Muaj ntau lub hauv paus rau kev xaiv cov ntaub ntawv graphite electrode, tab sis muaj plaub qhov tseem ceeb:
1. Qhov nruab nrab ntawm cov khoom me me ntawm cov khoom
Qhov nruab nrab ntawm cov khoom me me ntawm cov khoom siv ncaj qha cuam tshuam rau qhov xwm txheej ntawm cov khoom tawm.
Qhov me dua qhov nruab nrab ntawm cov khoom siv, qhov sib npaug ntawm cov khoom tso tawm, qhov ruaj khov ntawm cov khoom tso tawm, thiab qhov zoo dua ntawm qhov chaw.
Rau cov pwm forging thiab die-casting uas muaj qhov chaw qis thiab qhov yuav tsum tau ua kom raug, feem ntau pom zoo kom siv cov khoom coarser, xws li ISEM-3, thiab lwm yam; rau cov pwm hluav taws xob uas muaj qhov chaw siab thiab qhov yuav tsum tau ua kom raug, nws raug pom zoo kom siv cov ntaub ntawv nrog qhov nruab nrab ntawm qhov loj me hauv qab 4μm.
Txhawm rau kom ntseeg tau tias qhov tseeb thiab qhov tiav ntawm cov pwm ua tiav.
Qhov me dua qhov nruab nrab ntawm cov khoom me me, qhov poob ntawm cov khoom me me, thiab lub zog ntau dua ntawm cov pab pawg ion.
Piv txwv li, ISEM-7 feem ntau pom zoo rau cov pwm tuag-casting thiab forging pwm. Txawm li cas los xij, thaum cov neeg siv khoom muaj qhov xav tau siab tshwj xeeb, nws raug pom zoo kom siv cov ntaub ntawv TTK-50 lossis ISO-63 kom ntseeg tau tias cov khoom poob tsawg dua.
Xyuas kom meej qhov tseeb thiab qhov roughness ntawm cov pwm.
Tib lub sijhawm, qhov loj dua cov khoom me me, qhov ceev dua qhov kev tawm mus thiab qhov me dua qhov poob ntawm kev ua haujlwm ntxhib.
Qhov laj thawj tseem ceeb yog tias qhov tam sim no ntawm cov txheej txheem tso tawm sib txawv, uas ua rau muaj zog tso tawm sib txawv.
Tab sis qhov tiav ntawm qhov chaw tom qab tso tawm kuj hloov pauv nrog qhov kev hloov pauv ntawm cov khoom me me.
2. Lub zog flexural ntawm cov khoom siv
Lub zog flexural ntawm cov khoom siv yog qhov qhia ncaj qha ntawm lub zog ntawm cov khoom siv, qhia txog qhov nruj ntawm cov qauv sab hauv ntawm cov khoom siv.
Cov khoom siv muaj zog heev muaj kev ua haujlwm tiv thaiv kev tawm hluav taws xob zoo. Rau cov electrodes uas xav tau kev ntsuas siab, sim xaiv cov khoom siv muaj zog dua.
Piv txwv li: TTK-4 tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov pwm txuas hluav taws xob dav dav, tab sis rau qee cov pwm txuas hluav taws xob nrog cov kev xav tau tshwj xeeb, koj tuaj yeem siv cov khoom me me tab sis muaj zog dua me ntsis TTK-5.
3. Ntug dej tawv ntawm cov khoom siv
Hauv kev nkag siab txog graphite, graphite feem ntau suav hais tias yog cov khoom siv mos mos.
Txawm li cas los xij, cov ntaub ntawv xeem tiag tiag thiab cov xwm txheej ntawm daim ntawv thov qhia tau tias qhov nyuaj ntawm graphite siab dua li ntawm cov khoom siv hlau.
Hauv kev lag luam graphite tshwj xeeb, tus qauv ntsuas qhov nyuaj thoob ntiaj teb yog txoj kev ntsuas Shore hardness, thiab nws cov hauv paus ntsiab lus ntsuas txawv ntawm cov hlau.
