I-Welding yinkqubo apho izinto ze-workpieces zidityaniswe (ezifanayo okanye iintlobo ezahlukeneyo) zidityaniswe ngokufudumeza okanye uxinzelelo okanye zombini, kunye okanye ngaphandle kwezinto zokuzalisa, ukwenzela ukuba izinto ze-workpieces ziboshwe phakathi kwe-athomu ukwenza isigxina. uqhagamshelwano. Ngoko ke ngawaphi amanqaku aphambili kunye nezilumkiso zokuwelda intsimbi yentsimbi?
Izixhobo zokuwelda iXinfa zineempawu zomgangatho ophezulu kunye nexabiso eliphantsi. Ngeenkcukacha, nceda undwendwele:Abavelisi beWelding & Cutting-China Welding & Cutting Factory & Suppliers (xinfatools.com)
Zeziphi ii-electrode ezisetyenziselwa ukuwelda intsimbi engatyiwayo?
Iintsimbi zokuwelda zentsimbi zinokwahlulwa zibe yintsimbi ye-chromium yokuwelda intsimbi kunye ne-chromium-nickel yentsimbi yentsimbi. Ezo ntlobo zimbini zeentonga ze-welding ezihlangabezana nomgangatho wesizwe ziya kuvavanywa ngokwemigangatho yesizwe ye-GB/T983-2012.
I-Chromium insimbi engenasici ine-corrosion resistance resistance (i-acids oxidizing, i-organic acids, i-cavitation), ukumelana nobushushu kunye nokumelana nokubola. Ngokuqhelekileyo zikhethwe njengezixhobo zezixhobo zezikhululo zamandla, ishishini lemichiza, i-petroleum njalo njalo. Nangona kunjalo, i-chromium insimbi engenasici ngokubanzi ine-weldability engalunganga, ngoko ke ingqwalasela kufuneka ihlawulwe kwinkqubo ye-welding, iimeko zokunyanga ubushushu kunye nokukhethwa kweentonga ezifanelekileyo ze-welding.
Iintsimbi ze-Chromium-nickel zentsimbi yokuwelda zinokumelana nokugqwala okuhle kunye nokumelana ne-oxidation kwaye zisetyenziswa kakhulu kwishishini lemichiza, isichumisi, i-petroleum, kunye nokuveliswa koomatshini bezonyango. Ukuze kuthintelwe i-intergranular corrosion ngenxa yokufudumala, i-welding current ayifanele ibe mkhulu kakhulu, malunga ne-20% ngaphantsi kwe-carbon steel electrode. I-arc ayifanele ibe yinde kakhulu, kwaye i-interlayers iya kupholisa ngokukhawuleza. I-weld bead emxinwa ifanelekile.
Amanqaku aphambili kunye nezilumkiso ze-welding steel stainless
1. Sebenzisa unikezelo lwamandla kunye neempawu zangaphandle ezithe nkqo, kwaye usebenzise i-polarity elungileyo ye-DC (intambo ye-welding iqhagamshelwe kwipali engalunganga)
1. Ngokuqhelekileyo ifanelekile ukuwelda iipleyiti ezincinci ezingaphantsi kwe-6mm. Ineempawu ezintle ze-welding seam shape kunye ne-welding deformation encinci.
2. Igesi yokukhusela i-argon kunye nokuhlambuluka kwe-99.99%. Xa i-welding yangoku i-50 ~ 150A, ukuhamba kwegesi ye-argon yi-8 ~ 10L / min; xa okwangoku i-150 ~ 250A, ukuhamba kwegesi ye-argon yi-12 ~ 15L / min.
3. Ubude obude be-electrode ye-tungsten ukusuka kwi-nozzle yegesi ngokukhethekileyo i-4 ukuya ku-5 mm. Kwiindawo ezikhuselwe kakubi ezifana ne-fillet welds, yi-2 ukuya kwi-3 mm. Kwiindawo ezinemiqolomba enzulu, yi-5 ukuya kwi-6 mm. Umgama ukusuka kwi-nozzle ukuya emsebenzini awukho ngaphezu kwe-15mm.
