PL123751B1 - Self-shielding tubular type surfacing wire - Google Patents

Self-shielding tubular type surfacing wire Download PDF

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Publication number
PL123751B1
PL123751B1 PL20995578A PL20995578A PL123751B1 PL 123751 B1 PL123751 B1 PL 123751B1 PL 20995578 A PL20995578 A PL 20995578A PL 20995578 A PL20995578 A PL 20995578A PL 123751 B1 PL123751 B1 PL 123751B1
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PL
Poland
Prior art keywords
self
tubular type
wire
shielding tubular
shielding
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Application number
PL20995578A
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Polish (pl)
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PL209955A1 (en
Inventor
Wladyslaw Jaxarozen
Roman Gorski
Original Assignee
Ts Osrodek Badawaczo Proj
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Priority to PL20995578A priority Critical patent/PL123751B1/en
Publication of PL209955A1 publication Critical patent/PL209955A1/xx
Publication of PL123751B1 publication Critical patent/PL123751B1/en

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Description

Przedmiotem wynalazku jest drut proszkowy sa¬ mooslonowy przeznaczony, do pólautomatycznego i automatycznego napawania powierzchni przed¬ miotów narazonych na intensywne scieranie.Znanym sposobem podwyzszania trwalosci ele¬ mentów narazanych na intensywne scieranie jest stosowanie stopowych stali, staliw lub zeliw. Wada tego sposobu jest duzy koszt w zwiazku z uzyciem drogich materialów oraz koniecznosc poddawania elementów obróbce cieplnej.Innym sposobem jest napawanie powierzchni przedmiotów, podlegajacych zuzyciu sciernemu po¬ przez zastosowanie elektrod otulonych. Stosowane najczesciej napawanie reczne elektrodami otulony¬ mi jest nieoplacalne pod wzgledem technicznym i ekonomicznym ze wzgledu na duza pracochlonnosc procesu i niska jakosc napoin.Znane sa równiez inne metody napawania ele¬ mentów narazonych na scieranie, sposród których najszybciej rozwija sie pólautomatyczne i automa¬ tyczne napawanie drutami samooslonowymi. Przy opracowywaniu tych drutów zasadniczym kryte¬ rium oceny ich przydatnosci jest uzyskana trwalosc napoiny przy uwzglednieniu kosztów.Celem wynalazku jest uzyskanie samooslonowe- go drutu proszkowego zapewniajacego optymalna trwalosc napoiny. Cel ten osiagnieto poprzez dobór odpowiedniego skladu chemicznego dla samooslo- nowego drutu prdszkowego.Stopiwo drutu proszkowego samooslonowego we- 10 15 20 25 30 dlug wynalazku zawiera: wegiel w ilosci od 2,6% do 3%, chrom w ilosci od 20% do 22%, mangan w ilosci od 1,7% do %, krzem w ilosci od 1,4% do 1,7%, tytan w ilosci od 0,1% do 0,5%, reszta zelazo.W celu zapewnienia oslony gazowo-zuzlowej stre¬ fy luku i jeziorka spawalniczego, do mieszaniny rdzeniowej dodaje sie pyl wapienny, zawierajacy SiOz, Fe203, CaC03, MgC03, Al2Oa i inne, w ilosci od 8% do 15% w stosunku do masy rdzenia. Stopi- wo wykonane samooslonowym drutem proszkowym, bedacym przedmiotem wynalazku, moze miec sklad chemiczny jak w podanych przykladach.Przyklad I. Stopiwo drutu proszkowego do napa¬ wania sklada sie z wegla w ilosci 2,6%, chromu w ilosci 20%, manganu' w ilosci 1,7%, krzemu w ilosci 1,4%, tytanu w ilosci 0,1%, reszta zelazo. Do mie¬ szaniny rdzeniowej dodaje sie pyl wapienny, zawie¬ rajacy Si02, Fe203, CaC03, MgC08, A1203 i inne, w w ilosci od 8% do 15% w stosunku do masy rdze¬ nia.Przyklad II. Stopiwo drutu proszkowego do na¬ pawania sklada sie z wegla w ilosci 3%, chromu w ilosci 22%, manganu w ilosci 2%, krzemu w ilosci 1,7%, tytanu w ilosci 0,5%, reszta zelazo. Do mie¬ szaniny rdzeniowej dodaje sie pyl wapienny, za¬ wierajacy Si02, Fe203, CaC03l, MgC03, A12C8 i inne w ilosci od 8% do 15% w stosunku do masy rdzenia.Stopiwo o podanym w przykladzie skladzie che¬ micznym zawiera duza ilosc twardej fazy wegliko¬ wej, skladajacej sie z weglików chromu, co zapew- 123 7513 123 751 4 nia mu wysoka odpornosc na zuzycie scierne oraz twardosc rzedu 50 HRc.Drut proszkowy samooslonowy do napawania wedlug wynalazku moze znalezc zastosowanie do dokonywania napoin, pracujacych w warunkach intensywnego scierania przy niewielkich obciaze¬ niach udarowych. Drut ten nadaje sie zwlaszcza do napawania róznego rodzaju wykladzin przeciw- sciernych, zsypów, kolan itp. Stosowanie drutu we¬ dlug wynalazku powoduje zwiekszenie trwalosci elementów, a wiec wydluzenia okresów miedzyre- montowych maszyn i urzadzen.Zastrzezenia patentowe 1. Drut proszkowy, samooslonowy do napawania, znamienny tym, ze stopiwo zawiera w swoim skla¬ dzie od 2,6% do 3% wegla, od 20% do 22% chromu, od 1,7% do 2% manganu, od 1,4% do 1,7% krzemu, od 0,1% do 0,5% tytanu, reszta zelazo. 2. Drut proszkowy, wedlug zastrz. 1, znamienny tym, ze do mieszaniny rdzeniowej dodaje sie pyl wapienny w ilosci od 8% do 15%. 5 10 ZGK 679/1110/84 — 95 egz.Cena zl 100,— PL PLThe subject of the invention is a flux cored wire intended for semi-automatic and automatic surfacing of surfaces of objects exposed to intense abrasion. A known method of increasing the durability of elements exposed to intense abrasion is the use of alloyed steel, cast steel or cast iron. The disadvantage of this method is the high cost due to the use of expensive materials and the need to heat-treat the elements. Another method is to surfac the surfaces of the objects subject to abrasive wear through the use of coated electrodes. The most commonly used manual surfacing with coated electrodes is technically and economically unprofitable due to the high laboriousness of the process and the low quality of welds. self-shielding wires. In the development of these wires, the essential criterion for assessing their suitability is the achieved durability of the padding weld, taking into account the costs. This aim was achieved by selecting the appropriate chemical composition for the self-shielding strand wire. The alloy of self-shielding stranded wire consists of: carbon in an amount from 2.6% to 3%, chromium in an amount from 20% to 22 %, manganese from 1.7% to%, silicon from 1.4% to 1.7%, titanium from 0.1% to 0.5%, the rest iron. limestone dust containing SiO 2, Fe 2 O 3, CaCO 3, MgCO 3, Al 2 O a and others in an amount from 8% to 15% by weight of the core is added to the core mixture. Gradually made with the self-shielding flux-cored wire, which is the subject of the invention, it may have the chemical composition as in the examples given. 1.7%, silicon 1.4%, titanium 0.1%, the rest iron. Lime dust containing SiO 2, Fe 2 O 3, CaCO 3, MgCO 8, Al 2 O 3 and others is added to the core mixture in an amount from 8% to 15% by weight of the core. Example II. The flux cored weld metal consists of 3% carbon, 22% chromium, 2% manganese, 1.7% silicon, 0.5% titanium, the rest iron. Lime dust, containing SiO2, Fe2O3, CaCO3l, MgCO3, A12C8 and others in an amount from 8% to 15% by weight of the core, is added to the core mixture. hard carbon phase, consisting of chromium carbides, which provides it with high abrasion resistance and a hardness of 50 HRC. intense abrasion with low impact loads. This wire is especially suitable for surfacing various types of anti-abrasive linings, chutes, elbows, etc. The use of the wire according to the invention increases the durability of elements, and thus extends the periods between assembly works of machines and devices. surfacing, characterized in that the weld metal contains from 2.6% to 3% carbon, from 20% to 22% chromium, from 1.7% to 2% manganese, from 1.4% to 1.7%. % silicon, from 0.1% to 0.5% titanium, the rest is iron. 2. Flux cored wire according to claim The process of claim 1, characterized in that lime dust is added to the core mixture in an amount of 8% to 15%. 5 10 ZGK 679/1110/84 - 95 copies Price PLN 100, - PL PL

