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. 2014 by Navistar, Inc. AUGUST 2014 Page 1 of 5 NAVISTAR, INC. Material, Parts, and Process Specifications
2、 (MPAPS) NUMBER: MPAPS E06-5019 Former Designation: TITLE: CARBON SCRAPER RING MATERIAL CURRENT REV No.: 1408 DATE: AUGUST 2014 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: 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. Change Notice: NEW 1.0 APPLICATION This specification covers material for a diesel engine cylindrical component known as a carbon scraper ring, protection ring, fire ring, or anti-polishing ring that is inserted in the upper part of an engine cylinder liner in the position of a top dead centr
5、e above the top land of the piston (Figure 1). Its functions and characteristics are: Scrapes off the hard carbon deposit which forms on the top land of the piston. Helps to prevent the inner cylinder wall from wearing and to keep lubricating oil consumption low level. Same heat expansion as a cylin
6、der liner by using same material. 2.0 SCOPE This specification covers material composition and properties requirements of the carbon scraper ring material for diesel engine cylinder liners 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this
7、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 Specifications, Standards, and Regulations are referenced in this specification. Quality System
8、 Standard ISO 9001 or TS-16949 CFR Title 29, Part 1910 NAVISTAR CEMS E-6 ISO 945 NAVISTAR Manufacturing Std. MS-D-13 NAVISTAR Engineering Design Std A-16 NAVISTAR MPAPS B-50 NUMBER: MPAPS E06-5019 TITLE: Carbon Scraper Ring Material REVISION: 1408 This document is restricted and may not be sent outs
9、ide Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. AUGUST 2014 Page 2 of 5 4.0 REQUIREMENTS 4.1 Chemical Composition (wt %) Figure 1 Alloyed cast gray iron: Carbon 2.9 - 3.7 Silicon 1.8
10、 - 2.8 Manganese 0.5 - 1.0 Phosphorous 0.05 - 0.4 Sulfur 0.12 MAX Chromium 0.4 MAX Boron 0.03 - 0.08 Copper 0.3 - 0.6 4.2 Microstructure The matrix structure shall consist of lamellar pearlite with free ferrite not exceeding 4% and with 3% to 8 % boron carbides preferably forming a continuous networ
11、k. Graphite: uniformly distributed graphite flakes type A and B, size 4 to 6 per ISO 945 4.3 Mechanical Properties Tensile Stress ： min. 255MPa Fatigue strength: 182 MPa Coefficient of Thermal Expansion: 11.3x10-6 Hardness ： HRB 94 - 104 Poissons ratio: 0.3 NUMBER: MPAPS E06-5019 TITLE: Carbon Scrap
12、er Ring Material REVISION: 1408 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. 2014 by Navistar, Inc. AUGUST 2014 Page 3 of 5 Figure 2 Microstructure 10
13、0X Figure 3 Microstructure 400X 5.0 QUALITY The ring casting shall be free from any defects detrimental to its performance. 6.0 QUALIFICATION Engineering qualification of sources is required in advance of production shipments. Suppliers shall submit samples for approval of finish, luster, color and
14、appearance to the Navistar Industrial Design Group. Samples shall be accompanied by test data certifying that all requirements of the specification have been met. Upon approval, styling master samples denoting the minimum level of acceptable appearance quality shall be developed and retained by the
15、supplier and the quality department of each using NAVISTAR facility. NUMBER: MPAPS E06-5019 TITLE: Carbon Scraper Ring Material REVISION: 1408 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are req
16、uired to assume all patent liability. 2014 by Navistar, Inc. AUGUST 2014 Page 4 of 5 6.1 Quality Control Plan A Quality Control Plan for products supplied to the requirements of this specification will be established by mutual agreement between NAVISTAR and the supplier. 7.0 SOURCE APPROVAL AND QUAL
17、ITY CONTROL 7.1 Supplier Requirements All suppliers to NAVISTAR are required 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
18、requirements. Suppliers must maintain their certification with an accredited 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 res
19、pects 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 practices, construction, color, or labeling of the product are required, the supplier shall not
20、ify NAVISTAR Materials Engineering 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 amended or updated Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 19
21、10 shall be submitted with the request for change. 7.3 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 con
22、trol and with a process capable of providing all required properties. The 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
23、 NAVISTAR Manufacturing Standard MS-D-13. Parts shall be packaged so as to avoid any damage in shipment detrimental to the appearance of the part. 9.0 DESIGNATION ON DRAWINGS Material: Alloyed cast gray iron, MPAPS E06-5019 NUMBER: MPAPS E06-5019 TITLE: Carbon Scraper Ring Material REVISION: 1408 Th
24、is 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. 2014 by Navistar, Inc. AUGUST 2014 Page 5 of 5 10.0 TECHNICAL INFORMATION For further information related t
25、o 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 Global Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ A.0 GENERAL INFORMATION Approved supplier: TPR http:/tpr.co.jp/tp_e/
