1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 08 11 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1997 10 28 Activated K. Gerhards Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2 POLYOL FOR ENERGY ABSORBING PUR FOAM WSS-M5D23-A 1
2、. SCOPE The material defined by this specification is a polyether polyol (component A) with the necessary additives e.g. catalysts and stabilizers. 2. APPLICATION This specification was released originally for material used for producing energy absorbing PUR foam for bumper shells. 3. REQUIREMENTS 3
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). 3.4 VISCOSITY 2200 +/- 3000 mPas (ASTM D 2849, test temperature 25 +/- 0.5 C, spindle no. 2, rotational frequency 12/m
4、inute) 3.5 CUP TEST (FLTM BO 160-02) Mixing Ratio 100 : 113.6 Test Portion of Component A 39.8 g Test Portion of Component B 45.2 g Component B according to specification S-M4D4900-A Mixing Time 10 s 3.5.1 Creaming Time 16 +/- 4 s 3.5.2 Rising Time 70 +/- 15 s 3.6 FORMATION OF LUMPS Pour 250 g of co
5、mponent A, as delivered, through a wire mesh (width of mesh 0.8 mm). The material shall show no oversize residue. 3.7 COLOR Black or according to Engineering Drawing. ENGINEERING MATERIAL SPECIFICATION WSS-M5D23-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 o
6、f 2 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 STORAGE STABILITY (From date of receipt at Ford Motor Company) Minimum 3 months at a temperature between +18 and +25 C. The material shall be stored in air tight containers.
