Loj sandblasting chav
Cov chav loj loj - nplai sandblasting yog qhov tseem ceeb ntawm cov khoom hnyav - cov khoom siv kho qhov chaw hauv thaj chaw muaj kev lag luam, dav siv rau kev tu kom zoo thiab zoo ib yam thiab ua ntej - kho cov khoom loj thiab hnyav. Hauv qab no, kuv yuav muab rau koj nrog kev tshuaj xyuas zoo los ntawm ob yam: daim ntawv thov thiab kev siv txuj ci.
I. Daim ntawv thov tseem ceeb Fields loj - teev Sandblasting Chav
Lub luag haujlwm tseem ceeb ntawm chav sandblasting loj yog los ntxuav thiab txo kev ntxhov siab, muab lub hauv paus zoo tagnrho rau cov txheej txheem tom ntej xws li txau, txheej, thiab kev sib txuas.
Steel qauv thiab kev tsim kho teb
Txuas hniav, chaw nres tsheb fais fab, thiab lub tank cia: Tshem tawm cov nplai, xeb, thiab cov txheej qub kom ua tiav qib kev huv ntawm Sa2.0-2.5 lossis siab dua.
Standardized pretreatment ntawm lub tsev steel lug thiab H-beams ua ntej spraying anti-corrosion los yog fireproof txheej.
Nkoj thiab Ocean Engineering
Cov seem, cov lawj thiab cov cabins: loj- tshem tawm xeb thiab tshem tawm cov xim qub.
Offshore platforms thiab lub tshuab tsho: Tiv thaiv- kev tiv thaiv corrosion rau qhov hnyav Marine ib puag ncig.
Kev thauj mus los
Kev tu qhov chaw rau kev kho qhov loj lossis kev tsim kho tshiab ntawm cov tsheb ciav hlau thiab cov tsheb thauj khoom (tshwj xeeb tshaj yog tsheb tank).
Cov tsheb loj thav duab, cov khoom siv ntawm kev tsim kho tshuab: xws li excavators, crane booms, thiab lwm yam.
Lub zog thiab cov cuab yeej hnyav
Kev xuab zeb ntawm cov phab ntsa sab hauv thiab sab nrauv ntawm lub zog tsim hluav taws xob yog cov txheej txheem tseem ceeb hauv kev tiv thaiv -corrosion txheej.
Cov hlab ntsha siab, boilers, thiab cov khoom siv tshuaj: Weld seam tu, sab hauv phab ntsa oxide tshem tawm, thiab txhim kho kev qaug zog.
Loj castings thiab forgings: Tshem cov xuab zeb nplej thiab oxide nplai kom nthuav tawm qhov tsis xws luag.
Aerospace
Cov khoom siv dav hlau, foob pob ua ntxaij casings: Ua ntej-kev kho mob rau kev ntxhov siab, ntxiv dag zog lossis kev sib txuas ntawm cov khoom tshwj xeeb.
Ii. Cov kev txawj siv tseem ceeb thiab cov kev coj ua zoo tshaj plaws ntawm Loj - nplai Sandblasting Chav
Kev siv kom raug thiab kev saib xyuas yog lub hauv paus rau kev ua kom muaj txiaj ntsig, kev lag luam thiab kev nyab xeeb ntawm chav sandblasting.
(1) Kev npaj thiab npaj ua ntej ua haujlwm
Workpiece layout thiab hoisting
Npaj txoj kev nkag thiab tawm ntawm lub workpiece thiab kev sib hloov / txav chaw thaum lub sij hawm sandblasting kom ntseeg tau tias txhua qhov chaw tuaj yeem npog tau zoo.
Rau ntxiv - cov khoom siv ntev (xws li lub tog raj kheej ntauwd), nws yog ib qho tsim nyog yuav tsum koom tes nrog cov tsheb ciav hlau sab hauv tsev thiab cov xuab zeb trolleys rau segmented sandblasting.
Ua kom tag nrho ntawm qhov siab ntawm chav sandblasting thiab txais yuav ntau- txheej txheem ncua kev kawm los tuav cov khoom me me, yog li txhim kho qhov chaw siv qhov chaw.
