1、 This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2007 International Truck and Engine Corporation. INTERNATIONAL TRUCK AND ENG
2、INE CORPORATION TMS (TRUCK MATERIAL SPECIFICATION) NUMBER: TMS-7051 TITLE: Decorative Electroplated Chromium - Plastics REVISION: H WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering DATE ISSUED: October 2007 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVIS
3、ION 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 regulat
4、ory limits prior to use. Change Notice: Added Section 2.1; updated reference documents; editorial changes. Reference: File 30-13E Keywords Chrome plating, decorative chrome plastic, electroplate, chrome 1.0 APPLICATION This specification covers the decorative electroplated chromium used on interior
5、or exterior plastics. These parts may be exterior grilles, light bezels, nameplates, interior ornaments, knobs, or similar applications. 2.0 SCOPE This specification covers the material requirements of the base plastic, plating requirements, performance requirements, and quality of the finished part
6、, qualification, source approval and quality control. 2.1 Restricted Chemical SubstancesEffective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the CEMS B-50 specification. 3.0 REFERENCE DOCUMENTSUnless otherwise specified, the l
7、atest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 ASTM B 456 ASTM B 368 INTERNATIONAL Manufacturing Std. D-13 ASTM B 604 ASTM B 727 CFR Title 29, Part 1910 AS
8、TM B 244 INTERNATIONAL CEMS B-50 4.0 MATERIAL REQUIREMENTS - BASE PLASTIC The general plastic family from which the unplated plastic part is molded shall be compatible with the particular electroplating process used by the electroplater. The plastic part shall be free from visible molding defects, s
9、ink marks, weld or flow lines. Unless otherwise specified on the part drawing, the significant surface finish shall be equal to or better than the No. 2 diamond finish as found in the SPI-SPE Mold Finish Comparison Kit.* Where necessary, the plastic parts shall be stress relieved prior to plating. O
10、CTOBER 2007 Page 1 of 4 NUMBER: TITLE: REVISION: TMS-7051 Decorative Electroplated Chromium - Plastics H This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to a
11、ssume all patent liability. 2007 International Truck and Engine Corporation * Available from D-M-E Corporation, 1975 N. 17th Street, Melrose Park, IL - Licensed by Society of Plastic Industry and Society for Plastic Engineers. 4.1 Plating Requirements This section defines the minimum plate thickness
12、 required for bright and low gloss interior and exterior plated plastics. Systems other than those specified which demonstrate satisfactory performance may be approved by the Truck Development and Technology Center. Minimum Plating Thickness(1), mils (m) General Interior Interior Low Gloss General E
13、xteriorCopper 0.5 (12.7) 0.7 (l7.8) 0.7 (l7.8) Nickel Semi-Bright(2)- 0.5 (l2.7) 0.5 (l2.7)(3)Bright Or Low Gloss(2)0.2 ( 5.1) 0.3 ( 7.6) 0.3 ( 7.6)(3)Post Nickel Strike(4)- 0.1 ( 2.5) - Chromium 0.005 (.127) 0.01 (0.254) 0.01 (0.254) (1)Plating thickness shall be determined by ASTM B 244 The platin
14、g thickness is the minimum value permitted, determined at specified check points (“C-Points“) on the engineering drawing as designated by a rials Engineer. Mate(2)Semi-bright nickel is defined as a nickel plate containing less than 0.005% sulfur; bright nickel contains 0.04% sulfur minimum. The semi
15、-bright and bright layers can be differentiated with an etchant consisting of one part nitric acid (specific gravity - 1.42) and four parts glacial acetic acid. (3)Satylite finish which creates a low gloss as a result of a mechanical treatment on the semi-bright nickel and a chemical treatment on th
16、e bright nickel. (4)The microporous chrome layer shall exhibit a minimum of 10,000 pores/cm2as determined by the copper deposition (Dubpernell) method as described in ASTM B 456 or a minimum of 2000 pores/cm2as determined by active corrosion sites after testing as described in ASTM B 456. 4.2 Perfor
17、mance Requirements 4.2.1 Thermal Cycling and Corrosion Test: Exterior and Interior Parts 4.2.1.1 Method -CASS testing as per ASTM B 368 test method and procedure. Plated parts shall be subjected to three complete cycles consisting of the following sequence: 1) 82 3C (180 5F) for 2 hours. 2) 22 3C (
18、72 5F) for 1 hour. 3) -34 1C (-30 2F) for 2 hours. 4) 22 3C ( 72 5F) for 1 hour. 4.2.1.1.1 Rinse parts with tap water after each complete thermal cycle and examine for defects. 4.2.1.1.2 Perform CASS corrosion test for 40 hours (exterior only)* after the three thermal cycles. * Interior plated parts
19、; CASS test for 4 hours at the completion of the three thermal cycles. OCTOBER 2007 Page 2 of 4 NUMBER: TITLE: REVISION: TMS-7051 Decorative Electroplated Chromium - Plastics H This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without pe
