Cov Teeb Meem Mob ntawm Kev Ua Pwm Polishing
Txhua tus neeg uas tau ua haujlwm hauv kev lag luam pwm tau ntau tshaj kaum xyoo paub tias thaum kev txhuam zoo li yooj yim, nws yeej nyuaj heev. Ntau tus neeg tsim pwm pom tias cov txheej txheem txhuam yog qhov nyuaj tshaj plaws - nws siv sijhawm ntau, cov txiaj ntsig tsis sib xws, thiab nws nyob ntawm qhov kev paub ntawm tus kws tshaj lij. Qhov no yog qhov tseeb tshwj xeeb tam sim no, nrog rau ntau yam khoom siv pwm, los ntawm cov hlau P20 ib txwm mus rau qhov siab-hardness S136, thiab txawm tias cov khoom siv cemented carbide thiab ceramic. Cov khoom siv txhuam ib txwm thiab cov txheej txheem feem ntau tsis ua tiav. Tus thawj coj ntawm lub Hoobkas txhuam ntawm lub Hoobkas pwm precision hauv Shenzhen tau hais rau kuv tias, "Yav dhau los, peb siv boron carbide thiab hmoov pob zeb diamond, uas ua haujlwm zoo, tab sis tus nqi siab dhau; ntau lub Hoobkas me me tsuas yog tsis tuaj yeem them taus nws. Hmoov corundum ib txwm muaj feem yuav khawb, thiab qee zaum, tom qab txhuam, nyob rau hauv qee qhov teeb pom kev zoo, tseem muaj cov cim tsis meej."
Cov "Zoo Tshaj Plaws" ntawm Dawb Fused Alumina Micro-hmoov
Qhov laj thawjdawb fused alumina micro-hmoovua tau zoo heev hauv kev txhuam pwm yog txiav txim siab los ntawm nws "kev tsim cov noob caj noob ces." Nws cov khoom tseem ceeb yog α-aluminum oxide, nrog rau qhov huv ntawm ntau dua 99%. Qhov kev huv no txhais li cas? Nws txhais tau tias tsawg dua cov khoom tsis huv, ua rau nws tsis tshua muaj peev xwm ua rau muaj kev khawb tsis raug thaum lub sijhawm txhuam. Nws zoo li xuab ntoo nrog cov ntawv xuab zeb zoo; yog tias daim ntawv xuab zeb muaj ob peb lub noob ntxhib, qhov chaw yuav puas tsuaj. Lwm qhov zoo ntawm kev huv siab yog qhov nyuaj sib xws. Dawb fused alumina muaj Mohs hardness ntawm 9.0, thib ob tsuas yog pob zeb diamond thiab silicon carbide, tab sis nws qhov zoo dua nyob rau hauv qhov sib xws ntawm nws qhov nyuaj. Cov neeg ua polishing nkag siab tias yog tias cov khoom abrasive muaj qhov nyuaj tsis sib xws, cov khoom mos dua raug noj ua ntej, thiab cov khoom tawv dua tawm, yooj yim ua rau khawb. Dawb fused alumina micro-hmoov ua tau zoo heev "uniformly" hauv qhov no.
Lub Tswv Yim ntawm Particle Morphology
Xyoo tas los, kuv tau mus xyuas lub Hoobkas tsim cov hmoov alumina dawb fused hauv Jiangsu, thiab tus thawj tswj hwm kev tshaj lij tau qhia kuv ib daim duab sib piv hauv qab lub tshuab hluav taws xob: "Saib, qhov no yogdawb fused alumina micro-hmoov peb tsim tawm; cov khoom me me feem ntau yog hexagonal lossis yuav luag spherical, thiab cov npoo tau kho tshwj xeeb kom ua puag ncig. Cov hmoov alumina xim av fused micro-hmoov, ntawm qhov tod tes, muaj cov duab tsis sib xws thiab cov npoo ntse. "Qhov sib txawv no tseem ceeb heev hauv kev txhuam pwm. Thaum cov npoo ntse muab lub zog txiav muaj zog, lawv yooj yim ua rau khawb; cov khoom puag ncig, ntawm qhov tod tes, ua zoo li "dov thiab sib tsoo" dua li "txiav," ua rau lawv tsim nyog rau kev txhuam pwm uas xav tau qhov chaw tiav siab heev. Qhov zoo ntawm cov khoom puag ncig yog qhov pom tseeb dua thaum txhuam cov chaw nyuaj mus txog xws li cov nto nkhaus thiab cov ces kaum sab hauv.
Kev Kos Duab ntawm Kev Tswj Qhov Loj ntawm Cov Khoom Me Me
Hmoov dawb corundum me me ua tiav qib zoo kawg nkaus ntawm kev tswj qhov loj me ntawm cov khoom me me. Cov khoom siv txhuam polishing ib txwm muaj feem piav qhia tias yog "2000 mesh" lossis "3000 mesh," tab sis qhov tseeb, qhov kev faib tawm ntawm cov khoom me me tuaj yeem yog txij li 1500 mesh txog 3500 mesh. Txawm li cas los xij, cov hmoov dawb corundum zoo tuaj yeem ua tiav qhov kev faib tawm ntawm cov khoom me me. Piv txwv li, cov khoom muaj npe W7 (sib npaug rau 2500 mesh) yuav muaj ntau dua 95% ntawm nws cov khoom me me hauv W6.5-W7.5.
