Txhua tus neeg paub qhov vuam ntawm cov hlau yog dab tsi. Txawm li cas los xij, tsis yog txhua tus paub tias muaj ntau txoj hauv kev thiab txoj hauv kev rau kev sib koom ua ke siv ntau lub zog nqa. Kev sib txuas ntawm cov hlau yog ib hom kev sib cuag ntawm vuam. Nws txawv ntawm lwm tus nyob rau hauv hais tias nws tsis muaj ib tug welded seam, thiab cov seem yog koom nyob rau hauv ob peb lub ntsiab lus. Qhov kev sib txuas no tau txais kev siv dav tshaj plaws hauv kev lag luam kev lag luam, tab sis cov kws ua haujlwm hauv tsev tseem tab tom sim ua kom muaj zog qhov chaw vuam, thev naus laus zis thiab qhov zoo ntawm nws siv.
Txoj cai ntawm kev sib cuag
Lub hauv paus ntsiab lus ntawm kev siv vuam vuam yog ua kom sov cov khoom kom sov sai thiab ncaj qha tsim cov qauv hlau homogeneous ntawm qhov sib tshuam.
Cov mem tes qhov xwm txheej tam sim no thaum lub sijhawm vuam thiab lub sijhawm ntawm nws qhov kev ua haujlwm ntawm qhov chaw ua haujlwm ua lub luag haujlwm tseem ceeb hauv kev sib koom ua kom sov. Ib qho chaw zoo weld zoo tsuas yog tuaj yeem ua tiav yog tias cov khoom tau nruj thiab ruaj khov thaum lub sij hawm crystallization ntawm cov hlau molten.
Thaumsiv qhov chaw vuam tsis siv neeg hauv kev tsim khoom, nws tuaj yeem ua tiav qhov nrawm txog li rau pua tus neeg nyob ib feeb.
vuam tshuab
Hauv kev tsim khoom, kev siv vuam vuam yog tsuas yog siv los koom nrog cov ntawv hlau los ntawm cov hlau tsis muaj hlau, ntau qib steel, nrog rau kev sib tshuam cov cuab yeej thiab qhov profile-hom workpieces (lub kaum sab xis, channel). Nyob hauv tsev, feem ntau yuav tsum tau siv hom vuam no thaum kho cov khoom siv hauv tsev, txhim kho lub laj kab hlau, vuam mesh rau kev tsim kho.
Cov txheej txheem ntawm qhov chaw vuam tuaj yeem muab faib ua ntau theem:
- Ua ntej pib ua haujlwm, koj yuav tsum npaj cov blanks. Nws tsis yog qhov tsim nyog los ntxuav qhov saum npoo ntawm tag nrho lub dav hlau ntawm kev sib koom ua ke, xws li hauv vuam, nrog kev sib txuas txuas ntxiv. Nws yuav txaus los ntxuav cov ntsiab lus docking npaj nrog txhuam hlau los yog cov ntawv xuab zeb zoo. Cov residue ntawm cov xim los yog roj stains raug tshem tawm nrog cov tshuaj tshwj xeeb.
- Tom ntej no, cov khoom npaj yuav tsum tau txuas ua ke hauv txoj haujlwm xav tau.
- Tom qab cov haujlwm no, koj yuav tsum tso qhov khoob ntawm cov electrodes thiab nias lawv kom nruj rau ib leeg.
- Cov kauj ruam tom ntej qhia txog cov txheej txheem tseem ceeb ntawm kev ua haujlwm. Lub tshuab vuam tshuab tau qhib, uas tsim cov cua sov tsim nyog ntawm cov hlau mus rau lub xeev yas thiab tsim qhov tsim nyog deformation ntawm qhov vuam taw tes.
Kev lag luam kev lag luam feem ntau siv cov cuab yeej muaj peev xwm ntawm vuam hauv hom tsis siv neeg. Thiab nyob rau hauv domestic tej yam kev mob nws yog ntau npaum rau sivsemi-automatic chaw vuam.
hom kev ua haujlwm
Nyob ntawm qhov kev sib txuas thiab lub zog siab tshaj plaws ntawm lub tshuab vuam, lub sijhawm cua sov ntawm qhov sib txuas ntawm qhov chaw tuaj yeem sib txawv ntawm milliseconds mus rau ntau kaum vib nas this. Yog li, thaum ua-nws-koj tus kheej qhov chaw vuam ntawm carbon steels, uas yog yooj yim hardened thiab muaj peev xwm ntawm kev tsim cov kab nrib pleb, nws yog advisable kom ua rau lub sij hawm cua sov, rau ib tug qeeb qeeb tom qab txias ntawm cov hlau.
