1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 11 17 Revised Format Updated 2002 07 25 Revised Removed Inactive ESB-M3D145-B “as molded“ and after exposure to 163 +/- 2 C for 30 min using Taylor Hobson Model Surtronic 3 or equivalent equipment. Each reading will be the average of four
2、 13 mm segments along a 51 mm 1/4 m reading of the entire part. 3.3.2 Long Term Waviness Parts shall exhibit no more waviness than the Ford minimum acceptance part approved by the affected product engineering office. Test parts shall be painted black with a paint having the same specular gloss as th
3、e minimum acceptance part for comparison. ENGINEERING MATERIAL SPECIFICATIONESB-M3D145-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 5 3.3.3 Physical Properties Specific requirements for physical properties of molded parts, such as impact strength, flexibil
4、ity, etc., where required, shall be specified on the engineering specification (ES). 3.3.4 Heat Resistance Test Method: Expose samples in a mechanical convection oven to achieve a surface temperature of 163 +/- 2 C for 30 min. 3.3.4.1 Unpainted Parts or Assemblies Shall not exhibit any surface imper
5、fections such as blisters, pits, dry spots or cracks, etc. Surface imperfections shall be determined using a red concentrate dye in oil suspension (Magnaflux Corporation No. 9CM or equivalent). 3.3.4.2 Painted Parts or Assemblies Shall not exhibit any surface cracking, pitting, warpage or blistering
6、 of any type. 3.3.5 Adhesive Bonded Assemblies All parts which are bonded with a normal adhesive system used for glass fiber reinforced polyester shall meet the requirements of ESB-M11P27-A. 3.3.6 Paintability Molded parts shall be process in keeping with the best commercial practice to insure good
7、paintability, i.e., “as molded“ surface shall be free of contaminants which would affect paint adhesion, when painted in accordance with released Ford Motor Company specifications for painting glass fiber reinforced polyester plastics. Exterior, highly visible parts which are furnished primed, or fu
8、lly painted shall conform to the requirements of Engineering Performance Specification ESB-M2P7-B1. 3.3.7 Parts should be “in mold“ coated for improved surface finish, unless approval not to “in mold“ coat is received from the responsible design activities, SQA and the B&CE Product Paint Office. “In
9、 mold“ coated parts shall conform to the requirements of Engineering Performance Specification ESB-M2P124-A1 & A2. 3.4 FLAMMABILITY (ISO 3795) mm/minute Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surface. ENGINEERING MATE
10、RIAL SPECIFICATIONESB-M3D145-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 5 of 5 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 COEFFICIENT OF LINEAR THERMAL
11、 EXPANSION 1.0 - 3.2 x 10-5/C (ASTM D 696) 4.2 FLEXURAL FATIGUE STRENGTH 4.2.1 ASTM D 671, Type A unnotched No cracking specimens, 500,000 cycles, 31 MPa reverse stress 4.2.2 Owens-Corning Technical Paper No cracking “TC-RPL-69-30“ (Load input required to obtain +/- 10 and 1,000,000 cycles) 4.3 MOLD SHRINKAGE +0.00075 to +0.0015 (ASTM D 955, cold mold - cold part)
