PL163668B1 - Coating of the electrode for regenerative surfacing of steel elements - Google Patents

Coating of the electrode for regenerative surfacing of steel elements

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Publication number
PL163668B1
PL163668B1 PL29050091A PL29050091A PL163668B1 PL 163668 B1 PL163668 B1 PL 163668B1 PL 29050091 A PL29050091 A PL 29050091A PL 29050091 A PL29050091 A PL 29050091A PL 163668 B1 PL163668 B1 PL 163668B1
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PL
Poland
Prior art keywords
surfacing
coating
electrode
regenerative
plasticizers
Prior art date
Application number
PL29050091A
Other languages
Polish (pl)
Other versions
PL290500A1 (en
Inventor
Jan Sitko
Marian Lorkiewicz
Jerzy Kopel
Kazimierz Steller
Tadeusz Krzysztofowicz
Original Assignee
Huta Baildon
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huta Baildon filed Critical Huta Baildon
Priority to PL29050091A priority Critical patent/PL163668B1/en
Publication of PL290500A1 publication Critical patent/PL290500A1/en
Publication of PL163668B1 publication Critical patent/PL163668B1/en

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Abstract

Otulina elektrody do napawania regeneracyjnego elementów stalowych z rdzeniem ze stali chromowej zawierająca żelazostopy,składniki żużlotwórcze i jonizujące łuk oraz plastyfikatory, znamienna tym, że zawiera wagowo 0-2% żelazomanganu, 2-4% żelazokrzemu, 8-12% żelazochromu, 38-44% wapienia, 25-29% fluorytu, 2-4% bieli tytanowej, 0,5-1,5% plastyfikatorów oraz 5-18% kobaltu.Electrode coating for regenerative surfacing of steel elements with a chromium steel core containing ferroalloys, slag-forming and arc-ionizing components and plasticizers, characterized in that it contains by weight 0-2% ferromanganese, 2-4% ferrosilicon, 8-12% ferrochromium, 38-44% limestone, 25-29% fluorite, 2-4% titanium white, 0.5-1.5% plasticizers and 5-18% cobalt.

Description

Przedmiotem wynalazku jest otulina elektrody do napawania regeneracyjnego elementów stalowych, zwłaszcza uszkodzonych wskutek erozji kawitacyjnej, na przykład elementów turbin elektrowni wodnych.The subject of the invention is a coating of an electrode for regenerative surfacing of steel elements, in particular those damaged by cavitation erosion, for example elements of hydroelectric turbines.

Znane są elektrody do napawania regeneracyjnego elementów stalowych, których otulina zawiera żelazostopy, proszek żelaza, składniki żużlotwórcze i plastyfikatory.There are known electrodes for regenerative surfacing of steel elements, the coating of which contains ferroalloys, iron powder, slag-forming components and plasticizers.

Znana elektroda o oznaczeniu EN10-10B przeznaczona do napawania elementów stalowych uszkodzonych wskutek erozji kawitacyjnej składa się z rdzenia ze stali chromowej i otuliny zawierającej wagowo 35% żelazomaganu, 3% żelazochromu, 25% wapienia, 17% fluorytu, 17,5% proszku żelaza, 2% glinokrzemianów i 0,5% plastyfikatorów. Elektroda ta nie zapewnia wysokiej odporności napoiny na działanie erozji kawitacyjnej - średnia maksymalna szybkość erozji napoiny badana na stanowisku z wirującą tarczą wynosi 0,31 mg/min.A well-known electrode with the designation EN10-10B, intended for surfacing of steel elements damaged by cavitation erosion, consists of a chromium steel core and a coating containing 35% by weight of ferro-magnesium, 3% ferro-chromium, 25% limestone, 17% fluorspar, 17.5% iron powder, 2% aluminosilicates and 0.5% plasticizers. This electrode does not ensure high resistance of the padding weld to cavitation erosion - the average maximum erosion rate of the padding weld tested on the rotating disc stand is 0.31 mg / min.