Abrasive xaiv thiab npaj
Xaiv raws li cov txheej txheem xav tau:
Hlau abrasives (cam khwb cia hlau xuab zeb, hlau txiav txhaj tshuaj): siab hardness, ntev kev pab cuam lub neej, recyclable, haum rau ntxiv dag zog rau kev kho mob thiab kev tshem tawm xeb.
Tsis yog -hlau abrasives (xim av corundum, quartz xuab zeb, garnet): Lawv muaj hardness dua thiab muaj zog txiav quab yuam, thiab yog haum rau harder xeb txheej los yog nto kho pob zeb. Txawm li cas los xij, lawv tsim cov hmoov av ntau thiab hnav sai sai.
Thaum siv cov abrasives tshiab thawj zaug, lawv yuav tsum tau mus rau lub voj voog "khiav" kom tshem tawm cov plua plav thiab cov khib nyiab hauv lawv.
Abrasive mixing: Kev siv cov tshiab thiab qub abrasives nyob rau hauv ib qho kev faib ua feem (xws li 3: 7) tsis tau tsuas yog xyuas kom meej txiav efficiency tab sis kuj txo nqi.
(2) Cov txheej txheem tseem ceeb hauv cov txheej txheem sandblasting
Cua siab thiab ntws tswj
Cua siab ua hauj lwm raws li lub hwj chim qhov chaw: feem ntau, kev ua hauj lwm siab yuav tsum tau tswj ntawm 0.6 thiab 0.8 MPa. Tsis tshua muaj siab ua rau tsis muaj kev tu kom zoo. Lub siab ntau dhau tuaj yeem ua rau cov khoom tawg yooj yim, ua kom cov khoom hnav thiab tsim kua muag, thiab cov khoom ua haujlwm kuj tuaj yeem deform.
Flow tus nqi yog tus yuam sij rau kev ua tau zoo: Kho lub abrasive valve kom ntseeg tau tias cov khoom tsis sib xws thiab tsis tu ncua. Cov dej tsis ruaj khov tuaj yeem ua rau qhov tsis sib xws ntawm qhov roughness.
Cov txheej txheem ua haujlwm ntawm rab phom
Lub kaum sab xis: Cov phom txau feem ntau yog ntawm lub kaum sab xis ntawm 70℃mus rau 80℃rau saum npoo ntawm qhov chaw ua haujlwm (nws yog txwv tsis pub tshuaj tsuag ntawm lub kaum sab xis ntawm 90 degree, vim tias nws yuav ua rau muaj qhov tob tob). Rau qhov chaw yooj yim los yog nyias daim hlau, lub kaum sab xis tuaj yeem me dua.
Kev ncua deb: Nws yog feem ntau khaws cia ntawm 300 thiab 700 hli. Qhov kev ncua deb yog ze dhau, ua rau muaj kev hnav hnyav hnyav thiab roughness loj. Qhov kev ncua deb dhau lawm, lub zog poob thiab kev ua haujlwm tsawg.
Kev txav ceev thiab kev sib tw: Ua kom ruaj khov thiab tsis sib xws ntawm kev txav nrawm, thiab siv qhov sib tshooj lossis ntev sib tshooj cheb (nrog rau qhov sib tshooj ntawm li 1/3) kom tsis txhob muaj kev cuam tshuam los yog hauv zos overspraying.
Visual piv txwv
Siv ISO 8501-1 lossis SSPC-Vis cov qauv qauv txhua lub sijhawm los sib piv cov qib kev huv tom qab sandblasting (xws li Sa 2.0, Sa 3).
Siv lub roughness sib piv los yog replication daim kab xev los ntsuam xyuas qhov profile nto (roughness) kom nws ua tau raws li cov txheej txheem txheej (feem ntau 50-100 microns).
(3) Cov khoom siv tu thiab kev ua kom zoo dua qub
Cov plua plav tshem tawm qhov system yog qhov lifeline:
Txhua hnub: Tshawb xyuas qhov sib txawv ntawm lub lim cartridge / lim hnab thiab ntxuav cov tshauv hauv lub sijhawm.
Tsis tu ncua: Xyuas seb lub tshuab hluav taws xob rov qab ua haujlwm puas ua haujlwm kom ntseeg tau tias cov plua plav tshem tawm tau zoo. Kev tshem tawm cov plua plav ua tsis tiav tuaj yeem ua rau pom qhov tsis tshua pom, uas ua rau muaj kev phom sij rau kev noj qab haus huv thiab cuam tshuam rau qhov zoo ntawm sandblasting.
