20 CR4

20CR4 yog ib hom hlau alloy uas tuav qhov tseem ceeb hauv ntau daim ntawv thov kev lag luam vim nws cov khoom sib txawv thiab muaj peev xwm.

Qhov muaj pes tsawg leeg ntawm 20CR4 yog tsim los ua kom tiav los muab cov txheej txheem tshwj xeeb. Nws feem ntau muaj cov ntsiab lus xws li chromium (Cr), carbon (C), manganese (Mn), silicon (Si), thiab cov lej ntawm lwm cov ntsiab lus. Cov ntsiab lus chromium, piv txwv li, imparts txhim kho hardness thiab hnav tsis kam rau cov hlau.

Ib qho ntawm cov yam ntxwv tseem ceeb ntawm 20CR4 yog nws lub zog txhua yam. Nws muaj lub zog tensile siab heev, tso cai rau nws tiv taus ntau yam loads thiab mechanical stresses yam tsis muaj kev cuam tshuam loj lossis tsis ua haujlwm. Qhov no ua rau nws haum rau cov ntawv thov uas cov khoom raug cuam tshuam rau cov haujlwm hnyav.

Ntxiv nrog rau lub zog, 20CR4 kuj pom zoo hardness. Cov cuab yeej no muaj txiaj ntsig tshwj xeeb hauv cov xwm txheej uas tiv thaiv kev puas tsuaj thiab hnav yog qhov tseem ceeb. Cheebtsam ua los ntawm 20CR4, xws li lub zog thiab cov ncej, tuaj yeem tswj tau lawv cov duab thiab kev ua haujlwm ntev ntev ntawm kev siv hauv qhov xav tau ib puag ncig.

Lub ductility ntawm 20CR4 yog lwm qhov tseem ceeb. Txawm hais tias nws muaj lub zog thiab tawv, nws khaws tau qee qhov kev sib tw, ua rau nws mus rau cov yas deformation rau qee qhov ua ntej tawg. Cov yam ntxwv no muaj txiaj ntsig zoo thaum tsim cov txheej txheem uas koom nrog kev tsim thiab tsim cov khoom.

Kev kho cua sov ntawm 20CR4 yog qhov tseem ceeb heev. Los ntawm cov txheej txheem xws li quenching thiab tempering, cov khoom siv kho tshuab ntawm cov hlau tuaj yeem ua tau zoo-tuned kom tau raws li qhov yuav tsum tau muaj ntawm cov ntawv thov tshwj xeeb. Qhov kev hloov pauv hauv kev kho cua sov no tso cai rau kev ua kom zoo dua qhov hardness, lub zog, thiab toughness ntawm 20CR4.

Thaum nws los txog rau cov txheej txheem tsim khoom, 20CR4 muaj cov khoom siv tau zoo. Nws tuaj yeem ua tshuab siv cov cuab yeej siv thiab cov txheej txheem, txawm hais tias tsim nyog tsis thiab txiav cov kua dej yuav tsum tau xaiv kom ntseeg tau tias kev ua haujlwm zoo thiab raug.

Lub microstructure ntawm 20CR4 plays lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws qhov kev ua tau zoo tag nrho. Ib qho zoo thiab homogeneous microstructure ua rau kev txhim kho cov cuab yeej thiab kev ntseeg tau. Kev tshuaj xyuas microstructural feem ntau yog ua los ntsuas qhov zoo thiab sib xws ntawm cov hlau.

20CR4 pom kev siv dav hauv ntau lub lag luam. Nyob rau hauv lub automotive sector, nws yog ua hauj lwm nyob rau hauv zus tau tej cov cav Cheebtsam, kis tau tus mob qhov chaw, thiab ncua kev kawm ntawv systems. Lub tshuab tsim kev lag luam siv nws rau kev tsim cov iav, qag, thiab ntau yam khoom siv tshuab uas xav tau kev sib xyaw ua ke ntawm lub zog thiab hnav tsis kam.

Hauv cov txheej txheem xaiv cov khoom, 20CR4 feem ntau nyiam dua lwm cov hlau thaum daim ntawv thov xav tau qhov sib npaug ntawm lub zog, hardness, ductility, thiab hnav tsis kam. Nws cov khoom ua rau nws muaj kev ntseeg siab rau cov khoom siv uas ua haujlwm hauv cov xwm txheej nyuaj.

Txhawm rau lav qhov zoo thiab kev ua tau zoo ntawm 20CR4, kev tswj xyuas nruj nruj yog siv thoob plaws lub voj voog ntau lawm. Kev tshuaj xyuas tshuaj muaj pes tsawg leeg yog ua los xyuas kom meej qhov kev faib ua feem ntawm cov khoom. Kev ntsuam xyuas tshuab yog ua los ntsuas lub zog tensile, hardness, elongation, thiab lwm yam khoom siv. Cov kev kuaj tsis muaj kev puas tsuaj kuj tseem yuav raug ua haujlwm los kuaj xyuas cov teeb meem sab hauv lossis qhov tsis zoo.

Hauv kev xaus, 20CR4 yog ntau yam thiab txhim khu kev qha hlau hlau uas ua lub luag haujlwm tseem ceeb hauv ntau daim ntawv thov kev lag luam. Nws cov khoom sib xyaw tshwj xeeb, nrog rau nws qhov kev hloov pauv mus rau kev tsim khoom sib txawv thiab kev kho cua sov, ua rau nws yog ib qho tseem ceeb rau ntau yam engineering thiab kev tsim khoom. Kev tshawb fawb txuas ntxiv thiab kev txhim kho hauv thaj chaw ntawm cov ntaub ntawv tshawb fawb zoo li yuav nthuav dav nws cov kev siv tau thiab txhim kho nws cov kev ua tau zoo yav tom ntej.
 

Cim npe nrov: 20cr4, Tuam Tshoj 20cr4 lwm tus neeg, hoobkas