Tab sis nws yog qhov zoo dua rau vuam stainless hlau nrog lub sij hawm luv luv cua sov. Qhov no yog ua kom txo tau qhov kev puas tsuaj rau cov txheej tiv thaiv corrosion ntawm cov hlau.
Kev sib cuag nruj ntawm cov khoom nyob rau hauv qhov chaw ntawm vuam muab qhov tsim nyog siab ntawm cov electrodes. Qhov compression no yog nyob ntawm qhov tuab ntawm cov khoom thiab cov yam ntxwv ntawm cov hlau yuav tsum tau welded. Tus nqi siab ntawm qhov kawg ntawm vuam yog qhov tseem ceeb, vim nws yog lub luag haujlwm rau kev tsim cov qauv zoo ntawm cov khoom ntawm qhov vuam taw tes thiab coj lub zog ntawm cov neeg sib cuag los ze zog rau lub zog ntawm lub hauv paus hlau.
Txhim kho crystallization ntawm cov hlau molten yog ua tiav los ntawm kev ncua me ntsis hauv lub zog siab tom qab kev hla ntawm cov mem tes tam sim no.
txiaj ntsig ntawm kev sib txuas lus
Piv rau ntau hom pob qij txha, ua-nws-koj tus kheej qhov chaw vuam muaj ntau qhov zoo:
- Tsis tas yuav siv cov khoom siv ntxiv (flux, gas) hauv txheej txheem vuam.
- Vim tias kev sib txuas yog ua tsis tau siv roj,ces tsis muaj pa phem.
- Tsis muaj slag thiab pov tseg hauv txheej txheem.
- Qhov ua tau zoo ntawm qhov chaw vuam yog siab dua li qhov sib koom ua ke ntawm qhov chaw.
- Kev muaj peev xwm ua tiav kev sib txuas zoo hauv lub sijhawm luv luv.
- Ntau tus welders pom txoj kev no qhov kev nyiam huv tshaj plaws ntawm txhua qhov vuam thev naus laus zis.
Thaum ua raws li tag nrho cov cai ntawm kev ua haujlwm, nws yooj yim heev kom ua tiav cov khoom lag luam txhim khu kev qha thiab raug, txawm tias cov neeg pib tshiab.
Qhov tsis zoo ntawm txoj kev
Nrog rau qhov zoo ntawm qhov chaw vuam, muaj qee qhov tsis zoo ntawm kev siv txoj kev no. Cov no suav nrog cov hauv qab no:
- Yuav luag tsis tuaj yeem tau txais daim ntawv cog lus muaj zog ntawm cov hlau tsis sib xws.
- Muaj peev xwm ntawm cov hlau txaws thaum raug rau cov mem tes tam sim no.
- Lub workpiece compression mechanism thiab vuam lub taub hau cuab yeej yog txoj hauv kev tsim, nrog rau ib txhij fastening nyob rau hauv ob peb qhov chaw.
- Tsis tas li, nrog rau ntau qhov kev sib txuas, nws yog qhov tsim nyog los ua kom nyuaj rau kev tsim cov electrodes.
Electrode Requirements
Electrodes yog tsim los kaw cov hluav taws xob hluav taws xob los ntawm cov hlau qhov chaw raug welded. Electrolytic txias-dov tooj liab thiab nws cov tungsten-raws li alloys, nrog rau cov tooj liab tshwj xeeb uas muaj cob alt lossis cadmium, yog cov khoom tseem ceeb rau kev tsim cov electrodes. Tag nrho cov hlau no sib haum rau cov yam ntxwv tseem ceeb ntawm cov electrode - tsis kam, piv txwv li, lawv khaws lawv qhov ntev, cov khoom thiab cov duab thaum lawv cov nplaim yog rhuab mus rau qhov loj (txog li.600 ℃).
Txhawm rau txo cov electrode hnav thaum lub sijhawm ua haujlwm, nws yuav tsum tau saib xyuas lawv cov dej txias txias.
Txoj kev hla ntawm cov electrode yuav tsum phim qhov loj ntawm qhov chaw vuam. Ua kom txoj kab uas hla ntawm cov electrode ua rau muaj qhov txo qis ntawm cov cua sov ntawm qhov chaw vuam.
Resistance welding tshuab
Cov tuam txhab niaj hnub tsim ntau tus qauv ntawm ntau qhov chaw vuam tshuab. Tus nqi ntawm cov qauv no nyob ntawm cov txheej txheem ntawm kev ua haujlwm ntawm lub cuab yeej, yog li txhua tus welder yuav tsum txiav txim siab rau nws tus kheej rau lub hom phiaj twg nws yuav.
Txheem vuam tshuab suav nrog:
- hloov pauv tam sim no;
- universal vuam clamp;
- on thiab tawm relay;
- sijhawm sijhawm thiab tus tswj hwm tam sim no;
- electrode compression device.
