Hlau surfacing: hom, technology

Cov neeg uas koom nyob rau hauv lub exploitation ntawm qhov sib txawv mechanisms, tej zaum yuav raug tej kev yuav tsum tau ua surfacing rau ntawm qhov chaw ntawm ib qhov chaw. Tawg fasteners, hnav qhov chaw thaum lub sij hawm kev lag luam tej los yog kiag li, lub ntug, lub lov bushing. Txhua yam ntawm cov neeg mob yuav tsum tau tov surfacing khoom siv tshiab nyuaj hlau txheej nyob rau hauv lov feem. Tej kev kho mob yuav tsis tau tsuas yog rov qab, tab sis kuj muab cov ntsiab lus ntawm lub tshiab, ntau nqi zog. Piv txwv li, los ntawm kev ua overlay vuam siv lub carbide txheej rau lub hauv paus ntawm qhov uas tsis muaj cov hlau qhov chaw, yuav tau txais qhov khoom nrog rau cov muaj zog durability los yog lwm yam kev ua tau zoo zog.

Qhov no yog qhov nyuaj, tab sis nyob rau tib lub sij hawm, ib tug siv tau txoj kev no yog tsim tsis tsuas yog rau kev kho tshiab ntawm lub cev muaj zog (kev kawm) los ntawm cov hlau qhov chaw. Los ntawm txhais tau tias ntawm hlau deposition electrode qauv tej zaum yuav hloov los ntawm kev muab nws ib yam nta txhim khu lub zog ntawm cov nto txheej, mus ua hauj lwm nyob rau hauv lub dag lub zog thiab durability.

Nta thiab Terminology: yooj yim lub tswvyim ntawm "surfacing"

Yuav ua li cas yog lub zais cia ntawm no technology, dab tsi nta nws muaj thiab yuav ua li cas los mus siv nws nyob rau hauv lub neej, peb yuav ua tiag kom to taub ua ke. Muaj yees tus nyeem ntawv yog tsis yog xav nyob rau hauv, tshwj xeeb tshaj yog nrog rau kev siv robotic machine. Vim hais tias deal nrog ntxiv hlau deposition yam ntxwv manually, i.e. los ntawm txoj kev vuam electrodes.

Nyob rau hauv lub neej txhua hnub, lub sij hawm hlau tus neeg tej zaum yuav muaj nyob rau hauv view thiab ib tug hlau, piv txwv li, cov hlau. Yog hais tias cov npe no yuav hais lus saib lub ntsab lug, nyob rau hauv kev siv cov technology rau ib hlau / hlau thiab ua hauj lwm zoo cov ntsiab lus txawv.

Xav txog nyob rau hauv kom meej lub npe tsuas tsis yooj yim sua vim hais tias ntawm qhov ntim ntawm lub tswv yim cov ntaub ntawv uas, vim hais tias pib paub nrog cov txheej txheem, ua ntej mus saib kom paub meej txog kev ua hauj lwm nrog hlau hom xaiv. Txhua yam uas peb muab rau koj nyob rau hauv no tsab xov xwm - lub tswv yim pom zoo thaum lub sij hawm lub deposition.

Nyob rau hauv dav dav, lub hlau cladding muaj zoo sib xws rau welding, yuav tsis tiv thaiv kom txhob nyeem qhov tseeb yees siv tau rau cov zauv co thiab alloys xws li tooj liab, txhuas, hlau, steel hlau, thiab lwm tus neeg nyob rau hauv cov nqe lus ntawm lub specifics ntawm lub tswv yim tej hauj lwm.

Los ntawm Vuam hlau compound yog meant ib heterogeneous ua cim los ntawm thov ib tug molten hlau rau ib tug saum npoo ntawm lub lwm yam. Hu ua tus muab tub lim cov ntaub ntawv uas yog thov, lub ntsiab - yog raug nto kev kho mob los ntawm cov qauv ntawm cov hlau deposition.

Technological yam ntxwv ntawm txoj kev

Lub interpenetration ntawm kub hlau mus sib tshwm sim nyob rau hauv lub molecular theem.

Rau lub hom phiaj no, ib tug saum npoo txheej yog rhuab mus rau ib tug yooj yim degree ntawm melting ntawm ib tug ntiav qhov tob thiab dopant mus rau ib tug kua hauv lub xeev.

Los ntawm Vuam hlau cladding zoo xws li cov muaj peev xwm kom tswj tau tus txheej thickness thiab txheej additives nyob rau tshem me me hais txog ntawm nws daim ntawv.

alloy nrog English npe derives los ntawm nws thiab homogeneous compound yog siv raws li ib tug terminology. Lub ntsiab yam ntxwv ntawm alloy muaj xws li muaj zog cia siab rau, vim los ntawm cov neeg kho tshuab impacts yog hlau sib cais mus rau tus thawj lub xeev yog tsis yooj yim sua.

Basic cai sib tshooj

Nyob rau hauv qhov kev tso tawm siv kev cai rau hlau deposition.

