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Repair Welding of the Massive Cast

Bęczkowski R.

Archives of Foundry Engineering

2017

Vol. 17, iss. 2

5--8

The rebuilding technologies are used to develop surface of ladle. Among many welding methods currently used to obtain surface layer without defects one of the most effective way of rebuilding is using metal arc welding. This additional material gives more possibilities to make expected quality of rebuild surface. Chemical composition, property and economic factors allow to use metal wire. Because of these reasons, solid wire gives opportunity to be wildly used as material to rebuild or repair the surface in different sectors of industry. The paper shows a few ways to rebuild the surface in the massive cast with the use of metal active gas welding for repair. The work presents studies of defect in the massive cast. It contains the pictures of microstructures and defects. The method of removing defects and the results of checking by visual and penetrant testing methods are shown. The papers describes the methodology of repair the ladle with metal active gas welding, preheating process and standards non destructive testing method.

Techniki spawalnicze w odlewnictwie. Napawanie

Wojciechowski W., Kowalski J. S.

Archives of Foundry Engineering

2013

Vol. 13, iss. 1 spec.

87--90

W artykule omówiono problemy związane z naprawami wad odlewniczych. Przeanalizowano możliwości naprawy odlewów metodami spawalniczymi. Opisano technologię naprawy przez napawanie wlewnic wykonanych z żeliwa szarego. Napawanie prowadzono ręcznie elektrodami otulonymi oraz w osłonie gazów metodą MAG. Oceniono mikrostrukturę stref napawanych naprawianych odlewów oraz wyniki pomiarów twardości i rozkład mikrotwardości.

In this paper discusses issues related to the repair of large castings. Analyzed the possibility repair of castings of welding methods. Describes the technology of repair by welding of cast iron ingot molds. Welding with coated electrodes was carried out manually and gas shielded MAG. Rated zones padded structure and performance measurement and distribution of microhardness.

Application of microtomography in the detection and quantification of defects in cast composites

Gawdzińska K., Wojnar L.

Archives of Foundry Engineering

2008

Vol. 8, iss. 1 spec.

103--108

This article presents possible applications of microtomography, the method for the detection and quantitative evaluation of defects found in metallic composite materials. The examined specimens included casts produced by the ex situ method, i.e. composite with saturated short fibre reinforcements and suspension composites made by the mechanical mixing method.

W artykule zaprezentowano możliwości metody do wykrywania i opisu wad w metalowych materiałach kompozytowych. Badano odlewy wytworzone metodą ex situ tj. kompozytu z nasycanym zbrojeniem (włókno krótkie) oraz kompozyty wytwarzane metodą mechanicznego mieszania (kompozyty zawiesinowe).