1、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. NOVEMBER 2016 Page 1 of 5 NAVISTAR, INC. Material, Parts, and Process Specificati
2、ons (MPAPS) NUMBER: MPAPS G-9015 Former Designation: TMS-9015 TITLE: Painted Metal Parts for High-Heat Resistance CURRENT REV No.: 1611 DATE: November 2016 WRITTEN/EDITED BY: S. Brailey APPROVED BY: R. Goluch SUPERSEDES: Rev. 1010 October 2010 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CUR
3、RENT 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. 1.0 APPLICATION This specification covers performance and quality requirements for paint finish on metallic components exposed to high operating temperatures up to and including worst-case exhaust aftertreatment regeneration conditions (650C /1200F). Specific examp
5、les include painted, fabricated steel stanchions, brackets and mount structures which may or may not be designed to carry exhaust gas, that act as support structures for exhaust pipes and aftertreatment devices, ferrous castings with cosmetic requirements that come into contact with exhaust pipes an
6、d/or aftertreatment components (excluding engine manifolds), and welds on aluminized steel and aluminized stainless exhaust pipes. 2.0 SCOPE This specification covers finish classification, pre-paint preparation, dry film properties, test methods, heat and corrosion resistance evaluation, quality re
7、quirements, source approval, designation on drawings, and shipping requirements. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification. 3.0 REFERENCE DOCUMENTS Unl
8、ess 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 ISO 9001 or TS-16949 NAVISTAR MPAPS B-50 MIL-P-14105E CFR Title 29, Part 1910 NAVISTAR MPAPS GT-Pa
9、int SSPC -VIS-2 NAVISTAR Supplier Packing and Shipping Std. D-13 NAVISTAR MPAPS GT-31 NAVISTAR Engineering Design Std A-16 ASTM B117 4.0 REQUIREMENTS 4.1 Pre-paint Preparation All surfaces to be painted, including weld metal and surrounding heat-affected zones (HAZ), shall be free of dirt, oil, grea
10、se, rust or other contaminants which may inhibit proper adherence of the high temperature paint. Whenever possible, surfaces to be painted should exhibit “water-break free” characteristics, indicating a clean surface free of oil and other contaminates. An effective post-weld cleaning procedure is to
11、 be utilized and should include either an abrasive (e.g., bead blasting or needle NUMBER: MPAPS G-9015 TITLE: Painted Metal Parts for High-Heat Resistance REVISION: 1611 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical S
12、tandards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. NOVEMBER 2016 Page 2 of 5 descaler) or chemical acid etch of the welded areas prior to painting. Additional care should be taken if the welded material is stainless steel to assure that any mechanical means of po
13、st-weld cleanup does not contaminate the weld and surrounding areas with iron or other elements which could negatively affect paint adhesion and/or underlying base metal corrosion resistance. The requirement for as-painted parts and assemblies, their weld metal and HAZ is a uniform, continuous paint
14、 film with no cracking, peeling, areas of major color change, or other major defects. 4.2 Paint Requirements 4.2.1 Dry Film Properties 4.2.1.1 Thickness Painted parts and assemblies supplied to this specification must maintain a minimum dry film paint thickness per the paint manufacturers recommenda
15、tion, unless otherwise noted and approved by NAVISTAR Materials Engineering. 4.2.1.2 Color Paint color will typically be black, unless otherwise specified on the engineering drawing. 4.2.1.3 South Florida Exposure Paint must pass a 6-month South Florida Exposure test per the latest version of MPAPS
16、GT-Paint Method 7F. 4.2.1.4 Water Resistance Immerse as-painted parts in distilled water at 25 5C for 18 hours. At the end of the immersion time, remove the panel from the distilled water and examine the paint film. Parts shall show no wrinkling, blistering, softening, or loss of adhesion. Disregard
17、 any change in color. 4.2.1.5 Accelerated Weathering Accelerated weathering testing per the latest version of MPAPS GT-31 (Method B for 600 kJ) will be carried out and color change evaluated. After testing, a E 4 must be obtained. 4.2.1.6 Humidity As-painted parts must pass 250-hours humidity testin
18、g per the latest version of MPAPS GT-Paint, method 7E (commencing on the fourth step). 4.2.1.7 Corrosion Resistance Painted parts and assemblies supplied to this specification must pass initial as-painted corrosion resistance requirements. Expose to salt spray for 100 hours in accordance with ASTM B
19、117. Panels must pass with a Rust Grade 7 (S, G, and/or P types) or better per SSPC-VIS-2. 4.3 High Temperature Resistance 4.3.1 Heat Exposure Cycle Six coated test panels shall be used in this test: four for further testing and one for use as a comparative standard. Three as-received painted parts
20、and assemblies will be subjected to a heat exposure cycle consisting of heating for 8 hours at 400F, cooling for 16 hours at room temperature; heating for 8 hours at 800F, cooling for 16 hours at room temperature. Two as-received part/assembly will be subjected to the above heat exposure cycle with
21、the addition of heating for 8 hours at 1200F, and cooling for 16 hours. Examine the panels at the end of each temperature variation. There shall be no cracking, flaking, or chipping. 4.3.2 Salt Spray Subject two 800F heat-exposed panel to 100 hours of salt spray in accordance with ASTM B117. At the
