K tam sim no ntawm Graphite M laus
Nyob rau hauv xyoo tsis ntev los no, kev lag luam mould tau tsim sai heev. Graphite cov ntaub ntawv, cov txheej txheem tshiab thiab nce pwm factories mus ntxiv rau cov pwm lag luam. Graphite tau maj mam dhau los ua cov khoom xaiv rau pwm ua nrog nws lub cev zoo thiab tshuaj lom neeg.
Qhia txog graphite pwm
Pwm yog ib qho khoom siv hauv kev tsim khoom, thiab kev ua lag luam pwm yog cov kev lag luam hauv kev lag luam hauv lub tebchaws. Cov khoom lag luam niaj hnub no yog siv rau hauv kev thim khoom, kev sib tw, kev ua tuag, kev txhaj tshuaj yas, los yog lwm txoj kev ua, thiab sib piv nrog cov qauv pwm ua rau cov seem uas tsim nyog ntawm cov khoom . Cov cuab yeej thiab cov khoom siv uas peb siv hauv peb txhua hnub thiab ntau lub neej los ntawm lub hauv paus ntawm lub cuab yeej tshuab los mus rau sab nraud ntawm lub tshuab. Nws yog qhov tsawg txaus kom muaj ib lub vias embryo, khawm thiab ib lub plhaub ntawm ntau yam khoom siv hauv tsev, txhua yam uas muaj kev sib raug zoo nrog cov pwm. Cov duab ntawm cov pwm txiav txim siab cov duab ntawm cov khoom no, thiab qhov zoo thiab ua kom tiav ntawm lub pwm txiav txim siab qhov zoo ntawm cov khoom no. Nyob rau hauv xyoo tsis ntev los no, kev lag luam mould tau tsim sai heev. Graphite cov ntaub ntawv, cov txheej txheem tshiab thiab nce pwm factories mus ntxiv rau cov pwm lag luam. Graphite tau maj mam dhau los ua cov khoom xaiv rau pwm ua nrog nws lub cev zoo thiab tshuaj lom neeg.
Kev ua tau zoo heev
1. Kev siv hluav taws xob thiab hluav taws xob zoo
2. Thermal thermal expansion coefficient thiab thermal poob siab
3. Tshuaj tua kab mob yog qhov nyuaj rau cov neeg ua pa feem ntau tsis hnov mob
4. Thaum muaj kev kub ntxhov (saum toj ntawm feem ntau tooj liab raws sintering sov tshaj 800 ° C) lub zog nce nrog kub zuj zus
5. Muaj lubric lub cev zoo thiab hnav tsis taus
6. Ib qho yooj yim rau kev ua, kev ua haujlwm zoo, yuav ua tau rau hauv txoj kev zoo, siab precision pwm
7. Siv dav hlau nruam thiab semi-nruam cov hlau uas tsis yog ferrous
8. Kev tsim tawm hom graphic yog ceev, qhov loj yog qhov tseeb, qhov nplaim yog du, cov qauv siv lead ua tsis zoo, thiab cov seem seem tsawg.
Ib pplication
Tam sim no, graphite pwm tau siv dav hauv cov nram qab no:
Graphite pwm rau nruam casting thiab semi-nruam casting ntawm non-ferrous co
Xyoo tas los no, cov khoom siv xws li kev tsim cov pas nrig lossis cov kav dej ncaj qha thiab tsis tu ncua (lossis semi-tsis tu ncua) los ntawm lub xeev cov hmoov hlau raug nce hauv tsev thiab txawv teb chaws. Domestically, tus qauv no tau raug pom los ntawm cov tooj liab, tooj liab hlau, txhuas, thiab txhuas txhuas. Artificial graphite yog xav tias yog cov khoom tsim rau nruam casting los yog semi-nruam casting ntawm non-ferrous hlau. Kev xyaum ua pov thawj vim tias kev siv cov graphite pwm, vim tias nws cov thermal conductivity (thermal conductivity pom tseeb ntawm cov hlau los yog hlau), cov khoom ntiag tug ntawm lub puab thiab lwm yam tsis zoo tuaj yeem txhim kho kev ceev ntawm cov pwm , tab sis kuj qhov loj ntawm ingot. Muaj tseeb, tus npliag deg, cov qauv siv lead ua, yuav ua ncaj qha ua tus txheej txheem tom ntej. Qhov no tsis tsuas zoo heev kho lub yield, thiaj li poob ntawm pov tseg, tab sis kuj zoo kawg nkaus kho txhim lub zoo ntawm cov khoom. Nruam casting txoj kev muaj xws li ntsug nruam nruam thiab kab rov tav nruam casting.
