15. Yintoni umsebenzi oyintloko we-gas welding powder?
Umsebenzi oyintloko we-welding powder kukwenza i-slag, ephendula ngee-oxide zetsimbi okanye ukungcola okungeyona isinyithi kwi-pool etyhidiweyo ukuvelisa i-slag etyhidiweyo. Kwangaxeshanye, i-slag etyhidiweyo etyhidiweyo igubungela umphezulu wedama elityhidiweyo kwaye ihlukanise ichibi elityhidiweyo emoyeni, ngaloo ndlela ithintela isinyithi esityhidiweyo sechibi ukuba sifakwe kwi-oxidized kumaqondo aphezulu obushushu.
16. Ziziphi iindlela zenkqubo yokuthintela i-weld porosity kwi-arc welding manual?
impendulo:
(1) Intonga ye-welding kunye ne-flux kufuneka igcinwe yomile kwaye yomiswe ngokwemigaqo ngaphambi kokusetyenziswa;
(2) Imiphezulu yeengcingo ze-welding kunye ne-weldments kufuneka igcinwe icocekile kwaye ingenamanzi, ioli, i-rust, njl.
(3) Khetha ngokuchanekileyo iinkcukacha ze-welding, ezifana ne-welding current ayifanele ibe mkhulu kakhulu, isantya se-welding kufuneka sibe sifanelekileyo, njl.;
(4) Sebenzisa iindlela ezichanekileyo ze-welding, sebenzisa i-alkaline electrode ye-alkaline ye-arc welding, i-short arc welding, ukunciphisa i-swing amplitude ye-electrode, ukunciphisa isantya sokuthutha intonga, ukulawula i-arc emfutshane ukuqala kunye nokuvala, njl.;
(5) Lawula i-gap yendibano yee-weldments ukuba ingabi nkulu kakhulu;
(6) Musa ukusebenzisa i-electrode ezineentsimbi eziqhekekileyo, ezixotyulwe, zonakaliswe, zingena ngaphakathi okanye zineentsimbi ze-welding ezidlekileyo.
17. Yeyiphi imilinganiselo ephambili yokuthintela amabala amhlophe xa welding cast iron?
impendulo:
(1) Sebenzisa i-graphitized welding rods, oko kukuthi, sebenzisa i-cast iron welding rods kunye nenani elikhulu lezinto ze-graphitizing (ezifana nekhabhoni, i-silicon, njl. njl.) ezifakwe kwipeyinti okanye i-welding wire, okanye sebenzisa i-nickel-based kunye ne-copper-based. iintsimbi zokuwelda intsimbi;
(2) Ukushisa ngaphambi kokushisa, gcina ubushushu ngexesha le-welding, kunye nokupholisa okucothayo emva kwe-welding ukunciphisa izinga lokupholisa kwindawo ye-weld, ukwandisa ixesha lokudibanisa indawo ebomvu, i-graphitize ngokupheleleyo, kunye nokunciphisa uxinzelelo lwe-thermal;
(3) Sebenzisa inkqubo yokubrawuza.
18. Chaza indima ye-flux kwinkqubo ye-welding?
Kwi-welding, i-flux yeyona nto iphambili yokuqinisekisa umgangatho we-welding. Inemisebenzi elandelayo:
(1) Emva kokuba umsinga unyibilika, udada phezu komphezulu wesinyithi esinyibilikisiweyo ukukhusela ichibi elinyibilikayo nokuthintela ukhukuliseko olubangelwa ziigesi eziyingozi ezisemoyeni.
(2) I-flux inemisebenzi ye-deoxidizing kunye ne-alloying, kwaye isebenzisana ne-welding wire ukuze ifumane ukubunjwa kweekhemikhali ezifunekayo kunye neepropati ze-mechanical weld metal.
(3) Yenza i-weld yenziwe kakuhle.
(4) Ukunciphisa izinga lokupholisa isinyithi esinyibilikisiweyo kunye nokunciphisa iziphene ezifana neepores kunye ne-slag inclusions.