22、conclusion of 100 hours, all major surfaces (excluding tube ends, interior assembly surfaces, and sheared or cut edges) shall exhibit a Rust Grade 6 (S, G, and/or P types) or better per SSPC-VIS-2. NUMBER: MPAPS G-9015 TITLE: Painted Metal Parts for High-Heat Resistance REVISION: 1611 This document
23、is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. NOVEMBER 2016 Page 3 of 5 Care should be taken during evaluation to disregard rust bleed-down fr
24、om both edges and corrosion sites. Assessment should focus strictly on the size and density of actual corrosion sites. In addition to corrosion evaluation, there should be no evidence of paint delamination, film breakdown, blistering, porosity, or objectionable color change of the part in high heat
25、exposure areas after salt-fog testing. 4.3.3 Quenching Cycle Subject one 1200F heat-exposed panel to five quenching cycles consisting of heating the panel to 650F and plunging it immediately into fresh tap water at a temperature of 70 10F. Examine the paint film after each quenching cycle. The paint
26、 film shall show no cracking, flaking, or chipping. 5.0 QUALITY 5.1 As-Received Appearance 5.1.1 As-received painted parts and assemblies shall be free of uncoated areas (such as around welds, on edges, in bolt holes, and in crevices), excessive painted-over weld spatter, blisters, cracks and/or oth
27、er paint-related defects. Painted surfaces shall be uniform in color and gloss and maintain a roughly flat or slightly glossy black (or other approved color) appearance. Visible surfaces will be free of gouges, scratches, indentations and/or other major surface defects which may negatively affect ap
28、pearance or function. 5.1.2 Painted stanchion assemblies supplied to this specification shall be delivered in a clean and dry condition, without damage to the painted exterior surfaces and without uncoated areas. There should be no visible stencil markings on exterior visible surfaces. All inlet and
29、 outlet tubes shall be protected from damage during shipping and handling and will be adequately sealed to protect against corrosion of the unpainted internal pipe surfaces. This should result in no significant corrosion scale being present on interior unpainted surfaces at the time of delivery. 6.0
30、 QUALIFICATION Engineering qualification of sources is required in advance of production shipments. Samples shall be accompanied by test data certifying that all requirements of the specification have been met. 6.1 Quality Control Plan A Quality Control Plan for products supplied to the requirements
31、 of this specification will be established by mutual agreement between NAVISTAR and the supplier. Unless specific exception is noted, the following characteristics, where applicable*, shall be included in the plan as features for management by statistical process control.* * Other characteristics fo
32、r inclusion in the control plan may be specified on the engineering drawing and/or purchase order. * See NAVISTAR Engineering Design Standard A-16 Paint Film Thickness NUMBER: MPAPS G-9015 TITLE: Painted Metal Parts for High-Heat Resistance REVISION: 1611 This document is restricted and may not be s
33、ent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. NOVEMBER 2016 Page 4 of 5 7.0 SOURCE APPROVAL AND QUALITY CONTROL 7.1 Supplier Requirements All suppliers to NAVISTAR are requ
34、ired to be registered to ISO 9001 Quality System Requirements. NAVISTAR will also accept 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 accred
35、ited registrar and must furnish copies of registration certificates to their Corporate Buyer upon request. 7.2 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
36、in formulation or processing 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 NAVISTAR Materials Engineering and Purchasing and Supplier Developme
37、nt of the proposed 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. 7.3 Process Control T
38、he supplier shall either, perform and report results of tests on specific lots of parts produced using ISO 9001 or TS-16949 guidelines, 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. T
39、he part supplier and the quality control manager of the using NAVISTAR plant may determine testing and reporting requirements on specific products. 8.0 SHIPPING AND HANDLING Shipping and identification shall be in accordance with NAVISTAR Supplier Packing and Shipping Standard D-13. Parts shall be p
40、ackaged so as to avoid any damage in shipment detrimental to the appearance of the part. 9.0 DESIGNATION ON DRAWINGS Example of note to use on drawings: Finish per MPAPS G-9015 The requirements of this specification supersede and replace the requirements of TMS 9015 Types I and II. 10.0 TECHNICAL IN
41、FORMATION For further information related to the technical content of this specification, contact: Suppliers may purchase controlled copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS G
42、lobal Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ NUMBER: MPAPS G-9015 TITLE: Painted Metal Parts for High-Heat Resistance REVISION: 1611 This document is restricted and may not be sent outside Navistar, Inc. or reproduced withou
43、t permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. NOVEMBER 2016 Page 5 of 5 REVISION HISTORY Revision Level Change Approved by Date Approved 1611 Converted to MPAPs; Removed types and revised heat exposure cycles and testing requirements. R. Goluch 11/10/2016