4. Ukuze kuthintelwe ukwenzeka kwe-welding pores, nayiphi na i-rust, i-oil stains, njl njl kwi-welding part kufuneka ihlambuluke.
5. Ubude be-arc welding kukhethwa ukuba yi-2 ~ 4mm xa udibanisa intsimbi eqhelekileyo, kunye ne-1 ~ 3mm xa u-welding steel stainless. Ukuba lide kakhulu, umphumo wokukhusela uya kuba mbi.
6. Ngexesha lokudityaniswa kwe-butt, ukuze kuthintelwe icala elingasemva le-weld bead engezantsi ekubeni i-oxidized, icala elingasemva lifuna ukukhuselwa ngegesi.
7. Ukuze wenze igesi ye-argon ikhusele kakuhle i-pool ye-welding kwaye iququzelele ukusebenza kwe-welding, umgca ophakathi we-electrode ye-tungsten kunye ne-workpiece kwindawo ye-welding kufuneka igcine i-angle ye-80 ~ 85 °, kunye ne-angle phakathi ucingo lokuzalisa kunye nomphezulu we-workpiece kufuneka ibe yincinci kangangoko. Ngokuqhelekileyo malunga ne-10 °.
8. Ingangeni moya kwaye ingena umoya. Kwiindawo ezinomoya, qiniseka ukuba uthathe amanyathelo okuthintela inetha, kwaye uthathe amanyathelo afanelekileyo okungenisa umoya ngaphakathi.
2. Amanqaku aphambili kunye nezilumkiso ze-MIG welding yensimbi engenasici
1. Sebenzisa umthombo wamandla we-welding osicaba, kwaye usebenzise i-reverse polarity ye-DC (ucingo lwe-welding luqhagamshelwe kwi-electrode efanelekileyo)
2. Ngokuqhelekileyo, i-argon ecocekileyo (i-99.99% yococeko) okanye i-Ar + 2% O2 isetyenzisiweyo, kwaye izinga lokuhamba likhethwa yi-20 ~ 25L / min.
3. Ubude beArc. Ukufakwa kwe-MIG yensimbi engenasici ngokuqhelekileyo idityaniswe phantsi kweemeko zokutshintshwa kwe-spray, kwaye i-voltage kufuneka ihlengahlengiswe kwi-arc ubude be-4 ukuya kwi-6 mm.
4. Ukuthintela umoya. I-MIG iwelding ichatshazelwa lula ngumoya, kwaye ngamanye amaxesha impepho inokubangela imingxunya. Ngoko ke, amanyathelo okukhusela umoya kufuneka athathwe naphi na apho isantya somoya singaphezulu kwe-0.5m/sec.
3. Amanqaku aphambili kunye nezilumkiso zentsimbi engenastainless flux cored wire welding
1. Sebenzisa umthombo wamandla we-welding flat characteristic, kwaye usebenzise i-reverse polarity ngexesha le-DC welding. Ungasebenzisa i-CO2 welder eqhelekileyo ukuwelda, kodwa nceda ukhulule uxinzelelo kwivili lokutya kocingo kancinci.
2. Igesi ekhuselayo ngokuqhelekileyo i-carbon dioxide gas, kunye nesantya sokuhamba kwegesi yi-20 ~ 25L / min.
3. Umgama ofanelekileyo phakathi kwe-welding tip kunye ne-workpiece yi-15 ~ 25mm.
4. Ubude bokwandiswa okomileyo, i-welding current jikelele imalunga ne-15mm xa i-welding current ingaphantsi kwe-250A, kwaye malunga ne-20 ~ 25mm xa i-welding current ingaphezu kwe-250A ifanelekile.
Ixesha lokuposa: Dec-28-2023
