Tsawg vuam tshuab nrog cov hloov pauv loj loj tau maj mam dhau los ua qhov qub. Hloov chaw, compact welding inverters tau tshwm sim tam sim no. Lawv yog cov yooj yim mus use, txawm beginners siv tau. Yuav kom paub seb nws yog dab tsi, koj yuav tsum xav txog qhov tsim thiab lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm vuam inverter.
About design
Cov cuab yeej sib txawv ntawm ib txwm muaj thiab paub ntau dua transformers rau txhua tus welder.
Nyob rau hauv lub inverter, cov txheej txheem ntawm kev hloov ua haujlwm tam sim no tshwm sim txawv. Cov txheej txheem no txuas ntxiv mus rau theem uas siv lub tshuab hloov me me, qhov loj me me ntawm cov luam yeeb. Lwm qhov txawv yog qhov kev tswj hwm hluav taws xob. Nws ua rau cov txheej txheem vuam yooj yim dua. Ua tsaug rau cov khoom siv hluav taws xob, cov seams zoo tau tsim. Qhov no yog li cas lub inverter vuam tshuab ua haujlwm. Kev tshuaj xyuas txog cov cuab yeej no feem ntau yog qhov zoo. Ntau tus siv nws vim qhov compactness thiab zoo ntawm seam.
Txoj hauv paus ntsiab lus ntawm kev ua haujlwm
Thaum pib220V sib txawv zaus input tam sim no ntws los ntawm lub rectifier thiab ces hloov mus rau DC. Tsis tas li ntawd, qhov tam sim no yog smoothed nrog lub lim. Feem ntau, ib txwm siv hluav taws xob raws li electrolytic capacitors yog siv raws li nws. Tom ntej no, DC voltage thiab tam sim no dhau los ntawm cov khoom siv hluav taws xob semiconductor, qhov uas lawv rov tig mus rau hauv AC, tab sis nrog ntau zaus. Hauv cov qauv sib txawv, daim duab no txawv, tab sis tsis tshaj 100 kHz. Tom qab ntawd qhov tam sim no raug kho dua thiab qhov hluav taws xob txo qis rau tus nqi tsim nyog rau vuam hlau. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm vuam inverter yog raws li cov khoom siv hluav taws xob ntau. Lub xub ntiag ntawm cov nodes tso cai rau siv me me transformers, vim hais tias cov loj ntawm chav tsev tau raug txo kom tsawg. Piv txwv li, nyob rau hauv kev txiav txim rau lub inverter vuam tshuab kom xa tau ib tug tam sim no ntawm 160 amperes, lub transformer yuav tsum hnyav tsis ntau tshaj 250 grams. Txhawm rau ua tiav cov txiaj ntsig zoo ib yam siv cov cuab yeej ib txwm siv, lub tshuab hloov pauv yuav muaj qhov tsawg kawg nkaus ntawm 18 kilograms. Qhov no tsis yooj yim heev.
chav tswj yog lub ntsiab kom zoo dua ntawm inverter vuam tshuab
Electronics ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov khoom siv no. Nws muab tswv yim. Qhov no yuav pab kom tswj tau lub zog hluav taws xob tag nrho, yog tias tsim nyog, kho lossis tswj nws qhov ntsuas ntawm qhov xav tau.
Qhov sib txawv me ntsis ntawm cov yam ntxwv ntawm lub arc yog nyeem tam sim siv microprocessors. Txoj kev khiav hauj lwm noLub inverter ntawm lub tshuab vuam thiab lub xub ntiag ntawm lub tshuab hluav taws xob tswj tau lav lub zog hluav taws xob nrog cov yam ntxwv ruaj khov tshaj plaws. Qhov no thaum kawg ua rau kev ua haujlwm vuam zoo.
Schematic daim duab
Nyob rau hauv lub rectifier, alternating tam sim no nrog ib tug zaus ntawm 50 Hz thiab ib tug voltage ntawm 220 Volts dhau los ntawm ib tug haib diode choj. Qhov sib txawv zaus tam sim no ripples smoothed tawm vim muaj cov electrolytic capacitors hauv Circuit Court. Thaum lub sijhawm ua haujlwm, tus choj diode yuav raug overheating, yog li cov radiators tau nruab rau ntawm lub diodes. Tsis tas li ntawd, lub inverter yog nruab nrog lub thermal fuse. Nws ua haujlwm yog tias cov diodes raug cua sov rau 90 degrees. Lub thermal fuse ntseeg tau tiv thaiv cov diodes. Nyob ze ntawm tus choj diode, koj tuaj yeem pom cov capacitors loj heev. Lawv capacitance tuaj yeem nyob ntawm 140 txog 800 microfarads. Tsis tas li ntawd, lub Circuit Court yuav tsum muaj cov lim dej uas tsis tso cai rau kev cuam tshuam thaum ua haujlwm. Peb tau tshuaj xyuas qhov twg vuam inverter muaj lub hauv paus ntsiab lus ntawm kev ua haujlwm.
