Homeliness, Yam cuab yeej thiab khoom
Txhuas vuam nrog argon rau beginners: kauj ruam yog kauj ruam cov lus qhia. Technology thiab tshwj xeeb tshaj yog txhuas vuam argon
Nyob rau hauv lub puas-hloov tej yam kev mob ntawm ntau lawm, kev noj ntawm steel khoom yog tshee ua. Yog tsis muaj ib yam tib neeg kev ua si, qhov chaw uas peb yuav ua tsis tau cov khoom no. Ib qho ntawm feem nrov, nrog rau steel thiab cam khwb cia hlau, txhuas stands. Heev sai sai, ib tug zoo zoo nkauj tshooj, tsis tshua muaj hlau nws muab rau hauv ib lub tsev. Yuav kom nkag siab txog cov repairing technology los yog cov creation ntawm cov khoom tshiab los ntawm cov khoom no, koj yuav tsum xav txog nyob rau hauv kom meej raws li txhuas vuam yog argon rau beginners. Kauj ruam yog kauj ruam qhia yuav pab kom cov dab txawm nyob rau hauv lub tsev.
Cov khoom ntawm txhuas
Ua ntej cov tswv yim nrog lub txhuas vuam argon, kauj ruam yog kauj ruam cov lus qhia rau beginners uas yuav tsum tau los sib tham hereinafter, yuav tsum paub txog lub zog ntawm cov khoom.
Aluminium ua tam sim no tsis muaj impurities yog 4 lub sij hawm zoo tshaj hlau. Qhov no cov ntaub ntawv uas ua tshav kub ntawm qhov taw qhia 2.2 W / (cm K ∙). Nyob rau hauv steel, piv txwv li, nws yog 0.6 W / (cm K ∙). Qhov no yuav tsum raug xam tias yog ib tug tswv, thaum ua txhuas vuam nrog argon. Rau beginners kauj ruam yog kauj ruam cov lus qhia yuav tsum tau nqa tawm mus rau qhov tsawg tshaj plaws cov ntsiab lus.
Feem ntau siv alloys yog AlMg5, AlMg4, 5Mn. Lawv thermal conductivity yog tseem siab tshaj uas ntawm hlau thiab yog hais txog 1.3 W / (cm K ∙).
txhuas vuam tshuab argon vim hais tias cov nta tsis pub ib qho kev nce nyob rau hauv cov kev ceev ntawm tus txheej txheem. Txwv tsis pub txo allergic tob. Ceev ceev crystallization ntawm lub weld pas dej ua ke ua tsis tiav gassing. Qhov no feature ntawm argon vuam ntawm txhuas yuav ua rau cov tsim ntawm pores nyob rau hauv lub weld. Yog li ntawd, feem ntau ntawm cov tam sim no lub zog yog yuav tsum tau tshaj rau hlau.
Txoj kev rau txhuas vuam argon
Aluminium vuam argon, uas technology tau tsim siv ntaub ntawv sib txawv, yog li ntawm ob peb hom. Cov feem ntau sawv daws yuav yog:
- Vuam siv ib tug tungsten electrode uas tshwm sim nyob rau hauv ib tug inert roj ib puag ncig;
- Vuam hlau rau automatic txaus kho mob argon txhuas;
- Vuam tsis siv kev tiv thaiv gases melting electrodes.
Ib qho tseem ceeb mob yog kev rau tus txheej txheem ntawm rhuav lub oxide zaj duab xis uas yog tsim nyob rau hauv lub workpiece nto. Rau lub hom phiaj no, argon txhuas vuam yog tau siv AC los yog DC rov qab tam sim no. Cov txheej txheem yuav tsis tau ua nyob rau ntawm ib tug tas mus li rau pem hauv ntej tam sim no. Lub oxide zaj duab xis yog tsis tawm los rau kev puas tsuaj, tsis tshwm sim sputtering.