Vim yog cov qauv graphite uas muaj ntau txheej, nws muaj kev ua tau zoo heev thaum lub sijhawm txiav. Lub zog txiav tsuas yog li ntawm 1/3 ntawm cov khoom siv tooj liab, thiab qhov chaw tom qab ua tiav yooj yim rau kev tuav.
Txawm li cas los xij, vim nws qhov nyuaj dua, qhov hnav ntawm cov cuab yeej thaum txiav yuav loj dua me ntsis dua li ntawm cov cuab yeej txiav hlau.
Tib lub sijhawm, cov ntaub ntawv uas muaj kev nyuaj siab muaj kev tswj hwm zoo dua ntawm kev poob tawm.
Hauv peb lub tshuab EDM, muaj ob yam khoom siv los xaiv rau cov khoom siv ntawm tib qhov loj me uas siv ntau zaus, ib qho nrog qhov nyuaj dua thiab lwm qhov nrog qhov nyuaj qis dua kom tau raws li qhov xav tau ntawm cov neeg siv khoom uas muaj ntau yam kev xav tau.
kev thov.
Piv txwv li: cov ntaub ntawv uas muaj qhov nruab nrab ntawm 5μm suav nrog ISO-63 thiab TTK-50; cov ntaub ntawv uas muaj qhov nruab nrab ntawm 4μm suav nrog TTK-4 thiab TTK-5; cov ntaub ntawv uas muaj qhov nruab nrab ntawm 2μm suav nrog TTK-8 thiab TTK-9.
Feem ntau xav txog qhov kev nyiam ntawm ntau hom neeg siv khoom rau kev tso tawm hluav taws xob thiab kev siv tshuab.
4. Qhov kev tiv thaiv sab hauv ntawm cov khoom siv
Raws li peb lub tuam txhab cov ntaub ntawv txheeb cais ntawm cov yam ntxwv ntawm cov ntaub ntawv, yog tias cov khoom nruab nrab ntawm cov ntaub ntawv zoo ib yam, qhov ceev ntawm kev tso tawm nrog qhov tsis kam siab dua yuav qeeb dua li qhov tsis kam qis dua.
Rau cov ntaub ntawv uas muaj qhov loj me me tib yam, cov ntaub ntawv uas tsis tshua muaj zog yuav muaj lub zog thiab qhov nyuaj qis dua li cov ntaub ntawv uas muaj zog siab.
Qhov ntawd yog, qhov ceev ntawm kev tso tawm thiab kev poob yuav txawv.
Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tsum xaiv cov ntaub ntawv raws li qhov xav tau tiag tiag.
Vim yog qhov tshwj xeeb ntawm cov hmoov metallurgy, txhua qhov parameter ntawm txhua pawg khoom muaj qee qhov kev hloov pauv ntawm nws tus nqi sawv cev.
Txawm li cas los xij, cov teebmeem tso tawm ntawm cov ntaub ntawv graphite ntawm tib qib zoo sib xws heev, thiab qhov sib txawv ntawm cov teebmeem thov vim muaj ntau yam kev ntsuas yog me heev.
Qhov kev xaiv cov khoom siv electrode muaj feem cuam tshuam ncaj qha rau qhov cuam tshuam ntawm qhov kev tso tawm. Feem ntau, seb qhov kev xaiv cov khoom siv puas tsim nyog txiav txim siab qhov xwm txheej kawg ntawm qhov ceev ntawm qhov tso tawm, qhov tseeb ntawm kev ua haujlwm thiab qhov roughness ntawm qhov chaw.
Plaub hom ntaub ntawv no sawv cev rau qhov kev ua tau zoo ntawm cov khoom siv thiab txiav txim siab ncaj qha rau qhov kev ua tau zoo ntawm cov khoom siv.
Lub sijhawm tshaj tawm: Lub Peb Hlis-08-2021