IZICELO:
Ilungele ukudityaniswa kwentsimbi ephezulu engwevu kunye nentsimbi ephoswe ngamaqhuqhuva, enjengesilinda, ibhloko yenjini, ibhokisi yegiya, njl.
UHLELO:
AWS A5.15 / ASME SFA5.15 ENiFe-CI
JIS Z3252 DFCNiFe
IIMPAWU:
I-AWS ENiFe-CI (Z408) yintsimbi ye-electrode ene-nickel iron alloy core kunye nokunciphisa okunamandla kokugquma kwegraphite.Ingasetyenziswa kwi-AC kunye ne-DC injongo ezimbini, ine-arc ezinzileyo, kwaye kulula ukuyisebenzisa.I-electrode ineempawu zamandla aphezulu, iplastiki enhle, i-coefficient ephantsi yokwandisa umgca kunye nokunye.Ukumelana nokuqhekeka kwentsimbi engwevu kufana naleyo ye-Z308, ngelixa ukuxhatshazwa kwe-crack ye-nodular cast iron kungaphezulu kwe-ENi-CI (Z308).Kwintsimbi etyhidiweyo ene-phosphorus ephezulu (0.2% P), nayo ineziphumo ezilungileyo kwaye ukusebenza kwayo kokusika kungaphantsi kwe-Z308 kunye ne-Z508 kancinane.I-Z408 isetyenziselwa i-welding yentsimbi engwevu kunye ne-nodular cast iron yegumbi
QAPHELA:
Phambi kwe-welding, ii-electrode kufuneka zibhakwe iyure enye ngeqondo lobushushu eliyi-150±10℃ phambi kokusetyenziswa.
Xa ukuwelda, kufanelekile ukuthatha i-weld emxinwa kwaye ubude be-weld nganye akufanele budlule i-50mm.I-Hammer indawo ye-welding ngokukhawuleza ngesando ngokukhawuleza emva kwe-welding ukwenzela ukuphelisa uxinzelelo kunye nokuthintela ukuqhekeka.
Igalelo lobushushu elisezantsi liyacetyiswa.
UYEKELEKO LWEKHEMIKALI YEMETALI ENDIPILEYO(ISIQEQESHO LOBUNZI): %
| Izinto | C | Si | Mn | S | Fe | Ni | Cu | Ubunzima bezinye izinto |
| Ixabiso eliqhelekileyo | 0.35-0.55 | ≤0.75 | ≤ 2.3 | ≤0.025 | 3.0- 6.0 | 60- 70 | 25- 35 | ≤ 1.0 |
UKUSHISA IREFRENSI YAMVA:(AC,DC+)
| Idayamitha ye-Electrode(mm) | 3.2 | 4.0 | 5.0 |
| Ubude (mm) | 350 | 350 | 350 |
| Welding current(A) | 90-110 | 120-150 | 160-190 |
Iimpawu zokuSetyenziswa:
I-arc ezinzileyo kakhulu.
Ukususwa okugqwesileyo kwe-slag.
Ukungena akunzulu.
Ubushushu obuhle kunye nokumelana nokubola.
Ukumelana nokuqhekeka okugqwesileyo.
