PL7003B1 - The method of welding cast iron. - Google Patents

The method of welding cast iron. Download PDF

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Publication number
PL7003B1
PL7003B1 PL7003A PL700325A PL7003B1 PL 7003 B1 PL7003 B1 PL 7003B1 PL 7003 A PL7003 A PL 7003A PL 700325 A PL700325 A PL 700325A PL 7003 B1 PL7003 B1 PL 7003B1
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PL
Poland
Prior art keywords
cast iron
welding
welding cast
silicon
self
Prior art date
Application number
PL7003A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL7003B1 publication Critical patent/PL7003B1/en

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Description

Dotychczas nie istnieje sposób spawa¬ nia zeliwa, któryby dawal rezultaty zada¬ walajace, pomimo, ze spojenie dwóch ka¬ walków ze soba tak, aby wytrzymalosc na zlamanie w miejscu spojonem pozostala nienaruszona, posiada nadzwyczaj donio¬ sle znaczenie. Srodki stosowane zwykle do spawania w danym wypadku nie daja sie zastosowac, gdyz w rezultacie otrzymu¬ je sie w miejscach spojenia materjal u- twardzony i kruchy.Hartowanie to nastepuje dzieki temu, ze czesc stopiona podczas spawania, szyb¬ ko krzepnie i zamiast zeliwa surowego, ja¬ kie bylo uprzednio, powstaje w miejscu spawanem kruchy stop, podobny do zeliwa twardego.Wynalazek polega wiec na tern, ze spa¬ wanie uskutecznia sie na drodze elek¬ trycznej lub samospawania, zapomoca pretów zawierajacych 0,1 — 15,0% glinu lub 3,0—15,0% krzemu. W ten sposób u- daje sie, przez odpowiednie miarkowanie zawartosci glinu lub krzemu w precie, za¬ leznie od wielkosci miejsca spawanego, o- trzymac strukture scisle okreslona. Prety zawierajace glin maja te wyzszosc, ze przewodza cieplo lepiej i wogóle dzialajaskuteczniej; prety zas, zawierajace krzem, prety zawierajace od 0,1% do 15,0^ gli- sa natomiast tansze. nu lub od 3% do 15,0% krzemu. PL PLHitherto there is no method of welding cast iron which gives satisfactory results, although the bonding of two blocks to each other so that the in-place fracture strength remains intact is of extremely important importance. The means usually used for welding are not applicable in this case, as the result is a hardened and brittle material at the joints. This hardening occurs because the part melted during welding solidifies quickly and instead of crude cast iron As before, a brittle alloy is formed where welded is, similar to hard cast iron. The invention therefore consists in the fact that the welding is performed by electric or self-welding, using rods containing 0.1 - 15.0% aluminum or 3.0-15.0% silicon. In this way, by appropriately measuring the content of aluminum or silicon in the rod, depending on the size of the welded area, it is possible to maintain a precisely defined structure. Alumina prets have the advantage that they conduct heat better and are generally more effective; On the other hand, bars containing silicon, bars containing from 0.1% to 15.0 ^ of glium are cheaper. nu or 3% to 15.0% silicon. PL PL

Claims (1)

1. Zastrzezenie patentowe. Gebr, Bohler&Co. Aktiengesellschaft Sposób spawania zeliwa, znamienny Zastepca: M. Skrzypkowski, tern, ze spawanie odbywa sie zapomoca rzecznik patentowy. elektrycznosci lub samospawania, stosujac Druk L. Boguslawskiego, Warszawa. PL PL1. Patent claim. Gebr, Bohler & Co. Aktiengesellschaft A method of welding cast iron, characterized by Deputy: M. Skrzypkowski, tern that the welding is carried out with the help of a patent attorney. electricity or self-welding, using Druk L. Boguslawski, Warsaw. PL PL
PL7003A 1925-12-04 The method of welding cast iron. PL7003B1 (en)

Publications (1)

Publication Number Publication Date
PL7003B1 true PL7003B1 (en) 1927-04-30

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