Abrasive rov qab thiab sorting system
Tsis tu ncua tshuaj xyuas cov scraper conveyor thiab ntxuav cov khib nyiab ntawm qhov screen kom tsis txhob txhaws.
Txheeb xyuas qhov sib nqus quab yuam ntawm cov khoom sib nqus (yog siv cov hlau abrasives) kom ntseeg tau tias cov plua plav, khib nyiab thiab cov khoom siv tau tuaj yeem sib cais tau zoo.
Cov plua plav thiab cov khoom zoo yuav tsum tau muab tshem tawm kom huv si los ntawm kev rov ua haujlwm tsis tu ncua. Lawv yog cov laj thawj tseem ceeb ntawm kev txo cov xuab zeb blasting efficiency thiab cov khoom siv hnav.
Txau phom thiab hnav- qhov chaw tiv taus
Tsim kom muaj ib qho kev hloov pauv tsis tu ncua, tshwj xeeb tshaj yog rau hnav- cov khoom tiv taus xws li cov nozzles, cov kav dej xuab zeb, thiab cov raj Venturi. Hnav nozzles tuaj yeem ua rau deformed abrasive txaus, txo efficiency ntau tshaj 20%.
Nozzles ua los ntawm super- cov ntaub ntawv nyuaj xws li ceramic los yog boron carbide muaj lub neej ntev dua li cov khoom ua los ntawm tungsten carbide zoo tib yam.
(4) Kev nyab xeeb thiab kev tiv thaiv ib puag ncig
Kev tiv thaiv neeg ua haujlwm
Cov neeg ua haujlwm yuav tsum hnav khaub ncaws tiv thaiv sandblasting (nrog rau lub kaus mom hlau sab nraud), hnyav - hnab looj tes thiab khau kev nyab xeeb.
Xyuas kom meej tias huab cua muab rau cov khaub ncaws tiv thaiv yog huv si, qhuav thiab txaus compressed cua.
Environmental tswj
Tuav lub siab me ntsis hauv chav sandblasting kom tsis txhob muaj plua plav tawm.
Thaum ntxuav aluminium alloy thiab magnesium alloy qhov chaw, cov ntaub ntawv siv yuav tsum yog tawg- pov thawj.
Tsim kom muaj thaj chaw nyab xeeb thiab thaj chaw ua haujlwm, thiab cov neeg ua haujlwm tsis yog - raug txwv tsis pub nkag mus.
Kev pov tseg pov tseg
Cov plua plav thiab cov khib nyiab pov tseg yuav tsum raug kho raws li cov khoom siv khib nyiab thiab pov tseg raws li kev tiv thaiv ib puag ncig hauv zos, tshwj xeeb tshaj yog thaum lawv muaj cov hlau hnyav lossis cov xim qub.
Cov ntsiab lus
Kev siv tau zoo ntawm cov loj - nplai sandblasting chav tuaj yeem sau tau raws li:
Ua ntej- kev npaj: tsim nyog layout thiab xaiv qhov zoo abrasive.
Kev tswj cov txheej txheem: Ua kom lub siab ruaj khov, tswj tus nqi ntws, ua haujlwm zoo, thiab ua kom sib piv ntau zaus.
Kev tu thiab lav: kev tiv thaiv plua plav, rov ua dua tshiab, thiab hloov cov hnav- cov khoom tiv taus.
Cov kab hauv qab kev nyab xeeb: kev tiv thaiv nruj, tswj tsis zoo siab, thiab pov tseg cov khoom pov tseg kom raug.
Los ntawm kev ua raws li cov hauv paus ntsiab lus thiab cov tswv yim no, tsis yog tsuas yog tuaj yeem ua tau zoo ntawm sandblasting thiab kev ua haujlwm ntawm cov khoom tsim tau zoo, tab sis kuj tseem siv cov khoom siv abrasives thiab cov cuab yeej tu cov nqi tuaj yeem txo qis, ua kom muaj kev nyab xeeb thiab kev nyab xeeb ntawm kev ua haujlwm.
