PL54590B1 - - Google Patents

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Publication number
PL54590B1
PL54590B1 PL116478A PL11647866A PL54590B1 PL 54590 B1 PL54590 B1 PL 54590B1 PL 116478 A PL116478 A PL 116478A PL 11647866 A PL11647866 A PL 11647866A PL 54590 B1 PL54590 B1 PL 54590B1
Authority
PL
Poland
Prior art keywords
copper
welding
electrodes
electrode
alloys
Prior art date
Application number
PL116478A
Other languages
Polish (pl)
Inventor
dr inz. Jan Wegrzyn doc.
Original Assignee
Instytut Spawalnictwa
Filing date
Publication date
Application filed by Instytut Spawalnictwa filed Critical Instytut Spawalnictwa
Priority to CH637867A priority Critical patent/CH462345A/en
Priority to NL6708629A priority patent/NL6708629A/xx
Priority to SE10015/67*A priority patent/SE312617B/xx
Priority to FR118911A priority patent/FR1534623A/en
Priority to DE1967I0034475 priority patent/DE1615335B1/en
Priority to GB41317/67A priority patent/GB1172297A/en
Priority to US667403A priority patent/US3521028A/en
Publication of PL54590B1 publication Critical patent/PL54590B1/pl

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Description

Przedmiotem niniejszego wynalazku jest elek¬ troda do lukowego spawania miedzi i stopów miedzi, skladajaca sie z rdzenia miedzianego lub ze stopu miedzi oraz z grubej otuliny prasowanej, zawierajacej równoczesnie skladniki stabilizujace luk, odtleniajace spoine i zabezpieczajace ja przed dostepem tlenu, wiazace wodór oraz tworzace reakcje egzotermiczne. Elektroda moze byc stoso¬ wana do spawania miedzi i stopów miedzi metoda na zimno jak równiez i po uprzednim podgrzaniu miedzi.Miedz spawa sie przewaznie metoda acetyleno- wo-tlenowa oraz metoda spawania w atmosferze argonu. Elektrodami otulonymi mozna bylo spa¬ wac do niedawna wylacznie czesci miedziane o nieznacznych grubosciach. Spowodowane to by¬ lo brakiem odpowiednich elektrod miedzianych do spawania metoda na zimno blach o znacznych grubosciach. Znane elektrody, mimo, ze w rady¬ kalny sposób uproscily technologie spawania mie¬ dzi, byly stosowane w ograniczonym stopniu ze wzgledu na bardzo zlozony i pracochlonny sposób produkcji elektrod oraz koniecznosc pakowania elektrod do bezwzglednie hermetycznych opako¬ wan.Dzieki rozszerzonym badaniom udalo sie upros¬ cic technologie produkcji elektrod do spawania miedzi i jej stopów metoda na zimno przy czym jakosc nowoopracowanej wedlug wynalazku elek¬ trody ulegla dodatkowo znacznej poprawie. Opra- 10 20 30 cowana wg wynalazku elektroda nie wymaga prze¬ chowywania w hermetycznych opakowaniach, a produkcja jej podobna jest do produkcji standar¬ towych elektrod stalowych.Zamiast stosowania podwójnych otulin, a to pierwszej prasowanej i drugiej zanurzanej, dodat¬ kowo zbrojonych drutem stosuje sie obecnie wy¬ lacznie jedna otuline prasowana. Wlasciwosci dwóch otulin poprzednich elektrod do spawania miedzi metoda na zimno skoncentrowano obecnie w jednej otulinie. Uzyskano to przez zastosowanie nowych skladników w otulinie o jeszcze skutecz¬ niejszym dzialaniu metalurgiczno-fizycznym od skladników stosowanych do produkcji poprzednich elektrod. Glównymi skladnikami w otulinie, joni¬ zujacymi luk sa zwiazki cyrkonu na przyklad krzemian cyrkonu w ilosci do 20ID/o, a ponadto zwiazki potasu i sodu.Glównymi skladnikami wiazacymi wodór, osla¬ niajacymi luk przed dostepem tlenu i zabezpiecza¬ jacymi spoine przed utlenieniem sa fluorki i fluo¬ rokrzemiany na przyklad litu, sodu, potasu, alumi¬ nium w ilosci do SWo. Skladnikami egzotermicz¬ nymi i metalurgicznymi sa proszki aluminium i magnezu w ilosci do 30°/o.Technologia spawania miedzi i stopów miedzi za pomoca elektrody wedlug wynalazku jest bar¬ dzo prosta i zblizona do technologii spawania stali elektrodami stalowymi glebokowtapiajacymi. Duze bowiem napiecie luku przy spawaniu elektroda 5459054590 wedlug wynalazku, wynoszace powyzej 45 V po¬ zwala na stosowanie glebokowtapiajacej techniki spawania. Elektroda wedlug wynalazku umozliwia wykonanie spoin nie tylko czolowych ale i pa¬ chwinowych, przy czym spoiny te nie wymagaja kucia ani obróbki cieplnej.Wydajnosc spawania miedzi elektroda wedlug wynalazku jest okolo do 30 razy wieksza od wy¬ dajnosci spawania gazowego. Elektroda wedlug wynalazku nadaje sie równiez do spawania i na¬ pawania róznych stopów z miedzi lacznie z mosia¬ dzami.Wlasnosci mechaniczne stopiwa elektrod wedlug wynalazku podobne sa do miedzi przerobionej pla¬ stycznie. Równiez przewodnictwo elektryczne i cieplne stopiwa tych elektrod zblizone jest do przewodnictwa cieplnego i elektrycznego miedzi.Stopiwo elektrod miedzianych wedlug wynalazku 5 zawiera powyzej 99,8l0/o Cu. PLThe subject of the present invention is an electrode for arc welding of copper and copper alloys, consisting of a copper or copper alloy core and a thick compressed cover, containing components that stabilize the void, deoxidize the weld and protect it against oxygen, bind hydrogen and create reactions. exothermic. The electrode may be used for welding copper and copper alloys by the cold method as well as by preheating the copper. Copper is usually welded by the oxy-acetylene method and by the welding method in an argon atmosphere. Until recently, coated electrodes could only be used to weld copper parts of small thickness. This was due to the lack of suitable copper electrodes for cold welding of sheets of considerable thickness. Known electrodes, despite the fact that they radically simplified the technology of copper welding, were used to a limited extent due to the very complex and labor-intensive method of electrode production and the necessity to pack the electrodes in absolutely hermetic packaging. ¬ cic technologies for the production of electrodes for welding copper and its alloys by the cold method, while the quality of the electrode, newly developed according to the invention, was additionally significantly improved. The electrode developed in accordance with the invention does not need to be stored in hermetic packages, and its production is similar to the production of standard steel electrodes. Instead of using double coatings, i.e. the first pressed and the second immersed, additionally reinforced with wire, there is now only one pressed cover. The properties of the two coatings of the previous cold welding electrodes are now concentrated in one coating. This was achieved by using new components in a coating with even more effective metallurgical and physical effects than those used in the production of the previous electrodes. The main components in the coating ionizing the gap are zirconium compounds, for example zirconium silicate up to 20% per cent, and also potassium and sodium compounds. The main components that bind hydrogen, protect the gap from oxygen and prevent the joint from oxidizing. fluorides and fluorosilicates, for example, lithium, sodium, potassium, and aluminum up to SWO. The exothermic and metallurgical components are aluminum and magnesium powders in an amount of up to 30%. The high arc voltage of the welding electrode 5459054590 according to the invention, exceeding 45 V, allows the use of a deep-seam welding technique. The electrode according to the invention makes it possible to make not only butt welds but also fillet welds, the welds requiring neither forging nor heat treatment. The welding efficiency of the electrode copper according to the invention is approximately 30 times greater than that of gas welding. The electrode according to the invention is also suitable for the welding and welding of various copper alloys, including brass. The mechanical properties of the weld metal of the electrodes according to the invention are similar to plastically processed copper. Also, the electrical and thermal conductivity of the weld metal of these electrodes is similar to the thermal and electrical conductivity of copper. The alloy of the copper electrodes according to the invention 5 contains more than 99.8% Cu. PL

