I-1.Ukukhethwa kwezinto eziphathekayo kunye ne-welding yokuvelisa ihambelana ne-ASME Boiler kunye neKhowudi ye-Pressure Vessel Code kunye neKhowudi yoMbhobho woxinzelelo lwe-ANSI.
2. Ukwakhiwa kweekhemikhali zetsimbi zamacandelo adibeneyo kunye nezinto ezidibeneyo kufuneka zihambelane nemimiselo yomgangatho.Izinto ezisisiseko kufuneka zihambelane ne-ASTM izibonelelo zobugcisa zamanqaku afanelekileyo B165, B164, B127.izinto zokuzalisa kufuneka zihambelane ne-ASME A-42 yezinto zokugcwalisa kwi-ER-NiCu-7 echaziweyo okanye i-ER-ENICu-4.
3. I-weld bevel kunye nommandla ojikelezayo we-stain (i-oil ester, ifilimu yeoli, i-rust, njl.) kufuneka ihlambuluke ngesisombululo sokucoca.
4. Xa ubushushu bezinto ezisisiseko bungaphantsi kwe-0℃, kuyafuneka ukuba ubushushu buqale kwi-15.6-21℃, kwaye i-weld bevel yezinto ifudunyezwe kwi-16-21℃ ngaphakathi kwe-75mm.
5. I-weld bevel prefabricated ikakhulu ixhomekeke kwindawo yokuwelda kunye nobukhulu bezinto eziphathekayo, i-alloy ye-Monel ifuna i-angle ye-weld ye-weld kunezinye izinto, i-edge blunt kunezinye izinto ezincinci ukuba zibe zincinci, kuba ubukhulu be-alloy plate ye-monel ye-3.2 -19mm, i-engile bevel yi-40 ° engile kunye edge blunt 1.6mm, umsantsa ingcambu 2.4mm, ngaphantsi kwe 3.2mm weld macala omabini ukuba squarely cut okanye ukusika kancinane bevel, hayi bevel cut.Amacala e-weld aqala ngomatshini ngeendlela zomatshini, okanye ezinye iindlela ezifanelekileyo, ezifana ne-arc gas planing okanye i-plasma cutting, i-arc cutting.Kungakhathaliseki ukuba yeyiphi indlela, icala le-weld kufuneka libe yinto efanayo, igudileyo kwaye i-burr-free, i-bevel ayiyi kuba ne-slag, i-rust kunye nokungcola okuyingozi, ukuba kukho iintanda ze-slag kunye nezinye iziphene kufuneka ziphuculwe kwaye zihlolwe ngononophelo ngaphambi kokuba zidibanise. .
6. Amalungiselelo obunzima bepleyiti yesixhobo somzali, ukutyeba kwemathiriyeli ecetyiswayo (4-23mm) ukuya kuthi ga kwi-19mm evumelekileyo ukuwelda, obunye ubungqimba bunokudityaniswa kodwa bufuna ukuncamatheliswa komzobo oneenkcukacha.
7. I-Welding phambi kwentonga ye-welding ukomisa unyango, ukomisa ukulawula ukushisa kwi-230 - 261 C.
8. Iimeko ze-Welding: umphezulu weendawo ezidibeneyo azikwazi ukuthungwa ngenxa yemvula kunye nokufuma, iintsuku zemvula, iintsuku ezinomoya azikwazi ukuvuleka kwe-welding, ngaphandle kokuba kumiselwe ishedi yokukhusela.
9. Akukho unyango olushushu olufunekayo emva kwe-welding.
10. Uninzi lwetekhnoloji ye-welding inentsimbi ye-arc welding (SMAW), ingasetyenziselwa i-gas shielded tungsten arc welding (GTAW), ukuwelda okuzenzekelayoayikhuthazwa.Ukuba ukuwelda oluzenzekelayo kusetyenziswa, ngoko ukuwelda argon arc, ukusetyenziswa intonga ukuwelda akajingi inkqubo welding, ukwenzela ukwenza umsebenzi weld metal fluidity, ingaba ujingi kancinane ukunceda ukuhamba kwentsimbi weld, kodwa ujingi ubuninzi ububanzi yenza. ungadluli ngokuphindwe kabini ububanzi bentonga ye-welding, ekusebenziseni indlela ye-SMAW ye-welding elulaiiparamitha zezi:Unikezelo lwamandla: uqhagamshelo oluthe ngqo, umva, ukusebenza kakubiIVoltage: 18-20VCurrent: 50 - 60AElectrode: ngokubanzi φ2.4mm ENiCu-4 (Monel 190) electrode
