Development of a method for determination of phosphorus in the solder VPr18

Titov V.I., Goundobin N.V., Pilipenko L.V.
UDC
621.791.3:543.847
DOI
10.18577/2307-6046-2015-0-11-11-11
Article PDF (Russian) (323.56 KB)
How to cite
Titov V.I., Goundobin N.V., Pilipenko L.V. Development of a method for determination of phosphorus in the solder VPr18 // Proceedings of VIAM. 2015. No. 11. DOI: 10.18577/2307-6046-2015-0-11-11-11. URL: https://test.viam.ru/en/journal/2015/11/11
Abstract

In this paper, the possibility for determination of small amounts of phosphorous in the lead-based VPr18 solder used for soldering wires is shown. Small amounts of phosphorous additives can improve corrosion resistance and strength of the material. Thus solder can operate up to temperatures of 270°C. Welding and solder quality depend on the solder composition by major alloying and impurity elements. In this connection it is necessary to clearly regulate the chemical composition of solders and control the content of chemical elements in their composition. A method of determination of small amounts (0,007 wt. %) of phosphorus in the solder VPr18 was developed. When the content of of phosphorus in the the solder material is large it is necessary to build another calibration graph.

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