Siab casting pwm
Artificial graphite cov ntaub ntawv tau muab coj los siv rau hauv kev nrum ntawm cov hlau uas tsis yog ferrous. Piv txwv, zinc alloys thiab tooj liab alloy castings uas ua los ntawm lub siab casting pwm uas ua los ntawm cov khoom siv dag zog graphic tau muab siv rau cov tsheb thiab qhov zoo li.
Graphite puab rau centrifugal casting
Graphite pwm tau zoo siv rau centrifugal casting. Lub Tebchaws Asmeskas tau siv cov khoom puab graphite pwm nrog lub phab ntsa ntawm 25 hli los yog ntau tshaj rau centrifugally cast cast iron casings. Yuav kom tiv thaiv qhov kub ntawm cov khoom cua graphite pwm, qee cov tshuaj tiv thaiv oxidation yuav raug coj. Tom qab muab cov khoom pov tseg, yog tias sab hauv lub pwm ntawm cov pwm tuaj yeem raug hlawv, lub qhov pwm ntawm qhov pwm tuaj yeem yuav raug siv los tuav cov tes tsho loj.
Kub nias tuag
Qhov txua graphite kub xovxwm tuag muaj cov yam ntxwv zoo li nram qab no rau lub siab sintering ntawm cemented carbide: Ua ntej, yog tias qhov kub siab txias nce mus rau 1350-1450 degrees, lub siab yuav tsum tau txo kom tsawg mus rau 67-100 kg / cm2. (uas yog, 1/10 ntawm kev kub ceev pressing siab); Qhov thib ob, kev sib ntswg thiab cua sov yog nqa tawm hauv tib txoj kev, thiab lub cev sintered tau los ntawm sintering rau ib lub sij hawm luv luv.
Iav ua pwm
Vim tias graphite cov khoom muaj chemical stability, nws tsis yooj yim rau infiltrated by molten iav, tsis hloov cov lus uas muaj iav, graphite cov khoom muaj cua sov thermal kuj zoo, thiab nws qhov kev hloov me ntsis nrog kub, ces nws tau ua ib qho pwm tsis txaus iav manufacturing nyob rau hauv xyoo tas los. Cov khoom siv, uas yog siv los ua iav hlawv, lauj tshib, cov khoom noj thiab lwm cov pwm rau ntau hom iav fwj.
Sintered tuag thiab lwm yam pob zeb diamond sintering pwm
Kev siv cov khoom xyaw graphite nrog cov dej thermal deformation me me heev, kev tsim cov sintered molds thiab cov kev txhawb zog rau transistors tau siv dav, thiab nws tau dhau los ua ib qho khoom tseem ceeb rau txoj kev lag luam ntawm cov kev lag luam semiconductor. Tsis tas li ntawd, graphite pwm tseem siv rau hauv cov pwm hlau pwm, cov pwm ruaj rau ntau hom hlau tsis zoo, pov phom cov pwm, pwm rau cov hlau uas muaj cua sov (titanium, zirconium, molybdenum, thiab lwm yam) thiab txhuas txhuam txoj hlua. Kub pob txha cua kub, thiab lwm yam. Lub graphite tuag rau cov cuab yeej kub sintered diamonds plays dual lub luag hauj lwm ntawm cov cua kub ntsiab thiab pwm kev them nyiaj yug nyob rau hauv txoj kev tsim cov pob zeb diamond. Qhov zoo ntawm graphite pwm ncaj qha rau cuam tshuam qhov tseeb qhov tseeb thiab cov tsos ntawm pob zeb diamond. Cov kub kub sintering tus txheej txheem yuav tsum tau: qhov kub txog li (1 000 ± 2) ° C, lub siab molding yog 16 ~ 50 MPa, tuav ceev yog 15 ~ 30 min, thiab ib puag ncig yog tsis muaj qhov nqus. Nyob rau hauv cov dej num no, lub graphite pwm uas yuav tsum tau moulding thiab cua sov cov ntsiab lus muaj conductivity, high hluav taws xob resistivity, txaus ua tau lub zog, thiab oxidation zoo kuj thiab ntev lub neej kom paub meej pob zeb diamond. Lub qhov dav thiab kev ua tau zoo ntawm lub cuab yeej. Tam sim no, graphite puab cov ntaub ntawv rau pob zeb diamond tuam txab hauv cov teb chaws uas tsim sab hnub poob yog cov khoom ultrafine particle, cov khoom purity siab thiab graphite graphite graphite, thiab qhov nruab nrab qhov me me yuav tsum yog tsawg tshaj 15 μm los yog 10 μl, thiab qhov nruab nrab ntawm qhov dej qhov loj me tshaj 2 μm. Lub graphite pwm ntawm cov khoom siv muaj me me porosity, compact structure, siab nto smoothness thiab muaj zog oxidation, thiab qhov nruab nrab kev pab lub neej muaj peev xwm ncav cuag 30 mus 40 zaug. Lub pob zeb diamond yuav tsum muaj kev kub ntxhov, zoo oxidation tsis kam thiab siab ua precision. Kev siv cov khoom zoo ntawm graphite zoo heev ua rau lub neej pwm ntawm cov pwm thiab ua rau oxidation tsis kam.
