Tej zaum koj yuav tsis ntseeg, tab sis lub lim tiam dhau los thaum kuv mus ntsib ib tug neeg siv khoom qub uas ua cov hlau, kuv hnov lub suab "hiss" sai li sai tau thaum kuv nkag mus rau hauv lub chaw ua haujlwm. Thaum saib ze dua, ntau tus neeg ua haujlwm ua haujlwm nrog cov phom xuab zeb, cov hluav taws xob ya thaum cov khoom siv abrasive ntaus cov hlau. Tus thawj coj, Old Li, pom kuv thiab co taub hau, taw rau lub hnab ntawm cov xim av fused alumina abrasive hauv av: "Cov khoom no yog mob taub hau tiag tiag rau siv. Nws tsim ntau plua plav, thiab kev hnav thiab tsim kua muag yog sai. Cov neeg ua haujlwm tsis nyiam ua txoj haujlwm no."
Kuv zaum hauv av, tuav ib txhais tes ntawm covdawb fused aluminaqauv uas peb coj los, thiab muab tso rau hauv nws txhais tes: "Sim qhov no?" Peb hnub tom qab, Old Li hu rau kuv: "Ua li cas rau koj cov xuab zeb dawb fused alumina? Tsis yog tsuas yog qhov ua tau zoo dua xwb, tab sis qhov pom kev hauv lub chaw ua haujlwm zoo dua!" Qhov tseeb, hauv kev lag luam kho qhov chaw, kev xaiv cov xuab zeb abrasive zoo zoo li tus kws ua zaub mov xaiv riam zoo - nws ua rau txhua qhov sib txawv. Hnub no, cia peb tham txog cov xuab zeb dawb fused alumina, nws cov txiaj ntsig zoo tshaj plaws, thiab qhov twg nws tuaj yeem siv rau hauv txoj kev uas koj yuav thiab tej zaum yuav tsis xav tau.
I. Cia peb tham txog cov khoom siv nws tus kheej: Dawb Fused Alumina
Alumina dawb fused, hais yooj yim xwb, yog ib yam khoom tsim los ntawm kev yaj thiab rov ua dua cov bauxite zoo hauv lub cub hluav taws xob arc ntawm qhov kub siab tshaj 2000 ° C. Nws cov khoom tseem ceeb yog α-alumina, nrog rau qhov huv ntawm ntau dua 99%. Muaj ib zaj lus hais qub hauv peb txoj kev lag luam: "Alumina dawb fused, ib lub txiv ntoo tawv rau tawg," hais txog nws qhov Mohs hardness ntawm 9.0, thib ob tsuas yog pob zeb diamond. Qhov purity siab thiab hardness no ua rau nws yog ib yam khoom zoo tagnrho rau "cov haujlwm nyuaj" xws li sandblasting.
Muaj ntau lub tuam txhab tsim khoom uas kuv tau ntsib thaum xub thawj xav tias kev siv xuab zeb los ua kom cov khoom sib tsoo zoo ib yam, txawm tias yog cov khoom sib tsoo li cas los xij. Tab sis lawv tsuas paub tom qab siv nws tias kev xaiv cov khoom sib tsoo ncaj qha txiav txim siab qhov txiaj ntsig kawg thiab tus nqi tag nrho. Nws zoo li txiav nqaij nrog riam ntse piv rau riam ntse; lawv ob leeg txiav, tab sis qhov sib txawv loj heev.
II. Tsib Qhov Zoo Tseem Ceeb ntawm Dawb Fused Alumina Sandblasting
Ua ntej, nws ruaj khov heev thiab kav ntev.
Nrog rau qhov ib txwm muajxim av fused alumina sandblasting, koj yuav tsum tau rov ua cov khoom siv ntau zaus, thiab cov hmoov av tuab heev uas koj tsis pom dab tsi. Dawb fused alumina muaj nqis heev rau nws qhov nyuaj siab thiab zoo heev toughness, ua rau nws tiv taus kev tawg thaum lub sijhawm cuam tshuam. Peb tau ua qhov kev sim sib piv, thiab nyob rau hauv tib lub siab thiab cov xwm txheej ua haujlwm, kev siv dawb fused alumina yog 30% -40% tsawg dua li xim av fused alumina. Tsis txhob saib tsis taus tus lej no; rau cov chaw tsim khoom loj uas siv ntau tons ntawm cov ntaub ntawv abrasive ib hnub, cov nyiaj txuag tau hauv ib xyoos yog txaus los yuav lub tsheb zoo.
Qhov thib ob, nws ua haujlwm tau zoo thiab sai.
