1、 INTERNATIONAL TRUCK AND ENGINE CORPORATION TMS (TRUCK MATERIAL SPECIFICATION) NUMBER: TMS-7039 TITLE: Polyethylene, Unfilled, Molded REVISION: F WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering DATE ISSUED: August 2005 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR
2、CURRENT REVISION This specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicabili
3、ty of regulatory limits prior to use. Change Notice: Modified UV specification in Section 4.2.3. Reference: File 30-14D Keywords: Molded Polyethylene 1.0 APPLICATION This specification covers unfilled polyethylene thermoplastic material suitable for manufacture into finished parts by injection moldi
4、ng, extrusion, vacuum forming, or any other feasible molding process. Parts such as defroster nozzles, heater/air conditioning ducts, and wheel splash panels are typical applications. 2.0 SCOPE This specification covers the requirements for basic material properties (cell limits), molded part proper
5、ties (suffixes), and quality. 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard QS-9000 (ISO 9000 or TS-16949) ASTM D 792
6、INTERNATIONAL IQR Quality Standard ASTM D 256 ASTM D 1693 INTERNATIONAL Manufacturing Std. D-13 ASTM D 648 ASTM D 1238 INTERNATIONAL TMS -9008 ASTM D 790 FMVSS 302 INTERNATIONAL TMS-9544 CFR Title 29, Part 1910 INTERNATIONAL CEMS G-5 ASTM D 638 INTERNATIONAL CEMS GT-31 4.0 REQUIREMENTS 4.1 Basic Pro
7、perties Material purchased to this specification shall meet the basic property requirements selected from the table. Properties shall be specified by cell limits, such as 3-2-5-0-3-1. Each digit refers to a cell limit in the table, and represents a property as indicated in the properties table 4.1.2
8、. This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corporation. AUGUST 2005 Page 1 of 5
9、 NUMBER: TMS-7039 TITLE: Polyethylene, Unfilled, Molded REVISION: F 4.1.1 Basic Properties - Example 3 - 2 - 5 - 0 - 3 - 1 Tensile Yield Strength 10.3 MPa (1 500 psi), minimum Izod Impact Strength (Notched) 0.03 J/mm (0.6 ftlb/in) of Notch, minimum Deflection Temperature at 1820 kPa (264 psi), minim
10、um 38C (100F) Flexural Modulus Unspecified Specific Gravity 0.941 to 0.965 Environmental Stress Cracking Resistance Less Than 1 Hour 4.2 Suffixes Suffix letters indicate material or molded part property requirements in addition to those shown in the table. The following suffixes shall be used to ind
11、icate additional required properties: 4.2.1 A -Types of Polyethylene Polymers A1Homopolymers - to be used in parts that are not highly stressed. A2Copolymers - to be used in parts that will be under high stresses. A3Crosslinkable compounds - to be used in areas of high heat and stress concentrations
12、. 4.2.2 B - Melt Index Requirements shall be determined by ASTM D-1238 as follows: B10.3 maximum for parts to be blow molded or vacuum formed. B20.6 maximum for parts to be blow molded or vacuum formed. B32.0 maximum for parts to be blow molded, vacuum formed, or injection molded. B45.0 maximum for
13、parts to be injection or rotational molded. B50.9 maximum for parts to be injection or rotational molded. B6Melt index shall be specified on drawing. 4.2.3 Accelerated Weathering - Per CEMS GT-31 This document is restricted and may not be sent outside International Truck and Engine Corporation or re
14、produced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corporation. AUGUST 2005 Page 2 of 5 NUMBER: TMS-7039 TITLE: Polyethylene, Unfilled, Molded REVISION: F C1: Interior parts which are exposed t
15、o sunlight under glass shall be tested per Method A for a minimum of 1200 kj. C2: Exterior parts shall be tested per Method B for a minimum of 3600 kj. 4.2.3.1 Required shall have no visible color change greater than E of 3. 4.2.4 D - Color Requirements D1 Pigmented part color shall be specified on
16、the drawing per designation system in CEMS G-5. The pigment shall be evenly dispersed to insure uniform coloring throughout the part. D2 Paint color shall be specified on the drawing per designation system in CEMS G-5. The painted part shall meet requirements of TMS-9008. 4.2.5 E - Surface Finish Re
17、quirements shall be noted as follows, and shall compare to finishes found in the SPI-SPE mold finish comparison kit (D-M-E Corporation). E1 No. 1 - 8000 Grit (#3 Micron Range) E2 No. 2 - 1200 Grit (#15 Micron Range) E3 No. 3 - 320 Emery Cloth E4 No. 4 - 280 Stone E5 No. 5 - 240 Dry blast, 127 mm at
18、690 kPa (5 in distance at 100 psi) E6 No. 6 - 24 Grit dry blast, 76 mm at 690 kPa (3 in distance at 100 psi) 4.2.6 F -Flame Resistant Material and parts supplied to this specification shall conform to and be certified by the supplier to meet the requirements of the latest issue of the Federal Motor