Claims (1)

1. Zastrzezenie patentowe Elektroda do lukowego spawania miedzi i stopów miedzi zlozona z rdzenia wykonanego z miedzi lub 10 ze stopów miedzi znamienna tym, ze jej otulina za¬ wiera 5 do 20°/o krzemianu cyrkonu do 90% fluor¬ ków i fluorokrzemianów litu, potasu, sodu i alumi¬ nium oraz do 30% proszku aluminium, magnezu lub ich stopów. WDA-l. Zam. 1505/67. Nakl. 430 egz. PL1. Patent claim Electrode for arc welding of copper and copper alloys consisting of a core made of copper or copper alloys, characterized in that its coating contains 5 to 20% of zirconium silicate to 90% of fluorides and lithium fluorosilicates, potassium, sodium and aluminum and up to 30% powders of aluminum, magnesium or their alloys. WDA-l. Order 1505/67. Nakl. 430 copies PL
PL116478A 1966-09-15 1966-09-15 PL54590B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH637867A CH462345A (en) 1966-09-15 1967-05-05 Welding electrode for arc welding of copper and copper alloys
NL6708629A NL6708629A (en) 1966-09-15 1967-06-21
SE10015/67*A SE312617B (en) 1966-09-15 1967-06-30
FR118911A FR1534623A (en) 1966-09-15 1967-08-24 Electrode for arc welding of copper and copper alloys
DE1967I0034475 DE1615335B1 (en) 1966-09-15 1967-08-29 Press-jacket electrode for arc welding of copper and copper alloys
GB41317/67A GB1172297A (en) 1966-09-15 1967-09-11 Arc-Welding Electrode for Welding Copper and Copper Alloys
US667403A US3521028A (en) 1966-09-15 1967-09-13 Electrode for welding copper and copper alloys

Publications (1)

Publication Number Publication Date
PL54590B1 true PL54590B1 (en) 1967-12-27

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