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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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