Lub hauv paus ntsiab lus ntawm lub vuam inverter: kev piav qhia, kev sib cog lus thiab ntaus ntawv

Traditional vuam cov cav nrog cov mus tas li transformers ntawm lossis loj loj yog maj disappearing rau yav dhau los. Es tsis txhob lawv tam sim no lawv muaj cov khoom siv qhov sib tw ntawm cov voj voog inverters. Lawv yooj yim los siv, cov neeg pib tshiab kuj siv tau lawv. Yuav kom paub seb yam khoom ntaus nws zoo li cas, koj yuav tsum xav txog qhov tsim thiab kev lag luam ntawm vuam inverter.

Txog kev tsim kho

Cov cuab yeej txawv ntawm ib txwm thiab ntau me ntsis txog rau txhua lub chaw ntawm transformers. Hauv kev inverter, cov txheej txheem ntawm kev hloov ua haujlwm tam sim no tshwm sim txawv. Cov txheej txheem pib ua kauj ruam yog kauj ruam nrog kev pab los ntawm ib lub tshuab hluav taws xob me, qhov loj me me uas loj tshaj ib pob ntawm cov luam yeeb. Lwm qhov txawv yog qhov kev tiv thaiv hluav taws xob. Nws ua rau nws yooj yim dua weld. Ua tsaug rau cov tshuab hluav taws xob, tsim muaj kev sib tw. Ntawm no yog li cas qhov inverter vuam tshuab ua haujlwm. Kev txheeb xyuas txog cov cuabyeej no feem ntau zoo. Ntau tus siv nws vim hais tias ntawm lub compactness thiab zoo ntawm seam.

Lub hauv paus ntsiab lus ntawm kev ua haujlwm

Chiv, input input nrog ib voltage ntawm 220 volts nrog variable zaus khiav los ntawm rectifier thiab ces hloov mus constants. Tsis tas li ntawd, qhov tam sim no yog sib tov los ntawm txoj kev lim. Feem ntau yog siv raws li cov kev cai lij choj raws li cov tub ntxhais ntawm electrolytic. Tsis tas li ntawd, lub qhov hluav taws xob thiab qhov tam sim no dhau los ntawm tus qauv nruab nrab ntawm lub semiconductor, uas lawv rov los ua ib qho kev hloov, tab sis nrog ntau dua frequencies. Hauv hom qauv txawv no qhov ntsuas txawv, tab sis tsis pub tshaj 100 kHz. Qhov tam sim no yog rectified dua thiab cov voltage txo rau qhov nqi uas yuav tsum tau siv rau cov hlau. Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm inverter vuam raws li nyob rau hauv high-zaus converters. Lub xub ntiag ntawm cov pob taws no tso cai rau kev siv cov kev hloov me me, vim qhov loj ntawm chav tsev tau poob qis rau qhov ntau. Piv txwv, kom ua lub voj vuam tshuab uas muaj peev xwm ua tau xa ib qhov tam sim no ntawm 160 Amperes, qhov kev hloov tsheb yuav tsum hnyav tsis tshaj 250 grams. Yuav kom ua tiav tib cov txiaj ntsig siv ib qho kev hloov cuab yeej, tus neeg hloov tsheb yuav muaj tsawg kawg nkaus ntawm 18 kilograms. Qhov no yog qhov tsis txaus.

Chav tsev tswj hwm yog qhov zoo ntawm cov tshuab inverter vuam tshuab

Electronics ua haujlwm tseem ceeb heev hauv kev ua haujlwm ntawm cov khoom siv no. Vim nws muaj kev tawm tswv yim. Qhov no yuav pab kom tswj tau cov arc, yuav tau kho los yog kom nws nyob rau lub zoo theem yog tias tsim nyog. Lub slightest sib txawv ntawm cov yam ntxwv ntawm lub arc yog instantaneously nyeem los ntawm txoj kev microprocessors. Tej hauv paus ntsiab lus ntawm cov lag luam ntawm lub inverter vuam siv lub tshuab thiab muaj ib tug hluav taws xob tswj tsev muab cov hluav taws xob arc nyiaj pab ntau tshaj ruaj khov yam ntxwv. Qhov no nws thiaj li ua rau kev ua haujlwm zoo dua qub.

