisa neantifreeze

Zvishoma zvefizikisi

Hazvina kunaka kutaura pamusoro pekubikira kweiyo antifreeze mune chaiyo yeantifreeze, nekuti, chekutanga, antifreeze ine imwe kemikari inoumbwa, uye iyo thermophysical maitiro anotemerwa kwete nekupisa chete, asiwo nekumanikidza. Chechipiri, antifreeze, iyo pane imwe nguva yakasikwa chete yeinjini dzinogadzirwa mudzimba, ine zvekuwedzera izvo zvinovimbisa kwete chete kushanda kwemotokari pakudziya kwakadzika, asiwo kuchengetedzwa kwayo kubva kune akati wandei zvinhu zvakaipa:

• ngura;
• huwandu;
• cavitation.

Antifreeze, kusiyana neantifreezes, haina mafuta ekuzora, uye kuderedzwa kwekupfeka kunowanikwa nekuda kwekuderera kwekushisa kwezvinhu zvinofamba zvedhiraivha, nekuwedzera kweiyo mapundu anosarudzwa, uye friction coefficient inowedzera.

Kana zvese zviri nani kana kushoma kujekesa tembiricha inobvumidzwa (kwete kupfuura 90^ºC), ipapo mamiriro acho nekumanikidza mujini yakanyanya kuoma. Kuti udzivirire injini kubva pakupisa, antifreeze inoputirwa pamakwikwi akakwirira, ayo anokanganisawo kupisa kwemvura. Kune akawanda mabhuraki, iyo chaiyo yekumanikidza muhumburumbira block inosvika 1,2 ... 1,3 atm: zvino, maererano nemutemo weClausius, iyo tembiricha yepamusoro inodiwa pakubikira kwemvura media inowedzera. Saka, iyo inotenderwa kubikira poindi yezvinotonhorera inogona kuita 110…112^ºC.

Chii chinonzi boiling point ye antifreeze?

Kupisa zvakanyanya mumainjini enhau dzinotonhora dzinotonhora dzakadai saFelix A40, Motul, Alaska nevamwe kunosanganiswa nehuwandu husina kukwana hweantifreeze, kusashanda zvakanaka kweinjini yekufemesa mhepo, kutaridzika kwekuvhara kwemhepo, kusashanda kweiyo inotonhorera, kana kushandiswa kwefiriji yemhando yakaderera (yakaderedzwa, yakashandiswa, nezvimwewo). Kutaura pamusoro pekubikira kweiyo antifreeze kunogoneka chete kune avo varidzi vemotokari vanobvumira kuwanda kwakanyanya kwekutonhora kunotonhorera uye kuwanda kwayo vhoriyamu muinotonhora system. Chimwe chinhu kushandiswa kwezvinwiwa zveantifreeze-sezvinwiwa panzvimbo yeantifreeze (inotengwa pamisika yemotokari inokahadzika). Idzo dzinogona kufashaira chaizvo, uye kunyangwe patembiricha ye90^ºC.

Thermophysical properties ye antifreezes yekugadzirwa kwepamba

Mune injini dzakagadzirwa neRussia, zvinokurudzirwa kushandisa antifreezes ePhoenix, Sintec uye mamwe mabhureki. Mamiriro ekuita kwavo ndeaya anotevera:

1. Ye antifreeze A40M: -40… + 108^ºC.
2. Ye antifreeze A65M: -65… + 108^ºC.
3. Ye antifreeze A60M: -60… + 105^ºC.
4. Ye antifreeze TL-30 Premium: -30…+108^ºC.

Pane tembiricha mujinjini yakakwira kupfuura iyo yakaratidzwa, antifreeze inovira.

Iyo coefficient yevolumetric yekuwedzera yeantifreeze iri mukati me1,09 ... 1,12. Zvimwe zviratidzo zvinotsanangurwa nezvinodiwa zvehunyanzvi zveGOST 28084-89.

Iyo inobvira yekubikira poindi yeantifreeze inofungidzirwawo nekumanikidza kukosha:

• PaP = 1 paT_bale = 105^ºC;
• PaP = 1,1 paT_bale = 109^ºC;
• PaP = 1,3 paT_bale = 112^ºC.

Mugadziri mukuru we antifreezes munyika ndiye PKF "MIG uye Co" (Dzerzhinsk, Nizhny Novgorod nharaunda).

Rekodha nzvimbo yekubikira yeantifreeze (antifreeze)