(5) Thintela ukutshiza, ukunciphisa ilahleko, kwaye uphucule i-welding coefficient.
19. Yeyiphi imiba ekufuneka inikwe ingqwalasela xa usebenzisa kwaye ugcina oomatshini be-arc welding we-AC?
(1) Kufuneka isetyenziswe ngokuhambelana ne-welding yangoku kunye nobude bexesha lomthwalo we-welding machine, kwaye musa ukulayisha ngaphezulu.
(2) Umatshini we-welding awuvumelekanga ukuba ube yi-short-circuited ixesha elide.
(3) Umsinga olawulayo kufuneka usebenze ngaphandle komthwalo.
(4) Ngalo lonke ixesha khangela unxibelelwano lwecingo, i-fuses, i-grounding, iindlela zokulungisa, njl. kwaye uqinisekise ukuba zikwimeko efanelekileyo.
(5) Gcina umatshini wokuwelda ucocekile, womile kwaye ungena umoya ukuze uthintele uthuli kunye nemvula ekungeneni.
(6) Yibeke ngokuzinzileyo kwaye ucime unikezelo lombane emva kokuba umsebenzi ugqityiwe.
(7) Umatshini wokuwelda kufuneka uhlolwe rhoqo.
20. Zeziphi iingozi zokuqhekeka kwamathambo?
Impendulo: Ngenxa yokuba i-brittle fracture yenzeke ngokukhawuleza kwaye ayinakufunyanwa kwaye ithintelwe ngexesha, xa isenzeka, iziphumo ziya kuba zibi kakhulu, kungekhona nje ukubangela ukulahlekelwa okukhulu kwezoqoqosho, kodwa nokubeka ubomi bomntu engozini. Ke ngoko, i-brittle fracture yezakhiwo ezidibeneyo yingxaki ekufuneka ithathelwe ingqalelo.
21. Iimpawu kunye nokusetyenziswa kweplasma yokutshiza?
Impendulo: Iimpawu zokutshiza i-plasma kukuba ukushisa kwelangatye le-plasma kuphezulu kwaye kunokunyibilika phantse zonke izinto eziphikisayo, ngoko zinokutshizwa kwizinto ezininzi. Isantya somlilo weplasma siphezulu kwaye isiphumo sokukhawulezisa samasuntswana silungile, ngoko ke amandla okubopha i-coating aphezulu. Inoluhlu olubanzi lokusetyenziswa kwaye yeyona ndlela ilungileyo yokutshiza izixhobo ezahlukeneyo ze-ceramic.
22. Ithini inkqubo yokulungiselela ikhadi lenkqubo ye-welding?
Impendulo: Inkqubo yokulungiselela ikhadi lenkqubo ye-welding kufuneka ifumane uvavanyo lwenkqubo ye-welding ehambelanayo ngokusekelwe kwimizobo yendibano yemveliso, imidwebo yokucubungula iinxalenye kunye neemfuno zabo zobugcisa, kwaye udwebe umzobo odibeneyo olula; inombolo yekhadi lenkqubo yokuwelda, inombolo yomzobo, igama elidityanisiweyo, inombolo edibeneyo, inombolo yesiqinisekiso senkqubo yokuwelda kunye nezinto zesatifikethi se-welder;
Lungiselela ulandelelwano lwe-welding ngokusekelwe kuvavanyo lwenkqubo ye-welding kunye neemeko zangempela zokuvelisa, izinto zobugcisa kunye namava okuvelisa; lungiselela iiparameters zenkqubo ye-welding esekelwe kuvavanyo lwenkqubo ye-welding; misela i-arhente yokuhlolwa kwemveliso, indlela yokuhlola, kunye nomlinganiselo wokuhlola ngokusekelwe kwiimfuno zomzobo wemveliso kunye nemigangatho yemveliso. .
23. Kutheni kufuneka songeze inani elithile le-silicon kunye ne-manganese kwi-welding wire ye-carbon dioxide gas shielded welding?