Vuam kuj tau muab faib los ntawm cov kev ceev ntawm nws cov kev kawm nyob rau MIG thiab tig (AC). Nyob rau hauv thawj cov ntaub ntawv, cov txheej txheem yog ua 3 lub sij hawm sai, tab sis lub weld zoo yog ntau tshaj li ob hom ntawm cov lag luam.
ntaub ntawv
Niaj hnub no siv ib tug loj tus naj npawb ntawm txhuas alloys. Nyias muaj nyias tus lub cev thiab tshuaj cov yam ntxwv. Muab tub lim hlau rau Vuam txhuas argon yuav tsum tau siv kom sai. Yog hais tias lub pob twb qhib, khw tej khoom yuav ua tsis tau ntev. Oxidizing qhov chaw ntawm lub muab tub lim hlau yog unsuitable rau welding txhuas argon.
Ua ntej lub lag luam, lub saum npoo yog ntxuav ntawm txawv teb chaws muaj teeb meem. Txawm muaj ib tug luv luv nyob hauv cov huab cua, txhuas yog them nrog ib tug zaj duab xis ntawm Al2O3 oxide. Tej ntaub ntawv thaum lub sij hawm vuam txoj kev yuav tsum tau cov kev ntawm ib tug tiv thaiv ib puag ncig ntawm inert gases. Rau lub hom phiaj no, argon.
Tab sis nws yog ib qho zoo siv no roj nyob rau hauv ib tug sib tov nrog Helium. Qhov no tso cai rau koj mus cuag ntau dua weld pas dej ua ke kub. Qhov no yog tshwj xeeb tshaj yog ib qho tseem ceeb rau tuab-walled workpieces. Nyob rau hauv tej rooj plaub, semi-automatic vuam ntawm txhuas yog ua tsis siv argon, thiab Helium ib leeg.
Tsis tas li ntawd txoj kev siv cov sib tov ntawm gases tso cai rau kom muab tau tsawg ntxeem tau leeg.
Khoom rau lub vuam txoj kev
Vuam ntawm txhuas argon technology uas yuav tsum tau los sib tham hereinafter, suav cov siv ntawm tej yam khoom siv. Mus nqa tawm hauv tus txheej txheem yuav tsum tau qhov inverter Tig AC, uas yuav pab raws li ib tug qhov chaw ntawm AC fais fab. Nws yuav tsum tau muab ib tug grounding system tsis SWB. Tsis tas li ntawd npaj ua ntej yuav siv tungsten electrodes, muab tub lim hlau ua kom lub argon vuam txhuas.
Cov txheej txheem yuav tig lub teeb thiab cua txias chav tsev rau nws, ib tug nozzle nrog ib tug collet yas dhos thiab ib cov roj tog raj kheej. Hose nws yuav tsum txhim khu kev qha. Lub thawv yuav tsum tau muab nrog cov roj siab yuav txo tau cov iav.
Qhov no yog ua raws li los ntawm ib tug neeg los mus muab kev tiv thaiv. Qhov no vuam ntaub thaiv npog thiab daim npog qhov ncauj nrog Tinted iav, high-quality tawv. Cov tub txawg xav siv tam sim no tswj pedal. Rau ib beginner nws tsis yog ib tug tshwj xeeb lub caij tseem ceeb, vim hais tias cov kev xav tau them sai sai mus lwm yam.
Qhov zoo ntawm vuam argon
Vuam ntawm txhuas argon alternating tam sim no muaj ib tug xov tooj ntawm cov nta. Lawv paub qhov txawv no los ntawm lwm yam ntau ntau yam nrog rau txoj kev siv ntawm lub cev.
Argon vuam yuav tiv thaiv tau oxidation ntawm txhuas. Qhov no gas displaces oxygen. Qhov no mus kom ze yog ntau yam. Yuav luag tag nrho cov txhuas alloys yuav welded los ntawm no txoj kev.
Nyob rau hauv cov ntaub ntawv no, lub arc stability yuav tsum tau cai. Nqaws npaj siv cov tshuaj lo hlau rau Vuam txhuas argon, tau los ntawm kev siv zog zoo apparatus. Yog li ntawd, nyob rau hauv qhuav ntawm inverters tsuas muaj lub siab zoo los.
