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. 2017 by Navistar, Inc. FEBRUARY 2017 Page 1 of 7 NAVISTAR, INC. Material, Parts, and Process Specificatio
2、ns (MPAPS) NUMBER: MPAPS L-6044 Former Designation: TMS-6044 TITLE: Rear Hood Mounting CURRENT REV No.: 1702 DATE: Feb. 2017 WRITTEN/EDITED BY: G. Svidron/ W. Cook APPROVED BY: R. Goluch SUPERSEDES: Rev. A June 2007 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specifica
3、tion 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 regulatory limits prior t
4、o use. 1.0 APPLICATION. This specification covers elastomer rear hood mounts. These types of parts can be produced using various processes as may be dictated by the particular application and/or design. Type I Urethane hood support either cast or molded. Type II Urethane hood support, softer than Ty
5、pe I Type III Injection Molded EPDM hood support with an internal lubricant. 2.0 SCOPE This specification covers the general requirements, property and performance requirements and quality. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this
6、 specification must comply with the requirements of the MPAPS B-50 specification. 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
7、 Standard ISO-9001 or TS-16949 ASTM D 5592 ASTM D 2137 NAVISTAR Engineering Design Std. A-16 ASTM D 412 ASTM D 2240 CFR 29, Part 1910 ASTM D 624 ASTM D 395 NAVISTAR Supplier Packing and Shipping Std. D-13 ASTM D 925 ASTM D 325 NAVISTAR MPAPS P-9543 ASTM D 1894 ASTM D 2228 NAVISTAR MPAPS G-9009 ASTM
8、D 925 ASTM D 2000 NAVISTAR MPAPS B-50 ASTM D 573 ASTM D 865 NAVISTAR MPAPS A-6, Part I ASTM B 117 4.0 GENERAL REQUIREMENTS 4.1 Color Shall be black unless otherwise specified on the engineering print. 4.2 Finish Parts shall be free of pin-holes, blow-holes, bubbles, mold flash and present a smooth e
9、xterior surface. Painted steel shall meet requirements of MPAPS G-9009 Class IIA. NUMBER: MPAPS L-6044 TITLE: Rear Hood Mounts REVISION: 1702 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are requ
10、ired to assume all patent liability. 2017 by Navistar, Inc. FEBRUARY 2017 Page 2 of 7 4.3 Steel Shall meet requirements of MPAPS A-6, Part I, Grade 1 or 2, unless otherwise specified. 4.4 Material Properties Elastomers Test samples should be taken from finished parts. Samples from finished parts are
11、 preferred even when the referenced test method is for slab samples. Values shown in Table 1 are minimum values unless shown as a range. Requirements shown in the tables are based upon the following methods: 4.4.1 Hardness: ASTM D 2240 Type A or D. All values are 3 points from specified value. 4.4.2
12、 Tensile Strength: ASTM D 412, Die C. Reported as MPa. 4.4.3 Elongation: ASTM D 412, Die C. Reported as % elongation. 4.4.4 Tear Resistance: ASTM D 624, Die B. Reported as kN/m. 4.4.5 Compression Set: ASTM D 395, Method B, 22 hours. Reported as maximum % set. 4.4.6 Low Temperature Brittleness: ASTM
13、D 2137, Method A, Non-Brittle at -40C (-40F) unless otherwise designated. 4.4.7 Ozone Resistance: ASTM D 1171, Method B, Expose samples to 70 hours of 100 mPa (0.0000145 psi) ozone partial pressure at 38C (100F). 4.4.8 Adhesion: ASTM D 429, Method A. This test applies to any bonded assembly. All fra
