1、 INTERNATIONAL TRUCK AND ENGINE CORPORATION TMS (TRUCK MATERIAL SPECIFICATION) NUMBER: TMS-4523 TITLE Corrosion-Resistant Zinc-Aluminum Integrally Lubricated Inorganic Coating REVISION: NEW WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering DATE ISSUED: February 2006 PRINTED
2、 COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT 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 hea
3、lth practices and to determine the applicability of regulatory limits prior to use. Change Notice: NEW SPECIFICATION Reference: File 20-2; 30-13G Keywords: Corrosion Resistant Coatings; Fasteners; hex-chrome free; 1.0 APPLICATION This specification covers the requirements for a silvery, corrosion re
4、sistant, non-electrolytically applied, water-based coating for steel substrates. The coating is heat-converted from an aqueous dispersion of zinc and aluminum flakes, and contains a PTFE lubricant dispersed through the film thickness. This coating system is free of both hexavalent and trivalent chro
5、mium, and is suitable for high hardness parts since hydrogen embrittlement is not induced by the process. Typical applications include interior and exterior parts requiring lubrication and good corrosion resistance, externally and internally threaded fasteners M5 and larger, internally recessed fast
6、eners, stampings, brackets, clips, clamps, etc. (For internal recessed fasteners, such as socket head or Torx head screws, it is recommended that the coating be applied via dip-spin tilt-tumble equipment.) This coating should not be used on parts which will come in contact with uncoated copper, magn
7、esium, or stainless steel, but will provide good bi-metallic corrosion resistance when in contact with aluminum. Coating should not be used on materials which might be adversely affected by a cure temperature range of 288-315C (550-600F). The maximum continuous service temperature is 280C (536F). 2.
8、0 SCOPE This specification covers the general coating requirements, part performance, fastener torque-tension requirements, quality, KCC, source approval and quality control, packing, shipping, and identification requirements, designation on drawings, and approved products. 2.1 Restricted Chemical S
9、ubstancesEffective 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 DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following standards,
10、specifications and regulations are referenced in this specification. Quality System Standard QS-9000 (ISO 9000 or TS-16949) ASTM B 117 INTERNATIONAL IQR Quality Standard ASTM D 610 INTERNATIONAL Engr. Design Standard A-16 CFR Title 29, Part 1910 INTERNATIONAL Manufacturing Standard D-13. SAE/USCAR-1
11、1 INTERNATIONAL CEMS B-50 SAE J2334 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. 2006 International Truck and Engine Corpo
12、ration FEBRUARY 2006 Page 1 of 4 NUMBER: TITLE: REVISION: TMS- 4523 Corrosion-Resistant Zinc-Aluminum Integrally Lubricated Inorganic Coating NEW This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from 4.0 GENERAL REQUI
13、REMENTS 4.1 Coating Requirements4.1.1 Appearance Coated parts shall be uniform in color, and free from runs, sags, cracks, pores/blisters, and rough spots. The coating shall be dry to the touch, and not feel oily or tacky. 4.1.2 Thickness This coating will typically consist of 2 layers, having a typ
14、ical total thickness of 6-10 m min. (or coating weight of 24 g/m2min.). The coating shall not have an adverse effect on production assembly and disassembly practices. After coating, the parts must pass the appropriate thread GO gages without sticking or binding. An evaluation of coating thickness on
15、 threads will be included in the Quality Control Plan for each part. 4.2 Part Performance 4.2.1 Adhesion After curing, coated parts shall show no flaking, peeling, or loss of adhesion with normal handling. Parts shall show no evidence of blistering, flaking, peeling, or appearance changes, after hea
16、ting coated parts to 120C for 60 minutes. 4.2.2 Flexibility Coating shall withstand normal handling and storage conditions without chipping and shall be capable of withstanding the normal extension and compression of springs and normal flexing of parts such as spring clips during assembly without lo
17、ss of adhesion. 4.2.3 Corrosion Resistance Coated parts shall be subjected to corrosion testing in neutral salt spray per ASTM B117 and/or cyclic corrosion testing per SAE J2334. Tested parts shall be evaluated per ASTM D 610, Grade 6 or better, and be free of corrosion product after testing per the
