1. Yintoni injongo yokufakwa kwentsimbi?
Impendulo: ① Nciphisa ubulukhuni bentsimbi kunye nokuphucula iplastiki, ukuze kube lula ukusika kunye nokulungiswa kokuguqulwa okubandayo;②Coca ingqolowa, iyunifomu ukubunjwa kwentsimbi, ukuphucula ukusebenza kwentsimbi okanye ukulungiselela unyango lobushushu elizayo;③Susa intsalela kwintsimbi yoxinzelelo lwangaphakathi ukunqanda ukuguquka kunye nokuqhekeka.
2. Yintoni ukucima?Yintoni injongo yayo?
Impendulo: Inkqubo yokushisa ubushushu bokufudumeza isiqwenga sentsimbi kwiqondo elithile lobushushu ngaphezu kwe-Ac3 okanye i-Ac1, ukuyigcina ixesha elithile, kwaye emva koko ukupholisa ngesantya esifanelekileyo ukufumana i-martensite okanye i-bainite ibizwa ngokuba yi-quenching.Injongo kukwandisa ubunzima, amandla kunye nokuxhatshazwa kwentsimbi.
3. Ziziphi iingenelo kunye nokungalunganga kwe-arc welding manual?
Impendulo: A. Izinto eziluncedo
(1) Inkqubo iyaguquguquka kwaye iguquguquke;(2) Uphawu oluhle;3) Kulula ukulawula i-deformation kunye nokuphucula uxinzelelo ngohlengahlengiso lwenkqubo;(4) Isixhobo silula kwaye kulula ukusebenza.
B. Izinto ezingeloncedo
(1) Iimfuno ze-welders ziphezulu, kwaye izakhono zokusebenza kunye namava abashicileli bachaphazela ngokuthe ngqo umgangatho weemveliso.
(2) iimeko zokusebenza ezimbi;(3) imveliso ephantsi.
4. Ziziphi iingenelo kunye nokungalunganga kwenkqubo ye-arc welding ephantsi kwamanzi?
Impendulo: A. Izinto eziluncedo
(1) Ukusebenza kakuhle kwemveliso.(2) Umgangatho olungileyo;(3) Gcina izinto kunye namandla ombane;(4) Ukuphucula iimeko zokusebenza kunye nokunciphisa amandla okusebenza
B. Izinto ezingeloncedo
(1) Ifanelekile kuphela kwi-welding ye-horizontal (prone) yendawo.(2) Kunzima ukuwelda isinyithi esine-oxidizing kakhulu kunye ne-alloys ezifana ne-aluminiyam kunye ne-titanium.(3) Isixhobo sinzima ngakumbi.(4) Xa umsinga ungaphantsi kwe-100A, uzinzo lwe-arc alulungile, kwaye alufanelekanga ukuwelda iipleyiti ezincinci ezinobunzima obungaphantsi kwe-1mm.(5) Ngenxa yobunzulu bedama elinyibilikisiweyo, inochuku kakhulu kwimingxuma.
5. Yiyiphi imigaqo jikelele yokukhetha i-groove?
Impendulo:
① Inokuqinisekisa ukungena kwe-workpiece (ubunzulu bokungena kwi-arc welding ye-arc ngokuqhelekileyo yi-2mm-4mm), kwaye ilungele ukusebenza kwe-welding.
②Imilo yegroove kufuneka kube lula ukuyiqhuba.
③ Phucula imveliso ye-welding kwaye ugcine iintonga ze-welding kangangoko kunokwenzeka.
④ Nciphisa i-deformation ye-workpiece emva kwe-welding kangangoko kunokwenzeka.
6. Yintoni i-weld shape factor?Yintoni ubudlelwane bayo kunye nomgangatho we-weld?
Impendulo: Ngexesha lokudibanisa i-weld, umlinganiselo phakathi kobubanzi be-weld (B) kunye nobukhulu obaliweyo (H) we-weld kwi-cross-section ye-weld-pass weld, oko kukuthi, ф=B/H, ibizwa ngokuba i-weld form factor.Incinci i-coefficient ye-weld shape, iyancipha kwaye inzulu i-weld, kwaye i-welds enjalo ixhomekeke kwi-pore slag inclusions kunye nokuqhekeka.Ngoko ke, i-weld shape factor kufuneka igcine ixabiso elithile.
7. Ziziphi izizathu ze-undercut kunye nendlela yokukhusela?
Impendulo: Izizathu: ikakhulu ngenxa yokukhethwa okungafanelekanga kweeparameters zenkqubo ye-welding, i-welding current kakhulu, i-arc ende, isantya esingafanelekanga sokuthutha kunye neentonga ze-welding, njl.
Indlela yokuthintela: khetha i-welding echanekileyo yangoku kunye nesantya se-welding, i-arc ayinakolulwa ixesha elide, kwaye uphathe indlela echanekileyo kunye ne-angle yokuthutha umcu.
8. Ziziphi izizathu kunye neendlela zokuthintela ubungakanani bomphezulu we-weld ungahlangabezani neemfuno?
Impendulo: Isizathu kukuba i-angle ye-groove ye-weldment ayilungile, i-gap yendibano ayilingani, isantya se-welding asifanelekanga okanye indlela yokuthutha i-strip ayilungile, intonga ye-welding kunye ne-angle ayikhethwa ngokungafanelekanga okanye itshintshiwe.
Indlela yokuthintela Khetha i-engile yegroove efanelekileyo kunye nokukhutshwa kwendibano;ngokuchanekileyo ukhethe iiparameters zenkqubo ye-welding, ngakumbi ixabiso langoku le-welding kwaye wamkele indlela yokusebenza efanelekileyo kunye ne-angle ukuqinisekisa ukuba ubume be-weld bufana.
Ixesha lokuposa: May-31-2023