nkhani

Kodi zofunikira zapadera za maberiyali a injini ya ndege ndi ziti, ndipo momwe mungakwaniritsire kukana kutentha kwambiri ndi mafuta?

 

Choyamba, tiyeni timvetse momwe injini za ndege zimagwirira ntchito:

 

1. Liwiro lalikulu, liwiro la injini ya ndege yonse ndi loposa 18000 rpm, ndipo zofunikira pa zipangizo ndi zapamwamba kwambiri pa liwiro lalikulu chonchi.

 

2. Kutentha kwambiri, kutentha kwa injini kumakhala kwakukulu kwambiri, kutentha kwa bearing kumatha kufikanso 300 °C, zinthu zobearing ziyenera kukhala zotha kupirira kutentha kwambiri.

 

3. Kudalirika kwambiri, kaya ndi ndege ya anthu wamba kapena ndege yankhondo, zofunikira kuti munthu akhale wodalirika ndizokwera kwambiri, ndipo kusiyana pang'ono pa dziwe losambira ndi nkhani ya moyo wa munthu.

 

Chifukwa chakutentha kwakukulu kwa ntchito ya chogwiriracho, mphete yakunja imapangidwa ndi zinthu za AISI M50 zomwe zimakhala ndi kukana kutentha kwambiri komanso kukhazikika kutentha kwambiri, zomwe zimatha kufikira kulimba kwa 58HRC pa 300°C.

Mukathamanga mofulumira kwambiri, chifukwa mphete yamkati ya bearing ikuzungulira, mphamvu ya centrifugal imakhala yayikulu kwambiri, ndipo gawo lopingasa la mphete yamkati ya bearing limakhala ndi mphamvu yolumikizirana, kotero sipangakhale ming'alu yaying'ono pamwamba pa mphete yamkati kuti mupewe kufalikira kwa ming'alu pansi pa mphamvu yolumikizirana, kotero zinthu za AISI M50NiL nthawi zambiri zimagwiritsidwa ntchito ngati mphete yamkati.

 

Chifukwa cha liwiro lalikulu kwambiri, kuti achepetse katundu wowonjezera womwe umabwera chifukwa cha mphamvu ya centrifugal ya mpira wachitsulo, zinthu za ceramic zomwe zimakhala ndi kulemera kopepuka komanso kuuma kwambiri, monga silicon nitride (Si3N4) kapena titanium carbide (TiC), nthawi zambiri zimagwiritsidwa ntchito ngati zinthu za mpira wachitsulo, ndipo nthawi zina kuti ziwonjezere kukana kwa mphete zamkati ndi zakunja za bearing ndikuchepetsa kukangana, njira zamkati ndi zakunja za mphete zimapoperanso ndi zoumba.

 

Kutentha kwa injini kumatha kupitirira 300 °C, kokwera kwambiri kumatha kupitirira 1500 °C, momwe mungapiririre kutentha ndi 300 °C yokha, iyi ndiye mbiri ya makina opaka mafuta, kwenikweni, makina opaka mafuta onyamula ali ndi ntchito yayikulu yoziziritsa.

Gawo lina lake ndi mafuta odzola, mafuta odzola okhala ndi injini kwenikweni ndi ofanana ndi mafuta odzola okhala ndi mabearings ambiri, chifukwa liwiro la mabearings ndi lalikulu kwambiri, silingagwiritse ntchito kutseka kolumikizana, kotero mabearings a injini ndi njira yotsekera yodutsa, koma mafuta odzola omwe amagwiritsa ntchito ndi abwino kwambiri, chifukwa kutentha kogwirira ntchito ndi kokwera kwambiri, mafuta odzola wamba ndi osavuta kusungunuka ndikuwonongeka, kotero nthawi zambiri amagwiritsidwa ntchito mafuta opangidwa ndi MIL-PRF23699HTS.

 

Ngati mukufuna kudziwa zambiri zokhudza izi, chonde titumizireni uthenga:
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