Ua tshuab
Ua ntej tshaj plaws, nws tsim los ntawm cov pwm tsim tawm raws li qhov yuav tsum tau ua ntawm qhov khoom (qhov), qauv pwm tsim, kos duab kos thiab ua tiav los ntawm cov neeg ua haujlwm ua haujlwm raws li cov duab kos (xws li lathes, planers, milling cav, sib tsoo cav, hluav taws xob fais fab, Ntau yam khoom siv xws li hlau txiav) Ua txhua feem ntawm pwm thiab sib sau ua ke thiab debug txog thaum nws tsim tau cov khoom tsim nyog.
Raws li txoj cai thiab kev loj hlob
Hnub no, graphite mold kev lag luam plays lub luag haujlwm tseem ceeb hauv lub neej thiab kev loj hlob ntawm tib neeg. Kev txhim kho ntawm ntau lub lag luam (xws li tshuab electromechanical, automotive, tsev khoom siv hluav taws xob, kev siv hluav taws xob, kev sib txuas lus, ordnance, thiab lwm yam.) Nyob ntawm kev txhim kho kev lag luam thiab kev txhim kho kev lag luam pwm. Tag nrho cov teb chaws hauv ntiaj teb tau nqis peev ntau ntawm tib neeg thiab nyiaj txiag los tsim cov graphite mold kev lag luam. Sikri, zoo ib yam li lub teb chaws Yelemees, thiab Nyiv Toyo Carbon tau coj ua txoj haujlwm hauv kev lag luam thoob ntiaj teb graphite. Tuam Tshoj kuj tau txhim kho qhov tseem ceeb rau txoj kev lag luam pwm. Cov qib pwm siv tshuab ua haujlwm tau los ua ib qho tseem ceeb qhia txog kev tsim cov khoom tsim nyob hauv ib lub teb chaws, vim hais tias cov pwm txiav txim siab qhov kev ua tau zoo, kev ua tau zoo thiab kev loj hlob ntawm cov khoom tshiab rau ntau ntau. . Txij li xyoo 1997, Tuam Tshoj lub tuam tsev tswj hwm tau pib ua qhov tseem ceeb rau thiab txhawb txoj kev lag luam graphite, thiab loj hlob tuaj ntawm Suav tuam tsev hauv lub lag luam graphite mold. Tam sim no lawv tau tiav cov txiaj ntsim tau zoo thiab tau pab rau Tuam Tshoj txoj kev tawm txawv teb chaws cov nyiaj khwv tau los. Rau yav tom ntej txoj kev loj hlob ntawm kev lag luam mold, leej twg tuaj yeem ua tiav cov pwm khoom hauv lub sij hawm luv luv, leej twg yeej tus qhua thiab yeej kev ua lag luam. Graphite pwm (graphite electrodes) tau tsim ib txoj haujlwm tseem ceeb thiab kev txhim kho yav tom ntej hauv kev lag luam ua ke vim tias lawv ua tau zoo tshaj plaws hauv txhua txoj haujlwm.