Claims (2)

1. Zastrzezenia patentowe 1. Drut proszkowy, samooslonowy do napawania, znamienny tym, ze stopiwo zawiera w swoim skla¬ dzie od 2,6% do 3% wegla, od 20% do 22% chromu, od 1,7% do 2% manganu, od 1,4% do 1,7% krzemu, od 0,1% do 0,5% tytanu, reszta zelazo.1. Claims 1. Flux cored wire for surfacing, characterized in that the weld metal contains from 2.6% to 3% carbon, from 20% to 22% chromium, from 1.7% to 2% manganese, 1.4% to 1.7% silicon, 0.1% to 0.5% titanium, the rest iron. 2. Drut proszkowy, wedlug zastrz. 1, znamienny tym, ze do mieszaniny rdzeniowej dodaje sie pyl wapienny w ilosci od 8% do 15%. 5 10 ZGK 679/1110/84 — 95 egz. Cena zl 100,— PL PL2. Flux cored wire according to claim The process of claim 1, characterized in that lime dust is added to the core mixture in an amount of 8% to 15%. 5 10 ZGK 679/1110/84 - 95 copies. Price PLN 100, - PL PL
PL20995578A 1978-09-28 1978-09-28 Self-shielding tubular type surfacing wire PL123751B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20995578A PL123751B1 (en) 1978-09-28 1978-09-28 Self-shielding tubular type surfacing wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL20995578A PL123751B1 (en) 1978-09-28 1978-09-28 Self-shielding tubular type surfacing wire

Publications (2)

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PL209955A1 PL209955A1 (en) 1980-05-19
PL123751B1 true PL123751B1 (en) 1982-11-30

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