1、NAVISTAR INTERNATIONAL TRANSPORTATION CORP. TRUCK MATERIAL SPECIFICATION NUMBER: TMS-9012TITLE: IMC Properties, For SMC Parts REVISION: C WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering DATE ISSUED: FEBRUARY 2005 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURREN
2、T 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 of
3、regulatory limits prior to use. Change Notice: Removed gloss requirement in Table 1. Reference: 1.0 APPLICATION This specification covers the in-mold coating (IMC) process and requirements for compression molded SMC parts that subsequently require finish paint to INTERNATIONAL specifications. Typica
4、l parts include hood and fender assemblies and similar exterior applications. 2.0 SCOPE This specification covers surface appearance and dry film properties of in-mold coating (IMC), inspection, quality control and source approval for coated SMC parts prior to shipment to INTERNATIONAL. It also incl
5、udes repair of IMC surfaces and handling of IMC parts. 3.0 REFERENCE DOCUMENTS Unless otherwise specified the latest issue of all referenced standards shall apply. The following Specifications, Standards, and Regulations are referenced in this specification. Quality System Standard QS-9000 (ISO 9000
6、 or TS-16949) INTERNATIONAL TMS-9005 INTERNATIONAL IQR Quality Standard INTERNATIONAL CEMS D-22 CFR 29, Part 1910 INTERNATIONAL Eng. Design Std. A-16 INTERNATIONAL Manufacturing Std. D-13 INTERNATIONAL CEMS GT-7E INTERNATIONAL CEMS GT-5A INTERNATIONAL CEMS GT-14A INTERNATIONAL CEMS GT-5B INTERNATION
7、AL CEMS GT-18 INTERNATIONAL CEMS GT-5C INTERNATIONAL CEMS GT-28 INTERNATIONAL CEMS GT-4D ASTM D-4138 INTERNATIONAL CEMS GT-6B SAE J-400 4.0 GENERAL REQUIREMENTS This specification is not intended to limit or specify the exact process and materials to be used in providing SMC parts ready for topcoati
8、ng at INTERNATIONAL paint operations. The control of the IMC quality and its application shall be the responsibility of the SMC part supplier. All IMC parts supplied, must be compatible with the finish paint operations employed by the using INTERNATIONAL facility. This document is restricted and may
9、 not be sent outside Navistar International Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corp. FEBRUARY 2005 Page 1 of 5 Copyright International Truck and Engine Corporat
10、ion Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: TMS-9012 TITLE: IMC Properties, For SMC Parts REVISION: B 4.1 Priming of SMC parts that use IMC requires special treatment. In cases where coverage of the part is e
11、ssentially complete, the use of only a spot primer may be satisfactory or no additional primer application may be needed (i.e. topcoat direct to IMC). In cases where coverage of the part with IMC is less than complete, the use of a sealer-primer will be required to seal the substrate. If the incompl
12、etely covered area is less than 2 inches in diameter, no priming may be necessary if the area does not show through after topcoat and does not promote surface defects, e.g. pitting and porosity. If the incompletely covered area is greater than 2 inches in diameter, or more than 3 instances of bare s
13、ubstrate occur, the use of a primer-sealer must be employed. 4.2 It is recognized that certain defects, such as porosity, may not be detectable in an IMC part until after topcoat application. Isolated instances of porosity, as defined in Table 1, shall not be cause for rejection. Chronic cases of po
14、rosity requiring significant rework shall be cause for rejection and the responsibility of the vendor to correct. It is the responsibility of the supplier to ensure that all IMC parts are completely free of visible porosity and other defects, which would cause significant rework, prior to shipping t
15、he using International facility. . This will require close cooperation between the supplier, Materials Engineering, and the paint facility. 4.3 Performance Requirements 4.3.1 Appearance Unless otherwise stated, all parts with IMC designated application shall be considered Zone I appearance parts (Se
16、e Table 1 Zone I Requirements). This means the part is a primary, exterior, glamour surface, which requires the highest cosmetic standards and fewest defects. IMC coverage should be 99%. Areas with bare substrate shall be repaired in accordance with MS 9005 and/or section 4.1 above. T4.3.2 Dry Film
17、Requirements Dry film properties are given in Table II. The requirements apply to the IMC as processed in the old after cure and part cool down. m4.3.3 Bake Temperatures Parts requiring primer application shall be oven-cured within the minimum and maximum schedules for time and temperature prescribe
18、d by the primer supplier. 4.3.4 Inspection Parts shall be inspected for appearance requirements at a distance of 2 feet under a fluorescent light. Samples illustrating acceptable and unacceptable surface conditions shall be displayed in the inspection area. 4.4 Repair Procedure 4.4.1 Priming Of Surf
