Kev siv Graphite

1. Raws li cov khoom siv refractory: Graphite thiab nws cov khoom muaj cov khoom ntawm qhov kub thiab txias tsis kam thiab siab zog. Lawv tsuas yog siv hauv kev lag luam metallurgical los tsim cov graphite crucibles. Hauv steelmaking, graphite feem ntau yog siv los ua tus neeg sawv cev tiv thaiv rau steel ingots thiab sab hauv liner ntawm metallurgical furnaces.

2. Cov khoom siv hluav taws xob: siv hauv kev lag luam hluav taws xob ua cov khoom siv hluav taws xob zoo rau kev tsim cov electrodes, txhuam, carbon rods, carbon tubes, mercury zoo ndlwg li, graphite gaskets, xov tooj qhov chaw, coatings rau TV duab raj, thiab lwm yam.

3. Wear-resistant lubricants: Graphite feem ntau yog siv los ua cov roj nplua nyeem hauv kev lag luam tshuab. Lubricating roj feem ntau tsis siv nyob rau hauv kev kub ceev, siab kub thiab siab siab tej yam kev mob, thaum graphite hnav resistant ntaub ntawv yuav ua hauj lwm nyob rau hauv siab zawv zawg speeds ntawm 200 ~ 2000 ° C yam tsis muaj lubricating roj. Ntau yam khoom siv thauj khoom corrosive yog siv dav hauv cov khoom siv graphite los ua piston khob, seals thiab bearings. Lawv tsis tas yuav lubricated thaum ua haujlwm.

4. Graphite muaj tshuaj ruaj khov zoo. Tshwj xeeb ua tiav graphite, uas muaj cov yam ntxwv ntawm corrosion kuj, zoo thermal conductivity thiab tsis tshua muaj permeability, yog dav siv nyob rau hauv lub tsim ntawm tshav kub exchangers, tshuaj tiv thaiv tso tsheb hlau luam, condensers, combustion towers, nqus yees, coolers, heaters, lim. , cov khoom siv twj tso kua mis. Siv dav hauv petrochemical, hydrometallurgy, acid thiab alkali ntau lawm, hluavtaws fiber ntau, ntawv thiab lwm yam kev lag luam, tuaj yeem txuag tau ntau cov ntaub ntawv hlau.

5. Rau casting, sanding, compression molding thiab pyrometallurgical cov ntaub ntawv: Vim hais tias graphite muaj ib tug me me thermal expansion coefficient thiab muaj peev xwm tiv taus txias txias thiab hloov ceev, nws yuav siv tau raws li pwm rau iav. Tom qab siv graphite, ferrous hlau yuav siv tau kom tau qhov tseeb casting qhov ntev thiab siab deg tiav yield. Nws tuaj yeem siv yam tsis muaj kev ua haujlwm lossis kev ua haujlwm me ntsis, yog li txuag tau ntau ntawm cov hlau.

6, rau kev lag luam atomic zog thiab kev lag luam tiv thaiv lub teb chaws: graphite muaj ib tug zoo neutron moderator siv nyob rau hauv atomic reactors, uranium-graphite reactor yog ib tug dav siv atomic reactor. Cov khoom decelerating nyob rau hauv lub nuclear reactor raws li lub hwj chim qhov chaw yuav tsum muaj ib tug siab melting point, ruaj khov, thiab corrosion-resistant zog, thiab graphite muaj peev xwm ua tau raws li cov kev cai saum toj no. Lub purity ntawm graphite siv los ua lub atomic reactor yog siab heev, thiab cov ntsiab lus impurity yuav tsum tsis pub tshaj kaum ntawm PPM. Tshwj xeeb, cov ntsiab lus boron yuav tsum tsawg dua 0.5 PPM. Hauv kev tiv thaiv kev lag luam, graphite kuj tseem siv los ua cov roj foob pob hluav taws tsis zoo, foob pob hluav taws lub qhov ntswg, qhov chaw ntawm cov khoom siv hauv chaw navigation, cov ntaub ntawv rwb thaiv tsev thiab cov ntaub ntawv tiv thaiv hluav taws xob.

7. Graphite kuj tiv thaiv boiler fouling. Ntxiv ib qho nyiaj ntawm graphite hmoov rau dej (li 4 mus rau 5 grams ib tuj dej) tiv thaiv fouling ntawm lub boiler nto. Tsis tas li ntawd, graphite tuaj yeem pleev xim rau ntawm cov hlau chimneys, ru tsev, txuas hniav thiab cov kav dej kom tiv thaiv corrosion thiab xeb.
8. Graphite tuaj yeem siv ua xaum xaum, xim xim, thiab tus neeg saib xyuas polishing. Tom qab kev ua haujlwm tshwj xeeb ntawm graphite, ntau yam khoom tshwj xeeb tuaj yeem tsim rau cov khoom lag luam uas cuam tshuam.
9. Electrode: Graphite tuaj yeem hloov tau tooj liab li electrode. Nyob rau xyoo 1960, tooj liab tau dav siv los ua cov khoom siv hluav taws xob, nrog rau kev siv li ntawm 90% thiab graphite tsuas yog li 10%. Nyob rau hauv lub xyoo pua 21st, ntau thiab ntau cov neeg siv pib xaiv graphite raws li cov khoom siv electrode, hauv Tebchaws Europe, ntau dua 90%. Cov khoom siv electrode saum toj no yog graphite. Tooj liab, ib zaug tseem ceeb cov khoom siv electrode, yuav luag poob nws qhov zoo dua piv rau graphite electrodes. Graphite maj mam hloov tooj liab raws li cov khoom xaiv rau EDM electrodes.