1、 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. Ge32001 by International Truck and Engine Corporation. AUGUST 2001 Page 1 of
2、 3 INTERNATIONAL TRUCK AND ENGINE CORPORATION TMS (TRUCK MATERIAL SPECIFICATION) NUMBER: TMS-6511 TITLE: Foam Recirculation Seals REVISION: A-1 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering DATE ISSUED: August 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CU
3、RRENT 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 applicability
4、 of regulatory limits prior to use. Change Notice: Reformatted and Editorial Changes Reference: File 30-1 Keywords: Urethane Foam; Sealer 1.0 APPLICATION This specification covers a cellular polyurethane foam which may be slit or cut for use as a radiator recirculation seal. The surface of the foam
5、is coated with a spray applied elastomeric coating which seals the foam from water, dust, etc., and the finished part may be bonded in place. 2.0 SCOPE This specification covers the general requirements, property and performance requirements, and source approval and quality control. 3.0 REFERENCE DO
6、CUMENTS 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 9001) ASTM D 3574 INTERNATIONAL IQR Quality Standard ASTM D 1146 INTERNATIO
7、NAL Manufacturing Standard D-13 ASTM D 2247 CFR Title 29, Part 1910 ASTM D 1149 4.0 GENERAL REQUIREMENTS 4.1 Polyurethane Foam: The material shall have a homogeneous cell structure and be free of defects and voids which may have a deleterious effect on performance. Unless otherwise specified on the
8、engineering drawing, color shall be black. 4.2 Elastomer Coating: Unless otherwise specified on the engineering drawing, the coating color shall be black. The coating shall be uniformly applied, with the exception of bonding surfaces shown on the engineering drawing, and shall not be tacky on the fi
9、nished part. Bonding surfaces must be clearly identified on the engineering drawing and must be free of coating. 4.3 Property And Performance Requirements All tests shall be performed in accordance with procedures described in ASTM D3574 unless otherwise specified. NUMBER: TMS-6511 TITLE: Foam Recir
10、culation SealsREVISION: A-1 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. Ge32001 by International Truck and Engine Corpora
11、tion. AUGUST 2001 Page 2 of 3 4.3.1 Foam Only 4.3.1.1 Density: 29-32 kg/m (1.8-2.0 lb/ft) 4.3.1.2 Tensile Strength: 100 kPa (15 psi) minimum 4.3.1.3 Elongation: 180% minimum 4.3.1.4 Tear Resistance: 350 N/m (2 lbf/in) minimum 4.3.1.5 Compression Force 4.3.1.5.1 Deflection - 25% compression: 31 kPa (
12、4.5 psi) minimum 4.3.1.5.2 Compression Set - after 70 hours 50% compression. at 90C (195F) Maximum of 50% of the original deflection. 4.3.1.6 Dry Heat Aging - after 22 hours at 140C (285F) the following test values shall be obtained: Tensile Strength = 80% of original value minimum Elongation = 80%
13、of original value minimum Tear Resistance = 80% of original value minimum 4.3.1.7 Steam Autoclave Aging - ASTM D3574 Procedure J2 Tensile strength - 80% or original value minimum Elongation - 80% of original value minimum Tear Resistance - 80% of original value minimum 4.3.2 Coated Foam 4.3.2.1 Bloc
14、king 4.3.2.1.1 Method - ASTM D1146 Place coated sample of foam surface against a steel panel which has been painted as per TMS-9009, Class II and age in a dry air circulating oven at 100C (210F) for 24 hours. Remove sample from oven and cool to room temperature. 4.3.2.1.2 Required First Degree Block
15、ing or Free 4.3.2.2 Humidity 4.3.2.2.1 Method - ASTM D2247 Expose sample to 168 hours of condensing humidity (100% R.H.) at 38C (100F). 4.3.2.2.2 Required There shall be no softening, cracking, or loss of adhesion. 4.3.2.3 Ozone 4.3.2.3.1 Method - ASTM D1149 Expose a looped sample (specimen B) for 7
16、0 hours at 40C (105F) and at 50 pphm ozone. 4.3.2.3.2 Required No visible cracking when observed at 7X magnification. NUMBER: TMS-6511 TITLE: Foam Recirculation SealsREVISION: A-1 This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without
17、 permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. Ge32001 by International Truck and Engine Corporation. AUGUST 2001 Page 3 of 3 5.0 QUALITY All product supplied shall be clean and free from dirt, oils, sharp edges, or defects harmful to product p
18、erformance. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier Requirements Suppliers must conform to the requirements of the International IQR Quality Standard which includes conformance to the QS-9000 (ISO 9001) Quality System Standard. A mutually acceptable Quality Control Plan as described the
19、rein is required for source approval to the requirements of this specification. 6.2 Approval Parts supplied 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 processi
20、ng practices are permitted without approval. In the event that changes in material, properties, processing practices, construction, color, or labeling of the product are required, the supplier shall notify Materials Engineering, TDTC and International Purchasing and Supplier Development of the propo
21、sed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or amended 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 sha
22、ll either perform and report results of tests on specific lots of parts produced or provide statistical evidence of the 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
23、quality control manager of the using International plant may determine testing and reporting requirements on specific products. 7.0 SHIPPING, PACKING AND IDENTIFICATION Loading, packing and identification shall be in accordance with International Manufacturing Std. D-13. 8.0 DESIGNATION ON DRAWINGS Recirculation Seal as per TMS-6511 9.0 APPROVED SOURCES Merryweather Foam, Inc. Carroll George, Inc.