Istota rozwiązania według wynalazku polega na tym, że otulina elektrody z rdzeniem ze stali chromowej zawiera wagowo 0-2% żelazomanganu, 2-4% żelazokrzemu, 8-12% żelazochromu, 33-44% wapienia, 25-29% fluorytu, 2-4% bieli tytanowej, 0,5-1,5% plastyfikatorów, oraz 5-18% kobaltu.The essence of the solution according to the invention is that the coating of the electrode with a chrome steel core contains 0-2% by weight of ferro-manganese, 2-4% ferrosilicon, 8-12% ferro-chromium, 33-44% limestone, 25-29% fluorspar, 2-4% 4% titanium white, 0.5-1.5% plasticizers, and 5-18% cobalt.

Elektroda z otuliną według wynalazku zapewnia uzyskanie stopiwa o zwiększonej odporności na erozję kawitacyjną.The electrode with a coating according to the invention provides a weld metal with increased resistance to cavitation erosion.

Przykład . Wykonano elektrody z rdeeniem ee stal i zawierająeej 174%% Cr , 0,06% C , 0,45% Mn i 0,41% Si z otuliną zawierającą wagowo 1% żelazomanganu, 3% żelazokrzemu, 10% żelazochromu, 16%o kobaltu, 40% wapienia, 20% fluorytu, 3% bieli tytanowej oraz 1% karboksymetylocelulozy. Otrzymano po spawaniu stopiwo zawierające 0,31% C, 16,5% Cr, 0,07% Co i 0,55% Mn posiadające twardość około 31 HRC. Średnia maksymalna szybkość erozji napoiny badana na stanowisku z wirującą tarczą wyniosła 0,114 mg/min.An example. The electrodes were made with steel core and containing 174%% Cr, 0.06% C, 0.45% Mn and 0.41% Si with a coating containing 1% by weight of ferro-manganese, 3% ferrosilicon, 10% ferro-chromium, 16% with cobalt , 40% limestone, 20% fluorspar, 3% titanium white and 1% carboxymethyl cellulose. After welding, a weld metal containing 0.31% C, 16.5% Cr, 0.07% Co and 0.55% Mn was obtained having a hardness of about 31 HRC. The average maximum erosion rate of the padding weld tested on the stand with the rotating disk was 0.114 mg / min.

Departament Wydawnictw UP RP. Nakład 90 egz.Publishing Department of the UP RP. Circulation of 90 copies

Cena 10 000 złPrice: PLN 10,000

Claims (1)

Zastrzeżenie patentowePatent claim Otulina elektrody do napawania regeneracyjnego elementów stalowych z rdzeniem ze stali chromowej zawierająca żelazostopy, składniki żużlotwórcze i jonizujące łuk oraz plastyfikatory, znamienna tym, że zawiera wagowo 0-2% żelazomanganu, 2-4% żelazokrzemu, 8-12% żelazochromu, 38-44% wapienia, 25-29% fluorytu, 2-4% bieli tytanowej, 0,5-1,5% plastyfikatorów oraz 5-18% kobaltu.The coating of the electrode for regenerative surfacing of steel elements with a chromium steel core containing ferroalloys, slag-forming and arc ionizing components and plasticizers, characterized by the fact that it contains 0-2% by weight of ferro-manganese, 2-4% of ferrosilicon, 8-12% of ferro-chromium, 38-44 % limestone, 25-29% fluorite, 2-4% titanium white, 0.5-1.5% plasticizers and 5-18% cobalt.
PL29050091A 1991-05-28 1991-05-28 Coating of the electrode for regenerative surfacing of steel elements PL163668B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL29050091A PL163668B1 (en) 1991-05-28 1991-05-28 Coating of the electrode for regenerative surfacing of steel elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL29050091A PL163668B1 (en) 1991-05-28 1991-05-28 Coating of the electrode for regenerative surfacing of steel elements

Publications (2)

Publication Number Publication Date
PL290500A1 PL290500A1 (en) 1992-11-30
PL163668B1 true PL163668B1 (en) 1994-04-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL29050091A PL163668B1 (en) 1991-05-28 1991-05-28 Coating of the electrode for regenerative surfacing of steel elements

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PL (1) PL163668B1 (en)

Also Published As

Publication number Publication date
PL290500A1 (en) 1992-11-30

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