Lub qhov tob ntawm lub sab sauv txheej ntawm qhov tseem ceeb ntawm cov yaj yuav tsum tau tsawg heev. Koj muaj peev xwm ua tau qhov no ua rau thaum lub elementary nqes hav ntawm lub electrode ua rau cov sab opposite rau nws cov kev taw qhia ntawm lub zog.

Nrog tsawg heev ntxhov siab hlau ua kev xwm ntawm lub residual kev nyuaj siab yog txo, uas eliminates ntawm cov deformation ntawm lub qhov chaw nyob rau hauv ib co chaw.

Thaum lub sij hawm txoj kev ua raws li tus nqi ntawm cov additives, vim hais tias nws ntau heev yuav ua tau kom mob nyob rau hauv lub neej yav tom ntej kev ua hauj lwm, uas yog nrog los ntawm ntau tshaj zog cov nqi thiab cov deadlines.

Sib tshooj technology siv electrodes

Ua ntej lub chaw ua hauj lwm yog nqa tawm ib yam ua ntej purification ntawm hlau, uas muaj ob kauj ruam: stripping thiab degreasing.

Surfacing hlau electrode - lub feem ntau txoj kev muab ib tug homogeneous txheej. technology simplicity ua rau nws lub qhov kawg nyob rau hauv kev siv thiab nyob rau hauv lub tej yam kev mob ntawm ntau lawm, thiab nyob rau hauv tsev.

Ib electrode nrog ib tug tshwj xeeb txheej yog xaiv raws li nyob rau hauv cov kev kho mob hom phiaj caum. Qhov no kev xaiv kuj yog nyob ntawm lub hom hlau los ntawm uas smelted hauv paus. Nyob ntawm seb lub hom ntawm cov electrode txheej twb tau tsim nyog cov yam ntxwv.

Circuit Court kev twb kev txuas - ncaj qha los yog rov qab. Qhov thib ob variant yog ntau ntau, raws li txawv yooj yim. Mus nqa tawm kev ua hauj lwm tsim nyog DC voltage "+" nyob rau coated electrode.

nta cov txheej txheem

Zoo li tus nta thiab txheej thickness nyob ntawm lub seem ntawm lub electrode. Yuav kom muab zoo naplav, voltage thiab Arc tam sim no yuav tsum tau tsis tshua zoo, tab sis nws yuav tsum tau qhov tseeb kom sib haum. Tswv yim kev txawj ntse yog kawm tau nrog kev kawm txawj thiab yuav tsis ua rau kev khiav hauj lwm nyuaj.

Surfacing: me ntsis secrets

Thaum lub voltage pib nce tsis tau kev txhab rau nyob rau hauv lub ntim thiab dav, yog li ua lub arc ntev. Txhua yam ntawm tus hom electrodes lawv kev siv. Piv txwv li, koj puas paub yuav ua li cas ib qho tseem ceeb nws yog los pre-sov lub foundation? Thaum ua hauj lwm nrog cov uas tsis muaj-haum cev steel raws li xws li ib tug mob yog tsis ib txwm tsim nyog. Nyob rau hauv uas ntawm lub hom yog zoo tshaj plaws kom txias rau ib feem? Thiab yog dab tsi qib ntawm tam sim no cov teeb? Tag nrho cov kev siv technology tshiab ntsiab lus ntawm cladding cim nyob rau hauv lub nrog cov ntaub ntawv rau koj xaiv hom electrodes. Nrog hais txog zoo welding, nws tsub kom nrog cov cua kub kub, uas yog ib qho tseem ceeb rau tag nrho cov hom ntawm electrodes thiab yog kwv yees li sib npaug zos rau + 300 ° C. Nqa tawm kev ua hauj lwm rau Vuam nyob rau hauv tsev, yuav tau tau thermo, piv txwv li, lub fais chamber.

Nta ntshav vuam hlau

Check ze li ntawm unbreakable nyob rau hauv tej siab quab yuam Cheebtsam yog ua los ntawm ntshav deposition. Nrog kev pab los ntawm qhov kev kho no, txhua txhua tus cov khoom uas muaj dhau ntawm txoj kev kis tau tus tsim nyog dielectric, thermal, lub cev thiab lwm yam khoom. Nyob rau hauv lwm yam lus, cov khoom tawv nyob rau hauv tus txheej txheem ntawm welding. hlau txiav, thiab nws ua yog ua los ntawm kev siv ib tug tshwj xeeb cutter nrog kub ntshav txaus.

