Tooj Liab thiab Tooj Liab Alloy Vuam Electrode
T207
GB/T ECuSi-B
AWS A5.6 ECuSi
Kev piav qhia: T207 yog lub electrode tooj liab nrog lub silicon bronze core thiab cov txheej hydrogen sodium tsawg. Siv DCEP (direct current electrode positive) nrog cov khoom siv kho tshuab zoo. Nws muaj kev tiv thaiv corrosion zoo rau cov inorganic acids tsis yog nitric acid, feem ntau cov organic acids thiab dej hiav txwv.
Daim Ntawv Thov: Nws yog qhov tsim nyog rau kev vuam tooj liab, silicon bronze thiab tooj dag, surfacing vuam ntawm linings ntawm cov kav dej tshuaj lom neeg, thiab lwm yam.
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau vuam (%):
| Cu | Si | Mn | Pb | Al+Ni+Zn |
| >92.0 | 2.5 ~ 4.0 | ≤3.0 | ≤0.02 | ≤0.50 |
Cov khoom siv kho tshuab ntawm cov hlau vuam:
| 试验项目 Khoom sim | 抗拉强度 Lub zog tensile Mpa | 延伸率 Kev ntev % |
| 保证值 Tau lees paub | ≥270 | ≥20 |
Pom zoo tam sim no:
| Txoj kab uas hla ntawm tus pas nrig (hli) | 3.2 | 4.0 | 5.0 |
| Vuam Tam Sim No (Ib) | 90 ~ 130 | 110 ~ 160 | 150 ~ 200 |
Daim Ntawv Ceeb Toom:
Cov kev ceev faj:
1. Lub electrode yuav tsum tau ci ntawm li 300 ° C rau 1 txog 2 teev ua ntej vuam;
2. Cov dej noo, roj, oxides thiab lwm yam tsis huv ntawm qhov chaw ntawm qhov vuam yuav tsum tau muab tshem tawm ua ntej vuam.
3. Thaum vuam silicon bronze lossis surfacing vuam rau ntawm hlau, tsis tas yuav tsum tau ua ntej cua sov. Qhov kub ua ntej rau kev vuam tooj liab ntshiab yog li 450 ° C, thiab qhov kub ua ntej rau kev vuam tooj dag yog li 300 ° C;
4. Yuav tsum siv cov vuam luv luv thaum lub sijhawm vuam. Thaum lub sijhawm vuam ntau txheej, cov slag ntawm cov khaubncaws sab nraud povtseg yuav tsum tau
tshem tawm tag nrho; tom qab vuam, siv lub rauj taub hau tiaj tiaj rauj lub vuam kom ua kom cov noob zoo, tshem tawm kev ntxhov siab, thiab txhim kho lub zog thiab kev hloov pauv ntawm qhov vuam.