19、ace Repairs Sand-through of the IMC or incompletely covered areas greater than 2 inches in diameter must be primed and baked. Spot priming of these areas is acceptable if there is no show-through of primer boundaries and the surface is adequately sealed. If show-through occurs or the surface is not
20、sufficiently sealed, the entire part must be primed and baked. Spot priming without bake is acceptable on areas less than 2 inches in diameter or no priming may be necessary if the This document is restricted and may not be sent outside Navistar International Corporation or reproduced without permis
21、sion from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corp. FEBRUARY 2005 Page 2 of 5 Copyright International Truck and Engine Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networ
22、king permitted without license from IHS-,-,-NUMBER: TMS-9012 TITLE: IMC Properties, For SMC Parts REVISION: B transition area between the substrate and IMC cannot be read after topcoat and no surface defects occur. 4.4.2 Surface repairs that do not expose the substrate and are less than 2 inches in
23、diameter require only the application of an air-dry primer approved by INTERNATIONAL Technical Development and Technology Center. Primer may not be required if the repair does not show through the topcoat and does not promote surface defects. If the total area of these small repairs exceeds 5% of th
24、e part surface area, the part must be primed and baked. 5.0 QUALITY Suppliers must conform to the requirements of the INTERNATIONAL Quality Standard which includes conformance to the International QS-9000 (ISO 9000) Quality System Standard. A mutually acceptable Quality Control Plan as described the
25、rein is required for source approval to the requirements of this specification. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier Requirements All suppliers to INTERNATIONAL Truck and Engine are required to be registered to QS-9000 Quality System Requirements. INTERNATIONAL will also accept ISO 9
26、000 or TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and approval requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates to the INTERNA
27、TIONAL Corporate Buyer upon request. 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 processing practices are permitted without approval.
28、 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 at INTERNATIONAL TDTC and Purchasing and Logistics of the proposed change(s). Test data indicating conformance to al
29、l 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 shall either perform and report results of tests on spec
30、ific 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 quality control manager of the using INTERNATIONAL pl
31、ant may determine testing and reporting requirements on specific products. This document is restricted and may not be sent outside Navistar International Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by In
32、ternational Truck and Engine Corp. FEBRUARY 2005 Page 3 of 5 Copyright International Truck and Engine Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: TMS-9012 TITLE: IMC Properties, For SMC Parts REVISION
33、: B 7.0 SHIPPING, PACKING AND IDENTIFICATION Shipping, packing and identification shall be in accordance with INTERNATIONAL Manufacturing Standard D-13. Parts shall be packaged and shipped in such a manner so as to protect the surface finish in transit. 8.0 DESIGNATION ON DRAWINGS Example: IMC coate
34、d part per TMS-9012. 9.0 TECHNICAL INFORMATION For further information related to the technical content of this specification, contact: Materials Engineering and Technology Dept. Technical Development and Technology Center (TDTC) 2911 Meyer Road Fort Wayne, IN 46803 E-mail: MaterialsEngineeringNav-I
35、 TABLE 1 APPEARANCE REQUIREMENTS Zone I Requirement Craters greater than 1 mm diameter max. per square foot/per unit 1/2 Contamination (e.g. flash), max. number per square foot 0 Fine craters less than 1mm diameter, per square foot/ per unit 3/2 Streaking/fingering, instances 0 Scratches discernible
36、 by touch None This document is restricted and may not be sent outside Navistar International Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corp. FEBRUARY 2005 Page 4 of 5
37、 Copyright International Truck and Engine Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: TMS-9012 TITLE: IMC Properties, For SMC Parts REVISION: B TABLE 2 DRY FILM PROPERTIES FILM PROPERTY REQUIREMENT Te
38、st Method Hardness, min. F GT-4D Adhesion, % min. 90 GT-5A Xylene Rub Pass GT-14A Accelerated Adhesion, % min. 90 (3B) GT-5C Intercoat Adhesion, % min. 90 GT-5B 500 hours Humidity % adhesion min. 90 GT-7E blisters NoneGravelometer Test Requirement 2A per GT-28 SAE J-400 Distilled Water Immersion No
39、blisters or color change GT-7G Conductivity, min. 130 GT-18 Film Thickness, mils. min/max, avg. 1.0/5.0 ASTM D-4138 This document is restricted and may not be sent outside Navistar International Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2005 by International Truck and Engine Corp. FEBRUARY 2005 Page 5 of 5 Copyright International Truck and Engine Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
