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1. Iimpawu ezibonakalayo ze-austenitic stainless steel
Ukumelana okuphezulu - phantsi kwesiseko sombane ofanayo, ubushushu obuninzi buveliswa kwiyunithi yexesha
I-coefficient enkulu yokwandiswa komgca - Ngaphantsi kwegalelo elifanayo lokushisa, i-deformation inkulu kwaye uxinzelelo luya kuveliswa.
Ukungahambi kakuhle kwe-thermal - ukutshatyalaliswa kobushushu obucothayo.
2. Ukusilela okuqhelekileyo kwinkqubo ye-welding ye-austenitic stainless steel
I-1) I-Stomata: I-Hydrogen pores ebangelwa ukufuma okanye ukomisa okunganeleyo kwenzeka rhoqo
2) Ukuqhekeka: ukuqhekeka okushushu kunye nokuqhekeka kwe-arc emigodini ebangelwa ukuhlukana kwe-P kunye ne-S kwenzeka rhoqo (nikela ingqalelo kwiqoqo le-arc lingagwenywa)
I-3) I-Intergranular corrosion: ukuhlala kwindawo yeqondo lokushisa le-sensitized ye-450-850 °C ixesha elide, umda weenkozo unciphisa i-chromium carbides ukwenza imida yeenkozo ze-chromium.
Stomata
Iintanda
Umhlwa phakathi kwegranular
3 Insimbi engagqwali ene-electrode yesandla iyimfuneko yewelding jikelele
Gcina imeko
Kufuneka igcinwe kwindawo eyomileyo, kucetyiswa ukuba izinga lokushisa langaphakathi lingaphezulu kwe-5 ° C, umswakama ohambelanayo ngu-≤ 60%, kwaye ugcinwe iminyaka engaphantsi kwe-3.
Xa ugcina, kufuneka ibe yi-300mm ngaphezu komhlaba kwaye ibe ngaphezu kwe-300mm ngaphezu kodonga.
Musa ukuyilahla ngokuthanda xa uthwala, ngaphandle koko kulula ukubangela ukuba ulusu liwe.
Ukulungiselela phambi kwe-welding
1) Intonga yokuwelda kufuneka yomiswe 300 · 350 ° C ngeyure enye, kwaye ubushushu bunganyuswa ukuya ku-350 ° C okanye ixesha lokumisa linokwandiswa ngokufanelekileyo xa limanzi kakhulu, kunye nenani leengqimba ezixutywe ngexesha. ukomisa akufanele kudlule imigangatho emi-3; Kungcono ukuyisebenzisa ngokumisa okanye ukuyibeka kwi-emele yokufakelwa amandla ngaphandle kweentsuku ezi-2 ukuyigcina ukunqanda ukomisa okungeyomfuneko ukukhusela ulusu lwe-welding ukuba liwe.
I-2) I-oyile kunye ne-rust yamanzi kwindawo ye-welding kufuneka ihlambuluke ngokucokisekileyo
Ulawulo lwenkqubo yokuwelda
1) Ukhetho lwangoku: Jonga kwi-I=(25-40)*DD yidayamitha ye-electrode
2) Zama ukunciphisa i-arc welding
3) I-welding stick swing akufanele ibe banzi kakhulu, ngokubanzi phakathi kwamaxesha ama-3 ububanzi be-electrode.
4) Isantya se-welding akufanele sicothe kakhulu ukukhusela ukushisa kunye ne-slagging; Nangona kunjalo, kwimeko yokuqhekeka lula, unokukhetha i-welding encinci yangoku
5) Ngenxa yeempawu zensimbi engenasici kwi-welding ethe nkqo, intsimbi etyhidiweyo ilula ukuhamba, kwaye ukhetho olungcono kukusebenzisa i-arc breaking welding method.
6) Xa i-welding multi-layer (channel), i-welding slag kufuneka ihlambuluke
7) Umgodi we-arc kufuneka uzaliswe xa i-arc ivaliwe
Imiyalelo eyongezelelweyo
1) Xa usebenzisa umbane we-AC, i-splash inkulu kakhulu, ulusu lulula ukubomvu, ubunzulu bokungena abunzulu, kwaye kulula ukunamathela ebhodini, ngoko kuyacetyiswa ukuba usebenzise i-DC + welding.
I-2) Xa usebenzisa i-DC, ucingo lomhlaba ludibaniswa kakuhle phakathi kwesikhululo kwaye lulungiswe ukukhusela ukuphambuka kwe-arc okanye i-arc breakage.
| Udidi | Uhlobo lwesikhumba | Imveliso | Ubushushu | Ixesha |
| yenziwe ngentsimbi eshayinayo | Uhlobo lwe-Titanium calcium | E307-16、E308-16、E308L-16、E309-16、E309H-16、E309L-16、E309LMo-16、E310-16、E310Mo-10、E310Nb-16、E316-16、E316、E316、E316、E316、E3-16、E310Mo-16、E310Mo-16） 16 + -16 | 300-350℃ | 60min |
| yenziwe ngentsimbi eshayinayo | Uhlobo lwe-hydrogen ephantsi | 308,309,310,316,347,385,507,2209,2553,2593,2594,2595 | 300-350℃ | 60min |
Ixesha lokuposa: Oct-13-2022