Schematic daim duab

Hauv rectifier, alternating tam sim no nrog ib zaus ntawm 50 Hz thiab ib tug voltage ntawm 220 volts kis los ntawm ib tug choj diode choj. Tam sim no ripple nrog tsis paub meej zaus yog smoothed los ntawm muaj cov electrolytic capacitors hauv Circuit Court. Nyob rau hauv lub lag luam, lub diode choj yog kev kawm mus rau overheating, ces tus diodes mounted dab. Tsis tas li, cov inverter muaj nruab nrog lub thermal fuse. Nws ua haujlwm yog tias lub diodes raug rhuab mus rau 90 degree. Lub thermal fuse nti tawm tau zoo tiv thaiv lub diodes. Nyob ze ntawm lub choj diode, koj tuaj yeem pom cov lag luam loj loj. Lawv muaj peev xwm ua tau los ntawm 140 mus txog 800 μF. Kuj tseem ceeb nyob rau hauv lub tswv yim muaj cov ntxaij lim dej uas tsis pub muaj kev cuam tshuam rau lub sijhawm ua haujlwm. Peb tau saib ntawm txoj cai ntawm kev txhuam ntawm qhov vuam inverter. Lub tswv yim kuj tseem qhia txog lwm cov ntsiab lus. Cia peb xav txog lawv hauv qab no.

Inverter: dab tsi nws yog nws tus kheej

Ncaj nraim lub inverter nws tus kheej yog ua rau ob lub txiv moppets. Cov no yog cov uas muaj zog heev. Lawv muaj cov cuab yeej ntawm kev kub ntxhov, yog li lawv tau nruab nrog lub tshuab hluav taws xob. Tej semiconductor ntsiab kom daws tau qhov teeb meem ntawm switching lub currents dhau los ntawm lub mem tes transformer. Kev khiav hauj lwm frequencies nov tau tshaj li ob peb kHz. Yog li ntawd, qhov siab sib txawv ntawm qhov tam sim no yog tam sim no. Transistors yuav tsum tiv taus cov voltage. Cov neeg tsim khoom siv nruab nrog cov khoom siv tshwj xeeb tiv thaiv. Feem ntau lawv tau sib sau ua ke ntawm lub hauv paus ntawm cov teeb meem ntawm resistors thiab cov neeg ua haujlwm. Ntxiv mus rau hauv rooj plaub no los ntawm kev sib txuas ntxiv rau qhov kev hloov tshuab hluav taws xob. Nws muaj me me voltages - txog 70 volts. Tab sis tam sim no yuav 130-140 Amps.

Tso Tawm Rectifier

Hauv kev txiav txim rau qhov kev tso zis los ua ib qho tam sim no thiab qhov kev siv hluav taws xob, siv ib qho kev tso zis tawm rectifier. Lub voj voog no yog sib sau ua ke ntawm ob lub duab sib npaug, uas muaj cathode ntau. Cov ntsiab lus no yog kev ua los ntawm kev kub ceev ntawm kev lag luam, lawv kam qhib thiab sai sai. Lub sijhawm lub sijhawm ntawm cov diodes xws li 50 nanoseconds. Qhov kev ceev no tseem ceeb heev. Diodes yuav tsum tau ua haujlwm nrog cov voj ntau zaus, cov ntsiab lus nruab nrab ntawm semiconductor nrog qhov teeb meem tsis muaj peev xwm tiv thaiv. Lawv tsuas tsis muaj qhov ceev ceev thaum hloov. Thaum kho, txawm tias paub txog cov khoom siv hauv cov cuab yeej, qhov tseem ceeb ntawm kev lag luam, cov kev taw qhia no raug pom zoo kom hloov mus rau cov ntsiab lus nrog tib yam ntxwv.

Cov cuab yeej thiab kev lag luam ntawm lub tshuab hluav taws xob

Nws yog powered by voltage regulators nyob ntawm 15 volts. Cov ntsiab lus no yog ntsia rau ntawm cov tshuab hluav taws xob. Cov mov hluav taws xob rau lub rooj tsavxwm los ntawm lub ntsiab rectifier. Thaum siv qhov voltage, koj yuav tsum tau them tus nqi rau thawj zaug. Lub nro ntawm lub sijhawm no loj tuaj. Kev tiv thaiv kab ke sib koom ua ke, ib qho kev sib txuas nrog lub hwj chim uas muaj zog heev. Thaum cov kais dej uas them tas lawm, lub vuam tshuab yuav pib ua haujlwm. Cov relay tau kaw, thiab tus tiv tuaj yeem tsis koom nrog hauv txoj haujlwm.