19、Vehicle Safety Standard No. 302 - Flammability of Interior Materials and shall meet the requirements of TMS-9544. 4.2.7 Z -Special Requirements Special requirements shall be noted on the drawing. 5.0 QUALITY All parts shall maintain the same pattern, color, and finish as approved prototype parts in
20、the Industrial Design Department, TDTC. No voids in the material, surface defects, flash, or flow patterns are permissible. No change in manufacturing process or plastic formulation shall be made without approval of the proper engineering authority. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Suppli
21、er Requirements All suppliers to INTERNATIONAL Truck and Engine are required to be registered to QS-9000 Quality System Requirements. INTERNATIONAL will also accept ISO 9000 or TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentati
22、on and approval requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates to the INTERNATIONAL Corporate Buyer upon request. This document is restricted and may not be sent outside International Truck and Engine Corpor
23、ation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corporation. AUGUST 2005 Page 3 of 5 NUMBER: TMS-7039 TITLE: REVISION: F Polyethylene, Unfilled, Molded 6.2 Approval Parts supplied
24、 against contracts or purchase orders citing this specification shall be equivalent in all respects to those samples which were approved by the purchaser. No changes in formulation or processing practices are permitted without approval. In the event that changes in material, properties, processing p
25、ractices, construction, color, or labeling of the product are required, the supplier shall notify Materials Engineering at TDTC and Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or amen
26、ded or updated Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submitted with the request for change. 6.3 Process Control The supplier shall either perform and report results of tests on specific lots of parts produced or provide statistical evidence of the
27、lot having been produced in a state of statistical control and with a process capable of providing all required properties. The part supplier and the plant metallurgist and/or the quality control manager of the using plant may determine testing and reporting requirements on specific products. 7.0 SH
28、IPPING, PACKING AND IDENTIFICATION Loading, packing, and identification shall be in accordance with Manufacturing Std. D-13. 8.0 DESIGNATION ON DRAWINGS The material shall be designated in the same manner as the following example: 3-2-5-0-3-1, A2, B2, D2 TMS-7039 D2 - Color shall be NAV 2284 Red The
29、 six digits preceding the TMS number refer to cell limits in the table. The first digit always refers to the tensile yield strength, here 10.3 MPa (1500 psi). The second digit always refers to Izod impact strength, here at 0.03 J/mm (0.6 ftlb/in) of notch. The third digit refers to the deflection te
30、mperature at 1820 kPa (264 psi), here 38C (100F). The fourth digit refers to the flexural modulus, unspecified here. The fifth digit refers to the specific gravity, here 0.941 to 0.965. The last digit refers to the environmental stress cracking resistance; in this example less than 1 hour. The suffi
31、x letters in this example require that the material be a polyethylene copolymer (A2) and have a melt index of 0.6 (B2), maximum. It must be painted a specific red color, as required in the drawing (D2). 9.0 TECHNICAL INFORMATION For further information related to the technical content of this specif
32、ication, contact: Materials Engineering and Technology Dept. Truck Development and Technology Center (TDTC) 2911 Meyer Road Fort Wayne, IN 46803 E-mail: MaterialsEngineeringNav-I This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without
33、permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corporation. AUGUST 2005 Page 4 of 5 NUMBER: TMS-7039 TITLE: Polyethylene, Unfilled, Molded REVISION: F PROPERTIES TABLE Properties ASTM Test Method Cell Limit
34、s 0 1 2 3 4 5 6 7 8 9 Tensile Yield Strength, D-638 Min MPa 6.2 8.3 10.3 12.4 15.2 19.3 23.4 27.6 33.0 psi 900 1200 1500 1800 2200 2800 3400 4000 4800Izod Impact Strength D-256 At 23 C (75 F), Min. J/mm of Notch 0.02 0.03 0.05 0.16 0.26 0.53 0.80 * - ftlb/In of Notch U 0.3 0.6 1.0 3.0 5.0 10.0 15.0
35、* - N Deflection Temperature D-648 S P At 1820 kPa (264 Psi), E C Min. I Degrees C F 27 29 32 35 38 41 49 60 71 Degrees F I 80 85 90 95 100 105 120 140 160 E Flexural Modulus, D-790 D Min. MPa 206 344 483 620 758 895 1030 1300 1480 psi 30 50 70 90 110 130 150 190 215 Specific Gravity D-792 0.910- 0.
36、926- 0.941- - - - - - - 0.925 0.940 0.965 Environmental Stress D-1693 Cracking Resistance, Min, Hours 1 1 2 5 10 30 50 100 500 * No Break. This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corporation. AUGUST 2005 Page 5 of 5