Yooj yim hauv tsev welders yuav tsis muaj lub zog quab yuam, yog li tus welder yuav tsum tau kho qhov ntsuas no nws tus kheej, raws li nws qhov kev paub thiab kev paub.
Tag nrho cov cuab yeej tuaj yeem faib tau:
- Raws li lub hauv paus ntsiab lus ntawm kev tso electrodes - ntxeev ib leeg thiab nyob rau hauv parallel.
- Raws li txoj kev ua haujlwm - rau cov khoom siv tsis siv neeg thiab phau ntawv.
- Raws li txoj kev txav mus los - tshem tawm, txawb lossis chaw nres tsheb.
Nyob hauv cov nroj tsuag, ua haujlwm nroghigh-precision automatic khoom. Tab sis rau lub tsev, ua-nws-koj tus kheej qhov chaw vuam tshuab yog qhov tsim nyog.
Daim ntawv thov vuam rau cov roj teeb
roj teeb lithium-ion tam sim no tau siv dav hauv cov khoom siv hauv tsev thiab khoos phis tawj, kev ua haujlwm raug yog nyob ntawm kev sib txuas lus zoo. Hauv tsev, nws yog qhov zoo dua los ua qhov chaw vuam rau lub roj teeb nrog koj tus kheej txhais tes, vim tias tus nqi ntawm lub Hoobkas tsis muaj rau txhua tus kws ua haujlwm.
Tau kawg, cov yam ntxwv ntawm cov khoom siv zoo li no yuav qis dua rau cov khoom siv hauv tsev, tab sis lawv yuav tsim nyog rau kev siv hauv tsev. Qhov tseem ceeb tshaj plaws yog nyob rau hauv kev tsim cov chaw vuam rau cov roj teeb, tsis tu ncua thiab ua tib zoo xav txog txhua yam uas yuav tsum tau ua hauv tsev.
Lub hauv paus ntsiab lus ntawm kev sib cuag rau lub roj teeb
High fais fab mem tes rau kev sib txuas zoo ntawm lub roj teeb terminals tsis tas yuav tsum muaj. Yog li ntawd, ua ntej txiav txim siab yuav ua li cas rau qhov chaw vuam, koj yuav tsum nkag siab tias yog vim li cas koj tsis tuaj yeem siv cov roj teeb sib cuag. Cov kab hauv qab yog tias cov roj teeb terminals ntshai overheating, thiab ua hauj lwm nrog ib tug soldering hlau implies high cua sov ntawm cov nplaim paj.
Qhov teeb meem no tuaj yeem daws tau los ntawm tus kheej tsim qhov chaw vuam rau cov roj teeb, uas tuaj yeem tsim lub zog tam sim no mus txog 400-800 A. Qhov no yuav txaus los ua vuam.
Qhov kev ncaj ncees ntawm kev sib cuag thiab kev ntseeg siab ntawm kev sib txuas yuav nyob ntawm lub sijhawmmem tes (35-100 milliseconds). Ntev ntev tuaj yeem hlawv lub phaj, ua rau poob lub zog.
Koj tuaj yeem ua chav vuam los ntawm lub tsheb roj teeb tsis tu ncua, tab sis lub tshuab ua-nws-koj tus kheej rau qhov chaw vuam los ntawm lub microwave tseem yuav ua haujlwm ntau dua.
vuam tshuab los ntawm lub qhov cub microwave
Lub ntsiab tseem ceeb ntawm kev siv vuam yog ib qho kev hloov pauv uas hloov cov input voltage mus rau qib uas yuav tsum tau ua. Yog li ntawd, lub transformer rau qhov chaw vuam los ntawm lub qhov cub microwave yog qhov zoo tagnrho rau cov yam ntxwv.
Yog tias muaj qhov cub microwave qub, ces ua ntej koj yuav tsum ua tib zoo tshem cov khoom ntawm nws. Cov txheej txheem no yuav zoo li no:
- Ua tib zoo rhuav tshem lub tsev nyob hauv microwave thiab tshem tawm cov hloov pauv ntawm cov qauv.
- Vim tias qhov thib ob winding yog ua los ntawm cov hlau nyias, nws yuav tsum tau muab tshem tawm. Qhov kev ua haujlwm no yuav tsum tau ua nrog lub chisel thiab rauj me me, thaum tsis ua rau lub hauv paus winding.
- Tom ntej no, koj yuav tsum tshem tawm cov tub ntxhais sib nqus. Ntawm no koj yuav tau siv zog ntau dua, txij li ntawm qee cov qauv nws yog ua los ntawm vuam.
