I-ISO 3581-A Iintsimbi ezingenazintsimbi ezisetyenziswa ngesandla kwi-electrode ye-Welding

1. Ifanele UKUSHIYWA KWESITIMI ESIKABHAYIBHILE KUNYE NENTENYE YE-ALLOY EPHANTSI, KWAKUNYE NAMANDLA OKUFANELEKILEYO WE-BOILER, umbhobho, isithuthi, i-BUILDING, BRIDGE KUNYE NEZINYE IZIQULATHO, NJENGO-Q345.
2. Umgangatho esidibene nawo: GB/T5117 E5016, AWS A5.1 E7016 & A5.1M E4916, ISO2560-A:E 42 3 B 1 2, ISO 2560-B: E4916 A

Imiqathango ye-welding:
Ngaphambi kwe-welding, i-weldment kufuneka ingabikho ngokupheleleyo kwioli, i-rust, umswakama, njl.;ukomisa kwi-350 ° C ngeyure;kunye nokumisa ngokusetyenziswa
3. Sebenzisa i-welding yokudlula emxinwa kunye ne-arc welding emfutshane;Uqhagamshelo lwe-AC kunye ne-DC umva.

Ingasetyenziselwa ukuwelda intsimbi yekhabhoni ephantsi kunye ne-490MPa yamandla aphezulu wentsimbi yombhobho wentsimbi edibeneyo, inokuqonda ukuwelda kwecala elinye lokubumba kabini.

I-electrode yeyohlobo oluphantsi lwe-hydrogen, umbhobho we-welding kunye nesakhiwo ngokubanzi sengcambu ye-weld, inokuqonda i-welding yecala elinye-macala amabini, ngoko inokugcina isithende sokucoca i-welding, ukwenzela ukuba ukusebenza kwe-welding kuphuculwe. .

Amanqaku aphambili enkqubo:

1, ukomisa ngaphambi kokusetyenziswa, 300 ~ 350 ℃ ukomisa imizuzu engama-30 ~ 60;

I-2, khetha i-current efanelekileyo kunye ne-groove, ukuze ufumane i-weld back weld;

3. Xa ucima i-arc, khokela umgodi we-arc kwicala le-groove uze uphule i-arc;

4. Ixesha lokuqala le-arc usebenzisa i-arc yokuqalisa ipleyiti okanye kwicala le-groove arc;

5. Gcina i-arc i-welding emfutshane;

6. Sebenzisa uqhagamshelo lwe-AC okanye lwe-DC reverse.