Puas yog xuab zeb yog pob zeb lossis tsis yog?

Cov txheej txheem:

Puas yog xuab zeb yog pob zeb lossis tsis yog?
Puas yog xuab zeb yog pob zeb lossis tsis yog?

Video: Puas yog xuab zeb yog pob zeb lossis tsis yog?

Video: Puas yog xuab zeb yog pob zeb lossis tsis yog?
Video: xum yog tus maiv siab dawb/ Maiv thoj/ nkauj taw. tshiab 2023 2024, Kaum ib hlis
Anonim

Qhov tau hais tias, ob pawg tseem ceeb ntawm cov ntawv xuab zeb yog silicon carbide thiab aluminium oxide Nyob rau hauv cov pawg no muaj ntxhib thiab nplua grits muaj, tab sis nws boils mus rau dab tsi ua haujlwm. sandpaper yog siv rau. Almandine yog garnet ntxhia uas feem ntau siv los ua cov ntawv xuab zeb.

Daim ntawv xuab zeb yog dab tsi?

Dhau li ntawm cov grits thiab qib, cov ntawv xuab zeb yog ua los ntawm cov khoom sib txawv ntawm cov tshuaj. Nws tuaj yeem tsim los ntawm nplej ntawm cov pob zeb ntuj hu ua garnet, lossis los ntawm cov khoom siv xws li txhuas oxide, alumina-zirconia lossis silicon carbide.

pob zeb dab tsi siv rau hauv cov ntawv xuab zeb?

Txawm hais tias quartz tsis tshua siv dua li cov abrasive, feem ntau muaj plaub yam sib txawv ntawm cov ntxhia uas ua cov ntawv xuab zeb

  • Aluminium oxide yog kab tias feem ntau siv raws li nws siv feem ntau rau kev ua haujlwm ntoo. …
  • Garnet yog lwm hom pob zeb siv, thiab nws muab cov ntawv xuab zeb ua bronze lossis xim liab.

Dab tsi yog pob zeb hauv cov ntawv xuab zeb thiab iav?

Quartz xuab zeb yog qhov nyuaj txaus rau kev ua haujlwm ntoo (Mohs hardness 7), tab sis nws tsis tawv heev lossis ntse. Qhov zoo ntawm cov xuab zeb sandpaper yog nws pheej yig. Cov neeg ua haujlwm zoo nkauj qee zaus siv flint sandpaper los yog iav ntawv. Flint, ib daim ntawv ntawm chert, yog pob zeb ua los ntawm microcrystalline quartz.

Puas yog sandstone siv rau hauv cov ntawv xuab zeb?

Sandstones yog ua los ntawm sand grains uas tau cemented ua ke. Zoo li cov ntawv xuab zeb, cov xuab zeb feem ntau muaj qhov ntxhib, zoo nkauj, tab sis txhawm rau txheeb xyuas cov xuab zeb tiag tiag koj yuav tsum ua tib zoo saib ntawm nws qhov chaw thiab nrhiav cov xuab zeb ib leeg.

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