SU420224A1 - Welding electrode - Google Patents

Description

one

The invention relates to the field of manual arc welding of a cord strung-off high-alloyed nickel-chromium-nickel stainless steels of the type 18-10.

A welding electrode is known for manual welding of corrosion-resistant steels, consisting of a doped rod and pokrtlti, removed, weight,%:

Magnesite.10-25

Fluorspar6 12

Rutile end waste13-22

Iron powder35-55

Chrome6-16

.Ferrotitan2-4

Ferroniobium-0.5-10.0

Mica.2.5 6.0

However, the known electrode allows to obtain high-quality welded joints when welding sturge soybeans (-,. Without welding). When welding tee joints; and TaiDiie butt joints with a gap.

Improving the durability of the metal of the joint of the type of pores and pores and the increase of the resistance and durability of the metal is provided for

due to the fact that V hematite 3-1b wt. % and sweat 0, and the rest of the coverings are taken in the following ratio, weight. %;

Magnesite

Fine spar5-12

Rutile concentrate8-25

Iron powder2O-60

Chrome1-15

Ferroniobium1-8

Mica1 6

Ferrotitanium5-10

 The introduction of hematite nph into the coating at the same time magnesite in it allows reducing the viscosity of the resulting | when welding slag, thereby reducing the saturation of the weld metal with hydrogen, i.e. Consider the resistance of the weld metal against the formation of pores.

Coated 1 1 1 can be added to the composition (wt.%}: Spsel up to 1O, chromium-nickel powder up to 30, 4SPPOxpoM up to 30%;

High performance offered by the. Electrode is provided with

Metal powders in the electrode coating - i

5LzGGI.t

The use of ferrotitanium as a deoxidizing agent I provides a high transition, niobium to the weld metal and, thus, high, g corrosion resistance of the weld against melting metal corrosion, -I

The selected ratio of the remaining components | nentov allows to provide austenitic fer | Rich metal with high technological IQ strength,

As the core of the proposed electrode can be used without leaving CB-07X25N13 to CB-13X25N12T. I All components of the coating are taken in a 35 minced form and mixed to obtain a homogeneous mass of n однород

Electrodes are manufactured by pressing

Claims (1)

1. Welding electrode, mainly for welding high-alloyed chromium-nickel and stainless staples, consisting of a doped rod and a coating containing; Our magnetite, fluorspar, rutile KOHueHTpaTj zhepezpp powder. Ferroniobium, mica, ferrotitanium, are used in order to increase the durability of the weld metal against the pattern of the pore and increase the corrosion resistance and strength, B of the coating was introduced. matite and potash and components of T} s you are in the following ratio, weight%: Magnesite3-9 Fluorspar5-12 Rutile concentrate8-2.5 W & o pepy powder20-- 6O Chrome1-15 Ferroniobium1-8 Mica1-6 Ferrotitanium 5 10 Hematite3 “10 PotashOjO-ljO 2, Electrode according to claim 1, about tl and h and y p ;; With the fact that nickel can be added to pokrypto composition up to 10% by weight, 3 "Electrode by n, ls about tl and h ayush and with the fact that a chromo-ninkle powder up to 30 wt. % 4, Electrode in PP, 1 and 2 about tl and h a-y and i with the fact that VBEden ferrochro (up to 30% by weight,%) can be included in the PS function.