Lub tswv yim kuj hais txog lwm yam. Mus saib lawv hauv qab no.
Inverter: nws yog dab tsi
Lub inverter nws tus kheej yog ua los ntawm ob mosfes. Cov no yog cov muaj zog transistors. Lawv nyiam kub heev, yog li lawv tau nruab nrog lub tshuab hluav taws xob. Xws li cov ntsiab lus semiconductor daws qhov teeb meem ntawm kev hloov pauv tam sim no dhau los ntawm pulse transformer. Kev khiav hauj lwm zaus ntawm no tuaj yeem tshaj li ntau txhiab kHz. Raws li qhov tshwm sim, ib qho tam sim no uas muaj qhov hloov pauv siab zaus yog tsim. transistors yuav tsum yogresistant rau voltage poob. Cov neeg tsim khoom nruab nrog cov khoom siv tiv thaiv tshwj xeeb. Feem ntau lawv tau sib sau ua ke ntawm lub hauv paus ntawm lub voj voog nrog cov resistors thiab capacitors. Tom ntej no, qhov thib ob winding ntawm kauj ruam-down transformer los rau hauv kev ua si. Nws muaj qhov hluav taws xob tsawg - txog li 70 volts. Tab sis tam sim no lub zog tuaj yeem yog 130-140 Amperes.
tso zis rectifier
Yuav kom qhov tam sim no tsis tu ncua thiab qhov hluav taws xob tsim tawm ntawm cov zis, siv cov khoom siv hluav taws xob txhim khu kev qha. Qhov no Circuit Court yog sib sau ua ke nyob rau hauv lub hauv paus ntawm dual diodes uas muaj ib tug ntau cathode. Cov ntsiab lus no yog tus cwj pwm los ntawm kev kub ceev ntawm kev ua haujlwm, lawv tam sim qhib thiab kaw sai. Lub sij hawm teb ntawm cov diodes yog li 50 nanoseconds. Qhov ceev no tseem ceeb heev.
Diodes yuav tsum ua haujlwm nrog cov khoom siv hluav taws xob siab, cov khoom siv hluav taws xob zoo tib yam tsis tuaj yeem tiv nrog txoj haujlwm no. Lawv tsuas yuav tsis muaj qhov ceev txaus thaum hloov. Nyob rau hauv rooj plaub ntawm kev kho, txawm paub lub cuab yeej ntawm vuam inverter, lub hauv paus ntsiab lus ntawm kev ua haujlwm, nws raug nquahu kom hloov cov diodes rau cov khoom uas muaj cov yam ntxwv zoo ib yam.
Tsim thiab ua haujlwm ntawm lub tshuab hluav taws xob
Nws yog powered los ntawm voltage regulators ntsuas ntawm 15 volts. Cov ntsiab lus no tau nruab rau ntawm lub tshuab hluav taws xob. Lub hwj chim mov rau lub rooj tsavxwm yog los ntawm lub ntsiab rectifier. Thaum siv hluav taws xob, cov capacitors raug them ua ntej. Lub nro yog loj hlob ntawm qhov no. Txhawm rau tiv thaiv lub diode los ua ke, ib qho kev txwv Circuit Court nrog lub zog resistor tau siv. Thaum twgcapacitors tau them tag nrho, lub tshuab vuam pib nws txoj haujlwm. Lub relay hu kaw, thiab tus resistor yuav tsis koom nrog hauv cov txheej txheem.
