Indlela ukupheka ilungelo okuzenzelekayo? Indlela ukupheka isixhobo okuzenzelekayo ngaphandle gas?

Welding ngomnye manqanaba kakhulu zombini imveliso mveliso namashishini amancinane. Asimele silibale malunga nokubaluleka kwazo nomba nokuba banal ukulimela. Kuzo zonke ezi meko, umgangatho welding rhoqo kuxhomekeke kuphela kwi ukuthembeka yokusebenza imveliso siphelile, kodwa kwakhona ukhuseleko lwabantu abasebenzisa ngayo.

Ingakumbi oomatshini ethembekileyo ukuwelda qualitative semi-automatic welding lwenziwa kwi umoya igesi egalelwe. Ngaba uyazi ukuba ukupheka njani okuzenzelekayo? Namhlanje, sincokola nje ngayo.

imiba ngokubanzi

Ngokubanzi, le nkqubo yenye iintlobo-ntlobo ezininzi Classic arc welding. Ekubeni ukuqina kwayo iphezulu kakhulu ngaphezu koko i electrode, inxalenye enkulu amandla yakhululwa isithuba esirhangqe arc zaphela phezu weldable kunye electrode ngokwayo, ngaloo ndlela bakha ebizwa ngokuba yi-ibhafu welding.

Emva kokuba uxhulumaniso lupholile kunye zakristallizuetsya wambumba weld lona langoku inqanaba lophuhliso bugcisa ingqalelo le ndlela inokuthenjwa iindawo ngokudibeneyo metal.

Imigaqo ezisisiseko iwelding okuzenzelekayo

Ngokungafaniyo classical arc welding, kwinkqubo ingqalelo koyisa ukuba izinto ezimbini: (wire ukuwelda) electrode kunye negesi egalelwe, olukhusela pool weld. Ngaphambi ukupheka semi-automatic, eyesibini enqwenelekayo kakhulu ukuthenga ngokwaneleyo.

Le meko yokugqibela ibaluleke kakhulu. Isibakala sokuba weld uzame zonke iindlela ukuze ukusuka intsebenziswano kunye bume engqongileyo oksijini ngexesha lokusebenza: okokuqala, kungenjalo ligwebu lentsimbi nonke niphela kakhulu ibunjiwe, kwaye umphezulu uxhulumaniso iba zimbi. Okwesibini, i-metal weld kukho isixa omkhulu oxides leyo kakubi kuchaphazela umgangatho entlanganweni ogqityiweyo. Kungenxa yoko le nto nge welding ngokubanzi argon kunye carbon dioxide.

Inkcazo-oganogram inkqubo iwelding

Ukuze ufunde ukupheka isixhobo okuzenzelekayo, kubalulekile ukucinga imigaqo engundoqo yomsebenzi wakhe.

Ngexesha welding, electrode (ucingo) udlula esatsiba inkcukacha, apho Inyibilikile ngenxa kwiqondo lobushushu eliphezulu arc. Ekubeni wire welding sidla rhoqo, kunokwenzeka ukuba kuzuzwe umgangatho rhoqo nesantya inkqubo. Isalathiso nesantya ekhethiweyo ngesandla. Landela lokondla rhoqo kwesi electrode kwakhona uwela kopi. In ulwahlulohlulo ngamazwe, le nkqubo ibizwa ngokuba GMAW (metal gas arc welding). Ukwahlula segesi ngendlela igesi egalelwe okanye esebenzayo.

Le yokugqibela kusetyenziswa kwezo meko apho iimpawu intsimbi akavumeli ukuphumeza ezinye iimpawu ezikhethekileyo weld. Apha ukupheka okuzenzelekayo ngayo.

Yintoni efunekayo kule izixhobo?

Ikhiti kufuneka iquke izixhobo ngokwayo kopi weld umthombo lwangoku, ucingo ezingena kweyona migaqo mikhulu, kunye nesilinda negesi. Devices yolu hlobo ziyafumaneka kwiinguqulelo eziphathwayo, kwakunye isisu semoto ukusetyenziswa entsimini. Ngoko ukufunda ibile indlela isixhobo okuzenzelekayo hlobo kunzima umsebenzi zivumelekile kuphela abo abanikwe imiyalelo eziyimfuneko.

