1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 02 10 Revised Inserted 3.0; Deleted 3.1, 3.6, 4 1998 11 23 Activated J. Lott Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 1 SOLDER, TIN BASED WSS-M11A45-A4 1. SCOPE The material defined by this s
2、pecification is a paste solder consisting of pre-alloyed powdered solder metal and a corrosive flux. The solder can be used in both flame and induction brazing processes. 2. APPLICATION This specification was released originally for soldering components during manufacturing of steel fuel tanks. 3. R
3、EQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 METAL COMPOSITION, % Tin Balance Copper 0.8 - 1.2 Antimony 0.25 max Lead 0.05 max Bismuth 0.15 max Ca
4、dmium 0.025 max Iron 0.02 max Zinc 0.005 max Silver 0.015 max 3.3 OVERALL COMPOSITION, % Metal 77 - 82 Fluoride 1 - 3 Other Remainder 3.4 PHYSICAL PROPERTIES Solidus 227 +/- 2 C Liquidus 243 +/- 16 C NOTE: Solidus and Liquidus values are listed for reference only. The actual temperatures will vary depending on the chemical composition (amount of tin and copper) of the solder. 3.5 SHELF LIFE Stored in sealed container at 6 months min approximately 21 C