Cov khoom me me ntawm alumina dawb fused muaj cov duab zoo li qub, feem ntau yog cov duab polygons ntse. Thaum projecting ntawm qhov ceev ceev, cov duab no ua haujlwm zoo li ntau yam cuab yeej txiav me me, muab kev muaj peev xwm txiav zoo heev. Rau kev ntxuav tib thaj chaw ntawm castings, dawb fused alumina tuaj yeem txuag tau yuav luag ib nrab ntawm lub sijhawm piv rau cov xuab zeb quartz ib txwm muaj. Old Wang lub foundry hloov mus rau dawb fused alumina xyoo tas los, thiab cov txheej txheem sandblasting, uas yav dhau los xav tau peb lub sijhawm ua haujlwm, tam sim no tuaj yeem ua tiav hauv ob lub sijhawm ua haujlwm, txuag tau ntau yam ntawm cov nqi zog ua haujlwm.
Qhov thib peb, nws tsim cov txiaj ntsig zoo nrog qhov zoo sib xws.
Kev siv xuab zeb tsis yog tsuas yog ceev xwb tab sis kuj tseem zoo. Qhov saum npoo blasted nrogdawb fused alumina muaj qhov roughness sib xws thiab tsis qhia qhov tsis sib xws. Tshwj xeeb tshaj yog rau cov workpieces uas xav tau ntau xws li stainless hlau thiab aluminium alloys, dawb fused alumina sandblasting ua rau muaj qhov sib npaug matte nyiaj-dawb nto, tsis muaj cov khoom tsis huv, muab lub hauv paus zoo meej rau kev pleev xim thiab electroplating tom qab. Ib tug ntawm peb cov neeg siv khoom, tus tsim khoom siv hauv chav ua noj zoo, pom kev txhim kho zoo hauv qhov zoo ntawm cov khoom tom qab hloov mus rau dawb fused alumina sandblasting, ua rau 30% nce ntxiv hauv kev txiav txim xa khoom.
Qhov thib plaub, nws yog ib qho kev xaiv "phooj ywg ib puag ncig".
Txhua tus neeg paub tias cov cai ib puag ncig nruj npaum li cas tam sim no.Dawb fused aluminaKev siv xuab zeb ua rau muaj hmoov av tsawg dua li ntau lwm yam khoom siv abrasives. Ua ntej, nws qhov kev ntshiab siab thiab zoo ua rau muaj hmoov av tsawg dua uas ua pa tau; qhov thib ob, nws lub zog ua rau siv tau ntau zaus, txo cov pa phem tag nrho. Ntxiv mus, alumina dawb fused tsis muaj silica dawb, tiv thaiv silicosis, ua rau cov neeg ua haujlwm muaj kev thaj yeeb nyab xeeb. Txij li thaum Old Li lub chaw ua haujlwm hloov mus rau alumina dawb fused, qhov zaus ntawm kev hloov cov hnab lim plua plav tau txo qis los ntawm ib hlis ib zaug mus rau ib zaug txhua peb lub hlis, uas sawv cev rau kev txo nqi tiag tiag.
Qhov thib tsib, nws muaj "kev siv tau dav."
Txij li cov cuab yeej kho mob uas meej tshaj plaws mus rau cov hlau loj loj, kev siv xuab zeb dawb fused alumina tuaj yeem ua tau txhua yam. Tsis zoo li qee cov khoom siv abrasives tshwj xeeb, nws tsis yog "me me." Los ntawm kev kho qhov loj ntawm cov xuab zeb (los ntawm ntxhib 16 mesh mus rau zoo 240 mesh lossis txawm tias zoo dua) thiab lub zog blasting, nws tuaj yeem ua tau ob qho tib si kev ntxuav hnyav thiab kev ua tiav zoo. Qhov kev ywj pheej no ua rau nws yog "kev ua tau ntau yam" hauv ntau lub Hoobkas.
III. Qhov twg siv tau cov tshuaj alumina dawb fused?
Tom qab tham txog nws cov txiaj ntsig ntau yam, cia peb saib seb nws siv tau rau qhov twg:
1. Kev lag luam aerospace: Ib tug sawv cev ntawm "high-tech thiab precision"
Cov hniav ntawm lub cav dav hlau, cov iav tsaws, thiab ntau yam khoom siv avionics muaj qhov xav tau kev kho qhov chaw uas nyuaj heev. Kev tua alumina dawb feem ntau ua ob txoj haujlwm ntawm no: thawj zaug, tshem tawm cov khaubncaws sab nraud povtseg oxide thiab cov qhov tsis zoo me me ntawm qhov chaw ntawm cov khoom; qhov thib ob, tsim kom muaj txheej txheem kev ntxhov siab sib xws los txhim kho lub neej qaug zog ntawm cov khoom. Kuv tau mus xyuas lub tuam txhab uas kho cov dav hlau, thiab lawv tsuas yog siv alumina dawb fused rau qhov zoo tshaj plaws.
