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Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 Romania – Republic of Serbia IPA Cross-border.

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Presentation on theme: "Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 Romania – Republic of Serbia IPA Cross-border."— Presentation transcript:

1 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 Romania – Republic of Serbia IPA Cross-border Cooperation Programme Promoting new ecologic filler alloys for soldering, based on the non-ferrous ore of the Romanian-Serbian cross-border area ECOSOLDER

2 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 Romania – Republic of Serbia IPA Cross-border Cooperation Programme LOW MELTING ECOLOGICAL SOLDER ALLOYS BASED ON TIN AND INDIUM Dr A.Milosavljevic, Dr A.Kostov, Eng R.Todorovic Mining and Metallurgy Institute Bor SERBIA

3 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 INTRODUCTION AND REQUIREMENTS FIND A SUBSTITUTE FOR COMMON SOLDERS LEAD-FREE CADMIUM FREE WEEE AND ROHS

4 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 INTRODUCTION AND REQUIREMENTS 48Sn52In – the lowest melting point (118°C) 96.5Sn3.5Ag – high melting temperature Binary solder alloys do not satisfy some features, so alloys based on tin with addition of silver and indium may be the proper solution for replacement lead solders

5 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 INITIAL DATA FOR Sn-In-Ag ALLOYS alloyXiat % SnInAgSnInAg L10.50.350.15503515 L20.60.280.12602812 L30.70.210.0970219 L40.80.140.0680146 L50.90.070.039073

6 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 Sn-In-Ag ALLOYS METALOGRAPHY L1 Sn50In35Ag15 200x L2 Sn60In28Ag12 125x L3 Sn70In21Ag9 125x

7 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 INVARIANT REACTIONS IN Ag-In-Sn SYSTEM ReactionTemperature, K Composition of liquid phase L+Ag 3 Sn↔(Sn)+ζ500Sn-1,9In-3,9Ag L+(Sn)↔γ+ζ482Sn-6,8In-3,3Ag L+ζ↔γ+Ag 2 In453Sn-25,5In-2,5Ag L+(In)↔β+Ag 2 In408Sn-84,6In-1,3Ag L+Ag 2 In↔β+AgIn 2 392Sn-61,1In-1,0Ag L↔β+γ+Ag 2 In387Sn-52,2In-0,9Ag

8 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 VERTICAL PROJECTION FOR Sn-In-Ag SYSTEM A1-Ag10In18Sn72 B1-Ag10In30Sn60 C1-Ag10In45Sn45

9 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 SUMMARY ECOLOGICAL SOLDER ALLOYS BASED ON TIN AND INDIUM ARE SUITABLE ADITION OF SILVER TO Sn-In BINARY ALLOY The most suitable are alloys with high percent of tin, and with low content of indium and silver

10 Common borders. Common solutions. EUROPEAN UNION GOVERNMENT OF ROMANIA SERBIAN GOVERNMENT Structural Funds 2007-2013 Thank you for your attention!

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