I-Electrode yokuWelda yeCopper kunye neCopper Alloy
T207
GB/T ECuSi-B
I-AWS A5.6 ECuSi
Inkcazo: I-T207 yi-electrode ye-copper alloy ene-silicon bronze core kunye ne-low hydrogen sodium coating. Sebenzisa i-DCEP (i-direct current electrode positive) eneempawu ezintle zoomatshini. Inokumelana okuhle nokugqwala kwii-inorganic acids ngaphandle kwe-nitric acid, uninzi lwee-organic acids kunye namanzi olwandle.
Ukusetyenziswa: Ifanelekile ukuwelda ubhedu, i-silicon bronze kunye nobhedu, ukuwelda umphezulu we-linings yemibhobho yoomatshini beekhemikhali, njl.
Ukwakheka kweekhemikhali zesinyithi esijiyiweyo (%):
| Cu | Si | Mn | Pb | I-Al+Ni+Zn |
| ＞92.0 | 2.5 ~ 4.0 | ≤3.0 | ≤0.02 | ≤0.50 |
Iimpawu zoomatshini zesinyithi esijijekileyo:
| 试验项目 Into yovavanyo | 抗拉强度 Tensile strength I-Mpa | 延伸率 Ukwandiswa % |
| 保证值 Iqinisekisiwe | ≥270 | ≥20 |
I-current ecetyiswayo:
| Ububanzi bentonga （mm） | 3.2 | 4.0 | 5.0 |
| Ukuwelda kwangoku (A) | 90 ~ 130 | 110 ~ 160 | 150 ~ 200 |
Isaziso:
Ukulumkela:
1. I-electrode mayibhakwe malunga nama-300°C kangangeyure e-1 ukuya kwezi-2 ngaphambi kokuba i-welding;
2. Ukufuma, ioyile, ii-oxides kunye nezinye izinto ezingcolileyo kumphezulu we-weldment kufuneka zisuswe ngaphambi kokuba kufakwe i-welding.
3. Xa kudityaniswa i-silicon bronze okanye i-surfacing welding kwintsimbi, akufuneki kufudunyezwe kwangaphambili. Ubushushu bokufudumeza kwangaphambili bokudityaniswa kwe-copper ecocekileyo bumalunga ne-450°C, kwaye ubushushu bokufudumeza kwangaphambili bokudityaniswa kwe-copper bumalunga ne-300°C;
4. Kufuneka kusetyenziswe ukuwelda okufutshane ngexesha lokuwelda. Ngexesha lokuwelda okunamaleya amaninzi, i-slag phakathi kwamaleya kufuneka ibe
isuswe ngokupheleleyo; emva kokuwelda, faka i-weld ngesando esithe tyaba ukuze ucocise iinkozo, ususe uxinzelelo, kwaye uphucule amandla kunye nokuqina kwe-weld.