18、 following schedule: Salt spray testing Cyclic corrosion testing White corrosion Red rust White corrosion Red rust 240 hr 600 hr 10 cycles 40 cycles Threaded parts shall be evaluated on areas other than the threaded portion. 4.2.4 Torque Tension Requirement 4.2.4.1 Method SAE/USCAR-11Control parts 7
19、/16 X 20 UNF or M10 x 1.5 bolts) shall be processed along with each production lot of parts being coated. 4.2.4.2 Required: Control parts will be tested to ensure that the torque values meet the required value of 60 12 Nm to develop a tension of 28.3 kN. Tightening speed shall be 30 3 RPM. 5.0 QUALI
20、FICATION Pre-production samples, accompanied by a certified laboratory report indicating conformance to all requirements of this specification, shall be submitted to Truck Development and Technology Center for testing and approval prior to shipment of production parts Corporate Technical Standards S
21、uppliers are required to assume all patent liability. 2006 International Truck and Engine Corporation FEBRUARY 2006 Page 2 of 4 NUMBER: TITLE: REVISION: TMS- 4523 Corrosion-Resistant Zinc-Aluminum Integrally Lubricated Inorganic Coating NEW This document is restricted and may not be sent outside Int
22、ernational Truck and Engine Corporation or reproduced without permission from 5.1 KCC - Quality Control PlanA Quality Control Plan for this product will be established by mutual agreement between International and the supplier. Unless specific exception is noted, the following key control characteri
23、stics (KCC), where applicable*, shall be included in the plan as features for management by statistical process control*. 1. Torque-Tension Value of the control samples KCC 2. Coating Thickness 3. Corrosion Resistance * Other characteristics for inclusion in the control plan may be specified on the
24、engineering drawing and/or purchase order. * See INTERNATIONAL Engineering Design Standard A-16. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier RequirementsAll suppliers to INTERNATIONAL Truck and Engine are required to be registered to QS-9000 Quality System Requirements. INTERNATIONAL will a
25、lso accept ISO 9000 or 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 accredited registrar and must furnish copies of registration certificate
26、s to the INTERNATIONAL Corporate Buyer upon request. 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 wi
27、thout approval. In the event that changes in material, properties, processing practices, construction, color, or labeling of the product are required, the supplier shall notify Truck Development and Technology Center (TDTC) and International Purchasing and Supplier Development of the proposed change
28、(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. 6.3 Process ControlThe supplier shall either
29、perform and report results of tests on specific lots of parts produced 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 co
30、ntrol manager of the using International plant may determine testing and reporting requirements on specific products. 7.0 SHIPPING, PACKING, AND IDENTIFICATIONShipping and identification shall be in accordance with Manufacturing Standard D-13. Parts must be sufficiently cured at the time of packing
31、to withstand normal handling and shipping without marring. Parts supplied to this specification will still be able to meet the specified requirements for six months after received by the applicable plant(s) when stored at 5-28C (40-82F) with no direct heat or sunlight. Corporate Technical Standards
32、Suppliers are required to assume all patent liability. 2006 International Truck and Engine Corporation FEBRUARY 2006 Page 3 of 4 NUMBER: TITLE: REVISION: TMS- 4523 Corrosion-Resistant Zinc-Aluminum Integrally Lubricated Inorganic Coating NEW This document is restricted and may not be sent outside In
33、ternational Truck and Engine Corporation or reproduced without permission from 8.0 DESIGNATION ON DRAWINGSDrawings shall reference this specification as follows: Finish per TMS 4523 9.0 APPROVED PRODUCTS GEOMET500A (Metal Coatings International) 10.0 TECHNICAL INFORMATION For further information rel
34、ated to the technical content of this specification, contact: Materials Engineering and Technology Dept. Truck Development and Technology Center (TDTC) 2911 Meyer Road Fort Wayne, IN 46803 E-mail: MaterialsEngineeringNav-I Corporate Technical Standards Suppliers are required to assume all patent liability. 2006 International Truck and Engine Corporation FEBRUARY 2006 Page 4 of 4