Ntxiv ntshav thiab tshuab

Cov cuab yeej thiab kev khiav hauj lwm txoj cai ntawm qhov vuam inverter implies lub neej ntawm lwm lub tshuab thiab cheebtsam uas muab lub cuab yeej nrog kev ua haujlwm zoo li no. Yog li, koj tuaj yeem saib xyuas qhov kev tswj xyuas, nrog rau cov tsav tsheb. Lub ntsiab ntawm no yog lub PWM maub los. Nws muab kev tswj ntawm qhov kev txiav txim ntawm cov haib transistors. Tsis tas li ntawd nyob rau hauv lub cuab yeej muaj ntau yam kev tswj, thiab raws li kho circuits. Nyob rau hauv cov ntaub ntawv no, lub ntsiab lub ntsiab yog cov transformer. Nws xav tau los tswj lub hwj chim thiab lwm yam ntxwv ntawm qhov tam sim no tom qab tso tawm cav. Txoj kev khiav hauj lwm ntawm vuam inverter kuj pom tias muaj cov txheej txheem rau kev saib xyuas qhov muaj hluav taws xob thiab cov yam ntxwv ntawm cov dej ntws ntawm qhov tso tawm hauv cov khoom siv hluav taws xob. Chav tsev no muaj ib qho kev hloov ua haujlwm raws li tus ntiv tes. Lub hom phiaj tseem ceeb ntawm txoj kev ua haujlwm no yog pib kev tiv thaiv thaum muaj kev kub ntxhov ceev. Nws kuj yog tsim los tswj xyuas cov haujlwm thiab kev noj qab haus huv ntawm lub tshuab hluav taws xob.

VUAM MACHINE RAU TIG VUAM

Kev siv hlau rau hauv cov pa roj carbon monoxide yog ib qho tseem ceeb tshaj plaws ntawm kev siv vuam siv rau hnub no. Ua hauj lwm nrog kev siv argon muab cov pob qij txha zoo siab vim yog lub rwb thaiv tsev tag nrho ntawm da dej. Yog li nws yog ua tau rau ua hauj lwm nrog txhua yam hlau, txawm nrog txhuas, magnesium, titanium thiab lawv cov phom. Lub hauv paus ntawm kev lag luam ntawm vuam inverter nrog argon tsis muaj dab tsi tshwj xeeb los ntawm ib qho dog dig inverter. Lub ntsiab qhov txawv yog tias txoj kev siv tsis yog siv cov khoom tam sim no xwb, tab sis kuj yog ib qho hluav taws kub tshwj xeeb. TIG welding muaj qhov kub cua ntawm qhov chaw ua haujlwm los ntawm kev siv fais fab, uas yog tsim los ntawm kev siv hluav taws xob tho electrode. Ntau tus xav kawm txog kev siv lub tshuab inverter vuam tshuab ua haujlwm li no. Cia peb kawm paub.

Tus qauv siv ntawm TIG vuam tshuab

Cov cuab yeej rau argon-arc vuam yog tam sim no thiab qhov tshwj xeeb lub teeb. Thawj zaug uas yuav tsum tau tsim kom muaj hluav taws xob fais fab, thiab kom tswj tau nws cov xwm hauv qhov tsis zoo. Ib co xov tooj ntawm cov hlau thiab cov hlau ntoo, uas koj tuaj yeem ua haujlwm nyob rau hauv txoj kev no, txhais tau tias ntau cov kev kho me ntsis. Hnub no, semiconductor inverter units siv rau lub hom phiaj no. Qhov no nws yog ib tug TIG welding inverter. Lub hauv paus ntsiab lus ntawm kev lag luam tsis txawv los ntawm ib qho pa hluav taws xob, tab sis qhov tso tawm ntawm xws li ib tug ntaus ntawv ua ke. Siv tam sim no yog siv rau kev ua haujlwm nrog stainless steels, copper alloys. Qhov txawv kuj tsim rau magnesium, txhuas thiab lwm yam kev sib xws. Kev khiav hauj lwm hom, thaum sib quas ntus cov ntaub ntawv thov, yog siv rau cov khoom siv hlau ntim. Tsis tas li ntawd nyob rau hauv tus tsim muaj lub zog. Nws yog dab tsi? Qhov no yog ib tug tshwj xeeb ntaus ntawv nyob rau hauv uas lub teeb tungsten electrode. Nws muaj ib lub taub hau uas tau muab coj los ua dab tsi. Tsis zoo li cov tshuaj vuam semiautomatic, ib tug tig vuam teeb rau roj mov pib ua ntej zes cov arc. Qhov no txwv tsis pub lub cub tawg ntawm cov hlau.

Xaus

Tus nqi pheej yig ntawm cov khoom lag luam ua rau nws xav tau tiag tiag los yuav qhov khoom siv rau cov tsev neeg. Yog tias koj kawm paub siv kev ntaus nrig li cas, koj tuaj yeem ua haujlwm tau nyiaj. Niaj hnub no, argon welding yog nyob rau hauv zoo kawg thiab xav tau. Koj tuaj yeem yuav pheej yig domestic vuam inverter TIG-180 s. Lub hauv paus ntsiab lus ntawm chav tsev no tso cai rau koj siv nws nyob rau hauv phau ntawv qhia kev siv welding. Qhov no yog txoj kev daws teeb meem. Tus nqi ntawm nws yog los ntawm 13 mus rau 15 txhiab rub. Cov pheej yig tshaj plaws suav qauv yuav tau muas ntawm ib nqe ntawm 6 txhiab rubles. Cov khoom siv li ntawm 50,000 rubles.