Ziintoni iimpawu ze izixhobo ezahlukeneyo eqhelekileyo le hlobo?

• Amandla we-40 ukuya 600 A.
• Kwiimeko ezininzi ombane arc welding ukususela nge-16 ukuya kuma-40 V.
• Zibanjwa Isantya isicatshulwa isahlulo sibe ukuya kwi-2 cm ngomzuzu.
• Ngeenjongo ezahlukeneyo kunye nezinto ezisetyenziswa wire kabani ubukhulu yi mm 0.5 ku-3.
• Isantya yesibini ukususela-30 ukuya kuma-250 mm electrode.
• izinga Flow ze gesi egalelwe unako ukufikelela iilitha 60 ngomzuzu. Ixabiso lincinane uthathwa kungena neelitha ezintathu ngomzuzu.
• Kumatanki welding omnye obekwe 100 iilitha irhasi egalelwe okanye izidubuli.

uhlobo olukhethwa feeder

oomatshini welding semi-oluzenzekelayo yahluke kakhulu indlela leli isixhobo lokondla ucingo electrode, ukuze ngawo lo mzuzu ukuba sibe sisihikahika. In lwalo ixhaphakileyo, uhlobo Pusher: lwenza lula kakhulu uyilo zisiza; kodwa kule meko ubude ithumbu lokondla igesi silinganiselwe ukuya eziimitha ezintathu. ukusetyenziswa ngcono loyilo okuwisa: lo mbhobho na kule meko kunokuba ukuya ku 20 eemitha.

Ngaphambi kokuba uthenge izinto zentsimbi kufuneka sinikele ingqalelo kakhulu sokukhuphela. Ekubeni amanzi esatsiba na isici ngenkankulu unxiba kuphela ngokukhawuleza, oko kufuneka kwenziwe njengoko ngokomgangatho eyenziweyo. Nceda qaphela ukuba ngexesha ukuwelda imfuneko ukucoca rhoqo kuyo ozuza etheza zeBlack. Kakhulu ukubukela kakuhle kwincam karhulumente, njengoko kunjalo kwimeko umonakalo umgangatho welding lwehla.

Okubalulekileyo! Phambi ukupheka steel stainless semi-automatic, athenge iikiti indawo. On wire steel stainless kwaye kushiya enkulu igesi egalelwe. Kuba welding yayo ifuna eyomeleleyo arc yombane, i but is ngamandla umlomo eshushu unxiba phandle ngokukhawuleza.

Ziziphi izinto kufuneka zisetyenziswe umsebenzi?

Njengoko sele kukhankanyiwe, ucingo ingasetyenziswa ukusuka mm 0.5 ukuya 3 zamafu. Kunokuba yinto nje ukubhitya, njengokutsha ngcono arc, i nzulu kwii-umbandela welding. Qaphela ukuba kunokwenzeka ukuba ukusebenzisa i electrode ububanzi 3 mm, kodwa elowo millimitha "extra" kufuneka akhawunti ezongeziweyo amperes 100.

igesi egalelwe lungasetyenziswa nokuba olunyulu okanye kwimixube. sokuqukuqela serhasi Umyinge ngokulula ukubala, ukwazi uqina kwe sicatshulwa kwindawo ukuphathwa kunye nokusetyenziswa ezithile ezisetyenziswa leyo zingafumaneka kwiincwadana ukuya iwelding efanelekileyo.

A isuntswana kul kunye ombane

Kakade ke, amandla ngoku kuxhomekeke Ebubanzini umbandela nge welding, yaye ububanzi we wire esetyenzisiweyo. Ebubanzini inkulu, ubunzulu elalana kweencwadi kunye nemveliso jikelele kangako. Le ombane ngasentla, i nzulu kwii-intsimbi. Nakuba kunjalo, kufuneka sikhumbule ukuba oku kwandisa isixa umbandela anyukayo SLAG, yaye ububanzi ehlohla kwandisa kakhulu. Le ombane umiselwe amandla yangoku. ulwazi oluninzi ukuba kufunyanwa imiyalelo kumatshini welding.