Impendulo: Ikharbhon diokside yigesi eneoksijini. Ngethuba lenkqubo ye-welding, i-welding metal elements iya kutshiswa, ngaloo ndlela inciphisa kakhulu i-mechanical properties of the weld. Phakathi kwabo, i-oxidation iya kubangela iipores kunye ne-spatter. Yongeza i-silicon kunye ne-manganese kwi-welding wire. Inomphumela we-deoxidizing kwaye inokusombulula iingxaki ze-welding oxidation kunye ne-spatter.
24. Ungakanani umda wokugqabhuka kwemixube enokutsha, yaye ziziphi izinto eziwuchaphazelayo?
Impendulo: Uluhlu loxinaniso apho irhasi enokutsha, umphunga okanye uthuli oluqulethwe kumxube onokutsha lunokwenzeka lubizwa ngokuba ngumda wokudubula.
Umda osezantsi woxinaniso ubizwa ngokuba ngumda osezantsi wokudubula, kwaye umda ophezulu woxinaniso ubizwa ngokuba ngumda wokudubula ongaphezulu. Umda wokudubula uchatshazelwa zizinto ezifana nobushushu, uxinzelelo, umxholo weoksijini, kunye nedayamitha yesikhongozeli. Xa izinga lokushisa linyuka, umda wokudubula uyancipha; xa uxinzelelo lukhula, umda wokuqhuma uyancipha kwakhona; xa ukuxinwa kwe-oksijini kwigesi edibeneyo inyuka, umda ophantsi wokuqhuma uyancipha. Kuthuli olunokutsha, umda walo wokudubula uchatshazelwa zizinto ezifana nokusasazeka, ukufuma, kunye nobushushu.
25. Ngawaphi amanyathelo ekufuneka athathwe ukuthintela ukothuka kombane xa welding kwibhoyila imigqomo, condenser, iitanki yeoli, iitanki oyile kunye nezinye izitya metal?
Impendulo: (1) Xa bewelda, abaweldi bafanele bakuphephe ukudityaniswa ngamalungu entsimbi, beme phezu kweemethi zerabha ezikhuselayo okanye banxibe izihlangu ezikhuselayo zerabha, yaye banxibe iimpahla ezomileyo zokusebenza.
(2) Kufuneka kubekho umlindi ngaphandle kwesikhongozeli okwaziyo ukubona nokuva umsebenzi we-welder, kunye nokutshintsha ukunqumla umbane ngokuhambelana nomqondiso we-welder.
(3) Amandla ombane kwizibane zasesitalatweni ezisetyenziswa kwizikhongozeli kufuneka angagqithi kwi-12 volts. Igobolondo ye-transformer yokukhanya ephathekayo kufuneka isekelwe ngokuthembekileyo, kwaye i-autotransformers ayivumelekanga ukuba isetyenziswe.
(4) I-transformers yezibane eziphathekayo kunye ne-welding transformers ayivumelekanga ukuba iqhutywe kwiibhoyili kunye nezitya zetsimbi.
26. Ukwahlula njani phakathi kwe-welding kunye ne-brazing? Ziziphi iimpawu zento nganye?
Impendulo: Uphawu lwe-fusion welding yi-bonding yee-athomu phakathi kweengxenye ze-welding, ngelixa i-brazing isebenzisa i-medium medium kunye ne-melting point ephantsi kuneendawo ze-welding - izinto zokuqhafaza ukudibanisa iinxalenye ze-welding.