20、rmission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2007 International Truck and Engine Corporation 4.2.1.2 Required There shall be no evidence of plating and/or plastic failure due to cracks, crazing, blistering, corrosion, and/or loss of plating adhe
21、sion. Corrosion failure shall be considered to have occurred if one or more of the listed conditions develops. 4.2.1.2.1 Corrosion products occurring in more than 2% of the grids* over the entire significant surface area. *Surfaces to be examined shall be divided into 6.4 mm (1/4 in) squares with li
22、nes having maximum width of 0.13 mm (0.005 in). 4.2.1.2.2 Corrosion products larger than 1.6 mm (1/16 in) in diameter. 4.2.1.2.3 Surface pitting corrosion which contains an area of more than 10 spots 1.2 mm (0.048 in) in diameter or larger in any grid section. 4.2.1.2.4 Corrosion products occurring
23、in more than 15% of the grids in any square (10 grids by 10 grids) covering significant surface area. 4.2.2 Thermal Shock Test: Exterior Parts A separate sample shall be subjected to three complete cycles consisting of the following sequence: 1) 2) 85C (185F) for 30 minutes. -34C (-30F) ethylene gly
24、col/H2O bath for 30 minutes. 4.2.2.1 Parts shall be transferred immediately from one environment to the other with no time allowed between cycles. There shall be no evidence of plating and/or plastic failure due to cracks, crazing, blistering, corrosion, and loss of plating adhesion. 4.2.3 Adhesion
25、After completion of the satisfactory number of prescribed thermal cycles and corrosion test, as well as the thermal shock test, parts passing these tests shall be scribed with an “X“ through the plating to the plastic surface. A strip of adhesive tape (#710 Scotch Tape - 3M Company) 1.9 cm (3/4 in)
26、wide, shall be applied to the scribed “X“. The tape shall be pulled at 90 to the surface and the part examined for lifting of the electroplate. Evidence of loss of adhesion shall be cause for rejection. 5.0 QUALITY The plated part shall have a bright or satin finish as specified and a uniform reflec
27、tive finish. Each plated deposit shall be adherent and free from cracks and foreign material (except for the post nickel strike and the resulting microporous chromium). The surface shall be dense, smooth, uniform, and free from stains, pinholes, nodules, or any other defects which affect the overall
28、 appearance of the plating or its ability to meet the requirements of this specification. 5.1 Qualification When requested, the vendor shall furnish parts made from a TDTC test mold to TDTC Materials Laboratory. These samples shall be accompanied by a detailed test report indicating conformance to a
29、ll requirements of this specification. The number of parts and types of materials shall be specified on the test part drawing. The mold for these parts shall be furnished to the vendor upon formal request and shall remain the responsibility of the vendor while in their possession. OCTOBER 2007 Page
30、3 of 4 NUMBER: TITLE: REVISION: TMS-7051 Decorative Electroplated Chromium - Plastics H This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent
31、liability. 2007 International Truck and Engine Corporation 6.0 SOURCE APPROVAL AND QUALITY CONTROL6.1 Supplier RequirementsAll suppliers to International Truck and Engine are required to be registered to ISO 9001 Quality System Requirements. International will also accept TS-16949 registration as lo
32、ng 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 their International Corporate Buyer upon requ
33、est. 6.2 ApprovalParts 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. In the event that changes in mat
34、erial, properties, processing practices, construction, color, or labeling of the product are required, the supplier shall notify Truck Development and Technology Center and International Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requiremen
35、ts 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 ControlThe supplier shall either perform and report results of tests on specific lots of
36、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. The part supplier and the plant metallurgist and/or the quality control manager of
37、the using International plant may determine testing and reporting requirements on specific products. 7.0 SHIPPING, PACKING AND IDENTIFICATIONLoading, packing, and identification shall be in accordance with Manufacturing Std. D-13. 8.0 DESIGNATION ON DRAWINGS Example: Chrome Plate as per TMS-7051 9.0
38、 CONTACT INFORMATION For further information related to the technical content of this specification, contact: Suppliers may obtain controlled copies of this specification by contacting: Materials Engineering and Technology Dept. Truck Development and Technology Center 2911 Meyer Road Fort Wayne, IN 46803 E-mail: MaterialsEngineeringNav-I Information Handling Service (IHS) 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/OCTOBER 2007 Page 4 of 4
