Abrasive txhais, kev faib tawm thiab code

1 lub ntsiab lus ntawm abrasive 1 (1-1)

 

Lub tswv yim ntawm abrasas muaj cov ntsiab sib txawv ntawm cov theem sib txawv nrog kev txhim kho kev tshawb fawb thiab thev naus laus zis. Cov phau ntawv txhais lus "encyclopedic ntawm science thiab thev naus laus zis" piav qhia txog cov ntaub ntawv uas abrasives yog cov khoom siv nyuaj siv los zom lossis zom lwm yam ntaub ntawv. Abrasives tuaj yeem siv tau nyob ib leeg, lossis lawv tuaj yeem npaj rau hauv kev sib tsoo cov log lossis coated ntawm daim ntawv lossis daim ntaub rau siv. Lub "kev kho tshuab cov tshuab phau ntawv txhais lus" tso ua ke los ntawm Inglasives Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Ntuj Cov tswv yim ntawm cov abrasives tau hais tseg hauv cov qauv abrasives thiab sib tsoo cov cuab yeej siv rau kev sib tsoo hauv kev sib tsoo, sib tsoo thiab polishing; abrasivesives yog cov ntaub ntawv granular ua los ntawm kev loj hlob ntawm cov txheej txheem tsim los ntawm kev sib tsoo, polishing thiab kev sib tsoo cov cuab yeej rau kev tshem tawm cov ntaub ntawv ntau; cov abarseasives muaj abrasives nrog ib tug me me ntawm 4 txog 220; Cov nplais zoo yog cov abrasive dog dig tsis yog coarser tshaj 240 lub qhov ntau thiab tsawg lossis superhard abrasives finer ntau dua 36μm; Cov abrasives yog abrasives uas tau siv ncaj qha rau kev sib tsoo lossis polishing hauv lub xeev pub dawb.

Abrasives tau dhau los ua cov ntaub ntawv tseem ceeb siv hauv kev tsim khoom, kev tiv thaiv kev lag luam, thiab siab niaj hnub {} tech processures. Abrasives tuaj yeem ua rau ntau hom lossis duab ntawm cov cuab yeej sib tsoo lossis cov log sib tsoo. Abrasives yog cov ntaub ntawv tseem ceeb uas ua kom cov cuab yeej sib tsoo kom ua cov txheej txheem sib tsoo, thiab cov muaj kev sib tsoo tau tuaj yeem siv ncaj qha rau kev sib tsoo lossis cov tub ceev xwm.

 

2 Abrasive Kev Kawm Ntawv thiab Code 1 (1-3)

 

Abrasives tau muab faib ua ob pawg: dog dig abrasives thiab salhard abrasives. Cov ob pawg no tau muab faib ua ke ntxiv ua ib qho dej tsaws uas muaj cov abrasives thiab cuav abrasives.

--Classification ntawm abrasives--

Cov uas muaj cov neeg muaj cov khoom siv tau dav hauv cov khoom siv thaum ub. Txij li thaum ntuj ib txwm muaj cov qauv tsis muaj zog, thiab muaj ntau cov impurities, lawv kev sib tsoo tsis zoo thiab lawv tsis tshua siv tam sim no. Artificial abrasives yog siv hauv kev lag luam niaj hnub. Cov ntau yam thiab cov lis dej num ntawm kev siv cov abrasives siv tau siv hauv kuv lub tebchaws tau suav nrog hauv lub teb chaws tus qauv.

Ntuj pob zeb diamond (tseem hu ua pob zeb diamond) yog qhov tsis tshua muaj ntxhia. Lub pov haum - qib qeb diamond yog crystal ntshiab, qhia ib qho tshwj xeeb luster thiab ci ntsa iab. Nws tau raug siv los ua kom zoo nkauj dai kom zoo nkauj txij puag thaum ub. Hauv cov sij hawm niaj hnub no, kev txhim kho cov khoom tshwj xeeb thiab siv tus nqi ntawm pob zeb diamond tau muab kho kom zoo nkauj rau cov khoom lag luam niaj hnub thiab thev naus laus zis. Xyoo 1954, lub pob zeb diamond tiv thaiv, thiab xyoo 1957, cubic boron nitride tau tsim zoo, thiab super {{} Cov abrasives tau tsim sai.