1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2018 07 18 Released W.Curtiss, P. Bednarczyk NA Controlled document at www.MATS Copyright 2018, Ford Global Technologies, LLC Page 1 of 3 THERMAL MATERIAL PROPERTY DETERMINATION FOR WSS-M99P51-A1 METALS AND POLYMERS, TASE, HEAT PROTECT
2、ION MODELING 1. SCOPE This specification defines the requirements for measuring selected material properties used in CAE thermal analysis simulation or equivalent modeling of automotive components made from metals (ferrous and non-ferrous) and polymeric (thermoplastics, thermosets, and thermoplastic
3、 elastomers) production materials. 2. APPLICATION This specification was released originally to communicate test methods, test parameters, sample size and recommended test facilities for thermal material property data collection. The data collected supports Thermal Aerodynamic System Engineering (TA
4、SE) modeling of various automotive components. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification does not use approved sources. Any reliable supplier meeting these requirements may be used. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than
5、 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 DENSITY at 23 +/- 2 C Report (g/cm3) (ASTM C559, ASTM D792, ISO 1183 Method A) 3.4 THERMAL CONDUCTIVITY 3.
6、4.1 Polymers: Thermoplastic resins, Thermoplastic Elastomers, Report over and Thermoset Elastomers by Guarded Heat Flow a temperature range (ASTM E1530) in table (W/ (cm.K) Sample size and test temperature: 50.8 +/- 0.25 mm diameter with uniform thickness as shown below. Test plaques with flat and p
7、arallel surfaces. The recommended thickness for each sample should be as follows: o Thermoplastics/ Elastomers: 3.2 +/- 0.025 mm o Thermoset Plastics: 2.5 +/- 0.025 mm o Rubber: 2.0 +/- 0.025 mm Test temperature range for rubber: 50C to max short term use temperature (See Table of typical rubber mat
8、erials below), report in increments of 50C up to Max short term temp. Consult materials engineering for test temperature appropriate for materials not listed below ENGINEERING MATERIAL SPECIFICATION WSS-M99P51-A1 Copyright 2018, Ford Global Technologies, LLC Page 2 of 3 Table 1: Max. Short Term use
9、temperatures for select Rubber Rubber max short term use temperatures Polymer type PUR, NR, IR ECO, IIR, BIIR, SBR, CR SBr, NBR CSM EPDM/ EPM ACM,HNBR VMQ/SI FPM/FMQ/FKM Temperature (C) 100 150 160 175 180 200 225 350 Test temperature range for thermoplastics and thermosets: 50C to max short term te
10、mperature as listed in the table below. For Resins and other thermoplastics: 50C to 20C below the melting temperature. Consult materials engineer for test temperature appropriate for other polymers not listed. Table 2: Max Short Term use temperatures for Thermoplastic Elastomers Thermoplastic Elasto
11、mers max short term use temperatures Polymer type TES/TPU TEEE TPO TPV (EPDM+PP) TPV(ACM+PA6) Temperature (C) 100 110 120 140 160 3.4.2 Metals: Ferrous and Non-Ferrous by measuring Thermal Diffusivity Report over (ASTM E1461, modified temperature range) a temperature range (W/ (cm.K) Sample size and
12、 test temperature: 10.0-12.5 mm diameter, 2 mm thick Surface must be flat and parallel within 0.5% of their thickness Test temperature range: 23C to 600C, report at 23C, 50C, 100C and then in increments of 100C up to 600C. (Note: For metals that melt below 600C, reduce the upper test temperature to
13、50C below the typical melt temperature for that material) 3.5 SPECIFIC HEAT CAPACITY Report (J/kgK) (Differential Scanning Calorimetry (DSC), ASTM E1269 for metals, ISO 11357-2, 3, 4 for polymers) Report Tg, Tm and x-y data of the scan. Plot 2 heats for polymeric materials. Thermoplastic materials:
14、Test temperature range 0 C to 20 C before the melt temperature Thermoset materials: Test Temperature range 0 C to max short term use temp. Per Table 1 Metals: Test Temperature range 23C to 600C (Note: For metals that melt below 600C, reduce the upper test limit to 50C below the typical melt temperat
15、ure for that material.) 3.6 EMISSIVITY Report (ASTM E408) Sample Size: 75 mm x 75 mm but will work with smaller samples. Samples must have a flat surface. Note: Typically, emissivity is not measured on finished parts. 4. GENERAL INFORMATION The information given below is provided for clarification a
16、nd assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. This specification is intended to complement existing Ford Engineering Material Specifications and the data collected and stored in the corporate materials database
17、. ENGINEERING MATERIAL SPECIFICATION WSS-M99P51-A1 Copyright 2018, Ford Global Technologies, LLC Page 3 of 3 Test laboratories with known test capability. Other test laboratories can be chosen as mutually agreed with Ford Materials Engineering and Ford CAE experts: THERMAL CONDUCTIVITY AND SPECIFIC HEAT CAPACITY OF POLYMERS: Datapoint Labs http:/ THERMAL CONDUCTIVITY AND SPECIFIC HEAT CAPACITY OF METALS: Thermophysical Properties Research Laboratory http:/ EMISSIVITY: AZ Technology http:/