Tsuas yog zoo cov khoom yuav tsum tau siv kuj nyob rau hauv lub tsev. Qhov no yuav kom lub dag lub zog thiab durability ntawm cov khoom tiav.
tam sim no hom
Muab tub lim hlau rau Vuam txhuas argon nyob rau hauv tus ntawm lub fais arc melts thiab tsim ib tug sib koom. Nyob rau hauv cov ntaub ntawv no, cov kws txawj pom zoo kom siv cov alternating tam sim no. Qhov no yog vim lub cuab yeej ntawm tus txheej txheem.
Vuam ntawm txhuas argon DC rov qab polarity hom yuav ntxuav oxide zaj duab xis cathode txoj kev, tab sis nws yuav tsum tau zoo heev ntau zog vuam kub. Vim hais tias ntawm no txawm muaj zog tungsten electrodes pib tsis.
Direct tam sim no ncaj polarity tsuas yog tsis tau ua txhaum lub oxide zaj duab xis, tab sis yog tus arc nws yog ruaj khov. Yog li ntawd, tsuas yog switching lub polarity muaj peev xwm sawv ntawm muab high-zoo tshwm sim.
Cov kev npaj rau theem ntawm kev ua hauj lwm
Solder rau txhuas vuam argon dag tusyees thiab tau muaj zog leeg yog cov ntaub ntawv uas nto yog zoo npaj ua ntej yuav siv.
Ua ntej koj yuav mus degrease txhuas. Rau lub hom phiaj no lub hnyav, e.g., acetone los yog benzene. Ces, mechanically los yog sib ntxuav nto ntawm txhuas oxide. Tom qab cov ntaub ntawv uas muaj mus rau qhuav tawm yog tshwj xeeb txhais tau tias tau siv.
Mechanically oxide zaj duab xis yuav tsum ntxuav nrog ib tug txhuam nrog hlau fibers los yog ntwav txhuam ntoo. Qhov no txoj kev yuav tau mus thov nyob rau hauv tsev. Nyob rau hauv ntau lawm yog ib txwm nyiam tshuaj tu nrog. Lub txhuas nto yog raug rau etching nyob rau hauv alkali tshuaj, ntxuav nrog kub thiab dej txias, clarified, thiab thaum kawg qhuav.
txheej txheem kev cai
Aluminium vuam nrog argon rau beginners kauj ruam yog kauj ruam cov lus qhia uas yuav ua txoj hauj lwm nyob rau hauv tsev, thov refractory tungsten electrodes.
Lawv feem ntau yog ntxiv impurities uas ua rau kom lub dag lub zog thiab tsis zoo ntawm zaum kawg tshwm sim.
Lub ntsiab cai yuav tsum tau ua raws li nyob rau hauv lub chaw ua hauj lwm, yog qhov chaw ntawm lub hlau. Nws yuav tsum yeej ib txwm muaj nyob rau hauv pem hauv ntej ntawm lub electrode. Nws tau tsiv mus nyob tsuas nrog lub leeg.
Vuam nws tus kheej tej zaum yuav tsum tau ua nyob rau hauv ntau txoj haujlwm nyob rau hauv qhov chaw.
Yuav kom tswj cov txheej txheem thiab muaj peev xwm mus ua hauj lwm hauv high complexity, nyob rau hauv chav tsev adjusts lub zaus ntawm lub AC thiab tshuav nyiaj li cas.
tswv yim pom zoo ua
Kws txawj nco ntsoov tshwj xeeb tshaj yog txhuas vuam nrog argon, uas yuav tsum tau coj mus rau hauv tus account lub novice tswv.
Lub electrode yog nyob ze rau tus ua hauj lwm daim. Qhov no yuav pab mus rau tsim ntawm qhov tsawg kawg nkaus arc. Cov hlau yuav tsum tau noj zoo, txwv tsis pub coj mus rau cia li jerks txau khoom.
Arc stability kom ntsug txoj hauj lwm ntawm lub electrode. vuam ceev yuav tsum siab. Los ntawm no daim duab yuav nyob ntawm seb qhov zoo tshaj ntawm zaum kawg tshwm sim. Yuav kom ntxiv ib tug tus, check, ua ntej lub lag luam cov novice yuav tsum tau kawm nyob rau hauv cov kev txawj ntawm welding.
