1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2014 10 21 N Status No replacment named L. Sinclair, NA 2000 09 08 Activated R. Greenshields Page 1 of 4 Copyright 2014, Ford Global Technologies, Inc. SEALER, UNDERHEAD FASTENER SYSTEMS, DRY FILM WSS-M4G365
2、A SEALER, UNDERHEAD FASTENER SYSTEMS, DRY FILM WSS-M4G365-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are pre-applied gasket type sealants, which are applied to the underhead of fastener and insert riveting systems. 2. APPLICATION These specifications wer
3、e originally released for gallery plugs and inserts where sealing is required. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to the Companys Quality System
4、Requirements. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS IR spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspo
5、nd to the reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested und
6、er the same conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION WSS-M4G365-A/A2 Page 2 of 4 Copyright 2000, Ford Global Technologies, Inc. 3.4 CURED SEALANT PROPERTIES Unless otherwise noted a fully cured sheet of the gasket sealant material shall be prepared in an ASTM mold, (
7、127 x 127 x 1.9 mm). A A2 3.4.1 Colour Blue Yellow 3.4.2 Specific gravity, range, kg/L 1.00 1.04 1.12 1.16 (ASTM D 792, Method A) 3.4.3 Hardness 35 - 55 35 - 55 (Shore A) (Shore D) 3.4.4 Shear strength, min, N/mm2. 3.5 14.2 (As per BS5350 pt C5, on steel) 3.4.5 Temperature Range, C - 40 - 150* - 40
8、 150 3.4.6 Elasticity, min, % 490 27 3.4.7 E-modulus (100% extension), N/mm2 0.625 N/A 3.4.8 Tensile Strength, N/mm2 6.5 5.5 (DIN 53504) * A material is not suitable for Automatic Transmission Fluid (clause 3.5.4) at temperatures above 120 C. 3.5 RESISTANCE TO FLUIDS AND TEMPERATURES No evidence of
9、 leakage under ultra-violet light. Test Method Preparation of test assemblies: Using M16 1.5 ( 6g) Headed plugs with a surface finish in accordance with S309 (WX 100) that have sealer compound, taken from production batches, applied to the under head must be screwed into a suitable vessel capable of
10、 being pressurised to 4 bar minimum for the test duration. The female thread in the pressure vessel shall be un-plated, clean and dry to a 6H tolerance. A clamping force of 35 +/- 2 Nm shall be applied to the plug. Fill prepared test assemblies with fluid as specified in clauses 3.5.1, 3.5.2, 3.5.3,
11、 and 3.5.4 respectively and add a fluorescent dyestuff. Subject test assemblies to test conditions specified in clauses 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.5.5 and 3.5.6. ENGINEERING MATERIAL SPECIFICATION WSS-M4G365-A/A2 Page 3 of 4 Copyright 2000, Ford Global Technologies, Inc. 3.5.1 Water/Antifreeze Re
12、sistance Antifreeze to WSE-M97B44-B diluted to 40% with water. The test period shall be 5 hours at 120 +/- 2 C with test assembly pressurised to 2 bar. 3.5.2 Oil Resistance Oil to WSE-M2C903-A2 (SAE 10W-30) for 5 hours at 150 +/- 2C with the test assembly pressurised to 4 bar. 3.5.3 Fuel Resistance
13、ASTM Fuel C + 15% methanol for 5 hours at 20 +/- 2 C pressurised to 4 bar. 3.5.4 Automatic Transmission Fluid Resistance Automatic transmission fluid to WSS-M2C202-B for 5 hours at *150 +/- 5 C with the test assembly pressurised to 4 bar. 3.5.5 Heat Resistance Condition test assemblies for 5 hours a
14、t 150 +/- 2 C then subject them to Clauses 3.5.1, 3.5.2, 3.5.3 and 3.5.4 when the test assemblies have returned to 20 +/- 2 C. 3.5.6 Cold Resistance Condition test assemblies for 5 hours at 40 +/- 2 C then subject them to Clauses 3.5.1, 3.5.2, 3.5.3 and 3.5.4 when the test assemblies have returned t
15、o 20 +/- 2 C. * See 3.4.5 (A) 3.6 RESISTANCE OF AGED MATERIAL Test Method Prepare appropriate token samples of the material to be tested and subject to the following. 3.6.1 Heat Resistance Condition the token samples for 7 days at 150 +/- 2 C. Then subject them to the test conditions detailed in Cla
16、uses 3.4.8 when the token samples have returned to 20 +/- 2 C. Resultant values after heat exposure shall be max - 25% of original values. 3.6.2 Cold Resistance Condition the token samples for 7 days at -40 +/- 2 C then subject them to the test conditions detailed in Clauses 3.4.8 when the token sam
17、ples have returned to 20 +/- 2 C. Resultant values after cold exposure shall be max - 25% of original values. ENGINEERING MATERIAL SPECIFICATION WSS-M4G365-A/A2 Page 4 of 4 Copyright 2000, Ford Global Technologies, Inc. 3.7 QUALITY The material shall be received, pre-applied to the full circumferenc
18、e of the sealing surface in a smooth homogeneous form, free from foreign material and properties detrimental to normal production use. For fasteners that are threaded to the underhead, material is permissible in the thread run-out. It shall be consistent in color and texture and free from objectiona
19、ble odors during normal production and storage. It shall be suitable for the intended application. 3.8 STORAGE STABILITY Parts supplied shall still meet the requirements of this specification 6 months after receipt by Ford when stored at 5 to 32 C with no direct heat or sunlight. 3.9 ADDITIONAL REQU
20、IREMENTS Additional requirements for material and/or manufactured parts may be specified on the Engineering drawing, Engineering parts specification, performance specification, System Design Specification (SDS) and/or Component Design Specification (CDS). 3.10 SUPPLIERS RESPONSIBILITY All materials
21、supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved under this specification, whether or not such changes affect the materials ability to meet the specific
22、ation requirements, the Supplier shall notify the affected Purchasing, and Materials Engineering activities (with reasons) of the proposed changes. Upon notification of the Company, further instructions will be provided. Note: Suppliers should be prepared to provide test data and samples demonstrati
23、ng compliance to this specification, if requested. Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in Restricted Substance Management Standard WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS Materials d
24、efined by this specification for direct supply to the Company must have prior approval. Certain materials subcontracted by part suppliers may also require prior approval. These include materials critical to the Companys business for regulatory, safety, environmental or compatibility requirements or
25、contractual agreements. Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Materials Engineering activity. Upon request, the Supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of this specification.
