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Chakavanzika cheBearing Steel Quality: Core Performance Indicators uye Zvakajairika Zvikanganiso

 

Sechinhu chakakosha mumasisitimu emakanika, mashandiro uye hupenyu hwekutendereramabheyaringiZvinonyanya kuenderana nemhando yesimbi inobereka yavanogadzirwa nayo. Kuti ive nechokwadi chekuti inoshanda zvakanaka pasi pemitoro yakakwira uye kumhanya kwakanyanya, zvinodiwa zvehunyanzvi zvakanyanya zvinoiswa pasimbi.

 

I. Zvinodiwa Pakushanda Kwazvo KwemunhuKutakuraSimbi

 

Kuchena Kwakanyanya uye Kusachena Kwakaderera

 

Zvinhu zvisina simbi zvinowanikwa musimbi (senge ma oxides nema sulfides) ndizvo zvinokonzera kupwanyika kwekuneta. Saka, simbi dzemazuva ano dzinoshandisa nzira dzekuchenesa dzakadai sekubvisa gassing ne electroslag remelting kuderedza sulfur, phosphorus, uye gasi, nokudaro zvichivandudza kufanana kwezvinhu uye simba rekuneta.

 

Kudzora Kuumbwa Kwemakemikari Kwakarurama

 

Nzvimbo hurukuberekaSimbi inonyanya kuve simbi ine chromium yakawanda (yakadai seGCr15). Huremu hwayo hwekabhoni hunofanira kugadzikana pakati pe0.95% ne1.05%, uye huwandu hwechromium hwayo hunofanira kudzorwa pakati pe1.30% ne1.65%. Kuenzanisa kwakaringana kunovimbisa kuomarara kwemartensitic matrix uye macarbide akagovaniswa zvakaenzana mushure mekudzima, zvichiita kuti zvinhu zviwedzere kupfeka uye kuramba kudzvanywa.

 

Kuenzana kweMagadzirirwo eMicrostructure uye Mazinga Akaderera Ehurema

 

Chimiro chemukati meimba hachifanirwe kunge chisina kuparadzaniswa kwakajeka, chimiro cheWidmanstätten, kana network carbides. Chimiro chemukati cheimba chakadzimwa uye chakapfava i cryptocrystalline martensite + carbides dzakapararira zvakanaka + huwandu hwakakodzera hwe austenite yakachengetwa kuti ive nechokwadi chekuti michina yakakwana ine hunhu hwakakwana.

 

Kururama Kwakasimba Pamusoro uye Kururama Kwemativi

 

Pamusoro pesimbi panofanira kunge pasina zvikanganiso zvakaita sekutsemuka, mavanga, uye kudzika kwechikamu chakabviswa kabhoni kunofanira kunge kuri mukati mehuwandu hwakatarwa (kazhinji ≤0.20mm). Uyezve, kushivirira kwehukuru uye kurongeka kwechimiro zvinokanganisa zvakananga kushanda zvakanaka kwekugadzirisa uye goho rinotevera.

 

II. Zvikanganiso Zvakajairika zveMetallurgical uye Mhedzisiro Yazvo: Kuwanda kweZvisina Metallic Includes

 

Zvinhu zvikuru, zvinoputsika (zvakaita seAl₂O₃) zvinogona kukonzera kupararira kwe microcrack munzvimbo dzine stress, zvichideredza zvakanyanya nguva yekuneta.

 

Kuumbwa kwemakabhoyidhi asina kuenzana: Kushandiswa zvisina kunaka kwekukanda kana kupisa kunogona kukonzera kuunganidzwa kwemakabhoyidhi mumabhande kana network, zvichiita kuti simba remuganhu wezviyo rive shoma uye kuwedzera njodzi yekutyoka kwematombo.

 

Zvikanganiso pamusoro: Matsemuka nemakomba anogadzirwa panguva yekumonera, kana akasabviswa nekukurumidza, anogona kupararira panguva yekupisa, zvichiita kuti workpiece iparare.

 

Kubvisa kabhoni zvakanyanya: Kuderera kwehuwandu hwekabhoni pamusoro kunotungamira mukuomarara kwakakwana uye kudzikira kwekudzivirira kubva pakusakara, zvichikanganisa kururama kwebearing uye hupenyu hwese.

 

Muchidimbu, kugadzirwa nekugadzirwa kwesimbi yemhando yepamusoro imhedzisiro yekubatanidzwa kwemaitiro esimbi, sainzi yezvinhu, uye kugadzirwa kwakarurama. Kubva pakudzora kuchena kwesimbi panzvimbo yayo kusvika pakutarisa kushanduka kwezvimiro mukati memaitiro ese, nhanho imwe neimwe yakakosha pakuvimbika kwechigadzirwa chekupedzisira. Mune ramangwana, sezvo michina yepamusoro ichiramba ichida mashandiro akakwira kubva kumabheringi, zvinhu zvitsva zvakaita sesimbi yakachena kwazvo uye simbi yekupisa kwakanyanya zvicharamba zvichikurudzira kufambira mberi kweindasitiri.