Inzuzo ye-fusion welding kukuba iipropati ze-mechanical ze-joint welded ziphezulu, kwaye imveliso xa udibanisa iindawo ezinzima kunye ezinkulu ziphezulu. Ukungalungi kukuba uxinzelelo kunye nokuguqulwa okwenziwe kukhulu, kwaye utshintsho lwesakhiwo lwenzeka kwindawo echaphazelekayo ukushisa;
Izixhobo zokuwelda iXinfa zineempawu zomgangatho ophezulu kunye nexabiso eliphantsi. Ngeenkcukacha, nceda undwendwele:Abavelisi beWelding & Cutting-China Welding & Cutting Factory & Suppliers (xinfatools.com)
Iingenelo zokuqhafaza ziphantsi kobushushu bokufudumala, i-flat, i-joints egudileyo, ukubonakala okuhle, uxinzelelo oluncinci kunye nokuguqulwa. Ukungalungi kwe-brazing amandla aphantsi adibeneyo kunye neemfuno eziphezulu ze-gap ngexesha lokuhlanganisa.
27. Igesi yeCarbon dioxide kunye ne-argon gas zombini ziigesi ezikhuselayo. Nceda uchaze iipropati kunye nokusetyenziswa kwazo?
Impendulo: Ikharbhon diokside yigesi eneoksijini. Xa isetyenziswe njengegesi ekhuselayo kwindawo ye-welding, iya ku-oxidize ngobudlova amaconsi kunye nesinyithi kwi-pool etyhidiweyo, ebangela ukulahlekelwa okuvuthayo kwezinto ze-alloy. Ukuqhubekeka kubi, kwaye iipores kunye nokutshiza okukhulu kuya kuveliswa.
Ngoko ke, ingasetyenziselwa kuphela ukuwelda intsimbi ephantsi yekhabhoni kunye nentsimbi ephantsi ye-alloy okwangoku, kwaye ayifanelekanga ukuwelda intsimbi ephezulu ye-alloy kunye neentsimbi ezingenayo i-ferrous, ngakumbi isinyithi esingenasici. Ekubeni kuya kubangela i-carbonization ye-weld kunye nokunciphisa ukuchasana ne-intercrystalline corrosion, isetyenziselwa Fumana ngaphantsi.
IArgon yigesi engasebenziyo. Ngenxa yokuba ayisebenzi ngokwekhemikhali ngesinyithi esityhidiweyo, ukubunjwa kweekhemikhali ze-weld akutshintshi. Umgangatho we-weld emva kwe-welding ulungile. Ingasetyenziselwa ukuwelda iintsimbi ezahlukeneyo zealloy, intsimbi engatyiwayo kunye neentsimbi ezingenayo i-ferrous. Ngenxa yokuba ixabiso le-argon liyancipha ngokuthe ngcembe, ngoko ke lisetyenziselwa ubuninzi bentsimbi yentsimbi.
28. Chaza i-weldability kunye neempawu ze-welding zentsimbi ye-16Mn?
Impendulo: I-16Mn insimbi isekelwe kwi-Q235A yensimbi malunga ne-1% Mn eyongeziweyo, kunye ne-carbon elingana ne-0.345% ~ 0.491%. Ke ngoko, ukusebenza kwe-welding kungcono.
Nangona kunjalo, ukuthambekela kokuqina kukhulu kancinci kunokwentsimbi ye-Q235A. Xa i-welding kunye neeparitha ezincinci kunye ne-weld encinci idlula kwi-thickness enkulu kunye nesakhiwo esikhulu esiqinileyo, ii-cracks zingenzeka, ngakumbi xa u-welding phantsi kweemeko zokushisa eziphantsi. Kule meko, amanyathelo afanelekileyo anokuthathwa ngaphambi kwe-welding. umhlaba preheating.
Xa i-arc welding yesandla, sebenzisa i-electrodes yebakala le-E50; xa ukuwelda kwe-arc okuzenzekelayo kungadingi beveling, ungasebenzisa i-H08MnA i-welding wire kunye ne-flux 431; xa uvula ii-bevels, sebenzisa i-H10Mn2 i-welding wire kunye ne-flux 431; xa usebenzisa i-CO2 yegesi ekhuselekileyo ye-welding, sebenzisa i-welding wire H08Mn2SiA Okanye i-H10MnSi.
Ixesha lokuposa: Nov-06-2023