- kauj ruam tom ntej yog cua tshuab thib ob tshiab. Rau winding, ib tug hlau nrog ib tug ntoo khaub lig seem ntawm 10 mm los yog ntau tshaj yog haum.
- Ntxiv ob lossis peb tig ntawm cov xaim mus rau lub hauv paus ntawm lub transformer kom cov zis yog 2 V.
Tsawglub zog thaum ua-nws-koj tus kheej qhov chaw vuam los ntawm lub qhov cub microwave, koj yuav tsum tau nruab ib lub thib ob, zoo li transformer, txuas rau thawj qhov hluav taws xob Circuit Court.
Yuav tsum muaj rau hauv tsev electrodes
Feem ntau, cov lus qhia hlau soldering yog siv los ua cov electrodes, uas yog pre-sharpened hauv qab lub khob hliav qab. Nyob rau hauv qhov tsis muaj xws li qhov chaw, koj tuaj yeem siv cov tooj liab zoo tib yam nrog ib ntu ntawm 2-5 hli. Kev tu thiab kev teeb tsa ntawm qhov chaw ntawm lub cuab yeej muaj lawv tus kheej nuances:
- Yuav kom tswj tau cov duab uas xav tau, cov electrodes yuav tsum tau ua kom tsis tu ncua, vim lawv raug hnav hnyav thaum ua haujlwm.
- Ib ntus, tus sting yuav tsum tau ntxuav los ntawm cov quav hniav. Thiab thaum nws tag lawm, nws yuav tsum tau hloov.
- Yuav kom tsis txhob poob lub zog, cov xaim rau cov electrodes yuav tsum tau ceev cia.
- Nws yog qhov zoo dua los tso cov lus qhia ntawm cov xov hlau tam sim no.
Xeem los ua ke
txhawm rau txhawm rau ua haujlwm ntawm cov cuab yeej siv hauv tsev kom tiav thiab nyab xeeb, koj yuav tsum tau nruab ib lub tshuab hluav taws xob clamping. Lub toggle hloov yog txuas mus rau thawj winding ntawm lub transformer thiab yog mounted rau ntawm tus kov ntawm lub clamp lever.
Rau kev siv hauv tsev, nws txaus los siv lub zog ntev txog 60 cm, uas yuav ua rau kom txhais tes quab yuam ntau zaus.
Thiab tau kawg, koj yuav tsum xav txog kev kho qhov chaw vuam ntawm lub microwave mus rau lub desktop. Qhov zoo tshaj plaws yog kho cov cuab yeej nrog lub clamp, uas yuav tso cai rau koj txav mus rau qhov chaw zoo rau kev ua haujlwm.
Qee yam tsis xws luag hauv kev siv vuam
Nws yeej ib txwm zoo dua los kawm txhua yam los ntawm kev ua yuam kev ntawm lwm tus. Yog li ntawd, nws yog ib qho tsim nyog yuav tau paub koj tus kheej nrog cov kev tsis zoo uas yuav tshwm sim thaum lub sij hawm vuam:
- Cracks nyob rau saum npoo tej zaum yuav tshwm sim vim kev ua txhaum cai ntawm qhov kub thiab txias.
- Thaum sib tshooj vuam khoom, kev tawg tuaj yeem tshwm sim raws ntug ntawm kev sib koom tes yog tias qhov vuam taw tes nyob ze ntawm ntug.
- Vim cov electrodes tsis zoo, ib nrab lossis ua tiav tsis muaj fusion ntawm qhov chaw vuam yuav tshwm sim.
- Tab sis los ntawm txoj kab me me ntawm cov electrodes, cov dents tuaj yeem tshwm rau ntawm kev sib cuag.
- Thiab tau kawg, qhov yuam kev tshaj plaws rau cov neeg siv khoom tshiab yog hlawv los ntawm qhov chaw, uas tuaj yeem tshwm sim thaum cov electrodes tsis muaj zog compressed.
- Vim yog lub sijhawm ntev ntawm lub plawv dhia thiab lub siab tam sim no, sab nrauv thiab sab hauv tuaj yeem tsim.
- Yog tias cov electrodes tau teeb tsa tsis raug raws li cov phiaj xwm yuav tsum tau welded, cov tub ntxhais hloov chaw yuav tshwm sim.
Txawm tias nws tsis yooj yim rau kev yuav khoom siv rau qhov chaw vuam, lub tshuab ua-nws-koj tus kheej yuav yog tus pabcuam uas ua tau raws li qhov yuav tsum tau ua ntawm tus kws tsim khoom hauv tsev. Thiab txhawm rau ua cov cuab yeej zoo li no koj tus kheej, koj yuav tsis xav tau ntau cov ntaub ntawv thiab nyiaj txiag.
