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. 2012 by Navistar, Inc. OCTOBER 2012 Page 1 of 4 NAVISTAR, INC. TMS (TRUCK MATERIAL SPECIFICATION) NUMBER:
2、 TMS-1062 TITLE: Clamps, Spring Tension, Type CTB CURRENT REV. No.: 1210 DATE: October 2012 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: Rev. 1110 - October 2011 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may in
3、volve 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 to use. Chan
4、ge Notice: Revised Section 4.2 Finish requirements; revised Section 4.2.1 on accelerated corrosion testing requirements; added Section 4.4.5 on Adhesive Pull-off Force; editorial changes. Reference: File Keywords: Spring Clamps; Engine Coolant 1.0 APPLICATION This specification covers requirements f
5、or spring tension clamps consisting of a flat band stock, heat treated to a spring temper, and used to seal coolant connections between the engine, radiator and heater core. 2.0 SCOPE This specification covers material and finish requirements, corrosion testing requirements, performance testing and
6、test requirements, quality plan, quality control, source approval, and shipping and identification requirements. 2.1 Restricted Chemical Substances Effective JULY 1, 1997, all product supplied to the requirements of this specification must comply with the requirements of CEMS B-50. 3.0 REFERENCE DOC
7、UMENTS 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 ISO 9001 or TS-16949 NAVISTAR Manufacturing Standard MS-D-13 NAVISTAR Eng. Design Std. A-
8、16 NAVISTAR Engineering Dwg. 3523434C1 NAVISTAR Engineering Dwg. 3523435C1 NAVISTAR TMS-6025 CFR Title 29, Part 1910 SAE J1508 ASTM B 117 SAE J1610 SAE J2334 NAVISTAR CEMS G-20 4.0 GENERAL REQUIREMENTS Parts supplied shall meet all applicable requirements of SAE J1508. 4.1 Material Clamps shall be m
9、ade of carbon or alloy steel heat treated to Rockwell hardness 50-54 HRC to meet the performance requirements specified herein. NUMBER: TMS-1062 TITLE: Clamps, Spring Tension, Type CTB REVISION: 1210 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permiss
10、ion from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2012 by Navistar, Inc. OCTOBER 2012 Page 2 of 4 4.2 Finish The clamps shall be trivalent zinc plated (per CEMS G-20 Class 8F) or coated with an aluminum-organic coating capable of passing 480 hours of ASTM
11、 B 117 salt fog testing without evidence of red rust. The coated parts will be free of hydrogen embrittlement. Additional requirements are shown below. 4.2.1 Accelerated Corrosion Test 4.2.1.1 Sample Preparation To condition samples for testing, a box no larger than 10” (254 mm) on any side, will be
12、 filled of the way with clamps. The box will then be sealed in a manor to prevent it from coming open during conditioning. Slowly slide the box off of a 29” 30” (0.74 m 0.76 m) surface, allowing it to drop to the ground. Repeat this process 30 times, alternating the top and bottom of the box facing
13、up between each drop. 4.2.1.2 Acceptance Criteria After 30 cycles of SAE J2334 cyclic corrosion testing, the sample shall be rated at an 8 or better when compared to ASTM D 610. 4.2.2 Coating/Finish Test Coated clamps shall be exposed to test fluids, including diesel fuel, engine oil, coolants, brak
14、e fluids, and/or other fluids agreed upon, using a test method and test duration agreed upon between the supplier and the purchaser. After testing, there shall be no softening or other failure of the coating. 4.3 Dimensional Requirements Dimensional requirements are shown on Engineering drawings P/N
15、 3523434C1 and P/N 3523435C1. 4.4 Performance Requirements Clamps supplied shall meet performance requirements described herein. Test hoses used shall meet requirements of TMS-6025. 4.4.1 Leakage Test Test shall be performed with water at ambient temperature. A 4-inch length of hose is assembled on
16、test mandrels of appropriate size with the test clamp sealing one end of the hose to the mandrel. Pressure will be increased gradually until leakage is observed. Leakage pressure will not be less than 2.8 bar (41.7 psi). 4.4.2 Stress Corrosion Cracking The test clamp will be assembled on a plastic m
17、andrel having a diameter 0.3 mm (0.012 inch) less than the full open diameter of the clamp and immersed in a 0.9% solution of HCL for a minimum period of 8 minutes. No cracking or breakage of the clamp is permitted. 4.4.3 Effective Clamping Force The effective clamping force will be measured using a
18、 segmented load cell. The clamp is to be assembled on the segmented load cell at room temperature and the clamping forces are the average force values of a 3-segment load cell measured at 120 locations of clamp, 0 point between clamp tangs. The clamping force measured will meet the 3-segment force v
19、alue for each nominal size of clamp as shown on the drawing (see P/N 27150300 and Clamp P/N 2022867C1). NUMBER: TMS-1062 TITLE: Clamps, Spring Tension, Type CTB REVISION: 1210 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Techn
20、ical Standards. Suppliers are required to assume all patent liability. 2012 by Navistar, Inc. OCTOBER 2012 Page 3 of 4 4.4.4 PVT Cycling Test Perform pressure, vibration, and temperature testing using a PVT test facility meeting the requirements of SAE J1610. The method of SAE J1610 may be used, exc
21、ept that the type CTB test clamps will be used to seal hose connections, or a specific test program detailing temperatures, pressures, and vibration amplitude and frequencies for each cycle and previously agreed upon between the supplier and purchaser may be used. 4.4.5 Adhesive Pull-Off Force 4.4.5
22、.1 Sample Preparation The hose end shall be cleaned of any oil, dirt, and debris using isopropyl alcohol. The sample will be allowed to dry before a bead of adhesive representative of what is to be used in production will be applied to the clamp. The clamp will then be fixed to the hose with a norma
23、l force not exceeding 5 N for a period of 30 60 seconds. The samples will then be allowed to cure overnight before testing. 4.4.5.2 Test Method The sample will be fixed in a tensile testing frame with the hose attached to one end and the clamp attached to the other. The sample will then be pulled at
24、 a rate of 1 in/min (25.4 mm/min) to failure. The peak load and failure mode will be recorded. 4.4.5.3 Acceptance Criteria The peak load recorded will exceed 35 lbs (156 N) of force and the failure mode should consist of cohesive failure of the adhesive. There should be no signs of the clamp coating
25、 peeling from the metal substrate of the clamp. 5.0 QUALITY A Quality Control Plan for this product will be established by mutual agreement between Navistar and the supplier. The following items, where applicable,* will be included in the control plan as dimensional features for management by statis
26、tical process control.* 1. Clamp Hardness 2. Effective Clamping Force * Additional 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 Require
27、ments All suppliers to Navistar, Inc. 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 requirements. Suppliers mu
28、st maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Navistar Corporate Buyer upon request. NUMBER: TMS-1062 TITLE: Clamps, Spring Tension, Type CTB REVISION: 1210 This document is restricted and may not be sent outside Navistar,
29、Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2012 by Navistar, Inc. OCTOBER 2012 Page 4 of 4 6.2 Approval Parts supplied against contracts or purchase orders citing this specification shall be equivalent in all respe
30、cts 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 notif
31、y 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 1910 shall be
32、 submitted with the request 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 wi
33、th 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. 7.0 SHIPPING, PACKING AND IDENTIFICATION Loading, packing and identification shall be in acc
34、ordance with Manufacturing Std. MS-D-13. 8.0 DESIGNATION ON DRAWINGS The drawing will reference TMS-1062 for quality requirements. The KCC symbol will refer to TMS-1062. 9.0 CONTACT INFORMATION 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. 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:/
