1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2012 07 25 N-Status No replacement A. Wedepohl, FNA 2005 02 04 Revised Inserted 3.0; Deleted 3.3, 4 1985 03 07 Released C102-PF906204-C7 Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 2 SOLDER, PASTE (
2、50 SN/50 PB) NOT FOR NEW DESIGN ESA-M11A24-A 1. SCOPE The material defined by this specification is a paste solder consisting of a mixture of prealloyed powdered solder metal and an organic-type flux. 2. APPLICATION This material was released originally for soldering operations in the manufacture of
3、 fuel tanks. 3. REQUIREMENTS 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). 3.1 COMPOSITION OF MATERIAL (ASTM B 486) Solder 76% min Flux 24% max 3.1.1 Solder Analys
4、is (ASTM E 46) Tin 48 - 52% Antimony 0.20 - 0.50 Bismuth 0.25 max Copper 0.08 max Iron 0.02 max Zinc 0.005 max Aluminum 0.005 max Arsenic 0.025 max Lead Remainder 3.1.2 Flux and Vehicle Analysis (ASTM B 486) Water 14% max Solvent 8% max Non-volatile material 78% min 3.2 STABILITY The flux should be
5、homogeneous and uniformly distributed throughout the paste. The material must remain stable and show no evidence of separation, caking or lumping in the original containers. ENGINEERING MATERIAL SPECIFICATION ESA-M11A24-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 2 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. Solidus 183 C Liquidus 216 C
