1、ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions2003 01 21 Revised Para 3.0 inserted ; Para 3.1, 3.2, 3.9, 4 deleted 2000 09 25 Revised Updated A. Cockman 1988 09 15 107002-185 CF4S Released Printed copies are uncontrolled Page 1 of 3 Copyright 2002, Ford G
2、lobal Technologies, Inc. ADHESIVE, ONE PART UV CURABLE ESF-M2G321-A 1. SCOPEThe material defined by this specification is a one part, thixotropic adhesive.2. APPLICATIONThis material was released originally as an adhesive for tab bonding.3. REQUIREMENTSMaterial specification requirements are to be u
3、sed for initial qualification of materials.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). 3.3 VISCOSITY (ASTM D 2393, #7 spindle at 20 RPM) At 25 +/- 1 C 8,000 - 12
4、,000 cP 3.4 THIXOTROPIC RATIO 7 min 3.5 RECOVERY AT 25 +/- 1 C 85 % min Test Method: Viscosity is measured as follows: (1) Fill a 400 ml plastic beaker with adhesive and cover. (2) Equilibrate for 24 h at 25 +/- 1 C. (3) Insert spindle #7. (4) Turn on viscometer for 60 at 2 RPM. Record viscosity wit
5、hout turning off the spindle rotor. NOT TO BE USED FOR NEW DESIGN2015 01 07 N Status No replacement named L. Sinclair, NAENGINEERING MATERIAL SPECIFICATION ESF-M2G321-A Page 2 of 3 Copyright 2002, Ford Global Technologies, Inc. (5) Repeat (60 s) at 10 RPM, record reading. (6) Repeat (60 s) at 20 RPM
6、, record reading. (7) Repeat (60 s) at 2 RPM, record reading. Calculations: Viscosity: Defined as measured at the 20 RPM speed (step #6) Note: All steps must be followed before calculating viscosity. Thixotropic ratio: The viscosity at 2 RPM (step #4) divided by the viscosity at 20 RPM (step #6) Rec
7、overy: The 2 RPM viscosity measured at step #7 divided by the viscosity measured at step #4 x 100. 3.6 SPEED OF CURE, max 15 s This test is performed using either flat, clean steel coupons or glass microscope slides of 25 mm width. (A) Place 0.36 mm drop on one slide. Let the solvent flash off for 2
8、0 - 30 s. (B) Press the two slides together with strong finger pressure (the adhesive will spread out to approximately 645 mm2. (C) Place directly over and in contact with a 2 bulb, 8 watt blue ultraviolet lamp such as the PC-1 available from the Dymax Corporation. (D) Carefully and gently test the
9、ends of the slides for movement every 5 seconds. Record the time when there is resistance to movement. 3.7 TENSILE STRENGTH, min 14 kPa (ASTM D 1002) ASTM D 1002 Tensile Test (A) Scribe 12.7 mm overlap marks on ASTM D 1002 steel test coupons. (B) Apply activator to one steel coupon. (C) Apply a 1.6
10、mm bead across the middle of the bond area on the mating steel coupon. (D) Assemble and clamp with a 90 N spring clamp for 24 h. (E) Test tensile on a standard tensile testing machine, at a 12.7 mm per minute pullspeed. ENGINEERING MATERIAL SPECIFICATION ESF-M2G321-A Page 3 of 3 Copyright 2002, Ford
11、 Global Technologies, Inc. 3.8 TENSILE STRENGTH, min 10.5 kPa (ASTM D 1002 after thermal shock) Cold rolled steel test coupons are prepared per ASTM D 1002. After a 24 h 24 C cure they are subjected to the following thermal shock cycle: (A) 1 h at 150 C. (B) Immediately drop into ice water. Allow to cool for 10 minutes. (C) Immediately repeat (A) and (B) for a total of 3 cycles. (D) Allow to warm up to 24 C and test for tensile strength on a standard tensile tester at 12.7 mm per minutes.
