Xya lub ntsiab thaum sib tsoo steel npas hnav

Lub pob steel ntawm pob pob yog hnav tawm-sab saum npoo cov khoom ntawm cov khoom yog maj mam ploj vim yog kev siv tshuab. Hnav tsis ua hauj lwm-cov khoom siv ploj poob lawv txoj haujlwm zoo vim kev hnav cov khoom siv. Cov kev cai abrasive coj nyiaj rau ntau dua 50% ntawm tag nrho cov hnav tsho abrasive. Lub npe hu ua abrasive wear: Nws yog ib hom kev coj tshwm sim los ntawm cov khoom sib zog lossis cov khoom tiv thaiv uas nkag rau qhov sib txhuam ntawm sab nraud los ntawm sab nraud kom plow thiab npaj ntau lub zawj ntawm sab softer, uas ua rau lub chaw tsiv mus los ntawm cov khoom Cov. Kev tsom xam cov txheej txheem kev hnav ntawm cov khoom siv tiv thaiv hnav yuav tsum raug txiav txim siab los ntawm ob qho: sab nraud ib puag ncig ib puag ncig ntawm cov neeg kho tshuab coj thiab cov yam ntxwv xam ntawm cov khoom siv tiv taus.

Cov xwm txheej ib puag ncig sab nraud ntawm pob zeb pob zeb steel pob: muaj xya yam khoom xws li hardness, lub zog, ceev, lub kaum ntse ntse, qhov kub, av noo, thiab qhov loj me.

1: Kev Ua Zog: Muaj ntau ntawm cov yam ntxwv ntawm kev coj, cov nyhuv ntawm cov khoom tawv yog qhov tseem ceeb.

2: Lub zog; ntawm no tshwj xeeb yog hais txog qhov ceev ntawm cov khoom siv rau ntawm cov abrasive. Raws li qhov kev coj ntawm lub siab nce ntxiv, tus nqi ntawm cov hnav nce ntxiv, vim tias thaum lub siab hloov zuj zus, kev nkag mus tob ntawm qhov abrasive rau hauv cov khoom siv nce, thiab lub zog rau kev txiav cov nplaim ntawm cov khoom nce.

3: Ceev: Rau ntau hom kev coj, qhov zoo ntawm kev coj ceev yog qhov sib txawv. Nyob rau hauv cov ntaub ntawv ntawm swb zawv zawg, cov nyhuv ntawm nrawm tsis pom tseeb. Yaig hnav nrawm muaj qhov cuam tshuam tseem ceeb ntawm kev hnav. Thaum qhov cuam tshuam nrawm dhau mus rau ib qib, cov ntaub ntawv uas tsis ua rau hnav hauv zawv zawg hnav lossis kev nrawm qis kuj tseem tuaj yeem ua rau hnav lub sijhawm no.

4: Lub kaum ntse ntse: Lub kaum sab xis muaj qhov cuam tshuam zoo ntawm kev hnav hauv kev tiv thaiv hnav. Lub kaum ntse ntse muaj qhov sib txawv ntawm cov khoom tawg thiab ductile. Rau cov khoom tawg yooj yim xws li ceramics, tus nqi ntawm cov hnav nce raws li lub kaum ntse ntse nce ntxiv. Nyob rau hauv cov xwm txheej ntawm feem cuam tshuam ze li ntawm 90 °, tus nqi ntawm cov hnav tau nce mus txog tus nqi ntau dua, uas qhia tau tias cov khoom siv tawg yog tsis tsim nyog siv nyob rau hauv qhov loj-lub qhov dej yaig; rau cov tawv tawv Rau cov ntaub ntawv, qhov nyiaj ntawm thawj zaug nce nrog qhov nce ntawm lub kaum sab xis, nce mus txog tus nqi loj ntawm qee lub kaum sab xis, thiab tom qab ntawd txo nrog qhov nce ntawm lub kaum sab xis. Qhov no qhia tau hais tias cov ntaub ntawv ductile nws nquag hnav thaum ua haujlwm ntawm lub ces kaum qis, thaum lawv muaj peev xwm muab kev ua si tag nrho rau lawv hnav tsis kam ntawm cov ces kaum siab. Qhov no yog vim hais tias qhov nyuaj ntawm cov ntaub ntawv ductile tsawg tsawg, thiab cov xaum abrasive tau txais txiaj ntsig zoo rau qhov txiav ntawm qhov chaw thaum lub ntsej muag tsis sib haum, thiab tus nqi ntawm cov hnav nce ntxiv. Thaum cov khoom tawg yooj yim yog cuam tshuam nrog ntsug, qhov saum npoo ntawm cov khoom yooj yim rau nti thiab tev, yog li tus nqi hnav loj heev.

5: Kub: Raws li qhov kub nce, hnav nce.

6: Vaum: Hauv kev siv tshuab tiag tiag, thaum muaj hlau txhuam txhuam, qhov hnav yuav raug txo kom tsawg thaum cov kua nkag mus rau hauv qhov sib cuam tshuam ntawm abrasive; txawm li cas los xij, nyob rau hauv cov ntaub ntawv ntawm kev hnav abrasive, ya raws nkag mus rau hauv abrasive, thiab hnav yuav dhau los ua qhov hnyav.

7: Qhov loj me me: Abrasive particle loj: qhov cuam tshuam ntawm kev hnav nce linearly nrog qhov nce hauv qhov loj me. Thaum nws nce mus txog ib qho txiaj ntsig, qhov thiaj li hu ua qhov loj qhov me me, qhov kev loj hlob ntawm kev hnav yuav qeeb zuj zus, lossis tsis muaj xwm txheej ntawm kev loj hlob ntxiv.