11. I-spot welding kufuneka idityaniswe kwingcambu ye-weld channel.
12. Emva kokuba i-weld yenziwe, akukho mphetho uvunyelwe ukuba ube khona.
13. I-weld ye-butt kufuneka iqiniswe, ukuphakama kokuqiniswa akufanele kube ngaphantsi kwe-1.6mm kwaye kungabi ngaphezu kwe-3.2mm, ukukhangela akufanele kube ngaphezu kwe-3.2mm, kwaye kungabi ngaphezu kwe-3.2mm ye-bevel yombhobho.
14. Emva kokuwelda umaleko ngamnye we weld, kufuneka weld flux kunye adhesion kunye steel stainless ibrashi yocingo ukususa ecocekileyo, phambi ukuwelda umaleko olandelayo.
15. Ukulungiswa kwesiphako: Xa umgangatho wengxaki ye-weld, isicelo sokusila kunye nokusika okanye i-arc gas iya kugrunjwa iziphene kude kube ngumbala wentsimbi yokuqala, kwaye emva koko i-welded ngokwemigaqo ye-welding yokuqala kunye nezibonelelo zobugcisa, musa. vumela indlela yokubethelwa ukuba ivale i-weld metal cavity okanye igcwalise umngxuma ngezinto zangaphandle.
16. I-Carbon steel overlay welding welding I-alloy ye-Monel iya kusebenzisa intonga ye-welding ye-p2.4mm, ngenxa yokuba i-welding ye-alloy ye-Monel kufuneka ibe yi-5mm ubuncinane, ukuze ugweme ukuqhekeka, kufuneka ihlulwe ubuncinane ibe yimiba emibini ye-welding.Uluhlu lokuqala luluhlu lwenguqu ye-Monel alloy exutywe ne-carbon steel.Umaleko wesibini ngaphezu komgangatho ococekileyo we-alloy ye-Monel, emva kokucubungula ukuqinisekisa ukuba kukho i-alloy ye-Monel ecocekileyo esebenzayo yomaleko obunzima obuyi-3.2mm, umaleko ngamnye odityanisiweyo ukuba upholiswe kwiqondo lobushushu begumbi, kunye nebrashi yentsimbi engenasici yokususa i-welding flux phambi kwe-welding. kumaleko.
17. Ukutyeba ngaphezu kwe-6.35 mm yepleyiti ye-alloy ye-Monel, i-butt welding kufuneka yahlulwe ibe yimigangatho emine okanye ngaphezulu ye-welding.Imigangatho emithathu yokuqala efumanekayo intonga yokuwelda ecolekileyo (φ2.4mm) welding, iileya ezimbalwa zokugqibela ezikhoyo coarse welding rod (φ3.2mm) welding.
18. I-alloy welding ye-Monel phakathi kwe-AWS ENiCu-4 i-welding rod ER NiCu-7 ucingo, i-carbon steel kunye ne-Monel alloy welding kunye ne-EN NiCu-1 okanye i-EN iCu-2 intonga ye-welding nezinye izibonelelo kunye nokufana nale migaqo ingentla.
ulawulo lwemeko
Ukuqinisekisa umgangatho we-welding, iindlela zokuvavanya ezingonakalisiyo kuthetha ukulawula umgangatho, njengemitha, isuntswana lamagnetic, i-ultrasonic, ukungena kunye nezinye iindlela zokuhlola ukuze zihlolwe.Zonke ii-welds kufuneka zihlolwe kwakhona ngenxa yeziphene zembonakalo, ezifana nokuqhekeka kwendawo, ukubetha, ukulungelelaniswa kunye nokungena kwe-weld, njl. Ngelo xesha, uhlobo lwe-welding, i-weld forming nayo kufuneka ihlolwe.Zonke iiwelds zeengcambu kufuneka zihlolwe ukuze zifakwe imibala, kwaye ukuba iziphene zifunyenwe, kufuneka zilungiswe ngaphambi kokuba kuhlolwe i-welds eseleyo.
Ixesha lokuposa: Feb-13-2023