Instruction ntawm tus txheej txheem
Apparatus rau Vuam txhuas argon Ameslikas yuav siv sij hawm nyob rau hauv lub workpiece "hnyav". Nyob rau hauv nws sab laug tes, tus tswv yuav tsum muab cov hlau, thiab txoj cai - lub burner. Thaum lub khawm pressed tig lub tam sim no cov khoom thiab cov roj mov tau pib. Ntawm qhov chaw ntawm lub workpiece thiab lub electrode ib tug arc tshwm sim. Nws yuav yaj lub muab tub lim txhuas hlau thiab ntug kom paub meej. Nyob rau hauv cov ntaub ntawv no, rau ntawm qhov chaw pib los mam weld.
Rau tej tswv txheej txheem no yuav tsis yooj yim. Rau ib beginner nws yog ib qho tseem ceeb yuav tsum tau ib tug me ntsis xyaum.
Adhering rau cov lus qhia yog muab, raws li zoo raws li cov ob peb kev kawm muab cov tshuaj lo rau kev npaj mus xeem, txawm tias ib tug novice welder yuav ua li cas txoj hauj lwm heev nraaj.
noj
Ndlwg tus nqi ntawm argon nyob rau hauv lub vuam ntawm txhuas nyob rau hauv lub thickness ntawm cov muab tub lim hlau, thiab correspondingly tsub kom nws txoj kab uas hla. Cov pa roj txaus tus nqi yog muab los ntawm lub siab regulator ntab.
Yog hais tias cov hlau txoj kab uas hla yog lub 1 hli, lub argon yog yuav tsum tau 12-14 l / min. Los ua tus ntoo khaub lig seem ntawm cov tshuaj lo rau 1.2 hli, cov nqi ndlwg yuav 14-16 l / min. Rau txhuas hlau ntawm 1.6 hli inch inert roj yuav tsum tau 18-22 l / min.
Tom qab kaw ntawm lub vuam txoj kev yuav tsum Argon rau tej lub sij hawm mus ua rau ntawm qhov chaw ntawm lub workpiece. Qhov no yuav pab tiv thaiv cov leeg qhia thiab txias lub electrode.
Vuam semiautomatic tsis argon
Mus nqa tawm tej hom ntawm kev ua hauj lwm yuav tsum tau ua ntaub ntawv thov ib tug ntau dua kub weld pas dej ua ke. Nyob rau hauv xws li mob muaj yog tsis muaj semi-automatic Tig vuam ntawm txhuas argon. Helium yog siv rau txoj kev no. Qhov no gas muaj ib tug ntau dua thermal conductivity, uas yog ib qho zoo dua nyob rau hauv cov kev ntawm tuab-walled preforms.
Tsis muaj argon gas tso tawm yog ib tug xav paub ntau tshaj, thiab lub leeg yog tau suab tsis pores. Tsis tas li ntawd, qhov no technology yog siv thaum ua ib qhov tam sim no vuam txhuas. Qhov no txoj kev yog ntau, li ntawd nws yog siv ntau npaum li cas tsawg zaus.
Daim ntawv thov ntawm ntshiab Helium tsub kom tus nqi ntawm tus txheej txheem. Rau nqa tawm vuam rau ntawm phab ntsa los yog qab nthab ntawm xws li ib inert roj yog irreplaceable. Nws yog sib zog tshaj huab cua thiab argon. Thaum lub kim Helium, nws yog tej zaum tseem siv tau raws li ib lub tsev ua hauj lwm thiab tej welders.
Tom qab saib tus cwj pwm ntawm xws li ib tug txheej txheem technology raws li txhuas vuam nrog argon rau beginners kauj ruam yog kauj ruam cov lus qhia yuav coj koj mus txog tag nrho cov kauj ruam kom raug. Loj txog kev ua hauj lwm, kev kawm tag nrho cov nuances thiab subtleties ntawm nws, koj muaj peev xwm tsim nyob rau hauv tsev siab zoo welds, uas yuav kav ib lub sij hawm ntev. Qhov no yog ib tug yooj yim, tab sis lub luag hauj lwm mus kom ze phaaj tseem ceeb hab thiab nthuav.
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