2. Kev tsim khoom thiab kho tsheb: Lub zog loj hauv kev lag luam loj thiab ntau haiv neeg
Txij li kev ntxuav thiab ua kom lub cav muaj zog, crankshafts, thiab iav hauv cov tsheb tshiab, mus rau kev tshem tawm xeb thiab pleev xim thaum lub sijhawm kho dua tshiab ntawm cov tsheb qub, alumina dawb fused yog qhov kev xaiv zoo tshaj plaws. Tshwj xeeb tshaj yog rau cov tais roj teeb aluminium alloy thiab cov tsev cav ntawm cov tsheb fais fab tshiab, uas muaj cov kev cai nruj rau kev huv ntawm qhov chaw thiab qhov ntxhib, qhov zoo ntawm kev tua alumina dawb fused yog qhov pom tseeb dua.
3. Kev lag luam pwm: "Kev ua kom zoo nkauj" thiab "txuas lub neej" ntawm cov pwm
Cov pwm txhaj tshuaj, cov pwm tuag-casting, thiab cov pwm iav khaws cov khawb me me, cov pa roj carbon, lossis cov khoom seem dhau sijhawm. Cov hmoov av dawb fused alumina blasting zoo tuaj yeem kho cov qhov tsis zoo me me no, tshem tawm cov khoom seem, thiab tsim cov qauv nto sib xws uas pab txhawb kev rhuav tshem yam tsis hloov pauv qhov tseeb. Ntau tus neeg ua pwm paub dhau los hais tias kev saib xyuas tsis tu ncua nrog cov hmoov av dawb fused alumina blasting tuaj yeem ntev lub neej pwm los ntawm ib feem peb.
4. Cov khoom siv hlau tsis xeb thiab kev tsim kho kom zoo nkauj: Nws yog txhua yam hais txog "kev zoo nkauj"
Txawm nws yog cov txee hlau stainless hlau zoo tshaj plaws, cov vaj huam sib luag ntawm lub tshuab nqa, lossis kev tsim cov phab ntsa thiab cov duab puab, qhov tiav matte tab tom nrov zuj zus. Kev tua hluav taws dawb fused alumina tuaj yeem muab ntau yam kev kho kom zoo nkauj uas tuaj yeem tswj tau, los ntawm cov qauv zoo nkauj mus rau qhov tiav matte sib xws, thiab cov teebmeem yog kav ntev, tsis zoo li cov tshuaj etching uas tuaj yeem ua rau muaj cov txiaj ntsig tsis sib xws.
5. Kev Tsim Nkoj thiab Kev Lag Luam Hnyav: Kev Tawm Tsam Cov "Cov Neeg Loj"
Cov lawj nkoj, cov choj hlau loj, thiab cov thoob dej cia khoom - cov qauv loj no xav tau kev tshem tawm xeb kom huv si thiab kev nplaum zoo heev.Dawb fused alumina, nrog nws cov peev xwm ntxuav tau zoo thiab tus nqi nruab nrab, tuav txoj haujlwm ruaj khov hauv daim teb no. Tshwj xeeb tshaj yog hauv kev kho nkoj, qhov twg thaj chaw loj ntawm lub hull yuav tsum tau ntxuav hauv lub sijhawm luv luv, qhov zoo ntawm kev ua haujlwm ntawm alumina dawb fused yog qhov tsis tuaj yeem hloov pauv.
6. Qee Cov Ntawv Thov Tsis Tau Xav Txog
Piv txwv li, kev ntxuav thiab kho dua cov pob zeb ntawm cov cim keeb kwm, alumina dawb fused tuaj yeem tshem tawm cov av nkos yam tsis ua rau puas tsuaj rau cov khoom qub; hauv kev lag luam semiconductor, nws siv rau kev ntxuav tsis tu ncua ntawm qee lub nkoj wafer; thiab txawm tias hauv kev ua haujlwm ntoo siab, nws siv los tsim cov qauv tshwj xeeb ntawm cov ntoo tawv.
IV. Tej yam yuav tsum nco ntsoov thaum siv nws
Tau kawg, alumina dawb fused tsis yog "kho txhua yam," thiab nws qhov txiaj ntsig siab tshaj plaws tsuas yog ua tiav thaum siv kom raug. Nov yog ob peb lub tswv yim: Rau cov ntaub ntawv mos mos tshwj xeeb (xws li qee cov hlau tsis yog ferrous thiab plastics), ua tib zoo xaiv qhov loj me thiab siab kom tsis txhob txiav ntau dhau. Cov khoom siv blasting yuav tsum tau phim, thiab lub kaw lus rov ua dua tshiab zoo yog qhov tseem ceeb kom siv nws cov txiaj ntsig rov ua dua tshiab thiab txo cov nqi. Txawm hais tias nws yog tus phooj ywg ib puag ncig, cov khoom siv tiv thaiv tus kheej tseem tsim nyog; tsom iav kev nyab xeeb, lub ntsej muag plua plav, thiab cov khaub ncaws ua haujlwm tshaj lij yog qhov tseem ceeb.