Ntxiv chav thiab cov tshuab
Cov cuab yeej thiab lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm vuam inverter txhais tau tias muaj lwm lub tshuab thiab cov khoom siv uas muab cov cuab yeej ua haujlwm siab. Yog li, koj tuaj yeem qhia txog kev tswj hwm, nrog rau cov tsav tsheb. Lub ntsiab tseem ceeb ntawm no yog PWM maub los nti. Nws muab kev tswj ntawm qhov kev txiav txim ntawm cov muaj zog transistors. Tsis tas li ntawd nyob rau hauv lub cuab yeej muaj ntau yam kev tswj thiab hloov circuits. Nyob rau hauv cov ntaub ntawv no, lub ntsiab tseem ceeb yog lub transformer. Nws yog tsim nyog los tswj lub zog thiab lwm yam ntxwv ntawm tam sim no tom qab tso zis transformer.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm vuam inverter kuj txhais tau tias muaj lub kaw lus rau kev saib xyuas qhov hluav taws xob thiab cov yam ntxwv ntawm cov tam sim no ntawm cov zis hauv lub ntsiab. Qhov thaiv no muaj lub tshuab ua haujlwm ua haujlwm raws li microcircuit. Lub hom phiaj tseem ceeb ntawm lub kaw lus yog txhawm rau tso tawm hom kev tiv thaiv xwm txheej ceev thaum xav tau ceev. Nws kuj yog tsim los saib xyuas kev ua haujlwm thiab kev noj qab haus huv ntawm chav tsev hluav taws xob.
TIG Argon Vuam Machine
Inert gas welding ntawm cov hlau yog ib qho ntawm cov kev ceev tshaj plaws vuam txoj kev niaj hnub no. Ua hauj lwm nrog argon muab cov seams zoo vim yog kev sib cais tag nrho ntawm cov da dej. Yog li, nws tuaj yeem ua haujlwm nrog txhua yam hlau, txawm tias muaj txhuas, magnesium, titanium thiab lawv cov alloys. Txoj cai ntawm kev ua haujlwmvuam inverter nrog argon tsis txawv ntawm ib qho yooj yim inverter. Qhov sib txawv tseem ceeb yog tias cov txheej txheem siv tsis yog tsuas yog vuam fais fab, tab sis kuj yog ib lub teeb tshwj xeeb. TIG vuam cuam tshuam qhov cua sov ntawm qhov chaw ua haujlwm siv lub tshuab hluav taws xob, uas yog tsim los ntawm kev siv hluav taws xob refractory tungsten electrode. Ntau tus neeg xav paub seb hom inverter vuam tshuab ua haujlwm li cas. Cia peb kawm.
Tsim TIG welding tshuab
Cov cuab yeej rau argon arc vuam yog lub zog thiab lub teeb tshwj xeeb.
Thawj yog xav tau los ua kom muaj hluav taws xob arc, nrog rau kev tswj hwm nws qhov loj ntawm qhov tsis zoo. Tus naj npawb ntawm cov hlau thiab alloys uas tuaj yeem ua haujlwm nrog hauv txoj kev no suav nrog ntau yam kev hloov kho. Niaj hnub no, semiconductor inverter units yog siv rau qhov no. Qhov no yog TIG vuam inverter. Lub hauv paus ntsiab lus ntawm kev ua haujlwm tsis txawv ntawm cov khoom siv hluav taws xob zoo sib xws, tab sis cov khoom siv hluav taws xob sib xyaw ua ke. Tam sim no ncaj qha siv los ua haujlwm nrog cov hlau tsis muaj steel, tooj liab alloys. Variable yog haum rau magnesium, aluminium thiab lwm yam zoo sib xws alloys. Hom kev ua haujlwm thaum muaj kev sib tshuam tam sim no yog siv rau vuam nyias qhov chaw. Kuj suav nrog yog lub burner. Dab tsi yog?
Qhov no yog ib qho khoom tshwj xeeb uas tau teeb tsa lub tungsten electrode. Nws muaj lub nozzle los ntawm qhov uasargon yog muab. Tsis zoo li cov tshuab semi-automatic welding tshuab, TIG vuam teeb yog muab nrog roj ua ntej lub arc yog ignited. Qhov no tsis txhob hlawv cov hlau.
Zoo kawg
Tus nqi pheej yig ntawm cov cuab yeej zoo li no tso cai rau koj los xav txog kev yuav khoom zoo li no rau tsev neeg. Yog tias koj kawm paub siv cov cuab yeej zoo li no, koj tuaj yeem khwv tau. Muaj kev thov siab heev rau argon vuam niaj hnub no. Koj tuaj yeem yuav tus nqi pheej yig hauv tsev TIG-180s vuam inverter. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov cuab yeej no tso cai rau koj siv nws hauv phau ntawv vuam hom. Qhov no yog ib tug universal tov. Nws tus nqi yog los ntawm 13 mus rau 15 txhiab rubles. Cov qauv pheej yig tshaj plaws hauv Suav tuaj yeem yuav ntawm tus nqi ntawm 6 txhiab rubles. Cov cuab yeej tshaj lij raug nqi txog 50 txhiab rubles.
