Ngwa:
Ọ na-adabara maka ịgbado ọkụ nke elu-ike isi awọ ígwè na nodular nkedo ígwè, dị ka cylinder, engine ngọngọ, gia igbe, wdg.
NKWUKWU:
AWS A5.15 / ASME SFA5.15 ENiFe-CI
JIS Z3252 DFCNiFe
ÀJÀ:
AWS ENiFe-CI (Z408) bụ nkedo ígwè electrode nwere nickel ígwè alloy isi na ike mbelata graphite mkpuchi.Enwere ike iji ya na ebumnuche AC na DC, nwere arc kwụsiri ike, ọ dịkwa mfe iji rụọ ọrụ.The electrode nwere àgwà nke elu ike, ezi plasticity, ala linear mgbasa ọnụọgụ na na.Nkwụsị mgbape maka nkedo isi awọ dị ka nke Z308, ebe mgbape mgbape maka nkedo nodular karịrị ENi-CI (Z308).Maka ígwè nkedo nwere phosphorus dị elu (0.2% P), ọ na-enwekwa nsonaazụ dị mma na ịrụ ọrụ ya dị ala karịa Z308 na Z508 ntakịrị.A na-eji Z408 na ịgbado ọkụ nke igwe isi awọ na igwe nkedo nodular maka ime ụlọ
IHE:
Tupu ịgbado ọkụ, electrodes kwesịrị ka akpọọ nkụ maka 1 hour na okpomọkụ nke 150 ± 10 ℃ tupu iji.
Mgbe ịgbado ọkụ, ọ bụ ihe kwesịrị ekwesị na- warara weld ogologo ọ bụla weld ekwesịghị gafere 50mm.Jiri hama kụnye ebe a na-agbado ọkụ ngwa ngwa ozugbo ịgbado ọkụ ka o wee wepụ nchekasị ma gbochie mgbawa.
A na-akwado ntinye okpomọkụ dị ala.
Ngwakọta kemịkal nke ọla edo edobere (OKE MASSỌTA): %
| Ihe | C | Si | Mn | S | Fe | Ni | Cu | Ọnụ ọgụgụ nke ihe ndị ọzọ |
| Ụkpụrụ ọkọlọtọ | 0.35-0.55 | ≤0.75 | ≤ 2.3 | ≤0.025 | 3.0- 6.0 | 60- 70 | 25- 35 | ≤ 1.0 |
Ntụaka welding ugbu a:(AC,DC+)
| Dayameta electrode (mm) | 3.2 | 4.0 | 5.0 |
| Ogologo (mm) | 350 | 350 | 350 |
| Mgbado ọkụ ugbu a (A) | 90-110 | 120-150 | 160-190 |
Njirimara na ojiji:
Ụkwụ kwụsiri ike nke ukwuu.
Ezigbo mwepu nke slag.
Ịbanye adịghị omimi.
Ezigbo okpomọkụ na nguzogide corrosion.
Magburu onwe mgbape mgbochi.