Umlinganiselo feed electrode imiselwe isekelwe phezu iimpawu eziphathekayo kunye efunekayo amandla weld. Ixesha welding ixhomekeke Ebubanzini umbandela ezidityanisiweyo, naphezu umthungo ububanzi elindelweyo. Ngesantya esiphezulu, ngoko Siyaleza ngamandla uku ukwenza unxibelelwano kuphela mxinwa kuba xa ufumana beentanda ebanzi ukuhambisana umgangatho elizothe yaye isixa esikhulu yintlenge.

O isantya sokuqukuqela serhasi

Kwicingo liyajiya, irhasi egalelwe ngakumbi walidla ukukhusela kumphezulu izinto eziza nge welding. isantya sokuqukuqela Lower ukuze ngakumbi ambathe licinezelwe sokukhuphela umlomo kumphezulu emsebenzini, okanye ukunciphisa isantya ukuwelda izinto eziqhelekileyo. Isilumkiso! Ukuba ungayibaxi nesantya (ukwanda yona ngenxa yokukhula kwemveliso), incam esatsiba aye ngaphaya weld pool, ekucaca ukuba igcwala olukhawulezisiweyo baze kutshabalalisa kuyo.

ukusebenza oluchanekileyo i electrode

kakhulu inkqubo welding uzinzile ixhomekeke imveliso kunye nokusetyenziswa ngesantya wire welding. Ukubuya ngaphezulu, i arc uba ngaphantsi izinzile. Ukongeza, kule meko, isixa esikhulu sezixhobo zokufunda iya isikali. Oku kubangelwa ubukhulu becala ngenxa yenyaniso yokuba indawo ye weld ichibi kabukhali kuyehla, incam nezinto ngokwayo iqalisa oxidize ngokukhawuleza. Ukuba moya encinane kakhulu, kabukhali ziyonakala ukubonakala ngexesha ukuwelda.

aluminium ukupheka

Indlela ukupheka aluminiyam semi-oluzenzekelayo? Aluminium - metal iikhemikhali egalelwe, njengoko umphezulu waso a amalgam zamafu. Ukuze ayitshise, kufuneka i arc enamandla. I electrode isebenzisa obhityileyo wire aluminiyam. Ngokuyimfuneko (!) Kufuneka ukuba usebenzise yegesi egalelwe, njengoko ukufikelela incinane mpilo amalgam nangoko ibuyiselwe.

izincomo ezibaluleke

Ukuba apheke zesinyithi ezicekethekileyo, ngokuqinisekileyo ukugcina nokuhlangana kwayo, ukusuka phezulu ukuya ezantsi. Le umthungo kuyimfuneko ukwenza banciphe kangangoko kunokwenzeka, ekubeni kulo mzekelo balo babulingana nesandla buthi efanayo macala omabini. Ukuba wenza unxibelelwano ebanzi kakhulu, kuya kwenza kube nzima ukwazi ukuphepha izinto wokukhusela-nge. Ukuze kungonakali na umbandela, kucetyiswa ukuba kuzakwandisa isantya welding, ngelixa kuncitshiswa ombane ye welding yangoku.

Xa kunjalo, xa upheka ngenxa impahla exhaswa, ukunikezela kangangoko kunokwenzeka ngokucindezela yayo tight. Isibakala sokuba le arc leyo kumo ngamandla kakhulu intsimbi, nto leyo ubukhulu sheets ayo esezantsi kuqala sigobe kakhulu ngenxa deformation thermal. Ukunciphisa ukubonakala esi siphumo ngokwasemzimbeni, agobe amalungu ingaphakathi ecaleni. Ngoko ukupheka okuzenzelekayo le ndlela kunokuba nzima, thatha embalwa welds uvavanyo phambi komsebenzi.

Ukuba isiseko metal abangaphezu kwe-1.5 mm balo babulingana nesandla, wacebisa ukuba bavelise umsebenzi ubunzima. Ngaloo Sazisa ngamandla ebeka i electrode kwindawo nkqo, ukuqondana kanye webhate. Segesi metal zenza milimitha 1.3 ukuya kwezi-2, khetha iindlela ukuze umthungo wafumana ubuninzi enye indima. Ngaphambi ukupheka umatshini okuzenzelekayo, qiniseka ukuba ukunyenyisa iinkcukacha omnye komnye, phawula ngobume bomsebenzi: umzimba kulula ukuchitha, ngoko kuyimfuneko ukuba ukusebenza ngenyameko.