14、cture modes are to be cohesive fractures or fracture through the substrate. The Qualification Test Report will include the fracture loads reported as Mpa values, tested at standard lab conditions. Any adhesive failure modes shall be noted and explained in the report 4.4.9 Abrasion Resistance: Pico A
15、brasion per ASTM D 2228. 4.5 kg load, 80 revolutions at 1 Hz. Calculate and report standard and Pico index. 4.4.10 Staining Resistance: This requirement is temporarily ASTM D 925, Method B, to be consistent with ASTM D 2000 classifications. 4.4.11 Coefficient of Friction: ASTM D 1894 Perform against
16、 mating material (contact Materials Engineering for assistance). Report static and kinetic results. 4.5 Aged Properties Test samples shall be taken from finish parts whenever possible. 4.5.1 Heat Resistance: ASTM D 573 or ASTM D 865, age samples for 168 hours at 70C. 4.5.2 Salt Spray/Adhesion ASTM B
17、 117 salt spray test for 100 hours. Test per 4.4.8 Adhesion. 4.5.3 Heat Aged/Adhesion Age test samples for the time, temperature and method specified in 4.5.1 Heat Resistance. Perform test as per 4.4.8 Adhesion. 4.6 Property And Performance Requirements The need for these tests, and details of the s
18、pecific tests to be performed, will be indicated on the Engineering drawing for the part or assembly. Additional details of the testing may be included in the Engineering Validation Plan for these parts. Unless otherwise specified all tests shall be performed on finished parts. Test fixtures, replic
19、ating, as closely possible, the production usage and intent shall be built. Details of the test fixtures, including engineering drawings and pictures shall be included in the suppliers qualification report (see Section 5.1). NUMBER: MPAPS L-6044 TITLE: Rear Hood Mounts REVISION: 1702 This document i
20、s 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. 2017 by Navistar, Inc. FEBRUARY 2017 Page 3 of 7 4.6.1 Rub Test Test samples shall be fixtured so that the rubber and th
21、e bracket have a 2mm (0.078in) interference fit. The part shall be tested at a rate of 10Hz for 1,000,000 cycles. Each specimen shall be weighed before and after testing. 4.6.2 Knock Test Test samples shall be fixtured so that the rubber is cycled from side to side at a rate of 10Hz contacting the b
22、racket during each cycle. The part shall be tested for a total of 1,000,000 cycles. 4.6.3 Static Compression Deflection: ASTM D 575 Test, Method A, except that a finished part shall be used. The direction and amount of deflection shall be indicated on the engineering drawing or taken from production
23、 installation. 4.6.4 Dynamic Spring Rate and Damping; ASTM D 5992. The engineering drawing will indicate: 4.6.4.1 The set-up procedure or test configuration including the part numbers of other components required to complete the test set-up configuration. 4.6.4.2 Direction of test. 4.6.4.3 Preload.
24、4.6.4.4 Amplitude. 4.6.4.5 Frequency. 4.6.4.6 Temperature of test. 4.6.4.7 Spring rate required with tolerance (if a tolerance is not noted it shall be assumed to be 5%). 4.6.4.8 Damping required with tolerance (if a tolerance is not noted it shall be assumed to be 5%). 4.6.5 Dynamic Fatigue: ASTM D
25、 5992 except as required for durability cycle. The engineering print shall indicate the following: 4.6.5.1 The set-up procedure or test configuration including the part numbers of other components required to complete the test set-up configuration. 4.6.5.2 Direction of test. 4.6.5.3 Preload(1). 4.6.