Qhov kev faib cov khoom me me uas me me rau kev txhuam pwm tseem ceeb npaum li cas? Xav txog kev lim cov mov nrog lub lim; yog tias cov nplej loj sib npaug, cov txheej txheem lim yuav du; yog tias lawv muaj ntau qhov loj sib txawv, cov nplej me dua yuav txhaws cov qhov lim. Tib lub hauv paus ntsiab lus no siv rau kev txhuam. Hmoov me me uas muaj qhov loj sib npaug ua kom muaj kev txiav sib xws thaum lub sijhawm txhuam, tiv thaiv cov xwm txheej uas qee qhov chaw raug txhuam ntau dhau thaum lwm qhov tsis raug txhuam txaus.
Kev Ua Tau Zoo Hauv Kev Siv Ua Haujlwm
Ib lub tuam txhab hauv Guangzhou uas tsim cov pwm ntim khoom kom zoo nkauj yav dhau los yuav tsum tau siv sijhawm 35 teev los txhuam cov pwm raj mis zoo nkauj. Tom qab hloov mus siv cov hmoov corundum dawb, lub sijhawm tau txo qis rau 22 teev. Lawv tus kws txhuam hniav hais rau kuv tias, "Yav dhau los, peb yuav tsum ceev faj heev thaum lub sijhawm kawg ntawm kev txhuam hniav; txawm tias qhov yuam kev me me tuaj yeem ua rau txhuam ntau dhau lossis khawb. Tam sim no, nrog cov hmoov corundum dawb, cov txheej txheem txhuam hniav yooj yim dua los tswj, tshwj xeeb tshaj yog nyob rau theem kawg, qhov twg ob peb lub teeb dhau los txaus kom ua tiav daim iav tiav."
Hauv thaj chaw ntawm lub xov tooj ntawm tes pwm polishing, qhov zoo ntawmdawb corundum micro-hmoovyog qhov pom tseeb dua. Cov xov tooj ntawm tes lub plhaub xav tau qhov chaw tiav siab heev, qee zaum txawm tias qis dua Ra 0.01 micrometers. Ib lub Hoobkas hauv Dongguan tshwj xeeb hauv cov pwm hlau xov tooj ntawm tes tau ua qhov kev sim sib piv: thaum polishing aluminium alloy pwm, siv cov hmoov corundum dawb ua rau 20% txo qis qhov roughness ntawm qhov chaw piv rau cov ntaub ntawv polishing ib txwm muaj, thaum tseem txo lub sijhawm polishing los ntawm 15%. Kev Siv Polishing ntawm Cov Khoom Siv Pwm Tshwj Xeeb
Nrog kev nce qib hauv cov ntaub ntawv pwm, cov ntaub ntawv uas muaj zog thiab tsis yooj yim hnav tau dhau los ua ntau dua, ua rau muaj kev cov nyom tshiab rau kev txhuam. Piv txwv li, cov ntaub ntawv txhuam ib txwm muaj feem tsis zoo thaum siv rau cov ntaub ntawv xws li hmoov hlau ceev ceev thiab cemented carbide. Lub Hoobkas pwm hauv Shanghai ntsib teeb meem thaum ua cov pwm cemented carbide stamping; qhov nyuaj ntawm pwm ncav cuag HRC70, thiab cov ntaub ntawv txhuam ib txwm yuav luag tsis zoo. Tom qab ntawd lawv sim siv cov hmoov corundum dawb nrog cov tshuaj txhuam tshwj xeeb, thiab cov txiaj ntsig zoo heev. Lawv tus thawj coj kev tshaj lij hais tias, "Cov hmoov corundum dawb muaj qhov nyuaj txaus thiab cov khoom siv uas ua rau ntse. Thaum lub sijhawm txhuam, cov npoo txiav tshiab raug nthuav tawm tas li, tswj kev ua haujlwm txhuam."
Cov txiaj ntsig kev lag luam
Ntau tus tswv Hoobkas pwm pib txhawj xeeb txog tus nqi siab ntawmdawb corundumhmoov me me, tab sis saib ze dua qhia tau tias tag nrho cov txiaj ntsig zoo dua. Tus tswv pwm hauv Taizhou, Zhejiang, tau xam tus nqi rau kuv: thawj zaug, kev txhuam ib pawg pwm yas nruab nrab raug nqi li 800 yuan hauv kev ua haujlwm thiab cov khoom siv, siv sijhawm 8 teev; tom qab siv hmoov corundum dawb, txawm hais tias tus nqi khoom siv nce 100 yuan, lub sijhawm tau txo qis rau 5 teev, thiab cov nqi ua haujlwm tau txo qis ntau dua 200 yuan, ua rau tus nqi tag nrho txo qis ntau dua 100 yuan. Ntxiv mus, qhov zoo ntawm qhov chaw ruaj khov dua, thiab cov lus tsis txaus siab ntawm cov neeg siv khoom tau txo qis.
