Cov yam tseem ceeb uas cuam tshuam rau kev hnav

1) Cov khoom ntawm cov khoom siv abrasives

Qhov tawv, qhov loj me ntawm cov khoom me me, thiab cov duab ntawm cov khoom siv abrasive muaj feem cuam tshuam loj heev rau kev hnav. Cov kev sim qhia tau hais tias qhov tawv ntawm cov mov ntau dua, qhov hnav hnyav dua; feem ntau, thaum cov noob abrasive loj yog 20-200um, cov khoom siv yuav hnav zoo dua.

Tus nqi hnav nce ntxiv nrog rau qhov nce ntawm qhov loj me hnav, tab sis thaum qhov loj me ntawm cov khoom abrasive nce mus rau txhua tus nqi tseem ceeb, tus nqi hnav ntawm cov khoom siv yuav luag tsis hloov pauv lossis hloov qeeb heev; cov khoom abrasive polygonal zoo dua li cov khoom spherical thiab du tib lub sijhawm.

Qhov hnav ntau dua 4 npaug nyob rau hauv cov xwm txheej. Hais txog qhov sib piv, cov duab ntawm cov abrasive muaj feem cuam tshuam loj rau cov ntaub ntawv ductile thiab muaj feem cuam tshuam me me rau cov ntaub ntawv brittle.

2) Cov khoom ntawm cov khoom siv hom phiaj

Qhov nyuaj, tawv thiab elastic modulus ntawm cov khoom siv yog cov yam tseem ceeb uas txiav txim siab seb cov khoom siv puas hnav-resistant. Feem ntau hais lus, qhov nyuaj dua, qhov zoo dua qhov toughness, qhov ntau dua qhov elastic modulus ntawm cov khoom siv, qhov zoo dua cov khoom ntawm cov khoom siv.

Zoo dua. Txawm li cas los xij, seb qhov nyuaj, tawv thiab elastic modulus ntawm cov khoom siv lub hom phiaj puas haum rau qee qhov xwm txheej ua haujlwm tsis yog nyob ntawm cov khoom siv nws tus kheej, tab sis nyob ntawm qhov loj ntawm kev hloov pauv hauv ib puag ncig sab nraud. Qhov no kuj yog

3) Lub ntsiab lus thiab lub hom phiaj ntawm kev tiv thaiv kev hnav.

Qhov sib txawv ntawm cov yam ntxwv ntawm kev yaig ntawm cov khoom yas thiab cov khoom tawg yooj yim yog txiav txim siab los ntawm lawv cov txheej txheem yaig sib txawv. Rau cov khoom siv ductile xws li hlau, kev txiav me me yog lub tshuab yaig tseem ceeb; thaum rau cov khoom tawg yooj yim xws li ceramics, kev txiav me me yog lub tshuab yaig tseem ceeb.

Rau cov ntaub ntawv tawv, qhov tawg nthuav dav thiab kev tsim cov pob txha tawg yog cov txheej txheem tseem ceeb ntawm kev yaig.

4) Qhov ceev ntawm qhov xwm txheej

Cov kev sim qhia tau hais tias qhov ceev muaj feem cuam tshuam loj heev rau kev hnav, thiab qhov ntau ntawm kev hnav yog proportional rau lub voos xwmfab ntawm qhov ceev.

5) Lub kaum sab xis ntawm qhov xwm txheej

Lub kaum sab xis ntawm qhov xwm txheej yog lub kaum sab xis ntawm cov kab ke ntawm cov khoom me me uas raug tsoo rau ntawm qhov chaw uas raug tsoo. Thaum lub kaum sab xis ntawm qhov xwm txheej qis heev, lub zog kinetic ntawm cov khoom me me uas raug tsoo hauv qhov kev taw qhia perpendicular rau qhov chaw ntawm cov khoom tsis txaus los ua rau cov khoom puas tsuaj.

Thaum puas tsuaj loj heev, cov khoom tawg yooj yim qhia tau tias muaj qhov nyuaj siab thiab ua rau muaj kev puas tsuaj tsawg dua li cov khoom siv thawj. Qhov no yog vim li cas cov kav dej xws li lub luj tshib, tees, reducers, distributors, thiab lwm yam.

Qhov laj thawj uas ua rau qhov hnav hnyav dua li cov yeeb nkab ncaj yog vim tias nyob rau hauv cov kab ke uas cov yeeb nkab tau siv los thauj cov khoom siv ntev, qhov hnav ntawm cov luj tshib yog li 50 npaug ntau dua li qhov hnav ntawm cov yeeb nkab ncaj.

Qhov cuam tshuam ntawm lub kaum sab xis ntawm qhov xwm txheej muaj feem cuam tshuam nrog hom khoom siv. Cov khoom yas yuav raug kev puas tsuaj ntau dua thaum raug cuam tshuam ntawm lub kaum sab xis ntawm 20 ° -30 °. Txawm li cas los xij, cov khoom tawg yooj yim raug kev puas tsuaj ntau dua thaum raug cuam tshuam ntsug.