Ukuba izikhewu phakathi kwezahlulo abagulayo-gingci mikhulu kakhulu, kucetyiswa ukuba maluqhutywe ngolu hlobo: ukuba weld phezulu phantsi, experiment kunye nomculo ngamandla, kwakunye amaxesha ngamaxesha ukuba ume umsebenzi, ukunika amacandelo ogqityiweyo ukuba bomelele. Sikhumbula once more: phambi ukupheka kakuhle isixhobo okuzenzelekayo, kungakuhle ukuba ukunyenyisa iinkcukacha omnye komnye. Uya kuchitha impela, bawela kwexesha, kodwa inkqubo iwelding iya kuba ngokukhawuleza kakhulu.

Cook metal ngaphandle kokusebenzisa zegesi egalelwe

Konke oku kungentla isebenziseka ukuwelda isinyithi kwimeko-bume igesi egalelwe. Kodwa wenza ntoni ngaloo mzekelo xa nje wena ube namandla okanye izibonelelo ukuthenga iisilinda ukupheka okuzenzelekayo ngaphandle gas? Ingakumbi kwezi meko, abenzi ukuvelisa iindidi ezizodwa ukuwelda ucingo.

Xa imveliso yayo kusetyenziswa iindlela ezimbini: ukuphehla kumbhobho zesinyithi ezicekethekileyo okanye amacandelo obhobhozayo esayo ngqo electrode metal.

Yintoni okulungileyo wire? Yonke into yemvelo: xa ekubhobhozeni yombane uqala ukunyibilika ngeenxa zonke ilifu weld bath wabumba kwabo izakhi eziyinxalenye wobhobhozayo. Ngenxa yoko, irhasi egalelwe ithathwa classic ukususela ekubhobhozeni elinyukayo ikhusela izinto weld ayikho mandundu kakhulu.

Apha ukupheka ngaphandle okuzenzelekayo igesi.

A kancinci ngokhuseleko

kuba Inqaku yethu ngokupheleleyo ukuba akazange athethe iimfuno zokhuseleko. Khumbula ukuba TB ngexesha arc kufuna ukudalwa ubuncinane ummandla ezilishumi-ukhuseleko ehlabathini jobsite. Ukuba umgama ingaphantsi, ngoko kukho abantu nzulu emngciphekweni ukutsha kakhulu retina. Ukuze ufunde okungakumbi malunga nemimiselo ethile kunye nemithetho, kufuneka ufunde ngenyameko imiyalelo izixhobo zakho.

Ingcali ngokuyimfuneko kufuneka asebenzise izixhobo zakho, ngokucophelela zonke izixhobo ezikhoyo phambi kokuba uqale. Akuvunyelwe ngokungqongqo ukuqala welding, ukuba ukubonakala ubuncinane enye ukusilela ngomatshini okanye umbane. khumbula Ngalo lonke ixesha ukuba umsebenzi welding ngumthombo eyandileyo ingozi komlilo.

Ekubeni ukupheka izixhobo iwelding okuzenzelekayo kudla kuyimfuneko kwiindawo isusiwe ukusuka kwindawo yomsebenzi zonke izinto ezinokutsha.

iziphumo

Xa ndiqukumbela, kufuneka wathi umgangatho weld endibufumeneyo ophezulu kuphela kwimeko apho phezu iinxalenye phambi abasebenza zalungisa ngenyameko ukusuka ukungcola grease. Ukongeza, indima enkulu edlalwa lingekatshoni esichanekileyo izixhobo: ukuba ungayibaxi ngamandla, ungenza aqhumisele ngalo iimakhishithi yesinyithi. Khetha ukwenza umsebenzi ngokucothayo - amalungu kusenokwenzeka ayichananga ngokubanzi kunye ukubonakala eninzi yintlenge.

Ekugqibeleni, ishiya inxalenye metal ngokwayo kuphela. Njengokuba besesitshilo ngasentla, izinga inegalelo yokonakala yokuqala esatsiba inkcukacha, kunye nezinye iinkcukacha ezibalulekileyo kumatshini welding. Kubalulekile ukukhumbula oku phambi kokuba ukupheka machine okuzenzelekayo: a ubukhulu umzimba metal ezizodwa ezahlukeneyo, ngoko itsha nge.