Cov khoom ua siv ntshav arc welding, txawv coj kuj, Thaum tshav kub kub kuj, acid thiab lwm yam

Piv nrog rau welding los ntawm txoj kev ntshav vuam electrode muaj ib tug xov tooj ntawm zoo, tab sis tsuas yog siv nyob rau hauv ib tug ntau lawm ib puag ncig. Mount ib tug tshwj xeeb installation thiab purchase khoom mus ua hauj lwm nrog xws li chav nyob tom tsev tsawg kawg yog ib qho kim Library. Vim hais tias ib zaug dua xav txog seb puas muaj ib tug yuav tsum tau rau ib lub cuab tam rau cov nrhiav tau ntawm ib tug tsawg siv nyob rau hauv lub tsev los yog muaj ib qho chaw zoo qub daim ntawv thov electrode uas yuav muaj txiaj ntsim nyob rau hauv nyiaj txiag nqe lus, tab sis tsis yog tus phem tshaj kev xaiv.

Fused nqaws thiab lawv hom

Yog xav tau ib tug high-zoo kev pab them nqi ntawm qhov tseem ceeb ntawm lwm alloys, pib tso tom ntej no caws pliav nyob rau sab nraud ntawm qhov khoom. Yog li cladding khaubncaws sab nraud povtseg yog superimposed sequentially (ib tug tom qab lwm) thiab random - ib tug mus rau lwm feem. Cov kev siv ntawm tej hlau deposition technologies yuav pab tsis txhob ib nrab deformation bases thaum overheated.

Fused nqaws nyob rau hauv lub tshuab thiab lub hom phiaj yog muab faib ua ob peb pawg.

Nyob ntawm seb lub hom ntawm cov workpiece siv ib tug ntawm cov schemes cirrhosis qhov chaw:

• ib tug helix tsim los ntawm ib tug homogeneous hlau ntawm chais;
• ib tug xov tooj ntawm lub voj voog ntawm ib tug kaw hom, ua los ntawm ib tug weld caws pliav;
• uas yog nyob raws ntawm txoj kev hlau touches.

Nrog rau cov thawj txoj kev yuav mus ua hauj lwm thaum ua hauj lwm nyob rau hauv tej yam kev mob ntawm mechanized ntau lawm. Vim hais tias mus rau hauv tus txheej txheem no yuav tsis tau. Nrog lwm txoj kev kho mob ntawm tiaj tus thiab peb-dimensional qhov chaw kom huv si ntsib los ntawm tshuaj ntsuam lawv tseem, thiab cheeb tsam ntawm daim ntawv thov.

Stitches tiaj chaw

Thaum ua dav hlau siv ib tug ntawm cov hom kev kawm uas tso npe thov ib tug homogeneous txheej: nqaim los dav nti, tas mus li txheej. Peb ib tug zoo nyob rau hauv cov hom ntawm cov hlau cladding.

nqaim daug

Txoj kev ntawm daim ntawv thov - nqaim nti. Lawv muab tso rau nrog ib tug sib tshooj uas hais txog 1/3 ntawm tag nrho leeg ntev.

Daim ntawv thov ntawm ntau yob

Txoj kev kho mob siv cov dav rau cov menyuam yog ntseeg nkaws tsiv perpendicular mus rau lub electrode axis txheeb ze sib tshooj. Yog li ua oscillatory taw, lub configuration ntawm cov uas yog xaiv raws li nyob rau hauv lub ntim ntawm lub ntsiab ib feem.

ua ke surfacing

Kev siv ntawm tag nrho kev kho mob yog tsim nyog nyob rau hauv cov neeg mob thaum nws yuav tsum tau mus nrhiav tau ib tug tas mus homogeneous txheej. Rau no naplav tsim nqaim nti, xws li los ntawm ib lwm nyob rau hauv ib tug deb me ntsis tsawg tshaj li lawv cov dav. Tom qab thawj lub tsho tiv no nqa cheb moj khaum pov tseg slag, thiab cov seem tsis muaj dabtsis yog thov lwm txheej ntawm molten hlau.

Rau cylindrical chaw

Dhau li ntawm tus saum toj no, lwm nrov siv surfacing technology siv electrodes - nyob rau hauv tiv thaiv cov roj nruab nrab. kev kho mob hauv paus ntsiab lus yog tsis sib txawv complexity. Nyob rau hauv qhov tseeb nws yog nyob rau hauv lwm yam - lub tshaaj ntawm tus kheej kheej, ua tus sau nrog ib tug sib tov ntawm ib tug tshwj xeeb roj: argon, Helium, lwm yam nyob rau hauv lub hom muab tub lim cov ntaub ntawv uas siv thaum lub sij hawm surfacing. Qhov kev xaiv no yog qhov zoo tshaj plaws suited rau ib tug me me lub tsev rhiav.

Txawm hais tias purchase ntawm cov roj kheej kheej mus ua hauj lwm nrog cov hlau nyob rau hauv tsev yog tsis zoo li yuav tsum tau tsim nyog. Nws ob txhais tes yooj yim ua surfacing los ntawm txoj kev electrodes, raws li peb sib tham nyob rau hauv tsab xov xwm.

Hopefully, no koj yuav nrhiav tau tag nrho cov lus teb rau cov lus nug hais txog nrog lub tswvyim ntawm kev thiab hais meej rau lawv tus kheej yuav ua li cas siv surfacing nyob rau hauv tsev.