Qhov tseem ceeb tshaj, nws ua rau lub pwm ntev dua. Kev txhuam kom zoo tuaj yeem tshem tawm cov kab nrib pleb me me ntawm qhov chaw pwm thiab txo qhov kev ntxhov siab. Cov ntaub ntawv qhia tau tias cov pwm uas txhuam nrog cov hmoov corundum dawb muaj lub neej ntev dua li 15% -20%. Qhov no muaj nqis heev rau cov pwm uas raug nqi kaum lossis ntau pua txhiab yuan.
Cov Lus Qhia Siv thiab Kev Ceev Faj
Txawm hais tias cov hmoov corundum dawb muaj kev ua tau zoo heev, nws siv yuav tsum muaj cov txheej txheem tshwj xeeb. Ib tug kws tshaj lij los ntawm lub tuam txhab kev pabcuam polishing hauv Qingdao tau qhia qee qhov kev paub:
Kev siv qib yog qhov tseem ceeb. Koj yuav tsum tsis txhob siv tib qhov loj ntawm cov xuab zeb rau ob qho tib si kev txhuam ntxhib thiab zoo; koj yuav tsum maj mam ua raws li qhov "coarse-medium-fine". Piv txwv li, koj tuaj yeem pib nrog W40, maj mam hloov mus rau W10, thiab thaum kawg siv W3.5 lossis hmoov me me rau kev txhuam zoo. Kev xaiv cov khoom siv yog qhov tseem ceeb. Cov hmoov me me corundum dawb yuav tsum tau siv nrog cov tshuaj txhuam polishing lossis cov khoom siv kua. Cov khoom siv roj yog qhov tsim nyog rau kev txhuam hlau, thaum cov khoom siv dej yog qhov tsim nyog dua rau cov hlau tsis yog ferrous. Cov khoom siv tsis yog tsuas yog muab kev ncua thiab lubrication tab sis kuj tshem tawm cov khib nyiab tshem tawm.
Yuav tsum muaj kev nias thiab qhov ceev sib phim. Kev nias polishing siab dua tsis zoo dua tas li; kev nias ntau dhau tuaj yeem ua rau cov khoom me me nkag mus rau hauv qhov chaw ua haujlwm. Feem ntau, qhov loj ntawm cov khoom me me, qhov siab qis dua, thiab qhov ceev tuaj yeem nce ntxiv kom haum. Cov txheej txheem ntxuav tsis tuaj yeem tsis quav ntsej. Txhua zaus qhov loj ntawm cov khoom me me hloov pauv, qhov chaw pwm thiab cov cuab yeej polishing yuav tsum tau ntxuav kom huv si kom tiv thaiv cov khoom loj los ntawm kev sib xyaw rau hauv cov txheej txheem tom ntej. Cov kws tshaj lij paub dhau los yuav siv lub iav tsom iav los xyuas qhov huv tom qab txhua txheej txheem.
Kev Txhim Kho Kev Lag Luam
Raws li kev soj ntsuam los ntawm kev nthuav qhia thiab kev sib pauv txuj ci hauv xyoo tas los no, ntau yam kev hloov pauv tau tshwm sim hauv kev siv cov hmoov alumina dawb hauv kev txhuam pwm: Kev kho kom haum raws li qhov xav tau ntau zuj zus. Ntau lub tuam txhab tsim cov hmoov me me tab tom pib muab cov kev pabcuam "ua raws li qhov xav tau", muab cov piv txwv tshwj xeeb ntawm cov hmoov alumina dawb raws li cov yam ntxwv xws li cov khoom siv pwm, cov khoom siv txhuam, thiab cov kev xav tau ntawm qhov chaw tiav. Qee tus tau tsim cov qauv tshwj xeeb rau ntau hom hlau.
Cov khoom sib xyaw ua ke tau nrov zuj zus. Cov khoom siv txhuam uas sib xyaw ua ke alumina dawb nrog lwm cov ntaub ntawv tau pib tshwm sim, xws lidawb aluminaua ke nrog cerium oxide, sib npaug ntawm lub zog txiav thiab qhov chaw tiav; thiab ua ke nrog pob zeb diamond micro-hmoov rau kev txhuam cov khoom siv tawv heev. Cov khoom lag luam zoo rau ib puag ncig tab tom dhau los ua qhov chaw kub tshiab. Nrog rau kev xav tau ib puag ncig ntau ntxiv, cov khoom siv alumina dawb micro-hmoov uas tsis muaj cov hlau hnyav, tsis muaj plua plav, thiab yooj yim rov ua dua tau txais kev saib xyuas ntau dua. Qee cov chaw tsim khoom tau tsim cov txheej txheem txhuam dej-soluble kom txo qis kev siv cov kuab tshuaj organic.