Silicon carbide (SiC) yog qhov siab - tawv hluavtaws abrasive nrog Mohs hardness txog li 9.5, qeb qis dua pob zeb diamond thiab cubic boron nitride (CBN). Nws yog qhov tshwj xeeb zoo rau kev sib tsoo cov ntaub ntawv nyuaj thiab nkig xws li cemented carbide, ceramics, thiab iav, nrog rau qis - cov hlau tsis muaj zog xws li txhuas thiab tooj liab. Ntawm ntau hom silicon carbide,dub silicon carbidethiabntsuab silicon carbideyog ob qho kev siv ntau tshaj plaws. Txawm li cas los xij, lawv sib txawv heev hauv kev sib xyaw, cov khoom tseem ceeb, thiab cov ntawv thov tsim nyog. Cov ntu hauv qab no sib piv ob qho abrasives nyob rau hauv cov nqe lus ntawm hardness, toughness, thermal conductivity, thiab lwm yam tseem ceeb, thaum muab tswv yim qhia rau abrasive xaiv.
Cov ncauj lus kom ntxaws sib piv ntawm Dub Silicon Carbide thiab Green Silicon Carbide
1. Kev sib xyaw thiab kev tsim khoom
| Feature | Dub Silicon Carbide (C) | Ntsuab Silicon Carbide (GC) |
|---|---|---|
| Kev sib xyaw | SiC purity feem ntau yog 97-98%, nrog me me ntawm impurities xws li Fe₂O₃. | SiC purity yog siab dua 98%. |
| Kev tsim khoom | Quartz xuab zeb thiab roj av coke yog siv los ua cov ntaub ntawv tseem ceeb thiab smelted ntawm kwv yees li 2200 degree. | Petroleum coke thiab siab -silica zoo yog siv los ua cov ntaub ntawv tseem ceeb. Ntsev yog ntxiv raws li ib tug additive, ua raws li los ntawm high - kub smelting nyob rau hauv lub qhov cub tsis kam. |
| Xim | Dub | Ntsuab, nrog nws cov yam ntxwv kho qhov muag uas tshwm sim los ntawm nws cov purity siab. |
Qhov txawv tseem ceeb:Ntsuab silicon carbide muaj purity ntau dua thiab ua tiav cov qauv siv lead ua ntau dua, muab cov tawv tawv dua thiab ntau dua brittleness dua li cov xim dub silicon carbide.
2. Cov ntsiab lus sib piv ntawm lub cev muaj zog
| Khoom | Dub Silicon Carbide (C) | Ntsuab Silicon Carbide (GC) |
|---|---|---|
| Hardness | 9.2–9.3, me ntsis qis dua ntsuab silicon carbide | 9.4-9.5, tam sim no yog hom nyuaj tshaj plaws ntawm silicon carbide |
| Toughness | Zoo toughness zoo thiab zoo dua tiv thaiv kev cuam tshuam | Tsawg toughness thiab ntau yooj yim rau tawg |
| Thermal conductivity | Cov thermal conductivity zoo heev, tso cai rau cov cua sov kom dissipate sai thiab ua kom haum rau kev sib tsoo tsis tu ncua | Cov thermal conductivity tsawg, yog li cov dej txias txaus yuav tsum tau siv thaum sib tsoo |
| Tus kheej -Neeg | Nruab nrab tus kheej-ntxuav; abrasive grains feem ntau yuav tawg thaum sib tsoo | Tus kheej zoo heev -sharpening, ua rau nws haum rau precision sib tsoo daim ntaub ntawv |
Cov ntsiab lus tseem ceeb:
Dub silicon carbide:Muab qhov sib npaug zoo ntawm hardness thiab toughness, ua rau nws haum rau kev sib tsoo sib tsoo thiab kev sib tsoo sib tsoo.
Ntsuab silicon carbide:Muab cov hardness siab heev tab sis yog nkig, ua rau nws zoo dua rau kev sib tsoo precision thiab machining ntawm ultra- cov ntaub ntawv nyuaj.
3. Tej thaj chaw thov
| Hom khoom | Pom zoo Silicon Carbide Hom | Pom zoo vim li cas |
|---|---|---|
| Cam khwb cia hlau, tooj liab, aluminium | Dub Silicon Carbide (C) | Nws txaus toughness pab tiv thaiv ntau abrasive grain breakage thaum muab cov nqi zoo. |
| Cemented Carbide (YG) | Ntsuab Silicon Carbide (GC) | Nws cov hardness siab dua ua tau zoo txiav WC-Co cemented carbide thiab pab txo qis abrasive grain adhesion. |
| Ceramics, iav | Ntsuab Silicon Carbide (GC) | Cov ntse ntse, siab -purity abrasive nplej muab kev txiav zoo thaum pab txo kev puas tsuaj rau cov khoom ua haujlwm thaum sib tsoo. |
| Roj hmab, yas | Dub Silicon Carbide (C) + Cua -Cooled Sib Tsoo Log | Cov qauv qhib abrasive kuj pab tiv thaiv kev txhaws, thaum cov khoom siv qis dua muab kev lag luam zoo tag nrho. |
Yuav Ua Li Cas Koj Yuav Xaiv Txoj Cai Silicon Carbide Sib Tsoo Log?
Thaum xaiv Black Silicon Carbide (C):
Rau qis- zog hlau:
Dub silicon carbide yog ib qho kev xaiv rau kev sib tsoo cov ntaub ntawv xws li txhuas, tooj liab, thiab cam khwb cia hlau.
Rau hnyav-lub luag haujlwm ntxhib sib tsoo:
Thaum daim ntawv thov yuav tsum tau zoo dua toughness los yog thaum tus nqi yog ib qho tseem ceeb rau kev txiav txim siab, dub silicon carbide yog ib tug tswv yim xaiv rau hnyav Tshuag tshem tawm thiab ntxhib kev sib tsoo ua hauj lwm.
Thaum xaiv Green Silicon Carbide (GC):
Rau precision sib tsoo ntawm ultra- cov ntaub ntawv nyuaj:
Ntsuab silicon carbide tau pom zoo rau kev ua tiav cemented carbide, ceramics, gemstones, thiab lwm yam ntaub ntawv nyuaj.
Rau qhov chaw siab - ua kom tiav:
Ntsuab silicon carbide yog qhov zoo dua rau cov ntawv thov uas yuav tsum tau ua kom zoo heev, xws li polishing optical iav.
Kev txiav txim siab xaiv:
Kev siv coolant:
Ntsuab silicon carbide yog feem ntau ua rau thermal cracking, yog li qhov txaus txaus ntawm coolant yog pom zoo thaum sib tsoo.
Grit xaiv:
Rau kev sib tsoo ntxhib, 36 # - 80 # grit feem ntau pom zoo, thaum 100 # - W40 grit yog qhov tsim nyog rau kev sib tsoo.
