Kodi kutentha kochepa ndi chiyani, chidziwitso choyambirira ndi chiyani?

Amatsogolera kutsogolo kwa makina, makina kanema, galimoto, processing luso, 3D yosindikiza, zokha, loboti, ndondomeko kupanga, kubala, nkhungu, makina chida, pepala zitsulo ndi mafakitale ena.

GAWO.1

Kutentha kwapansi sizitsulo zomwe zimayenda mokhazikika m'malo otentha kwambiri omwe amafanana ndi kutentha kwakukulu, koma amatanthawuza mapangidwe a zipangizo zapadera ndi mapangidwe kuti achepetse kugundana kwachitsulo, kuti achepetse kutentha kwamoto, kuti zitsulo zikhalebe kutentha. mu ntchito kwa nthawi yaitali.

GAWO.2

Ma bearings omwe kutentha kwake kuli kochepera -60 ℃ ndi mayendedwe otsika kutentha.Amagwiritsidwa ntchito kwambiri mumitundu yonse ya pampu yamadzimadzi, monga pampu yamafuta achilengedwe, nayitrogeni yamadzimadzi (hydrogen, oxygen) mpope, pampu ya butane, mpope wamadzimadzi a rocket, spacecraft ndi zina zotero.
Kukhala ndi kutentha kwa ntchito ndi chizindikiro chofunikira kwambiri padziko lonse lapansi

Kutentha kwa ntchito kwa mayendedwe otsika kutentha kumawonetsa ukadaulo wazinthu komanso mulingo wa processing wa kubala processing.Kuyeza kwake kumatengera kusiyana kwa kutentha pakati pa mphete yakunja yonyamula ndi mafuta oziziritsa jekeseni panthawi yogwira ntchito.

Kutentha kwapang'onopang'ono kumatanthauza moyo wautali wautumiki komanso magwiridwe antchito apamwamba.Opanga zonyamula zodziwika bwino padziko lonse lapansi, kudalira zabwino zawo, amayesetsa kupeza zabwino zofananira za mayendedwe otsika kutentha m'magawo ambiri.Tengani Timken self-alting roller bearings monga chitsanzo.Pambuyo poyesa mwamphamvu, kutentha kwamakampani pazinthu zotere kumakhala kotsika poyerekeza ndi zomwe zili pamsika, pafupifupi madigiri 15.5 Celsius, pomwe mitundu ina yotchuka padziko lonse lapansi imakhala yopitilira 19 digiri Celsius.
Kwa chodabwitsa cha kubereka kumamatira kutentha pang'ono, chinthu chakunja ndikusintha kwa kutentha, ndipo chinthu chamkati ndi chosiyana chowonjezera chamafuta a shaft, chimango ndi zinthu.Kutentha kukakhala kwakukulu, kutsika kwa zinthu zosiyanasiyana kumakhala kosiyana, zomwe zimapangitsa kuti kusiyana kumakhala kochepa komanso kumamatira.Choncho, pazida zambiri, kuphatikizapo zipangizo zomwe zimagwiritsidwa ntchito kutentha pang'ono, m'pofunika kuwerengera kuchuluka kwazinthu zowonjezera, pamene mukuyesera kugwiritsa ntchito zipangizo zomwe zili ndi coefficient yofanana yowonjezera, zotsatira zake zidzakhala bwino.

Kuonjezera apo, pakupanga mapangidwe, yesetsani kupewa kugwiritsa ntchito mawonekedwe a tapered wodzigudubuza kumapeto onse a shaft.Ndi kamangidwe kameneka, mtunda wautali pakati pa ma bere awiri, m'pamenenso umakhala wokhazikika.Ngati nsonga imodzi ya shaft imayikidwa ndi mayendedwe a conical, kuyenda kwa axial kwa shaft kumakakamizika ngati malo a shaft, ndipo mapeto ena a shaft amagwiritsidwa ntchito ndi kugudubuza kuti achepetse mphamvu ya radial yokha.Mu njira ya axial, kayendetsedwe ka axial kakhoza kusuntha mkati mwamtundu wina ndi kutentha kwa axial.

mayendedwe otsika kutentha amagwiritsidwa ntchito zosapanga dzimbiri zitsulo kubala zitsulo 9Cr18, 9Cr18Mo kupanga, komanso akhoza kusankha beryllium mkuwa, ceramic ndi zipangizo kupanga;Kutentha kwapang'onopang'ono Kutentha kotsika kwambiri (kutentha kochepa -253 ℃) : Zofunikira zocheperako kutentha pa -253 ℃, zitha kusankha zakuthupi za 6Cr14Mo koma ziyenera kugwiritsidwa ntchito pamalo opanda mpweya.

Zindikirani: Pogwiritsira ntchito mayendedwe otsika kutentha, chidwi chiyenera kuperekedwa ku moto woyaka chifukwa cha mafuta osakwanira, choncho chidwi chiyenera kuperekedwa pa kusankha mafuta oyenera.