26、5.4 Amplitude(1). 4.6.5.5 Frequency(1). 4.6.5.6 Duration of test(1). 4.6.5.7 Temperature of test. 4.6.5.8 Spring rate required with failure tolerance(2) (tolerance is 10% if not otherwise indicated). 4.6.5.9 Damping required with failure tolerance(2) (tolerance is 10% if not otherwise indicated). (1
27、). In many cases this procedure may be described in a block cycle requiring multiple/different inputs. In such case a separate reference on the Engineering drawing should be made to the Engineering validation test plan and the required test profile fully described in that document. (2) Exceeding the
28、 failure tolerance is the criteria used to determine component failure. 5.0 QUALITY All parts supplied to this specification shall be uniform in appearance and free from pinholes, blowholes, bubbles, and mold flash. No change in the formulation shall be made by the supplier without prior approval of
29、 Materials Engineering, Truck Development and Technology Center. NUMBER: MPAPS L-6044 TITLE: Rear Hood Mounts REVISION: 1702 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 al
30、l patent liability. 2017 by Navistar, Inc. FEBRUARY 2017 Page 4 of 7 5.1 Qualification Materials submitted for approval to this specification shall include the following: 5.1.1 A detailed, signed test report documenting testing to this specification per MPAPS P-9543. 5.1.2 The complete procedure use
31、d for preparing and curing materials for test, especially surface preparation (when appropriate) and condition of the test materials. 5.1.3 A complete description, including engineering prints and pictures of any non-standard test fixtures used. 5.1.4 Adhesive, substrate and any chemicals used for b
32、onding where appropriate. 5.2 Submission The material test report shall be submitted to: Manager, Materials Engineering Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN 5.3 Approval A report from International will be issued approv
33、ing new materials to this specification. Formal approval is not granted until this report has been published and the new material is listed in this specification. However, the approval report may be used as authorization for usage of that approved material/process prior to a change to this specifica
34、tion. 5.4 Quality Control Plan A Quality Control Plan for this product will be established by mutual agreement between International and the supplier. Unless specific exception is noted, the following characteristics, where applicable*, shall be included in the plan as features for management by sta
35、tistical process control. * Static Stiffness * Other characteristics for inclusion in the control plan may be specified on the engineering drawing and/or purchase order. * See Engineering Design Standard A-16. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier Requirements All suppliers to Interna
36、tional Truck and Engine are required to be registered to ISO 9001 Quality System Requirements. International 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 mainta
37、in their certification with an accredited registrar and must furnish copies of registration certificates to their International Corporate Buyer upon request. KCNUMBER: MPAPS L-6044 TITLE: Rear Hood Mounts REVISION: 1702 This document is restricted and may not be sent outside Navistar, Inc. or reprod
38、uced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar, Inc. FEBRUARY 2017 Page 5 of 7 6.2 Approval Parts supplied against contracts or purchase orders citing this specification shall be equivalent in all respects to those
39、samples that 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 practices, construction, color, or labeling of the product are required, the supplier shall notify Materials En
40、gineering and Purchasing & Logistics 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
41、 for change. 6.3 Process Control The 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 pro
42、viding all required properties. The part supplier and the plant metallurgist and/or the 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 b
43、e in accordance with Navistar Supplier Packing and Shipping Standard. D-13. 8.0 DESIGNATION ON DRAWINGS Examples: Rear Hood Mount, MPAPS L-6044, Type I 9.0 TECHNICAL INFORMATION For further information related to the technical content of this specification, contact: Suppliers may purchase controlled
44、 copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS Markit Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ NUMBER: MPA
45、PS L-6044 TITLE: Rear Hood Mounts REVISION: 1702 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. 2017 by Navistar, Inc. FEBRUARY 2017 Page 6 of 7 Table 1
46、 Property and Performance Requirements Designation: I II III Property Material Urethane Urethane* SBR/BR Hardness 73D 93A 65A Tensile Strength 50 43 10 Elongation 230 525 300 Tear Resistance 190 100 26 Compression Set 8 (70C) 22 (70C) 50 (70C) Low Temperature Pass Pass Pass Ozone Resistance N/A N/A
47、85% Adhesion 2.8 2.8 2.8 Heat Resistance Hardness 5 5 15 Tensile Strength 30 30 30 Elongation -50 -50 -50 Adhesion -10 -10 -10 Salt Spray/Adhesion -15 -15 -15 Pico Abrasion R R 140 Staining Pass Pass Pass Coefficient of Friction Static R .34 R Kinetic R .29 R Dynamic Properties Direction of test Y Y
48、 Y Preload R R R Direction of preload R R R Amplitude R R R Frequency R R R Temperature C R R R Rate N/mm 15% R R R Damping Coefficient N/mm Max R R R Dynamic Fatigue Direction of test TBD TBD TBD Preload TBD TBD TBD Direction of preload TBD TBD TBD Amplitude TBD TBD TBD Frequency TBD TBD TBD Temperature C TBD TBD TBD Duration (cycles
