SU523777A1

SU523777A1 - Powder wire mix

Info

Publication number: SU523777A1
Application number: SU2098296A
Authority: SU
Inventors: Александр Гаврилович Александров; Иван Петрович Волчок; Игорь Викторович Пиньковский
Original assignee: Запорожский машиностроительный институт им.В.Я.Чубаря
Priority date: 1975-01-17
Filing date: 1975-01-17
Publication date: 1976-08-05

Description

(54) ШИХТА ПОРОШКОВОЙ ПРОВОЛОКИ(54) CHARGE POWDER WIRE

1one

Изобретение отнсх;итс к сварочнык материалам и может)найти применение при наплавке деталей машин, работающих при высоких концентраци х щелочных сред и повышенных температурах в сочетании с высокими скорост ми движени промышленных рас-торов, а также дл их восстановительных работ.The invention relates to welding materials and can be used for surfacing machine parts operating at high concentrations of alkaline media and elevated temperatures in combination with high speeds of industrial crushers, as well as for their restoration work.

Известна | порошкообразна : проволока дл наплавки, состо ща из стальной обо; дочки и порощкообразной шихты, содержащейKnown | powdered: wire for surfacing consisting of steel steel; daughters and powder mixture containing

: следующие компоненты (в вес.%): Никель57-72: the following components (in wt.%): Nickel57-72

Ферромарганец3,5-6,5Ferromanganese3,5-6,5

Ферросилиций0,5-1,5Ferrosilicon: 0.5-1.5

Плавиксдаый шпат11,5-12,5Plaviksday spar 11,5-12,5

Графит0,5-1,0Graphite0.5-1.0

Железный порошокОстальное. Наплавка известной проволокой не обеспе чивает надлежащей коррозионной и эрозионной стойкости.Iron powderEverything. Surfacing with known wire does not provide adequate corrosion and erosion resistance.

С целью увеличени коррозионной и aptx-,In order to increase corrosive and aptx-,

зионной стойкости в состав шихты введены 1 zion resistance in the charge entered 1

алюминий и иттрий при следующем соотношении компоненгов (в вес.%);aluminum and yttrium in the following ratio of components (in wt.%);

Никель75-90Nickel75-90

Алюминий0,5-1Aluminum 0.5-1

Ферромарганец3,6-6,5Ferromanganese3,6-6,5

Ферросилиций0,5-1,5Ferrosilicon: 0.5-1.5

Иттрий0,5-1 Yttrium 0.5-1

Плавиковый щпатОстальное.Fluke shpatEstalnoe.

Claims

Increasing the nickel content in the charge up to 75-90% makes it possible to obtain a weld metal with a nickel content of 25-30%, which, in combination with modifying aluminum and yttrium (o, 5-1)% of each, can dramatically increase the corrosion resistance of the weld metal in alkali high temperatures and concentrations. , Ferromanganese and ferrosilicon in the specified range I allows to obtain a weld metal without pores and cracks. Complex dissolution by aluminum and i with yttrium decreases; contamination with sulphides and oxysulphides, crushes the grain of austerite and additionally increases the corrosion resistance of the fused metal. Fluorite materials promotes the clumping of the charge in the manufacture of a research institute for powder coating and improves its technological properties during surfacing. Surfacing is carried out with direct current of reverse polarity under a layer of flux (AN-2O, 48-OF-6) or in argon, Chemical aging of the weld metal (in weight4% b. P. Carbon0.08-0-0.12 Manganese0 , 5-1.0 Silicon, 0.3-0.4 Nickel25-30 / Yttrium0.04-0.08 Aluminum Traces The deposited metal of this composition possesses the following corrosion resistance at high concentrations of alkaline media and high temperatures: when boiling in a 3096 solution of caustic soda Corrosion permeability of the weld metal with 28% is 0.02 mm / year, which corresponds to the corrosion resistance Samples of pure nickel. Formula of the Invention A flux of flux-cored wire containing nickel, fluorspar, ferromanganese, ferrosilicon, characterized in that, in order to increase the corrosion and erosion resistance of the cladding, the composition of the charge also contains aluminum and yttrium in the following ratio of components (% ):: Nickel75-90 Aluminum0.5-1 Ferromanganese3.5-6.5 Yttrium0.5-1 Ferrosilicon0.5-1.5 FluorsparEmost,