Copper thiab Copper Alloy Vuam Electrode
T207
GB/T ECuSi-B
AWS A5.6 ECuSi
Nqe lus piav qhia: T207 yog tooj liab hlau electrode nrog silicon bronze core thiab qis hydrogen sodium txheej.Siv DCEP (cov khoom siv hluav taws xob ncaj qha tam sim no zoo) nrog cov khoom siv zoo heev.Nws muaj qhov zoo corrosion kuj rau inorganic acids uas tsis yog nitric acid, feem ntau cov organic acids thiab seawater.
Daim ntawv thov: Nws yog tsim rau welding ntawm tooj liab, silicon bronze thiab tooj dag, surfacing vuam ntawm linings ntawm tshuaj machinery pipelines, thiab lwm yam.
Tshuaj muaj pes tsawg leeg ntawm weld hlau (%):
| Cu | Si | Mn | Pb | Al+Ni+Zn |
| 9 2.0 | 2.5 ~ 4.0 | ≤3.0 | ≤ 0.02 | ≤0.50 |
Mechanical zog ntawm weld hlau:
| 试验项目 Cov khoom kuaj | 抗拉强度 Tensile zog Mpa | 延伸率 Elongation % |
| 保证值 lav | ≥270 | ≥ 20 |
Pom zoo tam sim no:
| Qws txoj kab uas hla (mm) | 3.2 | 4.0 | 5.0 |
| Vuam tam sim no (A) | 90-130 Nws | 110 ~ 160 ib | 150 ~ 200 hli |
Daim ntawv ceeb toom:
Cov kev ceev faj:
1. Cov electrode yuav tsum tau ci ntawm li 300 ° C rau 1 mus rau 2 teev ua ntej vuam;
2. Cov dej noo, roj, oxides thiab lwm yam impurities ntawm qhov chaw vuam yuav tsum raug tshem tawm ua ntej vuam.
3. Thaum vuam silicon bronze lossis surfacing vuam ntawm hlau, tsis tas yuav tsum tau preheating.Lub preheating kub rau vuam ntshiab tooj liab yog hais txog 450 ° C, thiab preheating kub rau vuam tooj dag yog hais txog 300 ° C;
4. Short-arc vuam yuav tsum tau siv thaum vuam.Thaum lub sij hawm ntau txheej vuam, lub slag ntawm txheej yuav tsum yog
tshem tawm tag nrho;Tom qab vuam, rauj lub vuam nrog lub taub hau rauj kom zoo dua cov nplej, tshem tawm kev ntxhov siab, thiab txhim kho lub zog thiab plasticity ntawm cov vuam.
