Electrodes ЦЧ - 4
WELDING ELECTRODES ZCH-4 (diameter 3; 4; 5 mm)
LEGEND:CN-4B-Ø
TECHNICAL REQUIREMENTS: GOST 9466-75, TU RB 100034500.003-2002
COATING: main
PURPOSE:
Intended for cold welding parts made of ductile cast iron with nodular graphite and cast iron with lamellar graphite, and combinations thereof with steel; for welding the damaged parts and welding defects in the castings of ductile and gray cast iron, and pre-welding of the first one or two layers on cast iron parts worn for subsequent surfacing special electrodes. Surfacing in the lower position at a constant current of opposite polarity.
CHARACTERISTICS Electrodes:
arcing |
sustainable |
splashing degree |
small |
formation of the joint |
a good |
Separation of the slag crust |
good |
The tendency of the weld metal to pore formation |
low |
deposition rate (in the lower position of the weld) |
10.0 g / Ah |
deposition rate (electrode diameter 4.0 mm) |
1,6-2,2 kg / h |
Electrode consumption per 1 kg of weld metal |
1.8 kg. |
Hardness HB overmold |
160 - 210 |
Chemical composition of deposited metal:
Element content, weight% |
|||||
Carbon |
Manganese |
Vanadium |
Silicon |
Sulfur |
Phosphorus |
≤ 0,25 |
≤ 2,5 |
8,5-11,5 |
≤ 0,8 |
≤ 0,04 |
≤ 0,05 |
DIRECTIONS FOR USE:
In case of exceeding the permissible moisture content in the coating (1.5%) before use further electrodes are calcined at a temperature of 230-250 ° C for 40-60 minutes.
WELDING MODES:
Electrode diameter mm |
Welding current, A |
3.0 |
90-120 |
4.0 |
140-180 |
5.0 |
190-220 |
Conduct short welding rollers 25-35 mm long with povalikovym cooled in air to a temperature not higher than 60 ° C; for details of ductile cast iron and ductile long roller can be increased to 80-100 mm.
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